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: Apr 22 2026 at 7:22 AM PDTNext Issuance: Apr 23 2026 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:  04/22/2026 at 07:24 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/22/2026 at 05:00 AM PDT
# Maximum Observed Stage:                       10.66 Feet
# Maximum Observed Flow:                        842 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/22/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       10.64 Feet
# Maximum Forecast Flow:                        829 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/17/2026 07 AM PDT           10.43            693                Not Applicable
  04/17/2026 08 AM PDT           10.42            687         -      Not Applicable
  04/17/2026 09 AM PDT           10.42            687         0      Not Applicable
  04/17/2026 10 AM PDT           10.42            687         0      Not Applicable
  04/17/2026 11 AM PDT           10.42            687         0      Not Applicable
  04/17/2026 12 PM PDT           10.42            687         0      Not Applicable
  04/17/2026 01 PM PDT           10.42            687         0      Not Applicable
  04/17/2026 02 PM PDT           10.41            681         -      Not Applicable
  04/17/2026 03 PM PDT           10.41            681         0      Not Applicable
  04/17/2026 04 PM PDT           10.41            681         0      Not Applicable
  04/17/2026 05 PM PDT           10.41            681         0      Not Applicable
  04/17/2026 06 PM PDT           10.41            681         0      Not Applicable
  04/17/2026 07 PM PDT           10.41            681         0      Not Applicable
  04/17/2026 08 PM PDT           10.40            675         -      Not Applicable
  04/17/2026 09 PM PDT           10.40            675         0      Not Applicable
  04/17/2026 10 PM PDT           10.40            675         0      Not Applicable
  04/17/2026 11 PM PDT           10.40            675         0      Not Applicable
  04/18/2026 12 AM PDT           10.40            675         0      Not Applicable
  04/18/2026 01 AM PDT           10.39            669         -      Not Applicable
  04/18/2026 02 AM PDT           10.39            669         0      Not Applicable
  04/18/2026 03 AM PDT           10.39            669         0      Not Applicable
  04/18/2026 04 AM PDT           10.39            669         0      Not Applicable
  04/18/2026 05 AM PDT           10.39            669         0      Not Applicable
  04/18/2026 06 AM PDT           10.38            663         -      Not Applicable
  04/18/2026 07 AM PDT           10.38            663         0      Not Applicable
  04/18/2026 08 AM PDT           10.38            663         0      Not Applicable
  04/18/2026 09 AM PDT           10.38            663         0      Not Applicable
  04/18/2026 10 AM PDT           10.38            663         0      Not Applicable
  04/18/2026 11 AM PDT           10.38            663         0      Not Applicable
  04/18/2026 12 PM PDT           10.38            663         0      Not Applicable
  04/18/2026 01 PM PDT           10.37            656         -      Not Applicable
  04/18/2026 02 PM PDT           10.37            656         0      Not Applicable
  04/18/2026 03 PM PDT           10.37            656         0      Not Applicable
  04/18/2026 04 PM PDT           10.36            650         -      Not Applicable
  04/18/2026 05 PM PDT           10.36            650         0      Not Applicable
  04/18/2026 06 PM PDT           10.36            650         0      Not Applicable
  04/18/2026 07 PM PDT           10.36            650         0      Not Applicable
  04/18/2026 08 PM PDT           10.35            644         -      Not Applicable
  04/18/2026 09 PM PDT           10.35            644         0      Not Applicable
  04/18/2026 10 PM PDT           10.35            644         0      Not Applicable
  04/18/2026 11 PM PDT           10.35            644         0      Not Applicable
  04/19/2026 12 AM PDT           10.35            644         0      Not Applicable
  04/19/2026 01 AM PDT           10.35            644         0      Not Applicable
  04/19/2026 02 AM PDT           10.35            644         0      Not Applicable
  04/19/2026 03 AM PDT           10.35            644         0      Not Applicable
  04/19/2026 04 AM PDT           10.34            638         -      Not Applicable
  04/19/2026 05 AM PDT           10.34            638         0      Not Applicable
  04/19/2026 06 AM PDT           10.34            638         0      Not Applicable
  04/19/2026 07 AM PDT           10.34            638         0      Not Applicable
  04/19/2026 08 AM PDT           10.34            638         0      Not Applicable
  04/19/2026 09 AM PDT           10.34            638         0      Not Applicable
  04/19/2026 10 AM PDT           10.34            638         0      Not Applicable
  04/19/2026 11 AM PDT           10.34            638         0      Not Applicable
  04/19/2026 12 PM PDT           10.34            638         0      Not Applicable
  04/19/2026 01 PM PDT           10.34            638         0      Not Applicable
  04/19/2026 02 PM PDT           10.33            632         -      Not Applicable
  04/19/2026 03 PM PDT           10.33            632         0      Not Applicable
  04/19/2026 04 PM PDT           10.33            632         0      Not Applicable
  04/19/2026 05 PM PDT           10.33            632         0      Not Applicable
  04/19/2026 06 PM PDT           10.32            627         -      Not Applicable
  04/19/2026 07 PM PDT           10.32            627         0      Not Applicable
  04/19/2026 08 PM PDT           10.32            627         0      Not Applicable
  04/19/2026 09 PM PDT           10.32            627         0      Not Applicable
  04/19/2026 10 PM PDT           10.32            627         0      Not Applicable
  04/19/2026 11 PM PDT           10.32            627         0      Not Applicable
  04/20/2026 12 AM PDT           10.31            621         -      Not Applicable
  04/20/2026 01 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 02 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 03 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 04 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 05 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 06 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 07 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 08 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 09 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 10 AM PDT           10.31            621         0      Not Applicable
  04/20/2026 11 AM PDT           10.30            615         -      Not Applicable
  04/20/2026 12 PM PDT           10.30            615         0      Not Applicable
  04/20/2026 01 PM PDT           10.30            615         0      Not Applicable
  04/20/2026 02 PM PDT           10.30            615         0      Not Applicable
  04/20/2026 03 PM PDT           10.30            615         0      Not Applicable
  04/20/2026 04 PM PDT           10.30            615         0      Not Applicable
  04/20/2026 05 PM PDT           10.30            615         0      Not Applicable
  04/20/2026 06 PM PDT           10.30            615         0      Not Applicable
  04/20/2026 07 PM PDT           10.30            615         0      Not Applicable
  04/20/2026 08 PM PDT           10.31            621         +      Not Applicable
  04/20/2026 09 PM PDT           10.31            621         0      Not Applicable
  04/20/2026 10 PM PDT           10.33            632         +      Not Applicable
  04/20/2026 11 PM PDT           10.33            632         0      Not Applicable
  04/21/2026 12 AM PDT           10.35            644         +      Not Applicable
  04/21/2026 01 AM PDT           10.36            650         +      Not Applicable
  04/21/2026 02 AM PDT           10.37            656         +      Not Applicable
  04/21/2026 03 AM PDT           10.38            663         +      Not Applicable
  04/21/2026 04 AM PDT           10.41            681         +      Not Applicable
  04/21/2026 05 AM PDT           10.42            687         +      Not Applicable
  04/21/2026 06 AM PDT           10.45            705         +      Not Applicable
  04/21/2026 07 AM PDT           10.46            712         +      Not Applicable
  04/21/2026 08 AM PDT           10.47            718         +      Not Applicable
  04/21/2026 09 AM PDT           10.49            731         +      Not Applicable
  04/21/2026 10 AM PDT           10.50            737         +      Not Applicable
  04/21/2026 11 AM PDT           10.51            743         +      Not Applicable
  04/21/2026 12 PM PDT           10.52            750         +      Not Applicable
  04/21/2026 01 PM PDT           10.53            756         +      Not Applicable
  04/21/2026 02 PM PDT           10.55            769         +      Not Applicable
  04/21/2026 03 PM PDT           10.56            775         +      Not Applicable
  04/21/2026 04 PM PDT           10.57            782         +      Not Applicable
  04/21/2026 05 PM PDT           10.58            789         +      Not Applicable
  04/21/2026 06 PM PDT           10.59            795         +      Not Applicable
  04/21/2026 07 PM PDT           10.62            815         +      Not Applicable
  04/21/2026 08 PM PDT           10.63            822         +      Not Applicable
  04/21/2026 09 PM PDT           10.63            822         0      Not Applicable
  04/21/2026 10 PM PDT           10.64            829         +      Not Applicable
  04/21/2026 11 PM PDT           10.64            829         0      Not Applicable
  04/22/2026 12 AM PDT           10.64            829         0      Not Applicable
  04/22/2026 01 AM PDT           10.64            829         0      Not Applicable
  04/22/2026 02 AM PDT           10.64            829         0      Not Applicable
  04/22/2026 03 AM PDT           10.65            835         +      Not Applicable
  04/22/2026 04 AM PDT           10.65            835         0      Not Applicable
  04/22/2026 05 AM PDT           10.66            842         +      Not Applicable
  04/22/2026 06 AM PDT           10.65            835         -      Not Applicable
  04/22/2026 07 AM PDT           10.64            829         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/22/2026 08 AM PDT           10.64            829                Not Applicable
  04/22/2026 09 AM PDT           10.63            822         -      Not Applicable
  04/22/2026 10 AM PDT           10.63            822         0      Not Applicable
  04/22/2026 11 AM PDT           10.62            815         -      Not Applicable
  04/22/2026 12 PM PDT           10.59            795         -      Not Applicable
  04/22/2026 01 PM PDT           10.57            782         -      Not Applicable
  04/22/2026 02 PM PDT           10.54            762         -      Not Applicable
  04/22/2026 03 PM PDT           10.51            743         -      Not Applicable
  04/22/2026 04 PM PDT           10.48            724         -      Not Applicable
  04/22/2026 05 PM PDT           10.45            705         -      Not Applicable
  04/22/2026 06 PM PDT           10.41            681         -      Not Applicable
  04/22/2026 07 PM PDT           10.38            663         -      Not Applicable
  04/22/2026 08 PM PDT           10.34            638         -      Not Applicable
  04/22/2026 09 PM PDT           10.31            621         -      Not Applicable
  04/22/2026 10 PM PDT           10.27            598         -      Not Applicable
  04/22/2026 11 PM PDT           10.23            575         -      Not Applicable
  04/23/2026 12 AM PDT           10.21            564         -      Not Applicable
  04/23/2026 01 AM PDT           10.18            548         -      Not Applicable
  04/23/2026 02 AM PDT           10.15            531         -      Not Applicable
  04/23/2026 03 AM PDT           10.12            515         -      Not Applicable
  04/23/2026 04 AM PDT           10.10            505         -      Not Applicable
  04/23/2026 05 AM PDT           10.07            489         -      Not Applicable
  04/23/2026 06 AM PDT           10.06            484         -      Not Applicable
  04/23/2026 07 AM PDT           10.04            474         -      Not Applicable
  04/23/2026 08 AM PDT           10.03            469         -      Not Applicable
  04/23/2026 09 AM PDT           10.01            459         -      Not Applicable
  04/23/2026 10 AM PDT           10.00            454         -      Not Applicable
  04/23/2026 11 AM PDT            9.98            444         -      Not Applicable
  04/23/2026 12 PM PDT            9.97            439         -      Not Applicable
  04/23/2026 01 PM PDT            9.96            434         -      Not Applicable
  04/23/2026 02 PM PDT            9.96            434         0      Not Applicable
  04/23/2026 03 PM PDT            9.95            429         -      Not Applicable
  04/23/2026 04 PM PDT            9.94            425         -      Not Applicable
  04/23/2026 05 PM PDT            9.92            415         -      Not Applicable
  04/23/2026 06 PM PDT            9.92            415         0      Not Applicable
  04/23/2026 07 PM PDT            9.91            411         -      Not Applicable
  04/23/2026 08 PM PDT            9.91            411         0      Not Applicable
  04/23/2026 09 PM PDT            9.90            406         -      Not Applicable
  04/23/2026 10 PM PDT            9.90            406         0      Not Applicable
  04/23/2026 11 PM PDT            9.90            406         0      Not Applicable
  04/24/2026 12 AM PDT            9.90            406         0      Not Applicable
  04/24/2026 01 AM PDT            9.90            406         0      Not Applicable
  04/24/2026 02 AM PDT            9.90            406         0      Not Applicable
  04/24/2026 03 AM PDT            9.91            411         +      Not Applicable
  04/24/2026 04 AM PDT            9.91            411         0      Not Applicable
  04/24/2026 05 AM PDT            9.91            411         0      Not Applicable
  04/24/2026 06 AM PDT            9.91            411         0      Not Applicable
  04/24/2026 07 AM PDT            9.92            415         +      Not Applicable
  04/24/2026 08 AM PDT            9.92            415         0      Not Applicable
  04/24/2026 09 AM PDT            9.92            415         0      Not Applicable
  04/24/2026 10 AM PDT            9.92            415         0      Not Applicable
  04/24/2026 11 AM PDT            9.92            415         0      Not Applicable
  04/24/2026 12 PM PDT            9.92            415         0      Not Applicable
  04/24/2026 01 PM PDT            9.91            411         -      Not Applicable
  04/24/2026 02 PM PDT            9.90            406         -      Not Applicable
  04/24/2026 03 PM PDT            9.90            406         0      Not Applicable
  04/24/2026 04 PM PDT            9.89            401         -      Not Applicable
  04/24/2026 05 PM PDT            9.88            396         -      Not Applicable
  04/24/2026 06 PM PDT            9.87            392         -      Not Applicable
  04/24/2026 07 PM PDT            9.86            387         -      Not Applicable
  04/24/2026 08 PM PDT            9.84            378         -      Not Applicable
  04/24/2026 09 PM PDT            9.83            373         -      Not Applicable
  04/24/2026 10 PM PDT            9.82            369         -      Not Applicable
  04/24/2026 11 PM PDT            9.80            360         -      Not Applicable
  04/25/2026 12 AM PDT            9.79            356         -      Not Applicable
  04/25/2026 01 AM PDT            9.78            351         -      Not Applicable
  04/25/2026 02 AM PDT            9.77            347         -      Not Applicable
  04/25/2026 03 AM PDT            9.76            343         -      Not Applicable
  04/25/2026 04 AM PDT            9.75            338         -      Not Applicable
  04/25/2026 05 AM PDT            9.73            330         -      Not Applicable
  04/25/2026 06 AM PDT            9.72            326         -      Not Applicable
  04/25/2026 07 AM PDT            9.71            322         -      Not Applicable
  04/25/2026 08 AM PDT            9.70            318         -      Not Applicable
  04/25/2026 09 AM PDT            9.69            314         -      Not Applicable
  04/25/2026 10 AM PDT            9.68            310         -      Not Applicable
  04/25/2026 11 AM PDT            9.67            305         -      Not Applicable
  04/25/2026 12 PM PDT            9.66            301         -      Not Applicable
  04/25/2026 01 PM PDT            9.65            297         -      Not Applicable
  04/25/2026 02 PM PDT            9.65            297         0      Not Applicable
  04/25/2026 03 PM PDT            9.64            293         -      Not Applicable
  04/25/2026 04 PM PDT            9.63            289         -      Not Applicable
  04/25/2026 05 PM PDT            9.62            286         -      Not Applicable
  04/25/2026 06 PM PDT            9.62            286         0      Not Applicable
  04/25/2026 07 PM PDT            9.63            289         +      Not Applicable
  04/25/2026 08 PM PDT            9.63            289         0      Not Applicable
  04/25/2026 09 PM PDT            9.63            289         0      Not Applicable
  04/25/2026 10 PM PDT            9.64            293         +      Not Applicable
  04/25/2026 11 PM PDT            9.64            293         0      Not Applicable
  04/26/2026 12 AM PDT            9.65            297         +      Not Applicable
  04/26/2026 01 AM PDT            9.67            305         +      Not Applicable
  04/26/2026 02 AM PDT            9.68            310         +      Not Applicable
  04/26/2026 03 AM PDT            9.70            318         +      Not Applicable
  04/26/2026 04 AM PDT            9.71            322         +      Not Applicable
  04/26/2026 05 AM PDT            9.73            330         +      Not Applicable
  04/26/2026 06 AM PDT            9.76            343         +      Not Applicable
  04/26/2026 07 AM PDT            9.79            356         +      Not Applicable
  04/26/2026 08 AM PDT            9.82            369         +      Not Applicable
  04/26/2026 09 AM PDT            9.85            382         +      Not Applicable
  04/26/2026 10 AM PDT            9.88            396         +      Not Applicable
  04/26/2026 11 AM PDT            9.90            406         +      Not Applicable
  04/26/2026 12 PM PDT            9.91            411         +      Not Applicable
  04/26/2026 01 PM PDT            9.92            415         +      Not Applicable
  04/26/2026 02 PM PDT            9.93            420         +      Not Applicable
  04/26/2026 03 PM PDT            9.94            425         +      Not Applicable
  04/26/2026 04 PM PDT            9.95            429         +      Not Applicable
  04/26/2026 05 PM PDT            9.95            429         0      Not Applicable
  04/26/2026 06 PM PDT            9.94            425         -      Not Applicable
  04/26/2026 07 PM PDT            9.93            420         -      Not Applicable
  04/26/2026 08 PM PDT            9.91            411         -      Not Applicable
  04/26/2026 09 PM PDT            9.90            406         -      Not Applicable
  04/26/2026 10 PM PDT            9.88            396         -      Not Applicable
  04/26/2026 11 PM PDT            9.87            392         -      Not Applicable
  04/27/2026 12 AM PDT            9.85            382         -      Not Applicable
  04/27/2026 01 AM PDT            9.83            373         -      Not Applicable
  04/27/2026 02 AM PDT            9.81            364         -      Not Applicable
  04/27/2026 03 AM PDT            9.79            356         -      Not Applicable
  04/27/2026 04 AM PDT            9.77            347         -      Not Applicable
  04/27/2026 05 AM PDT            9.75            338         -      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.