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.

Tropical Storm Erin is continuing to move west and is forecast to become a hurricane later this week, according to the National Hurricane Center.

The National Hurricane Center said Tropical Storm Erin is expected to begin strengthening today, Aug. 13 and become a hurricane Friday, Aug. 15, and a strong Category 3 hurricane by Sunday, Aug. 17 as it moves out of an area with dry area and "marginal" sea surface temperatures.