The India Meteorological Department has issued a red alert for north Bengal and an orange alert for Kolkata as intense monsoon activity, driven by an active monsoon trough and cyclonic circulation, brings heavy rainfall across the state.

North Bengal on High Alert as Intense Monsoon Spell Batters Region

Kolkata: The India Meteorological Department (IMD) has sounded a red alert for sub-Himalayan West Bengal and an orange alert for Kolkata as the state braces for an intense monsoon spell over the next two days. The weather department has attributed the worsening conditions to an active monsoon trough and an upper-air cyclonic circulation drawing large amounts of moisture from the Bay of Bengal.

Widespread light to moderate rainfall, accompanied by thunderstorms, has engulfed several parts of West Bengal, with meteorologists warning that the current weather system could keep rivers and water bodies in a highly volatile state over the next 48 hours.

The latest advisory comes as heavy rains continue to lash both northern and southern districts, raising concerns about flooding, landslides, and disruptions to daily life.

Active Monsoon System Triggers Severe Weather

According to the IMD, the ongoing spell of heavy rainfall is being fuelled by a strong monsoon trough combined with an upper-air cyclonic circulation over the region. The system has intensified moisture inflow from the Bay of Bengal, leading to persistent rainfall across the plains and the Himalayan foothills.

Southern districts, including Kolkata and its surrounding areas, are experiencing unstable atmospheric conditions, with intermittent showers and thunderstorms affecting normal activities.

Meteorologists have warned that the monsoon is likely to remain active in the coming days, increasing the risk of waterlogging and localised flooding.

Heavy Rainfall Recorded in North Bengal

Several areas in north Bengal have witnessed exceptionally heavy rainfall over the past 24 hours.

Hasimara recorded the highest rainfall, receiving 24 centimetres of rain, while Buxaduar and Dima Tea Estate registered up to 19 centimetres. The intense downpour has prompted authorities to issue operational alerts for downstream areas amid fears of rising water levels.

Officials are closely monitoring rivers and drainage systems, as continued rainfall could affect vulnerable regions across the northern districts.

Kolkata Under Orange Alert

The IMD has placed Kolkata under an orange alert, indicating the possibility of heavy rainfall accompanied by thunderstorms and gusty winds.

The city has already experienced several spells of rain in recent days, causing traffic disruptions and waterlogging in low-lying areas. Civic agencies have been asked to remain on alert and ensure that emergency services are prepared to respond to any weather-related incidents.

Residents have been advised to avoid unnecessary travel during periods of intense rainfall and stay updated through official weather bulletins.

Authorities Monitor Water Systems

With heavy rain expected to continue, officials have warned that rivers, reservoirs, and other water systems could remain unstable over the next 48 hours.

The IMD has urged district administrations to remain vigilant and take preventive measures in areas vulnerable to flooding and landslides, particularly in the northern parts of the state.

Emergency teams have been placed on standby as authorities prepare for the possibility of further intensification of the weather system.

Monsoon Activity to Continue

Forecasts suggest that active monsoon conditions will persist across West Bengal in the coming days. The weather department has cautioned that rainfall intensity could fluctuate, but the overall pattern of heavy showers and thunderstorms is expected to continue.

Experts say the current spell underscores the importance of robust disaster-management systems and improved urban infrastructure to cope with increasingly unpredictable weather patterns.

Why This Matters

Heavy monsoon rains can significantly affect transportation, agriculture, and daily life, especially in flood-prone regions. The IMD’s alerts are intended to help authorities and residents prepare for potential disruptions and minimise risks.

With rivers and water bodies under pressure, close monitoring and timely action will be crucial in the coming days.

Key Takeaways

• The IMD has issued a red alert for sub-Himalayan West Bengal and an orange alert for Kolkata.
• The weather system is being driven by an active monsoon trough and upper-air cyclonic circulation.
• Hasimara received 24 cm of rainfall, while Buxaduar and Dima Tea Estate recorded up to 19 cm.
• Authorities have issued operational alerts for downstream areas.
• Heavy rainfall and thunderstorms are expected to continue over the next 48 hours.

Category: West Bengal | Weather | Monsoon