September 2026 General Discussion

[Torchageddon]

Quote

12:19 PM EDT Wednesday 2 September 2026

Impact Level: High

Forecast Confidence: High

Conditions are favourable for the development of dangerous thunderstorms that may be capable of producing damaging wind gusts, large hail and heavy rain.

Hazards:
Damaging winds with gusts in excess of 110 km/h possible.
Quarter to ping pong ball size hail.
Torrential downpours with local rainfall amounts up to 50 millimetres.
Risk of a tornado.

Timing:
This afternoon to this evening.

Additional information:
Thunderstorms are expected to develop mid to late this afternoon along and ahead of an advancing cold front. There still remains some uncertainty with how strong thunderstorms could become due to some lingering cloud cover across the region which could inhibit how much instability builds in. Latest trends in observational data and models still indicate that sufficient instability should build leading to a robust severe weather threat. 

The primary concern with any thunderstorms will be for strong and potentially damaging winds along with large hail and torrential rain. That being said, conditions could become favourable for some thunderstorms to be able to produce a tornado.

Very high gusts in this watch. The latest cells formed just to my east so dodged the 3rd round at noon which WUN picked up on. A cell near Flesherton that is elongating is exploding with a likely hail core and major lightning in less than 15 mins! These cells are already intense!

[Chinook]

59 minutes ago, Torchageddon said:

Very high gusts in this watch. The latest cells formed just to my east so dodged the 3rd round at noon which WUN picked up on. A cell near Flesherton that is elongating is exploding with a likely hail core and major lightning in less than 15 mins! These cells are already intense!

large storms already NW of Toronto

[Chinook]

London ONT may have a severe or tornado warning right now