FloodZoneMap.org

Flood — Multnomah, OR

Jan 13, 2021

A series of slow moving fronts brought periods of heavy rain along with strong winds. This resulted in high surf; coastal, river and urban flooding; landslides; and debris flows. As the front moved inland early on the 13th, a debris flow resulted in a fatality in the Columbia River Gorge. The front brought a burst of 35-50 mph winds to the Willamette Valley and southwest Washington interior resulting in over 100K customers without power across southwest Washington and northwest Oregon.

Source: NOAA National Weather Service Storm Events Database (event 938603). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Multnomah, OR

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

View Multnomah County flood data →

More Flood Stories

Flood1 death$39.7M damage

Umatilla, OR · Feb 6, 2020

Summary : Heavy snow on February 4-5, 2020 was followed by a period of heavy rain, February 5-7. Snow levels rose to near 5000 feet. The heavy rain and snow melt lead to moderate flooding and several landslides along the East Slopes of the Washington Cascades.

Read the full account →
Flood1 death$2.3M damage

Washington, OR · Dec 3, 2007

Two very powerful storms with origins in the Tropics brought hazardous weather to the Pacific Northwest. The entire forecast area experienced heavy rainfall for an extended period of time.

Read the full account →
Flood1 death

Tillamook, OR · Dec 3, 2007

Two very powerful storms with origins in the Tropics brought hazardous weather to the Pacific Northwest. The entire forecast area experienced heavy rainfall for an extended period of time.

Read the full account →
Flood$1.0M damage

Harney, OR · Mar 25, 2025

Rapid snowmelt due to warm temperatures caused the Silvies River to rise to 14.76 feet, about half a foot under the record of 15.2 feet. This caused significant flooding in and around Burns, Oregon while the river was in flood stage from March 25th through April 3rd and from…

Read the full account →