Alaska Storm Data: Hail & Wind History Since 2010
Deduplicated storm activity for Alaska, fused from NWS warnings, storm reports, official records, and FEMA declarations.
Latest Alaska hail and wind storms
- Last reported hail in Alaska (0.75 in.+, screening): July 3, 2026 — 0.75 in. reported at East Farmers Loop Trans (Fairbanks North Star Borough), NWS Local Storm Report.
- 2026 so far in Alaska: 1 hail day and 208 wind days statewide (days with a storm report or station gust at the screening thresholds; warnings alone never count).
| Date | Largest reported hail | Strongest gust | City pages hit |
|---|---|---|---|
| October 25, 2026 | — | 52 mph measured | — |
| October 24, 2026 | — | 78 mph measured | — |
| October 23, 2026 | — | 76 mph measured | — |
| October 22, 2026 | — | 63 mph measured | — |
| October 21, 2026 | — | 51 mph measured | — |
| October 20, 2026 | — | 76 mph measured | Juneau |
| October 19, 2026 | — | 62 mph measured | — |
| October 18, 2026 | — | 55 mph measured | — |
| October 16, 2026 | — | 69 mph measured | — |
| October 15, 2026 | — | 78 mph measured | — |
Cities hit this week
City pages with a storm report or station gust at the screening thresholds (hail 0.75 in.+, wind 45 mph+) within 25 miles in the last 7 days, freshest first.
- Juneau hail & wind — Oct 20, 2026 · 63 mph gust measured
Alaska storm facts
- StormAuditor's analysis of NOAA and National Weather Service records found 2,127 deduplicated storm events (wind, hail, tornado, and flood; NWS warning products included) in Alaska in the 12 months ending October 25, 2026.
- Storm activity touched 29 of 30 Alaska boroughs & census areas over that period.
- The most impacted area in Alaska was Aleutians West, with 313 events.
- The busiest day by event count in Alaska was October 23, 2026, with 74 events.
Alaska storm activity at a glance (last 12 months)
StormAuditor's consolidated public record currently shows 2,127 storm events impacting 29 of Alaska's 30 boroughs & census areas in the trailing 12 months: 2,035 wind events, 11 hail events, 81 flood events. Every count includes NWS warnings as well as observed reports, so tornado events mean tornado warnings and reports, not confirmed tornadoes.
Events are fused from National Weather Service warnings and Special Weather Statements, observed Local Storm Reports, official NCEI storm records, and FEMA disaster declarations, then consolidated into a single event table under the published methodology.
Wind covers thunderstorm and non-thunderstorm wind alike, so these counts measure something different from the NCEI entry counts in the history section below; the two are not comparable year to year. State totals also count NWS Special Weather Statements (radar-indicated hail or gusts below warning level); city pages leave those out.
Busiest days in Alaska by event count
Ranked by the number of 12-month events, NWS warnings included, so a day with many warnings can outrank a day with larger hail.
- October 23, 2026 — 74 events incl. warnings (flood, wind)
- December 14, 2025 — 40 events incl. warnings (wind)
- December 6, 2025 — 39 events incl. warnings (wind)
- December 13, 2025 — 32 events incl. warnings (wind)
- January 5, 2026 — 31 events incl. warnings (wind)
Most impacted boroughs & census areas
Events of every type for each county — wind, hail, tornado and flood, NWS warnings and Special Weather Statements included. City pages count wind and hail events only, so a county number on a city page is never higher than the number here.
- Aleutians West — 313 events
- Bethel — 291 events
- Aleutians East — 219 events
- Nome — 168 events
- North Slope — 124 events
- Lake and Peninsula — 118 events
- Kenai Peninsula — 112 events
- Matanuska-Susitna — 80 events
Additional activity recorded under other NWS area names (forecast zones, tribal lands, and former census areas): Valdez-Cordova (former census area) (70) · Southeast Fairbanks (38) · Annette Island (18) · Wade Hampton (17).
How these numbers are counted
The storm numbers on this page are counted in four different ways. Each answers a different question with its own size cutoffs, area and time span, so compare numbers within one group, not across groups.
- Storm days (latest hail and wind): A day in the last 12 months when at least one report anywhere in Alaska showed hail 0.75 in. or larger or wind of 45 mph or more (StormAuditor screening thresholds). Reports are NWS storm reports from spotters, the public and officials, plus weather-station gusts, which count from 50 mph. A warning on its own never makes a storm day. The "City pages hit" column and each city's last reported hail apply the same rule within 25 miles of the city. The statewide columns count reports inside Alaska only. City pages count reports within 25 miles of each city, which can reach into a neighboring state; those values name the other state, so a border city's value for a day can be higher than the Alaska value.
- Storm-date pages (NWS severe): A storm-date page is published only when at least one report or station gust within 25 miles of a city met the National Weather Service severe criteria (hail 1.00 in. or larger, or wind 58 mph or more), at least two separate observations were logged, and the day ranks among the most significant. A storm report that relays an airport weather station's reading (the same station, the same gust and the same time) counts once, as the station reading. Not every storm day gets a page; when one does, the page and the storm-day table show the same largest hail and strongest gust.
- Events (12-month counts): Events count the Alaska storm log: NWS warnings and Special Weather Statements (a lower-level NWS alert), storm reports (wind 50 mph+, hail 0.75 in.+), station gusts, NCEI entries and FEMA disaster declarations, for each county affected, floods included. One event is one place on one day, counted separately for each type (wind, hail, tornado, flood). A weather station or storm-report point counts once a day, at that day's highest reading, however many readings it filed; a place with hail and wind on the same day is two events. NWS warnings and Special Weather Statements count once per county per day, and NCEI entries and FEMA declarations once per place per day. A storm report that relays an airport weather station's reading (the same station, the same gust and the same time) counts once, as the station reading. The same report arriving through another feed (SPC or NCEI) is one record. The most impacted counties list uses this count. City pages count only wind and hail within 25 miles and leave out floods and Special Weather Statements, so city counts do not add up to the state total, and a city page's county count is a wind-and-hail count that is never higher than the same county's number here.
- NOAA history (since 2010): The official NOAA storm record (NCEI Storm Events) in Alaska from January 1, 2010 to the day before the 12-month window starts: hail 0.50 in.+, thunderstorm wind 40 mph+ and tornadoes. It is a separate, older record with its own "storm days" (days with any entry), so its counts are not compared with the 12-month numbers.
Full method: Methodology and Data Sources.
Alaska hail and wind history in NOAA NCEI records, 2010–Oct. 2025
This section covers January 1, 2010 through October 24, 2025. Storms from October 25, 2025 on are in the 12-month summary above, so no date is counted in both.
The National Centers for Environmental Information logged 18 storm days in Alaska in this period — 22 NCEI Storm Events entries in all. Thunderstorm wind outnumbers hail here: 11 wind reports against 10 hail reports.
June is the peak month for both hazards, with 70% of all hail reports.
The largest hail in these records for Alaska was 1.00 in. (quarter size), reported in 4 different years — most recently on July 7, 2025 in the Upper Tanana Valley forecast zone. The strongest measured thunderstorm gust was 72 mph on June 16, 2025 in the Juneau forecast zone. NCEI also lists 1 tornado entry in Alaska — one entry per area a tornado crossed.
- Average: 1.0 storm days a year (2010–2024)
- Most hail reports in one year: 4 in 2010
- Hail of 1 in. or larger reported in 3 of 15 full years (2010–2024)
| Year | Hail reports | Thunderstorm wind reports | Tornado entries | Storm days | Largest hail | Strongest measured gust |
|---|---|---|---|---|---|---|
| 2010 | 4 | 1 | 0 | 5 | 0.75 in. | 58 mph |
| 2011 | 0 | 1 | 0 | 1 | — | 49 mph |
| 2012 | 0 | 0 | 0 | 0 | — | — |
| 2013 | 0 | 0 | 0 | 0 | — | — |
| 2014 | 0 | 0 | 0 | 0 | — | — |
| 2015 | 1 | 0 | 0 | 1 | 1.00 in. | — |
| 2016 | 0 | 0 | 0 | 0 | — | — |
| 2017 | 0 | 0 | 0 | 0 | — | — |
| 2018 | 2 | 0 | 0 | 2 | 1.00 in. | — |
| 2019 | 0 | 2 | 0 | 1 | — | — |
| 2020 | 0 | 0 | 0 | 0 | — | — |
| 2021 | 0 | 0 | 0 | 0 | — | — |
| 2022 | 0 | 0 | 0 | 0 | — | — |
| 2023 | 0 | 4 | 0 | 2 | — | — |
| 2024 | 1 | 1 | 1 | 3 | 1.00 in. | — |
| 2025 through Oct. 24 | 2 | 2 | 0 | 3 | 1.00 in. | 72 mph |
Forecast zones with the most NCEI storm reports, 2010–Oct. 2025
| Area | All entries | Hail | Thunderstorm wind |
|---|---|---|---|
| Middle Tanana Valley forecast zone | 6 | 3 | 3 |
| Western Tanana Valley Western Yukon Valley forecast zone | 2 | 1 | 1 |
| Yukon Flats Nearby Uplands forecast zone | 2 | 0 | 2 |
| Upper Tanana Valley forecast zone | 1 | 1 | 0 |
| Juneau forecast zone | 1 | 0 | 1 |
| Upper Tanana Valley Fortymile forecast zone | 1 | 1 | 0 |
| Fairbanks Metro Area forecast zone | 1 | 1 | 0 |
| Matanuska Valley forecast zone | 1 | 1 | 0 |
| Taiya Inlet forecast zone | 1 | 0 | 1 |
| Kuskokwim Delta forecast zone | 1 | 1 | 0 |
Download this history: CSV · JSON at https://www.stormauditor.com/downloads/storm-history/ak.json (free, open license, cite StormAuditor).
Source: NOAA NCEI Storm Events Database (thunderstorm wind, hail, and tornado entries; hail 0.50 in. or larger, wind 40 mph or more; wind converted from knots).
Alaska storm history questions, 2010–Oct. 2025
How big did hail get in Alaska, 2010–Oct. 2025?
1.00 in., quarter size, reported in 4 different years; most recently on July 7, 2025 in the Upper Tanana Valley forecast zone, per NCEI.
Which year had the most storm days in Alaska, 2010–Oct. 2025?
2010, with 5 storm days (4 hail reports, 1 thunderstorm wind report). The 15-year average is 1.0 storm days.
How many hail reports does Alaska see in a typical year?
About 0.5 hail reports a year (2010–2024 average), with 1-inch or larger hail in 3 of 15 years. Thunderstorm wind averages 0.6 reports a year.
What is the strongest measured thunderstorm gust in Alaska, 2010–Oct. 2025?
72 mph, measured on June 16, 2025 in the Juneau forecast zone. Only gusts NCEI lists as measured count here; gusts measured on a date and area with a tornado entry, and entries of 120 knots or more (known entry errors), are left out.
Storm professionals: restoration and exterior contractors, public adjusters, and crews and teams on one Organization plan work from this same public record — see StormAuditor for professionals.
Sources: NWS alerts (api.weather.gov) · NWS Local Storm Reports via the Iowa Environmental Mesonet · ASOS/AWOS station gusts via the Iowa Environmental Mesonet · NOAA NCEI Storm Events Database · every StormAuditor data source.
Download the Alaska dataset (free)
The full consolidated Alaska event list for the trailing 12 months — dates, counties, hazard types, severities, measured gusts and hail sizes, with coordinates; source records deduplicated, and each NWS warning product listed per affected county — downloads free and stays current with the live record: download CSV · JSON at https://www.stormauditor.com/downloads/storm-data/ak.json. Free to reuse under the data license; the JSON file carries a field dictionary and provenance notes.
Research a specific Alaska address
For Alaska, research storms with the warnings, storm reports, and station measurements above, the NOAA history on this page, the free Address Lookup for warnings and reports near an address, and the Storm Calendar (Pro plans and higher).
All values are derived from public NOAA and NWS data under StormAuditor's published methodology (see Limitations). Data last refreshed October 25, 2026.
County-level activity is on the Impact Heatmap (free with an account).
Alaska cities A–Z: last reported hail
- Anchorage hail & wind history — no 0.75 in.+ hail reported within 25 miles in 12 months
- Fairbanks hail & wind history — last hail July 3, 2026 (0.75 in. reported)
- Juneau hail & wind history — last hail November 20, 2025 (1.00 in. reported)
Related state page: Washington storm data
Guides for reading this data
Storm-day records in Alaska
The newest storm-date pages for Alaska cities: a report or station gust within 25 miles of the city met NWS severe criteria (hail 1.00 in.+ or wind 58 mph+), with at least two separate observations. Each page lists the reports, station gusts and a free way to check one address:
Cite or link to this data — free
Free to quote, summarize, reuse, and link — for bloggers, journalists, researchers, contractors, and AI writing tools. No permission or credit required. A ready-made citation and link are below if they help. Terms: StormAuditor data & content license.
Citation: StormAuditor. "Alaska Storm Data: Hail & Wind History Since 2010." Updated October 25, 2026. https://www.stormauditor.com/storm-data/ak
HTML link: <a href="https://www.stormauditor.com/storm-data/ak">Alaska Storm Data: Hail & Wind History Since 2010 — StormAuditor</a>
About this page: built by Storm Auditor LLC from public NOAA/NWS records — deduplicated warnings, storm reports, station measurements, and official records on a rolling 12-month window, under the published methodology. See the StormAuditor Editorial Team for how content is produced.
Read more: Recent Storms in Alaska: Wind, Hail and Top Gusts
Read more: Severe Weather Trends and Research in Alaska