Weather forecast for Perth effective as of 6:00 AM Sunday August 5

Weather forecast for Perth effective as of 6:00 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 earlier are contracting to the northwestern coastal areas and offshore.Mostly cloudy in the afternoon.

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

A cold front moves across the region early on Thursday with deep cold air mass over the region thereafter.

Sunday August 5:

City:

Max:16 Degrees Celsius

Partly to mostly cloudy.

Chance of any rain:20%

Amount(rest of today):0 mm.

Perth metropolitan area:

Partly to mostly cloudy.A slight(20%) chance of showers,most likely in northwestern suburbs.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.