7 day weather forecast

 Effective as of 4:00 PM Wednesday November 17 2021

View the latest severe weather warnings from BOM at http://www.bom.gov.au/wa/warnings/ .

Explanatory notes:

Tomorrow possible showers in the afternoon with atmospheric instability with steep vertical lapse rate with a cold pool aloft ahead of an upper level trough with the slight chance of a thunderstorm although instability remains fairly marginal for thunderstorm activity.

Plenty of clouds remain on Friday with the slight chance of a shower again with the cold pool remaining aloft.

Mostly sunny on Saturday with the cold pool aloft having contracted to the east.

Some clouds on Sunday with the slight chance of a shower in a moist onshore flow.

Fine conditions thereafter as subtropical high pressure ridge builds to the south.

Wednesday November 17:

City:

14-27  Degrees Celsius

Clouds clearing.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy clearing to a sunny afternoon.The chance of fog early.Winds east-southeasterly at 10-20 km/h tending south-southwesterly at 20-30 km/h in the afternoon.

Thursday November 18:

City:

14-25  Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 2 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A slight (30%) chance of a shower, most likely in the afternoon.The slight chance of a thunderstorm in the afternoon.Winds east-southeasterly at 15-25 km/h tending south-southeasterly at 20-30 km/h in the afternoon.

Friday November 19:

City:

13-23  Degrees Celsius

Partly to mostly cloudy

Chance of any rain:20%

Amount:Nil

Perth Metropolitan Area:

Partly to mostly cloudy.A slight (20%) chance of a shower.Winds southeasterly at 15-25 km/h.

Saturday November 20:

City:

12-27  Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.Winds east-northeasterly at 10-20 km/h tending south-southwesterly at 20-30 km/h in the afternoon.

Sunday November 21:

City:

13-23  Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.A slight(20%) chance of a shower.Winds south-southeasterly at 10-20 km/h becoming south-southwesterly at 20-30 km/h from late morning easing to 10-20 km/h at night.

Monday November 22:

City:

12-23  Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.Winds southerly at 10-25 km/h tending south-southwesterly at 20-30 km/h in the afternoon.

Tuesday November 23:

City:

11-27  Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

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

Wednesday November 24:

City:

15-31  Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

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

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

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).