Weather forecast for Perth effective as of 12:00 AM Tuesday April 17

Weather forecast for Perth effective as of 12:00 AM Tuesday April 17:

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).

It was a hot day on Monday with a maximum temperature of 33.1 Degrees Celsius at the Perth Metro station due to warm air advection with a west coast trough offshore.There were some middle and high level clouds as well ahead of an upper/middle level trough/disturbance.

With excellent radiational cooling temperatures dropped considerably at night.Temperatures likely rise back in the next few hours with an increase in dew points,cloud cover and wind.

A cold front moves through the region late on Tuesday night/early on Wednesday with a cold air mass over the region thereafter.

Further cold fronts are likely to move across the region next weekend.

Tuesday April 17:

City:

17-24 Degrees Celsius

Possible late night shower.

Chance of any rain:30%

Amount:0 to 0.4 mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of a shower then a medium(60%) chance of showers in the southwest at night,a slight(30%) elsewhere late at night.Light winds tending west-southwesterly at 15-25 km/h in the afternoon and evening.

Wednesday April 18:

City:

15-23 Degrees Celsius

Possible shower or two.

Chance of any rain:40%

Amount:0 to 1 mm.

Perth metropolitan area:

Partly cloudy.A medium(60%) chance of showers near the coast,a medium(40%) chance elsewhere.Winds south-southwesterly at 15-25 km/h.

Thursday April 19:

City:

11-21 Degrees Celsius

Partly to mostly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly to mostly cloudy.A slight(20%) chance of a shower.Light winds tending south-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 0.4 mm.

Perth metropolitan area:

Partly cloudy.A slight(30%) chance of showers.Light winds.

Saturday April 21:

City:

13-23 Degrees Celsius

Showers.

Chance of any rain:90%

Amount:4 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 25-40 km/h.

Sunday April 22:

City:

15-21 Degrees Celsius

Showers.

Chance of any rain:80%

Amount:1 to 6 mm.

Perth metropolitan area:

Partly to mostly cloudy.A high(80%) chance of showers.The chance of thunderstorms.Winds west-northwesterly at 20-30 km/h becoming west-southwesterly later.

Monday April 23:

City:

14-22 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 westerly at 10-25 km/h.

Forecast for today produced at 12:00 AM,forecast for the rest of the days produced at 5:00 PM Monday April 16.Weather icons courtesy of the US National Weather Service.