Explanatory notes:
Scroll down below this section for forecast.
Figure 3.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image at 00 UTC(8 AM local time today).Image courtesy of the Australian Bureau of Meteorology(BOM).
Forecast updated based on latest temperatures.Hotter then expected conditions due to plenty of sunshine.
Some middle level clouds from until the early hours of Thursday with moist air aloft.Virga will likely occur at times from Tuesday with the slight chance of reaching the ground on Wednesday.Some high clouds also streaming in a subtropical jet stream.
A west coast trough lies near the west coast leading with a hot air mass over the region until Wednesday.
The west coast trough then moves inland on Wednesday afternoon with cooler air mass over the region thereafter.
A cold front likely moves over the region on Saturday bringing showers and possibly the coldest air mass over the region since spring last year.Then high pressure ridge rapidly builds to the south leading to clearing conditions.
Some middle level clouds from until the early hours of Thursday with moist air aloft.Virga will likely occur at times from Tuesday with the slight chance of reaching the ground on Wednesday.Some high clouds also streaming in a subtropical jet stream.
A west coast trough lies near the west coast leading with a hot air mass over the region until Wednesday.
The west coast trough then moves inland on Wednesday afternoon with cooler air mass over the region thereafter.
A cold front likely moves over the region on Saturday bringing showers and possibly the coldest air mass over the region since spring last year.Then high pressure ridge rapidly builds to the south leading to clearing conditions.
The rest of Tuesday March 13:
Perth metropolitan area:
City:
Maximum:39 Degrees Celsius
Partly cloudy.Very hot.
Chance of any rain:0%
Perth metropolitan area:
Partly cloudy,some high clouds.Very hot.Light winds becoming easterly at 15-25 km/h by late at night.
Wednesday March 14:
25-34 Degrees Celsius
Perth metropolitan area:
Wednesday March 14:
City:
Partly cloudy.
Chance of any rain:20%
Amount:0 mm.
Perth metropolitan area:
Partly cloudy,some high clouds.A slight(20%) chance of a shower most likely in the southwest.Winds northeasterly at 5-15 km/h becoming westerly at 20-30 km/h from around the middle of the day becoming southwesterly at 10-20 km/h from afternoon becoming south-southwesterly at night.
Thursday March 15:
Perth metropolitan area:
Thursday March 15:
City:
20-26 Degrees Celsius
Partly cloudy.
Chance of any rain:20%
Amount:0 mm.
Perth metropolitan area:
Partly cloudy,some high clouds.A slight(20%) chance of showers.Winds southwesterly at 15-25 km/h increasing to 20-30 km/h during the day becoming south-southwesterly at 10-20 km/h at night.
Friday March 16:
Perth metropolitan area:
Friday March 16:
City:
16-25 Degrees Celsius
Partly cloudy.
Chance of any rain:10%
Amount:0 mm.
Perth metropolitan area:
Partly cloudy,some high clouds.A slight(30%) chance of showers.Winds south-southeasterly at 10-20 km/h becoming southwesterly at 20-30 km/h in the afternoon becoming south-southwesterly at 15-25 km/h at night.
Saturday March 17:
Perth metropolitan area:
Saturday March 17:
City:
15-22 Degrees Celsius
Showers.
Chance of any rain:50%
Amount:0 to 1 mm.
Perth metropolitan area:
Partly cloudy.A medium(50%) chance of showers.Winds south-southwesterly at 30-40 km/h becoming southerly at 20-30 km/h at night.
Sunday March 18:
Perth metropolitan area:
Sunday March 18:
City:
10-25 Degrees Celsius
Sunny.
Chance of any rain:0%
Amount:0 mm.
Perth metropolitan area:
Sunny.Winds south-southeasterly at 15-25 km/h.
Monday March 19:
Perth metropolitan area:
Monday March 19:
City:
13-29 Degrees Celsius
Sunny.
Chance of any rain:0%
Amount:0 mm.
Perth metropolitan area:
Sunny.Winds east-southeasterly at 20-30 km/h easing to 15-25 km/h from afternoon.
Forecast produced at 4:00 PM Monday March 12.Weather icons courtesy of the US National Weather Service.
