CNRFC - Hydrology - River Guidance - Graphical RVF

TRUCKEE RIVER - FARAD (FARC1)

Latitude: 39.43º N	Longitude: 120.03º W	Elevation: 5153 Feet
Location: Nevada County in California		River Group: Eastern Sierra

Issuance Time:

Sep 25 2021 at 9:07 AM PDT

Next Issuance:

Sep 26 2021 at 9:00 AM PDT

Monitor Stage: 10.0 Feet

Flood Stage: 11.0 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
2020*	2,130	5.94	May 18, 2020
2019*	4,650	7.82	Apr 9, 2019
2018*	6,580	8.97	Apr 7, 2018
2017*	9,160	10.27	Jan 8, 2017
2016*	2,920	6.39	Jan 30, 2016
Historical High Stage/Flow Events (Period of Record - Sept 1899 to Present) - Ranked by Flow
1951*	17,500****	14.50	Nov 21, 1950
1938*	15,500***	11.59	Dec 11, 1937
1907*	15,300**	11.59	Dec 11, 1937
1997*	14,900	13.13	Jan 02, 1997
* Discharge affected by regulation or diversion
** Discharge is a daily average
*** Aug 1912 through Dec 1937, water stage recorder at location 4.1 miles upstream at different datum.
**** Jan 1938 through Aug 1957, water stage recorder at approximate same location operated by TCID at datum 1 ft higher.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ072)

Today: Partly cloudy in the morning then becoming sunny. Haze. Highs 67 to 77. Southwest winds 10 to 20 mph. Gusts up to 30 mph in the afternoon.

Tonight: Clear, haze. Lows 37 to 47. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the evening.

Monday: Sunny. Haze through the day. Smoke in the afternoon. Highs 63 to 73. Southwest winds 10 to 15 mph increasing to 15 to 25 mph with gusts up to 40 mph in the afternoon. Ridge gusts up to 50 mph.

Monday Night: Clear in the evening then becoming partly cloudy. Chance of showers. Snow level 9500 to 10000 feet. Lows 31 to 41. Southwest winds 15 to 25 mph with gusts up to 35 mph. Ridge gusts up to 65 mph.

Tuesday: Partly cloudy with a slight chance of showers in the morning, then sunny in the afternoon. Snow level 8500 feet. Highs 53 to 63. Southwest winds 10 to 20 mph with gusts up to 35 mph. Ridge gusts up to 75 mph decreasing to 55 mph in the afternoon.

Tuesday Night: Clear. Lows 24 to 34.

Wednesday and Wednesday Night: Clear. Highs 54 to 64. Lows 26 to 36.

Thursday through Friday: Clear. Highs 62 to 72. Lows 30 to 40.

Friday Night and Saturday: Partly cloudy. Lows 32 to 42. Highs 64 to 74.

Impacts - E19 Information
8.0 Feet	No flooding from Boca to Mogul, including Floriston and Verdi. USGS 5 year flood.
8.5 Feet	No flooding from Boca to Mogul, including Floriston and Verdi. This is maximum safe flow in lowest portions of Truckee Meadows below Sparks. Releases from Prosser, Boca, and Stampede Reservoirs are cut at this point so flow at Reno does not exceed 6000 cfs. USGS 7 year flood.
9.0 Feet	No flooding from Boca to Mogul, including Floriston and Verdi. USGS 8 year flood.
9.5 Feet	No flooding from Boca to Mogul, including Floriston and Verdi. USGS 10 year flood.
10.0 Feet	No flooding from Boca to Mogul, including Floriston and Verdi. USGS 12 year flood.
10.5 Feet	No flooding from Boca to Mogul, but near bankfull in portions of the Verdi/Mogul area. USGS 15 year flood.
11.0 Feet	Flood Stage - Minor lowland flooding in some locations from Boca to Mogul, especially Verdi/Mogul area. USGS 20 year flood.
11.5 Feet	Minor to moderate flooding from Boca to Mogul, especially to trailer and public parks in the Verdi/Mogul area along the river. Similar impacts to 02/01/1963 and 12/23/1964 floods at Farad. USGS 25 year flood.
12.0 Feet	Moderate flooding from Boca to Mogul, especially to trailer and public parks in the Verdi/Mogul area along the river. Some damage to roads, bridges, and low-lying structures in the area. Similar in impact to floods which occurred on 02/25/1928, 02/01/1963, and 12/23/1964 at Farad. USGS 33 year flood.
12.5 Feet	Moderate to major flooding from Boca to Mogul. Moderate damage to roads, bridges, and low-lying buildings especially in the Verdi/Mogul area. Transportation affected with many road closures. Impacts worse than 02/01/1963 and 12/23/1964 floods at Farad, but not as severe as 01/02/1997 or 12/23/1955 floods. USGS 40 year flood.
13.0 Feet	Major flooding from Boca to Mogul. At these flows major damage should be expected to low-lying roads, bridges, and structures along the river, especially from Verdi/Mogul area. Transportation significantly affected. USGS 50 year flood. Similar to floods of 01/02/1997 and 12/23/1955.
13.5 Feet	Major flooding with extensive flood damage to roads, bridges, and structures from Boca to Mogul, especially in the Verdi/Mogul area. Transportation becomes very difficult, and most major roads/highways in the area are flooded. Similar in impact to the 12/11/1937 and 03/18/1907 floods, worse than 01/02/1997 flood. USGS 65 year flood.
14.0 Feet	Disastrous, near record flooding from Boca to Mogul with extensive damage likely to low-lying structures along the river. Regional transportation severely affected, with many major roads flooded or damaged. USGS 85 year flood. Worse than 03/18/1907 and 12/11/1937 floods, but not as severe as the flood of record at Farad on 11/21/1950.
14.5 Feet	Flood disaster from Boca downstream to Nixon. Near record flooding of buildings, roads, and bridges in the Verdi/Mogul area. Equal to the record flood at Farad on 11/21/1950. USGS 100 year flood.
15.0 Feet	Record flooding at Farad and near record to record flooding on entire mainstream Truckee. Disastrous flooding of buildings, roads, and bridges in Verdi/Mogul area. Transportation nearly cut off in all directions to/from Reno/Sparks. Well over USGS 100 year flood, and Farad record stage of 14.4 feet, record flow of 17,500 cfs (both set in 11/21/1950).

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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