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

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SAN JOAQUIN RIVER - MOSSDALE (MOSC1)
Latitude: 37.79º NLongitude: 121.31º WElevation: 32 Feet
Location: San Joaquin County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Jan 18 2026 at 8:18 AM PSTNext Issuance: Jan 19 2026 at 9:00 AM PST
Action/Monitor: 19.5 FeetMinor Flood: 28.5 FeetModerate Flood: 32.1 FeetMajor Flood: 33.1 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Joaquin River - Mossdale (MOSC1)
#
# File Generation Time:  01/18/2026 at 08:18 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/16/2026 at 05:00 PM PST
# Maximum Observed Stage:                       7.08 Feet
#
# Earliest Date & Time of Maximum Forecast:     01/18/2026 at 10:00 AM PST
# Maximum Forecast Stage:                       5.92 Feet
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Trend     Observed Status
# ------------------------------------------------------------------
  01/13/2026 08 AM PST            5.43                        Normal
  01/13/2026 09 AM PST            5.40         -              Normal
  01/13/2026 10 AM PST            5.47         +              Normal
  01/13/2026 11 AM PST            5.76         +              Normal
  01/13/2026 12 PM PST            6.07         +              Normal
  01/13/2026 01 PM PST            6.36         +              Normal
  01/13/2026 02 PM PST            6.62         +              Normal
  01/13/2026 03 PM PST            6.78         +              Normal
  01/13/2026 04 PM PST            6.74         -              Normal
  01/13/2026 05 PM PST            6.62         -              Normal
  01/13/2026 06 PM PST            6.43         -              Normal
  01/13/2026 07 PM PST            6.24         -              Normal
  01/13/2026 08 PM PST            6.03         -              Normal
  01/13/2026 09 PM PST            5.82         -              Normal
  01/13/2026 10 PM PST            5.61         -              Normal
  01/13/2026 11 PM PST            5.41         -              Normal
  01/14/2026 12 AM PST            5.22         -              Normal
  01/14/2026 01 AM PST            5.07         -              Normal
  01/14/2026 02 AM PST            5.08         +              Normal
  01/14/2026 03 AM PST            5.25         +              Normal
  01/14/2026 04 AM PST            5.38         +              Normal
  01/14/2026 05 AM PST            5.51         +              Normal
  01/14/2026 06 AM PST            5.57         +              Normal
  01/14/2026 07 AM PST            5.55         -              Normal
  01/14/2026 08 AM PST            5.54         -              Normal
  01/14/2026 09 AM PST            5.51         -              Normal
  01/14/2026 10 AM PST            5.49         -              Normal
  01/14/2026 11 AM PST            5.56         +              Normal
  01/14/2026 12 PM PST            5.88         +              Normal
  01/14/2026 01 PM PST            6.20         +              Normal
  01/14/2026 02 PM PST            6.49         +              Normal
  01/14/2026 03 PM PST            6.73         +              Normal
  01/14/2026 04 PM PST            6.83         +              Normal
  01/14/2026 05 PM PST            6.75         -              Normal
  01/14/2026 06 PM PST            6.60         -              Normal
  01/14/2026 07 PM PST            6.40         -              Normal
  01/14/2026 08 PM PST            6.19         -              Normal
  01/14/2026 09 PM PST            5.97         -              Normal
  01/14/2026 10 PM PST            5.75         -              Normal
  01/14/2026 11 PM PST            5.54         -              Normal
  01/15/2026 12 AM PST            5.33         -              Normal
  01/15/2026 01 AM PST            5.13         -              Normal
  01/15/2026 02 AM PST            5.00         -              Normal
  01/15/2026 03 AM PST            5.10         +              Normal
  01/15/2026 04 AM PST            5.28         +              Normal
  01/15/2026 05 AM PST            5.45         +              Normal
  01/15/2026 06 AM PST            5.58         +              Normal
  01/15/2026 07 AM PST            5.63         +              Normal
  01/15/2026 08 AM PST            5.63         0              Normal
  01/15/2026 09 AM PST            5.59         -              Normal
  01/15/2026 10 AM PST            5.55         -              Normal
  01/15/2026 11 AM PST            5.54         -              Normal
  01/15/2026 12 PM PST            5.71         +              Normal
  01/15/2026 01 PM PST            6.04         +              Normal
  01/15/2026 02 PM PST            6.34         +              Normal
  01/15/2026 03 PM PST            6.64         +              Normal
  01/15/2026 04 PM PST            6.87         +              Normal
  01/15/2026 05 PM PST            6.91         +              Normal
  01/15/2026 06 PM PST            6.79         -              Normal
  01/15/2026 07 PM PST            6.60         -              Normal
  01/15/2026 08 PM PST            6.39         -              Normal
  01/15/2026 09 PM PST            6.17         -              Normal
  01/15/2026 10 PM PST            5.94         -              Normal
  01/15/2026 11 PM PST            5.70         -              Normal
  01/16/2026 12 AM PST            5.49         -              Normal
  01/16/2026 01 AM PST            5.26         -              Normal
  01/16/2026 02 AM PST            5.07         -              Normal
  01/16/2026 03 AM PST            5.02         -              Normal
  01/16/2026 04 AM PST            5.24         +              Normal
  01/16/2026 05 AM PST            5.42         +              Normal
  01/16/2026 06 AM PST            5.62         +              Normal
  01/16/2026 07 AM PST            5.77         +              Normal
  01/16/2026 08 AM PST            5.79         +              Normal
  01/16/2026 09 AM PST            5.78         -              Normal
  01/16/2026 10 AM PST            5.73         -              Normal
  01/16/2026 11 AM PST            5.67         -              Normal
  01/16/2026 12 PM PST            5.66         -              Normal
  01/16/2026 01 PM PST            5.92         +              Normal
  01/16/2026 02 PM PST            6.25         +              Normal
  01/16/2026 03 PM PST            6.56         +              Normal
  01/16/2026 04 PM PST            6.86         +              Normal
  01/16/2026 05 PM PST            7.08         +              Normal
  01/16/2026 06 PM PST            7.03         -              Normal
  01/16/2026 07 PM PST            6.88         -              Normal
  01/16/2026 08 PM PST            6.66         -              Normal
  01/16/2026 09 PM PST            6.43         -              Normal
  01/16/2026 10 PM PST            6.19         -              Normal
  01/16/2026 11 PM PST            5.96         -              Normal
  01/17/2026 12 AM PST            5.71         -              Normal
  01/17/2026 01 AM PST            5.49         -              Normal
  01/17/2026 02 AM PST            5.25         -              Normal
  01/17/2026 03 AM PST            5.07         -              Normal
  01/17/2026 04 AM PST            5.15         +              Normal
  01/17/2026 05 AM PST            5.36         +              Normal
  01/17/2026 06 AM PST            5.52         +              Normal
  01/17/2026 07 AM PST            5.68         +              Normal
  01/17/2026 08 AM PST            5.80         +              Normal
  01/17/2026 09 AM PST            5.77         -              Normal
  01/17/2026 10 AM PST            5.72         -              Normal
  01/17/2026 11 AM PST            5.61         -              Normal
  01/17/2026 12 PM PST            5.54         -              Normal
  01/17/2026 01 PM PST            5.50         -              Normal
  01/17/2026 02 PM PST            5.80         +              Normal
  01/17/2026 03 PM PST            6.13         +              Normal
  01/17/2026 04 PM PST            6.45         +              Normal
  01/17/2026 05 PM PST            6.74         +              Normal
  01/17/2026 06 PM PST            6.89         +              Normal
  01/17/2026 07 PM PST            6.79         -              Normal
  01/17/2026 08 PM PST            6.62         -              Normal
  01/17/2026 09 PM PST            6.40         -              Normal
  01/17/2026 10 PM PST            6.22         -              Normal
  01/17/2026 11 PM PST            6.03         -              Normal
  01/18/2026 12 AM PST            5.80         -              Normal
  01/18/2026 01 AM PST            5.54         -              Normal
  01/18/2026 02 AM PST            5.24         -              Normal
  01/18/2026 03 AM PST            5.03         -              Normal
  01/18/2026 04 AM PST            4.92         -              Normal
  01/18/2026 05 AM PST            5.14         +              Normal
  01/18/2026 06 AM PST            5.33         +              Normal
  01/18/2026 07 AM PST            5.50         +              Normal
  01/18/2026 08 AM PST            5.65         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Trend     Forecast Status
# ------------------------------------------------------------------
  01/18/2026 09 AM PST            5.79                        Normal
  01/18/2026 10 AM PST            5.92         +              Normal
  01/18/2026 11 AM PST            5.92         0              Normal
  01/18/2026 12 PM PST            5.92         0              Normal
  01/18/2026 01 PM PST            5.92         0              Normal
  01/18/2026 02 PM PST            5.92         0              Normal
  01/18/2026 03 PM PST            5.92         0              Normal
  01/18/2026 04 PM PST            5.92         0              Normal
  01/18/2026 05 PM PST            5.92         0              Normal
  01/18/2026 06 PM PST            5.92         0              Normal
  01/18/2026 07 PM PST            5.92         0              Normal
  01/18/2026 08 PM PST            5.92         0              Normal
  01/18/2026 09 PM PST            5.92         0              Normal
  01/18/2026 10 PM PST            5.92         0              Normal
  01/18/2026 11 PM PST            5.92         0              Normal
  01/19/2026 12 AM PST            5.92         0              Normal
  01/19/2026 01 AM PST            5.92         0              Normal
  01/19/2026 02 AM PST            5.92         0              Normal
  01/19/2026 03 AM PST            5.92         0              Normal
  01/19/2026 04 AM PST            5.92         0              Normal
  01/19/2026 05 AM PST            5.92         0              Normal
  01/19/2026 06 AM PST            5.92         0              Normal
  01/19/2026 07 AM PST            5.92         0              Normal
  01/19/2026 08 AM PST            5.92         0              Normal
  01/19/2026 09 AM PST            5.92         0              Normal
  01/19/2026 10 AM PST            5.92         0              Normal
  01/19/2026 11 AM PST            5.92         0              Normal
  01/19/2026 12 PM PST            5.92         0              Normal
  01/19/2026 01 PM PST            5.92         0              Normal
  01/19/2026 02 PM PST            5.92         0              Normal
  01/19/2026 03 PM PST            5.92         0              Normal
  01/19/2026 04 PM PST            5.92         0              Normal
  01/19/2026 05 PM PST            5.92         0              Normal
  01/19/2026 06 PM PST            5.92         0              Normal
  01/19/2026 07 PM PST            5.91         -              Normal
  01/19/2026 08 PM PST            5.91         0              Normal
  01/19/2026 09 PM PST            5.91         0              Normal
  01/19/2026 10 PM PST            5.91         0              Normal
  01/19/2026 11 PM PST            5.91         0              Normal
  01/20/2026 12 AM PST            5.91         0              Normal
  01/20/2026 01 AM PST            5.91         0              Normal
  01/20/2026 02 AM PST            5.91         0              Normal
  01/20/2026 03 AM PST            5.91         0              Normal
  01/20/2026 04 AM PST            5.91         0              Normal
  01/20/2026 05 AM PST            5.91         0              Normal
  01/20/2026 06 AM PST            5.91         0              Normal
  01/20/2026 07 AM PST            5.91         0              Normal
  01/20/2026 08 AM PST            5.91         0              Normal
  01/20/2026 09 AM PST            5.91         0              Normal
  01/20/2026 10 AM PST            5.91         0              Normal
  01/20/2026 11 AM PST            5.91         0              Normal
  01/20/2026 12 PM PST            5.91         0              Normal
  01/20/2026 01 PM PST            5.91         0              Normal
  01/20/2026 02 PM PST            5.91         0              Normal
  01/20/2026 03 PM PST            5.91         0              Normal
  01/20/2026 04 PM PST            5.91         0              Normal
  01/20/2026 05 PM PST            5.91         0              Normal
  01/20/2026 06 PM PST            5.91         0              Normal
  01/20/2026 07 PM PST            5.91         0              Normal
  01/20/2026 08 PM PST            5.91         0              Normal
  01/20/2026 09 PM PST            5.91         0              Normal
  01/20/2026 10 PM PST            5.91         0              Normal
  01/20/2026 11 PM PST            5.91         0              Normal
  01/21/2026 12 AM PST            5.91         0              Normal
  01/21/2026 01 AM PST            5.91         0              Normal
  01/21/2026 02 AM PST            5.91         0              Normal
  01/21/2026 03 AM PST            5.91         0              Normal
  01/21/2026 04 AM PST            5.91         0              Normal
  01/21/2026 05 AM PST            5.91         0              Normal
  01/21/2026 06 AM PST            5.91         0              Normal
  01/21/2026 07 AM PST            5.91         0              Normal
  01/21/2026 08 AM PST            5.91         0              Normal
  01/21/2026 09 AM PST            5.91         0              Normal
  01/21/2026 10 AM PST            5.91         0              Normal
  01/21/2026 11 AM PST            5.91         0              Normal
  01/21/2026 12 PM PST            5.91         0              Normal
  01/21/2026 01 PM PST            5.91         0              Normal
  01/21/2026 02 PM PST            5.91         0              Normal
  01/21/2026 03 PM PST            5.91         0              Normal
  01/21/2026 04 PM PST            5.91         0              Normal
  01/21/2026 05 PM PST            5.91         0              Normal
  01/21/2026 06 PM PST            5.91         0              Normal
  01/21/2026 07 PM PST            5.91         0              Normal
  01/21/2026 08 PM PST            5.91         0              Normal
  01/21/2026 09 PM PST            5.91         0              Normal
  01/21/2026 10 PM PST            5.91         0              Normal
  01/21/2026 11 PM PST            5.91         0              Normal
  01/22/2026 12 AM PST            5.91         0              Normal
  01/22/2026 01 AM PST            5.91         0              Normal
  01/22/2026 02 AM PST            5.91         0              Normal
  01/22/2026 03 AM PST            5.91         0              Normal
  01/22/2026 04 AM PST            5.91         0              Normal
  01/22/2026 05 AM PST            5.91         0              Normal
  01/22/2026 06 AM PST            5.90         -              Normal
  01/22/2026 07 AM PST            5.90         0              Normal
  01/22/2026 08 AM PST            5.90         0              Normal
  01/22/2026 09 AM PST            5.90         0              Normal
  01/22/2026 10 AM PST            5.90         0              Normal
  01/22/2026 11 AM PST            5.90         0              Normal
  01/22/2026 12 PM PST            5.90         0              Normal
  01/22/2026 01 PM PST            5.90         0              Normal
  01/22/2026 02 PM PST            5.90         0              Normal
  01/22/2026 03 PM PST            5.90         0              Normal
  01/22/2026 04 PM PST            5.90         0              Normal
  01/22/2026 05 PM PST            5.90         0              Normal
  01/22/2026 06 PM PST            5.90         0              Normal
  01/22/2026 07 PM PST            5.90         0              Normal
  01/22/2026 08 PM PST            5.90         0              Normal
  01/22/2026 09 PM PST            5.90         0              Normal
  01/22/2026 10 PM PST            5.90         0              Normal
  01/22/2026 11 PM PST            5.90         0              Normal
  01/23/2026 12 AM PST            5.90         0              Normal
  01/23/2026 01 AM PST            5.90         0              Normal
  01/23/2026 02 AM PST            5.90         0              Normal
  01/23/2026 03 AM PST            5.90         0              Normal
  01/23/2026 04 AM PST            5.90         0              Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Trends are determined using hourly change in unrounded stage.
# NOTE 3: Maximum Values are determined using unrounded stage.