The Shravan month has just begun and is expected to bring another spell of widespread rainfall across West Bengal, with the weather set to turn more active through the week. A cyclonic circulation over the north Bay of Bengal is likely to intensify into a low-pressure area within the next few hours, according to the latest weather updates.
The developing system is in its final stage of formation near the West Bengal-Bangladesh coast, as indicated by the latest satellite imagery. This will be the second low-pressure system to form over the Bay of Bengal in just six days.
The combined influence of the low-pressure system and an active monsoon trough is expected to trigger heavy to very heavy rainfall across several districts of the state.
Low-pressure system likely over north Bay of Bengal
Meteorologists expect the cyclonic circulation over the north Bay of Bengal to strengthen into a low-pressure area shortly. Satellite observations suggest that the system is nearing formation over areas adjoining the West Bengal-Bangladesh coastline.
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With monsoon conditions remaining favourable, the weather pattern is expected to support widespread rainfall over both south and north Bengal during the coming days.
West Bengal weather forecast for the next three days
Wednesday
An orange alert for heavy rainfall has been issued for:
North 24 Parganas
South 24 Parganas
East Midnapore
West Midnapore
Jhargram
Darjeeling
Jalpaiguri
Thursday
A red alert for very heavy rainfall has been issued in:
South 24 Parganas
East Midnapore
West Midnapore
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An orange alert for heavy rainfall is also in place for:
Kolkata
Howrah
Hooghly
North 24 Parganas
Jhargram
Purulia
Bankura
Paschim Bardhaman
Darjeeling
Jalpaiguri
Friday
An orange alert for heavy rainfall has been issued for:
Purulia
Bankura
Paschim Bardhaman
Birbhum
Darjeeling
Kalimpong
Jalpaiguri
Alipurduar
Cooch Behar
A yellow alert for moderate rain with isolated heavy spells has been issued for:
Kolkata
Howrah
Hooghly
Nadia
Murshidabad
Rain likely to ease in south Bengal before shifting north
According to the weather department’s forecast, rainfall over south Bengal may gradually reduce after Saturday afternoon. However, another spell of rain is expected to begin across north Bengal from Saturday evening or night.
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The intensity of rainfall is likely to increase significantly across the five northernmost districts from Sunday morning. A red alert for very heavy to extremely heavy rainfall has been issued from Sunday afternoon until Monday evening for:
Darjeeling
Kalimpong
Jalpaiguri
Cooch Behar
Alipurduar
Residents in the affected districts are advised to keep track of the latest weather updates as the low-pressure system develops and rainfall activity intensifies across the state.
FAQs:
Why is West Bengal receiving heavy rainfall this week?
Heavy rain is expected due to a Bay of Bengal low-pressure system and an active monsoon trough affecting the state.
Which districts are under IMD red alert for heavy rain in West Bengal?
IMD has issued red alerts for South 24 Parganas, East Midnapore and West Midnapore on Thursday, with north Bengal districts under red alert later in the week.
