Mar 16, 2017
An atmospheric river brought heavy rain and flooding to parts of southwest Washington. In addition, heavy rain combined with snowmelt runoff in eastern Washington contributed to rising river levels on the Columbia River. While flooding on the Cowlitz River only occurred with heavy rain on the 16th, longer lasting flooding occurred on the Columbia River which remained above flood stage until April 4th.
Source: NOAA National Weather Service Storm Events Database (event 689257). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Clark County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.