May 20, Colombo (LNW): South-West monsoon conditions are gradually getting established over the island.
Showers or thundershowers will occur at times in Western, Sabaragamuwa, North-western, Central and Southern provinces.
Fairly heavy falls about 75 mm are likely at some places in Western and Sabaragamuwa provinces and in Galle, Matara, Puttalam, Nuwara-Eliya and Kandy districts.
Several spells of showers will occur in Northern and North-central provinces.
Showers or thundershowers may occur in Eastern province during the evening or night.
Fairly strong winds of about (30-40) kmph can be expected at times over North-western, North-central, Northern, Central and Southern provinces and in Trincomalee district.
The general public is kindly requested to take adequate precautions to minimize damages caused by temporary localized strong winds and lightning during thundershowers.
Marine Weather:
Condition of Rain:
Showers or thundershowers will occur at several places in the sea areas around the island.
Winds:
Winds will be westerly to south-westerly and wind speed will be (30-40) kmph. Wind speed can increase up to (55-65) kmph at times in the sea areas off the coast extending from Puttalam to Pottuvil via Colombo, Galle, Matara and Hambanthota.
Wind speed can increase up to (50-55) kmph at times in the sea areas off the coast extending from Puttalam to Batticaloa via Mannar, Kankasanthurai and Trincomalee.
State of Sea:
The sea areas off the coast extending from Puttalam to Pottuvil via Colombo, Galle, Matara and Hambanthota will be rough at times.
The sea areas off the coast extending from Puttalam to Batticaloa via Mannar, Kankasanthurai and Trincomalee will be fairly rough at times.
The wave height may increase (about 2.0 – 2.5 m) in the sea areas off the coast extending from Puttalam to Pottuvil via Colombo, Galle and Hambantota (this is not for land area).
Naval and fishing communities are requested to be vigilant in this regard.
Temporarily strong gusty winds and very rough seas can be expected during thundershowers.
