7 day weather forecast

Effective as of 12:00 AM Friday April 23 2021

Explanatory notes:

Plenty of high clouds over the region ahead of an upper level trough.

The west coast trough is deepening off the west coast with warm air advection and is expected to move slightly inland from Saturday afternoon, remaining very near the coast and moving back and forth, this means that the marine layer is expected to advect inland from Saturday afternoon, the possibility of fog and low cloud early on Sunday and Monday but still some uncertainty on the details.

Some smoke haze from prescribed burns is still possible but is less likely given that the gradient flow shifts to be northeasterly today and northwesterly from Saturday, any smoke haze then is likely to  come prescribed burns to the north particularly over the Gnangara-moore River State Forest.

Warm afternoons over the next few days with the warm air mass over the region but cool to cold mornings given the lengthening nights as the season progresses.

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Friday April 23:

City:

15-28  Degrees Celsius

Partly to mostly cloudy.

Chance of any rain:0%

Amount:Nil.

Perth Metropolitan Area:

Partly to mostly cloudy.Winds easterly at 15-25 km/h becoming northeasterly in the morning tending south-southwesterly at 10-20 km/h in the afternoon becoming light at night.​

Saturday April 24:

City:

15-29  Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:Nil.

Perth Metropolitan Area:

Partly cloudy.Light winds becoming northeasterly at 10-20 km/h in the morning becoming northwesterly then gradually becoming southwesterly at 10-20 km/h in the afternoon becoming light at night.

Sunday April 25:

City:

13-28  Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:Nil.

Perth Metropolitan Area:

Mostly sunny.Light winds tending southwesterly at 10-20 km/h during the afternoon.

Monday April 26:

City:

13-30  Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:Nil.

Perth Metropolitan Area:

Partly cloudy.Light winds tending south-southwesterly at 10-20 km/h in the afternoon.

Tuesday April 27:

City:

15-28  Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:Nil.

Perth Metropolitan Area:

Partly cloudy.Light winds tending southwesterly at 10-20 km/h in the afternoon.

Wednesday April 28:

City:

14-28  Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:Nil.

Perth Metropolitan Area:

Partly cloudy.Light winds tending southwesterly at 10-20 km/h in the afternoon.

Thursday April 29:

City:

15-26  Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:Nil.

Perth Metropolitan Area:

Partly cloudy.A slight(20%) chance of a shower most likely from afternoon.Light winds becomign west-southwesterly at 10-20 km/h later during the day.

Charts:

                                   

Figure 1.Surface synoptic chart.Image courtesy of the Australian Bureau of Meteorology(BOM).

 2. 

Figure 2.Key features identified on True Colour RGB satellite image.Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 3.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image. Image courtesy of the Australian Bureau of Meteorology(BOM)

Figure 4:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

No liabilities held from information consumed on this site. Weather icons are from the US National Weather Service.Some information on this site is from the Australian Bureau of Meteorology (BOM).