Weather forecast for Perth effective as of 1:00 AM Thursday March 15

Weather forecast for Perth effective as of 1:00 AM Thursday March 15:

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 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).

A rain band lied over the region on Wednesday morning ahead of an upper/middle level trough/disturbance,with further upper/middle level clouds after that and some showers from the middle level clouds at night.

The slight chance of showers today until afternoon with some middle level clouds in the morning and also a moist low level southwesterly air stream.

A cold front likely moves over the region on Saturday possibly bringigng showers and a colder air mass.Then high pressure ridge rapidly builds to the south leading to clearing conditions.

A west coast trough possibly forms near the west coast next week leading to slight warm air advection but how hot the air mass will be is limited by the reduced autumn insolation.

Tuesday was the hottest day of the year so far and the hottest day in more than a year with a maximum temperature of 38.5 Degrees Celsius recorded at the Perth metro station,the highest since February 25 2017!

The unusual situation was that the hottest day of the year was recorded outside of meteorological summer which has not happened since 2007.

Thursday March 15:

City:

20-26 Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Partly cloudy,some high clouds.A slight(30%) chance of showers.Winds south-southwesterly at 5-15 km/h increasing to southwesterly at 15-25 km/h from late morning easing to south-southwesterly at 5-15 km/h at night.

Friday March 16:

City:

16-26 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy,some high clouds.A slight(30%) chance of showers.Winds southeasterly at 5-15 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:

15-23 Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Partly cloudy.A slight(30%) chance of showers.Winds south-southeasterly at 5-15 km/h becoming south-southwesterly at 20-35 km/h during the day becoming southerly at 15-25 km/h at night.

Sunday March 18:

City:

11-26 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds southeasterly at 5-15 km/h becoming south-southwesterly at 20-30 km/h in the afternoon becoming south-southeasterly at 10-25 km/h at night.

Monday March 19:

City:

14-30 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds east-southeasterly at 20-30 km/h tending southeasterly at 10-20 km/h in the afternoon and evening.

Tuesday March 20:

City:

16-32 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 during the day.

Wednesday March 21:

City:

20-34 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 during the day.

Forecast for today produced at 1:00 AM,forecast for the rest of the days produced at 4:00 PM Wednesday March 14.Weather icons courtesy of the US National Weather Service.