Effective as of 4:00 AM Sunday November 8 2020
Explanatory notes:Marine layer clouds developing over the region from early hours. A weak trough brings the slight chance of light showers in the late morning/early afternoon.
From Monday, a more September or even winter like pattern compared to November.
A significant cold front brings rain,showers and possible thunderstorms on Monday with showers, possible thunderstorms and/or small hail in the deep cold air mass behind the cold front, easing early on Tuesday with the depth of the cold air mass decreasing.
Partly to mostly cloudy conditions on Wednesday, Thursday with a ridge of high pressure to the northwest, over the region.
Another cold front likely moves over the region on Friday bringing showers, it likely remains showery during the weekend with westerly flow, embedded cold fronts and troughs possible.
Sunday November 8:
City:
15-25 Degrees Celsius
Partly cloudy.
Chance of any rain:20%
Amount:Nil
Perth Metropolitan Area:
Partly cloudy.A slight(30%) chance of a shower most likey in the late morning and early afternoon.Light winds becoming west-southwesterly at 15-25 km/h from late morning becoming light at night.
Monday November 9:
City:
15-21 Degrees Celsius
Showers.Possible thunderstorm.
Chance of any rain:100%
Amount:10 to 25 mm
Perth Metropolitan Area:
Partly to mostly cloudy.A very high(100%) chance of showers. The chance of a thunderstorm. Possible small hail from evening. Winds northwesterly at 20-30 km/h shifting west-southwesterly at 30-45 km/h around tge middle of the day becoming southwesterly at 20-30 km/h from evening.
Tuesday November 10:
City:
10-19 Degrees Celsius
Showers easing.
Chance of any rain:80%
Amount:2 to 6 mm
Perth Metropolitan Area:
Partly to mostly cloudy.A high(80%) chance of showers easing to a slight(30%) chance by afternoon. The chance of a thunderstorm and/or small hail in the early hours. Winds southwesterly at 20-30 km/h.
Wednesday November 11:
City:
9-20 Degrees Celsius
Partly to mostly cloudy.
Chance of any rain:10%
Amount:Nil
Perth Metropolitan Area:
Partly to mostly cloudy..Light winds tending southwesterly at 10-20 km/h in the afternoon.
Thursday November 12:
City:
10-21 Degrees Celsius
Partly cloudy.
Chance of any rain:10%
Amount:Nil
Perth Metropolitan Area:
Partly cloudy.Light winds becoming northwesterly at 15-25 km/h during the day.
Friday November 13:
City:
15-22 Degrees Celsius
Showers.
Chance of any rain:80%
Amount:Nil
Perth Metropolitan Area:
Partly to mostly cloudy.A high(80%) chance of showers.Winds northwesterly at 20-30 km/h shifting west-southwesterly at 15-25 km/h by morning.
Saturday November 14:
City:
14-23 Degrees Celsius
Showers.
Chance of any rain:80%
Amount:Nil
Perth Metropolitan Area:
Partly to mostly cloudy.A high(80%) chance of showers.Winds westerly at 15-30 km/h.
Cha
Figure 1.Surface synoptic chart at 12 UTC(8 PM local time yesterday).Image courtesy of the Australian Bureau of Meteorology(BOM).
2.
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).
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).
