Hail and tornadoes in Multnomah County, OR
Since October 2020, radar estimated hail somewhere in Multnomah County, OR on 2 days. The biggest estimate: 1 in or larger (quarter), on Tue, Nov 5, 2024. Hail was reported to the National Weather Service inside the county on 0 days.
Radar estimates are NOAA's MESH: the largest hail the radar estimates aloft, on cells about 0.7 mile across, shown as the lower bound of a size band (“1.5+”). They often run larger than what reached the ground, and they aren't evidence of damage at any address.
Hail on record since 1955
NOAA's Storm Events database lists 6 hail reports in Multnomah County, OR on 6 days, 0 of them 2 inches or larger. The largest: 1.5 in, on Wed, Jul 31, 1991.
By decade: 1990s: 2 · 2000s: 4
Tornadoes since 1950
6 tornadoes have touched Multnomah County, OR since 1950, 1 of them rated F3/EF3 or stronger.
Strongest
- Wed, Apr 5, 1972 · F3 · 50 yd wide
- Tue, Nov 12, 1991 · F1 · 0.2 mi long, 30 yd wide
- Sun, Sep 8, 2019 · EF0 · 0.11 mi long, 120 yd wide · near River Jct
- Mon, Jul 1, 2019 · EF0 · 1.6 mi long, 40 yd wide · near St Johns Jct
- Sun, Oct 28, 2018 · EF0 · 1.15 mi long, 20 yd wide · near St Johns
Most recent
- Sun, Sep 8, 2019 · EF0 · 0.11 mi long, 120 yd wide · near River Jct
- Mon, Jul 1, 2019 · EF0 · 1.6 mi long, 40 yd wide · near St Johns Jct
- Sun, Oct 28, 2018 · EF0 · 1.15 mi long, 20 yd wide · near St Johns
- Tue, Nov 12, 1991 · F1 · 0.2 mi long, 30 yd wide
- Tue, Apr 9, 1991 · F0 · 0.2 mi long, 10 yd wide
- Wed, Apr 5, 1972 · F3 · 50 yd wide
By decade: 1970s: 1 · 1990s: 2 · 2010s: 3
Every hail day since October 2020
- Tue, Nov 5, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Aug 17, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Radar estimates and reports are for anywhere inside the county's boundary. Radar estimates come from NOAA's MRMS estimated hail size (MESH), the largest hail the radar estimates aloft on a ~1 km grid. They often run larger than the hail that reached the ground, and they aren't an observation at any address. Reports are what people reported to the National Weather Service. Neither is proof of damage or an official record for an insurance claim. From NOAA's Storm Events Database (NCEI), which records tornadoes from 1950, hail and thunderstorm wind from 1955, and every kind of storm from 1996. A tornado that crossed county lines is counted in each county it touched. Recent months are added as NCEI publishes them, a few months behind. Damage is in the dollars of its year and is often an estimate.