Super Cyclonic Storm ‘AMPHAN’ crossed West Bengal coast yesterday gradually weakening into a deep depression over Bangladesh

Yesterday’s extremely severe cyclonic storm ‘AMPHAN’ moved north-northeastwards and crossed West Bengal-Bangladesh coasts between Digha (West Bengal) and Hatiya (Bangladesh) near Sundarbans between 1530 and 1730 hrs IST of 20^th May, 2020 as a very severe cyclonic storm with a wind speed of 155-165 kmph gusting to 185 kmph. Moving east-northeastwards, it weakened into a severe cyclonic storm in the same night (2330 hrs IST) over Bangladesh and adjoining West Bengal. It further weakened into a cyclonic storm over Bangladesh in the early hours (0230 hrs IST) of today, the 21^st May 2020. Subsequently, it weakened into a deep depression and lay centered at 1130 hrs IST of today, the 21^st May, 2020 over Bangladesh near latitude 25.0°N and longitude 89.6°E about  300 km east-northeast of Kolkata, 110 km south-southeast of Dhubri and 80 km south-southeast of Rangpur (Bangladesh).          

  It is very likely to continue to move north-northeastwards and weaken further into a Depression during next 03 hours and into a well marked low pressure area during subsequent 12 hours.

Forecast track and intensity are given in the following table:

Date/Time(IST)	Position(Lat. 0N/ long. 0E)	Maximum sustained surface wind speed (Kmph)	Category of cyclonic disturbance
21.05.20/1130	25.0/89.6	50-60 gusting to 70	Deep Depression
21.05.20/1730	26.2/90.3	30-40 gusting to 50	Depression

 

(1) Heavy rainfall Warning:

Assam & Meghalaya: Light to moderate rainfall at most places with heavy to extremely heavy falls (≥ 20 cm) at isolated places very likely on 21^st May, 2020.

Arunachal Pradesh: Light to moderate rainfall at most places with heavy to very heavy falls at isolated places very likely on 21^st May, 2020.

(2) Wind warning

Squally wind speed reaching 50 to 60 kmph gusting to 70 kmph very likely over Western Assam & Western Meghalaya till evening and reduce gradually thereafter.

 

(3) Realised weather over West Bengal

• Maximum sustained wind speed recorded:

Kolkata (Dum Dum) reported 130 kmph at 1855 hrs IST and Kolkata (Alipore) 112 kmph at 1752 hrs IST of 20^th May.

The chief amounts of rainfall (in cm) realised on 20^th May are: Alipore-24, DumDum-20 and Haldia-8.

[Kindly visit www.rsmcnewdelhi.imd.gov.in and www.mausam.imd.gov.in for updates on the system.

(Please see details and UPDATED graphics in this link here)