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WEATHER FORECAST FOR MULTIDAY BOATS

For the sea areas in between 20N - 10S and 60E-100E

(Issued at 07.00 a.m. on 12 August 2020, for next three days)

Sea areas around the island

 

 

Showers or thundershowers may occur at a few places in the sea areas extending from Puttalam to Hambantota via Colombo and Galle.

Winds will be South-westerly in the sea areas around the island. Wind speed will be (30-40) kmph. Wind speed can increase up to 60 kmph in the sea area off the coast extending from Kankasanturai to Colombo via Mannar and from Matara to Pottuvil. The wind speed can increase up to (50) kmph at times in the other sea areas around the island.

The sea areas extending from Kankasanturai to Colombo via Mannar and from Matara to Pottuvil will be rough.

The other sea areas around the island can be fairly rough at times.

There is a possibility that near shore sea areas off the coast extending from Beruwala to Hambantota via Galle, may experience surges due to the effect of swell waves, having 2.0 – 2.5m height (this is not the height of nearshore waves).

 

Naval and fishing communities and those who are living in coastal areas are requested to be vigilant in this regard.

 

Bay of Bengal

 

Weather:

15N-20N, 80E-100E             : Showers or thundershowers at times.

10N-15N, 90E-100E               : Showers or thundershowers at several places.

Other sea areas                       : Showers or thundershowers at a few places.

Winds:

05N-20N, 80E-100E          : South-westerly / (35-45) kmph, gusting up to (50-60) kmph.

00-05N, 80E-95E                 : South-westerly / (20-40) kmph.

Other sea areas                     : Variable / (10-20) kmph.

 

Sea State:

 

05N-20N, 80E-100E             : Fairly rough to rough, very rough at times.

00-05N, 80E-95E                   : Moderate to fairly rough.

Other sea areas                 : Slight to moderate.

 

Arabian sea area

 

 

Strong or very strong gusty winds can be expected over Central and Northern Arabian Sea (10N-20N, 60E-70E).Naval and fishing communities are requested to be vigilant in this regard.

 

 

 

Weather:

15N-20N, 70E-75E            : Showers or thundershowers at times.

00N-15N, 65E-80E              : Showers or thundershowers at several places.

Other sea areas                     : Showers or thundershowers at a few places.

 

 

Winds:

10N-20N, 60E-70E                : South-westerly / (45-55) kmph, gusting up to (60-70) kmph.

05N-10N, 75E-80E                : Westerly to South-westerly/ (30-40) kmph, gusting up to (50-55) kmph.

10N-20N, 70E-75E                 : South-westerly to Westerly / (30-40) kmph, gusting up to 50 kmph.

05N-10N, 60E-70E                : South-westerly / (30-40) kmph.

Other sea areas                     : South-westerly to Westerly / (10-20) kmph.

Sea State:

 

10N-20N, 60E-70E                : Rough to very rough.

05N-10N, 75E-80E                : Fairly rough to rough.

10N-20N, 70E-75E                : Fairly rough to rough.

05N-10N, 60E-70E                : Moderate.

Other sea areas                       : Slight to moderate.

 

South Indian sea area

Weather:

05S-10S, 80E-95E             : Showers or thundershowers at times.

Other sea areas                     : Showers or thundershowers at several places.

 

Winds:

05S-10S, 70E-90E               : South-easterly / (30-40) kmph; gusting up to 50 kmph.

05S-10S, 90E-100E             : South-easterly to Easterly / (20-30) kmph; gusting up to 40kmph.

Other sea areas                     : South-easterly or Easterly / (20-30) kmph.

Sea State:

 

05S-10S, 70E-90E                : Moderate to fairly rough, rough at times.

05S-10S, 90E-100E              : Moderate to fairly rough.

Other sea areas                     : Slight to moderate.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

 

**Temporary strong gusty winds and rough seas can be expected during thundershowers.