Weather forecast for Perth effective as of 12:00 AM Wednesday April 18

Weather forecast for Perth effective as of 12:00 AM Wednesday April 18:

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 07:00 UTC(3 PM local time today).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 yesterrday).Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 4:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

A cold front moves through the region early today with a cold air mass over the region thereafter.

Further cold fronts are likely to move across the region next weekend.The most likely scenario is a cold front moving across the region during the PM of Saturday then another cold front moving across the region early on Sunday.

Wednesday April 18:

City:

16-23 Degrees Celsius

Early showers and drizzle.

Chance of any rain:70%

Amount:0.4 to 2 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(90%) chance of showers and drizzle near the coast in the early hours and early morning,grading to a medium(50%) chance over inland areas.Light winds becoming southwesterly at 15-25 km/h in the morning becoming south-southwesterly at 5-15 km/h at night.

Thursday April 19:

City:

13-21 Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 0.2 mm.

Perth metropolitan area:

Partly to mostly cloudy.A slight(30%) chance of showers.Light winds tending west-southwesterly at 10-20 km/h in the afternoon and evening.

Friday April 20:

City:

12-22 Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 0.2 mm.

Perth metropolitan area:

Partly cloudy.A slight(30%) chance of showers.Light winds tending west-northwesterly at 10-20 km/h in the afternoon and evening.

Saturday April 21:

City:

12-24 Degrees Celsius

Showers.

Chance of any rain:80%

Amount:3 to 10 mm.

Perth metropolitan area:

Partly to mostly cloudy.A high(80%) chance of showers most likely from afternoon.The chance of thunderstorms.Winds northwesterly at 20-30 km/h.

Sunday April 22:

City:

16-22 Degrees Celsius

Showers.

Chance of any rain:90%

Amount:3 to 10 mm.

Perth metropolitan area:

Partly to mostly cloudy.A very high(90%) chance of showers.The chance of thunderstorms.Winds west-northwesterly at 20-30 km/h becoming west-southwesterly later.

Monday April 23:

City:

14-21 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 westerly at 10-25 km/h.

Tuesday April 24:

City:

11-23 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of a shower.Light winds.

Forecast for today produced at 12:00 AM,forecast for the rest of the days produced at 3:00 PM Tuesday April 17.Weather icons courtesy of the US National Weather Service.