Weather forecast for Perth effective as of 12:00 AM Monday September 17

Weather forecast for Perth effective as of 12:00 AM Monday September 17
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!

Yesterday morning was cold with radiational cooling of dry air.

A cold front moved across the region with a cold air mass over the region today.

Monday September 17:

City:

7-17 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 most likely near the coast.Winds southeasterly at 10-20 km/h tending south-southwesterly at 20-30 km/h in the afternoon.

Tuesday September 18:

City:

6-19 Degrees Celsius

Clouds developing.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny morning becoming partly to mostly cloudy in the afternoon.Light winds tending south-southwesterly at 15-25 km/h in the afternoon becoming south-southeasterly at 5-15 km/h at night.

Wednesday September 19:

City:

7-21 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Light winds tendingsouthwesterly at 10-20 km/h during the afternoon.

Thursday September 20:

City:

8-25 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Light winds.

Friday September 21:

City:

9-25 Degrees Celsius

High clouds(mostly sunny).

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

High clouds(mostly sunny).Light winds tending south-southwesterly at 10-20 km/h during the day.

Saturday September 22:

10-24 Degrees Celsius

Mostly sunny.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

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

Sunday September 23:

11-22 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 showers.Winds westerly 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.