Explanatory notes:
Scroll down below this section for forecast.
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).
Tuesday was the hottest day of the year so far and the hottest day in more than a year with a maximum temperature of 38.5 Degrees Celsius recorded at the Perth metro station,the highest since February 25 2017!
The unusual situation was that the hottest day of the year was recorded outside of meteorological summer which has not happened since 2007.
Some middle level clouds were also present with some virga in the morning with moist air aloft.
Some middle level clouds from until the early hours of Thursday with moist air aloft.
The chance of the precipitation reaching the ground on Wednesday ahead of an upper/middle level trough.Some high clouds also streaming in a subtropical jet stream.
The west coast trough moves inland early.Cloud cover likely limits high temperatures.
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 unusual situation was that the hottest day of the year was recorded outside of meteorological summer which has not happened since 2007.
Some middle level clouds were also present with some virga in the morning with moist air aloft.
Some middle level clouds from until the early hours of Thursday with moist air aloft.
The chance of the precipitation reaching the ground on Wednesday ahead of an upper/middle level trough.Some high clouds also streaming in a subtropical jet stream.
The west coast trough moves inland early.Cloud cover likely limits high temperatures.
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.
Wednesday March 14:
City:
Possible shower.
Chance of any rain:30%
Amount:0 to 0.8 mm.
Perth metropolitan area:
Partly to mostly cloudy,some high clouds.A medium(50%) chance of rain and showers in the southwest,a slight(30%) chance elsewhere.Light winds becoming southerly at 10-25 km/h before dawn becoming south-southwesterly from afternoon.
Thursday March 15:
Perth metropolitan area:
Thursday March 15:
City:
20-26 Degrees Celsius
Possible shower.
Chance of any rain:30%
Amount:0 to 0.8 mm.
Perth metropolitan area:
Partly cloudy,some high clouds early.A slight(30%) chance of showers.Winds southwesterly at 15-25 km/h increasing to 20-30 km/h during the day easing to south-southwesterly and light at night.
Friday March 16:
Perth metropolitan area:
Friday March 16:
City:
16-26 Degrees Celsius
Partly cloudy.
Chance of any rain:5%
Amount:0 mm.
Perth metropolitan area:
Partly cloudy,some high clouds.A slight(30%) chance of showers.Winds southeasterly at 5-15 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
Possible showers.
Chance of any rain:40%
Amount:0 to 1 mm.
Perth metropolitan area:
Partly cloudy.A medium(40%) chance of showers.Winds southwesterly at 10-20 km/h becoming south-southwesterly at 30-40 km/h during the day becoming southerly at 15-25 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 southeasterly at 5-15 km/h becoming south-southwesterly at 20-30 km/h in the afternoon becoming south-southeasterly at 10-25 km/h at night.
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 tending southeasterly at 10-20 km/h in the afternoon and evening.
Tuesday March 20:
Perth metropolitan area:
Tuesday March 20:
City:
17-31 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 during the day.
Forecast produced at 4:00 PM Monday March 12.Weather icons courtesy of the US National Weather Service.
