National Weather ServiceWyomingFlood WarningArchive to October 1, 2026
Flood Warnings in Wyoming
The National Weather Service issued 0 flood warnings for Wyoming in 2025 and 17 a year on average in 2008-2025; in 2021-2025 it had the 51st most of any state. 2026 through September: 0, 100% below the average of 17 for those months in 2008-2025. Fremont was covered most often (65 times since 2008).
How many flood warnings does Wyoming get?
Every flood warning that covered part of Wyoming. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 0 |
| 2025 | 0 |
| 2024 | 2 |
| 2023 | 13 |
| 2022 | 8 |
| 2021 | 1 |
| 2020 | 4 |
| 2019 | 20 |
| 2018 | 15 |
| 2017 | 36 |
| 2016 | 21 |
| 2015 | 35 |
| 2014 | 23 |
| 2013 | 2 |
| 2012 | 2 |
| 2011 | 55 |
| 2010 | 38 |
| 2009 | 7 |
| 2008 | 24 |
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 |
|---|---|---|---|
| Fremont | 65 | 2 | June 21, 2023 |
| Carbon | 59 | 5 | June 8, 2024 |
| Johnson | 27 | 0 | May 28, 2019 |
| Big Horn | 27 | 0 | June 6, 2021 |
| Sheridan | 23 | 1 | June 11, 2023 |
| Lincoln | 18 | 4 | May 24, 2023 |
| Platte | 17 | 1 | August 25, 2023 |
| Albany | 17 | 2 | June 6, 2024 |
| Goshen | 14 | 0 | July 1, 2022 |
| Crook | 14 | 0 | March 9, 2020 |
| Park | 13 | 0 | June 13, 2022 |
| Washakie | 10 | 0 | May 29, 2019 |
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 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 Wyoming.