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.

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MCCLOUD RIVER - SHASTA LAKE (MSSC1)

Latitude: 40.95º N	Longitude: 122.22º W	Elevation: 1100 Feet
Location: Shasta County in California		Bulletin Group: Upper Sacramento		River Group: Upper Sacramento

Issuance Time:

Jun 13, 2025 at 6:46 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 | MSSC1

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

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Official 7 Day National Weather Service Forecast (CAZ013)

Today: Sunny. Highs 68 to 83 higher elevations and 80 to 88 lower elevations. Light winds becoming southwest up to 10 mph in the afternoon.

Tonight: Clear. Lows 45 to 60 higher elevations and 53 to 63 lower elevations. Prevailing west winds up to 10 mph shifting to the north after midnight.

Saturday: Mostly sunny. Warmer. Highs 71 to 86 higher elevations and 82 to 90 lower elevations. Light winds becoming south up to 10 mph in the afternoon.

Saturday Night: Mostly clear. Lows 49 to 64. Prevailing south winds up to 10 mph in the evening becoming light.

Sunday: Mostly sunny in the morning then becoming partly cloudy. Highs 71 to 86 higher elevations and 83 to 91 lower elevations. Light winds becoming south up to 10 mph in the afternoon.

Sunday Night: Mostly cloudy. Lows 49 to 64.

Monday: Mostly sunny. Highs 74 to 89.

Monday Night through juneteenth: Clear. Lows 50 to 65. Highs 78 to 93.

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