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

Here's a quick, easy-to-read look on the latest about Tropical Storm Erin, including what Florida residents should be doing.

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

Tropical Storm Erin is expected to strengthen into a hurricane. See the latest update on Friday, Aug. 15. Tropical Storm Erin is continuing its path west on the way to becoming a major ...

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