Environment Canada forecasts “heavy rainfall” in Bracebridge, Gravenhurst, and other parts of Southern Ontario thanks to Hurricane Beryl.
Officials with the weather agency expect it to pour late Tuesday night or Wednesday morning before it begins to clear up Thursday.
They suggest between 20 and 40 mm could fall per hour at times with localized rainfall exceeding 60 mm in some areas.
“Although confidence in the exact track of the weather system remains somewhat uncertain, these type of systems in the past have given very high rainfall rates in torrential downpours,” they add.
Hurricane Beryl formed in late June and passed through the Caribbean islands last week before hitting Texas on Monday.
It’s the earliest storm to form into a Category 5 hurricane (the highest category on the Saffir-Simpson scale which is used to measure hurricanes) in the Atlantic Ocean.