Weather forecast for Perth effective as of 12:00 AM Monday August 6

Weather forecast for Perth effective as of 12:00 AM Monday August 6
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"affects the region on Monday with possible showers drizzle most likely from afternoon.

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

Monday August 6:

City:

5-17 Degrees Celsius

Drizzle and showers developing.

Chance of any rain:50%

Amount:0 to 0.6 mm.

Perth metropolitan area:

Cloudy.A medium(50%) 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

Showers.

Chance of any rain:60%

Amount:0 to 1 mm.

Perth metropolitan area:

Mostly cloudy.A medium(60%) chance of showers and drizzle.Winds westerly at 10-20 km/h.

Wednesday August 8:

City:

11-20 Degrees Celsius

Showers.

Chance of any rain:90%

Amount:2 to 6 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:

12-16 Degrees Celsius

Rain then showers,possible PM thunderstorm.

Chance of any rain:100%

Amount:10 to 25 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(100%) chance of rain becoming showers in the morning.The chance of thunderstorms and/or small hail from afternoon.Winds northwesterly at 25-40 km/h shifting southwesterly at 30-45 km/h in the morning.Gusty winds possible.

Friday August 10:

City:

5-15 Degrees Celsius

Early showers.

Chance of any rain:60%

Amount:0 to 2 mm.

Perth metropolitan area:

Partly cloudy.A medium(60%) chance of showers in the early hours.Winds southerly at 20-30 km/h.

Saturday August 11:

City:

3-16 Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Areas of early frost possible over the hills and in hollow areas.Light winds.

Sunday August 12:

City:

4-19 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds northeasterly at 10-20 km/h becoming northerly in the morning.

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.