Jul 27, 2012
Strong upper level winds combined with an unstable airmass to produce widespread convection during the evening hours. The primary threat from these storms was damaging winds. The storms later began to weaken and congeal into heavy rainfall producers, making flash flooding a threat into the overnight hours.
Source: NOAA National Weather Service Storm Events Database (event 403467). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Lewis County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.