7 day weather forecast

 Effective as of 4:00 AM Saturday September 19 2020

Explanatory notes:

Saturday September 19:

City:

10-18 Degrees Celsius

Windy with showers.

Chance of any rain:100%

Amount:3 to 8 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A very high (100%) chance of showers.The chance of a thunderstorm and/or small hail from afternoon.Light winds shifting southwesterly at 20-30 km/h in the morning increasing to 25-40 km/h in the afternoon.Gusty winds from afternoon.

Sunday September 19:

City:

9-17 Degrees Celsius

Windy with showers.

Chance of any rain:90%

Amount:2 to 5 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A very high (90%) chance of showers.The chance of small hail until afternoon.Winds southwesterly at 25-40 km/h.Gusty winds.

Monday September 20:

City:

9-18 Degrees Celsius

Possible light shower

Chance of any rain:30%

Amount:0 to 0.6 mm

Perth Metropolitan Area:

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

Tuesday September 21:

City:

9-21 Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.A slight (30%) chance of showers.Light winds.

Wednesday September 22:

City:

9-27 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Sunny.Winds easterly at 10-25 km/h becoming northeasterly in the morning becoming light from afternoon.

Thursday September 23:

City:

13-28 Degrees Celsius

Partly cloudy.

Chance of any rain:10%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.Winds east-northeasterly at 20-30 km/h.

Friday September 24:

City:

13-22 Degrees Celsius

Showers.

Chance of any rain:70%

Amount:4 to 10 mm

Perth Metropolitan Area:

Partly to mostlycloudy.A high(70%) chance of showers.The chance of thunderstorms.Winds northwesterly at 10-25 km/h.

Charts:

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).