It said that showers or thundershowers would occur over most parts of the island.
Heavy falls above 100mm can be expected at some places in the Northern, North-central, Uva, Southern, Western, Sabaragamuwa and Central provinces.
Fairly strong gusty winds up to 50kmph can be expected in the Western, Southern and Sabaragamuwa provinces.
Temporary localized strong winds during thundershowers are expected and the public is requested to take adequate precautions to minimize damages caused by lightning.