Aleutians West Census Area, Alaska

Census Area storm and disaster record · FIPS 02016 · population 5,168 · 4,393 sq mi

NOAA's Storm Events Database holds 501 records for Aleutians West Census Area, Alaska from 1950 through June 30, 2026, on 402 days; the most frequent are high wind and dust records (304 records). 495 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 February 25, 2020 avalanche, filed for the forecast zone Eastern Aleutians, which covers the county: 1 death. FEMA has issued 6 declarations naming the county since 2004, 4 of them for natural hazards; the latest for a natural hazard was “Severe Storms, Flooding, and Remnants of Typhoon Halong” on October 22, 2025.

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
501on 402 days, 1950 to June 30, 2026
Deaths recorded
10 injuries
Damage, 2025 dollars
$18Mas filed (scale steps before 1993)
FEMA declarations
6latest 2025

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 Aleutians West Census Area most?

The most frequent records are high wind and dust records: 304 since 2000. The rank column places the county among Alaska's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Aleutians West Census Area: records by hazard, 1950 to June 30, 2026
HazardRecordsDaysFirst, lastKilledInjuredDamageRank in state
High wind and dust storms 304 250 2000-2026 0 0 $8.1M 8 of 29
Winter storms 185 162 2001-2026 0 0 $96K 9 of 29
Heavy rain 3 3 1997-1999 0 0 – 1 of 29
Landslides and avalanches 3 3 2006-2020 1 0 $2.3M 11 of 29
Fog, smoke and funnel clouds 3 2 1997-2001 0 0 – 1 of 29
Hurricanes and tropical storms 2 2 1998-2000 0 0 $17K 3 of 29
Floods 1 1 2004-2004 0 0 $7.8M 24 of 29

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.

When was the last damaging storm in Aleutians West Census Area?

The most recent record with damage, injuries or deaths is the February 25, 2020 avalanche (1 death).

Anchorage Daily News reported the avalanche death of a snowmobiler on Unalaska Island. The avalanche was noticed around 5:30 p.m. and Search and Rescue was called since the victim was known to be in the area.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 871644)
The 12 most recent records kept for Aleutians West Census Area
DateRecordCharacterKilledInjuredDamage
2026-02-08 High WindAleutians West Census Area · forecast zone Central Aleutians 67 kt wind 0 0 –
2026-01-07 BlizzardAleutians West Census Area · forecast zone Pribilof Islands 0 0 –
2026-01-04 High WindAleutians West Census Area · forecast zone Central Aleutians 70 kt wind 0 0 –
2026-01-04 High WindAleutians West Census Area · forecast zone Eastern Aleutians 107 kt wind 0 0 –
2025-10-11 High WindAleutians West Census Area · forecast zone Pribilof Islands 80 kt wind 0 0 –
2025-04-15 Winter StormAleutians West Census Area · forecast zone Eastern Aleutians 0 0 –
2025-04-03 Winter StormAleutians West Census Area · forecast zone Eastern Aleutians 0 0 –
2025-01-24 Heavy SnowAleutians West Census Area · forecast zone Eastern Aleutians 0 0 –
2025-01-22 High WindAleutians West Census Area · forecast zone Eastern Aleutians 71 kt wind 0 0 –
2020-02-25 AvalancheAleutians West Census Area · forecast zone Eastern Aleutians 1 0 –
2015-12-12 High WindAleutians West Census Area · forecast zone Pribilof Islands 114 kt wind 0 0 $6.2M
2009-12-03 High WindAleutians West Census Area · forecast zone Eastern Aleutians 100 kt wind 0 0 $1.4M

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 Aleutians West Census Area, most deaths first
DateRecordCharacterKilledInjuredDamage
2020-02-25 AvalancheAleutians West Census Area · forecast zone Eastern Aleutians Anchorage Daily News reported the avalanche death of a snowmobiler on Unalaska Island. The avalanche was noticed around 5:30 p.m. and Search and Rescue was called since the victim was known to be in the area. 1 0 –
The costliest records in Aleutians West Census Area since 1993, damage in 2025 dollars
DateRecordCharacterKilledInjuredDamage
2004-10-22 FloodAleutians West Census Area · forecast zone Pribilof Islands 0 0 $7.8M
2015-12-12 High WindAleutians West Census Area · forecast zone Pribilof Islands 114 kt wind 0 0 $6.2M
2006-02-13 Debris FlowAleutians West Census Area · forecast zone Eastern Aleutians 0 0 $2.3M
2009-12-03 High WindAleutians West Census Area · forecast zone Eastern Aleutians 100 kt wind 0 0 $1.4M

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 Aleutians West Census Area'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).

Aleutians West Census Area: records per decade (the 2020s to June 30, 2026)
Hazard1950s1960s1970s1980s1990s2000s2010s2020-26
High wind and dust storms––––01947832
Winter storms––––0946823

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

What time of year?

Records by month in Aleutians West Census Area. The two busiest months are in violet.

The values, month by month

Jan 89 · Feb 97 · Mar 70 · Apr 40 · May 3 · Jun 0 · Jul 0 · Aug 4 · Sep 27 · Oct 36 · Nov 60 · Dec 75 (records).

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

Federal disaster declarations for Aleutians West Census Area

FEMA's register lists 6 declarations that include Aleutians West Census Area: 5 major disasters, one emergency and 0 fire management assistance declarations. Most were for severe storm (3) and biological (2).

Declarations including Aleutians West Census Area, newest first
DeclaredNumberTypeTitle
2025-10-22DR-4893FloodSevere Storms, Flooding, and Remnants of Typhoon Halong
2022-09-23DR-4672Severe StormSevere Storm, Flooding, and Landslides
2020-04-09DR-4533BiologicalCovid-19 Pandemic
2020-03-13EM-3446BiologicalCovid-19
2016-02-17DR-4257Severe StormSevere Storm
2004-11-15DR-1571Severe StormSevere Winter Storm, Tidal Surges and 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.

FEMA's modeled risk for Aleutians West Census Area

FEMA's National Risk Index rates Aleutians West Census Area Relatively Low overall, with an expected annual loss of $29.3 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 Aleutians West Census Area (December 2025 release), by FEMA's rating, then score
HazardRisk ratingExpected annual lossModeled frequency
Volcanic ActivityRelatively High$3.2Monce in about 6 years (modeled)
TsunamiRelatively Moderate$20Monce in about 3 years (modeled)
LandslideRelatively Moderate$47Konce in about 4 years (modeled)
AvalancheRelatively Moderate$457Konce in about 30 years (modeled)
EarthquakeRelatively Low$5.6Monce in about 2 years (modeled)
Winter WeatherVery Low$17K3 a year (modeled)
Ice StormVery Low$2Konce in about 67 years (modeled)
Cold WaveVery Low$395once in about 107 years (modeled)

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

Counties that share a border with Aleutians West Census Area

  1. Aleutians West Census Area 501
  2. Aleutians East Borough 191

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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