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ADVISORY

2021-06-11

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Lelwala ( AWS) Matara District

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Weather and Climate Data

 

 

WEATHER FORECAST FOR MULTIDAY BOATS

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

(Issued on 12 June 2021, for next three days)

 

 

 Sea areas around the island

 

Showers or thundershowers will occur at a few placesin the sea areas extending from Puttalam to Hambantota via Colombo, Galle and Matara. Mainly fair weather will prevail in the other sea areas.

 

Winds will be south-westerly in the sea areas around the island. Wind speed will be (30-40) kmph andwind speed can be increased up to (50-60) kmph in the sea areas extending from Galle to Pottuvil via Hambantota and from Negombo to Kankasanturai via Puttalam and Mannar.

The sea areas extending from Galle to Pottuvil via Hambantota and from Negombo to Kankasanturai via Puttalam and Mannar will be rough at times. The other sea areas around the island can be fairly rough at times.

Naval and fishing communities are requested to be vigilant in this regards.

 

Bay of Bengal

A low-pressure area has formed over northwest Bay of Bengal and adjoining sea areas on 11th June 2021. It is Likely to further develop over the same region during next 24 hours and move west-northwestwards.

Naval and fishing communities who are in above mentioned sea area advised to be vigilant in this regard.

Weather:

 

15N-20N, 85E-100E      : Showers or thundershowers at most places.

15N-20N, 80E-85E       : Showers or thundershowers at several places.

10N-20N, 80E-90E      : Showers or thundershowers at several places.

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

                                                                           

Winds:

10N-20N, 80E-95E      : South-westerly / (35-45) kmph; gusting up to (70-80) kmph.

03N-10N, 80E-95E       : South-westerly / (30-40) kmph; gusting up to (60-70) kmph.

03N-20N, 95E-100E     : South-westerly to southerly/ (35-45) kmph; gusting up to (50-60) kmph.

Other sea areas               : South-easterly to south-westerly / (20-30) kmph.

 

 

Sea State:

10N-20N, 80E-95E       : Very Rough to high

03N-10N, 80E-95E       : Rough to very rough

03N-20N, 95E-100E     : Fairly rough to rough.

Other sea areas         : Moderate to fairly rough.

 

Arabian Sea

 

Weather:

00-10N, 75E-80E       :  Showers or thundershowers at several places.

10N-20N, 65E-77E      : Showers or thundershowers at several places.

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

Winds:

00-20N, 60E-70E        : South-westerly / (35-45) kmph, gusting up to 60 kmph.

05N-20N, 70E-77E      : South-westerly / (30-40) kmph, gusting up to (50-60) kmph.

Other sea areas              :  South-easterly to south-westerly / (25-35) kmph.

 

Sea State:

00-20N, 60E-70E         : Rough to very rough

05N-20N, 70E-77E        :  Fairly rough, rough at times.

Other sea areas              : Moderate.

 

 

 

 

 

South Indian sea area

 

Weather:

00-05S, 70E-100E        : Showers or thundershowers at several places.

05S-10S, 85E-100E      :  Showers or thundershowers at few places.

Other sea areas             : Mainly fair weather.

Winds:

05S-10S, 60E-90E       :  South-easterly / (30-40) kmph.

00-05S, 60E-70E         :  South-easterly to south-westerly / (20-30) kmph; gusting up to 40 kmph.

00-05S, 70E-80E         : Variable / (25-35) kmph.

Other sea areas             :  South-westerly or variable / (30-40) kmph.

Sea State:

05S-10S, 60E-90E       :Moderate, fairly rough at times.

Other sea areas              : Slight to Moderate

 

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

 

Duty-Meteorologist

Department of Meteorology