North Bengal is likely to see several more days of rain, including heavy to very heavy showers in Jalpaiguri and Alipurduar on Wednesday, while rainfall is expected to ease across most of South Bengal, according to the Alipore weather office. An orange alert has been issued for the two northern districts, with strong winds also possible.
The forecast is being driven by an active monsoon trough and a low-pressure area that had formed over the northwest Bay of Bengal. The system has moved west-northwest towards the Andhra Pradesh and Odisha coasts. An associated cyclonic circulation is located at an altitude of 7.6 kilometres above sea level.
A trough extending from Rajasthan to the circulation is passing over Madhya Pradesh and Chhattisgarh. The monsoon trough remains active over Rajasthan, Madhya Pradesh and Chhattisgarh, conditions that are expected to support continued rain and thunderstorms in North Bengal.
Darjeeling, Jalpaiguri, Kalimpong and Cooch Behar are expected to receive rain from Monday through Thursday, with heavy showers possible in some areas. Jalpaiguri and Alipurduar face the possibility of heavy to very heavy rain on Wednesday, accompanied by gusty winds. The orange alert signals the need for heightened attention to weather-related disruption in those districts.
The forecast also includes warnings for thunderstorms and strong winds in North Dinajpur, South Dinajpur and Malda, although heavy rain is not currently expected in those districts. The remaining districts of South Bengal are likely to experience comparatively drier weather over the next few days, with isolated spells of rain possible.
Six districts in South Bengal—Purulia, Bankura, Purba Bardhaman, Paschim Bardhaman, Birbhum and Murshidabad—may receive light to moderate rain with thunderstorms on Monday. Wind speeds in these districts could reach 30 to 40 kilometres per hour. No significant rainfall is expected elsewhere in the southern part of the state, including Kolkata.
The weather office said Kolkata and most other districts would remain generally dry for the next few days, although one or two brief spells of rain could occur. Kolkata recorded a minimum temperature of 25.2 degrees Celsius on Monday morning, 1.2 degrees below normal. The city’s maximum temperature on Sunday was 31.6 degrees Celsius, also 1.2 degrees below normal.
The immediate forecast therefore presents a divided weather pattern across West Bengal: persistent rain and weather warnings in the north, alongside a reduction in rainfall across the south. The orange alert for Jalpaiguri and Alipurduar remains the next significant weather milestone in the forecast period.
