Formation of a Low Pressure Area over Southeast Bay of Bengal & adjoining south Andaman Sea by 05th December, 2022

A cyclonic circulation lies over south Andaman Sea & adjoining equatorial Indian ocean-Strait
of Malacca extending upto mid-tropospheric levels. Under its influence, a Low Pressure Area is likely
to form over Southeast Bay of Bengal & adjoining south Andaman Sea by 05th December. It is likely to
move west-northwestwards and concentrate into a Depression over Southeast Bay of Bengal by
07th December morning. Thereafter, it is likely to continue to move west-northwestwards and reach
Southwest Bay of Bengal near north Tamil Nadu-Puducherry & adjoining south Andhra Pradesh coasts
by 08th December morning. As a result:
 Widespread light/moderate rainfall with isolated heavy falls very likely over Andaman &
Nicobar Islands during 04th-06th December, 2022.
 As the expected Low Pressure system moves towards Southwest Bay of Bengal, enhanced rainfall
activity likely to commence over north coastal Tamilnadu, Puducherry & Karaikal and South coast
Andhra Pradesh from 07th December mid-night. It is likely to increase with rainfall at most places
with isolated heavy to very heavy rainfall over north Tamilnadu & Puducherry and isolated
heavy rainfall over south Andhra Pradesh on 08th December.
 Squally weather (speed 40-45 kmph gusting to 55 kmph) very likely over Andaman & Nicobar
Islands and Andaman Sea on 04th & 05th December.
 Squally winds (speed 45-55 kmph gusting to 65 kmph) likely over Southeast Bay of Bengal on 05th
& 06th December; over Southwest & adjoining Southeast Bay of Bengal on 06th & 7th December.
 Squally winds (50-60 kmph gusting to 70 kmph) over Southwest Bay of Bengal & adjoining Sri
Lanka coast on 07th & 08th December.
 Squally wind speed reaching 40-50 kmph gusting to 60 kmph likely to commence along &
off Tamilnadu, Puducherry, south Andhra Pradesh coast and Gulf of Mannar from 08th December
morning becoming 50-60 kmph gusting to 70 kmph from 08th December evening for subsequent 12
hours.

 Fishermen are advised not to venture into:

 Andaman Sea on 04th & 05thDecember.
 Southeast Bay of Bengal from 05th-07th December.
 Southwest Bay of Bengal from 06th-08th December onwards.
 Along & off Sri Lanka coast from 06th-08th December.
 Along & off Tamilnadu, Puducherry and South Andhra Pradesh coast and Gulf of Mannar
from 07th-09th December morning

 A trough in easterlies runs from Comorin area to north Kerala coast in lower tropospheric levels. Under
its influence:
 Isolated heavy rainfall likely over Tamilnadu, Puducherry & Karaikal and Lakshadweep and
isolated thunderstorm also likely over Kerala & Mahe on 04th December.
 Squally weather (speed 40-45 kmph gusting to 55 kmph) very likely along & off Kerala coast and
adjoining Maldives, Lakshadweep area and Comorin area on 04th December. Fishermen are advised
not to venture into these areas.
 A new feeble Western Disturbance is likely to affect Western Himalayan Region from 07th December.
Under its influence, isolated light to moderate rainfall likely over Jammu-Kashmir, Ladakh and
Himachal Pradesh on 08th December.