Hurricane Erin dazzled forecasters over the weekend, putting on a spectacular show of strength rarely observed, becoming only the 43rd Atlantic-basin Category 5 hurricane on record and tying Camille in 1969 for the 4th earliest-forming Category 5 ever recorded.

Though Hurricane Erin is not forecast to make landfall on the U.S., the storm’s rapid intensification has prompted increased measures in North Carolina.

Anyone who rides out a Cat 5 storm in a high-rise should be prepared for an eyes-wide-open nightmare and an apocalyptic aftermath, one expert warns. The higher up you are, the stronger the winds

Forecasters are tracking a new disturbance in the Atlantic Ocean as Hurricane Erin, a Category 5 storm, undergoes an eyewall replacement cycle, according to a Saturday night update from the National Hurricane Center.