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

*** IMPORTANT ***  Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.
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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: Jun 14 2025 at 7:17 AM PDTNext Issuance: Jun 15 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:  06/14/2025 at 07:18 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/10/2025 at 03:00 PM PDT
# Maximum Observed Stage:                       10.02 Feet
# Maximum Observed Flow:                        419 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/16/2025 at 08:00 AM PDT
# Maximum Forecast Stage:                       9.97 Feet
# Maximum Forecast Flow:                        396 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/09/2025 07 AM PDT           10.00            410                Not Applicable
  06/09/2025 08 AM PDT           10.00            410         0      Not Applicable
  06/09/2025 09 AM PDT           10.01            415         +      Not Applicable
  06/09/2025 10 AM PDT           10.01            415         0      Not Applicable
  06/09/2025 11 AM PDT           10.01            415         0      Not Applicable
  06/09/2025 12 PM PDT           10.02            419         +      Not Applicable
  06/09/2025 01 PM PDT           10.02            419         0      Not Applicable
  06/09/2025 02 PM PDT           10.01            415         -      Not Applicable
  06/09/2025 03 PM PDT           10.01            415         0      Not Applicable
  06/09/2025 04 PM PDT           10.01            415         0      Not Applicable
  06/09/2025 05 PM PDT           10.01            415         0      Not Applicable
  06/09/2025 06 PM PDT           10.00            410         -      Not Applicable
  06/09/2025 07 PM PDT           10.00            410         0      Not Applicable
  06/09/2025 08 PM PDT           10.00            410         0      Not Applicable
  06/09/2025 09 PM PDT           10.00            410         0      Not Applicable
  06/09/2025 10 PM PDT           10.00            410         0      Not Applicable
  06/09/2025 11 PM PDT           10.00            410         0      Not Applicable
  06/10/2025 12 AM PDT           10.00            410         0      Not Applicable
  06/10/2025 01 AM PDT           10.00            410         0      Not Applicable
  06/10/2025 02 AM PDT           10.00            410         0      Not Applicable
  06/10/2025 03 AM PDT           10.00            410         0      Not Applicable
  06/10/2025 04 AM PDT           10.00            410         0      Not Applicable
  06/10/2025 05 AM PDT           10.00            410         0      Not Applicable
  06/10/2025 06 AM PDT           10.00            410         0      Not Applicable
  06/10/2025 07 AM PDT           10.01            415         +      Not Applicable
  06/10/2025 08 AM PDT           10.01            415         0      Not Applicable
  06/10/2025 09 AM PDT           10.01            415         0      Not Applicable
  06/10/2025 10 AM PDT           10.02            419         +      Not Applicable
  06/10/2025 11 AM PDT           10.02            419         0      Not Applicable
  06/10/2025 12 PM PDT           10.02            419         0      Not Applicable
  06/10/2025 01 PM PDT           10.02            419         0      Not Applicable
  06/10/2025 02 PM PDT           10.02            419         0      Not Applicable
  06/10/2025 03 PM PDT           10.02            419         0      Not Applicable
  06/10/2025 04 PM PDT           10.01            415         -      Not Applicable
  06/10/2025 05 PM PDT           10.01            415         0      Not Applicable
  06/10/2025 06 PM PDT           10.01            415         0      Not Applicable
  06/10/2025 07 PM PDT           10.00            410         -      Not Applicable
  06/10/2025 08 PM PDT            9.99            405         -      Not Applicable
  06/10/2025 09 PM PDT            9.99            405         0      Not Applicable
  06/10/2025 10 PM PDT            9.98            401         -      Not Applicable
  06/10/2025 11 PM PDT            9.98            401         0      Not Applicable
  06/11/2025 12 AM PDT            9.98            401         0      Not Applicable
  06/11/2025 01 AM PDT            9.98            401         0      Not Applicable
  06/11/2025 02 AM PDT            9.98            401         0      Not Applicable
  06/11/2025 03 AM PDT            9.98            401         0      Not Applicable
  06/11/2025 04 AM PDT            9.98            401         0      Not Applicable
  06/11/2025 05 AM PDT            9.98            401         0      Not Applicable
  06/11/2025 06 AM PDT            9.98            401         0      Not Applicable
  06/11/2025 07 AM PDT            9.99            405         +      Not Applicable
  06/11/2025 08 AM PDT            9.99            405         0      Not Applicable
  06/11/2025 09 AM PDT           10.00            410         +      Not Applicable
  06/11/2025 10 AM PDT           10.00            410         0      Not Applicable
  06/11/2025 11 AM PDT           10.00            410         0      Not Applicable
  06/11/2025 12 PM PDT           10.01            415         +      Not Applicable
  06/11/2025 01 PM PDT           10.01            415         0      Not Applicable
  06/11/2025 02 PM PDT           10.01            415         0      Not Applicable
  06/11/2025 03 PM PDT           10.00            410         -      Not Applicable
  06/11/2025 04 PM PDT           10.00            410         0      Not Applicable
  06/11/2025 05 PM PDT           10.00            410         0      Not Applicable
  06/11/2025 06 PM PDT           10.00            410         0      Not Applicable
  06/11/2025 07 PM PDT            9.99            405         -      Not Applicable
  06/11/2025 08 PM PDT            9.98            401         -      Not Applicable
  06/11/2025 09 PM PDT            9.98            401         0      Not Applicable
  06/11/2025 10 PM PDT            9.98            401         0      Not Applicable
  06/11/2025 11 PM PDT            9.98            401         0      Not Applicable
  06/12/2025 12 AM PDT            9.98            401         0      Not Applicable
  06/12/2025 01 AM PDT            9.98            401         0      Not Applicable
  06/12/2025 02 AM PDT            9.98            401         0      Not Applicable
  06/12/2025 03 AM PDT            9.98            401         0      Not Applicable
  06/12/2025 04 AM PDT            9.98            401         0      Not Applicable
  06/12/2025 05 AM PDT            9.98            401         0      Not Applicable
  06/12/2025 06 AM PDT            9.98            401         0      Not Applicable
  06/12/2025 07 AM PDT            9.98            401         0      Not Applicable
  06/12/2025 08 AM PDT            9.99            405         +      Not Applicable
  06/12/2025 09 AM PDT            9.99            405         0      Not Applicable
  06/12/2025 10 AM PDT           10.00            410         +      Not Applicable
  06/12/2025 11 AM PDT           10.00            410         0      Not Applicable
  06/12/2025 12 PM PDT           10.00            410         0      Not Applicable
  06/12/2025 01 PM PDT           10.00            410         0      Not Applicable
  06/12/2025 02 PM PDT           10.00            410         0      Not Applicable
  06/12/2025 03 PM PDT           10.00            410         0      Not Applicable
  06/12/2025 04 PM PDT           10.00            410         0      Not Applicable
  06/12/2025 05 PM PDT           10.00            410         0      Not Applicable
  06/12/2025 06 PM PDT            9.99            405         -      Not Applicable
  06/12/2025 07 PM PDT            9.99            405         0      Not Applicable
  06/12/2025 08 PM PDT            9.98            401         -      Not Applicable
  06/12/2025 09 PM PDT            9.98            401         0      Not Applicable
  06/12/2025 10 PM PDT            9.97            396         -      Not Applicable
  06/12/2025 11 PM PDT            9.97            396         0      Not Applicable
  06/13/2025 12 AM PDT            9.97            396         0      Not Applicable
  06/13/2025 01 AM PDT            9.98            401         +      Not Applicable
  06/13/2025 02 AM PDT            9.98            401         0      Not Applicable
  06/13/2025 03 AM PDT            9.98            401         0      Not Applicable
  06/13/2025 04 AM PDT            9.98            401         0      Not Applicable
  06/13/2025 05 AM PDT            9.98            401         0      Not Applicable
  06/13/2025 06 AM PDT            9.99            405         +      Not Applicable
  06/13/2025 07 AM PDT            9.99            405         0      Not Applicable
  06/13/2025 08 AM PDT            9.99            405         0      Not Applicable
  06/13/2025 09 AM PDT           10.00            410         +      Not Applicable
  06/13/2025 10 AM PDT           10.00            410         0      Not Applicable
  06/13/2025 11 AM PDT           10.00            410         0      Not Applicable
  06/13/2025 12 PM PDT           10.01            415         +      Not Applicable
  06/13/2025 01 PM PDT           10.01            415         0      Not Applicable
  06/13/2025 02 PM PDT           10.00            410         -      Not Applicable
  06/13/2025 03 PM PDT           10.00            410         0      Not Applicable
  06/13/2025 04 PM PDT           10.00            410         0      Not Applicable
  06/13/2025 05 PM PDT            9.99            405         -      Not Applicable
  06/13/2025 06 PM PDT            9.99            405         0      Not Applicable
  06/13/2025 07 PM PDT            9.98            401         -      Not Applicable
  06/13/2025 08 PM PDT            9.98            401         0      Not Applicable
  06/13/2025 09 PM PDT            9.97            396         -      Not Applicable
  06/13/2025 10 PM PDT            9.97            396         0      Not Applicable
  06/13/2025 11 PM PDT            9.97            396         0      Not Applicable
  06/14/2025 12 AM PDT            9.97            396         0      Not Applicable
  06/14/2025 01 AM PDT            9.97            396         0      Not Applicable
  06/14/2025 02 AM PDT            9.97            396         0      Not Applicable
  06/14/2025 03 AM PDT            9.97            396         0      Not Applicable
  06/14/2025 04 AM PDT            9.97            396         0      Not Applicable
  06/14/2025 05 AM PDT            9.97            396         0      Not Applicable
  06/14/2025 06 AM PDT            9.97            396         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/14/2025 07 AM PDT            9.96            391                Not Applicable
  06/14/2025 08 AM PDT            9.96            391         0      Not Applicable
  06/14/2025 09 AM PDT            9.96            391         0      Not Applicable
  06/14/2025 10 AM PDT            9.96            391         0      Not Applicable
  06/14/2025 11 AM PDT            9.96            391         0      Not Applicable
  06/14/2025 12 PM PDT            9.96            391         0      Not Applicable
  06/14/2025 01 PM PDT            9.96            391         0      Not Applicable
  06/14/2025 02 PM PDT            9.96            391         0      Not Applicable
  06/14/2025 03 PM PDT            9.96            391         0      Not Applicable
  06/14/2025 04 PM PDT            9.95            387         -      Not Applicable
  06/14/2025 05 PM PDT            9.95            387         0      Not Applicable
  06/14/2025 06 PM PDT            9.95            387         0      Not Applicable
  06/14/2025 07 PM PDT            9.95            387         0      Not Applicable
  06/14/2025 08 PM PDT            9.95            387         0      Not Applicable
  06/14/2025 09 PM PDT            9.95            387         0      Not Applicable
  06/14/2025 10 PM PDT            9.95            387         0      Not Applicable
  06/14/2025 11 PM PDT            9.95            387         0      Not Applicable
  06/15/2025 12 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 01 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 02 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 03 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 04 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 05 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 06 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 07 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 08 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 09 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 10 AM PDT            9.95            387         0      Not Applicable
  06/15/2025 11 AM PDT            9.96            391         +      Not Applicable
  06/15/2025 12 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 01 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 02 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 03 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 04 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 05 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 06 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 07 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 08 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 09 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 10 PM PDT            9.96            391         0      Not Applicable
  06/15/2025 11 PM PDT            9.96            391         0      Not Applicable
  06/16/2025 12 AM PDT            9.96            391         0      Not Applicable
  06/16/2025 01 AM PDT            9.96            391         0      Not Applicable
  06/16/2025 02 AM PDT            9.96            391         0      Not Applicable
  06/16/2025 03 AM PDT            9.96            391         0      Not Applicable
  06/16/2025 04 AM PDT            9.96            391         0      Not Applicable
  06/16/2025 05 AM PDT            9.96            391         0      Not Applicable
  06/16/2025 06 AM PDT            9.96            391         0      Not Applicable
  06/16/2025 07 AM PDT            9.96            391         0      Not Applicable
  06/16/2025 08 AM PDT            9.97            396         +      Not Applicable
  06/16/2025 09 AM PDT            9.97            396         0      Not Applicable
  06/16/2025 10 AM PDT            9.97            396         0      Not Applicable
  06/16/2025 11 AM PDT            9.97            396         0      Not Applicable
  06/16/2025 12 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 01 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 02 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 03 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 04 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 05 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 06 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 07 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 08 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 09 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 10 PM PDT            9.97            396         0      Not Applicable
  06/16/2025 11 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 12 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 01 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 02 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 03 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 04 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 05 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 06 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 07 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 08 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 09 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 10 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 11 AM PDT            9.97            396         0      Not Applicable
  06/17/2025 12 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 01 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 02 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 03 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 04 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 05 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 06 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 07 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 08 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 09 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 10 PM PDT            9.97            396         0      Not Applicable
  06/17/2025 11 PM PDT            9.97            396         0      Not Applicable
  06/18/2025 12 AM PDT            9.96            391         -      Not Applicable
  06/18/2025 01 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 02 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 03 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 04 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 05 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 06 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 07 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 08 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 09 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 10 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 11 AM PDT            9.96            391         0      Not Applicable
  06/18/2025 12 PM PDT            9.96            391         0      Not Applicable
  06/18/2025 01 PM PDT            9.95            387         -      Not Applicable
  06/18/2025 02 PM PDT            9.95            387         0      Not Applicable
  06/18/2025 03 PM PDT            9.95            387         0      Not Applicable
  06/18/2025 04 PM PDT            9.95            387         0      Not Applicable
  06/18/2025 05 PM PDT            9.95            387         0      Not Applicable
  06/18/2025 06 PM PDT            9.95            387         0      Not Applicable
  06/18/2025 07 PM PDT            9.95            387         0      Not Applicable
  06/18/2025 08 PM PDT            9.95            387         0      Not Applicable
  06/18/2025 09 PM PDT            9.95            387         0      Not Applicable
  06/18/2025 10 PM PDT            9.95            387         0      Not Applicable
  06/18/2025 11 PM PDT            9.95            387         0      Not Applicable
  06/19/2025 12 AM PDT            9.95            387         0      Not Applicable
  06/19/2025 01 AM PDT            9.95            387         0      Not Applicable
  06/19/2025 02 AM PDT            9.95            387         0      Not Applicable
  06/19/2025 03 AM PDT            9.94            382         -      Not Applicable
  06/19/2025 04 AM PDT            9.94            382         0      Not Applicable
  06/19/2025 05 AM PDT            9.94            382         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.