Weather forecast for Perth effective as of 4:00 PM Monday March 12

Weather forecast for Perth effective as of 4:00 PM Monday March 12:

Explanatory notes:
Scroll down below this section for forecast. 

Figure 1.Surface synoptic chart at  06 UTC(2 PM local time today).Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 2.Key features identified on True Colour RGB satellite image at around 07:00 UTC(3 PM local time today).Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 3.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image at 06 UTC(2 PM local time today).Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 4:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

Some middle level clouds from until the early hours of Thursday with moist air aloft.Virga will likely occur at times from Tuesday with the slight chance of reaching the ground on Wednesday.Some high clouds also streaming in a subtropical jet stream.

A west coast trough lies near the west coast leading with a hot air mass over the region until Wednesday.

The west coast trough then moves inland on Wednesday afternoon with cooler air mass over the region thereafter.

A cold front likely moves over the region on Saturday bringing showers and possibly the coldest air mass over the region since spring last year.Then high pressure ridge rapidly builds to the south leading to clearing conditions.

The rest of Monday March 12:

City:

Mostly clear.

Chance of any rain:0%

Perth metropolitan area:

Mostly clear.Winds easterly at  10-20 km/h becoming east-southeasterly at night.

Tuesday March 13:

City:

24-36 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy,some high clouds.Winds east-northeasterly at 15-25 km/h becoming light from late afternoon becoming easterly at 15-25 km/h by late at night.

Wednesday March 14:

City:

25-34 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy,some high clouds.A slight(20%) chance of a shower most likely in the southwest.Winds northeasterly at 5-15 km/h becoming westerly at 20-30 km/h from around the middle of the day becoming southwesterly at 10-20 km/h from afternoon becoming south-southwesterly at night.

Thursday March 15:

City:

20-26 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy,some high clouds.A slight(20%) chance of showers.Winds southwesterly at 15-25 km/h increasing to 20-30 km/h during the day becoming south-southwesterly at 10-20 km/h at night.

Friday March 16:

City:

16-25 Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy,some high clouds.A slight(30%) chance of showers.Winds south-southeasterly at 10-20 km/h becoming southwesterly at 20-30 km/h in the afternoon becoming south-southwesterly at 15-25 km/h at night.

Saturday March 17:

City:

15-22 Degrees Celsius

Showers.

Chance of any rain:50%

Amount:0 to 1 mm.

Perth metropolitan area:

Partly cloudy.A medium(50%) chance of showers.Winds south-southwesterly at 30-40 km/h becoming southerly at 20-30 km/h at night.

Sunday March 18:

City:

10-25 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds south-southeasterly at 15-25 km/h.

Monday March 19:

City:

13-29 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds east-southeasterly at 20-30 km/h easing to 15-25 km/h from afternoon.

Forecast produced at 4:00 PM Monday March 12.Weather icons courtesy of the US National Weather Service.