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Flash Flood · Virgin Islands
Flash Flood July 20, 2010 · St. Thomas, Virgin Islands
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
At Wendy's restaurant, located at Mandela Circle in St. Thomas, the road in front of the restaurant was flooded. Heavy rains during the afternoon closed St. Thomas' Brookman Road, combined with street flooding near Havensight Mall.
The wider storm
An active tropical wave moved across Puerto Rico and the U.S. Virgin Islands on Monday July 19, generating numerous showers and isolated thunderstorms, some with very heavy rain. Although by Tuesday morning July 20 the tropical wave axis had moved into Hispaniola, the wave itself was maintaining a broad area of disturbed weather, aided in part by an upper level low pressure system just north northwest of the local area. By late Thursday July 22, the islands were still dealing with the effects of several days of widespread rainfall. Even though this tropical disturbance, which later became Tropical Storm Bonnie, was now located over eastern Cuba, it was still able to generate another band of moisture which brought additional areas of rainfall across Puerto Rico and the U.S. Virgin Islands. Flooding resulted from swollen guts in addition to urban flooding in Havensight and Brookman Road in Saint Thomas and at the Marketplace shopping center in Cruz Bay, Saint John. In Saint Croix, a trained observer reported 2.14 inches of rain in one hour, flooding was reported in Christiansted and Teague's Bay. Another spotter from the west end of Saint Croix recorded 2.88 inches on the 19th and 2.91 inches on the 20th. Airlines flights were affected by cancellations due to thunderstorms.
Began near St Thomas (18.3211, -64.8786).
Source: NOAA Storm Events Database, event 253566. Narratives are written by the National Weather Service forecast office that issued the report.
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