Explanatory notes:
Scroll down below this section for forecast.
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).
Cold front moves across the region late tonight/early on Friday bringing plenty of showers.
Still possible showers on Friday in a southwesterly air stream.
Another cold frontal passage on Saturday PM bringing showers and also possible thunderstorms with instability.
Plenty of showers on Sunday and Monday with a cold and unstable southwesterly air stream.
The rest of Thursday July 12:
City:
Late showers.
Chance of any rain:70%
Perth metropolitan area:
Partly to mostly cloudy.A very high(90%) chance of showers over far southwestern areas at night,a high(70%) chance elsewhere from late at night.Winds northwesterly at 20-30 km/h.
Friday July 13:
City:
12-19 Degrees Celsius
Showers easing.
Chance of any rain:90%
Amount:1 to 4 mm.
Perth metropolitan area:
Partly to mostly cloudy.A very high(90%) chance of showers easing to a medium(60%) before dawn.Winds southwesterly at 15-25 km/h becoming light at night.
Saturday July 14:
City:
9-18 Degrees Celsius
Showers.Possible thunderstorm.
Chance of any rain:100%
Amount:5 to 12 mm.
Perth metropolitan area:
Partly to mostly cloudy.A very high(100%) chance of showers.The chance of a thunderstorm in the PM.Winds westerly at 25-40 km/h becoming southwesterly at night.Gusty winds possible.
Sunday July 15:
City:
8-18 Degrees Celsius
Showers.
Chance of any rain:80%
Amount:0.4 to 2 mm.
Perth metropolitan area:
Partly to mostly cloudy.A high(80%) chance of showers.Winds west-southwesterly at 20-30 km/h.
Monday July 16:
City:
11-19 Degrees Celsius
Showers.
Chance of any rain:90%
Amount:1to 3 mm.
Perth metropolitan area:
Partly to mostly cloudy.A very high(90%) chance of showers.Winds west-southwesterly at 20-30 km/h.
Tuesday July 17:
City:
8-19 Degrees Celsius
Possible shower.
Chance of any rain:40%
Amount:0 to 1 mm.
Perth metropolitan area:
Partly cloudy.A medium(40%) chance of showers.Light winds.
Wednesday July 18:
City:
9-19 Degrees Celsius
Possible shower.
Chance of any rain:30%
Amount:0 to 1 mm.
Perth metropolitan area:
Partly cloudy.A slight(30%) chance of showers.Light winds.
Thursday July 19:
City:
7-20 Degrees Celsius
Possible shower.
Chance of any rain:30%
Amount:0 to 1 mm.
Perth metropolitan area:
Partly cloudy.A slight(30%) chance of showers.Winds northwesterly at 10-20 km/h.
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.
