Environment Canada continues to track a line of strong thunderstorms across eastern Ontario that caused severe damage Sunday evening and may have produced a tornado.
The most recent tornado warning was issued just before 10:30 p.m. for a swath of the region from Brockville, Ontario to Gananoque, Ontario.
It came less than an hour after a similar warning was lifted for the Frontenac Provincial Park area north of Kingston, Ont.
The storm is capable of generating winds of 100 km/h, Environment Canada said in its latest warning, calling it a “dangerous and life-threatening situation.”
Large hail and heavy rain were also possible, the agency added.
Environment Canada advised people to shelter indoors in a room on the lowest floor, away from exterior walls or windows, as tornadoes cannot be seen at night and can strike without warning.
The warning was lifted for Brockville shortly after 11 p.m., but remains in effect for Gananoque and nearby Mallorytown.
“Significant” damage: OPP
Sunday night’s powerful storm has already caused damage in the area around Highway 7 near the communities of Tweed, Madoc and Marmora, said Ontario Provincial Police Acting Sgt. Erin Cranton.
There have been reports of “significant” damage to homes and property, along with downed trees and downed power poles, Cranton told CBC Ottawa on Sunday night.
As of 10 p.m., there were no reports of injuries or fatalities, Cranton said.
Hydro One was reporting that more than 32,000 customers across Ontario were without power as of 11 p.m. The company said in a tweet that its crews were working “as quickly and as safely as possible” to restore power.