Weather forecast for Perth effective as of 12:00 AM Sunday August 5

Weather forecast for Perth effective as of 12:00 AM Sunday August 5
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).

Showers during the early hours today with a cold southwesterly air stream clearing to just a slight chance by morning with a more southerly/southeasterly flow.Mostly cloudy in the afternoon.

"Anticyclone gloom" lies over the region on  Monday with possible drizzle most likely from afternoon.

Sunday August 5:

City:

6-16 Degrees Celsius

Early showers.

Chance of any rain:70%

Amount:0.2 to 2 mm.

Perth metropolitan area:

Partly to mostly cloudy.A high(70%) chance of showers during the early hours easing to a slight(20%) chance by morning.Winds southerly at 10-20 km/h increasing to 15-30 km/h from around the middle of day day becoming light at night.

Monday August 6:

City:

4-17 Degrees Celsius

Possible drizzle.

Chance of any rain:30%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Cloudy.A slight(30%) chance of light showers and/or drizzle most likely from afternoon.Light winds becoming west-northwesterly at 10-20 km/h from around the middle of the day.

Tuesday August 7:

City:

11-19 Degrees Celsius

Shower or two.

Chance of any rain:50%

Amount:0 to 1 mm.

Perth metropolitan area:

Mostly cloudy.A medium(50%) chance of showers especially at night.Winds westerly at 10-25 km/h.

Wednesday August 8:

City:

11-20 Degrees Celsius

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.Winds northwesterly at 10-20 km/h increasing to 20-30 km/h from late morning.

Thursday August 9:

City:

10-16 Degrees Celsius

Showers.Possible thunderstorm.

Chance of any rain:95%

Amount:10 to 25 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(95%) chance of showers.The chance of thunderstorms and/or small hail during the day.Winds southwesterly at 30-45 km/h.Gusty winds possible.

Friday August 10:

City:

5-16 Degrees Celsius

Possible shower or two.

Chance of any rain:40%

Amount:0 to 2 mm.

Perth metropolitan area:

Partly cloudy.A medium(40%) chance of showers.Winds southerly at 10-25 km/h.

Saturday August 11:

City:

6-17 Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds southerly at 10-25 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.