Hurricane Florence formed near Cabo Verde on August 31, steered toward the west-northwest with little exception by a large area of high pressure to its north.

[4] In early October, Hurricane Michael formed in the western Caribbean Sea, resulting in significant flooding across Central America and Cuba.

However, the majority of the storm's impact was felt in the Florida Panhandle, where Michael struck the coastline near Mexico Beach as a Category 5 hurricane, with winds of 160 mph (260 km/h).

In addition, Michael became the third deepest by atmospheric pressure, the fourth strongest by maximum winds, and the latest Category 5 hurricane to strike the United States on record.

Additionally, figures for maximum sustained winds and position estimates are rounded to the nearest 5 units (knots, miles, or kilometers), following the convention used in the National Hurricane Center's products.