Though Erin is not currently forecast to make landfall in the U.S., the East Coast could still get heavy rainfall associated with the storm, along with the northern Leeward Islands, the British Virgin Islands and southern and eastern Puerto Rico. Isolated flash flooding, landslides and mudslides are possible.

Brief: Tropical Storm Erin is likely to become a hurricane in the next 48 hours, according to the National Hurricane Center on Aug. 12.

Erin is on the verge of becoming the Atlantic season’s first hurricane. The storm had winds of 70 mph early Friday, according to the National Hurricane Center. Category 1 hurricane wind speeds, which start at 74 mph, are predicted to soon develop.