Weather forecast for Perth effective as of 12:00 AM Saturday May 12

Weather forecast for Perth effective as of 12:00 AM Saturday May 12
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 2.Key features identified on True Colour RGB satellite image at around 06:00 UTC(2 PM local time yesterday).Satellite image courtesy of the Japanese Meteorological Agency(JMA).

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).

Unusually warm weather persists throughout the forecast period with a blocking subtropical high pressure ridge to the south throughout the forecast period.

Today will be particularly warm and we could possibly have the latest 30 Degrees Celsius day in autumn on record.

With west coast trough onshore slightly cooler weather from Sunday but with strengthening high pressure to the south daytime temperatures increasing slightly again.

Saturday May 12:

City:

15-31 Degrees Celsius

High clouds(mostly sunny).

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

High clouds(mostly sunny).Winds northeasterly at 10-20 km/h shifting west-northwesterly from around the middle of the day then becoming light.

Sunday May 13:

City:

14-25 Degrees Celsius

Partly cloudy.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Light winds tending south-southwesterly at 10-20 km/h in the afternoon and evening becoming southeasterly at night.

Monday May 14:

City:

12-26 Degrees Celsius

Becoming sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Mostly sunny becoming sunny by afternoon.Winds east-southeasterly at 15-25 km/h.

Tuesday May 15:

City:

13-27 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds east-northeasterly at 20-30 km/h becoming light from afternoon.

Wednesday May 16:

City:

12-26 Degrees Celsius

High clouds(mostly sunny).

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

High clouds(mostly sunny).Winds east to northeasterly at 10-20 km/h becoming light from afternoon.

Thursday May 17:

City:

11-24 Degrees Celsius

High clouds(mostly sunny).

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

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

Friday May 18:

City:

11-24 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds east-northeasterly at 10-20 km/h tending light in the afternoon and evening.

Forecast for today produced at 11:45 PM Monday May 7,forecast for the rest of the days produced at 5:00 PM Monday May 7.Weather icons courtesy of the US National Weather Service.