Overview
- The National Hurricane Center upgraded Invest 91‑L to Tropical Storm Hanna Monday, locating its center about 870 miles east-northeast of Bermuda with maximum sustained winds near 45 mph and a central pressure of 1006 millibars.
- Hanna is moving east at about 17 mph, has tropical-storm-force winds extending roughly 90 miles from its center, and is forecast to track east to southeast before slowing and turning northeast.
- No coastal watches or warnings are in effect and the NHC says Hanna poses no hazards to land as it is expected to show little strengthening over the next few days.
- Meteorologists link the season’s weak storm development to a strong El Niño that increases upper-level wind shear and injects dry air, conditions that disrupt thunderstorm organization and limit intensification.
- Hanna is the eighth named storm of the Atlantic season and continues a rare stretch with no hurricanes so far, but forecasters urge mariners and coastal interests to monitor NHC updates because late‑season changes can still allow new development.