CNRFC - Hydrology - River Guidance - Graphical RVF

WEST FORK CARSON RIVER - WOODFORDS (WOOC1)

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

Issuance Time:

Mar 20 2023 at 2:47 PM PDT

Next Issuance:

Mar 21 2023 at 9:00 AM PDT

Monitor Stage: 12.5 Feet

Flood Stage: 13.5 Feet

Plot Type:

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*	241	11.56	May 7, 2021
2020*	615	12.70	Apr 30, 2020
2019*	1,140	13.42	Jun 7, 2019
2018*	2,750	14.38	Apr 7, 2018
2017*	2,380	14.16	May 5, 2017
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

Official 7 Day National Weather Service Forecast (CAZ072)

Tonight: Clear in the evening, then mostly cloudy with a slight chance of snow showers after midnight. Lows 15 to 25. South winds 10 to 15 mph.

Tuesday: Chance of snow showers in the morning, then heavy snow showers in the afternoon. Snow accumulation of 2 to 6 inches with 4 to 8 inches above 7000 feet. Highs 31 to 36. East winds 10 to 20 mph. Gusts up to 30 mph increasing to 45 mph in the afternoon. Ridge gusts up to 60 mph in the afternoon.

Tuesday Night: Cloudy with a chance of snow showers. Snow accumulation up to 3 inches. Lows 15 to 25. Southwest winds 10 to 20 mph. Gusts up to 45 mph in the evening. Ridge gusts up to 60 mph in the evening.

Wednesday: Snow showers likely. Highs 32 to 37. Southwest winds 10 to 15 mph.

Wednesday Night: Mostly cloudy with a chance of snow showers. Lows 15 to 25. West winds 10 to 15 mph.

Thursday: Mostly cloudy with a chance of snow showers. Highs 33 to 38.

Thursday Night: Mostly cloudy with a chance of snow showers. Lows 14 to 24.

Friday through Saturday Night: Mostly cloudy with a chance of snow showers. Highs 31 to 36. Lows 5 to 15.

Sunday: Partly cloudy in the morning, then mostly cloudy with a chance of snow showers in the afternoon. Highs 31 to 41.

Sunday Night and Monday: Brisk. Snow showers likely. Lows 11 to 21. Highs 34 to 44.

Impacts - E19 Information
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.
13.5 Feet	Flood Stage. Minor flooding begins in lowest areas along the West Fork Carson River in southwest Carson Valley including 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 to peak to February 2017 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.
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.
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.
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.
16.0 Feet	Record, disastrous flooding previously unknown on entire West Fork Carson River in southwest Douglas County, Nevada, and eastern Alpine County, California. Extensive damage to homes, businesses, schools, roads, bridges,water, and irrigation systems. Power, communications, and transportation systems severely affected. Most highways and bridges flooded or washed out. Exceeds record 1/1/1997 flood.

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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