Weather forecast for Perth effective as of 1:00 AM Friday March 30

Weather forecast for Perth effective as of 1:00 AM Friday March 30:

Explanatory notes:
Scroll down below this section for forecast. 

Figure 1.Surface synoptic chart at  12 UTC(8 PM local time yesterday).Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 4.Key features identified on True Colour RGB satellite image at around 07:00 UTC(3 PM local time yesterday).Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 5.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 6:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

Warmer weather occured on Thursday with a slightly warmer air mass over the region but nevertheless there was a cool sea breeze.

Warmer conditions today with a hot air mass over the region,with the west coast trough moving inland from early afternoon bringing in a cooler sea breeze.Plenty of high clouds with moist air streaming in a subtropical jet stream aloft.Also the slight chance of elevated showers and thunderstorms ahead of an upper/middle level trough/disturbance,most likely in the northeast.

Then high pressure system likely lies to the south during the weekend leading to a somewhat east-southeasterly pressure gradient.

West coast deepens near the west coast again leading to a warm air mass over the region by Monday ahead of an upper/middle level disturbance/trough.

West coast trough then moves inland with slightly cooler air mass over the region.

Friday March 30:

City:

15-33 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy,high clouds.A slight(30%) chance of showers and thunderstorms in the northeast from late afternoon,grading to a near zero chance in the southwest.Winds east-southeasterly at 10-25 km/h becoming light from around the middle of the day becoming south-southwesterly at 15-30 km/h by late afternoon.

Saturday March 31:

City:

17-28 Degrees Celsius

Mostly sunny.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.The slight chance of showers and thunderstorms in the northeast in the early hours.Winds south-southeasterly at 15-25 km/h becoming south-southwesterly at 20-30 km/h from afternoon becoming southeasterly at 15-25 km/h at night.

Sunday April 1:

City:

15-28 Degrees Celsius

High clouds(mostly sunny).

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

High clouds(mostly sunny).Winds east-southeasterly at 15-25 km/h tending 10-20 km/h in the afternoon and evening.

Monday April 2:

City:

17-32 Degrees Celsius

Mostly sunny.

Chance of any rain:10%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.A slight(20%) chance of a shower or thunderstorm over the north and east.Winds east-southeasterly at 20-30 km/h becoming easterly at 15-25 km/h from afternoon.

Tuesday April 3:

City:

20-31 Degrees Celsius

Mostly sunny.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny.Winds northeasterly at 10-20 km/h becoming northwesterly from morning becoming southwesterly at 15-25 km/h from afternoon becoming south-southwesterly at 10-20 km/h at night.

Wednesday April 4:

City:

18-27 Degrees Celsius

AM clouds.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy becoming sunny by afternoon.Winds southeasterly at 10-20 km/h tending southwesterly at 20-30 km/h in the afternoon and evening.

Thursday April 5:

City:

16-29 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds east-southeasterly at 10-20 km/h tending southwesterly at 10-25 km/h in the afternoon and evening.

Forecast for today produced at 1:00 AM,forecast for the rest of the days produced at 5:30 PM Thursday March 29.Weather icons courtesy of the US National Weather Service.