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

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MORMON SLOUGH - BELLOTA (MSGC1)
Latitude: 38.05º NLongitude: 121.01º WElevation: 130 Feet
Location: San Joaquin County in CaliforniaBulletin Group: San JoaquinRiver Group: North San Joaquin
Issuance Time: Dec 26 2025 at 9:01 AM PSTNext Issuance: Dec 26 2025 at 3:00 PM PST
Action/Monitor: 16.0 FeetMinor Flood: 22.0 FeetModerate Flood: 30.9 FeetMajor Flood: 31.9 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mormon Slough - Bellota (MSGC1)
#
# File Generation Time:  12/26/2025 at 09:01 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/24/2025 at 11:00 PM PST
# Maximum Observed Stage:                       8.95 Feet
# Maximum Observed Flow:                        1810 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/27/2025 at 06:00 AM PST
# Maximum Forecast Stage:                       6.62 Feet
# Maximum Forecast Flow:                        780 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/21/2025 09 AM PST            4.94            255                        Normal
  12/21/2025 10 AM PST            4.93            253         -              Normal
  12/21/2025 11 AM PST            4.94            255         +              Normal
  12/21/2025 12 PM PST            4.95            257         +              Normal
  12/21/2025 01 PM PST            4.95            257         0              Normal
  12/21/2025 02 PM PST            4.95            257         0              Normal
  12/21/2025 03 PM PST            4.95            257         0              Normal
  12/21/2025 04 PM PST            4.95            257         0              Normal
  12/21/2025 05 PM PST            4.93            253         -              Normal
  12/21/2025 06 PM PST            4.93            253         0              Normal
  12/21/2025 07 PM PST            4.94            255         +              Normal
  12/21/2025 08 PM PST            4.94            255         0              Normal
  12/21/2025 09 PM PST            4.95            257         +              Normal
  12/21/2025 10 PM PST            4.96            260         +              Normal
  12/21/2025 11 PM PST            4.95            257         -              Normal
  12/22/2025 12 AM PST            4.96            260         +              Normal
  12/22/2025 01 AM PST            4.96            260         0              Normal
  12/22/2025 02 AM PST            4.98            264         +              Normal
  12/22/2025 03 AM PST            4.99            267         +              Normal
  12/22/2025 04 AM PST            5.00            269         +              Normal
  12/22/2025 05 AM PST            4.97            262         -              Normal
  12/22/2025 06 AM PST            4.96            260         -              Normal
  12/22/2025 07 AM PST            4.96            260         0              Normal
  12/22/2025 08 AM PST            5.00            269         +              Normal
  12/22/2025 09 AM PST            4.99            267         -              Normal
  12/22/2025 10 AM PST            5.01            271         +              Normal
  12/22/2025 11 AM PST            4.99            267         -              Normal
  12/22/2025 12 PM PST            4.97            262         -              Normal
  12/22/2025 01 PM PST            4.94            255         -              Normal
  12/22/2025 02 PM PST            4.94            255         0              Normal
  12/22/2025 03 PM PST            4.92            251         -              Normal
  12/22/2025 04 PM PST            4.93            253         +              Normal
  12/22/2025 05 PM PST            4.91            248         -              Normal
  12/22/2025 06 PM PST            4.92            251         +              Normal
  12/22/2025 07 PM PST            4.93            253         +              Normal
  12/22/2025 08 PM PST            4.93            253         0              Normal
  12/22/2025 09 PM PST            4.93            253         0              Normal
  12/22/2025 10 PM PST            4.92            251         -              Normal
  12/22/2025 11 PM PST            4.94            255         +              Normal
  12/23/2025 12 AM PST            4.93            253         -              Normal
  12/23/2025 01 AM PST            4.94            255         +              Normal
  12/23/2025 02 AM PST            4.94            255         0              Normal
  12/23/2025 03 AM PST            4.93            253         -              Normal
  12/23/2025 04 AM PST            4.92            251         -              Normal
  12/23/2025 05 AM PST            4.92            251         0              Normal
  12/23/2025 06 AM PST            4.93            253         +              Normal
  12/23/2025 07 AM PST            4.92            251         -              Normal
  12/23/2025 08 AM PST            4.96            260         +              Normal
  12/23/2025 09 AM PST            4.94            255         -              Normal
  12/23/2025 10 AM PST            4.94            255         0              Normal
  12/23/2025 11 AM PST            4.93            253         -              Normal
  12/23/2025 12 PM PST            4.97            262         +              Normal
  12/23/2025 01 PM PST            4.94            255         -              Normal
  12/23/2025 02 PM PST            4.93            253         -              Normal
  12/23/2025 03 PM PST            4.93            253         0              Normal
  12/23/2025 04 PM PST            4.94            255         +              Normal
  12/23/2025 05 PM PST            4.94            255         0              Normal
  12/23/2025 06 PM PST            4.94            255         0              Normal
  12/23/2025 07 PM PST            4.94            255         0              Normal
  12/23/2025 08 PM PST            4.95            257         +              Normal
  12/23/2025 09 PM PST            4.95            257         0              Normal
  12/23/2025 10 PM PST            4.95            257         0              Normal
  12/23/2025 11 PM PST            4.95            257         0              Normal
  12/24/2025 12 AM PST            4.94            255         -              Normal
  12/24/2025 01 AM PST            4.94            255         0              Normal
  12/24/2025 02 AM PST            4.94            255         0              Normal
  12/24/2025 03 AM PST            4.94            255         0              Normal
  12/24/2025 04 AM PST            4.99            267         +              Normal
  12/24/2025 05 AM PST            4.98            264         -              Normal
  12/24/2025 06 AM PST            4.95            257         -              Normal
  12/24/2025 07 AM PST            5.02            273         +              Normal
  12/24/2025 08 AM PST            4.96            260         -              Normal
  12/24/2025 09 AM PST            4.95            257         -              Normal
  12/24/2025 10 AM PST            4.90            246         -              Normal
  12/24/2025 11 AM PST            4.87            239         -              Normal
  12/24/2025 12 PM PST            4.91            248         +              Normal
  12/24/2025 01 PM PST            4.94            255         +              Normal
  12/24/2025 02 PM PST            4.95            257         +              Normal
  12/24/2025 03 PM PST            5.09            289         +              Normal
  12/24/2025 04 PM PST            6.07            576         +              Normal
  12/24/2025 05 PM PST            6.29            655         +              Normal
  12/24/2025 06 PM PST            6.41            701         +              Normal
  12/24/2025 07 PM PST            6.25            640         -              Normal
  12/24/2025 08 PM PST            6.34            674         +              Normal
  12/24/2025 09 PM PST            6.58            765         +              Normal
  12/24/2025 10 PM PST            8.55           1612         +              Normal
  12/24/2025 11 PM PST            8.95           1810         +              Normal
  12/25/2025 12 AM PST            8.90           1785         -              Normal
  12/25/2025 01 AM PST            8.67           1670         -              Normal
  12/25/2025 02 AM PST            8.43           1553         -              Normal
  12/25/2025 03 AM PST            8.19           1438         -              Normal
  12/25/2025 04 AM PST            7.91           1309         -              Normal
  12/25/2025 05 AM PST            7.62           1180         -              Normal
  12/25/2025 06 AM PST            7.40           1086         -              Normal
  12/25/2025 07 AM PST            7.14            980         -              Normal
  12/25/2025 08 AM PST            7.03            937         -              Normal
  12/25/2025 09 AM PST            6.86            870         -              Normal
  12/25/2025 10 AM PST            6.74            824         -              Normal
  12/25/2025 11 AM PST            6.63            783         -              Normal
  12/25/2025 12 PM PST            6.58            765         -              Normal
  12/25/2025 01 PM PST            6.50            737         -              Normal
  12/25/2025 02 PM PST            6.42            705         -              Normal
  12/25/2025 03 PM PST            6.38            689         -              Normal
  12/25/2025 04 PM PST            6.31            662         -              Normal
  12/25/2025 05 PM PST            6.16            607         -              Normal
  12/25/2025 06 PM PST            6.24            636         +              Normal
  12/25/2025 07 PM PST            6.05            569         -              Normal
  12/25/2025 08 PM PST            6.08            579         +              Normal
  12/25/2025 09 PM PST            6.03            562         -              Normal
  12/25/2025 10 PM PST            6.02            559         -              Normal
  12/25/2025 11 PM PST            6.03            562         +              Normal
  12/26/2025 12 AM PST            6.01            555         -              Normal
  12/26/2025 01 AM PST            6.03            562         +              Normal
  12/26/2025 02 AM PST            6.02            559         -              Normal
  12/26/2025 03 AM PST            6.00            552         -              Normal
  12/26/2025 04 AM PST            6.06            572         +              Normal
  12/26/2025 05 AM PST            6.05            569         -              Normal
  12/26/2025 06 AM PST            6.01            555         -              Normal
  12/26/2025 07 AM PST            5.95            535         -              Normal
  12/26/2025 08 AM PST            5.90            518         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/26/2025 09 AM PST            5.86            505                        Normal
  12/26/2025 10 AM PST            5.82            492         -              Normal
  12/26/2025 11 AM PST            5.80            485         -              Normal
  12/26/2025 12 PM PST            5.81            489         +              Normal
  12/26/2025 01 PM PST            5.84            498         +              Normal
  12/26/2025 02 PM PST            5.90            518         +              Normal
  12/26/2025 03 PM PST            5.99            549         +              Normal
  12/26/2025 04 PM PST            6.09            582         +              Normal
  12/26/2025 05 PM PST            6.18            614         +              Normal
  12/26/2025 06 PM PST            6.27            647         +              Normal
  12/26/2025 07 PM PST            6.33            670         +              Normal
  12/26/2025 08 PM PST            6.37            685         +              Normal
  12/26/2025 09 PM PST            6.39            693         +              Normal
  12/26/2025 10 PM PST            6.40            697         +              Normal
  12/26/2025 11 PM PST            6.41            701         +              Normal
  12/27/2025 12 AM PST            6.42            705         +              Normal
  12/27/2025 01 AM PST            6.44            713         +              Normal
  12/27/2025 02 AM PST            6.48            729         +              Normal
  12/27/2025 03 AM PST            6.53            748         +              Normal
  12/27/2025 04 AM PST            6.57            762         +              Normal
  12/27/2025 05 AM PST            6.61            776         +              Normal
  12/27/2025 06 AM PST            6.62            780         +              Normal
  12/27/2025 07 AM PST            6.60            772         -              Normal
  12/27/2025 08 AM PST            6.56            758         -              Normal
  12/27/2025 09 AM PST            6.49            733         -              Normal
  12/27/2025 10 AM PST            6.42            705         -              Normal
  12/27/2025 11 AM PST            6.33            670         -              Normal
  12/27/2025 12 PM PST            6.23            632         -              Normal
  12/27/2025 01 PM PST            6.12            593         -              Normal
  12/27/2025 02 PM PST            6.01            555         -              Normal
  12/27/2025 03 PM PST            5.90            518         -              Normal
  12/27/2025 04 PM PST            5.79            482         -              Normal
  12/27/2025 05 PM PST            5.68            449         -              Normal
  12/27/2025 06 PM PST            5.59            422         -              Normal
  12/27/2025 07 PM PST            5.52            402         -              Normal
  12/27/2025 08 PM PST            5.45            382         -              Normal
  12/27/2025 09 PM PST            5.37            360         -              Normal
  12/27/2025 10 PM PST            5.30            341         -              Normal
  12/27/2025 11 PM PST            5.24            326         -              Normal
  12/28/2025 12 AM PST            5.18            311         -              Normal
  12/28/2025 01 AM PST            5.12            296         -              Normal
  12/28/2025 02 AM PST            5.07            285         -              Normal
  12/28/2025 03 AM PST            5.01            271         -              Normal
  12/28/2025 04 AM PST            4.97            262         -              Normal
  12/28/2025 05 AM PST            4.93            253         -              Normal
  12/28/2025 06 AM PST            4.90            246         -              Normal
  12/28/2025 07 AM PST            4.86            237         -              Normal
  12/28/2025 08 AM PST            4.83            231         -              Normal
  12/28/2025 09 AM PST            4.81            227         -              Normal
  12/28/2025 10 AM PST            4.79            223         -              Normal
  12/28/2025 11 AM PST            4.76            217         -              Normal
  12/28/2025 12 PM PST            4.75            215         -              Normal
  12/28/2025 01 PM PST            4.73            211         -              Normal
  12/28/2025 02 PM PST            4.71            207         -              Normal
  12/28/2025 03 PM PST            4.70            205         -              Normal
  12/28/2025 04 PM PST            4.69            203         -              Normal
  12/28/2025 05 PM PST            4.68            201         -              Normal
  12/28/2025 06 PM PST            4.67            199         -              Normal
  12/28/2025 07 PM PST            4.66            197         -              Normal
  12/28/2025 08 PM PST            4.65            195         -              Normal
  12/28/2025 09 PM PST            4.65            195         0              Normal
  12/28/2025 10 PM PST            4.64            193         -              Normal
  12/28/2025 11 PM PST            4.64            193         0              Normal
  12/29/2025 12 AM PST            4.63            192         -              Normal
  12/29/2025 01 AM PST            4.63            192         0              Normal
  12/29/2025 02 AM PST            4.62            190         -              Normal
  12/29/2025 03 AM PST            4.62            190         0              Normal
  12/29/2025 04 AM PST            4.62            190         0              Normal
  12/29/2025 05 AM PST            4.61            188         -              Normal
  12/29/2025 06 AM PST            4.61            188         0              Normal
  12/29/2025 07 AM PST            4.61            188         0              Normal
  12/29/2025 08 AM PST            4.60            186         -              Normal
  12/29/2025 09 AM PST            4.60            186         0              Normal
  12/29/2025 10 AM PST            4.60            186         0              Normal
  12/29/2025 11 AM PST            4.60            186         0              Normal
  12/29/2025 12 PM PST            4.60            186         0              Normal
  12/29/2025 01 PM PST            4.59            184         -              Normal
  12/29/2025 02 PM PST            4.59            184         0              Normal
  12/29/2025 03 PM PST            4.59            184         0              Normal
  12/29/2025 04 PM PST            4.59            184         0              Normal
  12/29/2025 05 PM PST            4.59            184         0              Normal
  12/29/2025 06 PM PST            4.59            184         0              Normal
  12/29/2025 07 PM PST            4.59            184         0              Normal
  12/29/2025 08 PM PST            4.58            183         -              Normal
  12/29/2025 09 PM PST            4.58            183         0              Normal
  12/29/2025 10 PM PST            4.58            183         0              Normal
  12/29/2025 11 PM PST            4.58            183         0              Normal
  12/30/2025 12 AM PST            4.58            183         0              Normal
  12/30/2025 01 AM PST            4.58            183         0              Normal
  12/30/2025 02 AM PST            4.58            183         0              Normal
  12/30/2025 03 AM PST            4.58            183         0              Normal
  12/30/2025 04 AM PST            4.58            183         0              Normal
  12/30/2025 05 AM PST            4.58            183         0              Normal
  12/30/2025 06 AM PST            4.57            181         -              Normal
  12/30/2025 07 AM PST            4.57            181         0              Normal
  12/30/2025 08 AM PST            4.57            181         0              Normal
  12/30/2025 09 AM PST            4.57            181         0              Normal
  12/30/2025 10 AM PST            4.57            181         0              Normal
  12/30/2025 11 AM PST            4.57            181         0              Normal
  12/30/2025 12 PM PST            4.57            181         0              Normal
  12/30/2025 01 PM PST            4.57            181         0              Normal
  12/30/2025 02 PM PST            4.57            181         0              Normal
  12/30/2025 03 PM PST            4.56            179         -              Normal
  12/30/2025 04 PM PST            4.56            179         0              Normal
  12/30/2025 05 PM PST            4.56            179         0              Normal
  12/30/2025 06 PM PST            4.56            179         0              Normal
  12/30/2025 07 PM PST            4.56            179         0              Normal
  12/30/2025 08 PM PST            4.56            179         0              Normal
  12/30/2025 09 PM PST            4.56            179         0              Normal
  12/30/2025 10 PM PST            4.56            179         0              Normal
  12/30/2025 11 PM PST            4.55            177         -              Normal
  12/31/2025 12 AM PST            4.55            177         0              Normal
  12/31/2025 01 AM PST            4.55            177         0              Normal
  12/31/2025 02 AM PST            4.55            177         0              Normal
  12/31/2025 03 AM PST            4.55            177         0              Normal
  12/31/2025 04 AM PST            4.55            177         0              Normal
#
# 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.