The fast and easy way to know about the weather during this hurricane season in the Atlantic, Caribbean Sea and Gulf of Mexico.MORE INFORMATION
On December 9, 2020, TSR issued an extended range forecast for the 2021 hurricane season, predicting slightly above-average activity with 16 named storms, 7 hurricanes, 3 major hurricanes, and an ACE index of about 127 units. TSR cited the expected development of a weak La Niña during the third quarter of 2021 as the main factor behind their forecast. CSU released their first predictions on April 8, 2021, predicting an above-average season with 17 named storms, 8 hurricanes, 4 major hurricanes, and an ACE index of 150 units, citing the unlikelihood of an El Niño and much warmer than average sea surface temperatures in the subtropical Atlantic.
TSR updated their forecast on April 13, with 17 named storms, 8 hurricanes, and 3 major hurricanes, with an ACE index of 134 units. On the same day, University of Arizona (UA) issued its seasonal prediction of above-average hurricane activities, with 18 named storms, 8 hurricanes, 4 major hurricanes, and an ACE index of 137 units. North Carolina State University (NCSU) made its prediction for the season on April 14, calling for an above-average season with 15-18 named storms, 7-9 hurricanes, and 2-3 major hurricanes.