There are a ton of weather terms that might be easy to confuse, including hurricanes, tropical depressions and tropical storms. Here’s the difference.
Tropical depressions form when a low-pressure area is accompanied by thunderstorms that produce maximum winds below 39 miles per hour.
As for tropical storms, those are more severe. Depressions become storms when winds reach between 39 and 73 mph. They also must follow a cyclone pattern to become a storm.
Hurricanes are a step up from a tropical storm, with winds of more than 74 mph. Hurricanes are further rated into five categories based on their wind speed:
Category 1: 74-95 mph
Category 2: 96-110 mph
Category 3: 111-129 mph
Category 4: 130-156 mph
Catgeory 5: above 157 mph
However, all three types of storms are fueled by warm, moist air near oceans in tropical areas.
The video above provides a full breakdown.
AJC coverage of Hurricane Dorian
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