Weather forecast for Perth effective as of 6:00 PM Thursday June 14

Weather forecast for Perth effective as of 6:00 PM Thursday June 14
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).

High pressure system to the east results in dry conditions until late on Sunday with showers possible ahead of a cold front.Some warm air advection results in increasing maximum temperatures.

The chance of fog from tonight and into early tomorrow with radiational cooling of moist low level air.

High pressure system moves into southern areas of the country/the Great Australian bight leading to dry conditions on Friday and Saturday.

Another cold front likely moves across the region late on Sunday/on Monday with cold air mass over the region thereafter.

The rest of Thursday June 14:

City:

Clear.

Chance of any rain:0%

Perth metropolitan area:

Clear.Patches of fog possible.Light winds.

Friday June 15:

City:

7-20 Degrees Celsius

Possible early fog.Partly cloudy day.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Areas of fog possible in the early hours and morning clearing by 9 AM to become sunny,becoming partly cloudy in the afternoon.Light winds.

Saturday June 16:

City:

7-21 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

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

Sunday June 17:

City:

9-23 Degrees Celsius

Late night shower or two.

Chance of any rain:50%

Amount:0 to 4 mm.

Perth metropolitan area:

Sunny morning and afternoon.A medium(50%) chance of showers late at night near midnight.Winds north-northeasterly at 20-30 km/h becoming northerly from afternoon becoming north-northwesterly at night.

Monday June 18:

City:

10-17 Degrees Celsius

Early rain easing to showers.

Chance of any rain:100%

Amount:15 to 30 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(100%) chance of rain easing to showers in the morning.The chance of a thunderstorm.Winds northwesterly at 20-30 km/h becoming west-southwesterly at 20-35 km/h before dawn.

Tuesday June 19:

City:

9-18 Degrees Celsius

Showers.

Chance of any rain:90%

Amount:3 to 10 mm.

Perth metropolitan area:

Partly cloudy.A very high(90%) chance of showers.Winds west-southwesterly at 15-25 km/h becoming light at night.

Wednesday June 20:

City:

9-19 Degrees Celsius

Shower or two.

Chance of any rain:50%

Amount:0 to 5 mm.

Perth metropolitan area:

Partly cloudy.A medium(50%) chance of showers.Winds west-southwesterly at 15-25 km/h.

Thursday June 21:

City:

10-19 Degrees Celsius

Showers.

Chance of any rain:70%

Amount:0.4 to 5 mm.

Perth metropolitan area:

Partly cloudy.A high(70%) chance of showers.Winds west-southwesterly at 15-25 km/h.

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.