Erika will pass through the Leeward and northern Windward islands on Thursday.

During Friday, Erika then will travel through the British and United States Virgin Islands and Puerto Rico.

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The greatest threat to lives and property will be from flash flooding and mudslides.

A general rainfall of 2-4 inches (50-100 mm) is forecast with locally higher amounts. On Puerto Rico and the northeastern part of the Dominican Republic, rainfall of 4-8 inches (150-200 mm) is likely with greater amounts falling on the mountains.

Flash flooding has occurred on some of the Leeward Islands. On the island of Dominica, a disaster has taken place.

According to the Associated Press, four people are dead in Dominica due to mudslides.

At Canefield, Dominica, 8 inches of rain fell in six hours and received 12.70 inches of rain in 24 hours from Erika. Canefield received 2 inches of rain from Danny, just a few days earlier.

People Swept Away From Erika's Flooding in Dominica

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Winds will average between 40 and 60 mph (64 to 95 kph), with higher gusts. Seas will be dangerous for bathers and boaters. Winds of this strength can down trees, cause sporadic power outages and damage roofs and poorly built structures.

Erika Path and Intensity Concerns This Weekend, Next Week