Weather forecast for Perth effective as of 12:00 AM Sunday September 9

Weather forecast for Perth effective as of 12:00 AM Sunday September 9
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).

Perth experienced the wettest August in 50 years with 186.0 mm of rain so far!It was also the wettest winter month since June 2005 and the wettest winter in 15 years!


The slight chance of patches of fog early today with radiational cooling of moist low level air.Mostly sunny day,just the slight chance of a shower in the early hours in the southwest.

A cold front moves across the region on Monday.

"Anticyclone gloom" affects the region on Tuesday and Wednesday.

Sunday September 9:

City:

10-22 Degrees Celsius

Mostly sunny.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.A slight(20%) chance of a shower in the early hours in the southwest.Patches of fog possible early.Winds north-northeasterly at 5-15 km/h becoming west-northwesterly to westerly from afternoon,light at night.

Monday September 10:

City:

11-20 Degrees Celsius

Showers.

Chance of any rain:95%

Amount:2 to 5 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(95%) chance of showers.Winds west-northwesterly at 10-25 km/h shifting westerly at 20-30 km/h in the late morning,then southwesterly

Tuesday September 11:

City:

8-17 Degrees Celsius

Mostly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Mostly cloudy.A slight(20%) chance of a shower.Light winds tending south-southwesterly at 10-20 km/h in the afternoon.

Wednesday September 12:

City:

7-18 Degrees Celsius

Mostly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Mostly cloudy.A slight(20%) chance of a shower.Light winds tending west-southwesterly at 10-20 km/h in the afternoon.

Thursday September 13:

City:

9-20 Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Partly to mostly cloudy.A slight(30%) chance of a shower.Light winds.

Friday September 14:

City:

8-20 Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Light winds tending south-southwesterly at 10-20 km/h in the afternoon.

Saturday September 15:

City:

9-21 Degrees Celsius

Mostly sunny.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Light winds becoming southwesterly at 15-25 km/h from afternoon.

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.