National Weather ServiceAlaskaFlood WarningArchive to October 1, 2026
Flood Warnings in Alaska
The National Weather Service issued 16 flood warnings for Alaska in 2025 and 16 a year on average in 2008-2025; in 2021-2025 it had the 43rd most of any state. 2026 through September: 25, 63% above the average of 15 for those months in 2008-2025. Upper Tanana Valley and the Fortymile Country was covered most often (28 times since 2008).
How many flood warnings does Alaska get?
Every flood warning that covered part of Alaska. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 25 |
| 2025 | 16 |
| 2024 | 15 |
| 2023 | 29 |
| 2022 | 20 |
| 2021 | 10 |
| 2020 | 20 |
| 2019 | 9 |
| 2018 | 8 |
| 2017 | 8 |
| 2016 | 7 |
| 2015 | 5 |
| 2014 | 25 |
| 2013 | 24 |
| 2012 | 22 |
| 2011 | 10 |
| 2010 | 8 |
| 2009 | 47 |
| 2008 | 12 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Alaska get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Alaska?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Upper Tanana Valley and the Fortymile Country | 28 | 2 | May 13, 2023 |
| Middle Tanana Valley | 27 | 0 | June 25, 2020 |
| Taiya Inlet and Klondike Highway | 25 | 0 | August 17, 2022 |
| Juneau Borough and Northern Admiralty Island | 24 | 0 | August 30, 2022 |
| Deltana and Tanana Flats | 18 | 0 | June 23, 2020 |
| Yukon Flats and Surrounding Uplands | 16 | 6 | May 31, 2023 |
| Kuskokwim Delta | 16 | 7 | August 17, 2024 |
| Western Prince William Sound | 15 | 2 | August 7, 2024 |
| Lower Kuskokwim Valley | 14 | 4 | May 16, 2023 |
| Susitna Valley | 13 | 2 | August 8, 2024 |
| City and Borough of Juneau | 12 | 9 | August 12, 2026 |
| Western Kenai Peninsula | 11 | 3 | January 25, 2025 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
The latest flood warnings for Alaska in AreaZine's record
NWS AnchorageWarningAugust 4, 2026
Flood Warning: Central Susitna Valley, AK
Expired 5:00 p.m. AKDT, August 5, 2026
NWS AnchorageWarningAugust 4, 2026
Flood Warning: Western Susitna Valley, AK
Expired 1:00 p.m. AKDT, August 7, 2026
NWS AnchorageWarningJuly 19, 2026
Flood Warning: Southern Kenai Mtns, AK
Expired 10:00 a.m. AKDT, July 21, 2026
NWS FairbanksWarningJune 15, 2026
Flood Warning: South Slopes Of The Central Brooks Range, AK
Expired 10:00 p.m. AKDT, June 16, 2026
NWS FairbanksWarningMay 25, 2026
Flood Warning: Yukon Delta Coast, AK
Expired 1:00 a.m. AKDT, May 27, 2026
NWS FairbanksWarningMay 24, 2026
Flood Warning: Yukon Delta Coast, AK
Expired 1:00 a.m. AKDT, May 26, 2026
NWS FairbanksWarningMay 22, 2026
Flood Warning: Lower Yukon River, AK
Expired 1:00 a.m. AKDT, May 24, 2026
NWS FairbanksWarningMay 22, 2026
Flood Warning: Lower Yukon River, AK
Expired 1:00 a.m. AKDT, May 24, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a flood warning?
A flood warning means flooding is happening or about to happen. The NWS issues it both for rivers at forecast points (river flood warnings) and for areas where water ponds or runs off (areal flood warnings); AreaZine counts both. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Alaska.