Oregon

Storm History: Multnomah County, Oregon

90 episodes, 122 events since 1957

Every storm the National Weather Service has filed in Multnomah County, Oregon: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
122
Deaths
25
Injuries
8
Damage
$3.9 million
Episodes
90

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Multnomah County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Flood2002$3.1 million
Heavy Rain1900$241,000
Debris Flow1321$39,000
Thunderstorm Wind1223$62,000
Tornado1000$320,000
Hail700$10,000
Heavy Snow700
Ice Storm700$100,000
Funnel Cloud600
Frost/Freeze500
Lightning401$2,000
Excessive Heat480
Flash Flood300
Heat3120
High Wind100
Cold/Wind Chill111

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Multnomah County, with its track

Every episode, newest first

More

Tornadoes in Multnomah CountyEvery warning in Multnomah County since 1986Every county in Oregon

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.