Authorities said most of those who died were older than 60 and had preexisting health conditions, which may have been exacerbated by the intense heat.

The strongest typhoon to hit the territory of roughly 150,000 people since 2002, Typhoon Mawar briefly made landfall Wednesday night as a Category 4 storm at Andersen Air Force Base, officials said.

Freezing rain and thunderstorms have pummeled parts of Ontario and Quebec.