CNRFC - Hydrology - River Guidance - Graphical RVF

*** IMPORTANT *** Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.

Location:

MIDDLE FORK COSUMNES RIVER - SOMERSET (SOSC1)

Latitude: 38.62º N	Longitude: 120.70º W	Elevation: 1821 Feet
Location: El Dorado County in California		Bulletin Group: San Joaquin		River Group: North San Joaquin

Issuance Time:

Jun 14 2025 at 7:23 AM PDT

Next Issuance:

Jun 15 2025 at 9:00 AM PDT

Action/Monitor: N/A

Minor Flood: N/A

Moderate Flood: N/A

Major Flood: N/A

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 California Department of Water Resources. View California Department of Water Resources Data for this station location.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ067)

Tonight: Clear. Lows 52 to 62. Prevailing southwest winds up to 10 mph in the evening becoming light.

Sunday: Mostly sunny. Highs 80 to 90. Light winds becoming southwest up to 10 mph in the afternoon.

Sunday Night: Clear. Lows 52 to 62. Prevailing southwest winds up to 10 mph in the evening becoming light.

Monday: Sunny. Highs 78 to 88. Light winds becoming southwest up to 10 mph in the afternoon.

Monday Night: Clear. Lows 53 to 61. Prevailing west winds up to 10 mph in the evening becoming light.

Tuesday: Sunny. Highs 83 to 93.

Tuesday Night: Clear. Lows 58 to 66.

Wednesday and Wednesday Night: Clear. Highs 87 to 97. Lows 58 to 66.

juneteenth and Thursday Night: Clear. Highs 82 to 92. Lows 51 to 66.

Friday through Saturday: Clear. Highs 72 to 86. Lows 48 to 59.

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 Sacramento 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
Month:	Day:	Year:	Cycle:
To view other verification locations, use our Historical Graphical River Forecast Interface.