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Cyclonic Storm ‘Burevi’ over southwest Bay of Bengal (Cyclone Alert for South Tamilnadu and South Kerala coasts: Yellow Message)

According to the Cyclone Warning Division of the India Meteorological Department (IMD):

The Deep Depression over southwest Bay of Bengal moved west-northwestwards with a speed of 09 kmph during past six hours, intensified into Cyclonic Storm ‘Burevi’ and lay centered at 1730 hrs IST of today, the 01st December 2020 over southwest Bay of Bengal near Lat. 7.9° N and Long. 84.8°E, about 400 km east-southeast of Trincomalee (Sri Lanka) and 800 km east-southeast of Kanniyakumari (India).

It is very likely to intensify further during next 12 hours. It is very likely to move west-northwestwards and cross Sri Lanka coast between latitude 7.50N and 9.00N, close to Trincomalee during evening/night of 2nd December as a Cyclonic Storm with a wind speed of 75-85 kmph gusting to 95 kmph. It is very likely to move nearly westwards thereafter, emerge into Gulf of Mannar and adjoining Comorin area on 3rd December morning. It would then move nearly west-southwestwards and cross south Tamilnadu coast between Kanniyakumari and Pamban around early morning of 4th December.

Forecast track and intensity are given below:

Date/Time(IST)
Position
(Lat. 0N/ long. 0E)
Maximum sustained surface 
wind speed (Kmph)
Category of cyclonic disturbance
01.12.20/1730
7.9/84.8
60-70 gusting to 75
Cyclonic Storm
01.12.20/2330
8.1/84.2
65-75 gusting to 85
Cyclonic Storm
02.12.20/0530
8.3/83.4
70-80 gusting to 90
Cyclonic Storm
02.12.20/1130
8.5/82.6
75-85 gusting to 95
Cyclonic Storm
02.12.20/1730
8.7/81.3
75-85 gusting to 95
Cyclonic Storm
03.12.20/0530
8.8/80.2
65-75 gusting to 85
Cyclonic Storm
03.12.20/1730
8.8/79.3
70-80 gusting to 90
Cyclonic Storm
04.12.20/0530
8.6/78.2
70-80 gusting to 90
Cyclonic Storm
04.12.20/1730
8.0/77.1
65-75 gusting to 85
Cyclonic Storm

Warnings:

(i) Rainfall

  • Heavy to very heavy rainfall at a few places with isolated Extremely heavy falls very likely over south Tamilnadu (Kanniyakumari, Tirunelveli, Thoothukudi, Tenkasi, Ramanathapuram and Sivagangai) on 2nd and 3rd December, 2020; over south Kerala (Thiruvananthapuram, Kollam, Pathanamthitta and Alappuzah) on 3rd December and isolated heavy to very heavy rainfall likely over south Tamilnadu on 2nd & 4th December 2020 and south Kerala on 3rd & 4th December, 2020.
  • Heavy to very heavy rainfall at isolated places very likely over north Tamilnadu, Puducherry, Mahe & Karaikal and north Kerala on 2nd & 3rd December, isolated heavy rainfall on 4th December and isolated heavy rainfall over coastal Tamilnadu on 1st December, 2020.
Sub-Divisions 01 Dec 2020* 02 Dec 2020* 03 Dec 2020* 04 Dec 2020*
South Tamilnadu Rainfall at many places with heavy  rainfall at  isolated places Rainfall at most places with heavy to very heavy rainfall at  few places and extremely heavy fall at  isolated places  Rainfall at most places with heavy to very heavy rainfall at  few places and extremely heavy fall at  isolated places  Rainfall at many places with heavy to very heavy  rainfall at  isolated places
North Tamilnadu, Puducherry & Karaikal Rainfall at a few places with heavy rainfall at  isolated places Rainfall at many places with heavy to very heavy  rainfall at  isolated places Rainfall at many places with heavy to very heavy  rainfall at  isolated places Rainfall at many places with heavy fall at  isolated places 
 

South Kerala

Rainfall at many places with heavy  rainfall at  isolated places Rainfall at most places with heavy to very heavy rainfall at  isolated places  Rainfall at most places with heavy to very heavy rainfall at  few places and extremely heavy fall at  isolated places  Rainfall at many places with heavy to very heavy  rainfall at  isolated places
 

North Kerala & Mahe

Rainfall at many places with  heavy rainfall at  isolated places Rainfall at many places with heavy to very heavy  rainfall at  isolated places Rainfall at most places with heavy to very heavy  rainfall  at  isolated places Rainfall at a few places with heavy fall at  isolated places 
South Coastal Andhra Pradesh Rainfall  at isolated places Rainfall  at a few places with heavy rainfall at isolated places Rainfall  at a few places with heavy rainfall at isolated places Rainfall  at a few places
Lakshadweep Rainfall  at a few places Rainfall  at most places Rainfall  at most places with heavy to very falls at isolated places Rainfall  at most places with heavy to very falls at isolated places
    • Heavy rainfall at isolated places very likely over south Coastal Andhra Pradesh on 2nd & 03rd December and over Lakshadweep on 03rd & 4th December, 2020.

(ii) Wind warning

  • Squally wind speed reaching 60-70 kmph gusting to 80 kmph very likely over southwest and adjoining Southeast Bay of Bengal during next 12 hours.
  • It would gradually increase and becoming 70-80 kmph gusting to 90 kmph over southwest Bay of Bengal, along & off Sri Lanka coast from morning to night of 2nd December and decrease thereafter.
  • Squally wind speed reaching 45-55 kmph gusting to 65 kmph very likely over Comorin Area, Gulf of Mannar and along and off south Tamilnadu coast (Kanniyakumari, Tirunelveli, Thoothukudi and Ramanathapuram districts) and south Kerala coast (Thiruvananthapuram, Kollam, Pathanamthitta and Alappuzah districts) from 2nd December forenoon. It will gradually increase becoming 55-65 kmph gusting to 75 kmph from 2nd December evening and 70-80 kmph gusting to 90 kmph from evening of 3rd December for subsequent 12 hours and decrease therafter.
  • Squally wind speed reaching 45-55 kmph gusting to 65 kmph very likely over Lakshadweep-Maldives area and adjoining southeast Arabian Sea from 3rd December morning for next 48 hours.

 (iii) Sea condition

  • Sea conditions is very rough to high over southwest and adjoining Southeast Bay of Bengal and along & off east Sri Lanka coast and the same will continue till night of 2nd December and gradually improve thereafter.
  • It will be rough to very rough over Comorin Area, Gulf of Mannar & along & off south Tamilnadu-Kerala and west Sri Lanka coast   on 2nd and very rough to high on 3rd and 4th  December.
  • Sea condition will be rough to very rough over Lakshadweep-Maldives area and adjoining southeast Arabian Sea during 3rd – 4th December.

(iv) Fishermen warning

  • Total suspension of fishing operation during 1st December to 4th December over the areas as mentioned below.
  • Fishermen are advised not to venture into southeast Bay of Bengal during 1st December, southwest Bay of Bengal and along & off east Sri Lanka coast  from 1st to 3rd December; Comorin Area, Gulf of Mannar and south Tamilnadu-Kerala and west Sri Lanka coasts from 2nd to 4th December,  over Lakshadweep-Maldives area & adjoining southeast Arabian Sea from 3rd to 4th December.   
  • Fishermen out at Sea are advised to return to the coast.

The system is under continuous surveillance and the concerned state governments are being informed regularly.

For details, Click here for graphics:

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