Weather forecast for Perth effective as of 2:00 AM Saturday July 28

Weather forecast for Perth effective as of 2:00 AM Saturday July 28
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).

"Anticyclone gloom" with cloudy conditions and showers and/or drizzle affected the region on Friday.

A weak cold front brushed the region  at night bringing showers.Partly to mostly conditions for the Perth and Fremantle by elections.

Another cold front brushes the region late on Sunday/early on Monday with a strong cold front likely affecting the region on Wednesday with a deep cold air mass over the region thereafter.

Saturday July 28:

City:

9-18 Degrees Celsius

Partly to mostly cloudy.

Chance of any rain:10%

Amount:0  mm.

Perth metropolitan area:

Partly to mostly cloudy.Light winds.

Sunday July 29:

City:

7-19 Degrees Celsius

PM showers.

Chance of any rain:90%

Amount:1 to 2 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(90%) chance of showers from afternoon,most likely at night.Winds west-northwesterly at 10-20 km/h.

Monday July 30:

City:

10-18 Degrees Celsius

Pre dawn showers.

Chance of any rain:90%

Amount:0.4 to 2 mm.

Perth metropolitan area:

Partly cloudy.A very high(90%) chance of showers easing to a slight(20%) chance from morning.Light winds.

Tuesday July 31:

City:

6-19 Degrees Celsius

Possible shower or two.

Chance of any rain:40%

Amount:0 to 1 mm.

Perth metropolitan area:

Partly to mostly cloudy.A medium(40%) chance of showers.Winds northwesterly at 15-25 km/h.

Wednesday August 1:

City:

11-16 Degrees Celsius

Windy with showers.Possible thunderstorms.

Chance of any rain:100%

Amount:8 to 20 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(100%) chance of showers.The chance of thunderstorms and/or small hail.Winds west-southwesterly at 35-50 km/h becoming southwesterly.Gusty winds likely.

Thursday August 2:

City:

7-15 Degrees Celsius

Showers.Possible AM thunderstorms.

Chance of any rain:95%

Amount:4 to 10 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(95%) chance of showers.The chance of thunderstorms and/or small hail.Winds southwesterly at 25-40 km/h.

Friday August 3:

City:

10-18 Degrees Celsius

Showers.

Chance of any rain:80%

Amount:4 to 10 mm.

Perth metropolitan area:

Partly to mostly cloudy.A high(80%) chance of showers.Winds southwesterly at 20-35 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.