U.S. Nuclear Regulatory Commission

4 deaths reported as Hurricane Irma rakes Caribbean, with Florida likely in crosshairs

4 deaths reported as Hurricane Irma rakes Caribbean, with Florida likely in crosshairs

Floridians hit the highways, scrambled for scarce supplies and hammered plywood over windows as a monster hurricane made landfall in the Caribbean, where it was blamed for at least four deaths.

Hurricane Irma, one of the most powerful Atlantic hurricanes, set a wild, wind-churned course toward Puerto Rico, with the U.S. mainland in its sights, probably over the weekend.

Amid an overnight assault of battering waves and 185 mph winds, two deaths were reported in French island territories, a third in Anguilla, a British territory, and a fourth in Barbuda, part of a tiny independent nation.

In Florida, Gov. Rick Scott implored constituents to obey calls to flee the storm’s...