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Flood — Mariposa, CA

Jan 5, 2023

A large low pressure system brought moderate to heavy precipitation, widespread flooding and strong winds to the area on January 4 and 5. This system had an atmospheric river associated with it which contained a deep fetch of moisture of tropical origin resulting in widespread moderate to heavy precipitation across the area with the snow level ranging between 7000 and 8000 feet for much of the event. Several stations above 8000 feet picked up 18 to 30 inches of new snowfall from this storm. Many

Source: NOAA National Weather Service Storm Events Database (event 1063300). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Mariposa, CA

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

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