May 21, Colombo (LNW): South-West monsoon is gradually getting established over the island, and showers, therefore, will occur at times in Western, Sabaragamuwa and North-western provinces and in Galle, Matara, Kandy and Nuwara-Eliya districts, the Department of Meteorology said in its daily weather forecast today (21).
Fairly heavy falls above 50 mm are likely at some places in the above areas.
Several spells of showers will occur in Northern province and in Anuradhapura district.
Showers or thundershowers may occur at a few places in Uva province and in Ampara and Batticaloa districts after 2.00 pm.
Fairly strong winds about (30-40) kmph can be expected at times over Western slopes of the central hills, Northern, North-central, North-western and Southern provinces.
The general public is kindly requested to take adequate precautions to minimise damage caused by temporary localised strong winds and lightning during thundershowers.
Marine Weather:
Condition of Rain: Showers or thundershowers will occur at several places in the sea areas off the coast extending from Puttalam to Hambantota via Colombo and Galle.
Showers or thundershowers may occur at a few places elsewhere around the island in the evening or night.
Winds: Winds will be southwesterly.
Wind speed will be (30-40) kmph.
Wind speed can increase up to (50-60) kmph at times in the sea areas off the coast extending from Kankasanthurai to Puttalam via Mannar and from Galle to Pottuvil via Hambantota.
The wind speed may increase to about 50 kmph at times in the sea areas off the coast from Kankasanthurai to Batticaloa via Trincomalee and from Colombo to Galle.
State of Sea: The sea areas off the coasts extending from Kankasanthurai to Puttalam via Mannar and from Galle to Pottuvil via Hambantota will be rough at times.
The sea areas off the coast from Kankasanthurai to Batticaloa via Trincomalee and from Colombo to Galle will be fairly rough at times.
The other sea areas around the island can be moderate.
The wave height may increase (about 2.0 – 2.5m) in the sea areas off the coast extending from Mannar to Pottuvil via Puttalam, Colombo, Galle and Hambantota (this is not for land area).
Temporarily strong gusty winds and very rough seas can be expected during thundershowers.