Powerful Hurricane Erin has undergone a period of astonishingly rapid intensification — a phenomenon that has become far more ...

Hurricane Erin briefly strengthened into a Category 5 storm. It is not expected to make a direct hit on the U.S. but will create dangerous surf.

Hurricane Erin rapidly intensified to a monster category 5 on Saturday before weakening slightly down to a four early Sunday as experts expect the storm's intensity to continue to fluctuate ...