Jul 14, 2012
Deep surface based instability on the northeastern quadrant of an upper-level low tracking along the Washington, Oregon border promoted widely scattered thunderstorms across Eastern Washington on the afternoon of July 14th. One thunderstorm cell developed and remained stationary over eastern portions of Spokane for roughly 45 minutes. This cell produced very heavy rainfall and dime to quarter size hail. Drainage systems became overwhelmed and clogged causing water to pool in low spots of the
Source: NOAA National Weather Service Storm Events Database (event 387485). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Spokane County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.