Hurricane Hazel devastates the eastern seaboard of North America, killing 95 and causing massive floods as far north as Toronto. As a Category 4 upon landfall, it is the strongest storm on record to strike as far north as North Carolina.

Hurricane Hazel was the deadliest, second costliest, and most intense hurricane of the 1954 Atlantic hurricane season. The storm killed at least 469 people in Haiti before striking the United States near the border between North and South Carolina as a Category 4 hurricane. After causing 95 fatalities in the US, Hazel struck Canada as an extratropical storm, raising the death toll by 81 people, mostly in Toronto. As a result of the high death toll and the damage caused by Hazel, its name was retired from use for North Atlantic hurricanes.

In Haiti, Hazel destroyed 40 percent of the coffee trees and 50 percent of the cacao crop, affecting the economy for several years. The hurricane made landfall near Calabash, North Carolina, destroying most waterfront dwellings. It then traveled north along the Atlantic coast. Hazel affected Virginia, Washington, D.C., West Virginia, Maryland, Delaware, New Jersey, Pennsylvania, and New York; it brought gusts near 160 km/h (100 mph) and caused $281 million (1954 USD) in damage. When it was over Pennsylvania, Hazel consolidated with a cold front and turned northwest towards Canada. When it hit Ontario as an extratropical storm, rivers and streams in and around Toronto overflowed their banks, which caused severe flooding. As a result, many residential areas in the local floodplains, such as the Raymore Drive area, were subsequently converted to parkland. In Canada alone, over C$135 million (2020: C$1.3 billion) of damage was incurred.

The effects of Hazel were particularly unprecedented in Toronto due to a combination of heavy rainfall during the preceding weeks, a lack of experience in dealing with tropical storms, and the storm's unexpected retention of power despite traveling 1,100 km (680 mi) over land. The storm stalled over the Toronto area, and although it was now extratropical, it remained as powerful as a category 1 hurricane. To help with the cleanup, 800 members of the military were summoned, and a Hurricane Relief Fund was established that distributed $5.1 million (2020: $49.1 million) in aid.