Special Daily Weather Report 17 September, 2017 Monsoon Watch Southwest monsoon has been vigorous over Saurashtra & Kutch, Coastal Karnataka and Kerala and active over Andaman & Nicobar Islands, West Madhya Pradesh, Madhya Maharashtra, Coastal Andhra Pradesh, Rayalaseema, Tamilnadu & Puducherry and interior Karnataka during past 24 hours. Extremely heavy rainfall occurred at isolated places over Kerala. Very heavy rainfall occurred at isolated places over Odisha. Heavy to very heavy rainfall occurred at isolated places over Coastal Andhra Pradesh and Coastal Karnataka and at a few places over Kerala. Heavy rainfall occurred at isolated places over Andaman & Nicobar Islands, Nagaland, Manipur, Mizoram & Tripura, Gujarat State, Konkan & Goa, Madhya Maharashtra, Chhattisgarh, Telangana, Rayalaseema and interior Karnataka from 0830 hours IST of yesterday to 0830 hours IST of today. Thunderstorm occurred at a few places over Saurashtra & Kutch, Tamilnadu and Coastal Andhra Pradesh; at isolated places over East Madhya Pradesh, Konkan & Goa, Odisha, Chhattisgarh, Gujarat region, Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, Madhya Maharashtra, Telangana, North Interior Karnataka and Kerala from 0830 hours IST of yesterday to 0830 hours IST of today. Spatial rainfall distribution and monsoon activity is enclosed. (Table-1) Latest Satellite Image of INSAT 3-D is enclosed. (Fig-1) Seasonal Rainfall (in mm) upto 16 September 2017 Region Actual Normal % Departure from Long Period Average All India 768.3 819.7 -6% East & Northeast India 1281.0 1314.9 -3% Northwest India 523.3 580.9 -10% Central India 833.1 913.1 -9% South Peninsula 624.9 631.5 -1% Weather Forecast (valid upto 1430 hours IST of 22 September, 2017) No significant change in maximum and minimum temperatures over most parts of the country during next 2-3 days. Meteorological Sub-division wise 5-day rainfall forecast and outlook for subsequent 5 days is enclosed. (Table-2A ) & (Table-2B) Sub-division wise rainfall recorded from 0830 IST of yesterday to 0830 IST of today is enclosed. (Annexure-1) Warning (Fig-2) 17 September (Day 1):♦ Heavy to very heavy rain at isolated places very likely over Coastal Karnataka and Andaman & Nicobar Islands; Heavy at isolated places over Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, Gangetic West Bengal, Saurashtra & Kutch, Konkan & Goa, Madhya Maharashtra, Marathawada, Coastal Andhra Pradesh, North & South Interior Karnataka, Tamilnadu & Puducherry, Kerala and Lakshadweep. ♦ Thunderstorm very likely at isolated places over Uttar Pradesh, south Rajasthan, Madhya Pradesh, Vidarbha, Chhattisgarh and Telangana. 18 September (day 2):♦ Heavy to very heavy rain with extremely heavy falls at isolated places very likely over Konkan & Goa; heavy at isolated places over Odisha, Gangetic West Bengal, Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, Madhya Maharashtra, Coastal Karnataka, South Interior Karnataka and Kerala. 19 September (Day 3):♦ Heavy to very heavy rain at a few places over with extremely heavy falls at isolated places very likely over Konkan & Goa; heavy at isolated places over Odisha, Assam & Meghalaya, Madhya Maharashtra, Coastal Karnataka and Kerala. 20 September (Day 4):♦ Heavy to very heavy rain with extremely heavy falls at isolated places very likely over Konkan & Goa; heavy at isolated places over Sub-Himalayan West Bengal & Sikkim, Madhya Maharashtra, Coastal Karnataka and Andaman & Nicobar islands. 21 September (Day 5):♦ Heavy rain at isolated places very likely over Sub-Himalayan West Bengal & Sikkim and Andaman & Nicobar islands. Weather Outlook for subsequent 2 days (from 1430 IST of 22 September to 1430 IST of 24 September, 2017) Rain at most places very likely over Andaman & Nicobar Islands and along West Coast. Rain at a many places very likely over central and east India. Isolated to scattered rain very likely over rest of the country. Legend: Probability of occurrence Terminology Probability of occurrence Terminology Less than 25% unlikely 51-75% Very likely 25-50% likely Above 75% Most likely Heavy Rainfall (64.5-115.5 mm) Very Heavy (115.6-204.4 mm) Extremely Heavy (204.5 mm or more) Note: Next report will be issued at 1800 hours IST of 18 September, 2017.
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Special Daily Weather Report 17 September, 2017
Monsoon Watch
Southwest monsoon has been vigorous over Saurashtra & Kutch, Coastal Karnataka and Kerala and active over Andaman & Nicobar Islands, West Madhya Pradesh, Madhya Maharashtra, Coastal Andhra Pradesh, Rayalaseema, Tamilnadu & Puducherry and interior Karnataka during past 24 hours.
Extremely heavy rainfall occurred at isolated places over Kerala. Very heavy rainfall occurred at isolated places over Odisha. Heavy to very heavy rainfall occurred at isolated places over Coastal Andhra Pradesh and Coastal Karnataka and at a few places over Kerala. Heavy rainfall occurred at isolated places over Andaman & Nicobar Islands, Nagaland, Manipur, Mizoram & Tripura, Gujarat State, Konkan & Goa, Madhya Maharashtra, Chhattisgarh, Telangana, Rayalaseema and interior Karnataka from 0830 hours IST of yesterday to 0830 hours IST of today.
Thunderstorm occurred at a few places over Saurashtra & Kutch, Tamilnadu and Coastal Andhra Pradesh; at isolated places over East Madhya Pradesh, Konkan & Goa, Odisha, Chhattisgarh, Gujarat region, Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, Madhya Maharashtra, Telangana, North Interior Karnataka and Kerala from 0830 hours IST of yesterday to 0830 hours IST of today.
Spatial rainfall distribution and monsoon activity is enclosed. (Table-1)
Latest Satellite Image of INSAT 3-D is enclosed. (Fig-1)
Seasonal Rainfall (in mm) upto 16 September 2017
Region Actual Normal % Departure from Long Period Average
All India 768.3 819.7 -6%
East & Northeast India 1281.0 1314.9 -3%
Northwest India 523.3 580.9 -10%
Central India 833.1 913.1 -9%
South Peninsula 624.9 631.5 -1%
Weather Forecast (valid upto 1430 hours IST of 22 September, 2017) No significant change in maximum and minimum temperatures over most parts of the country during next 2-3 days. Meteorological Subdivision wise 5-day rainfall forecast and outlook for subsequent 5 days is enclosed. (Table-2A ) & (Table-2B) Subdivision wise rainfall recorded from 0830 IST of yesterday to 0830 IST of today is enclosed. (Annexure-1)
Warning (Fig-2)
17 September (Day 1):♦ Heavy to very heavy rain at isolated places very likely over Coastal Karnataka and Andaman & Nicobar Islands; Heavy at isolated places over Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, Gangetic West Bengal, Saurashtra & Kutch, Konkan & Goa, Madhya Maharashtra, Marathawada, Coastal Andhra Pradesh, North & South Interior Karnataka, Tamilnadu & Puducherry, Kerala and Lakshadweep. ♦ Thunderstorm very likely at isolated places over Uttar Pradesh, south Rajasthan, Madhya Pradesh, Vidarbha, Chhattisgarh and Telangana. 18 September (day 2):♦ Heavy to very heavy rain with extremely heavy falls at isolated places very likely over Konkan & Goa; heavy at isolated places over Odisha, Gangetic West Bengal, Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, Madhya Maharashtra, Coastal Karnataka, South Interior Karnataka and Kerala. 19 September (Day 3):♦ Heavy to very heavy rain at a few places over with extremely heavy falls at isolated places very likely over Konkan & Goa; heavy at isolated places over Odisha, Assam & Meghalaya, Madhya Maharashtra, Coastal Karnataka and Kerala. 20 September (Day 4):♦ Heavy to very heavy rain with extremely heavy falls at isolated places very likely over Konkan & Goa; heavy at isolated places over Sub-Himalayan West Bengal & Sikkim, Madhya Maharashtra, Coastal Karnataka and Andaman & Nicobar islands. 21 September (Day 5):♦ Heavy rain at isolated places very likely over Sub-Himalayan West Bengal & Sikkim and Andaman & Nicobar islands.
Weather Outlook for subsequent 2 days (from 1430 IST of 22 September to 1430 IST of 24 September, 2017)
Rain at most places very likely over Andaman & Nicobar Islands and along West Coast.
Rain at a many places very likely over central and east India.
Isolated to scattered rain very likely over rest of the country.
Legend:
Probability of occurrence Terminology Probability of occurrence Terminology
Less than 25% unlikely 51-75% Very likely
25-50% likely Above 75% Most likely Heavy Rainfall (64.5-115.5 mm) Very Heavy (115.6-204.4 mm) Extremely Heavy (204.5 mm or more)
Note: Next report will be issued at 1800 hours IST of 18 September, 2017.
Table-1
LEGENDS:
WS WIDE SPREAD / MOST PLACES (76-100%) FWS FAIRLY WIDE SPREAD / MANY PLACES (51% to 75%)
SCT SCATTERED / FEW PLACES (26% to 50%) ISOL ISOLATED (up to 25%) DRY NO RAINFALL
ACTIVE (R/F 11/
2- 4 times the normal with WS/FWS, at least 2 stations should be 5 cm. along west coast & 3 cm. elsewhere )
VIGOROUS (R/F More than 4 times the normal with WS/FWS, at least 2 stations should be 8 cm. along west coast & 5 cm. elsewhere)
S.NO. MET. SUB-DIVISIONS RAINFALL
DISTRIBUTION MONSOON ACTIVITY
1 ANDAMAN & NICOBAR ISLANDS WS ACTIVE
2 ARUNACHAL PRADESH ISOL
3 ASSAM & MEGHALAYA ISOL
4 NAGA.MANI.MIZO.&TRIPURA FWS NORMAL
5 SUB-HIMALAYAN W.BENG.& SIKKIM ISOL
6 GANGETIC WEST BENGAL ISOL
7 ODISHA ISOL NORMAL
8 JHARKHAND ISOL
9 BIHAR DRY
10 EAST UTTAR PRADESH ISOL
11 WEST UTTAR PRADESH ISOL
12 UTTARAKHAND ISOL
13 HARYANA, CHANDIGARH & DELHI ISOL
14 PUNJAB DRY
15 HIMACHAL PRADESH ISOL
16 JAMMU & KASHMIR DRY
17 WEST RAJASTHAN ISOL
18 EAST RAJASTHAN SCT NORMAL
19 WEST MADHYA PRADESH FWS ACTIVE
20 EAST MADHYA PRADESH SCT NORMAL
21 GUJARAT REGION. D.D.& N. HAVELI SCT NORMAL
22 SAURASHTRA KUTCH & DIU FWS VIGOROUS
23 KONKAN & GOA WS NORMAL
24 MADHYA MAHARASHTRA FWS ACTIVE
25 MARATHAWADA SCT NORMAL
26 VIDARBHA ISOL
27 CHHATTISGARH ISOL
28 COASTAL ANDHRA PRADESH FWS ACTIVE
29 TELANGANA SCT NORMAL
30 RAYALASEEMA WS ACTIVE
31 TAMILNADU & PUDUCHERRY FWS ACTIVE
32 COASTAL KARNATAKA WS VIGOROUS
33 NORTH INTERIOR KARNATAKA WS ACTIVE
34 SOUTH INTERIOR KARNATAKA WS ACTIVE
35 KERALA WS VIGOROUS
36 LAKSHADWEEP WS
RAINFALL DISTRIBUTION & MONSOON ACTIVITY 17 SEPT. 2017
Fig-1
Latest Satellite Image of INSAT 3-D 17 SEPT. 2017
Table-2A
5-Day Rainfall Forecast 2017 Forecast and Warning for any day is valid IST of next day from 0830 hours IST of day till 0830 hours of the next day
WS Wide spread / most places (76-100%) FWS Fairly wide spread / many places (51% to 75%)
SCT Scattered / few places (26% to 50%) ISOL Isolated (up to 25%)
DRY No station reported rainfall ● Heavy rainfall (64.5-115.5 mm)
●● very heavy rainfall (115.6-204.4 mm)
●●● Extremely heavy rainfall (204.5 mm or more)
OUTLOOK FOR SUBSEQUENT 5 DAYS 2017 Forecast and Warning for any day is valid IST of next day from 0830 hours IST of day till 0830 hours of the next day
Fig-2
Warning
Annexure-1
Significant amounts of rainfall (in cm) (From 0830 hours IST of yesterday to 0830 hours IST of today)