National Weather Service California-Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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MCCLOUD RIVER - SHASTA LAKE (MSSC1)
Latitude: 40.95º NLongitude: 122.22º WElevation: 1100 FeetForecast Type: Unofficial Location
Location: Shasta County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Issuance Time: Sep 04 2026 at 7:17 AM PDTNext Issuance: Sep 05 2026 at 9:00 AM PDT
Action: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: McCloud River - Above Shasta Lake (MSSC1)
#
# File Generation Time:  09/04/2026 at 07:18 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  09/03/2026 at 11:00 AM PDT
# Maximum Observed Stage:                       9.54 Feet
# Maximum Observed Flow:                        226 cfs
#
# Earliest Date & Time of Maximum Forecast:     09/04/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       9.34 Feet
# Maximum Forecast Flow:                        162 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  08/30/2026 07 AM PDT            9.12            105                Not Applicable
  08/30/2026 08 AM PDT            9.12            105         0      Not Applicable
  08/30/2026 09 AM PDT            9.12            105         0      Not Applicable
  08/30/2026 10 AM PDT            9.12            105         0      Not Applicable
  08/30/2026 11 AM PDT            9.12            105         0      Not Applicable
  08/30/2026 12 PM PDT            9.12            105         0      Not Applicable
  08/30/2026 01 PM PDT            9.11            102         -      Not Applicable
  08/30/2026 02 PM PDT            9.11            102         0      Not Applicable
  08/30/2026 03 PM PDT            9.11            102         0      Not Applicable
  08/30/2026 04 PM PDT            9.11            102         0      Not Applicable
  08/30/2026 05 PM PDT            9.11            102         0      Not Applicable
  08/30/2026 06 PM PDT            9.11            102         0      Not Applicable
  08/30/2026 07 PM PDT            9.11            102         0      Not Applicable
  08/30/2026 08 PM PDT            9.10            100         -      Not Applicable
  08/30/2026 09 PM PDT            9.10            100         0      Not Applicable
  08/30/2026 10 PM PDT            9.10            100         0      Not Applicable
  08/30/2026 11 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 12 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 01 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 02 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 03 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 04 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 05 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 06 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 07 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 08 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 09 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 10 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 11 AM PDT            9.10            100         0      Not Applicable
  08/31/2026 12 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 01 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 02 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 03 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 04 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 05 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 06 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 07 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 08 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 09 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 10 PM PDT            9.10            100         0      Not Applicable
  08/31/2026 11 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 12 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 01 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 02 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 03 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 04 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 05 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 06 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 07 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 08 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 09 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 10 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 11 AM PDT            9.10            100         0      Not Applicable
  09/01/2026 12 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 01 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 02 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 03 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 04 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 05 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 06 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 07 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 08 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 09 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 10 PM PDT            9.10            100         0      Not Applicable
  09/01/2026 11 PM PDT            9.10            100         0      Not Applicable
  09/02/2026 12 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 01 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 02 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 03 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 04 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 05 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 06 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 07 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 08 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 09 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 10 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 11 AM PDT            9.10            100         0      Not Applicable
  09/02/2026 12 PM PDT            9.11            102         +      Not Applicable
  09/02/2026 01 PM PDT            9.13            107         +      Not Applicable
  09/02/2026 02 PM PDT            9.13            107         0      Not Applicable
  09/02/2026 03 PM PDT            9.14            109         +      Not Applicable
  09/02/2026 04 PM PDT            9.15            112         +      Not Applicable
  09/02/2026 05 PM PDT            9.15            112         0      Not Applicable
  09/02/2026 06 PM PDT            9.17            117         +      Not Applicable
  09/02/2026 07 PM PDT            9.18            120         +      Not Applicable
  09/02/2026 08 PM PDT            9.20            125         +      Not Applicable
  09/02/2026 09 PM PDT            9.21            127         +      Not Applicable
  09/02/2026 10 PM PDT            9.22            130         +      Not Applicable
  09/02/2026 11 PM PDT            9.24            135         +      Not Applicable
  09/03/2026 12 AM PDT            9.26            140         +      Not Applicable
  09/03/2026 01 AM PDT            9.28            145         +      Not Applicable
  09/03/2026 02 AM PDT            9.30            151         +      Not Applicable
  09/03/2026 03 AM PDT            9.32            157         +      Not Applicable
  09/03/2026 04 AM PDT            9.34            162         +      Not Applicable
  09/03/2026 05 AM PDT            9.38            175         +      Not Applicable
  09/03/2026 06 AM PDT            9.41            184         +      Not Applicable
  09/03/2026 07 AM PDT            9.45            196         +      Not Applicable
  09/03/2026 08 AM PDT            9.48            206         +      Not Applicable
  09/03/2026 09 AM PDT            9.50            213         +      Not Applicable
  09/03/2026 10 AM PDT            9.52            220         +      Not Applicable
  09/03/2026 11 AM PDT            9.54            226         +      Not Applicable
  09/03/2026 12 PM PDT            9.53            223         -      Not Applicable
  09/03/2026 01 PM PDT            9.53            223         0      Not Applicable
  09/03/2026 02 PM PDT            9.52            220         -      Not Applicable
  09/03/2026 03 PM PDT            9.51            216         -      Not Applicable
  09/03/2026 04 PM PDT            9.51            216         0      Not Applicable
  09/03/2026 05 PM PDT            9.50            213         -      Not Applicable
  09/03/2026 06 PM PDT            9.50            213         0      Not Applicable
  09/03/2026 07 PM PDT            9.49            210         -      Not Applicable
  09/03/2026 08 PM PDT            9.48            206         -      Not Applicable
  09/03/2026 09 PM PDT            9.48            206         0      Not Applicable
  09/03/2026 10 PM PDT            9.47            203         -      Not Applicable
  09/03/2026 11 PM PDT            9.47            203         0      Not Applicable
  09/04/2026 12 AM PDT            9.46            200         -      Not Applicable
  09/04/2026 01 AM PDT            9.46            200         0      Not Applicable
  09/04/2026 02 AM PDT            9.44            193         -      Not Applicable
  09/04/2026 03 AM PDT            9.43            190         -      Not Applicable
  09/04/2026 04 AM PDT            9.42            187         -      Not Applicable
  09/04/2026 05 AM PDT            9.41            184         -      Not Applicable
  09/04/2026 06 AM PDT            9.39            178         -      Not Applicable
  09/04/2026 07 AM PDT            9.36            168         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  09/04/2026 08 AM PDT            9.34            162                Not Applicable
  09/04/2026 09 AM PDT            9.32            157         -      Not Applicable
  09/04/2026 10 AM PDT            9.29            148         -      Not Applicable
  09/04/2026 11 AM PDT            9.27            143         -      Not Applicable
  09/04/2026 12 PM PDT            9.26            140         -      Not Applicable
  09/04/2026 01 PM PDT            9.24            135         -      Not Applicable
  09/04/2026 02 PM PDT            9.23            132         -      Not Applicable
  09/04/2026 03 PM PDT            9.22            130         -      Not Applicable
  09/04/2026 04 PM PDT            9.20            125         -      Not Applicable
  09/04/2026 05 PM PDT            9.19            122         -      Not Applicable
  09/04/2026 06 PM PDT            9.18            120         -      Not Applicable
  09/04/2026 07 PM PDT            9.17            117         -      Not Applicable
  09/04/2026 08 PM PDT            9.16            114         -      Not Applicable
  09/04/2026 09 PM PDT            9.16            114         0      Not Applicable
  09/04/2026 10 PM PDT            9.15            112         -      Not Applicable
  09/04/2026 11 PM PDT            9.14            109         -      Not Applicable
  09/05/2026 12 AM PDT            9.13            107         -      Not Applicable
  09/05/2026 01 AM PDT            9.13            107         0      Not Applicable
  09/05/2026 02 AM PDT            9.12            105         -      Not Applicable
  09/05/2026 03 AM PDT            9.11            102         -      Not Applicable
  09/05/2026 04 AM PDT            9.11            102         0      Not Applicable
  09/05/2026 05 AM PDT            9.10            100         -      Not Applicable
  09/05/2026 06 AM PDT            9.10            100         0      Not Applicable
  09/05/2026 07 AM PDT            9.10            100         0      Not Applicable
  09/05/2026 08 AM PDT            9.10            100         0      Not Applicable
  09/05/2026 09 AM PDT            9.10            100         0      Not Applicable
  09/05/2026 10 AM PDT            9.10            100         0      Not Applicable
  09/05/2026 11 AM PDT            9.10            100         0      Not Applicable
  09/05/2026 12 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 01 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 02 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 03 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 04 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 05 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 06 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 07 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 08 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 09 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 10 PM PDT            9.10            100         0      Not Applicable
  09/05/2026 11 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 12 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 01 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 02 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 03 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 04 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 05 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 06 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 07 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 08 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 09 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 10 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 11 AM PDT            9.10            100         0      Not Applicable
  09/06/2026 12 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 01 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 02 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 03 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 04 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 05 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 06 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 07 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 08 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 09 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 10 PM PDT            9.10            100         0      Not Applicable
  09/06/2026 11 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 12 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 01 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 02 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 03 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 04 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 05 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 06 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 07 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 08 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 09 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 10 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 11 AM PDT            9.10            100         0      Not Applicable
  09/07/2026 12 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 01 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 02 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 03 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 04 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 05 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 06 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 07 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 08 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 09 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 10 PM PDT            9.10            100         0      Not Applicable
  09/07/2026 11 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 12 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 01 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 02 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 03 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 04 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 05 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 06 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 07 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 08 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 09 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 10 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 11 AM PDT            9.10            100         0      Not Applicable
  09/08/2026 12 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 01 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 02 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 03 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 04 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 05 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 06 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 07 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 08 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 09 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 10 PM PDT            9.10            100         0      Not Applicable
  09/08/2026 11 PM PDT            9.10            100         0      Not Applicable
  09/09/2026 12 AM PDT            9.10            100         0      Not Applicable
  09/09/2026 01 AM PDT            9.10            100         0      Not Applicable
  09/09/2026 02 AM PDT            9.10            100         0      Not Applicable
  09/09/2026 03 AM PDT            9.10            100         0      Not Applicable
  09/09/2026 04 AM PDT            9.10            100         0      Not Applicable
  09/09/2026 05 AM PDT            9.10            100         0      Not Applicable
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.