Weather forecast for Perth effective as of 12:00 AM Tuesday March 6

Weather forecast for Perth effective as of 12:00 AM Tuesday March 6:

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 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 06 UTC(2 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).

A west coast trough deepened and lied offshore on Monday suppressing sea breezes except over coastal areas.The hot air mass over the region with the west coast trough led to maximum temperatures of 35.9 Degrees Celsius at Perth Metro site.

Hot conditions again today before the west coast trough moves inland easing temperatures a little but increasing humidity as the marine layer advects inland.

The chance of showers and thunderstorms inland of the sea breeze front during the afternoon and evening,most likely over the north and east with relatively steep vertical lapse rates.Nevertheless there will be plenty of convective clouds contracting towards the hills later during the afternoon as the marine layer penetrates inland.

A strong somewhat easterly pressure gradient reestablishes over the region again from next weekend.Though plenty of uncertainty on how hot the air mass will be with plenty of variation between ensemble members and models.

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

The rest of Tuesday March 6:

City:

24-36 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of a shower or thunderstorm in the southwest in the morning.A slight(30%) chance of showers and thunderstorms in the afternoon and evening in the north and east,grading to a near zero chance in the far southwest.Winds northeasterly at 20-30 km/h becoming northwesterly at 10-20 km/h from around the middle of the day becoming west-southwesterly at 10-20 km/h from afternoon becoming southwesterly and light at night.

Wednesday March 7:

City:

20-32 Degrees Celsius

Clouds easing.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy in the early hours and morning becoming mostly sunny by late morning.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

Becoming sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

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

Friday March 9:

City:

19-32 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

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

Saturday March 10:

City:

18-32 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds southeasterly at 20-30 km/h.

Sunday March 11:

City:

17-30 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.

Monday March 12:

City:

18-31 Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds easterly at 20-30 km/h.

Forecast produced at 6:00 PM Monday March 5.Weather icons courtesy of the US National Weather Service.