Weather forecast for Perth effective as of 12:00 AM Monday August 27

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

The chance of patches of fog early Monday morning with radiational cooling of moist low level air.Showers on Monday from afternoon as a low pressure trough moves across the region.

A strong cold front moves across the region on Tuesday with a deep cold air mass over the region on Wednesday.

Monday August 27:

City:

6-20 Degrees Celsius

PM showers.

Chance of any rain:70%

Amount:0.4 to 2 mm.

Perth metropolitan area:

Partly to mostly cloudy.Patches of fog possible early.A medium(60%) chance of showers over far southwestern areas,becoming a high(70%) chance of showers over all areas from afternoon.Light winds becoming west-northwesterly at 15-25 km/h by late morning,westerly at 10-20 km/h from afternoon,light at night.

Tuesday August 28:

City:

10-18 Degrees Celsius

Showers.Possible thunderstorm.

Chance of any rain:100%

Amount:15 to 30 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(100%) chance of rain and showers.The chance of a thunderstorm.Possible small hail from evening.Winds north-northwesterly at 15-25 km/h becoming northwesterly at 30-45 km/h,then west-northwesterly from afternoon.Gusty winds possible.

Wednesday August 29:

City:

8-17 Degrees Celsius

Showers.Possible thunderstorm.

Chance of any rain:95%

Amount:5 to 15 mm.

Perth metropolitan area:

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

Thursday August 30:

City:

8-17 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 southerly at 15-25 km/h.

Friday August 31:

City:

6-18 Degrees Celsius

Cloudy.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Cloudy.Light winds.

Saturday September 1:

City:

8-19 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Light winds.

Sunday September 2:

City:

8-21 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds east-southeasterly at 10-20 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.