Wasco County, Oregon

County storm and disaster record · FIPS 41065 · population 26,599 · 2,381 sq mi

NOAA's Storm Events Database holds 420 records for Wasco County, Oregon from 1950 through June 30, 2026, on 292 days; the most frequent are winter storm records (166 records). 379 of them are forecast-zone records, which the National Weather Service files once per zone: a county covered by several zones receives each one, so a single storm can add several records on the same day. The deadliest single record is the August 1, 2013 wildfire, filed for the forecast zone East Slopes Of The Oregon Cascades, which covers the county: 1 death and 2 injuries. FEMA has issued 26 declarations naming the county since 1964, 24 of them for natural hazards; the latest for a natural hazard was “Grasshopper Fire” on July 25, 2026.

The record, 1950 to 2026

Storm records filed for the county each year (2026 to June 30, 2026). Before 1996 NOAA recorded only tornadoes (from 1950), thunderstorm wind and hail (from 1955).

  • recorded, no damage figure
  • under $100,000
  • $100,000 or more
  • $1 million or more
  • $10 million or more, or a death
  • $100 million or more, or 10 deaths
  • a year's colour: its recorded damage or deaths
  • a year with a death
  • 1955: wind and hail recorded from 1955
  • 1996: all 48 event types from 1996
Storm records
420on 292 days, 1950 to June 30, 2026
Deaths recorded
410 injuries
Damage, 2025 dollars
$1.6Mas filed (scale steps before 1993)
Tornadoes
1strongest F0
FEMA declarations
26latest 2026

Source: NOAA NCEI Storm Events Database, records through June 30, 2026 (file revision 20260918); damage converted to 2025 dollars with the BLS CPI-U. Search the record at NCEI. BLS consumer price index.

What hazards hit Wasco County most?

The most frequent records are winter storm records: 166 since 2000. 57% of its winter storm records since 2000 fell in December and January. The rank column places the county among Oregon's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Wasco County: records by hazard, 1950 to June 30, 2026
HazardRecordsDaysFirst, lastKilledInjuredDamageRank in state
Winter storms 166 118 2000-2026 0 5 $291K 20 of 36
High wind and dust storms 94 70 2000-2026 1 0 $728K 24 of 36
Wildfires 65 57 1998-2025 2 2 $364K 9 of 36
Extreme cold 28 14 2002-2025 0 0 $98K 22 of 36
Heat 24 14 2002-2023 0 0 – 18 of 36
Severe thunderstorm wind 17 13 1958-2023 0 0 $23K 16 of 36
Hail 14 12 1987-2020 0 0 – 19 of 36
Floods 6 5 2005-2020 0 0 – 31 of 36
Landslides and avalanches 3 3 2005-2014 1 1 $53K 18 of 36
Heavy rain 1 1 1998-1998 0 0 – 31 of 36
Fog, smoke and funnel clouds 1 1 1999-1999 0 2 $35K 29 of 36
Tornadoes 1 1 1970-1970 0 0 – 28 of 36

Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.

How many tornadoes has Wasco County had?

NOAA records 1 tornado in Wasco County from 1970 to 1970, the strongest rated F0, with 0 deaths and 0 injuries recorded in the county. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.

Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 1 tornado whose track touched Wasco County since 1950 (NOAA's county records number 1, the same count); along their whole tracks they killed 0 people.

Map of the strongest tornado tracks in Oregon.

Every tornado record filed for Wasco County (1)
Every tornado recorded in Wasco County, newest first
DatePlaceCharacterKilledInjuredDamage
1970-05-11 Wasco County F0 0.1 mi x 10 yd 0 0 –

Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.

When was the last damaging storm in Wasco County?

The most recent record with damage, injuries or deaths is the May 8, 2019 wildfire ($346,000 in damage in 2025 dollars).

An early season wildfire in La Pine sparked by a backyard debris burn that got out of control burned 12 acres destroying one house and damaging another.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 811886)
The 12 most recent records kept for Wasco County
DateRecordCharacterKilledInjuredDamage
2026-04-14 Heavy SnowDeschutes County and 2 more · forecast zone East Slopes Of The Oregon Cascades 0 0 –
2026-04-01 Heavy SnowDeschutes County and 2 more · forecast zone East Slopes Of The Oregon Cascades 0 0 –
2026-03-11 High WindSherman County and Wasco County · forecast zone North Central Oregon 54 kt wind 0 0 –
2026-02-08 Heavy SnowDeschutes County and 2 more · forecast zone East Slopes Of The Oregon Cascades 0 0 –
2026-01-06 Heavy SnowDeschutes County and 2 more · forecast zone East Slopes Of The Oregon Cascades 0 0 –
2025-11-18 Frost/FreezeGilliam County and 2 more · forecast zone Eastern Columbia River Gorge 0 0 –
2025-11-18 Frost/FreezeSherman County and Wasco County · forecast zone North Central Oregon 0 0 –
2025-06-11 WildfireGilliam County and 2 more · forecast zone Eastern Columbia River Gorge 0 0 –
2025-03-14 Heavy SnowDeschutes County and 2 more · forecast zone East Slopes Of The Oregon Cascades 0 0 –
2025-02-24 High WindSherman County and Wasco County · forecast zone North Central Oregon 52 kt wind 0 0 –
2025-02-15 Heavy SnowDeschutes County and 2 more · forecast zone East Slopes Of The Oregon Cascades 0 0 –
2020-05-30 Thunderstorm WindShaniko, Wasco County 70 kt wind 0 0 –

Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.

The deadliest and costliest records

Records with deaths or injuries in Wasco County, most deaths first
DateRecordCharacterKilledInjuredDamage
2013-08-01 WildfireDeschutes County and 2 more · forecast zone East Slopes Of The Oregon Cascades Lightning sparked a fire about 14 miles north of Sisters OR on August 1st. A local news reports that 1 firefighter was killed and 2 were injured while working on the fire. The fire has grown to roughly 500 acres or 0.78 square miles. The injuries occurred as the tree fallers worked to suppress the fire. One ... 1 2 –
2014-03-30 AvalancheDeschutes County and 2 more · forecast zone East Slopes Of The Oregon Cascades A call came in at 3:30 P.M. to the Deschutes County Sheriff's Office reporting that an avalanche with a width of 200 yards and a length of about 100 yards had buried a man and his snowmobile. The depth of the debris field was about 3 to 5 feet. Search and Rescue crews located him around 5:50 P.M. 1 1 –
2018-07-17 WildfireSherman County and Wasco County · forecast zone North Central Oregon Inciweb. 1 0 –
2000-12-15 High WindSherman County and Wasco County · forecast zone Eastern Columbia River Gorge Strong crosswinds gusting as high as 60 mph blew a semi-truck off the Highway 97 bridge that crosses the Columbia River Gorge. The vehicle fell into the river, killing the driver. 1 0 $171K
2000-12-21 Winter StormJefferson County and 2 more · forecast zone North Central Oregon Light freezing rain that fell early in the morning left roads slick. This lead to at least 7 accidents over a period of 5 hours near the town of Madras. The most serious accident was a rollover on Highway 97 near High Bridge that injured several people. 0 5 $291K
1999-12-25 Dense FogJefferson County and 2 more · forecast zone North Central Oregon Freezing fog in north central Oregon and elsewhere in the Columbia Basin led to several accidents in Jefferson Co, Oregon. Poor visibilities and slick roads contributed to a dozen or more accidents on Highway-97 south of Madras. Another accident just west of Sisters, Or. caused two injuries. 0 2 $35K
The costliest records in Wasco County since 1993, damage in 2025 dollars
DateRecordCharacterKilledInjuredDamage
2019-05-08 WildfireDeschutes County and 2 more · forecast zone East Slopes Of The Oregon Cascades 0 0 $346K
2000-12-21 Winter StormJefferson County and 2 more · forecast zone North Central Oregon 0 5 $291K
2000-12-15 High WindSherman County and Wasco County · forecast zone Eastern Columbia River Gorge 1 0 $171K
1999-12-25 Dense FogJefferson County and 2 more · forecast zone North Central Oregon 0 2 $35K

Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.

Is it getting more frequent?

Records per decade for Wasco County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).

Wasco County: records per decade (the 2020s to June 30, 2026)
Hazard1950s1960s1970s1980s1990s2000s2010s2020-26
Winter storms––––0457447
High wind and dust storms––––0333922
Wildfires––––223355
Extreme cold––––061012
Heat––––07017
Severe thunderstorm wind10011455

Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).

What time of year?

57% of its winter storm records since 2000 fell in December and January. The two busiest months are in violet.

The values, month by month

Jan 58 · Feb 48 · Mar 22 · Apr 14 · May 16 · Jun 18 · Jul 41 · Aug 42 · Sep 12 · Oct 16 · Nov 49 · Dec 84 (records).

Source: NOAA NCEI Storm Events Database, records by the month they began.

Federal disaster declarations for Wasco County

FEMA's register lists 26 declarations that include Wasco County: 11 major disasters, 3 emergencies and 12 fire management assistance declarations. Most were for fire (14) and severe storm (4).

Declarations including Wasco County, newest first
DeclaredNumberTypeTitle
2026-07-25FM-5648FireGrasshopper Fire
2026-04-07DR-4907Severe StormSevere Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides
2025-06-11FM-5587FireRowena Fire
2025-01-01DR-4854FireWildfires
2024-07-11FM-5506FireLarch Creek Fire
2024-04-13DR-4768Severe StormSevere Winter Storms, Straight-Line Winds, Landslides, and Mudslides
2022-08-03FM-5446FireMiller Road Fire
2020-09-15DR-4562FireWildfires and Straight-Line Winds
2020-08-28FM-5341FireWhite River Fire
2020-08-13FM-5327FireMosier Creek Fire
2020-03-28DR-4499BiologicalCovid-19 Pandemic
2020-03-13EM-3429BiologicalCovid-19
2018-08-02FM-5265FireSouth Valley Fire
2018-07-18FM-5255FireSubstation Fire
2014-08-06FM-5073FireRowena Fire
2013-08-18FM-5046FireGovernment Flats Fire Complex
2009-08-28FM-2829FireMicrowave Fire
2007-02-22DR-1683Severe StormSevere Winter Storm and Flooding
2005-09-07EM-3228Coastal StormHurricane Katrina Evacuation
2004-02-19DR-1510Severe StormSevere Winter Storms
2002-07-26FM-2452FireOr - Sheldon Ridge Fire - 07/25/02
1996-02-09DR-1099FloodHigh Winds, Severe Storms and Flooding
1995-08-03DR-1061FloodFlooding
1977-04-29EM-3039DroughtDrought
1974-01-25DR-413FloodSevere Storms, Snowmelt & Flooding
1964-12-24DR-184FloodHeavy Rains & Flooding

Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.

How many floods has Wasco County had?

NOAA's Storm Events Database holds 6 flood or flash flood records for Wasco County from 2005 to 2020, on 5 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Wasco County ranks 2358th of 2,942 U.S. counties.

The National Flood Insurance Program has paid $94,000 on 10 claims filed in Wasco County; the most in one year was 4 in 1996. Claims count insured losses only: uninsured flood damage is not in this file.

The values, year by year

1996: 4 · 1997: 3 · 2006: 1 · 2009: 1 · 2019: 1; the other years: 0.

Source: FEMA OpenFEMA NFIP Redacted Claims, as of September 8, 2026; claims by year of loss, payments in the dollars of the year paid. OpenFEMA dataset page.

FEMA's modeled risk for Wasco County

FEMA's National Risk Index rates Wasco County Relatively Low overall, with an expected annual loss of $28.9 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.

National Risk Index ratings for Wasco County (December 2025 release), by FEMA's rating, then score
HazardRisk ratingExpected annual lossModeled frequency
WildfireRelatively High$15Monce in about 58 years (modeled)
Ice StormRelatively High$609Konce in about 4 years (modeled)
Volcanic ActivityRelatively Low$28Konce in about 79 years (modeled)
EarthquakeRelatively Low$2.4Monce in about 145 years (modeled)
AvalancheRelatively Low$9Konce in about 30 years (modeled)
Riverine FloodingRelatively Low$9.5Monce in about 9 years (modeled)
Cold WaveRelatively Low$799Konce in about 3 years (modeled)
Heat WaveRelatively Low$280K3.5 modeled event-days a year

Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.

Counties that share a border with Wasco County

  1. Clackamas County 875
  2. Hood River County 746
  3. Marion County 656
  4. Jefferson County 455
  5. Klickitat County, WA 435
  6. Wasco County 420
  7. Gilliam County 290
  8. Wheeler County 288
  9. Sherman County 280

Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.

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