Storms that ramp up so quickly complicate forecasting and make it harder for government agencies to plan for emergencies. Hurricane Erick, a Pacific storm that made landfall June 19 in Oaxaca, Mexico, also strengthened rapidly, doubling in intensity in less than a day.

Hurricane Erin's outer bands were beginning to lash the southeast Bahamas and the Turks and Caicos Islands early Monday after regaining Category 4 strength overnight.

Hurricane Erin remained a Category 4 storm throughout the day. Here's a look at the latest forecast and spaghetti models.

Parts of North Carolina's Outer Banks have been placed under a tropical storm and storm surge watch as the still-growing, powerful, major Hurricane Erin begins a northward turn Tuesday that could send hazardous surf,

Forecasters said Erin should begin to slowly weaken as it increased wind shear. However, it's predicted to remain a major hurricane until late next week.