Weather forecast for Perth effective as of 12:00 AM Wednesday June 27

Weather forecast for Perth effective as of 12:00 AM Wednesday June 27
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).

A cold front moves across the region today.Some showers before the cold frontal passage with a rain band accompanying the cold frontal passage.Can't rule out thunderstorms with some instability.Cold air mass lies over the region thereafter.Depending on the strength of winds overnight,frost is possible early on Saturday over the hills.

Another cold front likely moves across the region next Monday.

Wednesday June 27:

City:

12-18 Degrees Celsius

Rain,showers,easing later.Possible AM thunderstorm.

Chance of any rain:100%

Amount:15 to 30 mm.

Perth metropolitan area:

Cloudy becoming partly from afternoon.A very high(100%) chance of rain and showers easing to a slight(30%) chance from afternoon.The chance of thunderstorms in the early hours and morning.Heavy falls possible.Winds northerly at 10-20 km/h becoming south-southwesterly from around the middle of the day becoming light at night.

Thursday June 28:

City:

7-17 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds south-southeasterly at 5-15 km/h.

Friday June 29:

City:

5-17 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds easterly at 10-20 km/h becoming light from afternoon.

Saturday June 30:

City:

3-18 Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds northeasterly at 10-20 km/h.

Sunday July 1:

City:

6-20 Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds north-northwesterly at 20-30 km/h.

Monday July 2:

City:

13-20 Degrees Celsius

Showers.Possible thunderstorm.

Chance of any rain:80%

Amount:2 to 8 mm.

Perth metropolitan area:

Partly to mostly cloudy.A high(80%) chance of showers.The chance of a thunderstorm.Winds northwesterly at 25-40 km/h.Gusty winds likely.

Tuesday July 3:

City:

11-18 Degrees Celsius

Showers.Possible thunderstorm.

Chance of any rain:90%

Amount:5 to 15 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(90%) chance of showers.The chance of a thunderstorm.Winds west-northwesterly at 25-40 km/h.Gusty winds possible.

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.