Current(Perth Metro)



Radar



Sunday, 2 September 2018

Weather forecast for Perth effective as of 12:00 AM Monday September 3

Weather forecast for Perth effective as of 12:00 AM Monday September 3
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 3.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 4.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).










Perth experienced the wettest August in 50 years with 186.0 mm of rain so far!It was also the wettest winter month since June 2005 and the wettest winter in 15 years!

Subtropical high pressure ridge lies to the north throughout the forecast period,hence there is a chance of showers everyday of the next 7 days!

Today,possible showers from morning in the far southwest,elsewhere from afternoon as a westerly air stream establishes over the region.Can't rule out patches of fog in the early hours with excellent radiational cooling overnight.

The next cold front moves across the region on Tuesday,with a cold air mass over the region thereafter.











Monday September 3:
City:
4-20 Degrees Celsius
Possible PM shower or two.
Chance of any rain:40%
Amount:0 to 0.4 mm.



Perth metropolitan area:
Mostly sunny morning,partly to mostly cloudy afternoon.Patches of fog possible early.A medium(40%) chance of a shower in the far southwest from morning,extending throughout by afternoon.Light winds becoming westerly at 10-25 km/h from late morning,becoming light at night.
Tuesday September 4:
City:
10-18 Degrees Celsius
Showers.
Chance of any rain:95%
Amount:4 to 8 mm.



Perth metropolitan area:
Partly to mostly cloudy.A very high(95%) chance of showers mainly in the morning and at night.Light winds becoming westerly at 10-20 km/h in the morning becoming 20-35 km/h from afternoon.
Wednesday September 5:
City:
9-16 Degrees Celsius
Showers easing.
Chance of any rain:90%
Amount:0.4 to 2 mm.



Perth metropolitan area:
Mostly cloudy.A very high(90%) chance of showers in the early hours,easing to a high(70%) chance from morning.Winds southwesterly at 20-35 km/h becoming light at night.
Thursday September 6:
City:
7-17 Degrees Celsius
Possible shower or two.
Chance of any rain:40%
Amount:0 to 1 mm.



Perth metropolitan area:
Mostly cloudy.A medium(40%) chance of showers.Light winds tending westerly at 10-20 km/h during the day.
Friday September 7:
City:
8-19 Degrees Celsius
Showers.
Chance of any rain:60%
Amount:0 to 2 mm.



Perth metropolitan area:
Partly to mostly cloudy.A medium(60%) chance of showers.Winds west-northwesterly at 15-25 km/h.
Saturday September 8:
City:
11-20 Degrees Celsius
Shower or two.
Chance of any rain:50%
Amount:0 to 1 mm.



Perth metropolitan area:
Partly to mostly cloudy.A medium(50%) chance of showers.Winds westerly at 15-30 km/h.































Sunday September 9:































City:

10-21 Degrees Celsius
Possible shower.
Chance of any rain:30%
Amount:0 to 0.4 mm.



Perth metropolitan area:
Partly to mostly cloudy.A slight(30%) chance of showers.Winds west-northwesterly at 10-25 km/h.



Forecast for today produced at 12:00 AM,forecast for the rest of the days produced at 4:20 PM Wednesday July 11.Weather icons courtesy of the US National Weather Service.
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