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WARNING

2022-12-09

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ADVISORY

2022-12-09

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WEATHER FORECAST FOR MULTI-DAY BOATS

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

(Issued at 07.00 a.m. on 09 December 2022, for next 24hours)

Sea areas around the Island

 

The severe cyclonic storm “Mandous” over Southwest Bay of Bengal (240km north-east of Trincomalee) located near latitude 10.6N and longitude 82.3E at 11.30 p.m. yesterday. It is very likely to move west-northwestwards and cross North Tamil-Nadu, Puducherry and South Andhra Pradesh coast over Southwest Bay of Bengal around mid-night of 09th December.

Under the influence of this system, the deep and shallow sea areas of northern and eastern coast will be very rough to high with very strong gusty winds and heavy rain during 09 of December.

There is a possibility to increase swell waves (about 2.5 – 3.5 m) in the sea areas off the coast extending from Kankasanturai to Pottuvil via Trincomalee & Batticaloa.

Naval and fishing communities are advised not to venture into the deep and shallow sea areas off the coast extending from Mannar to Pottuvil via Kankasanturai, Trincomalee & Batticaloa, Southwest Bay of Bengal (07N - 15N, 80E – 86E) and Southern sea areas (02N - 06N, 78E – 86E), until further notice.

Fishing and naval community are requested to be attentive to future forecasts issued by the Department of Meteorology in this regard.

Condition of Rain:

Showers or thundershowers will occur at times in the sea areas off the coast extending from Mannar to Trincomalee via Kankasanturai. Showers will occur in several places in the sea areas off the coast extending from Galle to Hambanthota via Matara.
Winds:
Winds will be north-westerly to south-westerly. Wind speed will be (40-50) kmph and gusting up to (65-75) kmph at times over the sea area extending from Kankasanturai to Pottuvil via Trincomalee & Batticaloa and over the sea area of Galle to Pottuvil via Hambanthota. Wind speed will be (30-40) kmph and gusting up to (50-60) kmph at times in the other sea areas around the island.
State of Sea:
The sea areas off the coast extending from Kankasanturai to Pottuvil via Trincomalee & Batticaloa will be very rough and high at times. The sea areas off the coast extending from Galle to Pottuvil via Hambanthota will be very rough at times. The other sea areas around the island will be rough at times.

 

Bay of Bengal

 

Weather:

06N-15N, 80E-88E     : Intermittent showers or thundershowers.

Other sea areas           : Showers or thundershowers at most places.

Winds:

06N-16N, 80E-88E       : Anticlockwise / (60-70) kmph; gusting up to (80-90) kmph.

00-06N, 80E-92E         : Westerly to South-westerly / (30-40) kmph; gusting up to (50-70) kmph.

16N-20N, 80E-92E       : Northerly to North-easterly / (30-40) kmph; gusting up to (50-60) kmph.

Other sea areas             : North-easterly or Variable / (20-40) kmph.

State of the Sea:

06N-16N, 80E-88E                                        : Very rough, high at times.

00-06N, 80E-92E &16N-20N, 80E-92E        : Fairly rough to rough, very rough at times.

Other sea areas                                               : Moderate to fairly rough.

 

 

Arabian Sea

Weather:

00-10N, 60E-80E         : Showers or thundershowers at several places.

10N-15N, 60E-75E       : Showers or thundershowers at a few places.

Other sea areas             : Mainly fair weather.

Winds:

00-05N, 60E-80E       : Westerly to South-westerly / (25-35) kmph; gusting up to (40-50) kmph.

07N-20N, 60E-75E     : North-easterly / (25-35) kmph.

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

State of the Sea:

00-05N, 60E-80E       : Moderate to fairly rough.

Other sea areas             : Slight to moderate.

South IndianOcean:

Weather:

00-10S, 90E-100E      : Showers or thundershowers at most places.

00-05S, 60E-90E        : Showers or thundershowers at several places.

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

 

Winds:

00-10S, 70E-92E          : Clockwise / (20-40) kmph.

00-05S, 60E-70E          : Westerly to South-westerly / (10-20) kmph.

Other sea areas             : South-easterly or Variable / (05-15) kmph.

State of the Sea:

00-10S, 70E-92E          : Moderate.

Other sea areas             : Slight.

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

 

Duty-Meteorologist

Department of Meteorology