Weather forecast for Perth effective as of 12:30 AM Tuesday April 3

Weather forecast for Perth effective as of 12:30 AM Tuesday April 3:

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 4.Key features identified on True Colour RGB satellite image at around 07:00 UTC(3 PM local time yesterday).Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 5.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 6:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

A warm air mass lied over the region on Monday with the west coast trough slightly offshore.

The west coast trough moves inland from around the middle of the day today bringing a sea breeze,advecting the marine layer inland.Marine layer clouds likely from around 5 PM,from the coast first as predicted by ACCESS models.ECMWF has a sunny/clear bias in these scenario.

The radiational cooling of the moist marine layer overnight brings the possibility of areas of fog early on Wednesday,most likely in the north and east where the winds are lighter.

Southerly pressure gradient "bends" with solar heating on Wednesday leading to a significant sea breeze in the afternoon and evening with weaker pressure gradients towards the end of the working week leading to lighter winds by Friday.

Pressure gradient likely strengthens during the weekend leading to slightly stronger sea breezes.

The rest of Tuesday April 3:

City:

19-32 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Light winds becoming south-southwesterly at 10-25 km/h from afternoon becoming light later at night.

Wednesday April 4:

City:

17-28 Degrees Celsius

Clouds clearing.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy becoming sunny by afternoon.Areas of fog possible in the north and east clearing by 8 AM.Winds southerly at 10-20 km/h tending southwesterly at 20-30 km/h in the afternoon and evening.

Thursday April 5:

City:

16-28 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds east-southeasterly at 5-15 km/h tending southwesterly at 15-25 km/h in the afternoon and evening becoming light at night.

Friday April 6:

City:

16-29 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Light winds becoming south-southwesterly at 10-20 km/h becoming light at night.

Saturday April 7:

City:

16-26 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 around the middle of the day easing to south-southwesterly at 10-20 km/h at night.

Sunday April 8:

City:

15-27 Degrees Celsius

Mostly sunny.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds south-southeasterly at 5-15 km/h becoming south-southwesterly at 20-30 km/h from afternoon easing to 15-25 km/h at night.

Monday April 9:

City:

15-25 Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds south-southeasterly at 10-20 km/h becoming south-southwesterly at 20-30 km/h from afternoon easing to 15-25 km/h at night.

Forecast for today produced at 12:30 Am,forecast for the rest of the days produced at 7:00 PM Monday April 2.Weather icons courtesy of the US National Weather Service.