Kolkata to Hills: Heavy Rain Alert Triggered for North Bengal From Sunday

KOLKATA — Heavy rain is likely to hit North Bengal starting Sunday, July 26, 2026, while a continuous wet spell will persist across South Bengal, according to official bulletins issued by the India Meteorological Department (IMD).

The Regional Meteorological Centre (RMC) in Kolkata confirmed that a cyclonic circulation over the northern parts of Gangetic West Bengal and adjoining Bangladesh has intensified, driving heavy moisture inland from the Bay of Bengal. Meteorologists warned that the atmospheric system will trigger intense precipitation in the sub-Himalayan belt while keeping Gangetic West Bengal under overcast conditions with intermittent, light-to-moderate showers throughout the week.

Heavy Rain Warning Issued for North Bengal Districts

Weather officials indicated that monsoon activity will pick up substantially over North Bengal on Sunday. Up-country districts including Darjeeling, Kalimpong, Jalpaiguri, Alipurduar, and Cooch Behar are forecasted to receive isolated heavy to very heavy rainfall over the next five days.

The IMD warned that intense spells of heavy rain could trigger landslides in the fragile hilly terrains of Darjeeling and Kalimpong, while leading to sudden waterlogging and rapid rises in river water levels across the plains of Jalpaiguri and Alipurduar.

South Bengal Prepares for Prolonged Wet Spell

In Gangetic South Bengal, a wet spell is expected to persist through the weekend and early next week. Districts such as Kolkata, Howrah, Hooghly, North and South 24 Parganas, Paschim Medinipur, and Purba Medinipur will witness cloudy skies accompanied by spells of light to moderate rain and isolated thunderstorms.

While extreme heavy downpours in the south are projected to ease mid-week, persistent humidity and localized rain will keep municipal agencies on alert for urban drainage congestion.

Impact on Transportation, Citizens, and Logistics

The upcoming weather conditions threaten to disrupt road transport and agricultural operations. Commuters in Kolkata and surrounding urban clusters face potential traffic delays due to localized waterlogging in low-lying sectors.

In North Bengal, heavy rain poses significant hazards along National Highway 10 and other key arterial routes connecting Siliguri to Sikkim and Kalimpong, increasing the potential for landslips and debris blockages. Farmers in lower catchment areas have been advised to maintain proper drainage systems in standing crop fields to avoid water inundation.

Official Sources Section

According to official weather advisories released by the India Meteorological Department and bulletins from the Regional Meteorological Centre Kolkata, the active monsoon trough combined with regional cyclonic circulations is driving the current precipitation across West Bengal. Public advisories have been shared with local district disaster management authorities to maintain operational readiness.

Quote Section

"According to officials at the Regional Meteorological Centre in Kolkata, moisture-laden winds moving from the Bay of Bengal into northern and Gangetic West Bengal will sustain rainfall activity across both regions. Hilly areas in the north remain vulnerable to landslides, while low-lying urban pockets in the south should prepare for localized water accumulation."

Why It Matters

Sustained monsoon rain plays a critical role in replenishing regional water reservoirs and supporting kharif crop cultivation across West Bengal. However, excessive short-duration rainfall in northern hilly districts increases risks to infrastructure, hill transport corridors, and regional tourism operations.

Key Facts at a Glance

• North Bengal Alert: Heavy rain forecast across Darjeeling, Kalimpong, Jalpaiguri, Alipurduar, and Cooch Behar starting Sunday.

• South Bengal Forecast: Continuous wet spell with light-to-moderate rain and thundershowers expected through early next week.

• Weather Driver: Active monsoon trough combined with a cyclonic circulation over South West Bengal and adjoining Bangladesh.

• Safety Concerns: Landslides in northern hill sectors and urban waterlogging in Gangetic West Bengal districts.

Frequently Asked Questions (FAQ)

When will heavy rain begin in North Bengal?

Heavy rain is expected to intensify across North Bengal districts starting Sunday, July 26, 2026, and will persist over several days.

Which districts in West Bengal are under rainfall alerts?

Districts under watch in North Bengal include Darjeeling, Kalimpong, Jalpaiguri, Alipurduar, and Cooch Behar. In South Bengal, wet conditions cover Kolkata, Howrah, Hooghly, North and South 24 Parganas, and the Medinipur districts.

Is there a risk of landslides in the northern hill districts?

Yes, weather authorities have issued advisories for landslides and landslips in the hilly areas of Darjeeling and Kalimpong due to sustained heavy rain.

How will the rain affect Kolkata and South Bengal?

South Bengal will experience overcast skies and intermittent light-to-moderate rain with isolated thunderstorms, leading to temporary cooling but potential localized urban waterlogging.

Source: Official weather bulletins and press disclosures issued by the India Meteorological Department and the Regional Meteorological Centre Kolkata.