National Weather ServiceColoradoFlood AdvisoryArchive to October 1, 2026
Flood Advisories in Colorado
The National Weather Service issued 161 flood advisories for Colorado in 2025 and 235 a year on average in 2008-2025; in 2021-2025 it had the 16th most of any state. 2026 through September: 279, 20% above the average of 233 for those months in 2008-2025. El Paso was covered most often (364 times since 2008).
How many flood advisories does Colorado get?
Every flood advisory that covered part of Colorado. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 279 |
| 2025 | 161 |
| 2024 | 164 |
| 2023 | 269 |
| 2022 | 238 |
| 2021 | 290 |
| 2020 | 54 |
| 2019 | 231 |
| 2018 | 136 |
| 2017 | 263 |
| 2016 | 181 |
| 2015 | 304 |
| 2014 | 438 |
| 2013 | 410 |
| 2012 | 158 |
| 2011 | 294 |
| 2010 | 268 |
| 2009 | 183 |
| 2008 | 188 |
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 Colorado 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 Colorado?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| El Paso | 364 | 0 | July 27, 2022 |
| Larimer | 360 | 88 | September 7, 2026 |
| Mesa | 338 | 65 | September 19, 2026 |
| Weld | 290 | 87 | September 6, 2026 |
| Arapahoe | 237 | 68 | September 25, 2026 |
| Adams | 229 | 62 | September 25, 2026 |
| Garfield | 219 | 46 | September 17, 2026 |
| Douglas | 218 | 57 | September 25, 2026 |
| Washington | 205 | 54 | August 27, 2026 |
| Pueblo | 203 | 3 | August 17, 2026 |
| Elbert | 196 | 75 | September 21, 2026 |
| Jefferson | 187 | 45 | September 25, 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 advisory?
A flood advisory covers flooding that is less serious than a warning, such as water on roads or in low-lying areas, that is still a hazard to drivers and walkers. 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 Colorado.