Weather forecast for Perth effective as of 5:00 PM Monday July 30

Weather forecast for Perth effective as of 5:00 PM Monday July 30
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 4:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

A strong cold front moves across the region early on Wednesday with a deep cold air mass over the region thereafter with 500 hpa temperatures down to -29 Degrees Celsius,thunderstorms and possible hail.

Another cold front likely moves across the region late on Friday.

The rest of Monday July 30:

City:

12-18 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Light winds.

Tuesday July 31:

City:

6-19 Degrees Celsius

Possible night shower

Chance of any rain:30%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Partly cloudy day.A slight(30%) chance of showers from evening.Light winds becoming northwesterly at 15-25 km/h from around the middle of the day.

Wednesday August 1:

City:

11-16 Degrees Celsius

Windy with showers and thunderstorms.

Chance of any rain:100%

Amount:15 to 30 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(100%) chance of showers and thunderstorms.Possible hail.Winds northwesterly at 20-35 km/h becoming westerly at 30-45 km/h from morning becoming southwesterly from afternoon.Gusty winds likely.

Thursday August 2:

City:

7-17 Degrees Celsius

Showers.

Chance of any rain:90%

Amount:2 to 8 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(90%) chance of showers.The chance of thunderstorms and/or small hail in the early hours.Winds southwesterly at 25-40 km/h.

Friday August 3:

City:

11-18 Degrees Celsius

Showers.

Chance of any rain:95%

Amount:4 to 12 mm.

Perth metropolitan area:

Mostly cloudy.A very high(95%) chance of showers.Winds west-southwesterly at 30-45 km/h.

Saturday August 4:

City:

9-16 Degrees Celsius

Showers.

Chance of any rain:70%

Amount:1 to 4 mm.

Perth metropolitan area:

Partly to mostly cloudy.A high(70%) chance of showers.Winds south-southwesterly at 30-45 km/h.

Sunday August 5:

City:

6-16 Degrees Celsius

Partly to mostly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly to mostly cloudy.A slight(20%) chance of a shower.Winds southerly at 10-20 km/h.

Monday August 6:

City:

6-17 Degrees Celsius

Partly to mostly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

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

Forecast for today produced at 12:00 AM,forecast for the rest of the days produced at 4:20 PM Wednesday July 11.Weather icons courtesy of the US National Weather Service.