Monday 4 December 2017

Weather forecast for Kuala Lumpur produced at 10:30 PM Monday December 4

Kuala Lumpur weather forecast produced at 10:30 PM Monday December 4:

Explanatory notes:

A mesoscale convective system affects the region in the next few hours.

A somewhat westerly steering flow until Wednesday with the monsoon trough aloft slightly to the north.

Chances of rain increases late during the working week as the monsoon trough aloft moves south and the steering flow shifts to become from the northeast.

Late during the weekend prospects of raon depend on what tropical cyclone over Western Pacific does.If it lies near the Philiphines like the ECMWF suggests then relatively dry and stable air with dry air advection with north-northeasterly winds hence relatively dry.

But if the tropical cyclone lies further to the east like GFS suggests then wet.


Monday December 4:

Precis forecast:Possible showers and thunderstorms.
Partly cloudy.A medium(60%) chance of showers and thunderstorms over western and coastal areas,a medium (40%) chance elsewhere.Light winds but gusty winds possible with showers and thunderstorms.
Chance of any rain:40%

Tuesday December 5:

25-34 Degrees Celsius
Precis forecast:Possible showers and thunderstorms.
Partly cloudy.A medium(60%) chance of showers and thunderstorms during the early hours over western and coastal areas,a medium(40%) chance elsewhere.A medium(40%) chance of showers and thunderstorms between afternoon to early night over north,east and central areas,a slight(20%) chance elsewhere.Light winds.
Chance of any rain:40%

Wednesday December 6:


25-34 Degrees Celsius
Precis forecast:Possible afternoon and evening showers and thunderstorms.
Partly cloudy.A slight(30%) chance of showers and thunderstorms during the early hours and morning over coastal areas,a slight(20%) chance elsewhere.A medium(40%) chance of showers and thunderstorms between afternoon to early night over north,east and central areas,a slight(20%) chance elsewhere.Light winds.
Chance of any rain:40%


Thursday December 7:

24-33 Degrees Celsius
Precis forecast:Afternoon and evening showers and thunderstorms.
Partly cloudy.A slight(20%) chance of showers and thunderstorms during the early hours and morning over coastal areas,grading to a slight(20%) chance over inland areas.A high(70%) chance of showers and thunderstorms over north,east and central areas,a medium(50%) chance elsewhere.Light winds except with showers and thunderstorms.
Chance of any rain:70%

Friday December 8:

24-33 Degrees Celsius
Precis forecast:Afternoon and evening showers and thunderstorms.
Partly cloudy.A high(70%) chance of showers and thunderstorms between afternoon to early night over north,east and central areas,a medium(50%) chance elsewhere.Light winds except with showers and thunderstorms.
Chance of any rain:70%


Saturday December 9:


24-33 Degrees Celsius

Precis forecast:Afternoon and evening showers and thunderstorms.
Partly cloudy.A high(70%) chance of showers and thunderstorms between afternoon to early night over north,east and central areas,a medium(50%) chance elsewhere.Light winds except with showers and thunderstorms.
Chance of any rain:70%


Sunday December 10:


24-33 Degrees Celsius


Precis forecast:Possible afternoon and evening showers and thunderstorms.
A medium(40%) chance of showers and thunderstorms between afternoon to early night over north,east and central areas,a slight(20%) chance elsewhere.Light winds.
Partly cloudy.
Chance of any rain:40%



Monday December 11:



25-33 Degrees Celsius

Precis forecast:Possible afternoon and evening showers and thunderstorms.
A medium(40%) chance of showers and thunderstorms between afternoon to early night over north,east and central areas,a slight(20%) chance elsewhere.Light winds.
Partly cloudy.
Chance of any rain:40%


Forecast produced at 10:30 PM Monday December 4.Weather icons courtesy of the US National Weather Service.