Super Cyclonic Storm ‘AMPHAN’ lay as a Deep Depression over Bangladesh

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The Super Cyclonic Storm ‘AMPHAN’ (pronounced as UM-PUN) movednorth-northeastwards as a Cyclonic Storm with a speed of 06 kmph during past 06 hours, further weakened into a Deep Depressionand lay centered at 1130 hrs IST of today, the 21st May 2020 overBangladeshnear Lat. 25.0°N and Long. 89.6°Eabout  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 06 hours and further into a well marked low thereafter.

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 very heavy &extremely heavy falls (≥20 cm) at isolated places very likely on 21st May, 2020.

Arunachal Pradesh: Light to moderate rainfall at most places with heavy to very heavy falls at isolated places very likely on 21st 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 20th May.

  • The chief amounts of rainfall (in cm) realised on 20th May are: Alipore-24, DumDum-20 and Haldia-8.
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[Kindly visit www.rsmcnewdelhi.imd.gov.in and www.mausam.imd.gov.in for updates on the system.

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