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 19 2026 at 8:05 AM PDTNext Issuance: Apr 20 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:  04/19/2026 at 08:07 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/14/2026 at 08:00 AM PDT
# Maximum Observed Stage:                       10.74 Feet
# Maximum Observed Flow:                        898 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/22/2026 at 11:00 AM PDT
# Maximum Forecast Stage:                       11.31 Feet
# Maximum Forecast Flow:                        1308 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/14/2026 08 AM PDT           10.74            898                Not Applicable
  04/14/2026 09 AM PDT           10.73            891         -      Not Applicable
  04/14/2026 10 AM PDT           10.73            891         0      Not Applicable
  04/14/2026 11 AM PDT           10.72            884         -      Not Applicable
  04/14/2026 12 PM PDT           10.71            877         -      Not Applicable
  04/14/2026 01 PM PDT           10.70            870         -      Not Applicable
  04/14/2026 02 PM PDT           10.70            870         0      Not Applicable
  04/14/2026 03 PM PDT           10.69            863         -      Not Applicable
  04/14/2026 04 PM PDT           10.69            863         0      Not Applicable
  04/14/2026 05 PM PDT           10.68            856         -      Not Applicable
  04/14/2026 06 PM PDT           10.67            849         -      Not Applicable
  04/14/2026 07 PM PDT           10.67            849         0      Not Applicable
  04/14/2026 08 PM PDT           10.66            842         -      Not Applicable
  04/14/2026 09 PM PDT           10.66            842         0      Not Applicable
  04/14/2026 10 PM PDT           10.65            835         -      Not Applicable
  04/14/2026 11 PM PDT           10.64            829         -      Not Applicable
  04/15/2026 12 AM PDT           10.64            829         0      Not Applicable
  04/15/2026 01 AM PDT           10.63            822         -      Not Applicable
  04/15/2026 02 AM PDT           10.62            815         -      Not Applicable
  04/15/2026 03 AM PDT           10.61            809         -      Not Applicable
  04/15/2026 04 AM PDT           10.61            809         0      Not Applicable
  04/15/2026 05 AM PDT           10.61            809         0      Not Applicable
  04/15/2026 06 AM PDT           10.60            802         -      Not Applicable
  04/15/2026 07 AM PDT           10.60            802         0      Not Applicable
  04/15/2026 08 AM PDT           10.60            802         0      Not Applicable
  04/15/2026 09 AM PDT           10.59            795         -      Not Applicable
  04/15/2026 10 AM PDT           10.59            795         0      Not Applicable
  04/15/2026 11 AM PDT           10.59            795         0      Not Applicable
  04/15/2026 12 PM PDT           10.57            782         -      Not Applicable
  04/15/2026 01 PM PDT           10.57            782         0      Not Applicable
  04/15/2026 02 PM PDT           10.56            775         -      Not Applicable
  04/15/2026 03 PM PDT           10.56            775         0      Not Applicable
  04/15/2026 04 PM PDT           10.55            769         -      Not Applicable
  04/15/2026 05 PM PDT           10.55            769         0      Not Applicable
  04/15/2026 06 PM PDT           10.55            769         0      Not Applicable
  04/15/2026 07 PM PDT           10.54            762         -      Not Applicable
  04/15/2026 08 PM PDT           10.54            762         0      Not Applicable
  04/15/2026 09 PM PDT           10.55            769         +      Not Applicable
  04/15/2026 10 PM PDT           10.55            769         0      Not Applicable
  04/15/2026 11 PM PDT           10.55            769         0      Not Applicable
  04/16/2026 12 AM PDT           10.55            769         0      Not Applicable
  04/16/2026 01 AM PDT           10.55            769         0      Not Applicable
  04/16/2026 02 AM PDT           10.55            769         0      Not Applicable
  04/16/2026 03 AM PDT           10.54            762         -      Not Applicable
  04/16/2026 04 AM PDT           10.53            756         -      Not Applicable
  04/16/2026 05 AM PDT           10.53            756         0      Not Applicable
  04/16/2026 06 AM PDT           10.52            750         -      Not Applicable
  04/16/2026 07 AM PDT           10.51            743         -      Not Applicable
  04/16/2026 08 AM PDT           10.51            743         0      Not Applicable
  04/16/2026 09 AM PDT           10.50            737         -      Not Applicable
  04/16/2026 10 AM PDT           10.50            737         0      Not Applicable
  04/16/2026 11 AM PDT           10.50            737         0      Not Applicable
  04/16/2026 12 PM PDT           10.49            731         -      Not Applicable
  04/16/2026 01 PM PDT           10.49            731         0      Not Applicable
  04/16/2026 02 PM PDT           10.48            724         -      Not Applicable
  04/16/2026 03 PM PDT           10.48            724         0      Not Applicable
  04/16/2026 04 PM PDT           10.48            724         0      Not Applicable
  04/16/2026 05 PM PDT           10.47            718         -      Not Applicable
  04/16/2026 06 PM PDT           10.47            718         0      Not Applicable
  04/16/2026 07 PM PDT           10.46            712         -      Not Applicable
  04/16/2026 08 PM PDT           10.46            712         0      Not Applicable
  04/16/2026 09 PM PDT           10.46            712         0      Not Applicable
  04/16/2026 10 PM PDT           10.45            705         -      Not Applicable
  04/16/2026 11 PM PDT           10.45            705         0      Not Applicable
  04/17/2026 12 AM PDT           10.45            705         0      Not Applicable
  04/17/2026 01 AM PDT           10.45            705         0      Not Applicable
  04/17/2026 02 AM PDT           10.44            699         -      Not Applicable
  04/17/2026 03 AM PDT           10.44            699         0      Not Applicable
  04/17/2026 04 AM PDT           10.44            699         0      Not Applicable
  04/17/2026 05 AM PDT           10.43            693         -      Not Applicable
  04/17/2026 06 AM PDT           10.43            693         0      Not Applicable
  04/17/2026 07 AM PDT           10.43            693         0      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
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/19/2026 08 AM PDT           10.34            638                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           10.33            632         -      Not Applicable
  04/19/2026 02 PM PDT           10.33            632         0      Not Applicable
  04/19/2026 03 PM PDT           10.32            627         -      Not Applicable
  04/19/2026 04 PM PDT           10.32            627         0      Not Applicable
  04/19/2026 05 PM PDT           10.31            621         -      Not Applicable
  04/19/2026 06 PM PDT           10.31            621         0      Not Applicable
  04/19/2026 07 PM PDT           10.31            621         0      Not Applicable
  04/19/2026 08 PM PDT           10.30            615         -      Not Applicable
  04/19/2026 09 PM PDT           10.30            615         0      Not Applicable
  04/19/2026 10 PM PDT           10.30            615         0      Not Applicable
  04/19/2026 11 PM PDT           10.29            609         -      Not Applicable
  04/20/2026 12 AM PDT           10.29            609         0      Not Applicable
  04/20/2026 01 AM PDT           10.29            609         0      Not Applicable
  04/20/2026 02 AM PDT           10.28            603         -      Not Applicable
  04/20/2026 03 AM PDT           10.28            603         0      Not Applicable
  04/20/2026 04 AM PDT           10.28            603         0      Not Applicable
  04/20/2026 05 AM PDT           10.27            598         -      Not Applicable
  04/20/2026 06 AM PDT           10.27            598         0      Not Applicable
  04/20/2026 07 AM PDT           10.27            598         0      Not Applicable
  04/20/2026 08 AM PDT           10.26            592         -      Not Applicable
  04/20/2026 09 AM PDT           10.26            592         0      Not Applicable
  04/20/2026 10 AM PDT           10.26            592         0      Not Applicable
  04/20/2026 11 AM PDT           10.26            592         0      Not Applicable
  04/20/2026 12 PM PDT           10.25            586         -      Not Applicable
  04/20/2026 01 PM PDT           10.25            586         0      Not Applicable
  04/20/2026 02 PM PDT           10.25            586         0      Not Applicable
  04/20/2026 03 PM PDT           10.25            586         0      Not Applicable
  04/20/2026 04 PM PDT           10.25            586         0      Not Applicable
  04/20/2026 05 PM PDT           10.25            586         0      Not Applicable
  04/20/2026 06 PM PDT           10.25            586         0      Not Applicable
  04/20/2026 07 PM PDT           10.26            592         +      Not Applicable
  04/20/2026 08 PM PDT           10.27            598         +      Not Applicable
  04/20/2026 09 PM PDT           10.27            598         0      Not Applicable
  04/20/2026 10 PM PDT           10.28            603         +      Not Applicable
  04/20/2026 11 PM PDT           10.29            609         +      Not Applicable
  04/21/2026 12 AM PDT           10.31            621         +      Not Applicable
  04/21/2026 01 AM PDT           10.33            632         +      Not Applicable
  04/21/2026 02 AM PDT           10.35            644         +      Not Applicable
  04/21/2026 03 AM PDT           10.37            656         +      Not Applicable
  04/21/2026 04 AM PDT           10.39            669         +      Not Applicable
  04/21/2026 05 AM PDT           10.42            687         +      Not Applicable
  04/21/2026 06 AM PDT           10.46            712         +      Not Applicable
  04/21/2026 07 AM PDT           10.51            743         +      Not Applicable
  04/21/2026 08 AM PDT           10.55            769         +      Not Applicable
  04/21/2026 09 AM PDT           10.59            795         +      Not Applicable
  04/21/2026 10 AM PDT           10.63            822         +      Not Applicable
  04/21/2026 11 AM PDT           10.68            856         +      Not Applicable
  04/21/2026 12 PM PDT           10.72            884         +      Not Applicable
  04/21/2026 01 PM PDT           10.77            919         +      Not Applicable
  04/21/2026 02 PM PDT           10.81            948         +      Not Applicable
  04/21/2026 03 PM PDT           10.86            984         +      Not Applicable
  04/21/2026 04 PM PDT           10.90           1014         +      Not Applicable
  04/21/2026 05 PM PDT           10.94           1042         +      Not Applicable
  04/21/2026 06 PM PDT           10.97           1063         +      Not Applicable
  04/21/2026 07 PM PDT           11.01           1091         +      Not Applicable
  04/21/2026 08 PM PDT           11.04           1112         +      Not Applicable
  04/21/2026 09 PM PDT           11.08           1141         +      Not Applicable
  04/21/2026 10 PM PDT           11.11           1163         +      Not Applicable
  04/21/2026 11 PM PDT           11.14           1185         +      Not Applicable
  04/22/2026 12 AM PDT           11.16           1200         +      Not Applicable
  04/22/2026 01 AM PDT           11.18           1215         +      Not Applicable
  04/22/2026 02 AM PDT           11.19           1222         +      Not Applicable
  04/22/2026 03 AM PDT           11.21           1237         +      Not Applicable
  04/22/2026 04 AM PDT           11.23           1251         +      Not Applicable
  04/22/2026 05 AM PDT           11.25           1265         +      Not Applicable
  04/22/2026 06 AM PDT           11.26           1272         +      Not Applicable
  04/22/2026 07 AM PDT           11.27           1279         +      Not Applicable
  04/22/2026 08 AM PDT           11.28           1287         +      Not Applicable
  04/22/2026 09 AM PDT           11.29           1294         +      Not Applicable
  04/22/2026 10 AM PDT           11.30           1301         +      Not Applicable
  04/22/2026 11 AM PDT           11.31           1308         +      Not Applicable
  04/22/2026 12 PM PDT           11.31           1308         0      Not Applicable
  04/22/2026 01 PM PDT           11.31           1308         0      Not Applicable
  04/22/2026 02 PM PDT           11.31           1308         0      Not Applicable
  04/22/2026 03 PM PDT           11.31           1308         0      Not Applicable
  04/22/2026 04 PM PDT           11.31           1308         0      Not Applicable
  04/22/2026 05 PM PDT           11.31           1308         0      Not Applicable
  04/22/2026 06 PM PDT           11.29           1294         -      Not Applicable
  04/22/2026 07 PM PDT           11.28           1287         -      Not Applicable
  04/22/2026 08 PM PDT           11.26           1272         -      Not Applicable
  04/22/2026 09 PM PDT           11.25           1265         -      Not Applicable
  04/22/2026 10 PM PDT           11.23           1251         -      Not Applicable
  04/22/2026 11 PM PDT           11.22           1244         -      Not Applicable
  04/23/2026 12 AM PDT           11.19           1222         -      Not Applicable
  04/23/2026 01 AM PDT           11.17           1207         -      Not Applicable
  04/23/2026 02 AM PDT           11.15           1193         -      Not Applicable
  04/23/2026 03 AM PDT           11.13           1178         -      Not Applicable
  04/23/2026 04 AM PDT           11.11           1163         -      Not Applicable
  04/23/2026 05 AM PDT           11.09           1149         -      Not Applicable
  04/23/2026 06 AM PDT           11.07           1134         -      Not Applicable
  04/23/2026 07 AM PDT           11.06           1127         -      Not Applicable
  04/23/2026 08 AM PDT           11.04           1112         -      Not Applicable
  04/23/2026 09 AM PDT           11.03           1105         -      Not Applicable
  04/23/2026 10 AM PDT           11.01           1091         -      Not Applicable
  04/23/2026 11 AM PDT           11.00           1084         -      Not Applicable
  04/23/2026 12 PM PDT           10.99           1077         -      Not Applicable
  04/23/2026 01 PM PDT           10.98           1070         -      Not Applicable
  04/23/2026 02 PM PDT           10.97           1063         -      Not Applicable
  04/23/2026 03 PM PDT           10.96           1056         -      Not Applicable
  04/23/2026 04 PM PDT           10.95           1048         -      Not Applicable
  04/23/2026 05 PM PDT           10.94           1042         -      Not Applicable
  04/23/2026 06 PM PDT           10.93           1035         -      Not Applicable
  04/23/2026 07 PM PDT           10.92           1028         -      Not Applicable
  04/23/2026 08 PM PDT           10.91           1021         -      Not Applicable
  04/23/2026 09 PM PDT           10.90           1014         -      Not Applicable
  04/23/2026 10 PM PDT           10.89           1006         -      Not Applicable
  04/23/2026 11 PM PDT           10.89           1006         0      Not Applicable
  04/24/2026 12 AM PDT           10.88            999         -      Not Applicable
  04/24/2026 01 AM PDT           10.88            999         0      Not Applicable
  04/24/2026 02 AM PDT           10.87            992         -      Not Applicable
  04/24/2026 03 AM PDT           10.87            992         0      Not Applicable
  04/24/2026 04 AM PDT           10.86            984         -      Not Applicable
  04/24/2026 05 AM PDT           10.86            984         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.