2021 Atlantic hurricane season (JNLT)

The 2021 Atlantic hurricane season was the second-most active Atlantic hurricane season on record, behind only the 2005 Atlantic hurricane season, with 23 named storms forming over the course of the year. It was also the costliest tropical cyclone season ever recorded worldwide and the deadliest Atlantic hurricane season since 1998, having caused a total of $455 billion in damages and 5,230 deaths. This season saw a record-breaking four hurricanes make landfall in the United States as a major hurricane - Ida, Mindy, Peter, and Victor.

The season officially began on June 1, although one pre-season tropical storm, Ana, formed in May. In July, Hurricane Danny became the first major hurricane of the season and the first July major hurricane in the Atlantic since 2008. in August, Ida became the season's first Category 5 hurricane before making devastating landfalls in the Yucatan Peninsula and Texas. Shortly afterwards, Hurricane Julian unusually stalled over northern Colombia, causing deadly mudslides and flash flooding. In September, Hurricane Mindy made history as it made a Category 5 landfall in the city of Miami before intensifying into the strongest and most intense Atlantic hurricane ever recorded; the storm then made a record-shattering 195 mph (315 km/h) landfall in Louisiana, creating a 40-ft+ storm surge along the Gulf Coast and almost completely leveling the city of New Orleans. Later in the month, Hurricane Peter became the season's third and final Category 5 storm before making landfall in North Carolina as a Category 4 hurricane - the strongest to strike the state since Hazel of 1954. Around the same time, Tropical Storm Rose made an unprecedented landfall in Morocco as a subtropical storm. In October, the Tampa Bay area saw its first major hurricane in a century in the form of Hurricane Victor, which then affected New England as a tropical storm. The season then officially ended on November 30, but not before Hurricane Beta formed and became the first December Atlantic hurricane since 2005.

Warmer-than-average sea surface temperatures, high moisture levels, and low wind shear promoted high levels of activity in the Caribbean and western MDR. Because of this, many forecasting groups predicted an above-average season; nevertheless, most predictions fell well short of the actual activity of the season.