7 day weather forecast

 Effective as of 12:00 AM Friday April 30 2021

Explanatory notes:

A pre-frontal trough moved over the region bringing some showers and thunderstorms on Thursday afternoon.

A cold front moved through the region in the evening bringing further rain and showers.

Still possible showers in the cold air mass in the next few hours clearing by mid morning with the high pressure ridge building to the south.

Fine conditions during the weekend with the subtropical high pressure ridge to the south.

Some showers and thunderstorms are expected on Tuesday with further showers, possible thunderstorm on Wednesday and even possibly late on Monday, associated with an upper level low and associated developing surface low. Some uncertainty on the details this far out in time, once the upper level low and associated cold pool moves to the east, thunderstorm chances diminishes but further stream showers are likely to continue in the moist onshore flow through the end of the forecast period.

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Friday April 30:

City:

12-20  Degrees Celsius

Possible early shower or two clearing.

Chance of any rain:40%

Amount:0 to 1 mm

Perth Metropolitan Area:

A medium (40%) chance of showers early clearing to a mostly sunny day.Winds south-southwesterly at 20-30 km/h becoming southeasterly at 10-20 km/h before dawn tending south-southwesterly at 15-25 km/h in the afternoon.

Saturday May 1:

City:

8-22  Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.Light winds tending east-northeasterly at 10-20 km/h in the morning, south-southwesterly at 10-20 km/h in the afternoon becoming southeasterly at night.

Sunday May 2:

City:

8-23  Degrees Celsius

Mostly sunny.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.Light winds tending south-southwesterly at 15-25 km/h in the afternoon becoming southeasterly at night.

Monday May 3:

City:

11-23  Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.A slight(20%) chance of a shower or thunderstorm most liekyl from evening.Winds east-southeasterly at 15-30 km/h.

Tuesday May 4:

City:

12-22  Degrees Celsius

Showers and thunderstorms.

Chance of any rain:60%

Amount:2 to 8 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A medium(60%) chance of showers and thunderstorms.Winds northeasterly at 15-25 km/h becoming northwesterly during the day and westerly later during the day.

Wednesday May 5:

City:

13-22  Degrees Celsius

Showers.

Chance of any rain:60%

Amount:2 to 8 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A medium(60%) chance of showers.The chance of a thunderstorm.Winds west0southwesterly at 20-30 km/h.

Thursday May 6:

City:

13-21  Degrees Celsius

Shower or two.

Chance of any rain:60%

Amount:0 to 4 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A medium(60%) chance of showers.Winds west-southwesterly at 20-30 km/h.

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).