Strong south-westerly winds of 40-50kph with waves up to 3.5 metres high are expected to hit the waters off Perlis, Kedah, and Penang from Friday to Tuesday.

In a statement today, the Meteorological Department said a similar scenario would also be experienced in the waters off Phuket, Reef North, Layang-layang and Palawan during the same period.

This condition is dangerous to small craft, recreational sea activities and sea sports, it said.

- Bernama