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 today).Image courtesy of the Australian Bureau of Meteorology(BOM).
Easterly pressure gradient has rapidly reestablished over the region with a strong subtropical high pressure ridge lying south of the region.
A west coast trough deepened near the west coast today with some warm air advection.
The west coast trough continues to deepen tomorrow,remaining offshore suppressing sea breezes with further warm air advection.
Especially hot conditions with very hot conditions over inland coastal plain areas on Tuesday before the west coast trough moves inland.
The marine layer advects onshore from Tuesday afternoon as the west coast trough moves inland.
A strong somewhat easterly pressure gradient probably reestablishes over the region again from next weekend.
We had the first summer without a 40+ Degree day at the Perth metro station since the summer of 2001-2002.
The rest of Sunday March 4:
Clear.Winds east-southeasterly at 15-25 km/h.
Monday March 5:
Monday March 5:
Mostly sunny.Winds east-northeasterly at 20-30 km/h easing to 15-25 km/h from afternoon.
Tuesday March 6:
Tuesday March 6:
Hot and mostly sunny.Winds northeasterly at 20-30 km/h becoming light from around the middle of the day becoming west-southwesterly at 10-20 km/h from late afternoon becoming southwesterly and light at night.
Wednesday March 7:
Wednesday March 7:
Mostly sunny.Light winds becoming southwesterly at 15-25 km/h from afternoon becoming south-southwesterly at 10-20 km/h at night.
Thursday March 8:
Thursday March 8:
Mostly sunny.Light winds becoming southwesterly at 15-25 km/h from afternoon becoming light at night.
Friday March 9:
Friday March 9:
Sunny.Light winds becoming south-southwesterly at 20-35 km/h from afternoon becoming south-southeasterly at 20-30 km/h at night.
Saturday March 10:
Saturday March 10:
Forecast produced at 8:00 PM Sunday March 4.Weather icons courtesy of the US National Weather Service.



