Explanatory notes:
Possible showers and thunderstorms associated with the west coast trough ahead of an upper/middle level trough/disturbance today and tomorrow.
With 500 hPa temps down to -18 Degrees Celsius,relatively high instability,possible hail with thunderstorms.
The rest of Tuesday October 9:
Max:30 Degrees Celsius
Possible showers and thunderstorms.
Chance of any rain:50%
Perth metropolitan area:
Partly cloudy.A medium(50%) chance of showers and thunderstorms.Possible hail with thunderstorms.Areas of smoke.Winds east-northeasterly at 10-20 km/h becoming easterly at 15-25 km/h at night.
Wednesday October 10:
15-27 Degrees Celsius
Possible AM showers and thunderstorms.
Chance of any rain:50%
Amount:0 to 3 mm.
Perth metropolitan area:
Partly cloudy.A medium(50%) chance of showers and thunderstorms in the early hours and morning clearing to a slight(20%) chance of a shower thereafter.Winds easterly at 15-25 km/h becoming light from afternoon.
Thursday October 11:
13-23 Degrees Celsius
Partly cloudy.
Chance of any rain:20%
Amount:0 mm.
Perth metropolitan area:
Partly cloudy.A slight(30%) chance of a shower over the hills,a slight(20%) chance elsewhere.Light winds tending west-southwesterly at 10-20 km/h from afternoon.
Friday October 12:
14-21 Degrees Celsius
Possible shower or two.
Chance of any rain:40%
Amount:0 to 2 mm.
Perth metropolitan area:
Partly to mostly cloudy.A medium(40%) chance of showers.Winds west-southwesterly at 10-20 km/h becoming light at night.
Saturday October 13:
12-20 Degrees Celsius
Showers.Possible thunderstorm.
Chance of any rain:95%
Amount:5 to 15 mm.
Perth metropolitan area:
Partly to mostly cloudy.A very high(95%) chance of showers.The chance of a thunderstorm.Light winds becoming southwesterly at 15-25 km/h from afternoon.
Sunday October 14:
12-21 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 tending west-southwesterly at 10-20 km/h during the day.
Monday October 15:
10-24 Degrees Celsius
Mostly sunny.
Chance of any rain:5%
Amount:0 mm.
Perth metropolitan area:
Mostly sunny.Light winds.
Charts:
Figure 3.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).
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.
