Gabrielle Upgrades to Hurricane Southeast of Bermuda

MIAMI — Gabrielle has strengthened to a hurricane in the Atlantic Ocean, southeast of Bermuda, as of 4:50 p.m. ET on Sept. 21, 2025, according to The Associated Press. The upgrade confirms the storm's intensified structure after it formed in the open Atlantic from a tropical cyclone. A hurricane is defined as a tropical cyclone with sustained winds of at least 74 mph, a threshold used by forecasters to classify intensity.

Forecasters were continuing to monitor Gabrielle and issue advisories as needed. The storm was located in the open Atlantic, well away from major landmasses, and remained under observation by weather agencies as it moves. The AP report did not indicate an imminent land threat, and no land-based warnings were noted in the latest update.

The development adds to an active Atlantic hurricane season, a period when storms can intensify rapidly in warm Atlantic waters. Climate researchers have noted that higher sea-surface temperatures in recent years tend to contribute to stronger storms, though outcomes depend on a range of atmospheric conditions. Forecasters emphasize that updates will be issued as Gabrielle evolves and that residents along potentially affected coasts should rely on official advisories for the most current information.

As the storm continues its trek through the Atlantic, analysts will watch changes in intensity and trajectory. The Associated Press report provides the latest confirmation of Gabrielle's status, underscoring the ongoing vigilance of meteorological agencies as they track systems across the region. Public weather offices will continue to provide periodic updates to keep communities informed about any changes in strength or path.