When its wind speed hits 74 mph, the storm officially becomes a hurricane. Inside the hurricane are warm, humid air circles inward around the eye, speeding up as it approaches the center.

Haus said his research focuses on two basic questions: How do hurricanes form, and how do they intensify? So his team examines conditions that might cause a hurricane to spin out, and works to ...

Millions were ordered to evacuate the region and rushing to do so. Hurricanes are tropical storms that form over tropical or ...