Severe Cyclonic storm ‘Amphan’ over southeast bay and adjoining southwest bay has intensified into a very severe cyclonic storm as it moved northwards. It is likely to intensify further and move in a north-northwesterly direction before turning towards Bangladesh. It may cross Bangladesh coast between Khulna-Chattogram during late night on Tuesday to evening of Wednesday, May 20.
According to the latest release by the National Weather Forecasting Centre/Cyclone Warning Division of the India Meteorological Department:
“The Very Severe Cyclonic Storm‘AMPHAN’ (pronounced as UM-PUN) over central parts of SouthBay of Bengal moved northwards with a speed of 09 kmph during past 06 hours and lay centred at 1730 hrs IST of today, the 17th May, 2020 over central parts of South Bay of Bengal near latitude 12.0°N and longitude 86.0°E, about 930 km south of Paradip (Odisha), 1080 km south-southwest of Digha (West Bengal) and 1200 km south-southwest of Khepupara (Bangladesh). It is very likely to intensify further into an Extremely Severe Cyclonic Storm during next 24 hours. It is very likely to move nearly northwards slowly during next 12 hours and then re-curve north-northeastwards and move fast across northwest Bay of Bengal and cross West Bengal – Bangladesh coasts between Digha (West Bengal) and Hatiya Islands (Bangladesh) during the Afternoon / Evening of 20th May 2020 as a Very Severe Cyclonic Storm.”
According to the special weather bulletin issued by the Bangladesh Met Department at 6 in the morning on Monday, the Very severe cyclonic storm now lies over the west central bay and adjoining Southwest bay.
The Met department in its bulletin in the morning said that the storm is about 1150 km south-southwest of Chattogram port, 1090 km south-southwest of Cox’s Bazar port, 1070 km south-southwest of Mongla port and 1050 km north-northwest of Payra port.
The bulletin said that maximum sustained speed within 74 km of the storm centre is 110 kilometres per hour (kmph) rising to 130 kmph in gusts. Sea will remain very high near the cyclone centre. The maritime ports of Chattogram, Cox’s Bazar, Mongla and Payra have been advised to keep the local warning signal 4 hosted.
All fishing boats and trawlers over north bay and deep sea have been advised to remain close to the coast and they have been advised not to venture into the deep sea.
(1) Heavy rainfall Warning:
Coastal Odisha is likely to experience light to moderate rainfall at many places with heavy falls at isolated places from 18th May evening. Rainfall at most places with heavy to very heavy rainfall at a few places over north coastal Odisha (Jagatsinghpur, Kendrapara, Jajpur, Bhadrak, Balasore& Mayurbhanj Districts) on 19thMay and isolated heavy rainfall over north coastal Odisha (Bhadrak, Balasore& Mayurbhanj Districts) on 20th May 2020.
Coastal districts of Gangetic West Bengal (East Medinipur, South & North 24 Parganas) are likely to experience light to moderate rainfall at many places with heavy falls at isolated places on 19th May. Rainfall at most places with heavy to very heavy falls at a few places & extremely heavy falls at isolated places likely over Gangetic West Bengal (east & west Medinipur, south & north 24 Parganas, Howrah, Hoogli, Kolkata and adjoining districts)on 20th May.
(2) Wind warning
West Bengal &Odisha
• Squally wind speed reaching 45 to 55 kmph gusting to 65 kmph is likely to commence along and off south Odisha coast from 18th evening, extend to along & off north Odisha coast from 19th morning and along and off West Bengal coast from 19th afternoon.
• The wind speed will gradually increase becoming gale wind speed reaching 75 to 85 kmph gusting to 95 kmph from 20th morning along and off north Odisha (Jagatsinghpur, Kendrapara, Bhadrak, Balasore and Mayurbhanj districts) and West Bengal (east & west Medinipur, south & north 24 Parganas, Howrah, Hoogli, Kolkata Districts). It will gradually increase thereafter becoming 110 to 120 kmph gusting to 135 kmph along & off the above mentioned districts of North Odisha and 120 to 140 kmph gusting to 155 kmph along & off the above districts of West Bengal from the afternoon of 20th May 2020.
• Squally wind speed reaching 55-65 kmph gusting to 75 kmph likely to prevail over Puri, Khordha, Cuttack, Jajpur districts of Odisha during 20th May 2020.
Deep Sea Area
• Gale wind speed reaching 125-135 gusting to 150 kmph is prevailing over southeast and adjoining southwest Bay of Bengal. It is likely to increase becoming 140-150 gusting to 165 kmph over southern parts of central Bay of Bengal by 18th morning, 170-180 gusting to 200 kmph over northern parts of central Bay of Bengal and adjoining North Bay of Bengal on 19th, and 155-165 gusting to 180 kmph over north Bay of Bengal during 20th May.
(3) Sea Condition
Sea condition will be Phenomenal over central parts of south Bay of Bengal and adjoining central Bay of Bengal during next 24 hours. It will become Phenomenal over southern parts of central Bay of Bengal from tonight, overnorthern parts of central Bay of Bengal and adjoining north Bay of Bengal on 19th May and over north Bay of Bengal on 20th May 2020.
(4) Fishermen Warning
• The fishermen are advised not to venture into south Bay of Bengalduring next 24 hours, to central Bay of Bengalduring 17th to 18thMay and into North Bay of Bengal during 18th to 20th May 2020.
• Also, fishermen are advised not to venture into north Bay of Bengalalong and off North Odisha, West Bengal and adjoining Bangladesh coasts during 18th to 20th May 2020.
(5)Storm Surge expected
• Storm Surge of about 3-4 meters above Astronomical Tide is likely to inundate low lying areas of south & north 24 Parganas and 2-3 meters over the low lying areas of East Medinipur District of West Bengal around the time of Landfall.
(6)Damage Expected and Action suggested
(a) West Bengal(east Medinipur, south & north 24 Parganas, Howrah, Hoogli, Kolkata districts)
• Extensive damage to all types of kutcha houses, some damage to old badly managed Pucca structures. Potential threat from flying objects.
• Extensive uprooting of communication and power poles.
• Disruption of rail/road link at several places.
• Extensive damage to standing crops, plantations, orchards.
• Blowing down of Palm and coconut trees.
• Uprooting of large bushy trees.
• Large boats and ships may get torn from their moorings.
Fishermen Warning & Action Suggested:
• Total suspension of fishing operations during 18th to 20th May 2020.
• Diversion or suspension of rail and road traffic.
• People in affected areas to remain indoors.Mobilise evacuation from Low lying areas.
• Movement in motor boats and small ships not advisable.
(b) Odisha (Jagatsinghpur,Kendrapara, Bhadrak, Balasore, Jajpur& Mayurbhanj)
• Total destruction of thatched houses/ extensive damage to kutcha houses. Some damage to pucca houses. Potential threat from flying objects.
• Bending/ uprooting of power and communication poles.
• Major damage to Kutcha and Pucca roads. Minor disruption of railways, overhead power lines and signalling systems.
• Widespread damage to standing crops, plantations, orchards, falling of green coconuts and tearing of palm fronds. Blowing down of bushy trees like mango.
• Small boats, country crafts may get detached from moorings.
Fishermen Warning & Action Suggested:
• Total suspension of fishing operations along & off Odisha coast during 18th to 20th May 2020.
• Judicious regulation of rail and road traffic.
• People in affected areas to remain indoors.
• Movement in motor boats and small ships unsafe.
• Small Fishing Boats may get detached and damaged from their moorings.
(With inputs from AIR & PIB)