·      West Bengal braces for pre-monsoon fury.! Heavy rains, floods and storms until Saturday. Stay safe.! #PreMonsoonRain #KolkataRains #IMDAlert.

·      West Bengal faces heavy pre-monsoon rain until May 31st, 2025 with IMD alerts for floods, storms and landslides in Kolkata and North Bengal. Stay updated.! #KolkataRains #Monsoon2025

·      The India Meteorological Department’s updates confirm the low-pressure system in the Bay of Bengal and the early monsoon onset in North Bengal, driving search interest in “IMD Alert” and “Monsoon 2025.

West Bengal is gearing up for a turbulent week as a cyclonic circulation in the Bay of Bengal intensifies into a low-pressure system, unleashing pre-monsoon rains across the state. The India Meteorological Department (@IMD) has issued warnings for heavy to extremely heavy rainfall, thunderstorms and gusty winds until Saturday, May 31st, 2025. With the southwest monsoon knocking on North Bengal’s doors, coastal areas face rough seas and fishermen have been barred from venturing into deep waters. Here’s everything you need to know about this weather event and how to stay safe.

Details & Context

A cyclonic circulation over the northwest Bay of Bengal near the Odisha coast has transformed into a low-pressure area, as confirmed by the India Meteorological Department (@IMD). This system is expected to intensify into a well-marked low-pressure area within the next 48 hours, moving slowly northward while drawing energy from the sea’s moisture. The result.? Widespread pre-monsoon rainfall across West Bengal with heavy to extremely heavy downpours forecast for Thursday and Friday, May 29th-30th, 2025.

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The southwest monsoon is also advancing, set to enter North Bengal within the next two to three days. Favourable conditions are pushing the monsoon winds into Assam, Meghalaya, Sikkim and parts of North Bengal signalling the official onset of the rainy season. However, the immediate concern is the pre-monsoon deluge which could trigger landslides in hilly areas, flooding in low-lying regions and crop damage across multiple districts.

·      Key Weather Updates

o   Wednesday, May 28th, 2025: Coastal districts like North and South 24 Parganas, Howrah, East and West Medinipur face heavy rainfall with gusty winds of 30-40 km/h. Scattered thunderstorms are expected state wide.

o   Thursday, May 29th, 2025: Very heavy rainfall (up to 200 mm) is likely in seven districts: East and West Bardhaman, East and West Medinipur, Bankura, South 24 Parganas and Hooghly. Gusty winds of 40-50 km/h are forecast for coastal areas.

o   Friday, May 30th, 2025: Extremely heavy rainfall warnings for ten South Bengal districts including East and West Bardhaman, East and West Medinipur, Jhargram, Bankura, Birbhum, Murshidabad, South 24 Parganas and Hooghly. Kolkata and other districts may see 70-110 mm of rain with winds of 30-40 km/h.

o   Saturday, May 31st, 2025: Heavy rainfall persists in Birbhum and Murshidabad with North Bengal districts like Darjeeling, Jalpaiguri and Alipurduar facing up to 200 mm of rain, raising concerns about landslides and flooding.

o   Sunday, June 1st, 2025: Scattered heavy rainfall continues in North Bengal, particularly in Darjeeling, Kalimpong and Alipurduar.

Quotes

·      @IMD officials have urged residents to stay vigilant. “The low-pressure system is gaining strength and will bring intense rainfall, especially in coastal and northern districts. We advise avoiding unnecessary travel and staying updated with weather alerts,” said an @IMD spokesperson in Kolkata.

·      Local farmer Rabin Mondal from South 24 Parganas expressed concern: “Heavy rains at this time could damage our crops. We’re hoping for quick relief measures from the government.”

Additional Information

·      Fishermen Alert: The @IMD has barred fishermen from venturing into the north Bay of Bengal from Wednesday, May 28th to Saturday, May 31st, due to rough seas and gusty winds of 35-55 km/h. Those already at sea are advised to return to the coast by Wednesday night.

·      Monsoon Arrival: The southwest monsoon is expected to reach North Bengal within 48-72 hours, covering districts like Darjeeling, Jalpaiguri and Cooch Behar. Assam and Meghalaya are already under its influence.

·      Orange Alert Issued: Multiple districts including Jalpaiguri, Alipurduar and Cooch Behar are under an orange alert for heavy to very heavy rainfall, signalling potential disruptions.

Recent posts on X highlight public concern about the weather. Users have shared images of waterlogged streets in Kolkata and warnings about landslides in Darjeeling, urging residents to stock up on essentials. Web searches confirm similar alerts from sources like the @TimesofIndia and @AnandabazarPatrika, emphasising the risk of urban flooding and crop damage.

Read More: East Bardhaman Memari Station Death Mystery | Caretaker’s Bloody Body Found in Locked Toilet

Impact Analysis

The pre-monsoon rainfall, combined with the advancing monsoon, poses significant risks

·      Landslides: Hilly areas in Darjeeling, Kalimpong and Alipurduar are at risk of landslides due to heavy rainfall exceeding 200 mm.

·      Flooding: Low-lying areas in South Bengal, particularly South 24 Parganas and East Medinipur, may face flooding. Urban centers like Kolkata could see waterlogging, disrupting daily life.

·      Crop Damage: Farmers in districts like Birbhum and Murshidabad fear losses due to excessive rainfall which could affect pre-monsoon crops.

·      River Levels: Rising water levels in rivers across North Bengal could lead to flash floods, especially in Jalpaiguri and Alipurduar.

·      Transportation: Gusty winds and heavy rain may disrupt road and rail connectivity, particularly in coastal and hilly regions.

Conclusion

West Bengal is on high alert as a powerful low-pressure system in the Bay of Bengal fuels intense pre-monsoon rainfall. With the southwest monsoon set to arrive in North Bengal, the state faces a double challenge of heavy rains and potential natural disasters. Residents are urged to stay indoors, avoid flood-prone areas, and follow @IMD updates closely. The coming days will test the state’s preparedness but timely action and awareness can minimise risks.

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