Hurricane Erin strengthens into a Cat 2 storm
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Erin is forecast to become a Category 4 hurricane, threatening Puerto Rico, Bermuda, and U.S. coasts with flooding and surf. Follow Newsweek's live blog.
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.
As of the latest advisory on Aug. 11, Invest 97L has a high chance — 90% — chance of strengthening in the next seven days.
The National Hurricane Center is predicting Invest 97L could become a tropical depression or tropical storm as early as later this morning, Aug. 11.