Weather forecast for Perth effective as of 12:00 AM Thursday August 16

Weather forecast for Perth effective as of 12:00 AM Thursday August 16
Explanatory notes:
Scroll down below this section for forecast. 

Figure 1.Surface synoptic chart at 12 UTC(8 PM local time yesterday).Image courtesy of the Australian Bureau of Meteorology(BOM)

Figure 3.Key features identified on True Colour RGB satellite image at around 06:00 UTC(2 PM local time yesterday).Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 4.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image at 12 UTC(8 PM 
local time yesterday).Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 4:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

Another weak cold front brushes the region late on tonight/early on Friday.

Some uncertainty on the precise synoptic conditions from late next weekend with large variation between models and model ensembles.

Thursday August 16:

City:

8-18 Degrees Celsius

Showers increasing.

Chance of any rain:90%

Amount:0.2 to 2 mm.

Perth metropolitan area:

Partly cloudy.A medium(50%) chance of showers increasing to a high(80%) chance at night.Light winds tending westerly at 15-25 km/h during the day.

Friday August 17:

City:

9-18 Degrees Celsius

Early shower or two 

Chance of any rain:50%

Amount:0 to 1 mm.

Perth metropolitan area:

Partly cloudy.A medium(50%) chance of showers clearing during the early hours.Light winds.

Saturday August 18:

City:

6-19 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0  mm.

Perth metropolitan area:

Sunny.Winds east-northeasterly at 10-20 km/h.

Sunday August 19:

City:

9-24 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0  mm.

Perth metropolitan area:

Sunny.A slight(20%) chance of a shower.Winds northeasterly at 15-25 km/h becoming light by afternoon.

Monday August 20:

City:

10-21 Degrees Celsius

Possible showers.

Chance of any rain:40%

Amount:0 to 3 mm.

Perth metropolitan area:

Partly cloudy.A medium(40%) chance of showers.Light winds becoming southwesterly at 10-25 km/h from afternoon.

Tuesday August 21:

City:

10-18 Degrees Celsius

Showers.

Chance of any rain:50%

Amount:0 to 4 mm.

Perth metropolitan area:

Partly cloudy.A medium(50%) chance of showers.Winds south-southwesterly at 20-30 km/h.

Wedensday August 22:

City:

8-19 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of a shower.Winds south-southeasterly at 10-20 km/h.

Forecast for today produced at 12:00 AM,forecast for the rest of the days produced at 4:20 PM Wednesday July 11.Weather icons courtesy of the US National Weather Service.