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ADVISORY

2020-01-21

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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 21 January 2020, for next three days)

Sea areas around the island

 

Showers or thundershowers will occur at several places in the sea areas extending from Colombo to Matara via Galle in the evening or night and a few showers may occur in the sea areas extending from Trincomalee to Hambanthota via Batticaloa.

Winds will be North-easterly and speed will be (30-40) kmph in the sea areas around the island. Wind speed can increase up to (50-55) kmph at times in the sea areas extending from Mannar to Kaluthara via Puttalam and Colombo and in the sea areas extending from Matara to Pottuvil via Hambanthota.

The sea areas extending from Puttalam to Kaluthara via Colombo and in the sea areas extending from Matara to Pottuvil via Hambanthota can be fairly rough at times.

Bay of Bengal

 

 

Weather:

 

00-10N, 80E-90E                 : Showers or thundershowers at several places.

00-10N, 90E-100E               : Showers or thundershowers at a few places.

Other sea areas                     : Mainly fair weather.

Winds:

03N-06N, 80E-83E               : North-easterly / (35-45) kmph; gusting up to (50-60) kmph.

02N-15N, 83E-95E               : Easterly to North-easterly / (20-40) kmph; gusting up to 50 kmph.

15N-20N, 90E-95E               : Northerly to North-easterly / (20-40) kmph

Other sea areas                     : Easterly or Variable/ (10-30) kmph.

Sea State:

03N-06N, 80E-83E               : Fairly rough, rough to very rough at times.

02N-15N, 83E-95E               : Moderate to fairly rough; rough at times.

15N-20N, 90E-95E               : Moderate to fairly rough

Other sea areas                     : Slight to moderate.

Arabian sea area

 

 

 

Weather:

 

00-07N, 60E-80E                 : Showers or thundershowers at several places.

Other sea areas                     : Mainly fair weather.

Winds:

00-10N, 70E-80E                 : North-easterly / (35-45) kmph, gusting up to (50-60) kmph.

00-10N, 60E-70E                 : North-easterly / (20-40) kmph, gusting up to 50 kmph.

Other sea areas                     : Northerly to North-easterly / (20-30) kmph.

 

Sea State:

 

00-10N, 70E-80E                 : Fairly rough, rough to very rough at times

00-10N, 60E-70E                 : Moderate, fairly rough at times

Other sea areas                     : Slight to moderate.

South Indian sea area

Weather:

 

Showers or thundershowers at several places.

Winds:

 

00-10S, 60E-80E                  : North-easterly / (20-30) kmph, gusting up to 40 kmph.

05S-10S, 60E-70E                : North-easterly / (20-30) kmph, gusting up to 40 kmph.

05S-10S, 70E-10E                : South-easterly to easterly / (20-30) kmph.

Other sea areas                       : Easterly or Variable / (10-30) kmph.

 

Sea State:

 

00-10S, 60E-80E                  : Moderate; fairly rough at times.

05S-10S, 60E-70E                : Moderate; fairly rough at times.

05S-10S, 70E-10E                : Moderate.

Other sea areas                       : Slight to moderate.

 

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