More August waterspouts - in QC and NS
The NTP has confirmed three late-August waterspouts in Quebec and Nova Scotia. On August 23, two waterspouts occurred over the Gulf of St. Lawrence - one near Les Îles-de-la-Madeleine, QC and the other near Inverness, NS. On August 25, a waterspout developed over Lake of Two Mountains near Vaudreuil-Dorion, QC. Confirmations are based on witness video and photos. None of the waterspouts moved ashore - therefore EF0-Default ratings were assigned and the Tornado (over water) classification was used.
More details are available in the event summaries below, along with a regional map. The tornadoes can be plotted on a map via the NTP Dashboard .
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Event Name: Gulf of St. Lawrence (Les Îles-de-la-Madeleine, QC)
Date: August 23, 2024
Start Time: 2:20 PM ADT (1720 UTC)
Final Classification: Tornado (Over Water)
Final EF-Scale Rating: EF0-Default
Estimated Tornado Location: 47.38N, 61.52W
Description: Witnesses captured video and photos of a waterspout over the Gulf of St. Lawrence near Les Îles-de-la-Madeleine. No damage was reported. Event time is based on witness report.
Event Name: Gulf of St. Lawrence (Inverness, NS)
Date: August 23, 2024
Start Time: 6:48 PM ADT (2148 UTC)
Final Classification: Tornado (Over Water)
Final EF-Scale Rating: EF0-Default
Estimated Tornado Location: 46.40N, 61.56W
Description: Witnesses captured photos of a waterspout over the Gulf of St. Lawrence near Inverness. No damage was reported. Event time is based on witness report.
Event Name: Lake of Two Mountains (Vaudreuil-Dorion, QC)
Date: August 25, 2024
Start Time: 3:50 PM EDT (1950 UTC)
Preliminary Classification: Tornado (Over Water)
Preliminary EF-Scale Rating: EF0-Default
Estimated Tornado Location: 45.45N, 73.99W
Description: Witnesses captured video and photos of a waterspout over Lake of Two Mountains near Vaudreuil-Dorion. No damage was reported. Satellite imagery review of the shoreline is pending. Event time is based on witness report.
Regional map showing the locations of the three waterspouts from Aug 23 and Aug 25.
