Tropical Storm Erin is gaining strength in the Atlantic and is expected to become the first hurricane of the 2025 season by Friday, forecasters said. Here is the latest hurricane forecast, timeline, spaghetti models and potential Florida impact.

While a curve back out to sea is widely expected and forecast in models, any impacts Erin could have on Florida and the U.S. remains uncertain.

See latest spaghetti models for Tropical Storm Erin. Erin is expected to become a hurricane by the end of the week and a Category 3 storm by Sunday, Aug. 17. What impact Erin will have on Florida is uncertain at this time.