National Weather ServiceWyomingWinter Weather AdvisoryArchive to October 1, 2026
Winter Weather Advisories in Wyoming
The National Weather Service issued 124 winter weather advisories for Wyoming in 2025 and 123 a year on average in 2008-2025; in 2021-2025 it had the 3rd most of any state. 2026 through September: 58, 27% below the average of 80 for those months in 2008-2025. Teton and Gros Ventre Mountains was covered most often (338 times since 2008).
How many winter weather advisories does Wyoming get?
Every winter weather advisory that covered part of Wyoming. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 58 |
| 2025 | 124 |
| 2024 | 128 |
| 2023 | 122 |
| 2022 | 131 |
| 2021 | 132 |
| 2020 | 115 |
| 2019 | 142 |
| 2018 | 140 |
| 2017 | 143 |
| 2016 | 126 |
| 2015 | 98 |
| 2014 | 131 |
| 2013 | 131 |
| 2012 | 95 |
| 2011 | 139 |
| 2010 | 134 |
| 2009 | 134 |
| 2008 | 56 |
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 Wyoming 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 Wyoming?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Teton and Gros Ventre Mountains | 338 | 65 | April 22, 2026 |
| Snowy Range | 326 | 66 | April 27, 2026 |
| Sierra Madre Range | 294 | 59 | May 18, 2026 |
| Yellowstone National Park | 289 | 47 | April 22, 2026 |
| North Snowy Range Foothills | 268 | 55 | May 18, 2026 |
| Sheridan Foothills | 265 | 55 | April 26, 2026 |
| Wind River Mountains West | 253 | 47 | May 18, 2026 |
| Wyoming Black Hills | 251 | 39 | April 3, 2026 |
| Salt River and Wyoming Ranges | 248 | 48 | April 22, 2026 |
| South Laramie Range | 243 | 45 | April 27, 2026 |
| Wind River Mountains East | 242 | 31 | May 5, 2026 |
| Absaroka Mountains | 239 | 38 | May 18, 2026 |
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.
What is a winter weather advisory?
A winter weather advisory covers snow, sleet or freezing rain that will be a nuisance and can make roads slippery, below warning amounts. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in Wyoming.