Hurricane Erin raced from a Category 1 to a Category 5 storm. If Erin keeps ramping up, is there a Category 6?

Some fluctuations in intensity are expected over the next couple of days due to inner-core structural changes.

Erin, the first hurricane of the season, exploded to a Category 5 hurricane Saturday, and despite fluctuations in intensity, ...

Hurricane Erin is now a Category 5 storm as it rapidly intensified and threatens the Leeward Islands and Puerto Rico, then ...

Offshore Hurricane Erin was downgraded to a Category 3 storm early Sunday, as rain lashed Caribbean islands and weather ...

Hurricane Erin’s winds dropped on Sunday as it wobbled westward, bringing heavy rain across the Virgin Islands and Puerto Rico before turning north and probably restrengthening in the coming days.

Hurricane Erin rapidly intensified into an extremely dangerous Category 5 cyclone as it stayed safely north of the Caribbean ...

This Sunday, cloud bands from Hurricane Erin are approaching Dominican territory, producing localized downpours, ...

Sunday will be hotter, with highs reaching the upper 80s to low 90s. A cold front will approach late in the day and into ...

Hurricane Erin rapidly strengthened offshore to a “catastrophic” Category 5 storm on Saturday (Sunday Manila time), as rain ...

As of Saturday morning, Air Force Reserve Hurricane Hunter aircraft indicated that Erin has become a Category 5 hurricane.

Hurricane Erin rapidly strengthened offshore to a "catastrophic" Category 5 storm on Saturday, as rain lashed Caribbean islands and weather officials warned of possible flash floods and landslides.