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DEPARTMENT OF METEOROLOGY SRI LANKA

WARNING

2023-01-31

Warning for Depression Issued by the Natural Hazards Early Warning Centre Issued at 09.00 p.m. 31 January 2023, valid for 09.00 a.m. 01st February 2023

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WEATHER FORECAST FOR 01 FEBRUARY 2023

Issued at 05.30 a.m. on 01 February 2023

The depression over the Southwest Bay of Bengal, lay centered near 8.4°N and 82.9°E, about 180km of east of Trincomalee yesterday night. It is likely to move west-Southwest ward and reach east coast of Sri Lanka on 01^stFebruary 2023 (today) morning.

Cloudy sky will prevail over most parts of the island and Showers or thundershowers will occur at times.

Very heavy showers about 150mm are likely at some places in Northern, North-central, North-western and Eastern provinces.

Strong winds about (50-60) kmph can be expected at times over the Northern, North-central, Eastern, North-western and Central provinces and strong winds about (40-50) kmph can be expected elsewhere.

General public is kindly requested to take adequate precautions to minimize damages caused by temporary localized strong winds and lightning during thundershowers.

WEATHER FORECAST FOR SEA AREAS AROUND THE ISLAND DURING NEXT 24 HOURS

Issued at 05.30 a.m. on 01 February 2023

It is advised not to venture into fishing and naval activities in the sea areas around the Island.

For Southeast Bay of Bengal and South-West Bay of Bengal:

Wind speeds will be (30-50) kmph and can increase up to (60-70) kmph in sea areas between

(05N - 12 N) and between (78E – 88E). Heavy showers or thundershowers and very rough or rough seas can also be expected in above sea areas. Therefore, naval and fishing communities are advised not to venture into the above-mentioned sea area till 02^nd February.

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 around the Island.

Winds:

Winds will be north-easterly and wind speed will be (30-40) kmph. Wind speed may increase up to (55-60) kmph at times off the coast extending fromPottuvil to Puttalam via Batticaloa, Trincomalee, Kankasanthurai and Mannar.

State of Sea:

The sea areas will be rough and very rough at times with the swell waves (about 2.5 – 3.0 m height) off the coast extending fromPottuvil to Mannar via Batticaloa, Trincomalee and Kankasanthurai. Other sea areas around the island will be fairly rough.

Temporarily strong gusty winds and very rough seas can be expected during thundershowers.

GENERAL WEATHER FORECAST FOR NEXT 36 HOURS

Issued at 04.00 p.m. on 31 January 2023

The depression over the Southeast and adjoining Southwest Bay of Bengal lay centered at morning hours of the 31st January, 2023 over Southwest Bay of Bengal latitude near 8.6°N and longitude 84.9°E, about 290 km east of Trincomalee It is very likely to move nearly westwards till evening of today, the 31st January. Thereafter, it is likely to recurve gradually west-southwestwards and cross Sri Lanka coast between latitude 7°N to 8°N during forenoon of 01st February 2023.

Cloudy sky will prevail over most parts of the island and Showers or thundershowers will occur at times.

Very heavy showers about 150mm are likely at some places in Northern, North-central, North-western and Eastern provinces. Heavy showers above 100mm are likely at some places elsewhere.

Strong winds about (50-60) kmph can be expected at times over the northern, North-central, Eastern, North-western and Central provinces and strong winds about (40-50) kmph can be expected elsewhere.

General public is kindly requested to take adequate precautions to minimize damages caused by temporary localized strong winds and lightning during thundershowers.

Weather Forecast for Main Cities				Date :	1-Feb-2023
City	Temperature (⁰C)		Relative Humidity (%)		Weather
City	Max	Min	Max	Min	Weather
Anuradhapura	27	23	95	70	Showers or thundershowers at times
Batticaloa	27	23	95	75	Showers or thundershowers at times
Colombo	29	24	90	65	Showers or thundershowers at times
Galle	27	23	90	75	Showers or thundershowers at times
Jaffna	26	24	95	75	Showers or thundershowers at times
Kandy	26	21	95	60	Showers or thundershowers at times
Nuwara-Eliya	16	12	95	80	Showers or thundershowers at times
Ratnapura	27	22	95	65	Showers or thundershowers at times
Trincomalee	27	24	95	80	Showers or thundershowers at times
Mannar	26	24	95	80	Showers or thundershowers at times

9 Days Weather Forecast

Weekly Rainfall Anomaly Forecast

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