Hail and tornadoes in Umatilla County, OR
Since January 2021, radar estimated hail somewhere in Umatilla County, OR on 20 days. The biggest estimate: 2 in or larger (hen egg), on Sat, May 20, 2023. Hail was reported to the National Weather Service inside the county on 4 days.
Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.
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 62 hail reports in Umatilla County, OR on 36 days, 1 of them 2 inches or larger. The largest: 2 in, near Helix, on Sat, May 30, 2020.
By decade: 2000s: 31 · 2010s: 20 · 2020s: 11
Tornadoes since 1950
6 tornadoes have touched Umatilla County, OR since 1950, none of them rated F3/EF3 or stronger.
Strongest
- Fri, May 6, 2022 · EF1 · 2.87 mi long, 175 yd wide · near Bingham Spgs
- Wed, May 6, 2009 · EF1 · 1.61 mi long, 40 yd wide · near Cayuse
- Tue, Mar 5, 2024 · EF0 · 0.15 mi long, 3 yd wide · near Blue Mtn
- Tue, Jun 27, 2023 · EF0 · 0.11 mi long, 10 yd wide · near State Line
- Sun, May 23, 2004 · F0 · 0.1 mi long, 10 yd wide · near Stanfield
Most recent
- Tue, Mar 5, 2024 · EF0 · 0.15 mi long, 3 yd wide · near Blue Mtn
- Tue, Jun 27, 2023 · EF0 · 0.11 mi long, 10 yd wide · near State Line
- Sat, Jun 11, 2022 · EFU · 0.02 mi long, 15 yd wide · near Barnhart
- Fri, May 6, 2022 · EF1 · 2.87 mi long, 175 yd wide · near Bingham Spgs
- Wed, May 6, 2009 · EF1 · 1.61 mi long, 40 yd wide · near Cayuse
- Sun, May 23, 2004 · F0 · 0.1 mi long, 10 yd wide · near Stanfield
By decade: 2000s: 2 · 2020s: 4
Still loading: NOAA's record goes back to 1950, and 2003 onward is in so far.
Every hail day since January 2021
- Sun, Aug 16, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, May 28, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Sep 11, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 29, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Mar 27, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Aug 15, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 5, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Aug 4, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Mar 23, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Aug 27, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jun 24, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, May 20, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Fri, May 19, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Aug 10, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jul 2, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (9 WSW KAMELA, OR)
- 1.5 in (5 SE UKIAH, OR)
- Sun, May 15, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.5 in (13 SE MISSION, OR)
- 1.5 in (3 NW MEACHAM, OR)
- Fri, May 6, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (11 S PENDLETON, OR)
- 1.25 in (9 S PENDLETON, OR)
- Thu, Aug 5, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jun 14, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1.75 in (2 SE KOOSKOOSKIE, OR)
- Wed, May 26, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
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.