Monday, May 08, 2023 Time of Issue: 0745 hours IST (MORNING) ALL INDIA WEATHER SUMMARY AND FORECAST BULLETIN
Significant Weather Features
Forecast and warning in association with cyclogenesis over Bay of Bengal:
A cyclonic circulation lies over southeast Bay of Bengal & adjoining south Andaman Sea and extends upto middle tropospheric level. Under its influence a low pressure area is likely to form today, the 8th May over the same region. It is likely to intensify into a depression over Southeast Bay of Bengal and adjoining South Andaman Sea around 9th May. Thereafter, it is likely to intensify into a cyclonic storm while moving nearly northwards towards central Bay of Bengal and adjoining north Andaman Sea. The details of its path and intensification will be provided after the formation of the low pressure area. The system is under constant watch and being monitored regularly. Under the influence of this system following weather is expected:
Rainfall Warning: Moderate rainfall at most places during 8th-12th with scattered heavy to very heavy rainfall and isolated extremely heavy falls very likely over Andaman & Nicobar Islands on 10th & 11th May and isolated heavy to very heavy rainfall on 8th, 9th and 12th May, 2023.
Wind Warning: a) Squally weather with wind speed reaching 40-50 kmph gusting to 60 kmph is likely to prevail over southeast Bay of Bengal, Andaman & Nicobar Islands and adjoining Andaman Sea on 8th May.
b) Wind speed would gradually increase becoming 50-60 kmph gusting to 70 kmph over southeast Bay of Bengal, Andaman & Nicobar Islands and adjoining Andaman Sea on 9th May.
c) Wind speed would further increase gradually becoming 60-70 kmph gusting to 80 kmph over southeast and adjoining central Bay of Bengal, Andaman & Nicobar Islands and Andaman Sea during 10th to 12th May.
Sea condition: Sea condition is likely to be rough over southeast Bay of Bengal and adjoining south Andaman Sea on 8th May and very rough from 9th May onwards. It is likely to be very rough to high over southeast and adjoining central Bay of Bengal and Andaman Sea from 10th May onwards till 12th May.
Advisory:
a) Fishermen, small ships, boats and trawlers are advised not to venture into southeast Bay of Bengal and adjoining areas of Andaman Sea from 7th May onwards, and into southeast & adjoining central Bay of Bengal and Andaman Sea from 9th May onwards.
b) Those who are over southeast Bay of Bengal and adjoining south Andaman Sea are advised to return to safer places and those over central Bay of Bengal and north Andaman Sea are advised to return before 9th May.
c) Regulation of tourism and offshore activities and shipping near Andaman and Nicobar Islands during 8th - 12th May and d) Regulation of shipping activity over the sea areas of southeast & central Bay of Bengal and Andaman Sea during 8th-12th May.
Fishermen, small ships, boats and trawlers are advised not to venture into southeast Bay of Bengal and adjoining areas of Andaman Sea from 8th May onwards and into southeast & adjoining central Bay of Bengal from 9th onwards.
Forecast and warning over rest parts of the country during next five days:
Northwest India:
Scattered to fairly widespread rainfall/snowfall with thunderstorm/lightning/gusty winds very likely over Western Himalayan region on 08th May.
Hailstorm very likely over Uttarakhand on 08th May.
South India:
Light/moderate scattered to fairly widespread rainfall with thunderstorm/lightning/gusty winds very likely over Kerala & Mahe, South Interior Karnataka and Tamil Nadu, Puducherry & Karaikal; light isolated rainfall over the rest parts of the region during next 5 days.
Heavy rainfall very likely at isolated places over Kerala & Mahe during 09th-12th May and over South Interior Karnataka on 10th-12th May.
Northeast India:
Scattered to fairly widespread rainfall likely over Arunachal Pradesh & Assam & Meghalaya during next 5 days with isolated heavy rainfall/snowfall over Arunachal Pradesh on 09th & 10th May.
No significant weather likely over rest parts of the country.
Maximum Temperatures, its forecast and Heat Wave Warnings:
Yesterday, Maximum Temperatures were below 40°C over most parts of the country except some part of West Rajasthan and at isolated places over Gujarat state, Madhya Pradesh, Interior Odisha, west Jharkhand and southeast Uttar Pradesh where they are 40-41°C . They were below normal by 2-4°C over most parts of the country except many parts of northeast India, west Bengal & Sikkim and Coastal Karnataka; over some parts of Bihar, Coastal Odisha, northeast Uttar Pradesh, south Konkan & Goa, where they were near normal.
Maximum temperatures are very likely to increase by 3-5°C over most parts of the country during next 5 days and become near normal over Northwest India by 08th May and over remaining parts of the country by 10th May.
No Heat wave conditions likely over any part of India during next 5 days.
* Red color warning does not mean "Red Alert" Red color warning means "Take Action".
Main Weather Observations
Rainfall/thundershowers observed (from 0830 hours IST to 1730 hours IST of yesterday): at a few places over Himachal Pradesh, Uttarakhand and Chhattisgarh and at isolated places over Jammu, Kashmir, Ladakh, Gilgit, Baltistan & Muzaffarabad, Sub- Himalayan West Bengal & Sikkim, East Rajasthan, Odisha, East Madhya Pradesh, Vidarbha, Madhya Maharashtra, Tamil Nadu, Puducherry & Karaikal, South Interior Karnataka and Andaman & Nicobar Islands.
Significant rainfall recorded (from 0830 hours IST to 1730 hours IST of yesterday) (in cm): Gangtok and Tiruppattur-2 each; Sangli and Kalpa-1 each.
Thunderstorm Observed (from 0830 hours IST of yesterday to 0530 hours IST of today): at isolated places over Uttarakhand, Himachal Pradesh, Jammu, Kashmir, Ladakh, Gilgit, Baltistan & Muzaffarabad, Haryana, Chandigarh & Delhi, West Uttar Pradesh, Rajasthan, Sub- Himalayan West Bengal & Sikkim, Assam & Meghalaya, Madhya Maharashtra, Rayalaseema, Coastal Andhra Pradesh & Yanam, Tamil Nadu, Puducherry & Karaikal.
Minimum Temperature Departures (as on 07-05-2023): Minimum temperatures were above normal (1.6°C to 3.0°C) at a few places over Andaman & Nicobar Islands, Kerala &
Mahe, at isolated places over Nagaland, Manipur, Mizoram & Tripura. They were markedly below normal (-5.1°C or less) at a few places over Jammu, Kashmir, Ladakh, Gilgit, Baltistan
& Muzaffarabad, Haryana, Chandigarh & Delhi; appreciably below normal (-3.1°C to - 5.0°C) at many places over Uttarakhand, Punjab, Telangana; at a few places over East Rajasthan, Madhya Pradesh, Bihar; at isolated places over Himachal Pradesh, West Uttar Pradesh, Vidarbha, Rayalaseema; below normal (-1.6°C to -3.0°C) at many places over Jharkhand; at a few places over Arunachal Pradesh, Assam & Meghalaya, Madhya Maharashtra, Tamil Nadu, Puducherry & Karaikal; at isolated places over West Rajasthan, Chhattisgarh, Odisha, Coastal Andhra Pradesh & Yanam and near normal over rest parts of the country. Yesterday, the lowest minimum temperature of 17.7°C was reported at Chandigarh (Haryana, Chandigarh & Delhi) over the plains of the country.
Maximum Temperature Departures (as on 07-05-2023): Maximum temperatures were appreciably above normal (3.1°C to 5.0°C) at most places over Nagaland, Manipur, Mizoram & Tripura; at a few places over Assam & Meghalaya, Sub-Himalayan West Bengal &
Sikkim and Bihar and at isolated places over Gangetic West Bengal; above normal (1.6°C to 3.0°C) at isolated places over Odisha. They were markedly below normal (-5.1°C or less) at a few places over Himachal Pradesh and Marathwada and at isolated places over West Madhya Pradesh, Vidarbha and Tamil Nadu, Puducherry & Karaikal; appreciably below normal (-3.1°C to -5.0°C) at most places over Telangana; at many places over Jammu, Kashmir, Ladakh, Gilgit, Baltistan & Muzaffarabad, East Madhya Pradesh and Rayalaseema; at a few places over West Uttar Pradesh and at isolated places over Coastal Andhra Pradesh &
Yanam and Madhya Maharashtra; below normal (-1.6°C to -3.0°C) at most places over Chhattisgarh; at many places over Punjab, Haryana, Chandigarh & Delhi and East Rajasthan; at few places over West Rajasthan and isolated places over Saurashtra & Kutch and East Uttar Pradesh and near normal over rest parts of the country. Yesterday, the highest maximum temperature of 41.9°C was reported at Indore (West Madhya Pradesh).
Meteorological Analysis (Based on 0530 hours IST)
Weather Forecast for next 5 days (Upto 0830 hours IST of 13th May, 2023)
Weather Outlook for subsequent 2 days (During 13th–15th May, 2023)
Meteorological sub-division wise detailed 5 days rainfall forecast is given in Table-1.
Maximum Temperatures Forecast and Heat Wave Warnings:
Northwest India: Maximum temperatures are likely to rise by 2-4°C over most parts of the region during next 2 days and no significant change thereafter.
Central India: Maximum temperatures are likely to rise by 3-5°C over most parts of the region during next 2 days and no significant change thereafter.
East, West & South India: Maximum temperatures are likely to rise by 2-4°C over most parts of the region during next 5 days.
No significant Heat wave conditions likely over most parts of India during next 5 days.
The Western Disturbance as a cyclonic circulation over north Pakistan & neighboorhood now lies over north Pakistan & adjoining Jammu & Kashmir and extends upto 3.1 km above mean sea level with the trough aloft with its axis at 5.8 km above mean sea level now runs roughly along Long. 72°E to the north of Lat. 30°N.
The cyclonic circulation over northeast Rajasthan & neighbourhood at 0.9 km above mean sea level persists.
The cyclonic circulation over Southwest Bay of Bengal off north Tamilnadu coast between 1.5 km & 5.8 km above mean sea level tilts southwestwards with height persists.
The cyclonic circulation over southeast Bay of Bengal & adjoining south Andaman Sea extending upto middle tropospheric level persists. Under its influence a low pressure area is likely to form today, the 8th May over the same region. It is likely to intensify into a depression over Southeast Bay of Bengal and adjoining South Andaman Sea around 9th May.
Thereafter, it is likely to intensify into a cyclonic storm while moving nearly northwards towards central Bay of Bengal and adjoining north Andaman Sea. The details of its path and intensification will be provided after the formation of the low pressure area. The system is under constant watch and being monitored regularly.
Scattered to fairly widespread light/moderate rainfall likely to continue over northeast India, south peninsular India and Islands. Isolated light rainfall likely over parts of Northwest India. Dry weather over rest parts of the country.
* Red color warning does not mean "Red Alert" Red color warning means "Take Action".
Weather Warning during next 5 days
08 May (Day 1): ♦ Heavy rainfall very likely at isolated places over Nicobar Islands.
♦ Hailstorm with lightning very likely at isolated places over Uttarakhand.
♦ Thunderstorm with lightning & gusty winds (speed 30-40 kmph) very likely at isolated places over Punjab and Kerala &
Mahe; with lightning at isolated places over Sub-Himalayan West Bengal & Sikkim, Odisha, Himachal Pradesh, Jammu, Kashmir, Ladakh, Gilgit, Baltistan & Muzaffarabad, Madhya Maharashtra, Marathwada, Telangana, Tamil Nadu, Puducherry &
Karaikal and Interior Karnataka.
♦ Squally weather (with wind speed reaching 40-50 kmph gusting to 60 kmph) is likely to prevail over southeast Bay of Bengal and adjoining areas of Andaman & Nicobar Islands and Andaman Sea. Fishermen are advised not to venture into these areas.
09 May (Day 2): ♦ Heavy to very heavy rainfall very likely at isolated places over Nicobar Islands and heavy rainfall at isolated places over Arunachal Pradesh and Kerala & Mahe.
♦ Thunderstorm with lightning & Squall (speed 60-70 kmph) very likely at isolated places over Andaman & Nicobar Islands; with lightning & gusty winds (speed 30-40 kmph) at isolated places over Kerala & Mahe; with lightning at isolated places over Sub-Himalayan West Bengal & Sikkim and South Interior Karnataka.
♦ Squally Wind (with wind speed reaching 50-60 kmph gusting to 70 kmph) is likely to prevail over southeast Bay of Bengal and adjoining areas of Andaman & Nicobar Islands and Andaman Sea. Fishermen are advised not to venture into these areas.
10 May (Day 3): ♦ Heavy to very heavy rainfall at a few places with extremely heavy falls at isolated places very likely over Andaman & Nicobar Islands and heavy rainfall at isolated places over Arunachal Pradesh, South Interior Karnataka and Kerala & Mahe.
♦ Thunderstorm with lightning & Squall (speed 70-80 kmph gusting to 90 kmph) very likely at isolated places over Andaman & Nicobar Islands; with lightning & gusty winds (speed 30-40 kmph) at isolated places over Kerala & Mahe; with lightning at isolated places over Sub-Himalayan West Bengal & Sikkim and South Interior Karnataka.
♦ Gale Wind (with wind speed reaching 60-70 kmph gusting to 80 kmph) is likely to prevail over southeast and adjoining areas of central Bay of Bengal, Andaman & Nicobar Islands and Andaman Sea. Fishermen are advised not to venture into these areas.
11 May (Day 4): ♦ Heavy to very heavy rainfall at a few places with extremely heavy falls at isolated places likely over Andaman & Nicobar Islands and heavy rainfall at isolated places over South Interior Karnataka and Kerala & Mahe.
♦ Thunderstorm with lightning & Squall (speed 70-80 kmph gusting to 90 kmph) likely at isolated places over Andaman
& Nicobar Islands; with lightning & gusty winds (speed 30-40 kmph) at isolated places over Kerala & Mahe; with lightning at isolated places over Sub-Himalayan West Bengal & Sikkim, Lakshadweep and South Interior Karnataka.
♦ Gale wind (with wind speed reaching 60-70 kmph gusting to 80 kmph) is likely to prevail over southeast and adjoining areas of central Bay of Bengal and Andaman & Nicobar Islands and Andaman Sea. Fishermen are advised not to venture into these areas.
12 May (Day 5): ♦ Heavy to very heavy rainfall at isolated places likely over Andaman Islands and heavy rainfall at isolated places over Nicobar Islands, South Interior Karnataka and Kerala & Mahe.
♦ Thunderstorm with lightning & Squall (speed 70-80 kmph gusting to 90 kmph) likely at isolated places over Andaman Islands; with lightning & gusty winds (speed 30-40 kmph) at isolated places over Kerala & Mahe; with lightning at isolated places over Sub-Himalayan West Bengal & Sikkim, Lakshadweep and South Interior Karnataka.
♦ Gale wind (with wind speed reaching 60-70 kmph gusting to 80 kmph) is likely to prevail over southeast and adjoining areas of central Bay of Bengal and Andaman & Nicobar Islands and Andaman Sea. Fishermen are advised not to venture into these areas.
Table-1
5 Day Rainfall Forecast
S. No. Subdivision
08-May 09-May 10-May 11-May 12-May Day 1 Day 2 Day 3 Day 4 Day 5
1 ANDAMAN & NICOBAR ISLANDS WS WS WS WS WS
2 ARUNACHAL PRADESH FWS FWS FWS FWS SCT
3 ASSAM & MEGHALAYA SCT SCT SCT SCT ISOL
4 NAGALAND, MANIPUR, MIZORAM &
TRIPURA ISOL ISOL ISOL ISOL DRY
5 SUB-HIMALAYAN WEST BENGAL & SIKKIM ISOL ISOL ISOL ISOL ISOL
6 GANGETIC WEST BENGAL DRY DRY DRY DRY DRY
7 ODISHA ISOL ISOL ISOL ISOL ISOL
8 JHARKHAND DRY DRY DRY DRY DRY
9 BIHAR DRY DRY DRY DRY DRY
10 EAST UTTAR PRADESH DRY DRY DRY DRY DRY
11 WEST UTTAR PRADESH DRY DRY DRY DRY DRY
12 UTTARAKHAND SCT ISOL DRY DRY DRY
13 HARYANA CHANDIGARH & DELHI ISOL DRY DRY DRY DRY
14 PUNJAB ISOL DRY DRY DRY DRY
15 HIMACHAL PRADESH FWS ISOL DRY DRY ISOL
16 JAMMU & KASHMIR AND LADAKH FWS ISOL DRY DRY ISOL
17 WEST RAJASTHAN DRY DRY DRY DRY DRY
18 EAST RAJASTHAN DRY DRY DRY DRY DRY
19 WEST MADHYA PRADESH DRY DRY DRY DRY DRY
20 EAST MADHYA PRADESH DRY DRY DRY DRY DRY
21 GUJARAT REGION DRY DRY DRY DRY DRY
22 SAURASHTRA & KUTCH DRY DRY DRY DRY DRY
23 KONKAN & GOA ISOL ISOL DRY DRY DRY
24 MADHYA MAHARASHTRA ISOL ISOL DRY DRY DRY
25 MARATHAWADA ISOL ISOL DRY DRY DRY
26 VIDARBHA DRY DRY DRY DRY DRY
27 CHHATTISGARH ISOL DRY DRY DRY DRY
28 COASTAL ANDHRA PRADESH & YANAM ISOL ISOL ISOL DRY DRY
29 TELANGANA ISOL ISOL DRY DRY DRY
30 RAYALASEEMA SCT ISOL ISOL ISOL ISOL
31 TAMILNADU PUDUCHERRY & KARAIKAL SCT ISOL ISOL ISOL ISOL
32 COASTAL KARNATAKA FWS FWS FWS FWS FWS
33 NORTH INTERIOR KARNATAKA SCT DRY DRY ISOL ISOL
34 SOUTH INTERIOR KARNATAKA FWS FWS FWS FWS FWS
35 KERALA & MAHE FWS FWS FWS FWS FWS
36 LAKSHADWEEP SCT SCT SCT SCT SCT
Legend Category % Stations
WS Widespread/Most Places 76-100
FWS Fairly Widespread/Many Places 51-75
SCT Scattered/ A Few Places 26-50
ISOL Isolated Places 1-25
ALL INDIA WEEKLY WEATHER REPORT 27 APRIL 2023– 03 MAY, 2023
SIGNIFICANT WEATHER FEATURES
♦ Extensive thunderstorm and rainfall activities accompanied with lightening and gusty winds reported over most parts of India during almost all dates in the week. Isolated hails storm activities also reported over many areas during the same period. Such extended wet spell accompanied with large-scale convective activity over extensive areas of the country were due to combination of various weather systems a) Consecutively, three very active back to back WDs moved eastwards during 27 April-3 May 2023(in the week), from Iran towards eastern parts of India, across north and adjoining Central plains of India, as intense cyclonic circulation/
long amplitude trough in mid and upper tropospheric westerly, with their corresponding induced cyclonic circulation formed over Rajasthan b)Persistence of trough/wind discontinuity was also seen more prominently in the lower levels and extended from extreme southern parts of the Peninsular India to Vidarbha/east central India across central parts of the Peninsula India with embedded cyclonic circulation over southern Peninsular India.
♦ Heat wave:
No heat wave was observed over any parts of the country during the week due to clouding and rain and thunderstorm activities over the country.
♦ Heavy rain:
Heavy to very heavy rain occurred at isolated places over Tamilnadu & Puducherry on two days and over Coastal Andhra Pradesh & Yanam, Telangana and Kerala on one day and heavy over Tamilnadu & Puducherry on five days; over Telangana, North Interior Karnataka and Kerala &
Mahe on four days; over Sub-Himalayan West Bengal & Sikkim, Odisha, East Madhya Pradesh, Coastal Andhra Pradesh & Yanam on three days; over West Uttar Pradesh, West Madhya Pradesh and South Interior Karnataka on two days and over Arunachal Pradesh, Himachal Pradesh, East Rajasthan, Madhya Maharashtra, Marathwada and Vidarbha during the week.
♦ Hailstorm:
Hailstorm observed at isolated places over Odisha, East Uttar Pradesh, Himachal Pradesh, Vidarbha, Chhattisgarh and Telangana on four days; over Sub-Himalayan West Bengal, Jharkhand, Haryana, Uttarakhand and Jammu & Kashmir and Ladakh on three days; over Arunachal Pradesh, Haryana, Chandigarh & Delhi, Punjab, West Uttar Pradesh, East Madhya Pradesh, Madhya Maharashtra, Marathwada, Coastal Andhra Pradesh and Tamilnadu &
Puducherry on two days and over Nagaland, Manipur, Mizoram & Tripura on one day during the week.
♦ Temperature Scenario:
The highest maximum temperature of 41.0oC had been recorded at Anantapur (Rayalaseema) on 28th April 2023 and the lowest minimum temperature of 15.10oC had been recorded at Malankhand (East Madhya Pradesh) on 27th April 2023 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.
METEOROLOGICALANALYSIS
♦ Last week’s the Western Disturbance as a cyclonic circulation over south Pakistan & neighbourhood between 3.1 km & 7.6 km above mean sea level on 27th and 28th April 2023. It moved over to central Pakistan & neighbourhood and extends upto 3.1 km above mean sea level with trough aloft with its axis at 5.8 km above mean sea level roughly along Long. 72⁰ E to the north of 35⁰ N on 29th. It was seen as a cyclonic circulation over central Pakistan & neighbourhood and extended between 3.1 km & 9.3 km above mean sea level on 30th April; lay over Haryana & neighbourhood between 3.1 km & 7.6 km above mean sea level 01 May and persisted over the same area on 2 May and extened upto 4.5 km above mean sea level; lay over northeast Rajasthan & neighbourhood and extended upto 1.5 km above mean sea level on 03rd.
♦ A fresh Western Disturbance as a cyclonic circulation lay over north Pakistan & neighbourhood and Government of India
Ministry of Earth Sciences India Meteorological Department National Weather Forecasting Centre
extended upto 7.6 km above mean sea level on 28th April 2023. It has merged with the system over central Pakistan & neighbourhood on 29th.
♦ Last week the cyclonic circulation over southwest Rajasthan & neighbourhood between 1.5 km & 3.1 km above mean sea level and become less marked on 27th April 2023.
♦ An induced cyclonic circulation lay over south Pakistan & adjoining West Rajasthan and extended upto 1.5 km above mean se level on 30th April 2023. It lay over northwest Rajasthan & neighbourhood and extended to same height on 01 May and merged with 1st WD thereafter.
♦ A cyclonic circulation lay over southwest Uttar Pradesh & neighbourhood extended upto 3.1 km above mean se level on 30th April 2023 and become less marked 01 May.
♦ Another Western Disturbance as a cyclonic circulation lay over south Pakistan & neighbourhood between 3.1 & 5.8 km above mean sea level on 01 May 2023. It was seen as a trough with its axis at 5.8 km above mean sea level roughly along Long. 68°E to the north of Lat. 22°N on 02nd and ran roughly along Long. 72°E to the north of Lat. 25°N on 03rd May.
♦ A cyclonic circulation lay over east Bangladesh & neighbourhood at 0.9 km above mean sea level on 01 May 2023 and it has become less marked on 2nd May.
♦ A cyclonic circulation lay over south Chhattisgarh & neighbourhood upto 0.9 km above mean sea level on 02nd and 03rd May 2023.
♦ A cyclonic circulation lay over South Interior Karnataka & adjoining Tamil Nadu between 1.5 km & 3.1 km above mean sea level on 02nd May 2023. It lay over north Tamil Nadu & neighbourhood between same height on 03rd.
♦ Last week’s trough/wind discontinuity was seen from west Vidarbha to north Tamil Nadu across Marathwada and Interior Karnataka and extended upto 1.5 km above mean sea level on 28th; from Maldives area to Madhya Maharashtra across Southeast Arabian Sea & Coastal Karnataka at 0.9 km above mean sea level on 29th; from the cyclonic circulation over Southeast Arabian Sea & adjoining Lakshadweep area to south Chhattisgarh across northern parts of Karnataka & Telangana and extends upto 1.5 km above mean sea level on 30th ; from east Vidarbha to north interior Tamil Nadu across Telangana and interior Karnataka at 1.5 km above mean sea level on 1 May; from southwest Madhya Pradesh to south Tamil Nadu across Marathwada and interior Karnataka at 0.9 km above mean sea level on 2 May and persisted on 3 May.
RAINFALL SUMMARY
Category of the rainfall
WEEK SEASON
27.04.2023 TO 03.05.2023 01.03.2023 TO 03.05.2023 Number of
Sub-divisions
Sub-divisional % Area of Country
Number of Sub-divisions
Sub-divisional % Area of Country
LARGE EXCESS(LE) (+60% or more) 25 77% 22 72%
EXCESS (E) (+20% to +59%) 1 2% 2 4%
NORMAL (N) (+19% to -19%) 3 9% 6 9%
DEFICIENT (D) (-20% to -59%) 3 6% 4 14%
LARGE DEFICIENT (LD) (-60% to -99%) 4 6% 2 1%
NO RAIN (NR) (-100%) 0 0% 0 0%
Cumulative rainfall (mm) Actual (mm) Normal (mm) Departure (%) Category Actual (mm) Normal (mm) Departure (%) Category
EAST & NORTH-EAST INDIA 18.8 37.8 -50% D 141.5 199.9 -29% D
NORTH-WEST INDIA 25.8 7.4 +249% LE 98.3 83.4 +18% N
CENTRAL INDIA 25.1 2.6 +864% LE 67 18.2 +268% LE
SOUTH PENINSULA 43.8 10 +338% LE 102 54.2 +88% LE
Country as a whole 28 11.2 +150% LE 95.4 74.3 +28% E
Weekly cumulative rainfall distribution is presented in Fig-1.
Sub-division wise weekly and seasonal rainfall distribution is presented in Fig-2 and Fig-3.
Sub-division wise daily distribution of realised Rainfall is shown in Table-1(A).
Sub-division wise departure of realised Maximum temperature from Normal is shown in Table-1(C)
State wise distribution of number of districts with Large-Excesses, 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-division wise realised weekly rainfall (in cm) is shown in Annexure-1.
FORECAST & WARNING FOR THE NEXT WEEK (04 MAY TO 10 MAY, 2023)
Detailed seven days Sub-division wise rainfall-forecast is given in Table-1(B).
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Fig-1
WEEKLY CUMULATIVE RAINFALL MAP
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Table-1 (A)
METEOROLOGICAL SUB-DIVISIONWISE DISTRIBUTION OF REALISED RAINFALL-2023
S. No. MET.SUB-DIVISIONS 27 APR 28 APR 29 APR 30 APR 01 MAY 02 MAY 03 MAY
1 ANDAMAN & NICOBAR ISLANDS D SCT ISOL D D SCT FWS
2 ARUNACHAL PRADESH SCT FWS FWS FWS WS FWS FWS
3 ASSAM & MEGHALAYA ISOL FWS SCT FWS** SCT SCT SCT
4 NAGA.MANI.MIZO.& TRIPURA ISOL SCT ISOL ISOL ISOL SCT ISOL
5 SUB-HIM. W. BENGAL & SIKKIM SCT SCT SCT WS WS* SCT SCT
6 GANGETIC WEST BENGAL ISOL FWS** ISOL WS WS* FWS SCT
7 ODISHA ISOL ISOL ISOL ISOL SCT ISOL ISOL
8 JHARKHAND ISOL ISOL ISOL ISOL ISOL ISOL ISOL
9 BIHAR ISOL ISOL D ISOL SCT SCT ISOL
10 EAST UTTAR PRADESH ISOL D D ISOL SCT FWS* ISOL
11 WEST UTTAR PRADESH D ISOL ISOL ISOL FWS** FWS* SCT
12 UTTARAKHAND ISOL FWS ISOL SCT WS* WS** WS
13 HARYANA, CHANDIGARH. & DELHI D ISOL D ISOL SCT FWS** SCT
14 PUNJAB ISOL ISOL ISOL ISOL ISOL SCT FWS
15 HIMACHAL PRADESH FWS FWS ISOL SCT WS* WS WS
16 JAMMU, KASHMIR & LADAKH WS* FWS* FWS ISOL SCT FWS* WS
17 WEST RAJASTHAN ISOL ISOL FWS SCT SCT ISOL SCT
18 EAST RAJASTHAN ISOL ISOL SCT SCT FWS** SCT SCT
19 WEST MADHYA PRADESH SCT ISOL FWS** SCT FWS* ISOL SCT
20 EAST MADHYA PRADESH FWS ISOL FWS* FWS** FWS* FWS** FWS
21 GUJARAT REGION ISOL ISOL SCT ISOL SCT ISOL ISOL
22 SAURASTRA & KUTCH ISOL ISOL ISOL FWS* ISOL ISOL ISOL
23 KONKAN & GOA D ISOL ISOL ISOL ISOL ISOL ISOL
24 MADHYA MAHARASHTRA ISOL ISOL ISOL ISOL ISOL D ISOL
25 MARATHAWADA ISOL ISOL SCT SCT ISOL ISOL ISOL
26 VIDARBHA WS** WS FWS WS* WS** SCT WS
27 CHHATTISGARH ISOL FWS FWS FWS WS* FWS* FWS
28 COASTAL ANDHRA PR. & YANAM D ISOL ISOL ISOL FWS** FWS** ISOL
29 TELANGANA ISOL SCT SCT SCT WS** SCT ISOL
30 RAYALASEEMA ISOL D SCT SCT WS** ISOL SCT
31 TAMIL. PUDU. & KARAIKAL ISOL ISOL ISOL SCT SCT WS** FWS**
32 COASTAL KARNATAKA ISOL D ISOL ISOL D ISOL D
33 NORTH INTERIOR KARNATAKA D SCT FWS FWS SCT ISOL ISOL
34 SOUTH INTERIOR KARNATAKA ISOL ISOL ISOL FWS SCT SCT SCT
35 KERALA & MAHE FWS SCT FWS* WS* FWS* WS** WS
36 LAKSHADWEEP D SCT WS SCT FWS FWS SCT
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%) D / DRY - NO STATION REPORTED 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)
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Table-1 (B)
METEOROLOGICAL SUB-DIVISIONWISE WEEKLY RAINFALL FORECAST – 2023
S.No MET.SUB-DIVISIONS 04 MAY 05 MAY 06 MAY 07 MAY 08 MAY 09MAY 10 MAY 1 ANDAMAN & NICOBAR ISLANDS FWS L FWS L FWS L WS L ● WS L ● ● WS WS
2 ARUNACHAL PRADESH WS L ● WS L ● FWS L FWS FWS WS FWS
3 ASSAM & MEGHALAYA WS L ● FWSL SCTL SCT SCT SCT SCT
4 NAGA.MANI.MIZO.& TRIPURA SCTL SCTL ISOL ISOL ISOL ISOL ISOL
5 SUB-HIM. W. BENGAL & SIKKIM FWSL FWSL SCT SCT SCT SCT SCT
6 GANGETIC WEST BENGAL SCTL ISOL ISOL D D D D
7 ODISHA SCTL SCTL ISOL ISOL ISOL D D
8 JHARKHAND ISOL D D D D D D
9 BIHAR ISOLL D D D D D D
10 EAST UTTAR PRADESH ISOLL D D ISOLL D D D
11 WEST UTTAR PRADESH ISOLL D ISOL ISOLL D D D
12 UTTARAKHAND ISOLL ISOL ISOLL SCTL ISOL ISOL D
13 HARYANA, CHANDIGARH. & DELHI D ISOL SCT# ISOLL D D D
14 PUNJAB ISOL L ISOL L SCT# ISOL L D D D
15 HIMACHAL PRADESH ISOL L ISOL FWS L FWS L ISOL ISOL D
16 JAMMU, KASHMIR & LADAKH ISOL L ISOL L FWS L FWS L ISOL ISOL D
17 WEST RAJASTHAN ISOL L ISOL L ISOL L D D D D
18 EAST RAJASTHAN ISOL L ISOL L ISOL L D D D D
19 WEST MADHYA PRADESH ISOL L ISOL L D D D D D
20 EAST MADHYA PRADESH ISOL L ISOL L D D D D D
21 GUJARAT REGION ISOL L ISOL L ISOL L D D D D
22 SAURASTRA & KUTCH ISOL L ISOL L ISOL L D D D D
23 KONKAN & GOA ISOL L ISOL L ISOL ISOL D D D
24 MADHYA MAHARASHTRA ISOL# ISOL L ISOL L ISOL L ISOL D D
25 MARATHAWADA ISOL# ISOL L ISOL L ISOL D D D
26 VIDARBHA ISOL L ISOL L ISOL D D D D
27 CHHATTISGARH ISOL L ISOL L ISOL D D D D
28 COASTAL ANDHRA PR. & YANAM FWS L SCT L ISOL L ISOL ISOL SCT D
29 TELANGANA SCT L ISOL L ISOL L ISOL D D D
30 RAYALASEEMA SCT L SCT L SCT L SCT L ISOL ISOL ISOL
31 TAMIL. PUDU. & KARAIKAL FWS L ● SCT L SCT L SCT L SCT FWS ISOL
32 COASTAL KARNATAKA ISOL L ISOL ISOL L SCT L SCT L SCT SCT
33 NORTH INTERIOR KARNATAKA ISOL ISOL SCT L SCT L SCT L ISOL D
34 SOUTH INTERIOR KARNATAKA SCT L SCT L FWS L FWS L ● ● FWS SCT ISOL
35 KERALA & MAHE SCT L SCT L FWS L SCT L SCT L FWS WS
36 LAKSHADWEEP SCT SCT SCT SCT SCT D D
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%) D / DRY - NO RAINFALL
●Heavy Rainfall (64.5-115.5 mm) ●●Heavy to Very Heavy Rainfall (115.6-204.4 mm) ●●●Extremely Heavy Rainfall (204.5 mm or more)
F Fog * Snowfall DSDust storm /TS Thunderstorm
Thunderstorm with Squall
L Thunderstorm with Lightning #Thunderstorm with Hail
-Cold Wave (Minimum temperature departure from Normal -4.5 OC to -6.4OC) - -Severe Cold Wave (Minimum temperature departure from Norma ≤ -6.5OC)
+Heat Wave (Maximum temperature departure from Normal +4.5 OC to +6.4OC) + + Severe Heat Wave (Maximum temperature departure from Normal ≥ +6.5OC)
