Debris Flow in Nevada
Every debris flow event the National Weather Service has filed in Nevada, year by year, with the most significant episodes. A fast-moving slurry of mud, rock and debris, usually on a slope soaked by heavy rain or stripped by a fire.
The most significant on the map
The most significant debris flow episodes in Nevada.
- 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
- 44
- Deaths
- 0
- Injuries
- 0
- Damage
- $154,000
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Flash Flooding and Debris Flow in Nevada, July 27, 2025During the late afternoon and evening of the 27th, intense thunderstorms produced significant rainfall and hail throughout the greater Reno metro area. This lead to several reports of flooded buildings as well as road closures due to flooding.
- Debris Flow and Flood in Nevada, August 20 to 22, 2023The remnants of Tropical Storm Hilary caused gusty winds, record rainfall, and flooding across sections of central and northern Nevada.
- Flash Flooding and Debris Flow in Nevada, July 19 to 21, 2014Moderately high atmospheric moisture with slow-moving thunderstorms brought heavy rain and isolated severe thunderstorms from the 19th through the 21st. Extensive damage from flash floods and debris flows was reported in Douglas County and Carson City on the 20th.
- Debris Flows and Hail in Nevada, September 1 to 4, 2023An upper level low over northern California yielded a cooler, wetter, and breezy pattern across the region through Labor Day weekend.
- Debris Flow and Flooding in Nevada, June 4 to 8, 2010Rapid snow melt caused flooding of Lamoille Creek and a mudslide in Lamoille Canyon. Multiple residential properties and a few businesses were flooded in the town of Lamoille . Water flowed over|Lamoille highway for a brief time.
- Debris Flow and Flooding in Nevada, April 6 to 7, 2018A very warm and wet atmospheric river approached the west coast of the CONUS on the 5th, which brought gusty winds and significant rains to the Sierra and western Nevada the 6th through the 7th.
- Debris Flows and Avalanche in Nevada, March 9 to 12, 2023Strong, even damaging west-southwest winds increased travel hazards especially to high profile trucks but also increased the danger for destructive avalanches across the region. Snow started at all elevations Thursday evening with snow levels rapidly rising Friday morning.
- Debris Flow and Dust Storm in Nevada, July 30, 2025An upper level wave moving through N CA/NV provided plentiful forcing for storms to develop on July 30. In fact, showers lingered overnight the night before across portions of the Sierra and NE CA.
- Flash Flooding and Debris Flow in Nevada, September 12, 2022Isolated strong thunderstorms with concentrated heavy precipitation cores that initiated along the eastern Sierra caused periods of flash flooding and debris flows in and around the Holbrook Junction area that also closed Nevada SR167 (Highland Way) to the Cal-Neva state line as…
- Flash Flood and Debris Flows in Nevada, July 20 to 22, 2018Daytime heating and ample moisture along the periphery of a ridge caused scattered convection over western Nevada and the eastern Sierra July 19th through the 25th. Several storms produced heavy rainfall which led to flash flooding and debris flows.
- Flash Flood and Debris Flow in Nevada, August 3 to 5, 2022A deep layer of monsoonal moisture pushed northwest and north into California, Sierra, and western Nevada in a southerly upper flow that marked the western margins of an area of strong high-pressure ridging into the Great Basin region.
- Flash Flooding and Debris Flow in Nevada, August 12 to 13, 2014Abundant monsoon moisture generated thunderstorms that produced flash flooding, large hail, and strong winds across portions of central and northeast Nevada.
- Debris Flow and Heavy Snow in Nevada, January 9 to 11, 2023A stronger winter storm produced several waves of new snow and high winds that impacted the region during the third week of January.
- Flash Flood and Debris Flows in Nevada, June 10 to 11, 2023An upper low that settled over southern NV/UT encouraged the return of greater thunderstorm coverage during this period with near severe storms bringing heavy rain and flash flood concerns to the region.
- Debris Flow and Heavy Rain in Nevada, October 13 to 14, 2009Remnants of a typhoon enhanced very moist flow off the Pacific Ocean and brought strong winds and unusually heavy to record-setting rainfall to the region.
- Flash Flood and Debris Flows in Nevada, August 5 to 6, 2022Multiple locations reported a combination of brief heavy rain, flooding, or debris flows.
- Flash Flood and Debris Flows in Nevada, August 25, 2025A four corners high pressure continued to allow for a high amount of atmospheric moisture to move north into the region as it interacted with a short-wave trough.
- Debris Flow and Heavy Rain in Nevada, May 21, 2018A closed upper low moved south over southern Nevada and persisted in that area through much of the 22nd, which caused showers and thunderstorms to become widespread across western Nevada and the eastern Sierra.
- Debris Flow and Damaging Winds in Nevada, June 24, 2020Heavy rain, thunderstorm gusts, and a debris flow resulted from a strong cold front.
- Flash Flooding and Debris Flow in Nevada, August 10 to 11, 2022Multiple areas reported flooding over roadways, along with some material that traveled with it between the afternoon of the 10th and the morning of the 11th, due to heavy rains in multiple areas.
- Debris Flow and Damaging Winds in Nevada, August 9 to 10, 2022Heavy rain across the areas caused localized flooding and a mudslide to occur. In other areas, thunderstorms produced gusty and erratic outflow winds.
- Debris Flow and Hail in Nevada, May 21, 2023Incoming trough off the Pacific Northwest coast flattened high pressure across the west allowing for increased potential for more widespread showers and thunderstorms through May 21 that continued into the early part of the following week.
- Flash Flood and Debris Flow in Nevada, July 23, 2012Moisture (precipitable water near 1 inch) moving north from southern California and Nevada combined with daytime heating to produce afternoon and evening thunderstorms with heavy rain on the 23rd.
- Debris Flow and Flood in Nevada, August 22, 2017An upper-level area of low pressure near the California coast and a ridge axis over the eastern Great Basin combined to bring increased south to southeast flow into western Nevada and aided in producing a focusing mechanism for thunderstorms.
- Debris Flow and Flood in Nevada, June 25, 2024The northern transport of moisture around the periphery of the ridge building over the Great Basin region, along with increased low level convergence ahead of an incoming upper trough, increased the showers and Thunderstorm chances across the Sierra from Mono County to the Lake…
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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.