Possible of Wet Christmas Eve in Malaysia & Singapore 22 Dec 2011

On top of the earlier video update from Rob regarding the heavy rainfall in Malaysia and Singapore, here is the latest update on the monsoonal trough in the South East Asia. The peninsula Malaysia and Singapore is expected to have a wet Christmas Eve this year according to the latest run by the GFS model. It is forecast that some isolated rain and thunder storm is going to happen on the 24 December acroos the Peninsula Malaysia specifically on the East Coast (Kelantan, Terengganu and Pahang) and the Southern region of Malaysia ( all the way from Kuala Lumpur to Johor).

Currently, the Malaysia Met Department maintained a Orange Stage heavy rainfall warning for the Southern Region (States of Johor) of Peninsula Malaysia (issued on the 19 December 2011) and it is extended until late tomorrow evening (22nd December 2011) and a Yellow Stage heavy rainfall warning to the East Coast (States of Kelantan, Terengganu and Pahang) and to the Borneo states (Sabah and Sarawak) which is expected to end by 22nd December 2011.

The following diagram illustrate the cumulative amount of rainfall for the Peninsula Malaysia for the past 24 hour. It is obvious that the East Coast of Peninsula Malaysia is experiencing some heavy shower with cumulative rainfall of 240mm for the past 24 hour but no reports of flooding so far.

However, in the Southern region especially in the     states of Johor, the flood still continues in several area but the situation has improves.

A look at the data from TRMM (Tropical Rainfall Measuring Mission) indicating that the monsoonal trough in the South East Asia is still very much strong.

Heavy rainfall has scattered all across the South East Asia for the past 24 hour ranging from the Sothern Thailand (Narathiwat, Yala, Songkhla, Hatyaai, Trang), Peninsula Malaysia, to the Borneo states,The Southern Peninsula of Sumatera, Indonesia and even Philippines. Rainfall has been reported around the Luzon area and the coastal area of Philippines.

As for Brunei, fair weather as of today with some scattered thunderstorm in the afternoon and evening. Showers and thunderstorm is expected over the coastal area in upcoming few days.  Diagram below illustrate the Brunei NWP forecast for today’s weather.              

The potential of flooding due to this monsoonal season is still there. Therefore we would like to advice residents in these area to be aware of updates from the government agency and for flood hits area, please refrain your children from playing within the flood zone and keep proper monitoring in order to avoid any unwanted casualties.

We will keep you updated with latest information from time to time.

Stay safe and have a great day.

WestPac Wx South East Asia Caster – Francis –


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