Perth overnight thunderstorms
Overnight when most people were sleeping thunderstorms formed over parts of the Perth Metropolitan Area.
The thunderstorms were associated with instability aloft ahead of an upper level trough
During the day and night on Tuesday there were plenty of altocumulus castallanus clouds indicative of the instability aloft ahead of the upper level trough.
Radar loop:
The thunderstorms were associated with instability aloft ahead of an upper level trough
During the day and night on Tuesday there were plenty of altocumulus castallanus clouds indicative of the instability aloft ahead of the upper level trough.
Radar loop:
Access the full loop at https://theweatherchaser.com/radar/IDR703/2021-01-20-01/2021-01-20-06/Australia%2FPerth .
Satellite loop:
Lightning strikes 1 hour prior to 3:00 AM:
500 hPa winds showing the upper level trough to the west at that time:
Weather balloon sounding indicating instability aloft: