CNRFC - Hydrology - Observed River/Reservoir Conditions

TRUCKEE RIVER - VISTA (VISN2)

Latitude: 39.52º N	Longitude: 119.70º W	Elevation: 4368 Feet
Location: Washoe County in Nevada		River Group: Eastern Sierra

Monitor Stage: 15.0 Feet

Flood Stage: 17.0 Feet

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

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2021*	765	5.11	May 7, 2021
2020*	1,900	7.71	May 18, 2020
2019*	5,100	12.62	Apr 9, 2019
2018*	6,190	13.85	Apr 7, 2018
2017*	11,800	19.39	Jan 9, 2017
Historical High Stage/Flow Events (Period of Record - Discontinuous 1899 - Present) - Ranked by Flow
1963*	18,900	16.76**	Feb 01, 1963
1997*	18,500	24.16**	Jan 02, 1997
1907*	17,000	--	Mar 18, 1907
1986*	16,100	15.82**	Feb 18, 1986
2006*	13,700	20.28	Dec 31, 2005
* Discharge affected to unknown degree by regulation or diversion
** Gage location 1.2 miles downstream. Datum change with a difference of -0.99 ft must be applied to data before 10/01/1993 to convert to current datum.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (NVZ003)

Today: Mostly cloudy. Highs 44 to 49. Light winds becoming south around 10 mph in the afternoon.

Tonight: Scattered showers in the evening, then rain and snow after midnight. Snow level 6000 feet. Snow accumulation of 1 to 4 inches. Lows 30 to 35. South winds 10 to 15 mph increasing to 15 to 25 mph after midnight. Gusts up to 45 mph.

Sunday: Mostly cloudy with scattered snow showers. Snow accumulation up to 2 inches. Highs 39 to 44. Southwest winds 15 to 25 mph with gusts up to 45 mph.

Sunday Night: Mostly cloudy in the evening then becoming partly cloudy. Lows 18 to 28. West winds 10 to 15 mph. Gusts up to 35 mph in the evening.

Monday: Partly cloudy in the morning then clearing. Highs 36 to 41. Northwest winds 10 to 15 mph.

Monday Night: Clear. Lows 16 to 26.

Tuesday and Tuesday Night: Partly cloudy. Highs 42 to 47. Lows 20 to 30.

Wednesday through Thursday: Clear. Highs 46 to 51. Lows 17 to 27.

Thursday Night and Friday: Partly cloudy. Lows 23 to 28. Highs 45 to 50.

Impacts - E19 Information
15.0 Feet	Monitor Stage. Approaching bankfull from Greg Street Bridge in Reno to Derby Dam. Releases from flood control reservoirs (Prosser, Stampede and Boca) are cut slightly in advance of this level. Very minor flooding of low lying meadows and Truckee River bike path below East McCarran Boulevard in Sparks. Some backwater effects extend south along Steamboat Creek to near Pembroke Drive, and could hinder storm water drainage in the Sparks Industrial area.
16.0 Feet	Near maximum safe channel capacity between Greg Street Bridge and Derby Dam. High Truckee River stage leads to increasing backwater south along Steamboat Creek and limits stormwater drainage from the Sparks Industrial area. Similar to secondary January 2017 peak (1/11/2017).
17.0 Feet	Flood Stage. Minor flooding below Greg Street Bridge including parks and bike path along the river, UNR Farms, and backwater flooding of Steamboat Creek and Boynton Slough. Stormwater flooding possible in Sparks Industrial area with heavy valley rains. No adverse river flooding impacts between the eastern edge of Sparks and Derby Dam.
18.0 Feet	Expanding minor flood impacts through low lying areas with increasing backwater problems. Water just starting to overflow the south bank near North Edison Way. Similar to 2/10/2017 peak. No adverse river flooding impacts between the eastern edge of Sparks and Derby Dam.
18.5 Feet	More extensive out of bank flows beginning to significantly impact low lying areas along the river including areas around North Edison Way, UNR farms, Clean Water Way, Pembroke Lane and Lower Steamboat Creek. Stormwater flooding likely in Sparks Industrial area. Backwater issues begin to impact Long Valley Creek in Lockwood.>
19.0 Feet	Moderate flooding. Numerous road closures including East McCarren, East Mill Street, Clean Water Way, Pembroke Lane, and many streets in the Sparks Industrial area. Combined backwater and local tributary flows may start impacting lowest homes near Boynton Slough in Hidden Valley. Flooding of lower ranch lands below Lockwood. Slightly lower than 1/9/2017 peak stage.
20.0 Feet	Moderate flooding impacts from Reno to Derby Dam impacting numerous roads, Sparks Industrial area, and several low lying homes in Hidden Valley. Similar to 12/31/2005 peak stage, and slightly higher than 1/9/2017.
21.0 Feet	Major flooding from Greg Street Bridge to Derby Dam, numerous roads and bridges flooded, extensive flooding in the Sparks Industrial area, and numerous lower homes in Hidden Valley. Phone, power, and water supplies begin to be impacted.
22.0 Feet	Major flooding with significant property and infrastructure damage. Many bridges closed. Ponding water likely impacting Reno Airport.
23.0 Feet	Extensive damage from Reno to Derby Dam, including the Reno Airport, Sparks, and the Truckee Meadows. Truckee Meadows flooded from Reno Airport east to Hidden Valley and Glendale Ave and Interstate 80 south to Mira Loma. Some flooding north of I-80 likely near Sparks Blvd.
24.0 Feet	Flood disaster from Greg Street Bridge in Reno to Derby Dam. Reno Airport under several feet of water. Deepest areas in Sparks Industrial area up to 10 feet deep. Flooding likely impacting Interstate 80. Truckee River floods roads accessing homes in Lockwood in addition to major backwater flooding on Long Valley Creek. Peak similar to 1/2/1997 peak stage.
25.0 Feet	Record Flooding from Reno to Derby Dam. Disastrous flooding with extensive damage to property and infrastructure in the floodplain, including the airport. Major disruption to power, communication, transportation, water, and hospital services.
26.0 Feet	Catastrophic Record flooding with massive damage to property and infrastructure, major disruption to power, communication, transportation, water, and hospital services from Greg Street Bridge in Reno to Derby Dam.

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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