Weather forecast for Perth effective as of 5:30 PM Saturday May 26

Weather forecast for Perth effective as of 5:30 PM Saturday May 26
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 3.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 4.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 5:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

On Sunday another,but much weaker cold front brushes the region bringing showers again.But the slight chance of thunderstorms with some instability with moist low level air.

Improving conditions from Monday with a high pressure system strengthening to the southeast.

Another cold front likely moves over the region on Thursday.

The rest of Saturday May 26:

City:

Shower or two.

Chance of any rain:50%

Perth metropolitan area:

Partly to mostly cloudy.A medium(50%) chance of showers.Winds west-southwesterly at 20-35 km/h easing to 10-20 km/h at night.

Sunday May 27:

City:

12-22 Degrees Celsius

Showers especially afternoon.

Chance of any rain:95%

Amount:2 to 6 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(95%) chance of showers.Winds westerly at 15-25 km/h increasing to 25-40 km/h in the late morning shifting southwesterly in the afternoon.

Monday May 28:

City:

10-19 Degrees Celsius

Possible shower.

Chance of any rain:40%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Partly cloudy.A medium(40%) chance of showers.Light winds.

Tuesday May 29:

City:

6-21 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Light winds.

Wednesday May 30:

City:

6-23 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds northeasterly at 15-25 km/h becoming light from afternoon.

Thursday May 31:

City:

10-21 Degrees Celsius

Showers.Possible thunderstorm.

Chance of any rain:90%

Amount:2 to 7 mm.

Perth metropolitan area:

Partly cloudy.A very high(90%) chance of showers.The chance of thunderstorms.Winds north-northeasterly at 10-20 km/h becoming westerly at 15-25 km/h becoming light.

Friday June 1:

City:

9-19 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of a shower.Light winds.

Saturday June 2:

City:

7-21 Degrees Celsius

Sunny.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Sunny.Light winds.

Forecast for today produced at 11:45 PM Monday May 7,forecast for the rest of the days produced at 5:00 PM Monday May 7.Weather icons courtesy of the US National Weather Service.