Current(Perth Metro)



Radar



Wednesday, 3 October 2018

7 day weather forecast

Effective as of 7:00 AM Wednesday October 3

Explanatory notes:



Another west coast trough deepens near the west coast today with another upper/middle level trough/disturbance arriving likely bringing showers from afternoon.

 With an unstable atmosphere,thunderstorms likely develop over land tomorrow afternoon,thunderstorms will be steered to the southeast,hence highest chance of precipitation will be over the hills.Can't rule out hail with relatively cold air aloft,500 hPa temps of -17 Degrees Celsius.





Wednesday October 3:
Max:23 Degrees Celsius
PM showers.
Chance of any rain:80%
Amount:1 to 3 mm.



Perth metropolitan area:
Mostly sunny morning.A high(80%) chance of showers from afternoon.The chance of a thunderstorm from afternoon.Winds easterly at 25-40 km/h easing to 20-30 km/h in the afternoon.Wind gusts in excess of 75 km/h possible in the early hours and morning over the hills and foothills.
Thursday October 4:
14-24 Degrees Celsius
Showers and thunderstorms developing
Chance of any rain:70%
Amount:1 to 5 mm.



Perth metropolitan area:
Mostly sunny morning.A slight(30%) chance of showers in the early hours.A very high(95%) chance of showers and thunderstorms over the hills in the afternoon,grading to a medium(50%) chance over coastal suburbs. Winds east-northeasterly at 20-30 km/h becoming northerly from late morning becoming northwesterly in the afternoon.Stronger winds and hail possible with thunderstorms.
Friday October 5:
13-21 Degrees Celsius
Showers.
Chance of any rain:80%
Amount:1 to 4 mm.



Perth metropolitan area:
Partly to mostly cloudy.A high(80%) chance of showers.The chance of a thunderstorm.Winds northwesterly at 10-20 km/h becoming light at night.
Saturday October 6:
12-22 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 showers.Light winds tending south-southwesterly at 10-25 km/h during the afternoon.
Sunday October 7:
11-24 Degrees Celsius
Partly cloudy.
Chance of any rain:20%
Amount:0 mm.



Perth metropolitan area:
Partly cloudy.A slight(20%) chance of a shower from afternoon.Winds easterly at 15-30 km/h tending south-southwesterly at 10-20 km/h during the afternoon.





Monday October 8:
12-23 Degrees Celsius
Partly cloudy.
Chance of any rain:20%
Amount:0 mm.



Perth metropolitan area:
Partly cloudy.A slight(20%) chance of a shower.Winds south-southeasterly at 10-20 km/h.
Tuesday October 9:

12-23 Degrees Celsius
Partly cloudy.
Chance of any rain:20%
Amount:0 mm.



Perth metropolitan area:
Partly cloudy.A slight(20%) chance of a shower or thunderstorm.Winds easterly at 10-25 km/h tending southerly during the afternoon.


Charts:


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 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).





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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