48
Recorded events
3
Direct deaths
2
Direct injuries
$1.3M
Property damage
Flash Flood in Emery County, Utah: 48 recorded events between 1997 and 2026. The strongest on record measured 0. That places the county #639 nationally and #8 statewide for this hazard.
Decade by decade
Flash Flood in Emery County, Utah: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for flash flood in Emery County is the 2010s, when 26 of the county's 48 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.
Within the Emery County archive, flash flood makes up 44.9% of all recorded severe weather across 8 hazard types. Nationally the county sits at #639 for this hazard and #8 within Utah, putting it in the 78.8 percentile of all U.S. counties.
Seasonality
Events by month
Aug is the peak month for flash flood in Emery County with 23 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.
Significant events
Deadliest on record
| Date | Location | Scale | Deaths | Injuries | Damage |
|---|---|---|---|---|---|
| May 11, 2020 | MOORE | 0 | 2 | 0 | $0 |
| Aug 2, 2021 | MOHRLAND | 0 | 1 | 1 | $1.0M |
| Sep 13, 2025 | GREEN RIVER | 0 | 0 | 1 | $0 |
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Apr 14, 2026 | MOORE | — | $0 |
| Apr 1, 2026 | MOORE | — | $0 |
| Sep 27, 2025 | MOORE | 0 | $0 |
| Sep 13, 2025 | GREEN RIVER | 0 | $0 |
| Aug 27, 2025 | GREEN RIVER | 0 | $0 |
| Aug 26, 2025 | CLEVELAND | 0 | $35K |
| Aug 17, 2024 | EMERY | 0 | $0 |
| Aug 10, 2024 | MOORE | 0 | $0 |
| Jun 28, 2024 | MOHRLAND | 0 | $5K |
| Jun 27, 2024 | EMERY | 0 | $1K |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
A significant flood wave carrying debris moved down Bear Creek Canyon, sweeping away mining vehicles at the Gentry Mountain Mine. Several miners were caught in the flood waters, with one miner able to save himself by clinging to a tree a quarter mile down the drainage. Another miner was not able to escape the flood waters and was found deceased 6 miles downstream. Another Mine car was flipped 8 times in the flood waters, but the miners were able to kick out the windows and escape. Significant infrastructure damage occurred at the Mine.
A large debris flow occurred off of the Seeley Fire burn scar, covering State Route 31 with trees, mud, and rocks, as much as 1-2 feet deep in some locations. The debris flow damaged State Route 31, and closed the entire canyon for several hours.
Heavy rain over the Seeley burn scar caused yet another debris flow in the area. The flooding originated from Pole and Engineer Canyons, and caused damage along State Route 31. Car-sized boulders were deposited on State Route 31 at the base of Pole Canyon.
Quick answers
Frequently asked
How many flash flood events are on record in Emery County, Utah?
48 flash flood events are recorded in Emery County between 1997 and 2026, causing 3 direct deaths.
What is the strongest flash flood recorded in Emery County?
The strongest flash flood on record in Emery County measured 0.
Where does the flash flood data for Emery County come from?
All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.
Cite this page
“Flash Flood in Emery County, Utah.” Severe Weather History. severeweatherhistory.com/county/utah/emery-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.