CNRFC - Ensemble Products

*** 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.

Short-Range Products (hourly timestep)

Long-Range Products (daily timestep)

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Location:

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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 07, 2025 at 8:17 AM PDT

Action/Monitor: N/A

Minor Flood: N/A

Moderate Flood: N/A

Major Flood: N/A

Please Note:

Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

Short-Range Peak Exceedance Plot Product Info. Plot Type:

CSV Ensemble Files (Data in kcfs): Forecast Group | SOSC1

Cursor readout:

Show:

		Official Forecast (Deterministic)
		Ensemble Mean
		Model Traces

	Hourly Probabilities
		0-5% chance
		5-25% chance
		25-40% chance
		40-60% chance

What information is considered in this forecast?

Verification / Historical Plots
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Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ067)

Tonight: Mostly clear. Lows 58 to 68. Prevailing west winds up to 10 mph in the evening becoming light.

Sunday: Mostly sunny. Highs 83 to 93. Prevailing west winds up to 10 mph.

Sunday Night: Mostly clear. Lows 60 to 68. Prevailing west winds up to 10 mph in the evening becoming light.

Monday: Sunny. Highs 86 to 96. Light winds becoming southwest up to 10 mph in the afternoon.

Monday Night: Clear. Lows 60 to 70. Prevailing west winds up to 10 mph in the evening becoming light.

Tuesday: Sunny. Highs 85 to 95.

Tuesday Night: Clear. Lows 56 to 65.

Wednesday through Thursday Night: Clear. Highs 80 to 91. Lows 53 to 65.

Friday through Saturday: Clear. Highs 75 to 86. Lows 51 to 59.

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