Oregon, 2010

Extreme Cold and Heavy Snow in Oregon, November 21 to 24, 2010

November 21 to 24, 2010 · NWS PDT · 22 events in 12 counties and zones

An Arctic cold front combined with Pacific moisture to produce widespread heavy snowfall and very cold temperatures. 5), 4 miles south southwest of Bend (9), and 9 miles west of La Pine.

Where it happened

Every event with a place to put it; 20 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
22

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.

What happened

The episode as NWS PDT wrote it up.

An Arctic cold front combined with Pacific moisture to produce widespread heavy snowfall and very cold temperatures. Snowfall amounts in inches included 2 miles west of The Dalles (5), 3 miles southwest of Lyle (5), Moro (5.5), 11 miles south southeast of Celilo (4), 2 miles north of Hermiston (5), Irrigon (6), Imbler (5), Elgin (5), 21 miles east southeast of Joseph (9), 5 miles east northeast of Troy (12), 15 miles southeast of Heppner (18), 7 miles south southeast of Fox (12), 5 miles north northwest of Service Creek (4), 10 miles northwest of Monument (12), Seneca (6), 7 miles east southeast of John Day (8), Helix (7), Weston (8), Condon (6), 5 miles west northwest of Ruggs (4.5), Heppner (5), 2 miles south southwest of Camp Sherman (17), 5 miles north northwest of LaPine (12), 5 miles south southwest of Bend (8.5), 4 miles south southwest of Bend (9), and 9 miles west of La Pine.

Extreme cold temperatures followed the snowfall with many locations setting records on November 24th including Joseph (-9), Long Creek (-10), Meacham (-24), Pendleton (-7). Other sub zero temperatures were observed at Bend (-8), Hermiston (-8), Joseph (-11), LaGrande (-6), Redmond (-8), Antelope (-5), Condon (-2), Moro (-7), Mitchell (-1), Seneca (-19), and Union (-8).

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

12 heavy snow, 10 extreme cold/wind chill. Local standard time, as filed.

Heavy Snow, Foothills of the Northern Blue Mountains of Oregon

When
November 21, 11:00 AM PST to November 23, 12:00 PM PST
Where
Foothills of the Northern Blue Mountains of Oregon forecast zone
Reported by
Trained Spotter
Coordinates
45.592, -118.737 (the zone’s center; the record gives no point)

Heavy Snow, Foothills of the Southern Blue Mountains of Oregon

When
November 21, 11:00 AM PST to November 23, 12:00 PM PST
Where
Foothills of the Southern Blue Mountains of Oregon forecast zone
Reported by
Trained Spotter
Coordinates
45.174, -119.941 (the zone’s center; the record gives no point)

Heavy Snow, Ochoco-John Day Highlands

When
November 21, 11:00 AM PST to November 22, 8:00 PM PST
Where
Ochoco-John Day Highlands forecast zone
Reported by
Amateur Radio
Coordinates
44.381, -120.359 (the zone’s center; the record gives no point)

Heavy Snow, Southern Blue Mountains

When
November 21, 11:00 AM PST to November 23, 1:00 AM PST
Where
Southern Blue Mountains forecast zone
Reported by
Trained Spotter
Coordinates
45.153, -119.262 (the zone’s center; the record gives no point)

Heavy Snow, Northern Blue Mountains

When
November 21, 2:00 PM PST to November 23, 11:00 AM PST
Where
Northern Blue Mountains forecast zone
Reported by
Mesonet
Coordinates
45.494, -117.976 (the zone’s center; the record gives no point)

Heavy Snow, East Slopes of the Oregon Cascades

When
November 21, 4:30 PM PST to November 23, 5:00 AM PST
Where
East Slopes of the Oregon Cascades forecast zone
Reported by
Trained Spotter
Coordinates
44.568, -121.190 (the zone’s center; the record gives no point)

Heavy Snow, John Day Basin

When
November 21, 11:00 PM PST to November 23, 5:00 AM PST
Where
John Day Basin forecast zone
Reported by
Trained Spotter
Coordinates
44.885, -120.192 (the zone’s center; the record gives no point)

Heavy Snow, Grand Ronde Valley

When
November 22, 7:15 AM PST to November 23, 6:00 AM PST
Where
Grand Ronde Valley forecast zone
Reported by
Trained Spotter
Coordinates
45.310, -118.009 (the zone’s center; the record gives no point)

Heavy Snow, Lower Columbia Basin

When
November 22, 10:00 AM PST to November 23, 6:00 AM PST
Where
Lower Columbia Basin forecast zone
Reported by
Trained Spotter
Coordinates
45.506, -119.160 (the zone’s center; the record gives no point)

Heavy Snow, North Central Oregon

When
November 22, 2:00 PM PST to November 23, 6:00 AM PST
Where
North Central Oregon forecast zone
Reported by
Trained Spotter

Heavy Snow, Wallowa County

When
November 22, 7:00 PM PST to November 23, 5:00 AM PST
Where
Wallowa County forecast zone
Reported by
Trained Spotter
Coordinates
45.445, -117.595 (the zone’s center; the record gives no point)

Heavy Snow, Eastern Columbia River Gorge

When
November 22, 8:00 PM PST to November 23, 11:00 AM PST
Where
Eastern Columbia River Gorge forecast zone
Reported by
Trained Spotter
Coordinates
45.314, -120.689 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, East Slopes of the Oregon Cascades

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
East Slopes of the Oregon Cascades forecast zone
Reported by
COOP Observer
Coordinates
44.568, -121.190 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Foothills of the Northern Blue Mountains of Oregon

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
Foothills of the Northern Blue Mountains of Oregon forecast zone
Reported by
COOP Observer
Coordinates
45.592, -118.737 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Foothills of the Southern Blue Mountains of Oregon

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
Foothills of the Southern Blue Mountains of Oregon forecast zone
Reported by
COOP Observer
Coordinates
45.174, -119.941 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Grand Ronde Valley

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
Grand Ronde Valley forecast zone
Reported by
COOP Observer
Coordinates
45.310, -118.009 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Lower Columbia Basin

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
Lower Columbia Basin forecast zone
Reported by
COOP Observer
Coordinates
45.506, -119.160 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, North Central Oregon

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
North Central Oregon forecast zone
Reported by
COOP Observer

Extreme Cold/Wind Chill, Northern Blue Mountains

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
Northern Blue Mountains forecast zone
Reported by
ASOS
Coordinates
45.494, -117.976 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Southern Blue Mountains

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
Southern Blue Mountains forecast zone
Reported by
Mesonet
Coordinates
45.153, -119.262 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Ochoco-John Day Highlands

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
Ochoco-John Day Highlands forecast zone
Reported by
COOP Observer
Coordinates
44.381, -120.359 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Wallowa County

When
November 23, 6:00 PM PST to November 24, 12:00 PM PST
Where
Wallowa County forecast zone
Reported by
AWOS
Coordinates
45.445, -117.595 (the zone’s center; the record gives no point)

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.
Extreme Cold/Wind Chill
Temperatures or wind chills at or below the local warning criteria, or cold that caused deaths.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Oregon in 2010Every state in 2010This day in weather historyWarnings in Oregon, November 2010

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 2026-10-01. Each event’s entry at NCEI: 263248, 263249, 263255, 263257, 263254, 263245, 263251, 263250, 263252, 263253, 263258, 263247, 263339, 263343, 263345, 263346, 263354, 263363, 263368, 263395, 263397, 263402.