Flood in Utah
Every flood event the National Weather Service has filed in Utah, year by year, with the most significant episodes. Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
The most significant on the map
The most significant flood episodes in Utah.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 185
- Deaths
- 6
- Injuries
- 16
- Damage
- $348 million
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Avalanche and Flooding in Utah, January 7 to 12, 2005A stalled storm system just off the southern California coast was able to tap abundant tropical moisture from the central Equatorial Pacific Ocean and dump copious amounts of rain and wet snow on many portions of Utah.
- Flash Flooding and Debris Flow in Utah, March 13 to 16, 2023Another winter storm brought gusty winds and accumulating snow to much of Utah in the middle of March. Precipitation combined with snowmelt also resulted in flooding, mostly in southern Utah, including noted fatalities in a popular slot canyon.
- Winter Storm and Avalanche in Utah, February 5 to 10, 2014A series of moist weather disturbances moved across Utah during the second week of February, bringing an extended period of snowfall to northern Utah. In addition to the new snow, two avalanche fatalities occurred during this period of time.
- Flash Flooding and Flooding in Utah, August 1 to 2, 2021An active monsoon surge brought thunderstorms producing heavy rain, damaging wind gusts, and hail across the state.
- Flood in Utah, March 11 to 15, 2023Moving into the middle portion of March, the combination of ongoing snowmelt along with an atmospheric river resulted in flooding through the popular Buckskin Gulch trail. This flood resulted in numerous rescues, as well as fatalities.
- Flash Flooding and Flood in Utah, July 18 to 22, 2021An active monsoon surge brought several back-to-back days of thunderstorms producing heavy rain, damaging wind gusts, and hail across the state.
- Tornadoes and Flash Flooding in Utah, September 21 to 22, 2016A strong and moist Pacific storm brought widespread precipitation and severe weather to Utah. Two tornadoes were reported on September 22, and other significant impacts included strong gusty winds, large hail, and widespread flash flooding.
- Flash Flooding and Flood in Utah, August 22 to 25, 2024There were gusty winds for different parts of Utah and flash flooding in southern Utah.
- Flash Flooding and Flooding in Utah, August 1 to 4, 2023A deep monsoonal event impacted Utah at the beginning of August. Each of these days across northern Utah, widespread thunderstorms and flooding impacted the region. Very heavy rainfall impacted West Valley City, Honeyville, and Draper in particular.
- Winter Storm and Flooding in Utah, December 18 to 23, 2010A large and very moist Pacific storm system brought widespread heavy precipitation to Utah over a five day period.
- Tornado and Flash Flooding in Utah, September 1 to 2, 2021Several rounds of thunderstorms brought severe weather hazards to the state of Utah, including flash flooding in southern and eastern Utah, and damaging winds, hail, and a tornado in Northern Utah.
- Flood in Utah, May 1 to 2, 2023Spring runoff from the prior winter's record snowpack resulted in elevated flows through area rivers, and in early May, resulted in a fatality as an adult woman fell into the Weber River.
- Tornadoes and Flash Flooding in Utah, July 12 to 16, 2021An active monsoon surge brought several back-to-back days of thunderstorms producing heavy rain, damaging wind gusts, and hail across the state.
- Flash Flooding and Flooding in Utah, August 17 to 19, 2021An active monsoon surge brought thunderstorms producing heavy rain, damaging wind gusts, and hail across the state.
- Flooding in Utah, February 7 to 27, 2017Heavy rainfall and significant snowmelt through the month of February combined to produce flooding in multiple locations across far northern Utah.
- Flooding in Utah, June 5 to 10, 2010Abnormally warm temperatures in early June, combined with a deep late season snowpack, led to excessive snowmelt across northern Utah. This caused flooding on both Little Cottonwood Creek and the Weber River near Oakley.
- Flash Flooding and Flood in Utah, September 14 to 15, 2017Widespread thunderstorms developed over Utah on September 14, resulting in widespread flash flooding across southern Utah with some strong winds. Strong winds over Lake Powell resulted in three injuries to boaters.
- Flash Flooding and Flood in Utah, August 1, 2007Heavy downpours from a tropical airmass resulted in washing out of streets and a few bridges in Washington County. A few roof evacuations were prompted by fast rising water in the town of Virgin.
- Flash Flooding and Debris Flow in Utah, September 10 to 14, 2013A Pacific storm system, combined with deep subtropical moisture, produced widespread heavy precipitation across Utah. This led to flooding across many parts of the state, with significant damages reported in several locations.
- Debris Flow and Avalanche in Utah, April 10 to 13, 2023Snowmelt brought enhanced flows, with avalanches, flooding and debris flows.
- Flooding and Damaging Winds in Utah, October 3 to 4, 2025Heavy rain over a several day period caused flash flooding for much of the Tooele Valley. Rainfall totals through the event ranged from 2-4 inches.
- Flash Flooding and Flood in Utah, July 29 to 31, 2021An active monsoon surge brought several back-to-back days of thunderstorms producing heavy rain, damaging wind gusts, and hail across the state.
- Flash Flooding and Flooding in Utah, August 12 to 13, 2024Monsoonal showers and thunderstorms brought flash flooding and gusty winds to Utah.
- Flood in Utah, May 16, 1996A line of "dying" thunderstorms moved through northern Utah in the evening. Rainfall amounts ranged from 0.35-0.55" in 20 minutes time. Minor street flooding was reported by both weather spotters and the Utah Highway Patrol dispatch in the Brigham City area.
- Flooding in Utah, May 22 to 31, 2011Warm temperatures and fast snowmelt caused widespread river flooding across Utah through the end of May. Major rivers impacted included the Sevier River, the South Fork of the Ogden River, and much of the Weber River system. Note that this episode continued into June.
More
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.