Weather forecast for Perth effective as of 12:00 AM Friday August 3

Weather forecast for Perth effective as of 12:00 AM Friday August 3
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 southwesterly air steam led to showers on Thursday,continuing today.

Another cold front moves across the region in the evening/night.

Deep cold air mass lies over the region thereafter hence can't rule out possibility of thunderstorms and/or small hail until Saturday afternoon.

Friday August 3:

City:

12-19 Degrees Celsius

Windy at times.Showers increasing.

Chance of any rain:100%

Amount:8 to 20 mm.

Perth metropolitan area:

Mostly cloudy.A high(80%) chance of showers increasing to a very high(100%) chance of showers and rain from evening.The chance of a thunderstorm from evening.Winds westerly at 25-40 km/h.Gusty winds with showers.

Saturday August 4:

City:

9-15 Degrees Celsius

Showers

Chance of any rain:95%

Amount:2 to 8 mm.

Perth metropolitan area:

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

Sunday August 5:

City:

7-16 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.Winds south-southwesterly at 10-25 km/h.

Monday August 6:

City:

6-17 Degrees Celsius

Cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Cloudy.A slight(20%) chance of showers and/or drizzle.Light winds tending west-northwesterly at 10-20 km/h during the day.

Tuesday August 7:

City:

11-20 Degrees Celsius

Showers increasing.

Chance of any rain:70%

Amount:0.4 to 3 mm.

Perth metropolitan area:

Mostly cloudy.A high(70%) chance of showers especially at night.Winds westerly at 15-25 km/h.

Wednesday August 8:

City:

12-19 Degrees Celsius

Windy with showers.

Chance of any rain:90%

Amount:4 to 10 mm.

Perth metropolitan area:

Mostly cloudy.A very high(90%) chance of showers.The chance of a thunderstorm.Winds west-northwesterly at 20-30 km/h increasing to 35-50 km/h becoming southwesterly at night.Gusty winds likely.

Thursday August 9:

City:

8-16 Degrees Celsius

Windy with showers.

Chance of any rain:90%

Amount:4 to 10 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(90%) chance of showers.The chance of a thunderstorm.Winds southwesterly at 35-50 km/h.Gusty winds likely.

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.