Friday 04 December 2020 - Time of Issue: 0830 hours IST

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Friday 04 December 2020 MORNING Time of Issue: 0830 hours IST ALL INDIA WEATHER SUMMARY AND FORECAST BULLETIN

Significant Weather Features

♦ The Deep Depression over Gulf of Mannar close to Ramanathapuram District coast remains practically stationary during past six hours and lay centered at 0530 hrs IST of 04th December over Gulf of Mannar near Lat. 9.1°N and Long. 78.6°E close to Ramanathapuram District coast, about 40 km southwest of Ramanathapuram, 70 km west-southwest of Pamban and 160 km northeast of Kanniyakumari.

The associated wind speed is about 55-65 kmph gusting to 75 kmph. The Deep Depression is likely to move west-southwestwards and cross Ramanathapuram and adjoining Thoothukudi districts during next 06 hours with wind speed of 50-60 gusting to 70 kmph. It is very likely to weaken further into a Depression (wind speed 40-50 kmph gusting to 60 kmph) during next 12 hours.

♦ Under the influence of the above system:

i) Heavy to very heavy rainfall at isolated places very likely over Tamil Nadu, Puducherry & Karaikal and Kerala & Mahe during next 24 hours. Heavy rainfall at isolated places very likely over Lakshadweep area and south coastal Andhra Pradesh during next 24 hours.

ii) Sea condition is rough to very rough over Gulf of Mannar and adjoining southwest Bay of Bengal and along & off Tamilnadu coast and Sri Lanka coasts during next 12 hours and along and off Kerala coast, Lakshadweep-Maldives area & adjoining southeast Arabian Sea by today evening. Fishermen are advised not to venture into these areas.

Kindly visit:http://www.rsmcnewdelhi.imd.gov.in/index.php?lang=en for cyclone related information.

Main Weather Observations

♦ Rain/Thundershowers observed (from 0830 hrs IST to 1730 hours IST of yesterday): at most places over Tamilnadu, Puducherry

& Karaikal; at a few places over Andaman & Nicobar Islands, Rayalaseema and Kerala & Mahe and at isolated places over Coastal Andhra Pradesh & Yanam and South Interior Karnataka.

♦ Rainfall recorded (from 0830 hrs IST to 1730 hours IST of yesterday) (1 cm or more): Port Blair-4; Tiruchirapalli, Kodaikanal, Adirampattinam, Tondi and Ariyalur-3 each; Tirupathi and Puducherry-2 each; Kavali, Vellore, Nellore, Madurai, Coonoor and Cuddalore-1 each.

♦ Moderate to dense fog observed (from 1730 hrs IST of yesterday to 0530 hours IST of today): at isolated places over Uttar Pradesh, Sub-Himalayan West Bengal & Sikkim, Assam & Meghalaya, Punjab, Gangetic West Bengal and Tripura.

♦ Visibility recorded (from 1730 hrs IST of yesterday to 0530 hours IST of today)(500 meter or less): Bareilly and Lucknow -200;

Varanasi, Fursatgunj, Darjeeling, Haflong, Amritsar, Patiala, Sultanpur, Kailashahar and Kolkata-500.

♦ Maximum Temperature Departures as on 03-12-2020: Maximum temperatures were markedly above normal (1.6°C to 3.0°C) at many places over West Rajasthan; at isolated places over East Rajasthan; appreciably above normal (3.1°C to 5.0°C) at a few places over Jammu & Kashmir, Ladakh, Gilgit-Baltistan & Muzaffarabad, Madhya Pradesh and Jharkhand; at isolated places over Vidarbha, Gujarat and Odisha; above normal (1.6°C to 3.0°C) at a few places over Himachal Pradesh, Konkan & Goa, Chhattisgarh, West Bengal

& Sikkim and Assam & Meghalaya and at isolated places over Haryana, Chandigarh & Delhi, Madhya Maharashtra and West Uttar Pradesh. They were appreciably below normal (-3.1°C to -5.0°C) at many places over Tamilnadu, Puducherry & Karaikal; at isolated places over Rayalaseema and Kerala & Mahe; below normal (-1.6°C to -3.0°C) at a few places over Bihar; at isolated places over Coastal Andhra Pradesh & Yanam and Andaman & Nicobar Islands and near normal over rest parts of the country. Yesterday, the highest maximum temperature of 35.4°C was reported at Mahuva (Saurashtra & Kutch).

♦ Minimum Temperature Departures as on 03-12-2020: Minimum temperatures were appreciably above normal (3.1°C to 5.0°C) at a few places over West Rajasthan and at isolated places over Jammu & Kashmir, Ladakh, Gilgit-Baltistan & Muzaffarabad, Himachal Pradesh, Nagaland, Manipur, Mizoram & Tripura and Assam & Meghalaya; above normal (1.6°C to 3.0°C) at many places over Punjab and Uttarakhand; at a few places over Gujarat and Sub-Himalayan West Bengal & Sikkim; at isolated places over Haryana, Chandigarh &

Delhi, Uttar Pradesh, East Rajasthan, Arunachal Pradesh, Andaman & Nicobar Islands, Coastal Andhra Pradesh & Yanam, Madhya Maharashtra, Kerala & Mahe and Tamilnadu, Puducherry & Karaikal. They were below normal (-1.6°C to -3.0°C) at isolated places over Vidarbha and Konkan & Goa and near normal over rest parts of the country. Yesterday, the lowest minimum temperature of 6.5°C was reported at Churu (West Rajasthan) 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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Meteorological Analysis (Based on 0530 hours IST)

♦ The Deep Depression over Gulf of Mannar close to Ramanathapuram District coast remains practically stationary during past six hours and lay centered at 0530 hrs IST of 04th December over Gulf of Mannar near Lat. 9.1°N and Long. 78.6°E close to Ramanathapuram District coast, about 40 km southwest of Ramanathapuram, 70 km west-southwest of Pamban and 160 km northeast of Kanniyakumari. The associated wind speed is about 55-65 kmph gusting to 75 kmph. The Deep Depression is likely to move west-southwestwards and cross Ramanathapuram and adjoining Thoothukudi districts during next 06 hours with wind speed of 50-60 gusting to 70 kmph. It is very likely to weaken further into a Depression (wind speed 40-50 kmph gusting to 60 kmph) during next 12 hours.

♦ The cyclonic circulation over East Uttar Pradesh & adjoining Bihar extending upto 1.5 km above mean sea level persists.

♦ The cyclonic circulation over Malay Peninsula extending upto 5.8 km above mean sea level persists.

♦ A fresh Western disturbance is likely to affect Western Himalayan Region from 4th December, 2020.

♦ Another fresh Western disturbance is likely to affect Northwest India from 7th December, 2020.

Weather Forecast for next 5 days * upto 0830 hours IST of 09th December, 2020

♦ Meteorological sub-division wise detailed 5 days precipitation forecast is given in Table-1.

♦ No significant change in minimum temperatures likely over different parts of the country during next 3-4 days.

♦ Moderate fog in isolated pockets very likely over Nagaland, Manipur, Mizoram & Tripura and Assam

& Meghalaya during morning hours of 4th December and Shallow to Moderate fog in isolated pockets likely over Odisha and plains of northwest India during the morning hours of next 2 days.

Weather Outlook for subsequent 2 days from 09th December to 11th December, 2020.

♦ Scattered to Fairly widespread rainfall/snowfall likely over Western Himalayan Region. Isolated rainfall activity likely over Tamilnadu, Puducherry & Karaikal, Kerala & Mahe and Islands.

♦ Weather likely to be dry over the remaining parts of the country.

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Weather Warning during next 5 days *

04 December (Day 1): ♦ Heavy to very heavy rainfall at isolated places over south Tamil Nadu, Kerala & Mahe and Lakshadweep;

Heavy rainfall at isolated places over south Coastal Andhra Pradesh & Yanam, north Tamilnadu, Puducherry & Karaikal.

♦ Thunderstorm with lightning very likely at isolated places over Coastal Andhra Pradesh & Yanam, Rayalaseema, Lakshadweep, South Interior Karnataka, Kerala & Mahe and Tamilnadu, Puducherry & Karaikal.

♦ Dense fog very likely at isolated places over Nagaland, Manipur, Mizoram & Tripura and Assam & Meghalaya.

♦ Squally Winds (speed reaching 55-65 kmph gusting to 75 kmph) very likely to prevail along & off south Tamilnadu coast (Kanniyakumari, Tirunelveli, Thoothukudi and Ramanathapuram districts) and would gradually decrease to 45-55 kmph gusting to 65 kmph by evening. Squally Winds (speed reaching 35-45 kmph gusting to 55 kmph) along & off south Kerala coast (Thiruvananthapuram, Kollam, Pathanamthitta and Alappuzah district). Sea Condition very likely to be rough to very rough over Gulf of Mannar, Comorin area

& adjoining Southwest Bay of Bengal, along & off south Tamil Nadu & west Sri Lanka coast and over Comorin area & adjoining Southeast Arabian Sea along & off Kerala coast. Fishermen are advised not to venture into these areas.

05 December (Day 2): ♦ Heavy to very heavy rainfall very likely at isolated places over Lakshadweep and heavy rainfall at isolated places over Tamil Nadu, Puducherry & Karaikal and Kerala & Mahe.

♦ Thunderstorm with lightning very likely at isolated places over Coastal Andhra Pradesh & Yanam, Rayalaseema, Lakshadweep, South Interior Karnataka, Kerala & Mahe and Tamilnadu, Puducherry & Karaikal.

♦ Dense fog very likely at isolated places over Nagaland, Manipur, Mizoram & Tripura and Assam & Meghalaya.

♦ Sea Condition very likely to be rough to very rough over Lakshadweep-Maldives areas & adjoining Southeast Arabian Sea. Fishermen are advised not to venture into these areas.

06 December (Day 3): ♦ Heavy rainfall likely at isolated places over Tamil Nadu, Puducherry & Karaikal and Kerala & Mahe.

♦ Thunderstorm with lightning likely at isolated places over Lakshadweep.

♦ Dense fog likely at isolated places over Nagaland, Manipur, Mizoram & Tripura and Assam & Meghalaya.

07 December (Day 4): ♦ No weather warning.

08 December (Day 5): ♦ No weather warning.

Kindly download MAUSAM APP for location specific forecast & warning, MEGHDOOT APP for Agromet advisory and DAMINI APP for Lightning Warning & visit state MC/RMC website for district wise warning.

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Table-1

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ALL INDIA WEEKLY WEATHER REPORT 26 NOVEMBER – 02 DECEMBER 2020

Table-1(A) Table-1(B) Table-1(C) Table-2 Table-3 Fig-1 Fig-2 Annexure-1

SIGNIFICANT WEATHER FEATURES

 The Very Severe Cyclonic Storm ‘NIVAR’ crossed Tamilnadu & Puducherry coasts near Puducherry (near lat. 12.1°N and long. 79.9°E) during 2330 IST of 25^th Nov to 0230 IST of 26^th Nov as a Very Severe Cyclonic Storm with estimated wind speed of the order of 120-130 kmph gusting to 145 kmph;

after crossing, it weakened into a Severe Cyclonic Storm with wind speed of the order of 100-110 kmph gusting to 120 kmph and lay centred at 0230 hrs IST of 26^th November, 2020 over coastal Tamilnadu & Puducherry; moving northwestwards, it weakened into a Cyclonic Storm and lay centred over north coastal Tamilnadu in the morning of 2^nd; moving north-northwestwards, it weakened into a Deep Depression in the afternoon of 26^th November, 2020 over south Rayalaseema & neighbourhood;

then it moved nearly north-northeastwards and weakened into a Depression at around 2330 hrs IST of 26^th November, 2020 over South Coastal Andhra Pradesh & neighbourhood; moving north- northeastwards further, it weakened into a Well Marked Low pressure area in the early morning of 27^th November, 2020 and lay over south Coastal Andhra Pradesh & adjoining Westcentral Bay of Bengal; it weakened into a Low pressure area in the evening of 27^th over the same area and has become less marked in the early morning of 28^th November 2020; this system has caused fairly widespread to widespread rainfall/thunderstorms along with intense to very intense rainfall activity over Tamil Nadu, Puducherry & Karaikkal, Rayalaseema and south Coastal Andhra Pradesh during the first half of the week.

 A Low Pressure area has formed over South Andaman Sea and adjoining areas of Southeast Bay of Bengal & Equatorial Indian Ocean on 28^thNovember 2020;it has become a Well Marked Low pressure area and lay over Southeast Bay of Bengal & adjoining areas of South Andaman Sea and Equatorial Indian Ocean on 29^th; it concentrated into a Depression in the early morning of 30^th November 2020 over Southeast Bay of Bengal; moving nearly westwards, it intensified into a Deep Depression in the early morning of 01^st December 2020 over Southwest and adjoining Southeast Bay of Bengal ; moving west-northwestwards, it intensified into Cyclonic Storm ‘Burevi’ in the evening of the same day and lay centered at 1730 hrs IST of 01^st December 2020 over Southwest Bay of Bengal; maintaining the same intensity it continued to move west-northwestwards and crossed Sri Lanka coast close to north of Trincomalee near Lat. 8.85°N and Long. 81.0°E between 2230 and 2330 hours IST of 2^nd December 2020 as a Cyclonic Storm with wind speed of the order of 80-90 kmph gusting to 100 kmph; this system during its initial stage as a Low pressure area has caused fairly widespread to widespread rainfall/thunderstorms along with isolated intense rainfall activity over Andaman & Nicobar islands.

 Movement of a Western Disturbance and its induced cyclonic circulation have caused scattered to fairly widespread rainfall /snowfall/thunderstorms over Western Himalayan Region and isolated to scattered rainfall/thunderstorm activity over adjoining plains of Northwest India in the beginning of the week.

Heavy Rainfall:

 Heavy to very heavy rainfall with extremely heavy rainfall at isolated places had been occurred over Coastal Andhra Pradesh & Yanam, Tamil Nadu, Puducherry & Karaikkal and Rayalaseema on two days each during the week.

 Heavy to very heavy rainfall at isolated places had been occurred over Andaman & Nicobar Islands on one day during the week.

 Heavy rainfall at isolated places had been occurred over Coastal Andhra Pradesh & Yanam, Tamil Nadu, Puducherry & Karaikkal and Kerala & Mahe on one day each during the week.

Temperature Scenario:

The lowest minimum temperature of 4.1 ^oC had been recorded at Churu (West Rajasthan) on 29^th November 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

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METEOROLOGICALANALYSIS

 Last week’s Very Severe Cyclonic Storm ‘NIVAR’ crossed Tamilnadu & Puducherry coasts near Puducherry (near lat. 12.1°N and long. 79.9°E) during 2330 IST of 25^th Nov to 0230 IST of 26^th Nov as a Very Severe Cyclonic Storm with estimated wind speed of 120-130 kmph gusting to 145 kmph; after crossing, it weakened into a Severe Cyclonic Storm with wind speed of the order of 100- 110 kmph gusting to 120 kmph and lay centred at 0230 hrs IST of 26^th November, 2020 over coastal Tamilnadu &

Puducherry near lat. 12.1°N and long 79.9°E, near Puducherry;it moved northwestwards,weakened into a Cyclonic Storm and lay centred at 0830 hrs IST of 26^th November, 2020 over north coastal Tamilnadu near Lat. 12.6°N and Long 79.4°E, about 85 km north-northwest of Puducherry and about 95 km west- southwest of Chennai; then it moved north-northwestwards, weakened into Deep Depression and lay centred at 1430 hrs IST of 26^th November, 2020 over south Rayalaseema & neighbourhood near Lat.

13.4°N and Long 79.2°E, about 50 Km west-southwest of Tirupathi and 115 Km west-northwest of Chennai; moving nearly north-northeastwards, it weakened into a Depression and lay centred at 2330 hrs IST of 26^th November, 2020 over South Coastal Andhra Pradesh & neighbourhood near Lat. 14.0°N and Long 79.5°E, about 35 Km nearly north of Tirupathi and 70 Km south-southwest of Nellore; moving further north-northeastwards, it weakened into a Well Marked Low pressure area at 0530 hrs IST of 27^th November, 2020 and lay over south Coastal Andhra Pradesh & adjoining Westcentral Bay of Bengal with the associated cyclonic circulation extending upto 4.5 km above mean sea level and it persisted over the same region in the forenoon of the same day; it has weakened into a Low pressure area with the associated cyclonic circulation extending upto 4.5 km above mean sea level in the evening of 27^th; the Low pressure area has become less marked in the early morning of 28^th , however, its associated cyclonic circulation lay over the same region extending upto 3.1 km above mean sea level; it has also become less marked in the morning of 28^th November 2020.

 Last week’s Western Disturbance wasseen as a trough in mid & upper tropospheric westerlies with its axis at 5.8 km above mean sea level roughly along Long. 71°E to the north of Lat. 25°N on 26^th November 2020; it lay as a cyclonic circulation over West Uttar Pradesh & neighbourhood between 3.1 & 4.5 km above mean sea level with a trough aloft with its axis at 5.8 km above mean sea level roughly along Long.

78°E to the north of Lat. 25°N on 27^th; the cyclonic circulation over West Uttar Pradesh & neighbourhood associated with the Western Disturbance has become less marked, however, its remnant trough in mid tropospheric westerlies with its axis at 5.8 km above mean sea level ran roughly along Long. 88°E to the north of Lat. 28°N on 28^th; it has moved away northeastwards on 29^th November 2020.

 Last week’s induced cyclonic circulation over northwest Rajasthan and neighbourhood lay over northeast Rajasthan & neighbourhood at 1.5 km above mean sea level on 26^th November 2020;it has become less marked on 27^thNovember 2020.

 Last week’s cyclonic circulation over northeast Bangladesh & neighbourhood at 1.5 km above mean sea level persisted over the same region and was seen at the same level on 26^th and 27^th November 2020; it persisted over the same region and extended upto 1.5 km above mean sea

 Level on 28^th; it has become less marked on 29^th November 2020.

 Last week’s cyclonic circulation over Bihar & adjoining East Uttar Pradesh between 1.5 & 2.1 km above mean sea level has become less marked on 26^th November 2020.

 A Cyclonic Circulation lay over East Equatorial Indian Ocean & adjoining south Andaman Sea and extended upto 5.8 above mean sea level on 27^th November 2020; under its influence, a Low Pressure area has formed over South Andaman Sea and adjoining areas of Southeast Bay of Bengal & Equatorial Indian Ocean with the associated cyclonic circulation extending upto mid tropospheric levels on 28^th;it lay as a Well Marked Low pressure area over Southeast Bay of Bengal & adjoining areas of South Andaman Sea and Equatorial Indian Ocean with the associated cyclonic circulation extending upto mid tropospheric levels on 29^th; it has concentrated into a Depression and lay centered at 0530 hrs IST of 30^th November 2020 over Southeast Bay of Bengal near Lat. 7.5° N and Long. 88.0°E, about 750 km east-southeast of Trincomalee (Sri Lanka) and 1150 km east-southeast of Kanyakumari (India);moving west-northwestwards it lay centered at 0830hours IST of 30^th November over the same region near Lat. 7.7°N and Long.

87.70°E, about 710 km east-southeast of Trincomalee (Sri Lanka) and 1120 km east-southeast of Kanyakumari (India); moving nearly westwards, it intensified into a Deep Depression and lay centered at 0530 hrs IST of 01^st December 2020 over Southwest and adjoining Southeast Bay of Bengal near Lat. 7.8°

N and Long. 86.0°E, about 530 km east-southeast of Trincomalee (Sri Lanka) and 930 km east-southeast of Kanniyakumari (India); moving nearly westwards further, it lay centered at 0830 hours IST of 01st December, 2020 over the same region near Lat. 7.8°N and Long. 85.7°E, about 500 km east-southeast of Trincomalee (Sri Lanka) and 900 km east-southeast of Kanyakumari (India); it moved west-northwestwards and intensified into Cyclonic Storm ‘Burevi’ and lay centered at 1730 hrs IST of 01^st December 2020 over Southwest Bay of Bengal near Lat. 7.9° N and Long. 84.8°E, about 400 km east-southeast of Trincomalee

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(Sri Lanka) and 800 km east-southeast of Kanniyakumari (India); moving west-northwestwards, it lay centered at 0830 hours IST of 02nd December, 2020 over Southwest Bay of Bengal near Lat.8.6°N and Long. 83.0°E, about 200 km east of Trincomalee (Sri Lanka), 420 km east-southeast of Pamban (India) and 600 km nearly east-northeast of Kanniyakumari (India);it moved west-northwestwards and crossed Sri Lanka coast close to north of Trincomalee near Lat. 8.85°N and Long. 81.0°E between 2230 and 2330 hours IST of 2^nd December 2020 as a Cyclonic Storm with wind speed of the order of 80-90 kmph gusting to 100 kmph and lay centered at 2330 hrs IST of 02^nd December over Sri Lanka (close to north of Trincomalee) near Lat. 8.9°N and Long. 80.9°E, about 40 km north-northwest of Trincomalee, 190 km east-southeast of Pamban (India) and 380 km east-northeast of Kanniyakumari (India).

 A Western Disturbance as a trough in mid tropospheric westerlies with its axis at 5.8 km above mean sea level ran roughly along Long. 60°E to the north of Lat. 25°N on 28^th November 2020; it continued to be seen as a trough in mid tropospheric westerlies with its axis at 5.8 km above mean sea level, roughly along Long. 62°E to the north of Lat. 30°N on 29^th; it has become less marked on 30^th November 2020.

 A cyclonic circulation lay over Sub-Himalayan West Bengal & Sikkim at 3.1 km above mean sea level on 28^th November 2020; it has become less marked on 29^th November 2020.

 A cyclonic circulation lay over Haryana & adjoining West Uttar Pradesh and extended upto 1.5 km above mean sea level on 29^th November 2020; it has become less marked on 30^th November 2020.

 A cyclonic circulation lay over Eastcentral Arabian Sea off Maharashtra coast between 1.5 & 2.1 km above mean sea level on 29^th November 2020; it has become less marked on 30^th November 2020.

 A cyclonic circulation lay over Bangladesh and neighbourhood and extended upto 1.5 km above mean sea level on 30^th November 2020; it persisted over the same region and extended between 1.5 & 3.1 km above mean sea level on 1^st December 2020; it continued to persist over the same region and was seen at 1.5 km above mean sea level on 2^nd December 2020.

 A cyclonic circulation lay over Southeast Arabian Sea off Kerala coast and extended upto 0.9 km above mean sea level on 30^th November 2020; it has become less marked on 1^st December 2020.

 A Cyclonic circulation lay over East Uttar Pradesh & neighbourhood and extended upto 1.5 km above mean sea level on 2^nd December 2020.

 A Cyclonic circulation lay over Malay Peninsula and neighbourhood and extended upto 5.8 km above mean sea level on 2^nd December 2020.

RAINFALL SUMMARY Category of the rainfall

WEEK SEASON

26.11.2020 TO 02.12.2020 01.10.2020 TO 02.12.2020 Number of Sub-divisions Number of Sub-divisions

LARGE EXCESS (+60% or more) 9 2

EXCESS (+20% to +59%) 1 9

NORMAL (+19% to -19%) 4 8

DEFICIENT (-20% to -59%) 2 10

LARGE DEFICIENT (-60% to -99%) 10 7

NO RAIN (-100%) 10 0

Cumulative rainfall (mm) Actual Normal % Departure Actual Normal % Departure

EAST & NORTH-EAST INDIA 0.1 4.2 -97% 138.8 154.7 -10%

NORTH-WEST INDIA 2.6 2.9 -9% 18.3 35.4 -48%

CENTRAL INDIA 0.5 2.7 -80% 80.8 70.0 +15%

SOUTH PENINSULA 44.2 10.8 +310% 268.6 246.2 +9%

country as a whole 9.7 4.6 +111% 107.7 107.5 0%

 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 minimum 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 03 DECEMBER TO 09 DECEMBER 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 26 NOV 27 NOV 28 NOV 29 NOV 30 NOV 01 DEC 02 DEC

1 ANDAMAN & NICO.ISLANDS SCT SCT FWS FWS FWS SCT FWS

2 ARUNACHAL PRADESH D D ISOL D D D D

3 ASSAM & MEGHALAYA D D D D D D D

4 NAGA.MANI.MIZO.& TRIPURA D D D D D D D

5 SUB-HIM.W. BENG. & SIKKIM D ISOL ISOL D D D D

6 GANGETIC WEST BENGAL D D D D D D D

7 ODISHA ISOL ISOL ISOL D D D D

8 JHARKHAND D ISOL ISOL D D D D

9 BIHAR D ISOL ISOL D D D D

10 EAST UTTAR PRADESH D D D D D D D

11 WEST UTTAR PRADESH ISOL ISOL D D D D D

12 UTTARAKHAND SCT ISOL D D D D D

13 HARYANA CHD. & DELHI SCT ISOL D D D D D

14 PUNJAB SCT D D D D D D

15 HIMACHAL PRADESH WS SCT D D D D D

16 JAMMU & KASHMIR AND LADAKH FWS ISOL ISOL D D D D

17 WEST RAJASTHAN ISOL D D D D D D

18 EAST RAJASTHAN SCT ISOL D D D D D

19 WEST MADHYA PRADESH D D D D D D D

20 EAST MADHYA PRADESH D ISOL D D D D D

21 GUJARAT REGION D D D D D D D

22 SAURASTRA & KUTCH D D D D D D D

23 KONKAN & GOA D D D D D D D

24 MADHYA MAHARASHTRA D D D D D D D

25 MARATHAWADA D D D D D D D

26 VIDARBHA ISOL ISOL ISOL D D D D

27 CHHATTISGARH D SCT ISOL D D D D

28 COASTAL ANDHRA PR. & YANAM FWS WS WS SCT ISOL ISOL D

29 ^TELANGANA ISOL SCT FWS ISOL D D D

30 RAYALASEEMA FWS WS WS SCT SCT D D

31 TAMIL. PUDU. & KARAIKAL FWS FWS SCT SCT SCT ISOL ISOL

32 COASTAL KARNATAKA D D D D D D D

33 NORTH INT.KARNATAKA D ISOL FWS ISOL ISOL D D

34 SOUTH INT.KARNATAKA SCT ISOL ISOL ISOL ISOL D D

35 KERALA & MAHE SCT SCT ISOL ISOL ISOL ISOL D

36 LAKSHADWEEP D D FWS D D 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 STATION REPORTED RAINFALL

* ACTIVE (R/F 1^1/2- 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 & Wx. WARNINGS-2020

Sr. No MET.SUB-DIVISIONS 03 DEC 04 DEC 05 DEC 06 DEC 07 DEC 08 DEC 09 DEC

1 ANDAMAN & NICO.ISLANDS FWS^● FWS FWS SCT ISOL D D

2 ARUNACHAL PRADESH SCT ISOL ISOL ISOL D D ISOL

3 ASSAM & MEGHALAYA ISOL ISOL^F ISOL^F ISOL^F D D D

4 NAGA.MANI.MIZO.& TRIPURA D D^F ISOL^F D^F D D D

5 SUB-HIM.W. BENG. & SIKKIM ISOL ISOL ISOL ISOL ISOL D ISOL

6 GANGETIC WEST BENGAL D D D D D D D

7 ODISHA SCT ISOL D D D D D

8 JHARKHAND ISOL D D D D D D

9 BIHAR D D D D D D D

10 EAST UTTAR PRADESH D^F D D D D D D

11 WEST UTTAR PRADESH D^F D D D D D D

12 UTTARAKHAND D D D D D ISOL ISOL

13 HARYANA CHD. & DELHI D D D D D D D

14 PUNJAB D D D D D D D

15 HIMACHAL PRADESH D ISOL D D ISOL FWS ISOL

16 JAMMU & KASHMIR AND LADAKH D SCT ISOL D FWS WS SCT

17 WEST RAJASTSAN D D D D D D D

18 EAST RAJASTSAN D D D D D D D

19 WEST MADHYA PRADESH D D D D D D D

20 EAST MADHYA PRADESH D D D D D D D

21 GUJARAT REGION D D D D D D D

22 SAURASTRA & KUTCH D D D D D D D

23 KONKAN & GOA D D D D D D D

24 MADHYA MAHARASHTRA D D D D D D D

25 MARATHAWADA D D D D D D D

26 VIDARBHA D D D D D D D

27 CHHATTISGARH D D D D D D D

28 COASTAL ANDHRA PR. & YANAM SCT^{● L} SCT^{● L} SCT^L ISOL ISOL D D

29 TELANGANA D D D D D D D

30 RAYALASEEMA SCT^{● L} SCT^{● L} SCT^L ISOL ISOL D D

31 TAMIL. PUDU. & KARAIKAL WS^{●●● L} WS^{●● L} WS^{● L} FWS^● FWS SCT ISOL

32 COASTAL KARNATAKA D ISOL ISOL ISOL D D D

33 NORTH INTERIOR KARNATAKA D D D D D D D

34 SOUTH INTERIOR KARNATAKA SCT^L SCT^L SCT^L ISOL ISOL D D

35 KERALA & MAHE WS^{●●● L} WS^{●● L} WS^{● L} FWS^{● L} FWS ISOL ISOL

36 LAKSHADWEEP SCT WS^{●● L} WS^{●● L} FWS FWS 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 ^DDuststorm ^$Thunderstorm with Squall ^L Thunderstorm with Lightning ^#Thunderstorm with Hail

 -Cold Wave (Minimum temperature departure from Normal -4.5ÔC to -6.4ÔC) - -Severe Cold Wave (Minimum temperature departure from Norma ≤ -6.5ÔC)

⁺Heat Wave (Maximum temperature departure from Normal +4.5ÔC to +6.4ÔC) ⁺⁺ Severe Heat Wave (Maximum temperature departure from Normal ≥ +6.5ÔC)

(10)

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Table-1 (C)

METEOROLOGICAL SUB-DIVISIONWISE REALISED MINIMUM TEMPERATURE-2020

S.No MET.SUB-DIVISIONS 26 NOV 27 NOV 28 NOV 29 NOV 30 NOV 01 DEC 02 DEC

1 ANDAMAN & NICO.ISLANDS N N N N N N N

2 ARUNACHAL PRADESH N N N N N N N

3 ASSAM & MEGHALAYA N N N N N N AN

4 NAGA.MANI.MIZO.& TRIPURA N N AAN N N N N

5 SUB-HIM.W. BENG. & SIKKIM N N AN N N N N

6 GANGETIC WEST BENGAL N AN AN N N N N

7 ODISHA N AN AN N N N N

8 JHARKHAND N AAN AN N N N N

9 BIHAR BN AAN N N N N N

10 EAST UTTAR PRADESH BN N N N N N N

11 WEST UTTAR PRADESH N N N N BN N N

12 UTTARAKHAND N N N N N N N

13 HARYANA, CHD. & DELHI N N N N BN N N

14 PUNJAB N N N N N N N

15 HIMACHAL PRADESH N N N N N N N

16 JAMMU & KASHMIR AND LADAKH N N N N N N N

17 WEST RAJASTHAN N N N N N N N

18 EAST RAJASTHAN N AN N N N N N

19 WEST MADHYA PRADESH AN N N N N N N

20 EAST MADHYA PRADESH N AN N N N N N

21 GUJARAT REGION N N N N N AAN N

22 SAURASTRA & KUTCH N AN N N AAN N N

23 KONKAN & GOA N N N N N AAN N

24 MADHYA MAHARASHTRA N AAN N N N N N

25 MARATHAWADA N MAN N N MAN N N

26 VIDARBHA N N N N N AN N

27 CHHATTISGARH N AN AN N N N N

28 COASTAL ANDHRA PR. & YANAM N N N N N N N

29 TELANGANA N AN N N N N N

30 RAYALASEEMA N N N AN AN N N

31 TAMIL. PUDU. & KARAIKAL N N N N N N N

32 COASTAL KARNATAKA N AN AN N AAN N N

33 NORTH INTERIOR KARNATAKA N AN AN AN AAN N N

34 SOUTH INTERIOR KARNATAKA N N N AN AN N N

35 KERALA & MAHE AN N N N AN AN N

36 LAKSHADWEEP N AN AN N N AN N

Lowest Minimum Temperature (°C) 6.1 5.2 5.8 4.1 5.5 5.5 6.5

Station(/s) observed LMT Churk Pant Nagar Pant Nagar

& Churu Churu Churu Churu Sikar

Station(/s) lies in Met-Subdivision(/s) East UP Uttarakhand Uttarakhand

& West Raj. West Raj. West Raj. West Raj. East Raj.

LEGENDS:

BN - BELOW NORMAL (N-2)^OC AN - ABOVE NORMAL (N+2)^OC

N - NORMAL (N+1,N-1)ÔC ABN - APPRECIABLY BELOW NORMAL (N-3.1 to -4.9)ÔC AAN - APPRECIABLY ABOVE NORMAL (N+3.1 to +4.9)ÔC MBN - MARKEDLY BELOW NORMAL (N-5 AND BELOW )ÔC MAN - MARKEDLY ABOVE NORMAL (N+5 AND ABOVE)ÔC

 -Cold Wave (Minimum temperature departure from Normal -4.5ÔC to -6.4ÔC) - -Severe Cold Wave (Minimum temperature departure from Norma ≤ -6.5ÔC)

⁺Heat Wave (Maximum temperature departure from Normal +4.5ÔC to +6.4ÔC) ⁺⁺ Severe Heat Wave (Maximum temperature departure from Normal ≥ +6.5ÔC)