Tropical Storm Erin is strengthening and could become a Category 4 storm with 130-mph winds within three days.

Despite steady strengthening on Thursday to near hurricane strength, Erin struggled overnight, with hurricane hunters finding a degraded core during pre-dawn missions Friday.

Tropical Storm Erin is expected to strengthen into a hurricane. See the latest update on Friday, Aug. 15. ...

Tropical Storm Erin has struggled to organize, but conditions are favorable for it to become a hurricane later today.

Tropical Storm Erin is now expected to become a Category 4 hurricane, with maximum sustained winds of 130-mph.

Heavy rainfall across the northernmost Leeward Islands, the U. S. and British Virgin Islands, as well as southern and eastern Puerto Rico, may lead to isolated flash and urban flooding, along with ...

The storm is expected to strengthen over the next few days as it cruises across the Atlantic and is expected to become a ...

Erin is becoming better organized and on track to become the first hurricane of the year and grow into a monster Category 4 ...

As Erin continues to churn over very warm water, the storm will gain quick momentum and will likely become the first major ...

Tropical Storm Erin slows to 17 mph but is expected to become a hurricane by Friday, likely tracking east of the U.S. East ...

Tropical Storm Erin is forecast to become a hurricane by Friday as it nears the northern Leeward Islands, prompting Tropical ...

Officials in the northern Caribbean are warning of heavy rains and dangerous swells as Tropical Storm Erin approaches the region ...