Dec 23, 2009
A strong upper level storm system moved its way out of the southern Great Basin and into the Southern Plains during the afternoon hours of December 23rd. Strong southerly flow was found ahead of this storm system with dewpoint temperatures in the lower to middle 60s noted northward to the Interstate 20 corridor of northeast Texas and northern Louisiana. Impressive deep layer shear was noted in the warm sector across the region which was conducive for discrete storm cells during the afternoon and
Source: NOAA National Weather Service Storm Events Database (event 208596). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Nevada County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.