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MCCLOUD RIVER - SHASTA LAKE (MSSC1)
Latitude:
40.95º N
Longitude:
122.22º W
Elevation:
1100 Feet
Location: Shasta County in CA
River Group: Upper Sacramento
Issuance Time: Feb 05 2026 at 7:54 AM PST
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

Flow data on this product are unregulated / full natural flow.
4x5-Day Probability Plot
Tabular 4 x 5-Day Streamflow Volume Data
Observed
Peak 1-Day Streamflow Volume:
(April 1 at 12 UTC to August 1 at 12 UTC)
  Observed
Available
Apr 2 to Aug 1
  

Forecast
Peak 1-Day Streamflow Volume:
(April 1 at 12 UTC to August 1 at 12 UTC)
10% (Max)
05/19/2026
17.5kaf
25%
04/22/2026
12.2kaf
50% (Prob)
04/09/2026
7.2kaf
75%
04/01/2026
4.1kaf
90% (Min)
04/01/2026
3.2kaf
Tabular 5-Day Volume Accumulations (1000s of Acre-Feet)
Probability02/05 to 02/1002/10 to 02/1502/15 to 02/2002/20 to 02/25
10%16.1 kaf22.5 kaf48.9 kaf55.7 kaf
25%15.7 kaf19.5 kaf37.3 kaf34.1 kaf
50%
(Median)
15.6 kaf15.4 kaf24.0 kaf21.4 kaf
75%15.4 kaf15.0 kaf15.5 kaf14.8 kaf
90%15.4 kaf14.8 kaf14.2 kaf13.9 kaf

Location Photographs

ESRI™ Locator Map