Tornadoes over water in ON and NB
NTP investigations have concluded that a tornado (over water) occurred on July 20 at Lake Nipissing near North Bay, ON and on July 22 at Chaleur Bay near Bathurst, NB. A funnel cloud was observed above the spray vortex in each case.
Satellite imagery will be reviewed to see if there was any shoreline damage but for now the preliminary rating for both is EF0-Default. Note that if damage is found along a shoreline, the classification changes to 'Tornado (over land)'. Thus the classification of 'Tornado (over water)' is preliminary.
Summary information and a map are provided below. Event information can also be viewed and plotted via the NTP Dashboard at https://uwo.ca/ntp/dashboard.
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Event Name: Lake Nipissing (Burnt Island), ON
Date: July 20, 2023
Start Time: 6:50 PM EDT (2250 UTC)
Preliminary Classification: Tornado (Over Water)
Preliminary EF-Scale Rating: EF0-Default
Estimated tornado location: 46.225N, 79.857W
Description: Witnesses near Sandy Island and Burnt Island captured video and photos of a tornado over Lake Nipissing. No damage was reported and satellite imagery review is pending for signs of damage along shorelines. Preliminary classification and EF-scale rating is EF0-default tornado over water.
Event Name: Chaleur Bay (Youghall Beach), NB
Date: July 22, 2023
Start Time: 5:09 PM ADT (2009 UTC)
Preliminary Classification: Tornado (Over Water)
Preliminary EF-Scale Rating: EF0-Default
Estimated tornado location: 47.69N, 65.63W
Description: Witness at Youghall Beach captured video of a tornado over Chaleur Bay. No damage was reported and satellite imagery review is pending for signs of damage along shorelines. Preliminary classification and EF-scale rating is EF0-default tornado over water.
NTP Dashboard map showing the locations of the two tornadoes (over water), both rated EF0-Default.
