CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

EAST FORK CARSON RIVER - MARKLEEVILLE (CEMC1)

Latitude: 38.71º N	Longitude: 119.76º W	Elevation: 5400 Feet
Location: Alpine County in California		Bulletin Group: Eastern Sierra		River Group: Eastern Sierra

Issuance Time:

May 01 2025 at 7:46 AM PDT

Next Issuance:

May 02 2025 at 9:00 AM PDT

Action/Monitor: 8.0 Feet

Minor Flood: 9.0 Feet

Moderate Flood: 10.0 Feet

Major Flood: 11.0 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*	2,150	5.72	May 18, 2024
2023*	5,540	8.49	Dec 31, 2022
2022*	3,710	6.70	Oct 25, 2021
2021*	994	4.36	May 6, 2021
2020*	1,520	5.01	Apr 29, 2020
Historical High Stage/Flow Events (Period of Record - Sept 1960 to Present) - Ranked by Flow
1997*	18,900	11.78	Jan 24, 1970
1963*	15,100	8.21**	Jan 31, 1963
2017*	11,700	9.98	Jan 8, 2017
2006*	10,300	9.09	Dec 31, 2005
1986*	9,520	8.79	Mar 8, 1986
1965*	9,100	7.20**	Dec 23, 1964
* Discharge affected to unknown degree by regulation or diversion
** Prior to October 1967, datum change with a difference of -2.0 ft must be applied to all data before date to convert to current datum.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
12.0 Feet	Major impacts to transportation, communication, power and water systems. In excess of January 1997 event.
11.0 Feet	Major Flood Stage. Major impact to transportation including Highways 89 and 4. Communication, water and power systems may be impacted. Significant inundation of low lying rangelands.
10.0 Feet	Moderate Flood Stage. Moderate flooding impacting Carson River Resort campground, and potential for significant bank erosion causing road damage along Highways 89 and 4.
9.0 Feet	Minor Flood Stage. Minor flooding from Monitor Creek to Bryant Creek including impacts to river campgrounds and possible impacts to highway due to bank erosion. Similar to 1/8/17, 2/10/17 and 12/31/2005.
8.0 Feet	Monitor Stage. No flooding from from Monitor Creek to Bryant Creek, river near bankfull and may require precautionary measures to move resources away from the river. Additional impacts to recreational river users.

Official 7 Day National Weather Service Forecast (CAZ072)

Today: Sunny. Highs 60 to 70. Light winds becoming northeast around 10 mph in the afternoon.

Tonight: Clear. Lows 36 to 46. Light winds.

Friday: Sunny in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Snow level 9000 feet rising to 10000 feet. Highs 61 to 71. Light winds becoming southwest 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. Snow level 10000 feet lowering to 9000 feet. Lows 36 to 46. Southwest winds 10 to 15 mph.

Saturday: Chance of showers in the morning, then chance of showers with pockets of snow showers and thunderstorms likely in the afternoon. Snow level 8000 to 8500 feet. Highs 49 to 59. Light winds becoming southwest around 10 mph in the afternoon.

Saturday Night: Mostly cloudy. Chance of showers and thunderstorms in the evening, then chance of showers after midnight. Lows 30 to 40.

Sunday: Mostly cloudy with a chance of showers. Highs 44 to 54.

Sunday Night and Monday: Partly cloudy with a chance of showers. Lows 32 to 42. Highs 53 to 63.

Monday Night through Wednesday: Clear. Lows 34 to 44. Highs 61 to 71.

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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