Southern Selangor and Klang Valley are likely to be affected by the heavy rainfalls should the conditions persist, the Meteorological Department warned today.

According to Bernama , the department has issued these areas with a Red Stage warning, the most severe of the three-stage weather warning, and warned people to prepare and brace for the worst conditions.

A forecaster said heavy rainfall and thunderstorm was expected to persist in the Klang Valley until next Tuesday.

"The heavy rainfalls and wind condition that are currently affecting states in the east coast and Johor are expected to bring heavy downpour to the Klang Valley and its surrounding areas.

"Generally, the weather will be cloudy in the morning while heavy rains are expected in the afternoon and night, but I advise the public to update themselves with the weather forecast," she added.

Other areas that have also been issued with the Red Stage warning are the flood-hit states; Johor, Melaka, Negeri Sembilan, Kelantan, Terengganu and Pahang.

Strong winds

The intermittent but occasionally heavy rain occurring over Johor, Melaka, Negeri Sembilan, Kelantan, Terengganu and Pahang is expected to persist until this Sunday.

However, East Johor is likely to experience intermittent rain until next Wednesday.

According to the department's website, impacts that could be possibly caused by the weather in the Red Stage, are flooding over the low lying areas and areas by the river banks.

It added that strong wind with sustained wind speed of at least 60 kmph could also cause thatched and zinc roof to be blown off.

Meanwhile, the forecaster said the North Easterly Wind was now moving at a 60 to 70 kmph, with the wave height between 4.5 to 5.5 metre.

"The sea condition is very rough and dangerous for all marine activities, including small and medium size fishing boats," she said.