Weather forecast for Perth effective as of 12:00 AM Friday July 27

Weather forecast for Perth effective as of 12:00 AM Friday July 27
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 affects the region today.

A weak cold front brushing the region late at night,showers clearing during the early hours(pre dawn) of Saturday.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.

Friday July 27:

City:

12-18 Degrees Celsius

Showers and drizzle

Chance of any rain:90%

Amount:1 to 3 mm.

Perth metropolitan area:

Mostly cloudy.A very high(90%) chance of showers and drizzle.Light winds becoming west-southwesterly at 10-20 km/h from around the middle of the day becoming light at night.

Saturday July 28:

City:

7-18 Degrees Celsius

Possible pre dawn shower or two.

Chance of any rain:40%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Partly to mostly cloudy.A medium(40%) chance of showers in the early hours.Light winds.

Sunday July 29:

City:

7-19 Degrees Celsius

PM showers.

Chance of any rain:90%

Amount:1 to 3 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

Showers easing.

Chance of any rain:90%

Amount:1 to 3 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(90%) chance of showers easing to a slight(30%) chance from morning.Light winds.

Tuesday July 31:

City:

7-19 Degrees Celsius

Possible shower or two.

Chance of any rain:40%

Amount:0 to 2 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:

11-17 Degrees Celsius

Windy with showers.

Chance of any rain:100%

Amount:5 to 15 mm.

Perth metropolitan area:

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

Thursday August 2:

City:

9-17 Degrees Celsius

Showers.

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.Winds west-southwesterly at 25-40 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.