West Bengal Braces for Deluge as IMD Issues Red Alert for Rains

Anirudh Jain - Kolkata Bureau Jul 04, 2026 1,450 Views

The IMD has issued a red alert for South 24 Parganas and Purba Medinipur districts in West Bengal due to an intensifying low-pressure system over the Bay of Bengal. Extremely heavy rainfall is expected across southern West Bengal, prompting authorities to deploy disaster management teams and sound high-level alerts.

A well-marked low-pressure system over the Bay of Bengal is set to bring extremely heavy rainfall, prompting high-level disaster management preparedness across the state.

KOLKATA — The India Meteorological Department (IMD) has issued a "red" warning for parts of southern West Bengal, forecasting very heavy to extremely heavy rainfall as a low-pressure system over the Bay of Bengal intensifies into a well-marked weather system. The alert, effective Saturday, July 4, 2026, marks a critical period of weather activity for the region, with authorities warning that conditions could deteriorate significantly by Sunday.

The weather system, currently situated over the Northwest Bay of Bengal and adjoining coastal areas of West Bengal and Odisha, is moving west-northwestward. This trajectory is expected to trigger widespread rainfall accompanied by thunderstorms and squally winds across the southern districts of West Bengal over the coming days.

Red and Orange Alerts Issued

The IMD has placed South 24 Parganas and Purba Medinipur under a "red" warning—the highest level of the agency's color-coded alert system—indicating that "take action" measures are required due to the high risk of severe weather.

Additionally, an orange alert—signifying a need to "be prepared"—has been sounded for Jhargram, Paschim Medinipur, and Howrah districts. Other districts across South Bengal are expected to receive heavy rainfall, with officials monitoring the situation closely for potential flash flooding or waterlogging.

Disaster Management Preparedness

In response to the IMD forecast, the West Bengal state government has mobilized its disaster management apparatus. Senior officials confirmed that control rooms are operating round-the-clock to monitor vulnerable areas, particularly in low-lying zones susceptible to inundation.

"District administrations have been instructed to be prepared for any rain-related exigency," a senior government official stated. "Disaster management teams, civil defense personnel, and emergency equipment have been kept on high alert. Departments concerned have been tasked with responding promptly to incidents such as waterlogging, uprooted trees, and any disruption to infrastructure caused by heavy rain."

The meteorological office has also issued a warning for fishermen, advising them against venturing into the sea along and off the West Bengal and Odisha coasts, where squally winds reaching speeds of 35–45 kmph, occasionally gusting to 55 kmph, are expected to prevail until July 7.

Why It Matters

For citizens, the forecast of extremely heavy rainfall poses significant risks, including the potential for structural damage, disruption to power and communication lines, and major traffic congestion in urban centers like Kolkata. The agricultural sector is also under watch, with the IMD advising farmers to manage irrigation in vegetable plots and monitor crops for water-related diseases caused by the saturated soil conditions.

Key Facts at a Glance

Weather System: A well-marked low-pressure area over the Northwest Bay of Bengal.
Red Alert Districts: South 24 Parganas and Purba Medinipur.
Orange Alert Districts: Jhargram, Paschim Medinipur, and Howrah.
Advisories: Fishermen are strictly advised not to venture into the sea; citizens are urged to stay indoors during intense spells of rain.
Duration: Heavy rainfall is anticipated to continue across South Bengal throughout the weekend and into the early part of next week.

FAQ

What does a 'Red Alert' mean?

A red alert is the highest level of meteorological warning, indicating that extremely heavy rainfall is expected and residents should take immediate protective action and avoid unnecessary travel.

How long is the current weather system expected to last?

According to IMD forecasts, the current low-pressure system is likely to remain active and move westward over the next three days, with rainfall activities continuing in the region at least until July 7.

Are there concerns regarding infrastructure?

Yes, authorities have warned of potential damage to thatched huts, uprooting of trees, and waterlogging in low-lying areas, and they have prepared civil defense teams to manage these specific risks.

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