CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

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

Issuance Time:

Apr 30 2025 at 8:07 AM PDT

Next Issuance:

May 01 2025 at 9:00 AM PDT

Action/Monitor: 10.0 Feet

Minor Flood: 12.0 Feet

Moderate Flood: 13.0 Feet

Major Flood: 14.0 Feet

Plot Type:

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.

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 Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
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
2020*	1,910	6.82	May 18, 2020
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
* 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)

Today: Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs 67 to 72. Light winds becoming northeast around 10 mph in the afternoon.

Tonight: Clear. Lows 42 to 47. Northeast winds around 10 mph in the evening becoming light.

Thursday: Sunny. Highs 70 to 75. Light winds becoming east around 10 mph in the afternoon.

Thursday Night: Clear. Lows 44 to 49. Northeast winds around 10 mph in the evening becoming light.

Friday: Sunny in the morning, then partly cloudy with a slight chance of showers in the afternoon. Highs 74 to 79. Light winds becoming south around 10 mph in the afternoon.

Friday Night: Mostly cloudy. Slight chance of showers and thunderstorms in the evening, then slight chance of showers after midnight. Lows 45 to 50.

Saturday: Mostly cloudy. Chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs 58 to 63.

Saturday Night and Sunday: Mostly cloudy with a chance of showers. Lows 36 to 41. Highs 52 to 57.

Sunday Night: Mostly cloudy with a slight chance of showers. Lows 38 to 43.

Monday: Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with a slight chance of showers in the afternoon. Highs 61 to 66.

Monday Night: Partly cloudy. Lows 40 to 45.

Tuesday: Sunny. Highs 67 to 72.

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.

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