Overview

• IMD forecasts mostly cloudy skies with light to moderate showers and thundershowers in Kolkata on most days through October 2, with rain intensity likely to rise after Mahalaya and gusts reaching 30–40 km/h.
• A cyclonic circulation that shifted toward eastern Bihar is drawing moisture inland and sustaining the showers across Bengal, according to regional meteorologists.
• A yellow alert for heavy rainfall is in place for parts of North Bengal, with Jalpaiguri and Alipurduar warned for heavy showers on Friday and Darjeeling, Kalimpong, Cooch Behar and Malda set for spells of rain on Saturday, before an expected easing.
• Several South Bengal districts — including South 24-Parganas, East and West Midnapore, Purulia, Bankura, East and West Burdwan, Birbhum and Murshidabad — are expected to see thunderstorms with lightning, 30–40 km/h winds and isolated heavy rain of 7–11 cm.
• Forecasters say September rainfall is likely to be above normal, so Mahalaya and Puja preparations are proceeding with expectations of on-and-off showers.