Special Daily Weather Report 05 September, 2017 Monsoon Watch Southwest monsoon has been Vigorous over South Interior Karnataka and Active over Arunachal Pradesh and Rayalaseema during past 24 hours. Heavy to very heavy rain with extremely falls occurred at isolated places over Tamilnadu & Puducherry; Heavy to very heavy at isolated places over Sub-Himalayan West Bengal & Sikkim; Heavy rain at isolated places over Assam & Meghalaya, Telangana, Rayalaseema, and Interior Karnataka from 0830 hours IST of yesterday to 0830 hours IST of today. Thunderstorm occurred at isolated places over Punjab, West Rajasthan, Odisha, Nagaland, Manipur, Mizoram & Tripura, Assam & Meghalaya, West Bengal & Sikkim, Coastal Andhra Pradesh, Interior Karnataka, Rayalaseema, Kerala and Tamilnadu 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 04 September 2017 Region Actual Normal % Departure from Long Period Average All India 712.9 742.5 -4% East & Northeast India 1188.2 1182.7 0% Northwest India 508.9 524.0 -3% Central India 774.1 828.8 -7% South Peninsula 541.5 578.0 -6% Weather Forecast (valid upto 1430 hours IST of 10 September, 2017) No significant change in maximum and minimum temperatures very likely over the country during next 2-3 days. Thunderstorm very likely at isolated places over Coastal Andhra Pradesh, Telangana and Rayalaseema during next 48 hours and over Jammu division, east Vidarbha and North Interior Karnataka during next 24 hour. 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) 05 September (Day 1):♦ Heavy rain very likely at isolated places over Sub-Himalayan West Bengal & Sikkim, Arunachal Pradesh, Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, South Interior Karnataka, Rayalaseema, Kerala and Tamilnadu & Puducherry. ♦ Thunderstorm accompanied with gusty winds & lighting at isolated places very likely over Odisha and with gusty winds over Coastal Andhra Pradesh, Telangana and Rayalaseema. 06 September (Day 2):♦ Heavy rain very likely at isolated places over South Interior Karnataka and Tamilnadu & Puducherry. ♦ Thunderstorm accompanied with gusty winds at isolated places very likely over West Madhya Pradesh, Coastal Andhra Pradesh, Telangana and Rayalaseema. 07 September (Day 3):♦ Heavy rain likely at isolated places over Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura and South Interior Karnataka. 08 September (Day 4):♦ Heavy rain likely at isolated places over Assam & Meghalaya and Nagaland, Manipur, Mizoram & Tripura. 09 September (Day 5):♦ Heavy rain likely at isolated places over Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, Sub-Himalayan West Bengal & Sikkim and Kerala. Weather Outlook for subsequent 2 days (from 1430 IST of 10 September to 1430 IST of 12 September, 2017) Rain at most places likely over northeast India and northern parts of peninsular India with isolated heavy falls. Rain at many places likely over central India, remaining parts of peninsular India and Islands. Rain at a few places likely over rest parts of the country, outside northwest India where it is likely to be isolated. 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 06 September, 2017.
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Special Daily Weather Report 05 September, 2017
Monsoon Watch
Southwest monsoon has been Vigorous over South Interior Karnataka and Active over Arunachal Pradesh and
Rayalaseema during past 24 hours.
Heavy to very heavy rain with extremely falls occurred at isolated places over Tamilnadu & Puducherry; Heavy to very heavy at isolated places over Sub-Himalayan West Bengal & Sikkim; Heavy rain at isolated places over Assam & Meghalaya, Telangana, Rayalaseema, and Interior Karnataka from 0830 hours IST of yesterday to 0830 hours IST of today.
Thunderstorm occurred at isolated places over Punjab, West Rajasthan, Odisha, Nagaland, Manipur, Mizoram & Tripura, Assam & Meghalaya, West Bengal & Sikkim, Coastal Andhra Pradesh, Interior Karnataka, Rayalaseema, Kerala and Tamilnadu 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 04 September 2017
Region Actual Normal % Departure from Long Period Average All India 712.9 742.5 -4% East & Northeast India 1188.2 1182.7 0% Northwest India 508.9 524.0 -3% Central India 774.1 828.8 -7% South Peninsula 541.5 578.0 -6%
Weather Forecast (valid upto 1430 hours IST of 10 September, 2017) No significant change in maximum and minimum temperatures very likely over the country during next 2-3 days.
Thunderstorm very likely at isolated places over Coastal Andhra Pradesh, Telangana and Rayalaseema during next 48 hours and over Jammu division, east Vidarbha and North Interior Karnataka during next 24 hour.
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)
05 September (Day 1):♦ Heavy rain very likely at isolated places over Sub-Himalayan West Bengal & Sikkim, Arunachal Pradesh, Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, South Interior Karnataka, Rayalaseema, Kerala and Tamilnadu & Puducherry. ♦ Thunderstorm accompanied with gusty winds & lighting at isolated places very likely over Odisha and with gusty winds over Coastal Andhra Pradesh, Telangana and Rayalaseema. 06 September (Day 2):♦ Heavy rain very likely at isolated places over South Interior Karnataka and Tamilnadu & Puducherry. ♦ Thunderstorm accompanied with gusty winds at isolated places very likely over West Madhya Pradesh, Coastal Andhra Pradesh, Telangana and Rayalaseema. 07 September (Day 3):♦ Heavy rain likely at isolated places over Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura and South Interior Karnataka. 08 September (Day 4):♦ Heavy rain likely at isolated places over Assam & Meghalaya and Nagaland, Manipur, Mizoram & Tripura. 09 September (Day 5):♦ Heavy rain likely at isolated places over Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, Sub-Himalayan West Bengal & Sikkim and Kerala.
Weather Outlook for subsequent 2 days (from 1430 IST of 10 September to 1430 IST of 12 September, 2017)
Rain at most places likely over northeast India and northern parts of peninsular India with isolated heavy falls.
Rain at many places likely over central India, remaining parts of peninsular India and Islands.
Rain at a few places likely over rest parts of the country, outside northwest India where it is likely to be isolated.
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 06 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 SCT
2 ARUNACHAL PRADESH FWS ACTIVE
3 ASSAM & MEGHALAYA FWS NORMAL
4 NAGA.MANI.MIZO.&TRIPURA FWS NORMAL
5 SUB-HIMALAYAN W.BENG.& SIKKIM FWS NORMAL
6 GANGETIC WEST BENGAL ISOL
7 ODISHA ISOL
8 JHARKHAND DRY
9 BIHAR ISOL
10 EAST UTTAR PRADESH ISOL
11 WEST UTTAR PRADESH ISOL
12 UTTARAKHAND ISOL
13 HARYANA, CHANDIGARH & DELHI ISOL
14 PUNJAB SCT NORMAL
15 HIMACHAL PRADESH ISOL
16 JAMMU & KASHMIR DRY
17 WEST RAJASTHAN ISOL NORMAL
18 EAST RAJASTHAN ISOL
19 WEST MADHYA PRADESH ISOL
20 EAST MADHYA PRADESH ISOL
21 GUJARAT REGION. D.D.& N. HAVELI SCT
22 SAURASHTRA KUTCH & DIU ISOL
23 KONKAN & GOA ISOL
24 MADHYA MAHARASHTRA ISOL
25 MARATHAWADA ISOL
26 VIDARBHA ISOL
27 CHHATTISGARH ISOL
28 COASTAL ANDHRA PRADESH SCT NORMAL
29 TELANGANA SCT NORMAL
30 RAYALASEEMA FWS ACTIVE
31 TAMILNADU & PUDUCHERRY SCT NORMAL
32 COASTAL KARNATAKA ISOL
33 NORTH INTERIOR KARNATAKA SCT NORMAL
34 SOUTH INTERIOR KARNATAKA FWS VIGOROUS
35 KERALA WS NORMAL
36 LAKSHADWEEP DRY
RAINFALL DISTRIBUTION & MONSOON ACTIVITY 05 SEPT. 2017
Fig-1
Latest Satellite Image of INSAT 3-D 05 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)