Dorian heads for Atlantic Canada this weekend, some 'brutal' impact likely Digital Writers After a crippling impact on the Bahamas and further destruction expected along the U.S. Atlantic Coast, Hurricane Dorian is setting its sights on Canadian territory as it heads into Maritime waters this weekend. One of the most powerful Caribbean storms on record, Hurricane Dorian was at Category 5 strength when it slammed into the northern Bahamas early in the week, and at one point was all but stationary, parking itself over Grand Bahama and deluging it for most of two days. That's as its powerful winds whipped up storm surge that left huge portions of the island submerged.