Weather forecast for Perth effective as of 5:00 PM Thursday May 3

Weather forecast for Perth effective as of 5:00 PM Thursday May 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 2.Key features identified on True Colour RGB satellite image at around 06:00 UTC(2 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 cold air mass lied over the region today.A smoke plume lies aloft trapped under a temperature inversion.

Radiational cooling of already cool air results in a chilly morning on Friday.Minimum temperatures could drop below 5 Degrees Celsius in hollow areas!

Warm conditions back by Saturday with a warm air mass over the region.

Another cold front moves over the region on Sunday.

The rest of Thursday May 3:

City:

Mostly clear.

Chance of any rain:10%

Perth metropolitan area:

Mostly clear.Areas of smoke haze possible.Winds south-southwesterly at 20-30 km/h becoming light at night.

Friday May 4:

City:

7-22 Degrees Celsius

High clouds(mostly sunny).

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

High clouds(mostly sunny).Light winds becoming east-northeasterly at 5-15 km/h in the morning becoming southwesterly at 10-20 km/h in the afternoon becoming east-southeasterly at night.

Saturday May 5:

City:

10-28 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds east-northeasterly at 10-25 km/h becoming north-northeasterly from early afternoon then becoming light.

Sunday May 6:

City:

17-24 Degrees Celsius

Showers.

Chance of any rain:95%

Amount:3 to 10 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(95%) chance of showers.The chance of a thunderstorm.Winds northwesterly at 25-40 km/h becoming westerly later then southwesterly.

Monday May 7:

City:

14-22 Degrees Celsius

Possible early shower.

Chance of any rain:30%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Partly cloudy.A slight(30%) chance of showers in the early hours and morning.Winds south-southeasterly at 10-20 km/h.

Tuesday May 8:

City:

11-23 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds easterly at 10-20 km/h tending light in the afternoon.

Wednesday May 9:

City:

13-25 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds east-northeasterly at 10-25 km/h tending light in the afternoon and evening.

Thursday May10:

City:

15-25 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds northeasterly at 15-25 km/h shifting west-northwesterly during the day.

Forecast produced at 5:00 PM Thursday May 3.Weather icons courtesy of the US National Weather Service.