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Bay of Bengal low-pressure system to drench eastern India with heavy rainfall

A developing weather system over the northwest Bay of Bengal is expected to move inland, bringing heavy to extremely heavy rainfall across Odisha, West Bengal and Jharkhand in the coming days.

LSN India · 30 August 2026

Bay of Bengal low-pressure system to drench eastern India with heavy rainfall

A low-pressure area forming over the northwest Bay of Bengal is forecast to intensify and advance westward and northwestward, directing significant moisture into eastern India's most vulnerable regions.

The India Meteorological Department has indicated that Odisha, West Bengal and Jharkhand will bear the brunt of the system's impact, with rainfall intensities ranging from heavy to extremely heavy across these states. The progression of the weather system poses potential risks of flooding, waterlogging and landslides in vulnerable areas, particularly in the coastal and sub-Himalayan regions.

Residents and authorities in the affected states have been advised to remain alert and monitor official weather updates as the system moves across the region. The exact timing and intensity of the rainfall may shift based on the system's trajectory and interaction with local atmospheric conditions.

Eastern India experiences significant precipitation during the monsoon season, with weather systems originating from the Bay of Bengal accounting for a substantial portion of annual rainfall in these states. Such systems are a regular occurrence during the active monsoon months.