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Thunderstorm Warning | Kolkata Weather Alert 2025, Storms and Heavy Rain Hit West Bengal

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Kolkata and West Bengal are bracing for stormy weather from April 27th to April 29th, 2025 with thunderstorms, heavy rain and gusty winds forecast across South and North Bengal. The mercury has dropped significantly in Kolkata, offering relief from the heat but raising concerns about potential disasters like hailstorms and lightning. An orange alert has been issued for eight districts including North 24 Parganas, Darjeeling and Jalpaiguri. Here’s everything you need to know about this weather crisis and how to stay safe.


Details & Context
Kolkata woke up to cooler weather on April 27th, 2025 as storms and rain brought the temperature down from 34.2°C to a minimum of 23.6°C. The India Meteorological Department (IMD) has forecast light to moderate rain with thunderstorms and gusty winds of 30-60 km/h across South Bengal including Kolkata from Sunday to Tuesday. Some areas may see Kalbaisakhi-like conditions—severe storms with hail and lightning. An orange alert, signalling high risk has been issued for five South Bengal districts on Sunday: North 24 Parganas, East Bardhaman, Birbhum, Murshidabad and Nadia. These areas could face winds up to 60 km/h and heavy rain.


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On Monday, the orange alert shifts to six districts: Hooghly, West Medinipur, Bankura, Purulia, East Bardhaman and West Bardhaman with similar stormy conditions. By Tuesday, all South Bengal districts are expected to experience thunderstorms and rain. In North Bengal, heavy rainfall of 70-110 mm is forecast for Darjeeling, Jalpaiguri and Alipurduar on Sunday, prompting an orange alert. Other North Bengal districts including North Dinajpur and Malda will see storms and winds of 40-60 km/h through Tuesday.

X posts reflect public concern, with users like @BengalWeather tweeting, “Kolkata’s temperature drop is a relief but the orange alert for 8 districts means trouble. Stay safe from lightning and floods.!” Another user, @IMDUpdates, warned, “Kalbaisakhi storms could disrupt South Bengal. Avoid open fields during lightning.” The IMD attributes this weather to cyclonic circulations over Rajasthan, Northeast Assam, Bihar and North Bengal, coupled with a north-south trough from Vidarbha to the Gulf of Mannar.


Quotes

·      IMD Official: “Expect light to moderate rain with thunderstorms across South Bengal. Winds may reach 60 km/h in some districts, with a risk of hail and lightning.”

·      Kolkata Resident (@CityKolkata): “The cooler weather is nice but these storms are scary. Lightning and strong winds could cause damage.”

·      North Bengal Local (@DarjeelingVibes): “Heavy rain in Darjeeling and Jalpaiguri could lead to landslides. We need better warnings and safety measures.”

·      Weather Blogger (@BengalStorms): “Kalbaisakhi is no joke. Stay indoors during storms and avoid waterlogged areas to stay safe.”

Date

Cloud

Rain

Sun

Suggested Photo

April 27th

Mostly cloudy, overcast in North Bengal

Heavy rain in Darjeeling, Jalpaiguri, Alipurduar (70-110 mm); moderate rain with thunderstorms in South Bengal (North 24 Parganas, Birbhum, Murshidabad, Nadia, East Bardhaman); possible hail and lightning

Limited sun, brief clearings in South Bengal

Dark stormy clouds with rain: A photo of ominous, gray clouds with heavy rainfall and lightning over Kolkata or Darjeeling hills. Source: Shutterstock (search “thunderstorm India”).

April 28th

Partly to mostly cloudy

Moderate rain with thunderstorms in South Bengal (Hooghly, West Medinipur, Bankura, Purulia, East/West Bardhaman); light to moderate rain in Darjeeling, North Dinajpur; winds 40-60 km/h

Partial sun in morning, cloudier later

Cloudy sky with light rain: A photo of scattered clouds with drizzle over a Kolkata street or rural Bengal. Source: Unsplash (search “rainy day India”).

April 29th

Partly cloudy, increasing clouds

Light to moderate rain with thunderstorms across all South Bengal districts; light rain in Darjeeling, Jalpaiguri, North Dinajpur, Malda; winds 30-50 km/h

Some sun early, mostly cloudy by afternoon

Thunderstorm with clouds: A photo of a cloudy sky with lightning flashes over a Bengal landscape. Source: AccuWeather (search “Kolkata thunderstorm”).

April 30th

Partly cloudy

Moderate rain or thunderstorms possible in South Bengal; light rain in North Bengal at isolated places

More sun, especially in South Bengal

Partly cloudy with sun: A photo of a partly cloudy sky with sunlight breaking through over Kolkata’s skyline. Source: Pexels (search “partly cloudy”).

May 1st

Generally cloudy

Light rain or thunderstorms possible in South and North Bengal at scattered places

Partial sun, mostly cloudy

Cloudy sky with light showers: A photo of a gray, cloudy sky with light rain over a Bengal village. Source: Getty Images (search “India rain”).

May 2nd

Generally cloudy

Light rain or thunderstorms at isolated to scattered places in South and North Bengal

Some sunny intervals

Cloudy with sunny breaks: A photo of clouds with patches of blue sky and sunlight over a Bengal river. Source: Unsplash (search “cloudy sunny”).

May 3rd

Partly cloudy

Light rain or thunderstorms at isolated places, decreasing activity

Increasing sunny periods

Sunny with scattered clouds: A photo of a bright, sunny day with a few scattered clouds over Kolkata’s Howrah Bridge. Source: Shutterstock (search “sunny Kolkata”).


Additional Information
The IMD’s 7-day forecast for Kolkata predicts persistent rain and thunderstorms through May 2 with temperatures dropping to 23-25°C (min) and 30-35°C (max). Humidity levels, currently at 63-91%, will make afternoons uncomfortable but storms are likely by evening or night. Beyond West Bengal heavy to very heavy rain is expected in Arunachal Pradesh, Assam and Meghalaya while hailstorms are forecast in Bihar, Chhattisgarh and Karnataka. Heatwaves will persist in Punjab, Haryana, Delhi, Uttar Pradesh and Rajasthan, contrasting Bengal’s cooler spell.

The rough seas along Odisha and West Bengal coasts, with winds of 55-65 km/h, have led to a fishing ban. X users like @CoastalBengal posted, “Fishermen are grounded due to rough seas. Safety first but livelihoods are hit.” The cyclonic systems driving this weather are expected to weaken by mid-week but the IMD urges caution, especially in orange-alert districts prone to flooding and lightning strikes.


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Impact Analysis
The stormy weather has brought relief from Kolkata’s heat but poses significant risks. In South Bengal, heavy rain and winds could disrupt power lines, damage crops and cause waterlogging in low-lying areas like North 24 Parganas and Murshidabad. North Bengal’s heavy rainfall raises fears of landslides in Darjeeling and Jalpaiguri where 70-110 mm of rain could destabilise hilly terrain. X posts highlight public frustration, with @BengalNews saying, “Kolkata’s drainage system can’t handle heavy rain. Flooding is inevitable.”

The orange alert has prompted school closures in some districts and advisories to avoid outdoor activities during storms. The fishing ban along the coast is impacting thousands of livelihoods, with no clear timeline for resumption. However, the temperature drop has eased heatwave concerns in Bengal, unlike northern states facing 40°C+ temperatures. The IMD’s timely warnings have been praised but users on X demand better infrastructure to handle such weather events, citing past flooding in Kolkata.


Kolkata and West Bengal are in for a turbulent few days as storms, heavy rain and gusty winds sweep through. The orange alert for eight districts underscores the severity, with risks of hail, lightning and flooding. While the cooler weather is a relief, the potential for disruption is high. Authorities must ensure robust safety measures and residents should stay vigilant. By staying informed and prepared, we can weather this storm together.


Call to Action (CTA)
Stay safe and share your weather updates on X.! Follow The Daily Hints for the latest news and tips to navigate this stormy spell. Comment below: Stay Safe, Bengal.! Share The Daily Hints to keep others informed.

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