Storms that ramp up so quickly complicate forecasting and make it harder for government agencies to plan for emergencies.

Hurricane Erin has strengthened into a Category 2 storm as it approaches Puerto Rico and the Virgin Islands, bringing heavy ...

As of 5 a.m. on Sunday, Hurricane Erin has weakened back to a Category 3 storm but has grown larger, the National Hurricane ...

BEAUMONT, Texas — Tropical Storm Erin is moving quickly westward across the Atlantic Ocean and could strengthen into a ...

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

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Hurricane Erin has maintained 125 mph winds as it brought damaging impacts to parts of the Puerto Rico and the U.S. Virgin ...

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

At the start of the storm, Hurricane Erin was gauged as high as a catastrophic Category 5 storm with a wind speed of 240 km/h ...

Hurricane Erin restrengthened into a Category 4 storm late Sunday, with forecasters warning it is expected to intensify and ...

The federal government has sent more than 200 workers from FEMA and other agencies to Puerto Rico as a precautionary measure.

It quickly powered up from a tropical storm to a Category 5 in a single day, the National Hurricane Center said.