Hurricane Erin is now Category 2 storm
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Fox Weather on MSNTropical Storm Erin expected to become a hurricane Friday as Tropical Storm Watches in effect for Caribbean
Tropical Storm Erin is on the cusp of strengthening into a hurricane, which it is expected to become later this Friday, as it bears down on the northern Caribbean islands.
Tropical Storm Erin is continuing to move west and is forecast to become a hurricane later this week, according to the National Hurricane Center.
Erin has strengthened into a hurricane as it approaches Puerto Rico and the Virgin Islands, bringing heavy rains that could cause flooding and landslides.