2021 Atlantic Hurricane Season Forecast: August Update

Jeff Dunsavage, Senior Research Analyst, Triple-I, 08/05/21

Colorado State University (CSU) hurricane researchers have slightly reduced their forecast for 2021 Atlantic hurricane activity in an August 5 update.

The CSU Tropical Meteorology Project team, led by Triple-I non-resident scholar Dr. Phil Klotzbach,  predicts 18 named storms this year (down from 20 in the previous forecast), eight of which are expected to become hurricanes (down from nine). Four of the hurricanes are expected to be “major” (Category 3, 4, or 5).

Despite the slight drop in the number of storms, the 2021 hurricane season – which runs from June 1 to November 30 — is forecast to be above average and follows a record-breaking 2020 season. An average season has 14 named storms, seven hurricanes and three major hurricanes.