CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

WEST FORK CARSON RIVER - WOODFORDS (WOOC1)

Latitude: 38.77º N	Longitude: 119.83º W	Elevation: 5755 Feet
Location: Alpine County in California		Bulletin Group: Eastern Sierra		River Group: Eastern Sierra

Issuance Time:

Jul 26 2024 at 7:22 AM PDT

Next Issuance:

Jul 27 2024 at 9:00 AM PDT

Monitor Stage: 12.5 Feet

Flood Stage: 13.5 Feet

Plot Type:

Please Note: 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.

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
2023*	1,940	14.02	May 19, 2023
2022*	1,180	13.51	Oct 25, 2021
2021*	241	11.56	May 7, 2021
2020*	615	12.70	Apr 30, 2020
2019*	1,140	13.42	Jun 7, 2019
Historical High Stage/Flow Events (Period of Record - Oct 1938 to Present) - Ranked by Flow
1997*	8,100	15.36	Jan 01, 1997
1963*	4,890	9.00	Feb 01, 1963
1956*	4,810	8.86**	Dec 23, 1955
1938*	3,500	8.00**	Dec 11, 1937
* Discharge affected to unknown degree by regulation or diversion
** Prior to November 1958, gage at two different datums at the same location.
*** November 1958 to January 1963, gage 150 ft downstream. Datum change with a difference of +3.06 ft must be applied to data in this time range to convert to current datum.
**** March 1997, gage moved 200 ft upstream using same datum.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Impacts - E19 Information
15.5 Feet	Disastrous, record flooding along entire reach of West Fork Carson River in both Alpine County, California, and Douglas County, Nevada. Extensive damage to homes, businesses, schools, roads, bridges, and irrigation systems. Communications, power, and transportation systems severely disrupted. Many highways, roads, and bridges impassable. Roughly Similar peak level to January 1997 event.
15.0 Feet	Major Flooding. Substantial damage to homes, businesses, schools, and property in south Carson Valley from Centerville to Genoa. Many local roads flood including Centerville, Mottsville, and Muller Lanes. Interruption of power, communications, and water systems. Major flooding also in Alpine County, California, near Woodfords and Paynesville. CA Highways 89 and 88, and NV Highway 88 flood. Downstream Hwy 395 floods.
14.5 Feet	Moderate flooding in southwest Carson Valley between Centerville and Genoa, with some damage to homes and businesses. Many local roads flooded in this area. Minor to moderate flooding in Alpine County, California, near Woodfords and Paynesville. Lane or road closures on Highway 395 north of Stephanie Way likely if combined with flood flows on the East Fork. Similar peak level to December 2005 event.
14.0 Feet	Minor flooding in the southwestern Carson Valley between Centerville and Genoa,impacting agricultural areas, local roads, and outbuildings. Impacts will be more significant if heavy rain and/or snowmelt cause significant rises in small creeks draining the east side of the Carson Range below Woodfords. Possible lane closures on Highway 395 north of Stephanie Way if combined with flood flows on the East Fork. Similar peak level to January 2017 event and May 2017 peak snowmelt.
13.5 Feet	Minor flooding begins in lowest areas along the West Fork of the Carson River in southwest Carson Valley including agricultural areas, local roads and outbuildings. Residents along the river should prepare for more serious flooding if there are additional rises expected due to snowmelt and/or rainfall runoff. Impacts will be more significant if heavy rain and/or snowmelt causes significant rises in small creeks draining the east side of the Carson Range below Woodfords. Similar to peak of Feb 2017 event.
12.5 Feet	Monitoring Stage. No flooding occurs. However, residents along the West Fork Carson River should be prepared for flooding if there are additional rises expected due to snowmelt and/or rainfall runoff.

Official 7 Day National Weather Service Forecast (CAZ072)

Today: Sunny. Highs 67 to 77. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the afternoon.

Tonight: Clear. Lows 37 to 47. West winds 10 to 15 mph in the evening becoming light.

Sunday: Sunny. Highs 70 to 80. Light winds becoming west around 10 mph in the afternoon.

Sunday Night: Clear. Lows 39 to 49. West winds around 10 mph in the evening becoming light.

Monday: Sunny. Highs 70 to 80. Light winds becoming southwest around 10 mph in the afternoon.

Monday Night: Clear. Lows 39 to 49.

Tuesday and Tuesday Night: Clear. Highs 71 to 81. Lows 39 to 49.

Wednesday through Friday: Clear. Highs 78 to 88. Lows 43 to 53.

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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Verification - Historical Graphical RVF
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