Weather forecast for Perth effective as of 4:00 AM Monday March 5

Weather forecast for Perth effective as of 4:00 AM Monday March 5:

Explanatory notes:
Scroll down below this section for forecast. 

Figure 1.Surface synoptic chart at  18 UTC(2 AM 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 yesterday).Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 3.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image at 18 UTC(2 AM 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).

Easterly pressure gradient has rapidly reestablished over the region with a strong subtropical high pressure ridge  lying south of the region.

A west coast trough deepened near the west coast on Sunday with some warm air advection.

The west coast trough continues to deepen today,remaining offshore suppressing sea breezes with further warm air advection.

Especially hot conditions with very hot conditions over inland coastal plain areas on Tuesday before the west coast trough moves inland.

The marine layer advects onshore from Tuesday afternoon as the west coast trough moves inland.

A strong somewhat easterly pressure gradient probably reestablishes over the region again from next weekend.

We had the first summer without a 40+ Degree day at the Perth metro station since the summer of 2001-2002.

Monday March 5:

City:

19-36 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds east-northeasterly at 20-30 km/h easing to 15-25 km/h from afternoon.


Tuesday March 6:

City:

23-37 Degrees Celsius

Hot and mostly sunny.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Hot and mostly sunny.Winds northeasterly at 20-30 km/h becoming light from around the middle of the day becoming west-southwesterly at 10-20 km/h from late afternoon becoming southwesterly and light at night.

Wednesday March 7:

City:

21-31 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Light winds becoming southwesterly at 15-25 km/h from afternoon becoming south-southwesterly at 10-20 km/h at night.

Thursday March 8:

City:

19-33 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

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

Friday March 9:

City:

19-33 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Light winds becoming south-southwesterly at 20-35 km/h from afternoon becoming south-southeasterly at 20-30 km/h at night.

Saturday March 10:

City:

17-32 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds southeasterly at 15-30 km/h.

Sunday March 11:

City:

16-30 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds east-southeasterly at 20-30 km/h.

Forecast for today produced at 4:00 AM,forecast for the rest of the days produced at 8:00 PM Sunday March 4.Weather icons courtesy of the US National Weather Service.