Government of India India Meteorological
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GOVERNMENT OF INDIA INDIA METEOROLOGICAL DEPARTMENT REGIONAL METEOROLOGICAL CENTRE, ALIPORE, KOLKATA-700027 MID-DAY WEATHER BULLETIN FOR WEST BENGAL, SIKKIM, ODISHA, BIHAR, JHARKHAND AND THE ANDAMAN & NICOBAR ISLANDS Summary of Observation Recorded at 0830 hrs IST of Friday 24/09/2021 Southwest monsoon been subdued over Bihar. Heavy to Very Heavy Rainfall occurred at one or two places over Nicobar Islands. Rainfall occurred at most places over Andaman & Nicobar Islands; at many places over Gangetic West Bengal & Odisha; at a few places over Jharkhand, Sikkim & Sub Himalayan West Bengal and at one or two places over Bihar. CHIEF AMOUNTS OF RAINFALL RECEIVED SO FAR IN CM RECORDED AT 0830 HRS OF Friday 24/09/2021 Maya Bandar -12; Garhwa -6; Kotpad, Bhabhua, Mohania -5 each; IAF Carnicobar, Gangtok, Nalhati, Rajnagar, Suri (CWC), Jeypore, Kudra, Chenari -4 each; Car Nicobar, Long Island, Bhuban, Jenapur, Ghatagaon, Tiring, Nawapara, Adhwara, Buxar, Bagaha, Sikatia -3 each; Alipore, Midnapore, Midnapore(CWC), Bolangir, Sukinda, Madanpur Rampur, Swam-patna, Borigumma, Balimundali, Thakurmunda, Dunguripalli, Narhat, Indrapuri, Nauhatta -2 each; Mangan-1. SYNOPTIC SITUATION Friday 24/09/2021 Under the influence of the cyclonic circulation, a Low Pressure Area has formed over eastcentral Bay of Bengal and neighborhood. It is very likely to become more marked during next 12 hours. It is likely to move westnorthwestwards towards Odisha coast during next 48 hours. The Monsoon trough at mean sea level now passes through Jaisalmer, Ajmer, Nowgong, Daltonganj, Jamshedpur, Digha and thence southeastwards to Eastcentral Bay of Bengal. The cyclonic circulation over south Chhattisgarh & neighbourhood now lies over northeast Madhya Pradesh & adjoining south Uttar Pradesh and extends upto 4.5 km above mean sea level. INFERENCE FOR BAY OF BENGAL AND ANDAMAN SEA VALID TILL MID NIGHT OF Friday 24/09/2021 A Low Pressure Area has formed over East Central Bay of Bengal and neighborhood. It is very likely to become more marked during next 12 hours. It is likely to move West-northwestwards towards Odisha coast during next 48 hours. Yesterday’s trough at Mean Sea Level from North West Bay of Bengal to East Central Bay of Bengal persists. Southwest Monsoon moderate to strong over South West Bay of Bengal & North East Bay of Bengal; Moderate over South East Bay of Bengal & Andaman Sea; weak to moderate over West Central Bay of Bengal. Weather Forecast for Next Five Days Friday 24 Sep(Day-1) Rain or thundershowers very likely to occur at most places over Andaman & Nicobar Islands; likely to occur at a few places over Bihar, Odisha, Sikkim and the districts of West Bengal, at one or two places over Jharkhand. Rise in day temperature by 2-3°C during the next 2-3 days, fall thereafter. Saturday 25 Sep(Day-2) Rain or thundershowers very likely to occur at most places over Andaman & Nicobar Islands; likely to occur at a few places over Bihar, Jharkhand, Odisha, Sikkim and the districts of West Bengal. Sunday 26 Sep(Day-3) Rain or thundershowers very likely to occur at most places over Odisha, Andaman & Nicobar Islands and South 24 Parganas, East Midnapore, West Midnapore & Jhargram districts of Gangetic West Bengal; likely to occur at a few places over Bihar, Jharkhand, Sikkim, the districts of Sub Himalayan West Bengal and the rest of the districts of Gangetic West Bengal. Monday 27 Sep(Day-4) Rain or thundershowers very likely to occur at most places over Odisha, Andaman & Nicobar Islands and Howrah, Hooghly, North 24 Parganas, South 24 Parganas, East Midnapore, West Midnapore & Jhargram districts of Gangetic West Bengal; at many places over Sikkim, Jharkhand, rest of the districts of Gangetic West Bengal and Darjeeling, Jalpaiguri, Kalimpong, Coochbehar & Alipurduar districts of Sub Himalayan West Bengal; likely to occur at a few places over Bihar and rest of the districts of Sub-Himalayan West Bengal. Tuesday 28 Sep(Day-5) Rain or thundershowers very likely to occur at most places over Andaman & Nicobar Islands and Howrah, Hooghly, North 24 Parganas, South 24 Parganas, East Midnapore, West Midnapore & Jhargram districts of Gangetic West Bengal; at many places over Sikkim, Odisha, Jharkhand, the districts of Sub Himalayan West Bengal and rest of the districts of Gangetic West Bengal; likely to occur at a few places over Bihar. Weather Warning for Next Five Days Friday 24 Sep(Day-1) 1) Heavy rain (7-11cm) likely to occur at one or two places over Andaman & Nicobar Islands. 2) Thunderstorms with lightning likely to occur at one or two places over Jharkhand, Odisha and all the districts of Gangetic West Bengal. Saturday 25 Sep(Day-2) 1) Heavy rain (7-11cm) likely to occur at one or two places over Odisha, Andaman & Nicobar Islands. 2) Thunderstorms with lightning likely to occur at one or two places over Jharkhand, Odisha and all the districts of Gangetic West Bengal. Sunday 26 Sep(Day-3) 1) Heavy to Very heavy rain (7-20cm) likely to occur at one or two places over Odisha. 2) Heavy rain (7-11cm) likely to occur at one or two places over Andaman & Nicobar Islands. 3)Thunderstorms with lightning likely to occur at one or two places over Jharkhand and all the districts of Gangetic West Bengal. Monday 27 Sep(Day-4) 1) Heavy to Very heavy rain (7-20cm) likely to occur at one or two places over Odisha. 2) Heavy rain (7-11cm) likely to occur at one or two places over Andaman & Nicobar Islands and South 24 Parganas, East Midnapore & West Midnapore districts of Gangetic West Bengal. Tuesday 28 Sep(Day-5) Heavy rain (7-11cm) likely to occur at one or two places over Odisha and North 24 Parganas, South 24 Parganas, Bankura, Purulia, Jhargram, East Midnapore & West Midnapore districts of Gangetic West Bengal. Forecast for Kolkata and Neighbourhood for Next 7 Days Friday 24 Sep Partly cloudy sky. Rain or thundershowers likely to occur in some areas. Maximum and Minimum Temperatures most likely be around 33°C and 27°C respectively. Saturday 25 Sep Generally cloudy sky with one or two spells of rain or thundershowers. Maximum and Minimum Temperatures most likely be around 33°C and 27°C respectively. Sunday 26 Sep Generally cloudy sky with one or two spells of rain or thundershowers. Maximum and Minimum Temperatures most likely be around 32°C and 27°C respectively. Monday 27 Sep Generally cloudy sky with a few spells of rain or thundershowers Maximum and Minimum Temperatures most likely be around 31°C and 26°C respectively. Tuesday 28 Sep Generally cloudy sky with a few spells of rain or thundershowers. Maximum and Minimum Temperatures most likely be around 30°C and 26°C respectively. Wednesday 29 Sep Partly cloudy sky with possibility of rain/thundershowers. Maximum and Minimum Temperatures most likely be around 29°C and 26°C respectively. Thursday 30 Sep Partly cloudy sky with possibility of rain/thundershowers. Maximum and Minimum Temperatures most likely be around 30°C and 27°C respectively. Weather Warning for Fisherman West Bengal Coast for next 5 days commencing from 24/09/2021 Due to formation of Low pressure area over Eastcentral Bay of Bengal and neighbourhood, wind speed is likely to exceed 45 kmph from 25th September. Fishermen are advised not to venture into deep sea from 25th September 2021 onwards till further notice. Those who are in the deep sea are advised to return to the coast by night of 24th September 2021. Weather Warning for Fisherman Andamand & Nicober Coast for next 5 days commencing from 24/09/2021 Due to squally weather wind speed is likely to exceed 45 kmph,fishermen are advised not to venture into the sea during 24th to 27th September 2021. Farmer Forecast for Farmer for Next Three Days Friday 24 Sep(Day-1) Light to moderate rain with thunder likely to occur over the districts of West Bengal. Rise in day temperature by 2-3°C during the next 2-3 days, fall thereafter. Saturday 25 Sep(Day-2) Light to moderate rain with thunder likely to occur over the districts of West Bengal. Sunday 26 Sep(Day-3) Light to moderate rain with thunder very likely to occur over South 24 Parganas, East Midnapore, West Midnapore & Jhargram districts of Gangetic West Bengal. Light to moderate rain with thunder likely to occur over the rest of the districts of West Bengal. Farmer Warning for Farmer for Next Three Days Friday 24 Sep(Day-1) Thunderstorms with lightning likely to occur at one or two places over all the districts of Gangetic West Bengal. Saturday 25 Sep(Day-2) Thunderstorms with lightning likely to occur at one or two places over all the districts of Gangetic West Bengal. Sunday 26 Sep(Day-3) Thunderstorms with lightning likely to occur at one or two places over all the districts of Gangetic West Bengal. Weather Warning for DVC Area for next 24 Hrs NIL. Outlook for Subsequent Two days : Little Change. TOO: 13.15 IST ,24/09/2021 Dr. G. K. DAS SCIENTIST-E , KRITE UPA MAHANIRDESHAK Regional Meteorological Centre Kolkata NB: *Forecast and Warning for any day is valid from 0830hrs IST to 0830 hrs IST of next day. For more information kindly visit www.imdkolkata.gov.in KOLKATA: OBSERVATIONS RECORDED AT 0830 HOURS IST ON 24-9-2021 TEMPERATURE(C) RELATIVE HUMIDITY (%) RAINFALL Station Name ALP DD Station Name ALP DD Station Name ALP DD Max. Past 24 hrs. 32 33 At 0830 hrs. IST 94 79 Past 24 hrs (mm) 17 00 Dep. from normal -00 -00 Dep. from normal 12 -03 Min. Past 24 hrs. 26 26 At 1730 hrs I.S.T.