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Flash Flood · Puerto Rico
Flash Flood October 27, 2023 · Guaynabo, Puerto Rico
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Vehicle was trapped with people inside due to a flooded road in San Patricio Mall near a Walgreens and a Triple-s Building.
The wider storm
Moisture pulled into the region by TC Tammy (by that time well north of the area), in combination with an upper-level trough, a frontal boundary and a pre-frontal trough, produced numerous showers and thunderstorms across the islands. Between 3 and 7 inches of rain were observed across the northern, eastern, and central portions of Puerto Rico. Several Debris Flow episodes and at least 1 case of wind damage were reported. Swells from Tammy also produced hazardous marine and coastal conditions, resulting in coastal flood in several northern areas.
Began near Guaynabo (18.4096, -66.1040).
Source: NOAA Storm Events Database, event 1146037. Narratives are written by the National Weather Service forecast office that issued the report.
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