The IMD issued extremely heavy rainfall warnings for Odisha, Andhra Pradesh and Telangana on September 23.
The warnings are linked to a deep depression over the Bay of Bengal.
The system is expected to cross the north Andhra Pradesh-south Odisha coast near Kalingapatnam by Wednesday night.
Chhattisgarh was placed under a very heavy rainfall warning.
Fishermen were advised not to venture into the sea along the affected coast.
The India Meteorological Department issued extremely heavy rainfall warnings for Odisha, Andhra Pradesh and Telangana on September 23, 2026.
Chhattisgarh was placed under a very heavy rainfall warning, one level below extreme.
The warnings are linked to a deep depression over the west-central and adjoining northwest Bay of Bengal.
The IMD said the system is expected to cross the north Andhra Pradesh-south Odisha coast between Visakhapatnam and Gopalpur, close to Kalingapatnam, by Wednesday night.
Coastal residents and fishermen were advised to treat marine warnings seriously and avoid venturing into the sea.
The IMD advised people to avoid waterlogged roads because of unpredictable depth and current.
People were also advised to seek shelter indoors during lightning and to stay away from open fields and isolated trees.
Local administrations in low-lying and drainage-prone areas were asked to stay alert.
The system follows an earlier spell of heavy rain over the same region on September 21-22, as the depression intensified over the Bay of Bengal.
Bengaluru was separately forecast to see thunderstorms with lightning and gusty winds of around 30-40 kmph.
Delhi-NCR was not under any rainfall warning for September 23.
The India Meteorological Department is the government’s nodal agency for weather forecasting and warnings.
Deep depressions of this kind are common over the Bay of Bengal during the post-monsoon and late monsoon period in September and October.
The IMD tracks such systems using satellite imagery, weather radar and a network of surface observation stations.
Bay of Bengal weather system (representative satellite image), Wikimedia Commons, public domain
