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ADVISORY

2020-12-04

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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 at 07.00 a.m. on 04th December 2020, for next three days)

 

 

 

 

Sea areas around the island

 

The cyclonic storm ‘BUREVI’ has weakend into a Deep depression and located about 143 km to the west-northwest of Mannar at around 02.30 a.m today.

Naval and fishing communities are advised not to venture into the deep and shallow-sea areas off the coast extending from Puttalam to Mullaitivu via Mannar and Kankasanthurai until tonight.

Showers or thundershowers will occur at times in the deep and shallow sea areas extending from Puttalam to   Trincomalee via Mannar and Kankasanthurai.Very heavy showers can be expected at some places in the above sea areas. Showers will occur at times elsewhere.

Winds will be westerly to south-westerly in the sea areas extending from Puttalam to Mullaitivu via Mannar and Kankasanthurai . Wind speed will be (55-65) kmph and wind speed can increase up to 75 kmph at times over these sea areas. Winds will be south-westerly in the sea areas extending from Galle to Hambanthota via Mathara . Wind speed will be (30-40) kmph and wind speed can increase up to 50 kmph at times in these sea areas.

Winds will be south-westerly or variable in the other sea areas around the island and the wind speed will be (30-40) kmph.

The deep and shallow-sea areas off the coast extending from Puttalam to Mullaitivu via Mannar and Kankasanthureyi can be very rough at times.

The sea areas extending from Galle to Hambanthota via Mathara can be rough at times.

There is a possibility that near shore sea areas off the coast extending from Puttalam to Kankasanthureyi via Mannar may experience surges due to the effect of swell waves, having (0.5-1.0) m height perticularly in the morning hours.

Bay of Bengal

 

Weather:

10N-15N, 80E-85E      : Intermittent showers/thundershowers

07N-10N, 80E-90E      : Showers or thundershowers at times.

00-05N, 80E-100E     : Showers or thundershowers at several places.

15N-17N, 80E-100E    : Showers or thundershowers at a few places

Other sea areas              : Mainly fair weather.

 

Winds:

04N-12N, 80E-85E      : Anticlockwise/ / (35-45) kmph; gusting up to 60 kmph.

12N-20N, 80E-100E    : Easterly to south-easterly / (30-40) kmph; gusting up to 50 kmph.

Other sea areas             : Westerly to north-westerly / (20-30) kmph

 

Sea State:

04N-12N, 80E-85E      : Rough, very rough at times.

12N-20N, 80E-100E    : Fairly high, rough at times

sea areas                     : Slight to moderate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Arabian Sea

 

The cyclonic storm ‘BUREVI’ has weakend into a Deep depression and located about 143 km to the west-northwest of Mannar at around 02.30 a.m today.

 

 

Weather:

06N-10N, 75E-80E      : Intermittent showers/thundershowers

08N-12N, 70E-75E      : Showers or thundershowers at times.

05N-12N, 65E-70E      : Showers or thundershowers at a few places

Other sea areas              : Mainly fair.

Winds:

06N-10N, 76E-80E      : North- westerly or south-westerly/ (60-70) kmph; gusting up to 80 kmph.

00-06N, 68E-80E         : North- westerly or Westerly/(30-40) kmph; gusting up to 50 kmph

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

Sea State:

06N-10N, 76E-80E     : Very rough, high at times.

00-06N, 68E-80E       :Fairly rough, rough at times

Other sea areas            : Slight to moderate

 

 

South Indian sea area

Weather:

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

05S-10S, 65E-80E       : Showers or thundershowers at several places.

02S-05S, 65e-85E         : Showers at a few places

Other sea areas              : Mainly fair.

Winds:

06S-10S, 80E-90E      : Clockwise / (30-40) kmph; gusting up to 60 kmph.

00-06S, 60E-80E        : North-westerly to Westerly / (30-40) kmph

Other sea areas              : Westerly or variable / (20-30) kmph

Sea State:

06S-10S, 80E-90E                 : Fairly rough, rough at times

00-06S, 60E-80E          : 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