National Weather ServiceWashingtonWinter Weather AdvisoryArchive to October 1, 2026
Winter Weather Advisories in Washington
The National Weather Service issued 103 winter weather advisories for Washington in 2025 and 116 a year on average in 2008-2025; in 2021-2025 it had the 6th most of any state. 2026 through September: 51, 26% below the average of 69 for those months in 2008-2025. South Washington Cascades was covered most often (376 times since 2008).
How many winter weather advisories does Washington get?
Every winter weather advisory that covered part of Washington. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 51 |
| 2025 | 103 |
| 2024 | 116 |
| 2023 | 110 |
| 2022 | 148 |
| 2021 | 141 |
| 2020 | 130 |
| 2019 | 114 |
| 2018 | 122 |
| 2017 | 151 |
| 2016 | 123 |
| 2015 | 85 |
| 2014 | 106 |
| 2013 | 87 |
| 2012 | 148 |
| 2011 | 123 |
| 2010 | 111 |
| 2009 | 117 |
| 2008 | 51 |
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 Washington 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 Washington?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| South Washington Cascades | 376 | 64 | May 16, 2026 |
| West Slopes South Central Cascades and Passes | 221 | 35 | March 12, 2025 |
| West Slopes North Central Cascades and Passes | 213 | 32 | March 12, 2025 |
| Spokane Area | 212 | 43 | March 12, 2026 |
| Northwest Blue Mountains | 208 | 52 | April 22, 2026 |
| Okanogan Highlands | 208 | 39 | April 14, 2026 |
| Northeast Mountains | 191 | 36 | February 19, 2026 |
| Washington Palouse | 191 | 36 | March 12, 2026 |
| West Slopes North Cascades and Passes | 191 | 23 | March 12, 2025 |
| East Slopes of the Washington Cascades | 187 | 8 | March 2, 2023 |
| East Slopes Northern Cascades | 182 | 0 | April 10, 2021 |
| Olympics | 164 | 18 | May 15, 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 Washington.