National Weather ServiceWyomingFlood WatchArchive to October 1, 2026
Flood Watches in Wyoming
The National Weather Service issued 3 flood watches for Wyoming in 2025 and 8 a year on average in 2008-2025; in 2021-2025 it had the 47th most of any state. 2026 through September: 14, 73% above the average of 8 for those months in 2008-2025. Bighorn Mountains Southeast was covered most often (23 times since 2008).
How many flood watches does Wyoming get?
Every flood watch that covered part of Wyoming. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 14 |
| 2025 | 3 |
| 2024 | 3 |
| 2023 | 24 |
| 2022 | 4 |
| 2021 | 1 |
| 2020 | 1 |
| 2019 | 8 |
| 2018 | 11 |
| 2017 | 6 |
| 2016 | 1 |
| 2015 | 4 |
| 2014 | 9 |
| 2013 | 2 |
| 2012 | 1 |
| 2011 | 31 |
| 2010 | 15 |
| 2009 | 9 |
| 2008 | 14 |
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 |
|---|---|---|---|
| Bighorn Mountains Southeast | 23 | 7 | September 18, 2026 |
| Northeast Johnson County | 22 | 6 | September 18, 2026 |
| Wyoming Black Hills | 21 | 1 | August 3, 2023 |
| Bighorn Mountains West | 21 | 6 | September 18, 2026 |
| Southeast Johnson County | 20 | 6 | September 18, 2026 |
| Sheridan | 20 | 3 | June 23, 2023 |
| Absaroka Mountains | 20 | 9 | September 18, 2026 |
| Northeastern Crook | 19 | 1 | August 3, 2023 |
| Jackson Hole | 17 | 3 | August 29, 2026 |
| East Laramie County | 17 | 13 | August 15, 2026 |
| Cody Foothills | 16 | 8 | September 18, 2026 |
| Central Laramie County | 16 | 12 | August 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 flood watch?
A flood watch means conditions may lead to flooding in the coming day or days; it is not yet happening. A watch means the conditions for the hazard are possible or favourable, but it is not yet happening: be ready to act if a warning follows. The national record · Every warning type in Wyoming.