HALIFAX - The Canadian Hurricane Centre says Ontario may see the worst of Sandy when it hits early next week.
Spokesman Bob Robichaud says while rainfall amounts are still hard to predict, southern and eastern Ontario could see between 50 and 100 millimetres late Monday and early Tuesday.
He says those areas will also see high winds, although they will likely not hit hurricane strength.
Sandy is currently moving northward over the Bahamas and is expected to continue to track north while maintaining its hurricane strength.
A large, high-pressure system over the Maritimes is expected to block Sandy's advance, pushing it into the mid-Atlantic states on late Monday or early Tuesday.
The storm is also being fed by a trough of low pressure in the U.S. Midwest.
Forecasters predict its effects will be far-reaching on Canadian territory, with rainy and blustery conditions also expected for Quebec and the Maritime provinces.
Sandy has so far killed more than 40 people in the Caribbean, wrecked homes and knocked down trees and power lines.