National Weather ServiceUtahFlash Flood WarningArchive to October 1, 2026
Flash Flood Warnings in Utah
The National Weather Service issued 58 flash flood warnings for Utah in 2025 and 73 a year on average in 2008-2025; in 2021-2025 it had the 20th most of any state. 2026 through September: 182, 160% above the average of 70 for those months in 2008-2025. Kane was covered most often (483 times since 2008).
How many flash flood warnings does Utah get?
Every flash flood warning that covered part of Utah. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 182 |
| 2025 | 58 |
| 2024 | 96 |
| 2023 | 80 |
| 2022 | 140 |
| 2021 | 157 |
| 2020 | 23 |
| 2019 | 18 |
| 2018 | 74 |
| 2017 | 55 |
| 2016 | 34 |
| 2015 | 81 |
| 2014 | 60 |
| 2013 | 146 |
| 2012 | 73 |
| 2011 | 75 |
| 2010 | 82 |
| 2009 | 12 |
| 2008 | 42 |
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 Utah 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 Utah?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Kane | 483 | 122 | September 29, 2026 |
| Washington | 345 | 83 | September 29, 2026 |
| Garfield | 308 | 74 | September 16, 2026 |
| Wayne | 224 | 55 | September 16, 2026 |
| San Juan | 188 | 74 | September 16, 2026 |
| Emery | 117 | 33 | September 29, 2026 |
| Grand | 95 | 39 | September 16, 2026 |
| Iron | 74 | 21 | August 28, 2026 |
| Carbon | 46 | 5 | September 30, 2025 |
| Utah | 25 | 1 | August 12, 2024 |
| Piute | 24 | 19 | September 29, 2026 |
| Duchesne | 22 | 6 | September 18, 2023 |
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.
The latest flash flood warnings for Utah in AreaZine's record
NWS Salt Lake CityWarningSeptember 29, 2026
Flash Flood Warning: Emery, UT
Expired 4:30 a.m. MDT, September 29, 2026
NWS Salt Lake CityWarningSeptember 28, 2026
Flash Flood Warning: Washington County, UT
Expired 1:45 a.m. MDT, September 29, 2026
NWS Salt Lake CityWarningSeptember 28, 2026
Flash Flood Warning: Piute, UT
Expired 1:45 a.m. MDT, September 29, 2026
NWS Salt Lake CityWarningSeptember 28, 2026
Flash Flood Warning: Kane, UT
Expired 4:00 a.m. MDT, September 29, 2026
NWS Salt Lake CityWarningSeptember 28, 2026
Flash Flood Warning: Kane, UT
Expired 3:15 a.m. MDT, September 29, 2026
NWS Salt Lake CityWarningSeptember 28, 2026
Flash Flood Warning: Washington County, UT
Expired 8:45 p.m. MDT, September 28, 2026
NWS Salt Lake CityWarningSeptember 28, 2026
Flash Flood Warning: Kane and Washington County, UT
Expired 9:00 p.m. MDT, September 28, 2026
NWS Grand JunctionWarningSeptember 18, 2026
Flash Flood Warning: Moffat, Rio Blanco and Uintah, CO and UT
Expired 7:45 p.m. MDT, September 18, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a flash flood warning?
A flash flood warning means flash flooding is happening or about to happen: water rising fast in streams, streets or dry washes, usually within six hours of heavy rain or a dam or levee failure. 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 Utah.