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Flash Flood — Richmond, NY

Aug 27, 2021

A backdoor cold front approached the area during the afternoon before stalling across the region during the evening and overnight. This front sparked a few widely scattered thunderstorms in a moisture rich environment, with precipitable water values from both the 8am and 8pm soundings from Upton, NY measuring around 2 inches. With weak upper level flow resulting in slow storm motions and wet antecedent conditions as a result of rainfall associated with Tropical Storm Henri less than a week earli

Source: NOAA National Weather Service Storm Events Database (event 982768). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Richmond, NY

This event is one of many recorded floods in Richmond County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

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