CNRFC - Hydrology - Observed River/Reservoir Conditions

TRUCKEE RIVER - RENO (TRRN2)

Latitude: 39.53º N	Longitude: 119.79º W	Elevation: 4445 Feet
Location: Washoe County in Nevada		Bulletin Group: Eastern Sierra		River Group: Eastern Sierra

Action/Monitor: 10.0 Feet

Minor Flood: 12.0 Feet

Moderate Flood: 13.0 Feet

Major Flood: 14.0 Feet

Plot Type:

Observed Data Credit
	Raw streamflow data is provided by the US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

Historical Mean Daily Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2025*	1,370	6.23	Feb 05, 2025
2024*	1,700	6.54	May 15, 2024
2023*	5,680	9.58	May 23, 2023
2022*	5,200	9.31	Oct 25, 2021
2021*	790	5.31	May 7, 2021
Historical High Stage/Flow Events (Period of Record - March 1907** to Present) - Ranked by Flow
1956*	20,800	13.63***	Dec 23, 1955
1951*	19,900	13.83***	Nov 21, 1950
1963*	18,400	13.28***	Feb 1, 1963
1997*	18,200	14.94***	Jan 2, 1997
2006*	16,400	13.38	Dec 31, 2005
1907*	14,600	--	Mar 18, 1907
* Discharge affected to unknown degree by regulation or diversion Most recent continuous record back to Oct 1947 with segmented periods back to Mar 1907 * Datum and location change on 10/1/1998, and not directly relatable to old location.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
15.5 Feet	Record catastrophic flooding from Mogul to Reno. Property and infrastructure in the floodplain sustain heavy damage. Reno airport and portions of downtown under about 6 feet of water. Transportation, power, phone, water, and hospital services disrupted through region. Only Interstate 80, Wells and Highway 395 bridges likely to remain open. Downtown Reno flooded from approximately 3rd Street in north to Court/Mill Streets in south.
15.0 Feet	Near Record flooding between Mogul and Reno with extensive flood damage. Reno airport and downtown flood several feet deep. Downtown Reno floods from approximately 2nd Street on the north side of the river to Court/Mill streets on the south. Casinos, hotels, stores, post office, courthouse, phone building, bus depot, churches, museums and parks flood. Utility lines on bridges may be severed. Idlewild and Wingfield Parks flood up to 10 feet. Bridges likely closed except I-80, Wells and 395. Similar to 97.
14.5 Feet	Major damage from Mogul to Reno. Extensive flood damage in downtown Reno and the Reno airport near level of January 1997 event.
14.0 Feet	Major Flood stage. Major flooding with serious damage from Mogul to Reno. Downtown Reno and the Reno airport begin to have serious river flooding roughly between 2nd Street on the north to Court/Mill Streets on the south. Transportation severely impacted, many roads and bridges flood.
13.5 Feet	Moderate flooding from Mogul to Reno. Flooding area includes downtown Reno with impacts expanding into multiple commercial and municipal buildings. Flooding may start impacting the airport. Slightly above the level of the 12/31/05 flooding.
13.0 Feet	Moderate Flood stage. Moderate flooding from Mogul to Reno. Only I-80, Keystone, Virginia street, Wells Ave and Highway 395 bridges likely to remain open. Flooding expected to begin impacting downtown Reno along north side of river near Booth Street and along Riverside and portions of 1st Street. Flooding may also start occurring at the Grand Sierra Resort RV Park unless protective measures are implemented.
12.5 Feet	Minor flooding from Mogul to Reno. River flooding low areas, parks, and trails between Mogul and Reno. Out of bank flow near Booth Street and 1st Street is possible. Arlington, Sierra, Center, and Lake Street Bridges likely closed. Debris accumulation or bank erosion may lead to expanded impacts. Similar to 1/9/17 flood event.
12.0 Feet	Flood stage. Minor flooding with bank full conditions from Mogul to Reno with significant inundation to Truckee River Walk, riverside parks and damage to park infrastructure. Impacts to transportation, as many downtown Reno bridges may be closed for public safety and to facilitate debris removal. Overtopping of river bank near Booth Street in Reno is possible.
11.5 Feet	Near maximum safe flow from Mogul to Greg Street Bridge in Reno, minor flooding of bike path and riverside parks. Close monitoring is necessary as debris build up or bank erosion could easily lead to flooding. Similar to 2/10/2017 flood event.
11.0 Feet	Very high flows with some inconvenience flooding of riverside parks and bike path.
10.0 Feet	Monitor Stage, No flooding from Mogul to Greg Street Bridge in Reno. Significant preparations to riverside parks begin in advance of this level. Releases from flood control reservoirs (Prosser, Stampede and Boca) are cut slightly in advance of this level. Similar to high flow of 4/7/2008.

Official 7 Day National Weather Service Forecast (NVZ003)

Tonight: Partly cloudy. Lows 38 to 48. South winds 10 to 15 mph.

Thursday: Partly cloudy in the morning then becoming mostly cloudy. Chance of rain. Highs 63 to 68. Southeast winds 10 to 15 mph increasing to south 15 to 25 mph in the afternoon. Gusts up to 40 mph.

Thursday Night: Rain likely. Lows 34 to 44. South winds 15 to 20 mph with gusts up to 35 mph shifting to the southwest around 10 mph after midnight.

Friday: Mostly cloudy with a chance of rain and snow. Highs 53 to 58. West winds 10 to 15 mph.

Friday Night: Partly cloudy. Slight chance of rain in the evening. Lows 31 to 41. Light winds.

Saturday: Mostly cloudy with a slight chance of rain. Highs 54 to 59.

Saturday Night: Mostly cloudy with a chance of rain. Lows 36 to 41.

Sunday: Mostly cloudy with a chance of rain. Highs 53 to 58.

Sunday Night and Monday: Mostly cloudy with a chance of rain and snow. Lows 34 to 39. Highs 46 to 51.

Monday Night: Mostly cloudy. Slight chance of rain and snow. Lows 22 to 32.

Tuesday: Mostly cloudy in the morning, then partly cloudy with a slight chance of snow in the afternoon. Highs 43 to 48.

Tuesday Night: Partly cloudy. Lows 25 to 30.

Wednesday: Mostly cloudy. Slight chance of rain and snow in the afternoon. Highs 42 to 52.

Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Reno Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.

NWS RSS Feed