The depression over west-central and adjoining north-west Bay of Bengal remained practically stationary on Sunday afternoon over an area about 280 km east of Kalingapatnam (Andhra Pradesh); 230 km east-south-east of Gopalpur and 260 km south-south-east of Paradip (both in Odisha); and 390 km south of Digha (West Bengal).
India Meteorological Department (IMD) said the depression may move nearly northwestward towards north Odisha-West Bengal coasts and intensify into a deep depression by Monday. It will later move west-northwestwards and cross Odisha and adjoining West Bengal coasts between Puri and Digha around evening/night the same day.. Thereafter, it is likely to move across Odisha and adjoining Gangetic West Bengal and Jharkhand and north Chhattisgarh for next two days.
Fuel from Yagi remnant
businessline had hinted in a report three days ago the likelihood of a deep depression, the third this season, over the Bay . Incoming remnant of typhoon Yagi from Vietnamis seen aiding intensification.
The seasonal land-based trough, know as the monsoon trough, remained south of its normal position where it is expected to continue for next 3-4 days. This southerly alignment caused the heavy rain belt swing back to west and central India at the expense of a rain-deficient north-west India. Large surplus Rajasthan so far this season signals skewed rain distribution over this region. A lone cyclonic circulation persisted over central Rajasthan & neighbourhood on Sunday morning as well.
Extremely heavy rain
The south-bound monsoon trough will trigger isolated extremely heavy rain likely over Coastal Andhra Pradesh & Yanam on Sunday and Monday while it will be isolated very heavy over Coastal Andhra Pradesh & Yanam and Telangana. Isolated heavy rain is likely over Kerala & Mahe on both these days and over Coastal Andhra Pradesh & Yanam and Telangana on Tuesday; South Interior Karnataka until Tuesday; and Coastal Karnataka until Wednesday.
To spread out to east, too
After Odisha on Sunday, isolated very heavy rains may fan out into Jharkhand on Tuesday and Wednesday; over Assam & Meghalaya on Wednesday and Thursday; and over Nagaland, Manipur, Mizoram and Tripura from Tuesday to Thursday.
Isolated heavy rain is likely over Nagaland, Manipur, Mizoram & Tripura during next seven days; over Assam & Meghalaya until Friday; Odisha until Tuesday; Arunachal Pradesh from Tuesday to Thursday; West Bengal on Monday and Tuesday and its hills as well as Sikkim on Wednesday and Thursday; Bihar from Thursday to Saturday; and Jharkhand until Thursday.
Satellite pictures
Afternoon satellite pictures on Sunday showed clouds/moderate to heavy rain spreading out over a swathe of Andhra Pradesh, Telangana and Odisha bounded by Ongole (Coastal Andhra Pradesh); Miryalaguda, Warangal and Ramagundam (Telangana); and Nabarangpur and Brahmapur (Odisha). Some of the areas falling under its footprint are Vijayawada, Rajahmundry, Amaravati, and Visakhapatnam (all Andhra Pradesh); Malkanagiri (Odisha) and Kothagudem (Telangana); and Dantewada (Chhattisgarh), with the heaviest rain concentrated just to north-east of Darba (Odisha).
Rain for West India
An IMD outlook said fairly widespread to widespread light to moderate rain is very likely over West India during the week ahead while it would be scattered to fairly widespread light to moderate over Central India.
Isolated very heavy rain is likely over West Madhya Pradesh on Wednesday and Thursday; East Madhya Pradesh on Monday and Tuesday; Chhattisgarh until Tuesday; and Vidarbha on Monday. 09th September.
Isolated heavy rainfall ia likely over West Madhya Pradesh until Thursday and on Saturday; East Madhya Pradesh until Tuesday; over Gujarat Region (North Gujarat, Gandhinagar and South Gujarat); Konkan & Goa, Vidarbha and Chhattisgarh until Wednesday; and Madhya Maharashtra until Thursday.
Widespread over South
As on Sunday, isolated extremely heavy rain has been forecast over Coastal Andhra Pradesh & Yanam on Monday as well and isolated very heavy over Telangana on Monday. Isolated heavyover Telangana; South Interior Karnataka; and Kerala & Mahe until Tuesday; Coastal Andhra Pradesh & Yanam until Thursday; and Coastal Karnataka until Wednesday.