How hurricane categories forecast the scale of destruction

Hurricane Sam strengthened into a Category 4 storm as it moved west across the Atlantic Ocean, forecasters said Saturday. The hurricane was about 1,000 miles east-southeast of the northern Leeward Islands as of 5 p.

Sam becomes a category 4 hurricane

Hurricane Ida was upgraded to a Category Four storm, the US National Hurricane Center said Sunday, staying on course to hit New Orleans with sustained winds of 130 miles per hour.

Evacuations, fear as Hurricane Ida grows to Category 4 storm

Hurricane Dorian spun west across the Atlantic ocean toward Florida on Saturday after growing into an even stronger Category 4 storm as residents and visitors hunkered down in one of America's most popular tourist destinations.

Dorian churns toward Florida as dangerous category 4 hurricane