Tropical cyclones become tropical storms when sustained winds reach 39–73 mph, are upgraded to hurricanes at 74 mph, and ...

The National Hurricane Center expects the storm to strengthen over the next several days and says it could become a hurricane ...

The National Hurricane Center says Tropical Storm Erin is making its way west across the Atlantic Ocean – but with the storm ...

Tropical Storm Erin formed Monday morning in the eastern Atlantic Ocean and forecasters expect it to become the first ...

Tropical Storm Erin formed in the eastern Atlantic Ocean on Monday, forecasters said. The storm could strengthen to become ...

Tropical Storm Erin has officially formed in the Atlantic, and it could be on track to become the first hurricane of the ...

There were no coastal watches or warnings in effect for either storm, the Miami-based National Hurricane Center said.

Hurricane forecasters were eyeing two developing tropical systems in the Atlantic Ocean Aug. 10 – one of which could pose an ...

The National Hurricane Center is tracking two tropical waves in the eastern and central Atlantic Ocean, far from the U.S.

Tropical Storm Erin continues to move quickly west, and is expected to become the first hurricane of the Atlantic season.

Hurricane forecasters say Tropical Storm Erin is set to strengthen into a hurricane and then a major hurricane within a matter of days.

For now, most reliable computer models that meteorologists use show Erin curving away from the United States, spinning off the East Coast later in August.