FAYETTEVILLE, N.C. _ As Hurricane Florence surged toward land last week, meteorologists and emergency agencies took notice. The storm was a Category 4 hurricane, the second-strongest type, and it was drawing a bead on the Carolina coast.
By the time it made landfall on Friday, however, Florence had been downgraded to Category 1 _ and it wasn't long before it was further diminished to a tropical storm, and then a tropical depression. To some people in North Carolina and South Carolina, that sounded like good news.
The National Hurricane Center begged to differ. It repeatedly warned people that Florence remained highly dangerous, with the potential for catastrophic flooding.
"Do not focus on the wind speed category of #Hurricane #Florence!" the center tweeted, somewhat frantically.
That led some people to wonder: If it's so dangerous, why doesn't it carry a scarier designation? Here are some answers to key questions about the Saffir-Simpson Hurricane Wind Scale.
