The Department of Meteorology states that the current low pressure area in the Bay of Bengal will move heavily towards the East and North East.
The Meteorological Department said that wind speeds in those sea areas could increase up to 60-70 kmph at times and there could be showers or thundershowers.
The Meteorological Department warns that there will be thundershowers in the sea areas around the island today (18).
The Met Department predicts heavy showers in the Ratnapura, Nuwara Eliya, Galle, Matara and Kalutara districts as well.