If a storm is a Category 3, 4 or 5, it is deemed a "major" hurricane due to the potential for "significant loss of life and ...

Hurricane Erin forges ahead on a western track at 16 mph, but Miami's NHC expects the hurricane will soon round a corner ...

Hurricane Erin raced from a Category 1 to a Category 5 storm. If Erin keeps ramping up, is there a Category 6?

Hurricane Erin, the first of 2025, quickly became a Cat 5 storm late Saturday morning, but is now a Cat 4. That could still change though.

Storms that ramp up so quickly complicate forecasting and make it harder for government agencies to plan for emergencies.