(Reuters) - Kirk has become a powerful extratropical cyclone, and is still causing large swells and rip current risk along the U.S. East Coast, the U.S. National Hurricane Center said on Monday.

According to the National Hurricane Center, "rapid intensification" is when the maximum sustained winds in a tropical cyclone increase at least 30 knots (34.5 mph) in 24 hours. That's a leap of about ...

Of the 63 tropical cyclones that caused at least one billion dollars in damage in the United States from 1980 to June 2024 (Hurricane Beryl), 44 (70%) went through rapid intensification. Hurricanes ...

Less than 24 hours after forming, Hurricane Milton has roared to a monster Category 4 storm with winds of 150 mph.