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).
A strong cold front moved across the region earlier today with a deep cold and unstable air mass over the region from afternoon with the possibility of thunderstorms and/or hail.
The Australian Bureau of Meteorology(BOM) has cancelled the severe weather warning for the Perth Metropolitan Area with the severe weather warning in effect south of Mandurah.
Cold mornings from Friday with radiational cooling of already cold air.Showers clear during the early hours on Friday with the onset of more southerly flow.
Thursday August 9:
City:
12-16 Degrees Celsius
Windy with showers.Possible PM thunderstorms.
Chance of any rain:100%
Amount:15 to 30 mm.
Perth metropolitan area:
Partly to mostly cloudy.A very high(100%) chance of rain becoming showers in the morning.The chance of thunderstorms and/or hail from afternoon.Winds southwesterly at 35-50 km/h easing to 20-35 km/h at night.Gusty winds,wind gusts in excess of 80 km/h possible.
Friday August 10:
City:
5-15 Degrees Celsius
Early showers.
Chance of any rain:70%
Amount:0.2 to 2 mm.
Perth metropolitan area:
Partly to mostly cloudy.A high(70%) chance of showers in the early hours.The chance of a thunderstorm and/or small hail in the early hours.Winds south-southwesterly at 10-20 km/h.
Saturday August 11:
City:
3-18 Degrees Celsius
Afternoon clouds.
Chance of any rain:0%
Amount:0 mm.
Perth metropolitan area:
Partly cloudy afternoon.Areas of early frost possible over the hills and in hollow areas.Light winds.
Sunday August 12:
City:
5-20 Degrees Celsius
Sunny.
Chance of any rain:0%
Amount:0 mm.
Perth metropolitan area:
Sunny.Winds northeasterly at 15-25 km/h becoming northerly in the morning.
Monday August 13:
City:
7-21 Degrees Celsius
PM showers.
Chance of any rain:60%
Amount:0 to 3 mm.
Perth metropolitan area:
Sunny morning.A medium(60%) chance of showers from afternoon.Winds north-northeasterly at 10-20 km/h becoming north-northwesterly at 20-35 km/h from around the middle of the day.
Tuesday August 14:
City:
10-18 Degrees Celsius
Showers.
Chance of any rain:70%
Amount:0.4 to 3 mm.
Perth metropolitan area:
Partly to mostly cloudy.A high(70%) chance of showers.Winds west-southwesterly at 15-25 km/h.
Wednesday August 15:
City:
8-17 Degrees Celsius
Shower or two.
Chance of any rain:50%
Amount:0 to 2 mm.
Perth metropolitan area:
Partly cloudy.A medium(50%) chance of showers.Light winds tending southwesterly at 10-20 km/h during the day.
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.
