Overview
- Regional Meteorological Centre and the India Meteorological Department have issued forecasts on Oct. 10 that light to moderate rain or thundershowers are likely in Kolkata and several south Bengal districts between Oct. 15 and 17.
- Some official briefings give a broader window for rain from Oct. 14 to 19, creating uncertainty for organisers and visitors planning events and outdoor displays.
- Forecasters say the southwest monsoon is withdrawing but an upper‑air cyclonic circulation moving into the Andaman Sea and a possible low over the southeast Bay of Bengal around Oct. 13 could sustain showers in eastern and southern India.
- Pakistan agencies warn a westerly wave will affect northern and central Pakistan through about Oct. 14–15 with rain, thunderstorms, isolated hail and strong winds and have asked authorities to activate local preparedness plans.
- Even light to moderate rain could spoil pandal artwork, slow crowds, damage temporary structures and trigger power outages or localized flooding, so officials and communities have been urged to secure displays, protect equipment and avoid risky travel.