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

 | 

SAN JOAQUIN RIVER - STEVINSON (SSTC1)
Latitude: 37.29º NLongitude: 120.85º WElevation: 82 FeetForecast Type: Unofficial Location
Location: Merced County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Sep 18 2026 at 8:11 AM PDTNext Issuance: Sep 19 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: San Joaquin River - Stevinson (SSTC1)
#
# File Generation Time:  09/18/2026 at 08:13 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  09/18/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       60.64 Feet
# Maximum Observed Flow:                        25 cfs
#
# Earliest Date & Time of Maximum Forecast:     09/23/2026 at 05:00 AM PDT
# Maximum Forecast Stage:                       62.06 Feet
# Maximum Forecast Flow:                        92 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  09/13/2026 08 AM PDT           60.56             23                Not Applicable
  09/13/2026 09 AM PDT           60.56             23         0      Not Applicable
  09/13/2026 10 AM PDT           60.56             23         0      Not Applicable
  09/13/2026 11 AM PDT           60.53             22         -      Not Applicable
  09/13/2026 12 PM PDT           60.53             22         0      Not Applicable
  09/13/2026 01 PM PDT           60.53             22         0      Not Applicable
  09/13/2026 02 PM PDT           60.53             22         0      Not Applicable
  09/13/2026 03 PM PDT           60.50             21         -      Not Applicable
  09/13/2026 04 PM PDT           60.50             21         0      Not Applicable
  09/13/2026 05 PM PDT           60.50             21         0      Not Applicable
  09/13/2026 06 PM PDT           60.50             21         0      Not Applicable
  09/13/2026 07 PM PDT           60.50             21         0      Not Applicable
  09/13/2026 08 PM PDT           60.50             21         0      Not Applicable
  09/13/2026 09 PM PDT           60.50             21         0      Not Applicable
  09/13/2026 10 PM PDT           60.50             21         0      Not Applicable
  09/13/2026 11 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 12 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 01 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 02 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 03 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 04 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 05 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 06 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 07 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 08 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 09 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 10 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 11 AM PDT           60.50             21         0      Not Applicable
  09/14/2026 12 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 01 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 02 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 03 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 04 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 05 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 06 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 07 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 08 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 09 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 10 PM PDT           60.50             21         0      Not Applicable
  09/14/2026 11 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 12 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 01 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 02 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 03 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 04 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 05 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 06 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 07 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 08 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 09 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 10 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 11 AM PDT           60.50             21         0      Not Applicable
  09/15/2026 12 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 01 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 02 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 03 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 04 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 05 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 06 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 07 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 08 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 09 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 10 PM PDT           60.50             21         0      Not Applicable
  09/15/2026 11 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 12 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 01 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 02 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 03 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 04 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 05 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 06 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 07 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 08 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 09 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 10 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 11 AM PDT           60.50             21         0      Not Applicable
  09/16/2026 12 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 01 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 02 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 03 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 04 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 05 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 06 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 07 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 08 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 09 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 10 PM PDT           60.50             21         0      Not Applicable
  09/16/2026 11 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 12 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 01 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 02 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 03 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 04 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 05 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 06 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 07 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 08 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 09 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 10 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 11 AM PDT           60.50             21         0      Not Applicable
  09/17/2026 12 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 01 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 02 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 03 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 04 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 05 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 06 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 07 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 08 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 09 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 10 PM PDT           60.50             21         0      Not Applicable
  09/17/2026 11 PM PDT           60.50             21         0      Not Applicable
  09/18/2026 12 AM PDT           60.50             21         0      Not Applicable
  09/18/2026 01 AM PDT           60.50             21         0      Not Applicable
  09/18/2026 02 AM PDT           60.50             21         0      Not Applicable
  09/18/2026 03 AM PDT           60.50             21         0      Not Applicable
  09/18/2026 04 AM PDT           60.50             21         0      Not Applicable
  09/18/2026 05 AM PDT           60.50             21         0      Not Applicable
  09/18/2026 06 AM PDT           60.58             23         +      Not Applicable
  09/18/2026 07 AM PDT           60.64             25         +      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  09/18/2026 08 AM PDT           60.70             27                Not Applicable
  09/18/2026 09 AM PDT           60.76             29         +      Not Applicable
  09/18/2026 10 AM PDT           60.79             31         +      Not Applicable
  09/18/2026 11 AM PDT           60.87             33         +      Not Applicable
  09/18/2026 12 PM PDT           60.92             35         +      Not Applicable
  09/18/2026 01 PM PDT           60.99             38         +      Not Applicable
  09/18/2026 02 PM PDT           61.03             39         +      Not Applicable
  09/18/2026 03 PM PDT           61.08             41         +      Not Applicable
  09/18/2026 04 PM PDT           61.14             43         +      Not Applicable
  09/18/2026 05 PM PDT           61.19             45         +      Not Applicable
  09/18/2026 06 PM PDT           61.24             47         +      Not Applicable
  09/18/2026 07 PM PDT           61.29             49         +      Not Applicable
  09/18/2026 08 PM PDT           61.32             51         +      Not Applicable
  09/18/2026 09 PM PDT           61.37             53         +      Not Applicable
  09/18/2026 10 PM PDT           61.41             54         +      Not Applicable
  09/18/2026 11 PM PDT           61.44             56         +      Not Applicable
  09/19/2026 12 AM PDT           61.46             57         +      Not Applicable
  09/19/2026 01 AM PDT           61.49             58         +      Not Applicable
  09/19/2026 02 AM PDT           61.52             60         +      Not Applicable
  09/19/2026 03 AM PDT           61.54             61         +      Not Applicable
  09/19/2026 04 AM PDT           61.56             62         +      Not Applicable
  09/19/2026 05 AM PDT           61.58             63         +      Not Applicable
  09/19/2026 06 AM PDT           61.60             64         +      Not Applicable
  09/19/2026 07 AM PDT           61.62             65         +      Not Applicable
  09/19/2026 08 AM PDT           61.63             66         +      Not Applicable
  09/19/2026 09 AM PDT           61.65             67         +      Not Applicable
  09/19/2026 10 AM PDT           61.65             67         0      Not Applicable
  09/19/2026 11 AM PDT           61.67             68         +      Not Applicable
  09/19/2026 12 PM PDT           61.68             69         +      Not Applicable
  09/19/2026 01 PM PDT           61.70             70         +      Not Applicable
  09/19/2026 02 PM PDT           61.71             70         +      Not Applicable
  09/19/2026 03 PM PDT           61.72             71         +      Not Applicable
  09/19/2026 04 PM PDT           61.73             72         +      Not Applicable
  09/19/2026 05 PM PDT           61.74             72         +      Not Applicable
  09/19/2026 06 PM PDT           61.75             73         +      Not Applicable
  09/19/2026 07 PM PDT           61.76             73         +      Not Applicable
  09/19/2026 08 PM PDT           61.77             74         +      Not Applicable
  09/19/2026 09 PM PDT           61.77             74         0      Not Applicable
  09/19/2026 10 PM PDT           61.79             75         +      Not Applicable
  09/19/2026 11 PM PDT           61.80             76         +      Not Applicable
  09/20/2026 12 AM PDT           61.81             76         +      Not Applicable
  09/20/2026 01 AM PDT           61.82             77         +      Not Applicable
  09/20/2026 02 AM PDT           61.82             77         0      Not Applicable
  09/20/2026 03 AM PDT           61.83             78         +      Not Applicable
  09/20/2026 04 AM PDT           61.83             78         0      Not Applicable
  09/20/2026 05 AM PDT           61.84             78         +      Not Applicable
  09/20/2026 06 AM PDT           61.85             79         +      Not Applicable
  09/20/2026 07 AM PDT           61.86             79         +      Not Applicable
  09/20/2026 08 AM PDT           61.87             80         +      Not Applicable
  09/20/2026 09 AM PDT           61.87             80         0      Not Applicable
  09/20/2026 10 AM PDT           61.87             80         0      Not Applicable
  09/20/2026 11 AM PDT           61.88             81         +      Not Applicable
  09/20/2026 12 PM PDT           61.89             81         +      Not Applicable
  09/20/2026 01 PM PDT           61.90             82         +      Not Applicable
  09/20/2026 02 PM PDT           61.90             82         0      Not Applicable
  09/20/2026 03 PM PDT           61.90             82         0      Not Applicable
  09/20/2026 04 PM PDT           61.91             83         +      Not Applicable
  09/20/2026 05 PM PDT           61.91             83         0      Not Applicable
  09/20/2026 06 PM PDT           61.92             83         +      Not Applicable
  09/20/2026 07 PM PDT           61.92             83         0      Not Applicable
  09/20/2026 08 PM PDT           61.93             84         +      Not Applicable
  09/20/2026 09 PM PDT           61.94             84         +      Not Applicable
  09/20/2026 10 PM PDT           61.94             84         0      Not Applicable
  09/20/2026 11 PM PDT           61.95             85         +      Not Applicable
  09/21/2026 12 AM PDT           61.95             85         0      Not Applicable
  09/21/2026 01 AM PDT           61.95             85         0      Not Applicable
  09/21/2026 02 AM PDT           61.95             85         0      Not Applicable
  09/21/2026 03 AM PDT           61.95             85         0      Not Applicable
  09/21/2026 04 AM PDT           61.96             86         +      Not Applicable
  09/21/2026 05 AM PDT           61.96             86         0      Not Applicable
  09/21/2026 06 AM PDT           61.97             86         +      Not Applicable
  09/21/2026 07 AM PDT           61.97             86         0      Not Applicable
  09/21/2026 08 AM PDT           61.98             87         +      Not Applicable
  09/21/2026 09 AM PDT           61.98             87         0      Not Applicable
  09/21/2026 10 AM PDT           61.98             87         0      Not Applicable
  09/21/2026 11 AM PDT           61.98             87         0      Not Applicable
  09/21/2026 12 PM PDT           61.98             87         0      Not Applicable
  09/21/2026 01 PM PDT           61.99             88         +      Not Applicable
  09/21/2026 02 PM PDT           61.99             88         0      Not Applicable
  09/21/2026 03 PM PDT           61.99             88         0      Not Applicable
  09/21/2026 04 PM PDT           62.00             88         +      Not Applicable
  09/21/2026 05 PM PDT           62.00             88         0      Not Applicable
  09/21/2026 06 PM PDT           62.00             88         0      Not Applicable
  09/21/2026 07 PM PDT           62.01             89         +      Not Applicable
  09/21/2026 08 PM PDT           62.01             89         0      Not Applicable
  09/21/2026 09 PM PDT           62.01             89         0      Not Applicable
  09/21/2026 10 PM PDT           62.01             89         0      Not Applicable
  09/21/2026 11 PM PDT           62.02             89         +      Not Applicable
  09/22/2026 12 AM PDT           62.02             89         0      Not Applicable
  09/22/2026 01 AM PDT           62.02             89         0      Not Applicable
  09/22/2026 02 AM PDT           62.02             89         0      Not Applicable
  09/22/2026 03 AM PDT           62.02             89         0      Not Applicable
  09/22/2026 04 AM PDT           62.03             90         +      Not Applicable
  09/22/2026 05 AM PDT           62.03             90         0      Not Applicable
  09/22/2026 06 AM PDT           62.03             90         0      Not Applicable
  09/22/2026 07 AM PDT           62.03             90         0      Not Applicable
  09/22/2026 08 AM PDT           62.03             90         0      Not Applicable
  09/22/2026 09 AM PDT           62.03             90         0      Not Applicable
  09/22/2026 10 AM PDT           62.03             90         0      Not Applicable
  09/22/2026 11 AM PDT           62.03             90         0      Not Applicable
  09/22/2026 12 PM PDT           62.03             90         0      Not Applicable
  09/22/2026 01 PM PDT           62.03             90         0      Not Applicable
  09/22/2026 02 PM PDT           62.04             91         +      Not Applicable
  09/22/2026 03 PM PDT           62.04             91         0      Not Applicable
  09/22/2026 04 PM PDT           62.04             91         0      Not Applicable
  09/22/2026 05 PM PDT           62.04             91         0      Not Applicable
  09/22/2026 06 PM PDT           62.04             91         0      Not Applicable
  09/22/2026 07 PM PDT           62.04             91         0      Not Applicable
  09/22/2026 08 PM PDT           62.05             91         +      Not Applicable
  09/22/2026 09 PM PDT           62.05             91         0      Not Applicable
  09/22/2026 10 PM PDT           62.05             91         0      Not Applicable
  09/22/2026 11 PM PDT           62.05             91         0      Not Applicable
  09/23/2026 12 AM PDT           62.05             91         0      Not Applicable
  09/23/2026 01 AM PDT           62.05             91         0      Not Applicable
  09/23/2026 02 AM PDT           62.05             91         0      Not Applicable
  09/23/2026 03 AM PDT           62.05             91         0      Not Applicable
  09/23/2026 04 AM PDT           62.05             91         0      Not Applicable
  09/23/2026 05 AM PDT           62.06             92         +      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.