The Atlantic hurricane season reached a record-long delay on September 12, 2026, marking 103 days without a hurricane forming in the basin. According to hurricane expert Phil Klotzbach of Colorado State University, this year has become the least active season since 1950, with only five short-lived tropical storms recorded to date. The previous record for the latest first hurricane occurred on September 11 in both 2002 and 2013.
Meteorologists attribute the lack of hurricane activity to El Niño, a climate pattern characterized by unusually warm water in the central and eastern Pacific Ocean. This phenomenon produces record-strong wind shear across the Atlantic's main development region, which stretches from Africa to the Caribbean. Wind shear consists of changes in wind speed and direction at different atmospheric levels, a condition that can prevent tropical systems from organizing or intensifying into hurricanes.
Although no hurricanes have formed, two tropical storms caused significant flooding in the United States earlier this year. In June, Tropical Storm Arthur's remnants dropped 29.06 inches of rain in Cottonport, Louisiana, within 24 hours, a figure that is currently being reviewed as a potential state record. On September 1, Tropical Storm Edouard reached wind speeds 14 mph below hurricane strength before making landfall near the Texas-Louisiana border, resulting in flash flooding and rainfall totals exceeding 20 inches near Beaumont, Texas.
The scale of this year's suppression is reflected in the record-strong wind shear that dismantled Tropical Storm Dolly within 24 hours of its formation. For context, the statistical peak of the hurricane season occurred on Thursday, September 10, a date that historically carries a 76% chance of an active tropical storm or hurricane being present in the Atlantic. This year, the basin remained clear of such systems on that date. The reduction in activity translates to a quieter period for the commercial shipping, insurance, and tourism industries that typically face disruptions and higher operational costs during active storm months.
What happens next depends on whether El Niño’s wind shear persists through the remainder of the season, which officially ends on November 30. Forecasters are monitoring areas closer to the U.S. coast, including the Gulf of Mexico and the Southeast coast, where late-season storms often develop and where El Niño’s wind shear is sometimes less effective. The rainfall record for Cottonport, Louisiana, remains under official certification review. As of September 12, there are no immediate prospects for hurricane formation in the foreseeable future.