Weather forecast for Perth effective as of 6:00 PM Sunday April 29

Weather forecast for Perth effective as of 6:00 PM Sunday April 29:

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 today).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).

Moist low level air advected over the region from the southeast last night.This resulted in the formation of low level clouds east and over the Darling Scarp,which advected westwards resulting in a spectacular 'waterfall" katabatic effect down the slope of the hills on Saturday morning.


Warm air advection with a west coast trough deepening near the west coast again from Sunday result in a warm Sunday.

The west coast trough moves inland around the middle of the day on Monday resulting in an afternoon sea breeze with lower temps.


Typical late autumn weather from Tuesday as a colder air mass moves over the region with some cold air advection.

The rest of Sunday April 29:

City:

Clear.

Chance of any rain:0%

Perth metropolitan area:

Clear.Light winds becoming east-northeasterly at 10-20 km/h at night.

Monday April 30:

City:

17-29 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.A slight(30%) chance of a shower over coastal suburbs night,grading to a near zero chance inland.Winds northeasterly at 20-30 km/h becoming northerly from mid morning becoming westerly at 20-30 km/h from early afternoon becoming south-southwesterly from late afternoon.

Tuesday May 1:

City:

13-21 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0  mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of showers most likely near the coast.Winds south-southwesterly at 15-25 km/h.

Wednesday May 2:

City:

11-20 Degrees Celsius

Possible showers

Chance of any rain:40%

Amount:0 to 1 mm.

Perth metropolitan area:

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

Thursday May 3:

City:

8-21 Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Light winds.

Friday May 4:

City:

9-23 Degrees Celsius

High clouds(mostly sunny).

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

High clouds(mostly sunny).Winds east-northeasterly at 10-20 km/h becoming light from afternoon becoming southeasterly at 10-20 km/h from late afternoon.

Saturday May 5:

City:

11-25 Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds east-northeasterly at 10-20 km/h becoming light from afternoon.

Sunday May 6:

City:

12-25 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of a shower.Winds west-northwesterly at 10-25 km/h.

Forecast produced at 6:00 PM Sunday April 29.Weather icons courtesy of the US National Weather Service.