WEATHER FORECAST FOR MULTIDAY BOATS
For the sea areas in between 20N - 10S and 60E-100E
(Issued on 25 September 2021, for next three days)
Sea areas around the island
The depression located over North Bay of Bengal lay centered near latitude 18.4N and longitude 90.4E. This system is very likely to intensify into a deep depression during next 12 hours.
Naval and fishing communities are advised not to venture into the sea areas around latitude 16.0N and 20.0N longitude 85.0E and 95.0E until further notice.
Showers or thundershowers will occur at times in the sea areas extending from Mannar to Hambantota via Colombo and Galle. Heavy falls are likely at some places. Showers or thundershowers may occur at several places in the other sea areas around the island.
Winds will be south-westerly in direction and wind speed will be (30-40) kmph in the sea areas around the island. The wind speed can be increased up to (50-60) kmph at times in the sea areas extending from Puttalam to Pottuvil via Colombo, Galle and Hambantota.
The sea areas extending from Puttalam to Pottuvil via Colombo, Galle and Hambantota will be rough at times. The other sea areas around the island may be fairly rough at times.
Temporarily strong gusty winds and very rough seas can be expected during thundershowers.
Bay of Bengal
Weather:
05N-20N, 80E-100E : Showers or thundershowers at most places.
00-05N, 90E-100E : Showers or thundershowers at most places.
Other sea areas : Showers or thundershowers at several places.
Winds:
00-12N, 80E-100E : South-Westerly / (20-40) kmph; gusting up to (50-60) kmph.
12N-16N, 80E-100E : South-Westerly / (20-40) kmph
16N-20N, 85E-95E : South-Westerly / (30-40) kmph; gusting up to (60-70) kmph.
Other sea areas : South-Westerly / (10-20) kmph; gusting up to (30-40) kmph.
Sea State:
00-12N, 80E-100E : Fairly rough to rough
12N-16N, 80E-100E : Moderate
16N-20N, 85E-95E : Rough to very rough
Other sea areas : Slight to moderate.
Arabian Sea
Weather:
00-10N, 65E-80E : Showers or thundershowers at most places.
Other sea areas : Showers or thundershowers at a few places.
Winds:
00N-10N, 75E-80E : Westerly or south-westerly/ (20-45) kmph; gusting up to (50-60) kmph.
05N-15N, 60E-75E : South-westerly to North-Westerly / (25-35) kmph; gusting up to (40-50) kmph.
Other sea areas : South-Westerly or Variable/ (15-25) kmph.
Sea State:
00N-10N, 75E-80E : Fairly rough to rough
05N-15N, 60E-75E : Moderate to fairly rough
Other sea areas : Slight to moderate.
South Indian sea area
Weather:
00-05S, 70E-95E : Showers or thundershowers at most places.
00-10S, 95E-100E : Showers or thundershowers at most places.
Other sea areas : Mainly fair weather
Winds:
00-10S, 60E-70E : Variable/ (10-20) kmph
00-10S, 70E-100E : South-Easterly to Southerly/ (15-25) kmph.
Sea State:
00-10S, 60E-70E : Slight to moderate
00-10S, 70E-100E : Fairly rough, Rough at times
**Temporary strong gusty winds and rough seas can be expected during thundershowers.
Duty-Meteorologist
Department of Meteorology