Flooding Rainfall From Nov 10th-14thThe first November tropical system to affect the Blacksburg Forecast Area in a number of years was the remains of Hurricane Ida, which made landfall in Alabama early on the 10th. The storm remnants tracked northeast across southern Georgia to the Atlantic coast over the next several days bringing widespread heavy rains of 3 to 6 inches (with isolated higher amounts – see graphic and table below) across portions of the Dan and Roanoke river basins, and 1 to 3 inches in the New and James river basins. Most of the rain fell in about a 36-hour period from the afternoon of November 10 through early November 12. Rainfall rates were moderate but persistent during this period in many areas, generally remaining under 0.25”/hr with little or no convection. Given relatively wet soils and the time of year there was substantial runoff. Widespread stream and river flooding occurred with near major flooding on the Dan River and minor flooding on upper Roanoke.
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