Canada

‘Supercell storm’ forces evacuation, closure of provincial park in northwestern Ontario

A provincial park in northwestern Ontario was evacuated and will remain closed for the week after an overnight storm tore through the area.

Provincial police said emergency crews were dispatched to Caliper Lake Provincial Park, in the Sioux Narrows-Nestor Falls area, shortly after midnight Monday after receiving reports of a major weather event.

The city of Sioux Narrows-Nestor Falls described it as a “supercell storm” with strong winds. The municipality’s Facebook post said firefighters and police were still responding to emergency calls.

According to Environment Canada, most summer severe weather events are produced by a supercell, a special type of thunderstorm where multiple strong updrafts continue to feed the storm, which can allow it to maintain intensity for hours.

Hydro One’s online storm center page shows outages affecting about 350 customers in an area along Highway 71 north of Highway 11 that includes Caliper Lake.

Police said at Caliper Lake Park, multiple trees were downed and fell on campers and vehicles while blocking the road.

No injuries were reported, police added.

The Ontario Parks website indicates that Caliper Lake Park will be closed until at least Friday.

Police said travel in the Nestor Falls area is advised to be limited due to downed trees and wires.