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IMD bulletins this morning, September 11, signal a rain pivot eastward. A nascent low over the Bay of Bengal is organising moisture. Day-1 warnings focus on Odisha, Chhattisgarh, Jharkhand, and Gangetic West Bengal. Kerala’s coast carries an early morning high-wave window. Delhi-NCR stays hot and humid with isolated showers.
IMD expects heavy to very heavy pockets across Odisha and Chhattisgarh today. Showers then arc into Jharkhand and Gangetic West Bengal through the corridor. Short bursts can overwhelm drains and choke junctions. They may also slow airport turnarounds. Keep buffers for Bhubaneswar, Raipur, and Kolkata departures. Urban buses could see brief, localized delays.
IMD today: Bay low and heavy rain alerts
Colour codes vary by district, updated through the day on IMD’s portal. Morning checks show clusters across East-Central India carrying orange or yellow flags. Verify your district under Day-1 before commuting or planning field work. The brewing Bay low remains the principal rain trigger along this belt today.
Kerala coast high-wave caution and thunderstorms
Kerala’s early window is marine. A swell surge alert covered Thiruvananthapuram coast from 08:30 on September 10 to 08:30 today. Fishers should avoid risky launches and heed local port advisories. Thunderstorms remain possible in pockets, including around Varkala. Expect momentary squalls, slippery promenades, and choppy nearshore conditions.
Delhi heat index and Bengaluru rain
New Delhi-Safdarjung targets a 33 degree Celsius maximum with light rain chances. Humidity near 65 percent this morning means a sticky commute window. Use radar and satellite before stepping out for errands or flights. Bengaluru keeps modest rain probabilities with a generally cloudy sky. Watch water-logging near low-lying junctions if showers cluster.
If you are travelling across the east corridor today, plan flexible arrivals. Check IMD’s district warnings and nowcast pages before intercity drives. Expect short, intense bursts rather than daylong rain. Marine users along Kerala should wait out the swell window. IMD’s later updates will refine impacts as the Bay low evolves.