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 Feet
Location: Shasta County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Issuance Time: May 04 2025 at 8:19 AM PDTNext Issuance: May 05 2025 at 9:00 AM PDT
Action/Monitor: 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:  05/04/2025 at 08:20 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/29/2025 at 12:00 PM PDT
# Maximum Observed Stage:                       10.48 Feet
# Maximum Observed Flow:                        669 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/09/2025 at 03:00 AM PDT
# Maximum Forecast Stage:                       10.58 Feet
# Maximum Forecast Flow:                        731 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/29/2025 08 AM PDT           10.48            669                Not Applicable
  04/29/2025 09 AM PDT           10.48            669         0      Not Applicable
  04/29/2025 10 AM PDT           10.48            669         0      Not Applicable
  04/29/2025 11 AM PDT           10.48            669         0      Not Applicable
  04/29/2025 12 PM PDT           10.48            669         0      Not Applicable
  04/29/2025 01 PM PDT           10.47            662         -      Not Applicable
  04/29/2025 02 PM PDT           10.47            662         0      Not Applicable
  04/29/2025 03 PM PDT           10.47            662         0      Not Applicable
  04/29/2025 04 PM PDT           10.47            662         0      Not Applicable
  04/29/2025 05 PM PDT           10.46            656         -      Not Applicable
  04/29/2025 06 PM PDT           10.46            656         0      Not Applicable
  04/29/2025 07 PM PDT           10.46            656         0      Not Applicable
  04/29/2025 08 PM PDT           10.46            656         0      Not Applicable
  04/29/2025 09 PM PDT           10.46            656         0      Not Applicable
  04/29/2025 10 PM PDT           10.46            656         0      Not Applicable
  04/29/2025 11 PM PDT           10.45            650         -      Not Applicable
  04/30/2025 12 AM PDT           10.45            650         0      Not Applicable
  04/30/2025 01 AM PDT           10.45            650         0      Not Applicable
  04/30/2025 02 AM PDT           10.45            650         0      Not Applicable
  04/30/2025 03 AM PDT           10.45            650         0      Not Applicable
  04/30/2025 04 AM PDT           10.45            650         0      Not Applicable
  04/30/2025 05 AM PDT           10.45            650         0      Not Applicable
  04/30/2025 06 AM PDT           10.46            656         +      Not Applicable
  04/30/2025 07 AM PDT           10.46            656         0      Not Applicable
  04/30/2025 08 AM PDT           10.46            656         0      Not Applicable
  04/30/2025 09 AM PDT           10.46            656         0      Not Applicable
  04/30/2025 10 AM PDT           10.46            656         0      Not Applicable
  04/30/2025 11 AM PDT           10.45            650         -      Not Applicable
  04/30/2025 12 PM PDT           10.45            650         0      Not Applicable
  04/30/2025 01 PM PDT           10.45            650         0      Not Applicable
  04/30/2025 02 PM PDT           10.45            650         0      Not Applicable
  04/30/2025 03 PM PDT           10.44            644         -      Not Applicable
  04/30/2025 04 PM PDT           10.44            644         0      Not Applicable
  04/30/2025 05 PM PDT           10.44            644         0      Not Applicable
  04/30/2025 06 PM PDT           10.44            644         0      Not Applicable
  04/30/2025 07 PM PDT           10.43            638         -      Not Applicable
  04/30/2025 08 PM PDT           10.43            638         0      Not Applicable
  04/30/2025 09 PM PDT           10.43            638         0      Not Applicable
  04/30/2025 10 PM PDT           10.43            638         0      Not Applicable
  04/30/2025 11 PM PDT           10.43            638         0      Not Applicable
  05/01/2025 12 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 01 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 02 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 03 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 04 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 05 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 06 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 07 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 08 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 09 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 10 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 11 AM PDT           10.43            638         0      Not Applicable
  05/01/2025 12 PM PDT           10.43            638         0      Not Applicable
  05/01/2025 01 PM PDT           10.43            638         0      Not Applicable
  05/01/2025 02 PM PDT           10.42            633         -      Not Applicable
  05/01/2025 03 PM PDT           10.42            633         0      Not Applicable
  05/01/2025 04 PM PDT           10.42            633         0      Not Applicable
  05/01/2025 05 PM PDT           10.42            633         0      Not Applicable
  05/01/2025 06 PM PDT           10.41            627         -      Not Applicable
  05/01/2025 07 PM PDT           10.41            627         0      Not Applicable
  05/01/2025 08 PM PDT           10.41            627         0      Not Applicable
  05/01/2025 09 PM PDT           10.41            627         0      Not Applicable
  05/01/2025 10 PM PDT           10.41            627         0      Not Applicable
  05/01/2025 11 PM PDT           10.41            627         0      Not Applicable
  05/02/2025 12 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 01 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 02 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 03 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 04 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 05 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 06 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 07 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 08 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 09 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 10 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 11 AM PDT           10.41            627         0      Not Applicable
  05/02/2025 12 PM PDT           10.41            627         0      Not Applicable
  05/02/2025 01 PM PDT           10.41            627         0      Not Applicable
  05/02/2025 02 PM PDT           10.41            627         0      Not Applicable
  05/02/2025 03 PM PDT           10.40            621         -      Not Applicable
  05/02/2025 04 PM PDT           10.40            621         0      Not Applicable
  05/02/2025 05 PM PDT           10.39            615         -      Not Applicable
  05/02/2025 06 PM PDT           10.39            615         0      Not Applicable
  05/02/2025 07 PM PDT           10.39            615         0      Not Applicable
  05/02/2025 08 PM PDT           10.39            615         0      Not Applicable
  05/02/2025 09 PM PDT           10.39            615         0      Not Applicable
  05/02/2025 10 PM PDT           10.39            615         0      Not Applicable
  05/02/2025 11 PM PDT           10.39            615         0      Not Applicable
  05/03/2025 12 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 01 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 02 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 03 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 04 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 05 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 06 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 07 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 08 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 09 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 10 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 11 AM PDT           10.39            615         0      Not Applicable
  05/03/2025 12 PM PDT           10.39            615         0      Not Applicable
  05/03/2025 01 PM PDT           10.39            615         0      Not Applicable
  05/03/2025 02 PM PDT           10.39            615         0      Not Applicable
  05/03/2025 03 PM PDT           10.39            615         0      Not Applicable
  05/03/2025 04 PM PDT           10.39            615         0      Not Applicable
  05/03/2025 05 PM PDT           10.38            609         -      Not Applicable
  05/03/2025 06 PM PDT           10.38            609         0      Not Applicable
  05/03/2025 07 PM PDT           10.38            609         0      Not Applicable
  05/03/2025 08 PM PDT           10.38            609         0      Not Applicable
  05/03/2025 09 PM PDT           10.38            609         0      Not Applicable
  05/03/2025 10 PM PDT           10.38            609         0      Not Applicable
  05/03/2025 11 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 12 AM PDT           10.38            609         0      Not Applicable
  05/04/2025 01 AM PDT           10.37            603         -      Not Applicable
  05/04/2025 02 AM PDT           10.37            603         0      Not Applicable
  05/04/2025 03 AM PDT           10.37            603         0      Not Applicable
  05/04/2025 04 AM PDT           10.37            603         0      Not Applicable
  05/04/2025 05 AM PDT           10.37            603         0      Not Applicable
  05/04/2025 06 AM PDT           10.37            603         0      Not Applicable
  05/04/2025 07 AM PDT           10.37            603         0      Not Applicable
  05/04/2025 08 AM PDT           10.38            609         +      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/04/2025 09 AM PDT           10.39            615                Not Applicable
  05/04/2025 10 AM PDT           10.38            609         -      Not Applicable
  05/04/2025 11 AM PDT           10.38            609         0      Not Applicable
  05/04/2025 12 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 01 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 02 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 03 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 04 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 05 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 06 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 07 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 08 PM PDT           10.38            609         0      Not Applicable
  05/04/2025 09 PM PDT           10.37            603         -      Not Applicable
  05/04/2025 10 PM PDT           10.37            603         0      Not Applicable
  05/04/2025 11 PM PDT           10.36            598         -      Not Applicable
  05/05/2025 12 AM PDT           10.36            598         0      Not Applicable
  05/05/2025 01 AM PDT           10.35            592         -      Not Applicable
  05/05/2025 02 AM PDT           10.35            592         0      Not Applicable
  05/05/2025 03 AM PDT           10.34            586         -      Not Applicable
  05/05/2025 04 AM PDT           10.34            586         0      Not Applicable
  05/05/2025 05 AM PDT           10.33            581         -      Not Applicable
  05/05/2025 06 AM PDT           10.33            581         0      Not Applicable
  05/05/2025 07 AM PDT           10.32            575         -      Not Applicable
  05/05/2025 08 AM PDT           10.32            575         0      Not Applicable
  05/05/2025 09 AM PDT           10.31            569         -      Not Applicable
  05/05/2025 10 AM PDT           10.31            569         0      Not Applicable
  05/05/2025 11 AM PDT           10.31            569         0      Not Applicable
  05/05/2025 12 PM PDT           10.30            564         -      Not Applicable
  05/05/2025 01 PM PDT           10.30            564         0      Not Applicable
  05/05/2025 02 PM PDT           10.29            558         -      Not Applicable
  05/05/2025 03 PM PDT           10.29            558         0      Not Applicable
  05/05/2025 04 PM PDT           10.29            558         0      Not Applicable
  05/05/2025 05 PM PDT           10.28            553         -      Not Applicable
  05/05/2025 06 PM PDT           10.28            553         0      Not Applicable
  05/05/2025 07 PM PDT           10.28            553         0      Not Applicable
  05/05/2025 08 PM PDT           10.28            553         0      Not Applicable
  05/05/2025 09 PM PDT           10.27            547         -      Not Applicable
  05/05/2025 10 PM PDT           10.27            547         0      Not Applicable
  05/05/2025 11 PM PDT           10.27            547         0      Not Applicable
  05/06/2025 12 AM PDT           10.27            547         0      Not Applicable
  05/06/2025 01 AM PDT           10.26            542         -      Not Applicable
  05/06/2025 02 AM PDT           10.26            542         0      Not Applicable
  05/06/2025 03 AM PDT           10.26            542         0      Not Applicable
  05/06/2025 04 AM PDT           10.26            542         0      Not Applicable
  05/06/2025 05 AM PDT           10.26            542         0      Not Applicable
  05/06/2025 06 AM PDT           10.26            542         0      Not Applicable
  05/06/2025 07 AM PDT           10.25            536         -      Not Applicable
  05/06/2025 08 AM PDT           10.25            536         0      Not Applicable
  05/06/2025 09 AM PDT           10.25            536         0      Not Applicable
  05/06/2025 10 AM PDT           10.25            536         0      Not Applicable
  05/06/2025 11 AM PDT           10.25            536         0      Not Applicable
  05/06/2025 12 PM PDT           10.26            542         +      Not Applicable
  05/06/2025 01 PM PDT           10.26            542         0      Not Applicable
  05/06/2025 02 PM PDT           10.26            542         0      Not Applicable
  05/06/2025 03 PM PDT           10.26            542         0      Not Applicable
  05/06/2025 04 PM PDT           10.26            542         0      Not Applicable
  05/06/2025 05 PM PDT           10.26            542         0      Not Applicable
  05/06/2025 06 PM PDT           10.27            547         +      Not Applicable
  05/06/2025 07 PM PDT           10.27            547         0      Not Applicable
  05/06/2025 08 PM PDT           10.27            547         0      Not Applicable
  05/06/2025 09 PM PDT           10.27            547         0      Not Applicable
  05/06/2025 10 PM PDT           10.27            547         0      Not Applicable
  05/06/2025 11 PM PDT           10.28            553         +      Not Applicable
  05/07/2025 12 AM PDT           10.28            553         0      Not Applicable
  05/07/2025 01 AM PDT           10.28            553         0      Not Applicable
  05/07/2025 02 AM PDT           10.28            553         0      Not Applicable
  05/07/2025 03 AM PDT           10.29            558         +      Not Applicable
  05/07/2025 04 AM PDT           10.29            558         0      Not Applicable
  05/07/2025 05 AM PDT           10.29            558         0      Not Applicable
  05/07/2025 06 AM PDT           10.30            564         +      Not Applicable
  05/07/2025 07 AM PDT           10.30            564         0      Not Applicable
  05/07/2025 08 AM PDT           10.30            564         0      Not Applicable
  05/07/2025 09 AM PDT           10.31            569         +      Not Applicable
  05/07/2025 10 AM PDT           10.31            569         0      Not Applicable
  05/07/2025 11 AM PDT           10.32            575         +      Not Applicable
  05/07/2025 12 PM PDT           10.32            575         0      Not Applicable
  05/07/2025 01 PM PDT           10.33            581         +      Not Applicable
  05/07/2025 02 PM PDT           10.33            581         0      Not Applicable
  05/07/2025 03 PM PDT           10.34            586         +      Not Applicable
  05/07/2025 04 PM PDT           10.34            586         0      Not Applicable
  05/07/2025 05 PM PDT           10.35            592         +      Not Applicable
  05/07/2025 06 PM PDT           10.35            592         0      Not Applicable
  05/07/2025 07 PM PDT           10.36            598         +      Not Applicable
  05/07/2025 08 PM PDT           10.37            603         +      Not Applicable
  05/07/2025 09 PM PDT           10.37            603         0      Not Applicable
  05/07/2025 10 PM PDT           10.38            609         +      Not Applicable
  05/07/2025 11 PM PDT           10.38            609         0      Not Applicable
  05/08/2025 12 AM PDT           10.39            615         +      Not Applicable
  05/08/2025 01 AM PDT           10.40            621         +      Not Applicable
  05/08/2025 02 AM PDT           10.40            621         0      Not Applicable
  05/08/2025 03 AM PDT           10.41            627         +      Not Applicable
  05/08/2025 04 AM PDT           10.42            633         +      Not Applicable
  05/08/2025 05 AM PDT           10.43            638         +      Not Applicable
  05/08/2025 06 AM PDT           10.43            638         0      Not Applicable
  05/08/2025 07 AM PDT           10.44            644         +      Not Applicable
  05/08/2025 08 AM PDT           10.45            650         +      Not Applicable
  05/08/2025 09 AM PDT           10.46            656         +      Not Applicable
  05/08/2025 10 AM PDT           10.46            656         0      Not Applicable
  05/08/2025 11 AM PDT           10.47            662         +      Not Applicable
  05/08/2025 12 PM PDT           10.48            669         +      Not Applicable
  05/08/2025 01 PM PDT           10.49            675         +      Not Applicable
  05/08/2025 02 PM PDT           10.49            675         0      Not Applicable
  05/08/2025 03 PM PDT           10.50            681         +      Not Applicable
  05/08/2025 04 PM PDT           10.51            687         +      Not Applicable
  05/08/2025 05 PM PDT           10.52            693         +      Not Applicable
  05/08/2025 06 PM PDT           10.53            699         +      Not Applicable
  05/08/2025 07 PM PDT           10.53            699         0      Not Applicable
  05/08/2025 08 PM PDT           10.54            706         +      Not Applicable
  05/08/2025 09 PM PDT           10.55            712         +      Not Applicable
  05/08/2025 10 PM PDT           10.55            712         0      Not Applicable
  05/08/2025 11 PM PDT           10.56            718         +      Not Applicable
  05/09/2025 12 AM PDT           10.56            718         0      Not Applicable
  05/09/2025 01 AM PDT           10.57            725         +      Not Applicable
  05/09/2025 02 AM PDT           10.57            725         0      Not Applicable
  05/09/2025 03 AM PDT           10.58            731         +      Not Applicable
  05/09/2025 04 AM PDT           10.58            731         0      Not Applicable
  05/09/2025 05 AM PDT           10.58            731         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.