From the Document: "On September 1-2, 2019, Hurricane Dorian, a Category 5 storm with winds of 180 miles per hour and storm surges of up to 23 feet, caused widespread damage to the islands of Grand Bahama and Abaco in the northwestern Bahamas, a country of some 700 islands off the southeast coast of the United States. [...] According to the U.S Agency for International Development (USAID), 60% of the structures on Grand Bahama and Abaco were completely or severely damaged and 27% were moderately damaged. Among the areas suffering the most severe damage was Abaco's town of Marsh Harbour. Thousands of people from the two islands have relocated to other parts of the Bahamas, especially New Providence Island, where Nassau, the capital of the Bahamas is located; about 1,600 were residing in shelters as of September 23. According to press reports, U.S. Customs and Border Protection maintained that about 3,900 Bahamian evacuees had arrived in Florida as of September 13."
CRS Insight, IN11171
Congressional Research Service: https://crsreports.congress.gov/