Weather forecast for Perth effective as of 8:00 PM Thursday August 23

Weather forecast for Perth effective as of 8:00 PM Friday August 24
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).

Cold air mass lies over the region.Cold morning today with radiational cooling of already cool air overnight.Sunny morning with some shallow convective clouds from late morning until late afternoon,
Dry weather over the next few with the subtropical high pressure ridge to the south of the region.

The rest of Friday August 24:

City:

Clear.

Chance of any rain:0%

Perth metropolitan area:

Clear.Light winds.

Saturday August 25:

City:

6-20 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Light winds tending south-southwesterly at 10-20 km/h in the afternoon.

Sunday August 26:

City:

7-22 Degrees Celsius

Sunny.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Sunny.Light winds.

Monday August 27:

City:

8-20 Degrees Celsius

Mostly sunny.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.A slight(20%) chance of a shower.Light winds.

Tuesday August 28:

City:

10-18 Degrees Celsius

Showers.

Chance of any rain:90%

Amount:8 to 15 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(90%) chance of showers.Winds north-northwesterly at 15-25 km/h shifting west-northwesterly in the afternoon.

Wednesday August 29:

City:

7-16 Degrees Celsius

Windy with showers.Possible thunderstorm.

Chance of any rain:90%

Amount:5 to 15 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(90%) chance of showers.The chance of thunderstorms and/or small hail.Winds west-northwesterly at 30-50 km/h shifting southwesterly later during the day.Gusty winds likely.

Thursday August 30:

City:

8-17 Degrees Celsius

Possible shower or two.

Chance of any rain:40%

Amount:0 to 3 mm.

Perth metropolitan area:

Partly to mostly cloudy.A medium(40%) chance of showers.Winds south-southwesterly at 20-30 km/h.

Friday August 31:

City:

8-18 Degrees Celsius

Partly to mostly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly to mostly cloudy.A slight(20%) chance of a shower.Light winds.

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.