Weather forecast for Perth effective as of 4:00 PM Monday April 23

Weather forecast for Perth effective as of 4:00 PM Monday April 23:

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).

Post cold frontal showers affected the region for the first half of today before the showers contracted offshore in the afternoon with low level wind divergence slightly offshore with a sea breeze.

Early on Tuesday land breeze convergence results in a line of convective clouds offshore,the anvil from those clouds could spread inland but only the very slight chance of light showers and/or drizzle over coastal areas in the early hours and morning.

Sunny by Wednesday with a high pressure ridge to the south,a west coast trough deepens near the west coast leading to some warm air advection,west coast trough moves inland from Thursday afternoon.

Some high clouds on Thursday and Friday ahead of an upper/middle level trough/disturbance.

Warm air advection with a west coast trough deepening near the west coast again next weekend.High clouds again on Sunday.

The rest of Monday April 23:

City:

Partly cloudy.

Chance of any rain:10%

Perth metropolitan area:

Partly cloudy.Winds southwesterly at 15-25 km/h becoming light at night.

Tuesday April 24:

City:

11-22 Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of light showers or drizzle over coastal areas int he early hours and morning.Light winds becoming south-southwesterly at 10-20 km/h from afternoon becoming south-southeasterly at 10-20 km/h at night.

Wednesday April 25:

City:

11-24 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds east-southeasterly at 10-20 km/h tending south-southwesterly at 10-25 km/h in the afternoon and evening becoming south-southeasterly at 10-20 km/h at night.

Thursday April 26:

City:

13-27 Degrees Celsius

High clouds(partly cloudy).

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

High clouds(partly cloudy).Winds east-northeasterly at 10-20 km/h becoming south-southwesterly at 10-20 km/h from afternoon becoming southerly at night.

Friday April 27:

City:

14-25 Degrees Celsius

Mostly sunny.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds south-southeasterly at 10-20 km/h tending south-southwesterly at 15-25 km/h in the afternoon and evening.

Saturday April 28:

City:

13-26 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds east-southeasterly at 15-25 km/h becoming light from afternoon.

Sunday April 29:

City:

15-28 Degrees Celsius

High clouds(partly cloudy).

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

High clouds(partly cloudy).Winds east-northeasterly at 15-25 km/h becoming light from afternoon.

Monday April 30:

City:

15-24 Degrees Celsius

Possible showers.

Chance of any rain:30%

Amount:0 to 1 mm.

Perth metropolitan area:

Partly cloudy.A slight(30%) chance of showers.Winds south-southwesterly at 15-25 km/h.

Forecast produced at 4:00 PM Monday April 23.Weather icons courtesy of the US National Weather Service.