KalimNews, Kalimpong, 25 May 2024 Depression over Eastcentral Bay of Bengal (Pre-Cyclone Watch for West Bengal Coast)
The Depression over central Bay of Bengal moved north-northeastwards with a speed of 16 kmph during past 06 hours and lay centered at 1130 hrs IST of today, the 24th May, 2024 over Eastcentral Bay of Bengal near latitude 15.8°N and longitude 88.9°E, about 700 km south-southwest of Khepupara (Bangladesh), about 660 km south-southeast of Sagar Islands (West Bengal) and 710 km south of Canning (West Bengal).
It is very likely to continue to move north-northeastwards and intensify into a Cyclonic Storm over eastcentral Bay of Bengal by 25th May morning.
Subsequently, it would move nearly northwards, intensify into a Severe Cyclonic Storm by 25th night. Continuing to move nearly northwards, it is very likely to cross Bangladesh and adjoining West Bengal coasts between Sagar Island and Khepupara around 26th May midnight as a Severe Cyclonic Storm.
Forecast: (South Bengal)
Light to moderate rainfall very likely at many places over the districts on 25th and moderate rainfall at most places over the districts during 26th to 27th May 2024.
Warning: South Bengal
Rainfall Warning
25-05-2024: (Yellow warning: be updated)
1. Heavy rain (07–11 cm) is likely to occur at one or two places over North and South 24 Parganas and East Midnapore districts.
26-05-2024: 1. (Red warning: take action)
Heavy (07–11 cm) to very heavy rain (12 – 20 cm) at a few places with extremely heavy rain (> 20 cm) at one or two places is very likely over North and South 24 Parganas districts.
2. (Orange warning: be prepared)
Heavy (07–11 cm) to very heavy rain (12 – 20 cm) is likely at one or two places over Kolkata, Howrah, Hooghly, Nadia and East Midnapore districts.
3. (Yellow warning: be updated)
Heavy rain (7-11 cm) at one or two places is likely over West Midnapore and East Bardhaman districts.
27-05-2024: 1. (Orange warning: be prepared)
Heavy (07–11 cm) to very heavy rain (12 – 20 cm) is likely at one or two places over North and South 24 Parganas, Kolkata, Nadia, Hooghly, Howrah and Murshidabad districts.
2. (Yellow warning: be updated)
Heavy rain (7-11 cm) is likely at one or two places over East and West Bardhaman, Birbhum, East and West Midnapore districts.
Wind Warning
25-05-2024:
Thunderstorm with gusty wind speed reaching 40 to 50 kmph likely over North and South 24 Parganas and East Midnapore districts and reaching 30 to 40 kmph likely over rest of the districts.
26-05-2024 to 27-05-2024:
Thunderstorm with wind speed reaching 100 to 110 kmph gusting to 120 kmph likely over South 24 Parganas; reaching 90 to 100 kmph gusting to 110 kmph likely over North 24 Parganas; reaching 80 to 90 kmph gusting to 100 kmph likely over Kolkata, Howrah, Nadia, East Midnapore; reaching 60 to 70 kmph gusting to 80 kmph likely over Hooghly, East Bardhaman; reaching 40-50 kmph gusting to 60 kmph likely over rest of the districts.
Forecast: (North Bengal)
Light to moderate rainfall very likely at most places over the districts during 27th to 28th May 2024.
Warning:
North Bengal
Rainfall Warning
27-05-2024:
1. (Orange warning: be prepared)
Heavy (07–11 cm) to very heavy rain (12 – 20 cm) is likely at one or two places over Malda and South Dinajpur districts.
2. (Yellow warning: be updated)
Heavy rain (7-11 cm) is likely at one or two places over North Dinajpur, Jalpaiguri and Alipurduar districts.
28-05-2024:
1. (Orange warning: be prepared)
Heavy (07–11 cm) to very heavy rain (12 – 20 cm) is likely at one or two places over Cooch Behar, Alipurduar and Jalpaiguri districts.
2. (Yellow warning: be updated)
Heavy rain (7-11 cm) is likely at one or two places over Darjeeling and Kalimpong districts.
Wind Warning for Sea:
Squally wind speed reaching 40-50 kmph gusting to 60 kmph is likely to prevail over central and adjoining South Bay of Bengal on 24th May. It would become 50-60 kmph gusting to 70 kmph over central Bay of Bengal on 24th May evening.
It would extend to adjoining areas of North Bay of Bengal with gale wind speed reaching 60-70 kmph gusting to 80 kmph from 25th May morning. It would further increase becoming 100-110 kmph gusting to 120 kmph over North Bay of Bengal from morning and 110-120 kmph gusting to 120 kmph from evening of 26th May. Gale wind speed reaching 70-80 kmph gusting to 90 kmph is likely over adjoining central Bay of Bengal from 26th morning for subsequent 24 hours.
Squally wind speed reaching 40-50 kmph gusting to 60 kmph is likely along & off Bangladesh, West Bengal and adjoining North Odisha coasts from 25th May evening It is likely to increase becoming gale wind speed reaching 60-70 kmph gusting to 80 kmph from morning of 26th May and 100-120 kmph gusting to 135 kmph along & off Bangladesh and adjoining West Bengal coasts from evening of 26th evening for subsequent 12 hours.
Sea condition:
Rough to very rough sea condition is likely over central and adjoining south Bay of Bengal on 24th May. It would become high over central Bay of Bengal on 25th May & 26th May and High to Very High over North Bay of Bengal from 25th evening till 27th May morning.
Rough to very rough sea condition is likely along & off Bangladesh, West Bengal and adjoining North Odisha coasts from 25th May evening and high to very high along & off Bangladesh and West Bengal coasts from 26th morning onwards till 27th May morning.
Storm surge:
Storm surge of about 1.0 meter above astronomical tide likely to inundate low lying areas of coastal West Bengal at the time of landfall.
Fishermen Warning (RED WARNING: TAKE ACTION)
Fishermen are advised not to venture into the sea from 24th May till 27th May.
Port Warning: –
Hoist Distant Cautionary Signal No. 1 at Hooghly ports along with Sectional Signal No. III at Sagar Island Port.
Damage Expected over Coastal and adjoining districts of South Bengal:
Major damage to thatched houses/ huts. Possibilities of damage to vulnerable structure.
Unattached metal sheets may fly.
Breaking of tree branches, uprooting of trees. Major damage to banana and papaya trees. Dead limbs may blow off from trees.
Damage to power and communication lines due to breaking of branches and uprooting of trees.
Damage to Kutcha and minor damage to Pucca roads due to heavy rain.
Damage to paddy crops, horticultural crops and orchards.
Inundation of low lying areas and localized flooding
Occasional reduction in visibility due to heavy rainfall.
Disruption of traffic due to water logging and squally winds
Action Suggested for South Bengal:
Total suspension of fishing operations.
Surface transport and shipping operations need to be regulated
Onshore & Offshore operation need to be regulated as per guidelines
Coastal hutment dwellers to be in safer places.
People in affected areas to remain indoors.
Avoid going to areas that face the water logging problems often.
Avoid staying in vulnerable structure.
Use Mausam/Damini app for real time weather alert.
Damage Expected over North Bengal:
Possible Impact
1. Damage to loose/unsecured structure.
2. Water lodging in low-lying areas.
3. Communication / Traffic disruption in urban areas.
4. Damage to standing crops and horticulture, Reduction of visibility.
Action suggested:
1. Take shelter in safe place.
2. Movement of traffic may be regulated judiciously.
3. Avoid taking shelter under tree/electric pole and avoid contact with water bodies.
4. Use Mausam/Damini app for real time weather alert.