Friday 22 May 2020 MORNING Time of Issue: 0800 hours IST ALL INDIA WEATHER SUMMARY AND FORECAST BULLETIN Significant Weather Features ♦ The Deep Depression (remnant of Super Cyclonic Storm 'AMPHAN') has further weaken into a well marked low pressure area over North Bangladesh & neighbourhood at 2330 hours IST of 21st May, 2020 and now well marked low pressure area over North Bangladesh & neighbourhood persists. It is very likely to continue to move north-northeastwards and weaken further into a Low pressure area during next 12 hours. ♦ The Northern Limit of Monsoon (NLM) continues to pass through Lat.5°N/Long.85°E, Lat.8°N/Long.90°E, Car Nicobar, Lat.11°N/Long.95°E. ♦ Heat wave very likely to occur over Rajasthan during 22nd-25th May, West Madhya Pradesh, Vidarbha and Telangana during 22nd-24th May; over Coastal Andhra Pradesh & Yanam, North Interior Karnataka and Tamilnadu, Puducherry & Karaikal during 22nd-23rd May, over East Madhya Pradesh and Rayalseema during 22nd-24th May, over Uttar Pradesh during 22nd-25th May, 2020. Main Weather Observations ♦ Rain/Thundershowers observed (from 0830 hours IST to 1730 hours IST of yesterday): at most places over Arunachal Pradesh, Assam & Meghalaya and Sub-Himalayan West Bengal & Sikkim; at a few places over Gangetic West Bengal, Nagaland, Manipur, Mizoram & Tripura and Kerala & Mahe and at isolated places over Bihar, Rayalaseema and Tamilnadu, Puducherry & Karaikal. ♦ Rainfall recorded (from 0830 hours IST to 1730 hours IST of yesterday) (1 cm or more): Cherrapunji-8; Majbat and Rangia-4 each; Tezpur-3;Shillong, Goalpara and Dhubri-2 each; Cooch Behar, Purnea, Bhagalpur, Itanagar, Lakhimpur, Tangla, Chaparmukh, Thiruvananthapuram-1 each. ♦ Heavy rainfall yesterday occured at isolated places over Assam & Meghalaya. ♦ Thunderstorm observed ( From 0830 hours IST of yesterday to 0530 hours IST of today ) at isolated places over Kerala & Mahe. ♦ Maximum Temperature Departures as on 21-05-2020: Maximum temperatures were appreciably above normal (3.1°C to 5.0°C) at many places over Jammu & Kashmir, Ladakh, Gilgit-Baltistan, Muzaffarabad; at a few places over Himachal Pradesh, Saurashtra & Kutch and Coastal Andhra Pradesh & Yanam; at isolated places over Uttarakhand, Haryana, Chandigarh & Delhi and Gujarat region; above normal (1.6°C to 3.0°C) at most places over West Rajasthan and Rayalaseema; at many places over Punjab, Madhya Maharashtra, Marathwada and Telangana; at a few places over East Rajasthan, West Madhya Pradesh and Konkan & Goa and at isolated places over Odisha, Kerala & Mahe and Tamilnadu, Puducherry & Karaikal. They were markedly below normal (-5.0°C or less) at most places over Bihar and Jharkhand; at a few places over Arunachal Pradesh, Assam & Meghalaya and West Bengal & Sikkim; appreciably below normal (-3.1°C to -5.0°C) at isolated places over Chhattisgarh; below normal (-1.6°C to -3.0°C) at a few places over East Uttar Pradesh and at isolated places over West Uttar Pradesh and near normal over rest parts of the country. Yesterday, the highest maximum temperature of 46.0°C was reported at Vijaywada ( Coastal Andhra Pradesh & Yanam). ♦ Minimum Temperature Departures as on 21-05-2020: Minimum temperatures were above normal (1.6°C to 3.0°C) at many places over Rayalaseema; at a few places over West Rajasthan and Coastal Andhra Pradesh & Yanam; and at isolated places over Gujarat state, Madhya Maharashtra, Marathwada, Kerala and Tamilnadu, Puducherry & Karaikal. They were markedly below normal (-5.1°C or less) at a few places over isolated places over Odisha and at isolated places over Haryana, Chandigarh & Delhi; appreciably below normal (- 3.1°C to -5.0°C) at most places over Chhattisgarh; at many places over Madhya Pradesh and Vidarbha; at a few places over East Rajasthan and Uttar Pradesh; and at isolated places over Himachal Pradesh; below normal (-1.6°C to -3.0°C) at many places over Punjab; at a few places over Jammu & Kashmir, Ladakh, Gilgit-Baltistan & Muzaffarabad; at isolated places over Assam & Meghalaya and near normal over rest parts of the country. Yesterday, the lowest minimum temperature of 18.6°C was reported at Angul (Odisha) over the plains of the country. * Red color warning does not mean "Red Alert" Red color warning means "Take Action". Forecast and Warning for any day is valid from 0830 hours IST of day till 0830 hours IST of next day For more details kindly visit www.imd.gov.in or contact : +91 11 24631913, 24643965, 24629798 (Service to the Nation since 1875)
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Friday 22 May 2020MORNING
Time of Issue: 0800 hours ISTALL INDIA WEATHER SUMMARY AND FORECAST BULLETIN
Significant Weather Features
♦ The Deep Depression (remnant of Super Cyclonic Storm 'AMPHAN') has further weaken into a well marked low pressure area over North Bangladesh & neighbourhood at 2330 hours IST of 21st May, 2020 and now well marked low pressure area over North Bangladesh & neighbourhood persists. It is very likely to continue to move north-northeastwards and weaken further into a Low pressure area during next 12 hours.
♦ The Northern Limit of Monsoon (NLM) continues to pass through Lat.5°N/Long.85°E, Lat.8°N/Long.90°E, Car Nicobar, Lat.11°N/Long.95°E.
♦ Heat wave very likely to occur over Rajasthan during 22nd-25th May, West Madhya Pradesh, Vidarbha and Telangana during 22nd-24th May; over Coastal Andhra Pradesh & Yanam, North Interior Karnataka and Tamilnadu, Puducherry & Karaikal during 22nd-23rd May, over East Madhya Pradesh and Rayalseema during 22nd-24th May, over Uttar Pradesh during 22nd-25th May, 2020.
Main Weather Observations
♦ Rain/Thundershowers observed (from 0830 hours IST to 1730 hours IST of yesterday): at most places over Arunachal Pradesh, Assam & Meghalaya and Sub-Himalayan West Bengal & Sikkim; at a few places over Gangetic West Bengal, Nagaland, Manipur, Mizoram & Tripura and Kerala & Mahe and at isolated places over Bihar, Rayalaseema and Tamilnadu, Puducherry & Karaikal.
♦ Rainfall recorded (from 0830 hours IST to 1730 hours IST of yesterday) (1 cm or more): Cherrapunji-8; Majbat and Rangia-4 each; Tezpur-3;Shillong, Goalpara and Dhubri-2 each; Cooch Behar, Purnea, Bhagalpur, Itanagar, Lakhimpur, Tangla, Chaparmukh, Thiruvananthapuram-1 each.
♦ Heavy rainfall yesterday occured at isolated places over Assam & Meghalaya.
♦ Thunderstorm observed ( From 0830 hours IST of yesterday to 0530 hours IST of today ) at isolated places over Kerala & Mahe.
♦ Maximum Temperature Departures as on 21-05-2020: Maximum temperatures were appreciably above normal (3.1°C to 5.0°C) at many places over Jammu & Kashmir, Ladakh, Gilgit-Baltistan, Muzaffarabad; at a few places over Himachal Pradesh, Saurashtra & Kutch and Coastal Andhra Pradesh & Yanam; at isolated places over Uttarakhand, Haryana, Chandigarh & Delhi and Gujarat region; above normal (1.6°C to 3.0°C) at most places over West Rajasthan and Rayalaseema; at many places over Punjab, Madhya Maharashtra, Marathwada and Telangana; at a few places over East Rajasthan, West Madhya Pradesh and Konkan & Goa and at isolated places over Odisha, Kerala & Mahe and Tamilnadu, Puducherry & Karaikal. They were markedly below normal (-5.0°C or less) at most places over Bihar and Jharkhand; at a few places over Arunachal Pradesh, Assam & Meghalaya and West Bengal & Sikkim; appreciably below normal (-3.1°C to -5.0°C) at isolated places over Chhattisgarh; below normal (-1.6°C to -3.0°C) at a few places over East Uttar Pradesh and at isolated places over West Uttar Pradesh and near normal over rest parts of the country. Yesterday, the highest maximum
temperature of 46.0°C was reported at Vijaywada ( Coastal Andhra Pradesh & Yanam).
♦ Minimum Temperature Departures as on 21-05-2020: Minimum temperatures were above normal (1.6°C to 3.0°C) at many places over Rayalaseema; at a few places over West Rajasthan and Coastal Andhra Pradesh & Yanam; and at isolated places over Gujarat state, Madhya Maharashtra, Marathwada, Kerala and Tamilnadu, Puducherry & Karaikal. They were markedly below normal (-5.1°C or less) at a few places over isolated places over Odisha and at isolated places over Haryana, Chandigarh & Delhi; appreciably below normal (-3.1°C to -5.0°C) at most places over Chhattisgarh; at many places over Madhya Pradesh and Vidarbha; at a few places over East Rajasthan and Uttar Pradesh; and at isolated places over Himachal Pradesh; below normal (-1.6°C to -3.0°C) at many places over Punjab; at a few places over Jammu & Kashmir, Ladakh, Gilgit-Baltistan & Muzaffarabad; at isolated places over Assam & Meghalaya and near normal over rest parts of the country. Yesterday, the lowest minimum temperature of 18.6°C was reported at Angul (Odisha) over the plains of the country.
* Red color warning does not mean "Red Alert" Red color warning means "Take Action". Forecast and Warning for any day is valid from 0830 hours IST of day till 0830 hours IST of next day
For more details kindly visit www.imd.gov.in or contact : +91 11 24631913, 24643965, 24629798 (Service to the Nation since 1875)
Meteorological Analysis (Based on 0530 hours IST)
♦ The Well Marked Low Pressure Area over North Bangladesh & neighbourhood persists. It is very likely to continue to move north-northeastwards and weaken further into a Low pressure area during next 12 hours.
♦ The Northern Limit of Monsoon (NLM) continues to pass through Lat.5°N/Long.85°E, Lat.8°N/Long.90°E, Car Nicobar, Lat.11°N/Long.95°E.
♦ The Western Disturbance as a trough with its axis at 5.8 km above mean sea level roughly along Longitude 62°E to the north of latitude 25°N persists.
♦ The cyclonic circulation over East Uttar Pradesh extending upto 0.9 km above mean sea level persists.
♦ The cyclonic circulation over southeast Arabian Sea off Kerala coast between 2.1 km and 5.8 km above mean sea level persists.
Weather Forecast for next 5 days * upto 0830 hours IST of 27th May, 2020
♦ Meteorological sub-division wise detailed 5 days precipitation forecast is given in Table-1.
♦ Maximum temperatures likely to rise by 3-5°C over eastern states during next 72 hours. No significant change in maximum temperatures likely over Gujarat state during next 24 hours and gradual reduction by 3-4°C during subsequent 48 hours.
♦ No significant change in maximum temperatures likely over rest parts of the country during next 24 hours.
Weather Outlook for subsequent 2 days from 27th May, 2020 to 29th May, 2020
♦ Fairly widespread to widespread rain/ thundershowers likely over northeast India and over adjoining parts of east India. Isolated heavy rainfall is also likely over northeast India.
♦ Scattered to fairly widespread rain/ thundershowers likely over parts of south peninsular India and Islands. Isolated to scattered rain/ thundershowers likely over Western Himalayan region and parts of north and east India.
♦ Dry weather likely to prevail over the remaining parts of the country.
* Red color warning does not mean "Red Alert" Red color warning means "Take Action". Forecast and Warning for any day is valid from 0830 hours IST of day till 0830 hours IST of next day
For more details kindly visit www.imd.gov.in or contact : +91 11 24631913, 24643965, 24629798 (Service to the Nation since 1875)
Weather Warning during next 5 days *
22 May (Day 1): ♦ Thunderstorm accompanied with lightning, hail & gusty winds (speed reaching 30-40 kmph) very likely at isolated places over Jammu & Kashmir, Ladakh, Gilgit-Baltistan, Muzaffarabad; with lightning & gusty winds (speed reaching 30-40 kmph) at isolated places over Punjab, Haryana, Chandigarh & Delhi, Kerala & Mahe and Lakshadweep and with lightning at isolated places over Himachal Pradesh.
♦ Heavy rainfall very likely at isolated places over Arunachal Pradesh.
♦ Heat wave conditions very likely in isolated pockets over Rajasthan, Coastal Andhra Pradesh & Yanam, Rayalseema, Telangana, North Interior Karnataka, Tamilnadu, Puducherry & Karaikal, Madhya Pradesh and Vidarbha. Duststorm accompanied with gusty winds (speed reaching 30-40 kmph) very likely at isolated places over Rajasthan.
♦ Squally weather (wind speed reaching 40-50 kmph) very likely to prevail over Southeast Arabian Sea and Kerala coast. Strong surface wind speed reaching 40-50 kmph very likely to prevail over Southwest Arabian Sea and Gulf of Mannar.
23 May (Day 2): ♦ Thunderstorm accompanied with lightning, hail & gusty winds (speed reaching 30-40 kmph) likely at isolated places over Jammu & Kashmir, Ladakh, Gilgit-Baltistan, Muzaffarabad and Himachal Pradesh and with lightning & gusty winds (speed reaching 30-40 kmph) at isolated places over Uttarakhand, Punjab and Haryana, Chandigarh & Delhi and with lightning at isolated places over Sub-Himalayan West Bengal & Sikkim, Kerala & Mahe and Lakshadweep.
♦ Heavy rainfall very likely at isolated places over Sub-Himalayan West Bengal & Sikkim.
♦ Heat wave conditions very likely in isolated pockets over Uttar Pradesh, Rajasthan, Coastal Andhra Pradesh & Yanam, Rayalseema, Telangana, North Interior Karnataka, Tamilnadu, Puducherry & Karaikal, Madhya Pradesh and Vidarbha. Duststorm accompanied with gusty winds (speed reaching 30-40 kmph) likely at isolated places over Rajasthan.
♦ Strong surface wind speed reaching 40-50 kmph very likely to prevail over Southwest Arabian Sea.
24 May (Day 3): ♦ Thunderstorm accompanied with lightning & gusty winds (speed reaching 30-40 kmph) likely at isolated places over Bihar, Arunachal Pradesh, Assam & Meghalaya, South Interior Karnataka, Tamilnadu, Puducherry & Karaikal and Kerala & Mahe and with lightning at isolated places over Jharkhand and Lakshadweep.
♦ Heavy to very rainfall likely at isolated places over Sub-Himalayan West Bengal & Sikkim and Heavy rainfall likely at isolated places over Arunachal Pradesh, Assam & Meghalaya, South Interior Karnataka and Kerala & Mahe.
♦ Heat wave conditions very likely in isolated pockets over Uttar Pradesh, Rajasthan, Rayalseema, Telangana, Madhya Pradesh and Vidarbha.
♦ Strong surface wind speed reaching 40-50 kmph very likely to prevail over Southwest Arabian Sea.
25 May (Day 4): ♦ Thunderstorm accompanied with lightning & gusty winds (speed reaching 30-40 kmph) likely at isolated places over Bihar, Arunachal Pradesh, Assam & Meghalaya and Nagaland, Manipur, Mizoram & Tripura, South Interior Karnataka, Tamilnadu, Puducherry & Karaikal and Kerala & Mahe and with lightning at isolated places over Jharkhand, Odisha, Gangetic West Bengal & Sikkim and Lakshadweep.
♦ Heavy rainfall likely at isolated places over Sub-Himalayan West Bengal & Sikkim, Arunachal Pradesh, Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, South Interior Karnataka and Tamilnadu, Puducherry & Karaikal.
♦ Heat wave conditions likely in isolated pockets over Uttar Pradesh and Rajasthan.
♦ Strong surface wind speed reaching 40-50 kmph very likely to prevail over Southwest Arabian Sea.
26 May (Day 5): ♦ Thunderstorm accompanied with lightning & gusty winds (speed reaching 30-40 kmph) likely at isolated places over Bihar, Arunachal Pradesh, Assam & Meghalaya and Nagaland, Manipur, Mizoram & Tripura, South Interior Karnataka, Tamilnadu, Puducherry & Karaikal and Kerala & Mahe and with lightning at isolated places over Jharkhand, Odisha, Gangetic West Bengal & Sikkim and Lakshadweep.
♦ Heavy rainfall likely at isolated places over Sub-Himalayan West Bengal & Sikkim, Arunachal Pradesh, Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, South Interior Karnataka and Tamilnadu, Puducherry & Karaikal.
♦ Heat wave conditions likely in isolated pockets over Uttar Pradesh and Rajasthan.
♦ Strong surface wind speed reaching 40-50 kmph very likely to prevail over Southwest Arabian Sea.
Kindly visit State level Meteorological Centre / Regional Meteorological Centre website for district wise forecast & color coded warning.
* Red color warning does not mean "Red Alert" Red color warning means "Take Action". Forecast and Warning for any day is valid from 0830 hours IST of day till 0830 hours IST of next day
For more details kindly visit www.imd.gov.in or contact : +91 11 24631913, 24643965, 24629798 (Service to the Nation since 1875)
Table-1
* Red color warning does not mean "Red Alert" Red color warning means "Take Action". Forecast and Warning for any day is valid from 0830 hours IST of day till 0830 hours IST of next day
For more details kindly visit www.imd.gov.in or contact : +91 11 24631913, 24643965, 24629798 (Service to the Nation since 1875)
Advance of Southwest Monsoon: ♦ The Southwest Monsoon has advanced into some parts of South Bay of Bengal, Nicobar Islands & Andaman Sea on 17th May 2020.The Northern Limit of Monsoon( NLM) passed through Lat.5°N/Long.85°E, Lat.8°N/Long.90°E, Car Nicobar,Lat.11°N/Long.95°E on 17th May 2020 and it continued like that till the end of the week. Low Pressure System: ♦ A Low pressure area has formed over Southeast Bay of Bengal and adjoining south Andaman Sea towards the end of last week. It lay as a Well Marked Low Pressure Area over Southeast Bay of Bengal & neighborhood in the beginning of the week.It concentrated into a Depression Iin the early hours on 16th May and further intensified into a Deep Depression in the afternoon of the same day. It intensified further into a Cyclonic storm "AMPHAN" (pronounced as UM-PUN) by the evening of 16th May, 2020 over Southeast Bay of Bengal and neighbourhood; it further intensified into a Severe Cyclonic Storm in the morning of 17th May, 2020 over Southeast Bay of Bengal and neighbourhood. It underwent rapid intensification during next twenty four hours and accordingly attained the intensity of Very Severe Cyclonic Storm by the afternoon of 17th May, 2020, of Extremely Severe Cyclonic storm " in the early hours of 18th May, 2020 and that of Super Cyclonic Storm in the forenoon of 18th May, 2020.It maintained the same intensity for about a day’s period but weakened slightly and lay as an Extremely Severe Cyclonic Storm over West Central Bay in the afternoon of 19th May 2020.Moving nearly northwards and then north-northeastwards, it crossed West Bengal – Bangladesh coasts as a Very Severe Cyclonic Storm with a wind speed of 155-165 kmph gusting to 185 kmph across Sundarbans, near Lat. 21.65°N and longitude 88.3°E. After crossing, It moved north-northeastwards and weakened into a Severe Cyclonic Storm and lay over Bangladesh and adjoining West Bengal around the midnight on 20th may 2020. ♦ Kolkata (Dum Dum) reported 130 kmph at 1855 hrs IST and Kolkata (Alipore) reported 112 kmph at 1752 hrs IST of 20th May in association with the passage of the system. ♦ This system in its initial stages has caused fairly widespread to widespread rainfall/thunderstorm activity along with isolated heavy falls over Andaman & Nicobar Islands in the beginning of the week and fairly widespread to widespread rainfall along with very intense rainfall activity over Coastal Odisha and West Bengal towards the end of the week. ➢ Strengthening of westerlies along the west coast due to the formation of low pressure system in the Bay of
Bengal and wind convergence have caused fairly widespread to widespread rainfall/thunderstorm activity along with isolated intense to very intense rainfall over parts of south peninsular India.
➢ Remnants of Western disturbances and east-west troughs in lower levels have caused scattered to fairly widespread rain/thunderstorm activity over northeast and adjoining parts of east India.
Heavy Rainfall: ♦ Heavy to very heavy rainfall with extremely heavy rainfall at isolated places had been recorded over Odisha on one day during the week. ♦ Heavy to very heavy rainfall at isolated places had been recorded at Sub Himalayan West Bengal & Sikkim, Kerala & Mahe and South Interior Karnataka on one day each during the week. ♦ Heavy rainfall had been recorded at isolated places over Sub Himalayan West Bengal & Sikkim on four days; over Assam & Meghalaya and Kerala & Mahe on three days each; over Coastal & North Interior Karnataka on two days each; over Andaman & Nicobar islands, Nagaland, Manipur, Mizoram & Tripura, Gangetic West Bengal, Bihar, Odisha, Chattisgarh, West Madhya Pradesh, Tamil Nadu, Puducherry &Karaikkal, and South Interior Karnataka on one day each during the week. Temperature Scenario: ♦The highest maximum temperature of 45.0oC had been recorded at Khargone (West Madhya Pradesh) on 20th May 2020, over the plains of the country during the week.
LEGEND: A few days- 3 days, Many days- 4 to 5 days and Most days- 6 to 7 days during the week.
Government of India Ministry of Earth Sciences
India Meteorological Department National Weather Forecasting Centre
METEOROLOGICAL ANALYSIS
♦ Last week’s Low pressure area over Southeast Bay of Bengal and adjoining south Andaman Sea lay as a Well Marked Low Pressure Area over Southeast Bay of Bengal & neighbourhood with the associated cyclonic circulation extending upto mid-tropospheric levels on 14th May 2020; It persisted over the same region with the associated cyclonic circulation extending upto mid-tropospheric levels on 15th; it concentrated into a Depression and lay centred at 0530 hrs IST of 16th May, 2020 over Southeast Bay of Bengal near latitude 10.4°N and longitude 87.0°E, about 1100 km south of Paradip (Odisha), 1250 km south of Digha (West Bengal) and 1330 km south-southwest of Khepupara (Bangladesh);it lay centred at 0830 hrs IST of the same day over Southeast Bay of Bengal near latitude 10.7°N and longitude 86.5°E, about 1060 km south of Paradip (Odisha), 1220 km south-southwest of Digha (West Bengal) and 1310 km south-southwest of Khepupara (Bangladesh); it intensified into a Deep Depression in the afternoon of the same day and lay centred at 1430 hrs IST of 16th May, 2020 over Southeast Bay of Bengal , near latitude 10.9°N and longitude 86.3°E, about 1040 km south of Paradip (Odisha), 1200 km south-southwest of Digha (West Bengal) and 1300 km southsouthwest of Khepupara (Bangladesh); remaining practically stationary over Southeast Bay of Bengal and neighbourhood it rapidly intensified into a Cyclonic storm "AMPHAN" (pronounced as UM-PUN) and lay centred at 1730 hrs IST of 16th May, 2020 over Southeast Bay of Bengal and neighbourhood, near latitude 10.9°N and longitude 86.3°E, about 1040 km south of Paradip (Odisha), 1200 km south-southwest of Digha (West Bengal) and 1300 km south-southwest of Khepupara (Bangladesh); Moving north-northwestwards and then northwestwards, it intensified into a Severe Cyclonic Storm and lay centred at 0830 hrs IST of 17th May, 2020 over Southeast Bay of Bengal and neighbourhood, near latitude 11.4°N and longitude 86.0°E, about 990 km south of Paradip (Odisha), 1140 km south-southwest of Digha (West Bengal) and 1260 km south-southwest of Khepupara (Bangladesh); moving slowly northtwards, it further intensified into a Very Severe Cyclonic Storm and lay centred at 1430 hrs IST of 17th May, 2020 over central parts of South Bay of Bengal and neighbourhood near latitude 11.7°N and longitude 86.0°E, about 960 km south of Paradip (Odisha), 1110 km south-southwest of Digha (West Bengal) and 1230 km south-southwest of Khepupara (Bangladesh); it further intensified into an Extremely Severe Cyclonic storm " in the early hours of 18th May, 2020 over central parts of South Bay of Bengal and adjoining Central Bay of Bengal and moving nearly northwards, it lay centred at 0830 hrs IST of 18th May, 2020 over Westcentral and adjoining Central parts of South Bay near latitude 13.3°N and longitude 86.3°E, about 780 km south of Paradip (Odisha), 930 km south-southwest of Digha (West Bengal) and 1050 km south-southwest of Khepupara (Bangladesh); it intensified further into a Super Cyclonic Storm at 1130 IST of 18th May, 2020 and moving nearly northwards, it lay centered at 1730 hrs IST of 18th May, 2020 over Westcentral Bay of Bengal near latitude 14.0°N and longitude 86.3°E, about 700 km nearly south of Paradip (Odisha), 860 km southsouthwest of Digha (West Bengal) and 980 kms southwest of Khepupara (Bangladesh); moving north-northeastwards, it lay centered at 0830 IST of 19th May, 2020 near latitude 16.0°N and longitude 86.8°E over Westcentral Bay of Bengal about 480 km nearly south of Paradip (Odisha), 630 km southsouthwest of Digha (West Bengal) and 750 km southsouthwest of Khepupara (Bangladesh). It moved nearly northtwards, and lay centered at 1430 IST of 19th May, 2020 over Westcentral Bay of Bengal as an Extremely Severe Cyclonic Storm near latitude 17.0°N and longitude 86.9°E , about 360 km nearly south of Paradip (Odisha), 510 km southsouthwest of Digha (West Bengal) and 650 km southsouthwest of Khepupara (Bangladesh). Moving nearly northwards and then north-northeastwards, it lay centered at 0830 hours IST of 20th May, 2020 as an Extremely Severe Cyclonic Storm over Northwest Bay of Bengal near latitude 19.8°N and longitude 87.7°E, about 120 km east-southeast of Paradip (Odisha), 200 km south of Digha (West Bengal) and 360 km southwest of Khepupara (Bangladesh); it moved north-northeastwards and crossed West Bengal – Bangladesh coasts as a Very Severe Cyclonic Storm with a speed of 155-165 kmph gusting to 185 kmph across Sundarbans, near Lat. 21.65°N and longitude 88.3°E and lay centred at 1730 hrs IST of 20th May, 2020, over West Bengal coast near latitude 21.9°N and longitude 88.4°E, about 70 km nearly to the south of Kolkata (West Bengal), 95 km east-northeast of Digha (West Bengal), 35 km northeast of Sagar Islands and 185 km south-southwest of Khepupara (Bangladesh). It moved north-northeastwards further and lay centered at 2330 hrs IST of 20th may 2020 as a Severe Cyclonic Storm over Bangladesh and adjoining West Bengal, near Lat. 23.3°N and Long. 89.0°E about 110 km northeast of Kolkata, 240 km northeast of Digha (West Bengal), 200 km north-northeast of Sagar Islands and 190 km northwest of Khepupara (Bangladesh). ♦ Last week’s Western Disturbance as a trough in mid-tropospheric westerlies with its axis at 5.8 km above mean sea level ran roughly along Longitude 62°E to the north of latitude 25°N on 14th May 2020;it ran roughly along Longitude 63°E to the north of latitude 28°N on 15thand roughly along Longitude 65°E to the north of latitude 30°N on 16th; it ran roughly along Longitude 68°E to the north of latitude 28°N on 17th; it lay as a trough with its axis roughly along Longitude 72°E to the north of latitude 25°N between 5.8 km and 7.6 km above mean sea level on 18th; it ran roughly along Longitude 80°E to the north of latitude 25°N between 5.8 km and 7.6 km above mean sea level on 19th May 2020; it ran roughly along Longitude 82°E to the north of latitude 25°N between 5.8 km and 7.6 km above mean sea level on 20th May 2020.
♦ Last week’s trough/wind discontinuity from southwest Madhya Pradesh to South Interior Karnataka ran from Marathwada to South Interior Karnataka across North Interior Karnataka and extended upto 0.9 km above mean sea level on 14th May 2020; it has become less marked on 15th May 2020. ♦ Last week’s cyclonic circulation over Comorin area & neighbourhood between 1.5 km & 2.1 km above mean sea level has become less marked on 14th May 2020. ♦ Last week’s trough in upper tropospheric westerlies with its axis at 7.6 km above mean sea level roughly along longitude 93°E to the north of latitude 26°N has moved away eastwards on 14th May 2020. ♦ A cyclonic circulation extending upto 1.5 km above mean sea level lay over West Rajasthan & neighbourhood on 14th May 2020; it lay over East Rajasthan & neighbourhood and extended upto 0.9 km above mean sea level on 15th; it has become less marked on 16th May 2020. ♦ A cyclonic circulation extending upto 0.9 km above mean sea level lay over southern parts of Assam & neighbourhood on 14th May 2020; it has become less marked on 15th May 2020. ♦ A cyclonic circulation lay over East Uttar Pradesh & neighbourhood and extended upto 0.9 km above mean sea level on 15th May 2020; it has become less marked on 16th May 2020. ♦An east-west trough ran from the cyclonic circulation over East Uttar Pradesh & neighbourhood to south Assam at 0.9 km above mean sea level on 15th May 2020; it has become less marked on 16th May 2020. ♦ A cyclonic circulation lay over Maldives area & neighbourhood at 1.5 km above mean sea level on 15th May 2020; it has become less marked on 16th May 2020. ♦ A cyclonic circulation between 0.9 & 1.5 km above mean sea level lay over north Pakistan & neighbourhood on 16th May 2020; it lay over East Pakistan and adjoining West Rajasthan at 0.9 km above mean sea level on 17th; it has become less marked on 18th May 2020. ♦ A cyclonic circulation extending upto 0.9 km above mean sea level lay over West Madhya Pradesh & neighbourhood on 16th May 2020; it has become less marked on 17th May 2020. ♦ A cyclonic circulation extending upto 0.9 km above mean sea level lay over east Bangladesh & adjoining Meghalaya on 16th may 2020; it persisted over the same region on 17th & 18th; it has become less marked on 19th May 2020. ♦ A trough ran from south Bihar to the cyclonic circulation over east Bangladesh and adjoining Meghalaya and extended upto 0.9 km above mean sea level on 16th may 2020; it ran from Sub-Himalayan West Bengal to the cyclonic circulation over east Bangladesh & adjoining Meghalaya and extended upto 0.9 km above mean sea level on 17th; it has become less marked on 18th May 2020. ♦ A cyclonic circulation between 3.6 km & 4.5 km above mean sea level lay over Southeast Arabian Sea off Kerala coast on 17th May 2020; it has become less marked on 18th May 2020. ♦ A cyclonic circulation lay over East Vidarbha & neighbourhood and extended upto 0.9 km above mean sea level on 18th May 2020; it has become less marked on 19th May 2020.
RAINFALL SUMMARY
CATEGORY WEEK SEASON
14.05.2020 TO 20.05.2020 01.03.2020 TO 20.05.2020 LARGE EXCESS 6 18
EXCESS 3 3
NORMAL 9 9
DEFICIENT 7 6
LARGE DEFICIENT 10 0
NO RAIN 1 0
Cumulative Rainfall (mm)
Actual Normal % Departure Actual Normal % Departure
12.4 14.1 -12% 123.1 107.1 +15%
• Sub-division wise weekly and seasonal rainfall distribution is presented in Fig-1 and Fig-2.
• Sub-divisionwise daily distribution of realised rainfall is shown in Table-1(A).
• Sub-divisionwise departure of realised maximum temperature from Normal is shown in Table-1(C)
• Statewise distribution of number of districts with Large-Excesse, Excess, Normal, Deficient, Large-deficient and no rainfall is shown in Table-2.
• Cumulative seasonal rainfall data during the corresponding weekly period for the last five years are given in Table-3.
• Sub-divisionwise realised weekly rainfall (in cm) is shown in Annexure-1.
FORECAST & WARNING FOR THE NEXT WEEK 21 MAY TO 27 MAY 2020
➢ Detailed seven days Sub-division wise rainfall-forecast & weather-warning is given in Table-1(B).
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Table-1 (A)
METEOROLOGICAL SUB-DIVISIONWISE DISTRIBUTION OF REALISED RAINFALL-2020
S.No. MET.SUB-DIVISIONS 14 MAY 15 MAY 16 MAY 17 MAY 18 MAY 19 MAY 20 MAY
Station(/s) lies in Met-Subdivision(/s) West MP West MP M.Maharashtra West MP Vidarbha West MP West MP
LEGENDS:
N NORMAL (N+1,N-1)OC BN BELOW NORMAL (N-2)OC ABN APRECIABLY BELOW NORMAL (N-3.1 to -4.9)OC
AN ABOVE NORMAL (N+2)OC MBN MARKEDLY BELOW NORMAL (N-5 AND BELOW ) OC
AAN APRECIABLY ABOVE NORMAL (N+3.1 to +4.9)OC MAN MARKEDLY ABOVE NORMAL (N+5 AND ABOVE ) OC
* Cold wave conditions (Departure from Normal is( -4 OC to -5 OC and -5 OC to -6 OC) ** Severe Cold wave conditions (Departure from Normal is( -6 OC or less and -7 OC or less )
+ Heat wave conditions (Departure from Normal is (+4.5 OC to +6.4 OC) ++
Severe Heat wave conditions (Departure from Normal is (> +6.4 OC)
3
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Table-2
STATEWISE DISTRIBUTION OF NO. OF DISTRICTS
WITH EXCESS, NORMAL,DEFICIENT,SCANTY AND NO RAINFALL
S.
STATES PERIOD FROM : 01.03.2020 TO 20.05.2020
NO. LE E N D LD NR ND TOTAL
1 A & N ISLAND (UT) 0 0 0 3 0 0 0 3
2. ARUNACHAL PRADESH 0 0 4 4 4 0 4 16
3. ASSAM 0 0 5 15 6 0 1 27
4. MEGHALAYA 1 2 0 4 0 0 0 7
5. NAGALAND 0 0 2 6 2 0 1 11
6. MANIPUR 0 0 0 6 2 0 1 9
7. MIZORAM 0 0 0 2 6 0 0 8
8. TRIPURA 0 0 0 4 0 0 0 4
9. SIKKIM 0 1 0 3 0 0 0 4
10. WEST BENGAL 11 1 5 1 0 0 1 19
11. ODISHA 28 1 1 0 0 0 0 30
12. JHARKHAND 24 0 0 0 0 0 0 24
13. BIHAR 36 1 1 0 0 0 0 38
14. UTTAR PRADESH 72 0 2 1 0 0 0 75
15. UTTARAKHAND 8 4 1 0 0 0 0 13
16. HARYANA 21 0 0 0 0 0 0 21
17. CHANDIGARH (UT) 1 0 0 0 0 0 0 1
18. DELHI 5 1 0 0 0 0 3 9
19. PUNJAB 18 2 0 0 0 0 0 20
20. HIMACHAL PRADESH 6 4 0 2 0 0 0 12
21. JAMMU & KASHMIR 2 2 10 2 1 0 5 22
22. RAJASTHAN 27 4 1 1 0 0 0 33
23. MADHYA PRADESH 41 3 3 2 2 0 0 51
24. GUJARAT 7 4 2 9 4 7 0 33
25. DADRA & NAGAR HAVELI (UT) 0 0 0 0 0 1 0 1
26. DAMAN & DIU (UT) 0 0 0 0 0 2 0 2
27. GOA 0 0 0 1 1 0 0 2
28. MAHARASHTRA 15 7 3 3 4 3 1 36
29. CHHATISGARH 25 0 1 1 0 0 0 27
30. ANDHRA PRADESH 0 4 3 6 0 0 0 13
31. TELANGANA 6 6 10 7 2 0 0 31
32. TAMILNADU 1 1 2 16 12 0 0 32
33. PUDUCHERRY (UT) 1 0 1 2 0 0 0 4
34. KARNATAKA 12 10 5 3 0 0 0 30
35. KERALA 2 4 6 2 0 0 0 14
36. LAKSHADWEEP (UT) 0 0 1 0 0 0 0 1
TOTAL 370 62 69 106 46 13 17 683
CATEGORYWISE DISTRIBUTION
OF DISTRICTS OUT OF THE 56% 9% 10% 16% 7% 2%
666 WHOSE DATA RECEIVED
PERCENT DISTRIBUTION OF DISTRICTS IN EARLIER YEARS SINCE 1st MARCH
DATE LE E N D LD NR
22.05.2019 12% 10% 19% 28% 25% 6%
23.05.2018 13% 11% 22% 26% 19% 9%
17.05.2017 5% 11% 22% 24% 26% 12%
18.05.2016 0% 26% 22% 28% 20% 4%
20.05.2015 0% 78% 13% 7% 2% 0%
4
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Table-3
RAINFALL DURING PRE-MONSOON SEASON
S. No.
Meteorological Sub-Divisions
For the period from 1st March to
20 MAY
2015 18 MAY
2016 17 MAY
2017 23 MAY
2018 22 MAY
2019 20 MAY
2020
1. Andaman & Nicobar Islands
A N D
264 296 -11
21 269 -92
277 254 +9
260 336 -22
199 321 -38
195 307 -36
2. Arunachal Pradesh
A N D
513 631 -19
593 608 -2
670 598 +12
389 657 -41
487 647 -25
358 658 -46
3 Assam & Meghalaya
A N D
412 464 -11
578 444 +30
523 434 +20
336 496 -32
498 485 +3
310 465 -33
4. Nagaland, Manipur, Mizo. & Tripura
A N D
300 392 -23
324 373 -13
491 365 +35
418 415 +1
234 409 -43
181 373 -51
5. Sub-Himalayan West Bengal & Sikkim
A N D
388 339 +14
327 321 +2
328 314 +4
329 366 -10
325 357 -9
353 324 +9
6. Gangetic West Bengal
A N D
159 125 +27
77 119 -35
105 117 -10
156 135 +15
207 132 +57
230 144 +60
7. Odisha A N D
106 110 -3
49 107 -54
65 104 -38
147 116 +27
135 114 +18
231 103
+125
8. Jharkhand A N D
96 62
+56
55 59 -7
24 58 -58
68 66 +3
100 64
+55
191 64
+197
9. Bihar A N D
89 55
+63
37 52 -29
77 51
+52
37 61 -39
51 59 -14
155 56
+177
10. East Uttar Pradesh
A N D
80 25
+224
19 24 -23
15 24 -37
30 26
+14
10 26 -63
88 24
+261
11. West Uttar Pradesh
A N D
96 24
+297
19 23 -21
12 23 -50
26 26 +0
17 25 -31
76 24
+213
12. Uttarakhand A N D
219 130 +68
101 126 -20
134 125 +7
128 137 -6
96 135 -29
219 132 +66
13. Haryana, Chandigarh & Delhi
A N D
115 30
+288
26 29 -12
13 29 -55
22 31 -29
34 30
+12
95 31
+206
14. Punjab A N D
115 49
+136
40 48 -16
28 48 -42
25 51 -51
48 50 -3
120 49
+144
5
S. No.
Meteorological Sub-Divisions
For the period from 1st March to
20 MAY
2015 18 MAY
2016 17 MAY
2017 23 MAY
2018 22 MAY
2019 20 MAY
2020
15. Himachal Pradesh
A N D
288 225 +28
211 222 -5
164 219 -25
140 232 -39
129 229 -44
244 221 +10
16. Jammu & Kashmir and Ladakh
A N D
565 302 +87
305 298 +2
264 297 -11
240 312 -23
194 308 -37
313 311 +1
17. West Rajasthan A N D
66 13
+407
9 12 -27
13 12 +4
5 15 -68
30 14
+113
33 15
+112
18. East Rajasthan
A N D
75 12
+541
8 11 -28
7 11 -36
7 13 -47
25 13
+101
36 13
+168
19. West Madhya Pradesh
A N D
69 9
+644
9 9
+4
2 9
-72
4 10 -63
13 10
+36
25 9
+174
20. East Madhya Pradesh
A N D
105 22
+384
25 21
+17
3 21 -88
14 23 -36
24 22
+10
79 20
+289
21. Gujarat Region
A N D
14 3
+389
1 3
-64
0 3
-99
* 3
-94
1 3
-62
4 3
+36
22. Saurashtra, Kutch & Diu
A N D
8 2
+270
1 2
-34
* 2
-97
* 3
-95
* 3
-86
1 2
-55
23. Konkan & Goa
A N D
51 13
+298
4 10 -61
16 9
+87
18 17 +7
1 16 -95
12 11 +6
24. Madhya Maharashtra
A N D
67 23
+189
13 22 -38
13 21 -38
13 26 -50
7 25 -71
33 21
+56
25. Marathawada A N D
83 19
+337
19 18 +6
6 17 -66
12 22 -43
6 21 -71
33 19
+77
26. Vidarbha
A N D
107 26
+317
36 25
+44
9 25 -66
12 27 -56
7 27 -74
42 23
+80
27. Chhattisgarh A N D
71 39
+82
41 38 +9
10 39 -73
47 42
+14
30 41 -27
109 36
+203
28. Coastal Andhra Pradesh & Yaman
A N D
62 77 -19
39 72 -46
38 70 -45
95 84
+13
47 82 -42
79 81 -3
29. Telangana
A N D
107 45
+139
62 42
+47
24 42 -43
63 48
+32
24 47 -50
53 48
+10
6
S. No.
Meteorological Sub-Divisions
For the period from 1st March to
20 MAY
2015 18 MAY
2016 17 MAY
2017 23 MAY
2018 22 MAY
2019 20 MAY
2020
30. Rayalaseema
A N D
108 58
+86
31 55 -44
39 52 -25
80 65
+23
29 62 -54
53 61 -12
31. Tamil Nadu, Puducherry & Karaikal
A N D
226 107
+112
78 102 -24
84 99 -15
126 113 +12
39 111 -65
57 106 -47
32. Coastal Karnataka
A N D
194 94
+105
67 81 -17
63 77 -17
189 114 +66
37 110 -66
154 85
+82
33. North Interior Karnataka
A N D
110 59
+86
50 56 -11
63 54
+16
97 65
+48
34 63 -46
104 57
+83
34. South Interior Karnataka
A N D
204 109 +86
64 103 -38
121 99
+21
179 119 +51
81 116 -30
137 106 +29
35. Kerala & Mahe
A N D
443 271 +63
200 251 -20
232 242 -4
359 298 +20
137 291 -53
309 259 +19
36. Lakshadweep A N D
210 139 +52
23 121 -81
155 117 +32
296 157 +88
27 151 -83
104 113 -8
Country as a whole A N D
163.6 106.7 +53
96.0 102.7
-6
96.4 100.8
-4
97.8 113.0 -13
85.2 110.9 -23
123.1 107.1 +15
SUMMARY
No. of Sub-Divisions with rainfall
For the period from 1st March to
20 MAY 2015
18 MAY 2016
17 MAY 2017
23 MAY 2018
22 MAY 2019
20 MAY 2020
Large Excess Excess Normal Total
- 29 06 35
- 03 14 17
01 05 11 17
02 06 11 19
02 03 07 12
18 03 09 30
Deficient Large Deficient Scanty No rain Total
01 -
00 00 01
15 -
04 00 19
12 07 -
00 19
13 04 -
00 17
14 10 -
00 24
06 00 -
00 06
Data Inadequate 00 00 00 00 00 00
TOTAL 36 36 36 36 36 36
* Data is rounded off to nearest full figure according to Meteorological convention.
SEASONS : WINTER SEASON (January-February) PRE-MONSOON SEASON (March-May)
MONSOON SEASON (June-September) POST-MONSOON SEASON (October-December)
LEGENDS:
Large Excess: (+60% or more) Large Deficient: (-60% to -99%) A : Actual Rainfall (mm)
Excess: (+20% to +59%) Scanty: (-20% to -99%) N : Normal Rainfall (mm)
Normal: (+19% to -19%) No Rain (-100%) D : Departure from normal (%)
Deficient: (-20% to -59%) Data Inadequate: ** Rainfall upto 0.4 mm : *
LEGENDS: CWC Central Water Commission PT/PTO Part Time Observatory
AP Airport FMO Flood Meteorological Office PBO Pilot Balloon Observatory
AWS Automated Weather Station IAF Indian Air Force REV Revenue
ARG Automated Rain Gauge IMD India Meteorological Department SR State Raingauge
CDR Cyclone Detection Radar PWD Public Works Department
20.05.2020
(1) Area Weighted Rainfall (mm) for the country as a whole :
Rainfall
Actual
Normal
% Dep.
(2) Categorywise No. of Subdivisions & % Area of the Country :
L. Excess
Excess
Normal
Deficient
L. DeficientNo Rain
(3) Categorywise comparative distribution of Sub-divisions ( cumulative rainfall ) and All India % Rainfall Departure for last five years since March 1st
Category
L. Excess
Excess
Normal
Deficient
L. Deficient
No Rain
All India
% Dep.
(4) Categorywise comparative % distribution of districts ( cumulative rainfall )
Note: The rainfall figures are rounded off upto one decimal place.
(v)
PERCENT DISTRIBUTION OF DISTRICTS IN EARLIER YEARS SINCE 1st MARCH
OF DISTRICTS OUT OF THE
CATEGORYWISE DISTRIBUTION
DATE22.05.2019
20.05.2015
STATES
STATEWISE DISTRIBUTION OF NO. OF DISTRICTS WITH EXCESS, NORMAL,DEFICIENT,SCANTY AND NO RAINFALL
PERIOD FROM : 01.03.2020 20.05.2020
1
Government of India
Ministry of Earth Sciences
India Meteorological
Department
Dated: 21 May 2020
Current Weather Status and Outlook for next two weeks (21 May-3 June 2020)
Significant Features
● Super Cyclonic Storm"AMPHAN" (pronounced as UM-PUN) formed over Bay of Bengal
and crossed West Bengal – Bangladesh coasts: A Low pressure area has formed over Southeast Bay of Bengal and adjoining south Andaman Sea towards the end of last week. It lay as a Well Marked Low Pressure Area over Southeast Bay of Bengal & neighborhood in the beginning of the week.It concentrated into a Depression Iin the early hours on 16th May and further intensified into a Deep Depression in the afternoon of the same day. It intensified further into a Cyclonic storm "AMPHAN" (pronounced as UM-PUN) by the evening of 16th May, 2020 over Southeast Bay of Bengal and neighbourhood; it further intensified into a Severe Cyclonic Storm in the morning of 17th May, 2020 over Southeast Bay of Bengal and neighbourhood. It underwent rapid intensification during next twenty four hours and accordingly attained the intensity of Very Severe Cyclonic Storm by the afternoon of 17th May, 2020, of Extremely Severe Cyclonic storm " in the early hours of 18th May, 2020 and that of Super Cyclonic Storm in the forenoon of 18th May, 2020.It maintained the same intensity for about a day’s period but weakened slightly and lay as an Extremely Severe Cyclonic Storm over West Central Bay in the afternoon of 19th May 2020.Moving nearly northwards and then north-northeastwards, it crossed West Bengal – Bangladesh coasts as a Very Severe Cyclonic Storm with a wind speed of 155-165 kmph gusting to 185 kmph across Sundarbans, near Lat. 21.65°N and longitude 88.3°E. After crossing, It moved north-northeastwards and weakened into a Severe Cyclonic Storm and lay over Bangladesh and adjoining West Bengal around the midnight on 20th may 2020. Kolkata (Dum Dum) reported 130 kmph at 1855 hrs IST and Kolkata (Alipore) reported 112 kmph at 1752 hrs IST of 20th May in association with the passage of the system. This system in its initial stages has caused fairly widespread to widespread rainfall/thunderstorm activity along with isolated heavy falls over Andaman & Nicobar Islands in the beginning of the week and fairly widespread to widespread rainfall along with very intense rainfall activity over Coastal Odisha and West Bengal towards the end of the week.
● Advance of Southwest Monsoon: The Southwest Monsoon has advanced into some parts of South Bay of Bengal, Nicobar Islands & Andaman Sea on 17th May 2020.The Northern Limit of Monsoon( NLM) passed through Lat.5°N/Long.85°E, Lat.8°N/Long.90°E, Car Nicobar,Lat.11°N/Long.95°E on 17th May 2020 and it continued like that till the end of the week.
● Other Significant Features: i)Strengthening of westerlies along the west coast due to the formation of low pressure system in the Bay of Bengal and wind convergence have caused fairly widespread to widespread rainfall/thunderstorm activity along with isolated intense to very intense rainfall over parts of south peninsular India. ii)Remnants of Western disturbances and east-west troughs in lower levels have caused scattered to fairly widespread rain/thunderstorm activity over northeast and adjoining parts of east India.
2
Heavy rainfall Activities: Heavy to very heavy rainfall with extremely heavy rainfall at isolated
places had been recorded over Odisha on one day during the week. Heavy to very heavy rainfall at isolated places had been recorded at Sub Himalayan West Bengal & Sikkim, Kerala & Mahe and South Interior Karnataka on one day each during the week. .Heavy rainfall had been recorded at isolated places over Sub Himalayan West Bengal & Sikkim on four days; over Assam & Meghalaya and Kerala & Mahe on three days each; over Coastal & North Interior Karnataka on two days each; over Andaman & Nicobar islands, Nagaland, Manipur, Mizoram & Tripura, Gangetic West Bengal, Bihar, Odisha, Chattisgarh, West Madhya Pradesh, Tamil Nadu, Puducherry &Karaikkal, and South Interior Karnataka on one day each during the week.
● Temperature Scenario: The highest maximum temperature of 45.0oC had been recorded at
Khargone (West Madhya Pradesh) on 20th May 2020, over the plains of the country during the
week
LEGEND: Few days-(3 days), Many days-4 to 5 days and Most days-6 to 7 days during
the week.
Weekly Rainfall Scenario (20 May, 2020)
During the week, rainfall was below Long Period Average (LPA) by 12% over the
country as a whole. Details are given below:
Regions
Actual
Rainfall(mm)
Normal
Rainfall(mm)
%Departure from
LPA
Country as a whole 12.4 14.1 -12%
Northwest India 4.0 7.5 -46%
Central India 6.8 4.6 47%
South Peninsula 19.8 18.3 8%
East & northeast India 31.2 41.7 -25%
The Meteorological sub-division-wise rainfall for the week is given in Annexure I.
Seasonal Rainfall Scenario (1 March till 20 May 2020)
For the country as a whole, cumulative rainfall during this year’s pre monsoon season
upto 20 May 2020 was above Long Period Average (LPA) by 15%. Details of the
rainfall distribution over the four broad geographical regions of India are given below:
Regions
Actual
Rainfall(mm)
Normal
Rainfall(mm)
%Departure
from LPA
Country as a whole 123.1 107.1 15%
Northwest India 135.1 101.8 33%
Central India 69.4 29.0 139%
South Peninsula 96.1 92.4 4%
East & northeast India 246.7 300.6 -18%
Cumulative seasonal rainfall is given in Annexure II.
3
Chief synoptic conditions as on 21 May 2020 ♦ The Super Cyclonic Storm ‘AMPHAN’ (pronounced as UM-PUN) moved north-northeastwards
with a speed of 10 kmph during past 06 hours as a Cyclonic Storm and lay centered at 0830 hrs IST of today, the 21st May 2020 over Bangladesh near Lat. 24.7°N and Long. 89.5°E about 270 km north-northeast of Kolkata, 150 km south of Dhubri and 110 km south-southeast of Rangpur (Bangladesh).
♦ A Western Disturbance as a trough roughly along Longitude 82°E to the north of latitude 25°N between 5.8 kmand 7.6 km above mean sea level has merged with the above system. ♦ The Northern Limit of Monsoon (NLM) continues to pass through Lat.5°N/Long.85°E, Lat.8°N/Long.90°E, Car Nicobar, Lat.11°N/Long.95°E. ♦ A fresh Western Disturbance as a trough runs with its axis at 5.8 km above mean sea level roughly along Longitude 62°E to the north of latitude 25°N. ♦ A cyclonic circulation lies over East Uttar Pradesh and extends upto 0.9 km above mean sea level. ♦ Another cyclonic circulation lies over southeast Arabian Sea off Kerala coast between 2.1 km and 5.8 km above mean sea level.
Large scale features as on 21 May 2020
o The Madden Julian Oscillation (MJO) index is currently in phase 5 with amplitude greater than 1. It will
quickly move to phase 7 in the first week with amplitude greater than 1. MJO will move to phase 8 in the
first half of the 2nd week and will be in Phase 1 by the end of second week with amplitude greater than 1.
Thus MJO will not support enhancement of convective activity over the Bay of Bengal (BoB) during
next 2 weeks
o Currently, ENSO-neutral conditions are prevailing over equatorial Pacific Ocean and the latest
MMCFS forecast indicates these conditions are likely to continue for the entire forecast period.
o At present, near neutral IOD conditions are observed over Indian Ocean and the latest MMCFS
forecast indicates same IOD conditions are likely to continue during the entire forecast period.
Forecast for next two week
Week 1: (21-27 May 2020)
o Mainly dry weather likely to prevail over most parts of India except Western Himalayan Region,
northeastern and southwester parts of India and Andaman and Nicober Islands. Under the
influence of present depression which will further weaken to a low pressure area by next 12-
hours and likely to move across northeastern states during next 24-hour as a weak system,
heavy to very heavy rainfall with extremely heavy falls very likely at isolated places over
northeastern states of India; heavy to very heavy rainfall at isolated places over Arunachal
Pradesh; and heavy rainfall at isolated places over Sub-Himalayan West Bengal & Sikkim and
Nagaland, Manipur, Mizoram & Tripura.s during next 24 hours. Squally wind (speed reaching
50-60 kmph gusting to 70 kmph) very likely over West Assam & Meghalaya till today evening
and gradual reduction thereafter. But scattered to fairly widespread rainfall /thunderstorms
likely to continue over these areas during remaining days of week-1
o Under the influence of feeble Western Disturbance at mid-tropospheric levels isolated to
scattered rain/thundershower very likely over Western Himalayan Region during 23-25 May,
4
2020.
Cumulatively Rainfall for week 1, Excess rainfall very likely mainly over northeastern states
and across southwestern parts of peninsular India during week 1 (Ref Annexure III for day today
and Annexure IV for cumulative for Week 1 from IMD GFS-CFS Model ensembles and
Annexures VI IMD maps with areas of excess rainfall anomalies).
Week 2: (28 May-3 June 2020)
Cumulatively rainfall during week 2, Excess rainfall likely across over Andaman and Nicober
areas and peninsular India, eastern parts and Northeastern States and peninsular India with
mainly dry weather likely over rest parts of the country (Annexure IV).
For information, on areas of Indian region likely to experience excess rainfall, during
next 2 weeks, refer new IMD ERF maps of Experimental extreme Temperature and
Excess Precipitation Outlook in graphical composite map form at Annexure VI
Maximum Temperature for week 1 & 2: (21 May-3 June, 2020)
During week 1, Heat wave very likely to occur over Rajasthan during 21st-25th May, West
Madhya Pradesh, Vidarbha and Telangana during 21st-24th May; over Coastal Andhra Pradesh
& Yanam, North Interior Karnataka and Tamilnadu, Puducherry & Karaikal during 21st-23rd
May, over East Madhya Pradesh and Rayalseema during 22nd-24th May, over Uttar Pradesh
during 22nd-25th May, 2020.
Average Maximum temperatures of Week 1 are likely to be above normal by 4°C or more over
Rajasthan, central and southeastern part of India. (Annex. VI.).
During week 2, maximum temperatures are likely to be 2°C above normal over central parts of
India (Annexure VI).
For information, on areas of Indian region likely to experience extreme temperature
during next 2 weeks, refer new Experimental Extreme Temperature at Annexure VI.
Cyclogenesis: No cyclogenesis is expected over north Indian ocean during weeks 1 and 2.
Next weekly update will be issued on next Thursday i.e. 28 May 2020
The total live storage in 123 important reservoirs in different parts of the country, monitored by CWC on weekending 21.05.2020 was 60.734 Billion Cubic Meter (BCM) ( 35 percent of the storagecapacity at Full Reservoirs Level (FRL) against 36.154 (BCM) ( 21 percent of the storage capacityat FRL) during corresponding date of pervious year and 37.579 (BCM)( 22 percent of the storage capacity at FRL) which is the average storage of the last 10 years. The storage was more than the lastyear's position by 24.580 BCM and more than the average of last ten years storage position by
23.155 BCM.
The current year's storage is nearly 168 percent of the last year's storage and 162percent of the average of last ten years. There are 109 reservoirs having storage more than 80percent, 8 reservoirs having storage 51% to 80%, 0 reservoirs having storage 31% to 50%. The reservoirs reporting storage upto 30% of normal storage is 6
Out of 123 reservoirs 4 nos. having no live storage as on 21.05.2020 and there were 12reservoirs reporting no live storage on the corresponding period of last year.
Government of India Central Water Commission
Water Management Directorate
RESERVOIRS STORAGE STATUS
CROP WEATHER WATCH GROUP 21.05.2020
3
CURRENT STATUS OF HYDROLOGIC CONDITION IN INDIARESERVOIRS STOTAGE STATUS
The total live storage in 123 important reservoirs in different parts of the country, monitored byCWC on week ending 21.05.2020 is 60.734 Billion Cubic Meter (BCM). It is more than the average of last 10 yeras storage by 23.155 BCM and more than the last year's storage by24.58 BCM.
SL. No. Description As on 21.05.2020 As on 14.05.2020Current Last Average Current Last Average
Year Year of last 10 Year Year of last 10Years Years
Total Live1 Storage 60.734 36.154 37.579 64.600 38.508 39.217
(BCM)
A comparison of details of storage position on 21.05.2020 is given below Status of 123 reservoirs 21.05.2020
Sl. No. Description of 9921.05.2020 14.05.2020 21.05.2019 Reservoirs
with Irrigation1 Storage as % of live capacity 35 38 21 38
at FRL (%) (%) (%) (%)2 Storage as % of last year's 168 168 111 176
storage (%) (%) (%) (%)3 Storage as % of 162 165 103 160
Normal storage (%) (%) (%) (%)4 Reservoirs having storage more than 80% of 109 112 64 88
Normal storage (Nos.) (Nos.) (Nos.) (Nos.)5 Reservoirs having storage more than 50% & 8 7 24 7
upto 80% of Normal storage (Nos.) (Nos.) (Nos.) (Nos.)6 Reservoirs having storage more than 30% & 0 1 13 0
upto 50% of Normal storage (Nos.) (Nos.) Nos (Nos.)7 Reservoirs having storage upto 30% 6 3 11 4
of Normal* storage (Nos.) (Nos.) (Nos.) (Nos)Nos. of reservoirs having no live storage (i.e. water level 4 2 11 3< MDDL) out of 123 reservoirs (Nos.) (Nos.) (Nos) (Nos.)
STATUS AS ON 21.05.2016 21.05.2017 21.05.2018 21.05.2019 21.05.2020(123 Resv.) (123 Resv.) (123 Resv.) (123 Resv.) (123 Resv.)
TOTAL LIVE STORAGE(BCM) 29.808 38.530 32.769 36.154 60.734
PERCENTAGE TO LIVE 17 23 19 21 35CAPACITY AT FRL (%) (%) (%) (%) (%)
Total live storage at FRL (in BCM.) 171.09Total live storage this season (in BCM.) 60.73Total live storage last season (in BCM) 36.15 Avg. live storage of last 10 years (in BCM) 37.58This season's live storage as % of FRL capacity 35This season's live storage as % of last season's 168This season's live storage as % of avg. of last 10 years 162
TOTAL
As % of FRL capacity 21.05.2019
Average of Last 10 Years
14.05.2020
Total No. of projects
THIS WEEK LAST WEEK
Current Year's
position
Last Year's storage position
Average of Last 10
Years position
more than
80% of design
Storage
more than 50% and upto 80% of design storage
more than 30% and upto 50% of design storage
upto 30% of design storage
Average of Last 10 Years
As % of FRL
capacity14.05.2019
CENTRAL WATER COMMISSIONWATER MANAGEMENT DIRECTORATE
WEEKLY STORAGE STATUS : "STATEWISE " WEEK ENDING
S. NO. STATE
TOTAL LIVE CAPACITY AT FRL IN BCM.
LIVE STORAGE IN BCM Departure w.r.t. Storage of last week in Projects having storage
10 MAHANADI & NEIGHBOURING E.F.R (Pennin. India) M. Bango Mahanadi Hirakud Salanadi Rengali Sapua Dudhawa Tandula Hariharjhor11 CAUVERY & NEIGHBOURING E.F.R.(Pennin. India) Somasila K. R Sagra Kabini Hemavathy Harangi L. Bhawani Mettur Vaigai12 WEST FLOWING RIVERS OF SOUTH(Pennin. India) Damanganga Linganamakki Supa Kallada Idamalayar Idukki U. Vaiterna Parambikulam Aliyar Sholayar Kakki Periyar Gerusoppa
Malampuzha Bhatsa Tattihalla Mani Dam Surya Tillari
(BCM) (BCM) (BCM)North India 21.912 43% 15.735 31% 14.014 27%Penninsular India 38.822 32% 20.419 17% 23.565 20%
KRISHNA (Pennin. India)9
51.243
As % of FRL
Capacity
Live Storage As % of FRL
Capacity
Average
Region
119.848
Live Storage As % of FRL
Capacity
Live Storage
Total Live Capacity at FRL
(BCM)
This year Last Year
CENTRAL WATER COMMISSION WATER MANAGEMENT DIRECTORATE
WEEKLY STORAGE STATUS : "BASINWISE "WEEK ENDING
S. NO. BASIN (REGION)
14.05.2019
LAST WEEK TOTAL LIVE CAPACITY AT FRL IN
BCM.Average of
Last 10 Years
LIVE STORAGE IN BCM
Current Year's
position
Last Year's storage position
Average of Last 10 Years position14.05.2020
GODAVARI (Pennin. India)
Departure w.r.t. Storage of last week in
THIS WEEK
As % of FRL capacity21.05.2020
As % of FRL
capacity21.05.2019
Average of Last 10 Years
TOTAL
RESERVOIRS
1 GANGA (North India)
6
21.05.2020
TATTIHALLA KAR TATTIHALLA KAR SINGUR TG SINGUR TG BHIMA(UJJANI) MAH BHIMA(UJJANI) MAH ALIYAR TN DANTIWADA GUJ GUMTI TRP NIZAM SAGAR TG TUNGABHADRA KAR MATATILA UP KHADAKVASLA MAH SHOLAYAR TN MULSHI MAH PERIYAR KRL
TANDULA CHH KADANA GUJ MALAMPUZHA KRL KOL DAM HP UPPER VAITARNA MAH RENGALI ORI GOBIND SAGAR(BHAKRA) HP
DOYANG HEP NAG SURYA MAH PARAMBIKULAM TN MANI DAM KAR GERUSOPPA KAR KAKKI KRL OMKARESHWAR MP OMKARESHWAR MPMACHKUND(JALAPUT) ORI BALIMELA ORI KONAR JHA THEIN DAM PUN TAWA MP
PANAM GUJ KANHER MAH
KARJAN GUJ IDAMALAYAR KRL BHADRA KAR BHATSA MAH
TILLARI MAH DAMANGANGA GUJ SRISAILAM AP/TG VAIGAI TN KALLADA(PARAPPAR) KRL
SUPA KAR UPPER KOLAB ORI VANI VILAS SAGAR KAR DUDHGANGA MAH SHETRUNJI GUJ
URMODI MAH THOKARWADI MAH NARAYANPUR KAR MAHI BAJAJ SAGAR RAJ JHAKAM RAJ DHOM MAH KOYANA MAH UPPER TAPI MAH TENUGHAT JHA BARGI MP MINIMATA BANGO CHH RANA PRATAP SAGAR RAJ UPPER INDRAVATI ORI
RIHAND UP BANSAGAR MP
TILAIYA JHA HIRAKUD ORI MACHCHHU-I GUJ PANCHET HILL JHA
LINGANAMAKKI KAR MAYURAKSHI WB UPPER WARDHA MAH YELERU AP NAGARJUNA SAGAR AP/TG IDUKKI KRL SARDAR SAROVAR GUJ SHARDA SAGAR UP
LOWER MANAIR TG MAHANADI CHH
SOMASILA AP JIRGO UP SALANADI ORI KANGSABATI WB MULA MAH MANIKDOH MAH RAMGANGA UKH PONG DAM(BEAS) HP ISAPUR MAH SAPUA ORI INDIRA SAGAR MP UKAI GUJ ALMATTI KAR BISALPUR RAJ GANDHI SAGAR MP BHANDARDARA MAH SABARMATI(DHAROI) GUJ KOLAR DAM MP BHADAR GUJ METTUR(STANLEY) TN
Week ending
Projects having more than 80% of Normal storage
Projects having more than 50% & upto 80% of Normal storage.
Projects having more than 30% & upto 50% of Normal storage.
Projects having storage upto 30% of Normal storage.
Storage status of 123 reservoirs as compare to normal storage
Reservoir having no live storage out of 123 reservoirs
7
DUDHAWA CHH HARANGI KAR
KRISHNARAJA SAGARA KAR KABINI KAR GIRNA MAH WATRAK GUJ
UND-I GUJ BARNA DAM MP
GHATAPRABHA(HIDKAL) KAR HARIHARJHOR ORI
SRIRAMSAGAR TG
LOWER BHAWANI TN NIRA DEOGHAR MAH MAITHON JHA PENCH(TOTLADOH) MAH BHATGHAR MAH TEHRI UKH HATHMATI GUJ JAYAKWADI(PAITHAN) MAH MALAPRABHA(RENUKA) KAR HEMAVATHY KAR SANJAY SAROVAR MP MACHCHHU-II GUJ YELDARI MAH BRAHMANI(GUJ) GUJ SUKHI(GUJ) GUJ
TOTAL FOR 123 RESERVOIRS 21460.9 18604.04 171.091 60.734 36.154 37.579PERCENTAGE 35 21 22 168 162
* HYDEL POWER CAPACITY HAVING CAPACITY MORE THAN 60MW$ TOTAL CCA 342 TH. HA OF DVC SYSTEM# TOTAL CCA 101 TH. HA OF PARAMBIKULAM & ALIYAR@' TOTAL CCA 425 TH. HA. OF NARAYANPUR AND ALMATTI† SABARMATI RESERVOIR IS SUPPLEMENTED WITH NARMADA WATER THROUGH PIPELINE.
BRIEF NOTE ON LIVE STORAGE STATUS OF 123 RESERVOIRS IN THE COUNTRY (WITH REFERENCE TO RESERVOIR STORAGE BULLETIN OF 21.05.2020) 1. ALL INDIA STATUS
Central Water Commission is monitoring live storage status of 123 reservoirs of the country on weekly basis and is issuing weekly bulletin on every Thursday. Out of these reservoirs, 43 reservoirs have hydropower benefit with installed capacity of more than 60 MW. The total live storage capacity of these 123 reservoirs is 171.090 BCM which is about 66.36% of the live storage capacity of 257.812 BCM which is estimated to have been created in the country. As per reservoir storage bulletin dated 21.05.2020, live storage available in these reservoirs is 60.73 BCM, which is 35% of total live storage capacity of these reservoirs. However, last year the live storage available in these reservoirs for the corresponding period was 36.15 BCM and the average of last 10 years live storage was 37.58 BCM. Thus, the live storage available in 123 reservoirs as per 21.05.2020 Bulletin is 168% of the live storage of corresponding period of last year and 162% of storage of average of last ten years.
As per Table-01, the overall storage position is better than the corresponding period of last year in the country as a whole and is also better thanthe average storage of last ten years during the corresponding period.
2. REGION WISE STORAGE STATUS: a) NORTHERN REGION
The northern region includes States of Himachal Pradesh, Punjab and Rajasthan. There are 8 reservoirs under CWC monitoring having total live storage capacity of 19.17 BCM. As per Reservoir Storage Bulletin dated 21.05.2020, the total live storage available in these reservoirs is 7.72 BCM which is 40%of total live storage capacity of these reservoirs. The storage during corresponding period of last year was 43% and average storage of last ten years during corresponding period was 29% of live storage capacity of these reservoirs. Thus, storage during current year is less than the corresponding period of last year and it is better than the average storage of last ten years during the corresponding period.
b) EASTERN REGION The Eastern region includes States of Jharkhand, Odisha, West Bengal, Tripuraand Nagaland. There are 18 reservoirs under CWC monitoring having total live storage capacity of 19.43 BCM. As per Reservoir Storage Bulletin dated 21.05.2020, the total live storage available in these reservoirs is 6.96 BCM which is 36% of total live storage capacity of these reservoirs. The storage during corresponding period of last year was 25% and average storage of last ten years during corresponding period was 27% of live storage capacity of these reservoirs. Thus, storage during current year is better than the corresponding period of last year and is also better than the average storage of last ten years during the corresponding period.
c) WESTERN REGION The Western region includes States of Gujarat and Maharashtra. There are 42 reservoirs under CWC monitoring having total live storage capacity of 35.24 BCM. As per Reservoir Storage Bulletin dated 21.05.2020, the total live storage available in these reservoirs is 12.92 BCM which is 37% of total live storage capacity of these reservoirs. The storage during corresponding period of last year was 13% and average storage of last ten years during corresponding period was 21% of live storage capacity of these reservoirs. Thus, storage during current year is better than the storage of last year and is also better than the average storage of last ten years during the corresponding period.
1
d) CENTRAL REGION The Central region includes States of Uttar Pradesh, Uttarakhand, Madhya Pradesh and Chhattisgarh. There are 19 reservoirs under CWC monitoring having total live storage capacity of 44.45BCM. As per Reservoir Storage Bulletin dated 21.05.2020, the total live storage available in these reservoirs is 19.16 BCM which is 43% of total live storage capacity of these reservoirs. The storage during corresponding period of last year was 26% and average storage of last ten years during corresponding period was 25% of live storage capacity of these reservoirs. Thus, storage during current year is better thanthe storage of last year and is also better than the average storage of last ten years during the corresponding period.
e) SOUTHERN REGION The Southern region includes States of Andhra Pradesh, Telangana, AP&TG (2combined projects in both states), Karnataka, Kerala and Tamil Nadu.There are 36reservoirs under CWC monitoring having total live storage capacity of 52.81 BCM. As per Reservoir Storage Bulletin dated 21.05.2020, the total live storage available in these reservoirs is 13.97 BCM which is 26% of total live storage capacity of these reservoirs. The storage during corresponding period of last year was 13% and average storage of last ten years during corresponding period was 16% of live storage capacity of these reservoirs. Thus, storage during current year is better thanthe corresponding period of last year and is alsobetter than the average storage of last ten years during the corresponding period. The region wise and reservoir wise details are given in the following pages of the Bulletin. BROAD ANALYSIS OF OTHER TABLES IN THE BULLETIN
Normal storage means average storage of last ten years, Close to normal storage means where shortfall is upto 20% of normal, deficient storage is where shortfall is more than 20% of the normal and upto 60% of the normal, highly deficient means where shortfall is more than 60% of normal.
In the table on page 11, better than normal storage is available in Ganga, Indus, Narmada, Tapi, Mahi,Sabarmati, Rivers of Kutch, Godavari, Krishna,Mahanadi & Neighbouring East Flowing Rivers,Cauvery & neighbouring EFRs and West Flowing Rivers of South. NIL in Close to Normal, Deficientand in Highly Deficient.
Table on page 12-14 of the bulletin. The numbers of reservoirs having storage more than last year are 94 and reservoirs having storage more than average of last ten years are 95. The numbers of reservoirs having storage less than or equal to 20% with respect to last year is 13 and having storage less than or equal to 20% with reference to average of last ten years is 5. The number of reservoirs having storage less than or equal to 50% with respect to last year are 16 and having storage less than or equal to 50% with reference to average of last ten years are 6. States having better storage (in %) than last year for corresponding period: Rajasthan, Jharkhand, Odisha, West Bengal, Gujarat, Maharashtra, Uttar Pradesh, Uttarakhand, Madhya Pradesh, Chhattisgarh, AP&TG (Two combined projects in both states), Andhra Pradesh, Telangana, Karnataka, Kerala and Tamil Nadu. States having equal storage (in %) to last year for corresponding period: Nil States having lesser storage (in %) than last year for corresponding period: Himachal Pradesh, Punjab and Tripura, Nagaland.
Disclaimer: The Data contained in this Bulletin is as received from the State Government/Project Authorities.