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Flash Flood in Alleghany County, North Carolina
Flash Flood August 6, 2023 · Alleghany County, North Carolina
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
About 6 inches of water was observed flooding over Allen Road near the intersection with Topia Road, most likely caused by Prathers Creek rising out of its banks due to 3 to 5 inches of rain falling within a 2 hour period at rates of up to 5 inches per hour. No damage was reported to the road, and it was reopened to traffic after the flooding receded.
The wider storm
Showers and thunderstorms developed across northwest North Carolina to the south of a stationary front draped across northern Virginia into central West Virginia. By early afternoon, a surface trough had developed along the lee side of the Blue Ridge Mountains, providing the lower atmospheric convergence needed to aid in thunderstorm development. A couple of the storms increased to severe levels and produced damaging winds which downed trees, while flash flooding occurred with one slow-moving storm that produced an estimated 4 to 5 inches of rainfall within a 2-hour period.
Began near Peden (36.4993, -81.3091).
Source: NOAA Storm Events Database, event 1131402. Narratives are written by the National Weather Service forecast office that issued the report.
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