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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 04 2026 at 7:46 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
17.4kaf
25%
04/25/2026
12.0kaf
50% (Prob)
04/09/2026
7.0kaf
75%
04/01/2026
3.8kaf
90% (Min)
04/01/2026
3.1kaf
Tabular 5-Day Volume Accumulations (1000s of Acre-Feet)
Probability02/04 to 02/0902/09 to 02/1402/14 to 02/1902/19 to 02/24
10%15.7 kaf19.7 kaf41.0 kaf56.1 kaf
25%15.6 kaf16.7 kaf27.0 kaf33.2 kaf
50%
(Median)
15.5 kaf15.5 kaf17.4 kaf20.2 kaf
75%15.5 kaf15.0 kaf14.7 kaf14.1 kaf
90%15.4 kaf14.9 kaf14.2 kaf13.7 kaf

Location Photographs

ESRI™ Locator Map