TUOLUMNE RIVER - MODESTO (MDSC1)
Latitude: 37.63º NLongitude: 120.99º WElevation: 60 FeetForecast Type: Official Location
Location: Stanislaus County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Nov 04 2026 at 12:42 PM PSTNext Issuance: Nov 05 2026 at 9:00 AM PST
Action: 50.5 FeetMinor Flood: 55.0 FeetModerate Flood: 66.0 FeetMajor Flood: 67.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Tuolumne River - Modesto (MDSC1)
#
# File Generation Time:  11/04/2026 at 12:42 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/02/2026 at 01:00 AM PST
# Maximum Observed Stage:                       37.05 Feet
# Maximum Observed Flow:                        235 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/07/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       36.85 Feet
# Maximum Forecast Flow:                        187 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/30/2026 01 PM PDT           37.00            223                        Normal
  10/30/2026 02 PM PDT           37.01            225         +              Normal
  10/30/2026 03 PM PDT           37.01            225         0              Normal
  10/30/2026 04 PM PDT           37.01            225         0              Normal
  10/30/2026 05 PM PDT           37.01            225         0              Normal
  10/30/2026 06 PM PDT           37.01            225         0              Normal
  10/30/2026 07 PM PDT           37.01            225         0              Normal
  10/30/2026 08 PM PDT           37.00            223         -              Normal
  10/30/2026 09 PM PDT           37.01            225         +              Normal
  10/30/2026 10 PM PDT           37.00            223         -              Normal
  10/30/2026 11 PM PDT           37.00            223         0              Normal
  10/31/2026 12 AM PDT           36.99            220         -              Normal
  10/31/2026 01 AM PDT           36.98            218         -              Normal
  10/31/2026 02 AM PDT           36.97            215         -              Normal
  10/31/2026 03 AM PDT           36.97            215         0              Normal
  10/31/2026 04 AM PDT           36.96            213         -              Normal
  10/31/2026 05 AM PDT           36.96            213         0              Normal
  10/31/2026 06 AM PDT           36.95            210         -              Normal
  10/31/2026 07 AM PDT           36.95            210         0              Normal
  10/31/2026 08 AM PDT           36.94            208         -              Normal
  10/31/2026 09 AM PDT           36.93            205         -              Normal
  10/31/2026 10 AM PDT           36.93            205         0              Normal
  10/31/2026 11 AM PDT           36.93            205         0              Normal
  10/31/2026 12 PM PDT           36.93            205         0              Normal
  10/31/2026 01 PM PDT           36.94            208         +              Normal
  10/31/2026 02 PM PDT           36.94            208         0              Normal
  10/31/2026 03 PM PDT           36.94            208         0              Normal
  10/31/2026 04 PM PDT           36.94            208         0              Normal
  10/31/2026 05 PM PDT           36.94            208         0              Normal
  10/31/2026 06 PM PDT           36.94            208         0              Normal
  10/31/2026 07 PM PDT           36.93            205         -              Normal
  10/31/2026 08 PM PDT           36.93            205         0              Normal
  10/31/2026 09 PM PDT           36.93            205         0              Normal
  10/31/2026 10 PM PDT           36.92            203         -              Normal
  10/31/2026 11 PM PDT           36.92            203         0              Normal
  11/01/2026 12 AM PDT           36.91            200         -              Normal
  11/01/2026 01 AM PDT           36.91            200         0              Normal
  11/01/2026 01 AM PST           36.90            198         -              Normal
  11/01/2026 02 AM PST           36.90            198         0              Normal
  11/01/2026 03 AM PST           36.93            205         +              Normal
  11/01/2026 04 AM PST           36.95            210         +              Normal
  11/01/2026 05 AM PST           36.96            213         +              Normal
  11/01/2026 06 AM PST           36.97            215         +              Normal
  11/01/2026 07 AM PST           36.97            215         0              Normal
  11/01/2026 08 AM PST           36.98            218         +              Normal
  11/01/2026 09 AM PST           36.97            215         -              Normal
  11/01/2026 10 AM PST           36.97            215         0              Normal
  11/01/2026 11 AM PST           36.96            213         -              Normal
  11/01/2026 12 PM PST           36.97            215         +              Normal
  11/01/2026 01 PM PST           36.96            213         -              Normal
  11/01/2026 02 PM PST           36.97            215         +              Normal
  11/01/2026 03 PM PST           36.97            215         0              Normal
  11/01/2026 04 PM PST           36.97            215         0              Normal
  11/01/2026 05 PM PST           36.97            215         0              Normal
  11/01/2026 06 PM PST           36.96            213         -              Normal
  11/01/2026 07 PM PST           36.97            215         +              Normal
  11/01/2026 08 PM PST           36.97            215         0              Normal
  11/01/2026 09 PM PST           36.98            218         +              Normal
  11/01/2026 10 PM PST           37.01            225         +              Normal
  11/01/2026 11 PM PST           37.05            235         +              Normal
  11/02/2026 12 AM PST           37.05            235         0              Normal
  11/02/2026 01 AM PST           37.05            235         0              Normal
  11/02/2026 02 AM PST           37.04            233         -              Normal
  11/02/2026 03 AM PST           37.04            233         0              Normal
  11/02/2026 04 AM PST           37.02            228         -              Normal
  11/02/2026 05 AM PST           37.00            223         -              Normal
  11/02/2026 06 AM PST           36.99            220         -              Normal
  11/02/2026 07 AM PST           36.97            215         -              Normal
  11/02/2026 08 AM PST           36.96            213         -              Normal
  11/02/2026 09 AM PST           36.94            208         -              Normal
  11/02/2026 10 AM PST           36.93            205         -              Normal
  11/02/2026 11 AM PST           36.92            203         -              Normal
  11/02/2026 12 PM PST           36.91            200         -              Normal
  11/02/2026 01 PM PST           36.91            200         0              Normal
  11/02/2026 02 PM PST           36.91            200         0              Normal
  11/02/2026 03 PM PST           36.92            203         +              Normal
  11/02/2026 04 PM PST           36.93            205         +              Normal
  11/02/2026 05 PM PST           36.95            210         +              Normal
  11/02/2026 06 PM PST           36.97            215         +              Normal
  11/02/2026 07 PM PST           36.97            215         0              Normal
  11/02/2026 08 PM PST           36.96            213         -              Normal
  11/02/2026 09 PM PST           36.94            208         -              Normal
  11/02/2026 10 PM PST           36.92            203         -              Normal
  11/02/2026 11 PM PST           36.91            200         -              Normal
  11/03/2026 12 AM PST           36.89            196         -              Normal
  11/03/2026 01 AM PST           36.88            194         -              Normal
  11/03/2026 02 AM PST           36.86            190         -              Normal
  11/03/2026 03 AM PST           36.85            187         -              Normal
  11/03/2026 04 AM PST           36.84            185         -              Normal
  11/03/2026 05 AM PST           36.84            185         0              Normal
  11/03/2026 06 AM PST           36.83            183         -              Normal
  11/03/2026 07 AM PST           36.84            185         +              Normal
  11/03/2026 08 AM PST           36.87            192         +              Normal
  11/03/2026 09 AM PST           36.90            198         +              Normal
  11/03/2026 10 AM PST           36.93            205         +              Normal
  11/03/2026 11 AM PST           36.94            208         +              Normal
  11/03/2026 12 PM PST           36.94            208         0              Normal
  11/03/2026 01 PM PST           36.94            208         0              Normal
  11/03/2026 02 PM PST           36.95            210         +              Normal
  11/03/2026 03 PM PST           36.95            210         0              Normal
  11/03/2026 04 PM PST           36.96            213         +              Normal
  11/03/2026 05 PM PST           36.96            213         0              Normal
  11/03/2026 06 PM PST           36.96            213         0              Normal
  11/03/2026 07 PM PST           36.95            210         -              Normal
  11/03/2026 08 PM PST           36.94            208         -              Normal
  11/03/2026 09 PM PST           36.94            208         0              Normal
  11/03/2026 10 PM PST           36.94            208         0              Normal
  11/03/2026 11 PM PST           36.95            210         +              Normal
  11/04/2026 12 AM PST           36.95            210         0              Normal
  11/04/2026 01 AM PST           36.93            205         -              Normal
  11/04/2026 02 AM PST           36.91            200         -              Normal
  11/04/2026 03 AM PST           36.89            196         -              Normal
  11/04/2026 04 AM PST           36.87            192         -              Normal
  11/04/2026 05 AM PST           36.86            190         -              Normal
  11/04/2026 06 AM PST           36.85            187         -              Normal
  11/04/2026 07 AM PST           36.84            185         -              Normal
  11/04/2026 08 AM PST           36.84            185         0              Normal
  11/04/2026 09 AM PST           36.83            183         -              Normal
  11/04/2026 10 AM PST           36.82            181         -              Normal
  11/04/2026 11 AM PST           36.83            183         +              Normal
  11/04/2026 12 PM PST           36.83            183         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/04/2026 01 PM PST           36.82            181                        Normal
  11/04/2026 02 PM PST           36.83            183         +              Normal
  11/04/2026 03 PM PST           36.83            183         0              Normal
  11/04/2026 04 PM PST           36.83            183         0              Normal
  11/04/2026 05 PM PST           36.83            183         0              Normal
  11/04/2026 06 PM PST           36.82            181         -              Normal
  11/04/2026 07 PM PST           36.82            181         0              Normal
  11/04/2026 08 PM PST           36.82            181         0              Normal
  11/04/2026 09 PM PST           36.82            181         0              Normal
  11/04/2026 10 PM PST           36.82            181         0              Normal
  11/04/2026 11 PM PST           36.83            183         +              Normal
  11/05/2026 12 AM PST           36.83            183         0              Normal
  11/05/2026 01 AM PST           36.82            181         -              Normal
  11/05/2026 02 AM PST           36.82            181         0              Normal
  11/05/2026 03 AM PST           36.82            181         0              Normal
  11/05/2026 04 AM PST           36.82            181         0              Normal
  11/05/2026 05 AM PST           36.82            181         0              Normal
  11/05/2026 06 AM PST           36.82            181         0              Normal
  11/05/2026 07 AM PST           36.83            183         +              Normal
  11/05/2026 08 AM PST           36.83            183         0              Normal
  11/05/2026 09 AM PST           36.83            183         0              Normal
  11/05/2026 10 AM PST           36.83            183         0              Normal
  11/05/2026 11 AM PST           36.83            183         0              Normal
  11/05/2026 12 PM PST           36.83            183         0              Normal
  11/05/2026 01 PM PST           36.83            183         0              Normal
  11/05/2026 02 PM PST           36.83            183         0              Normal
  11/05/2026 03 PM PST           36.84            185         +              Normal
  11/05/2026 04 PM PST           36.84            185         0              Normal
  11/05/2026 05 PM PST           36.84            185         0              Normal
  11/05/2026 06 PM PST           36.84            185         0              Normal
  11/05/2026 07 PM PST           36.84            185         0              Normal
  11/05/2026 08 PM PST           36.84            185         0              Normal
  11/05/2026 09 PM PST           36.84            185         0              Normal
  11/05/2026 10 PM PST           36.84            185         0              Normal
  11/05/2026 11 PM PST           36.84            185         0              Normal
  11/06/2026 12 AM PST           36.84            185         0              Normal
  11/06/2026 01 AM PST           36.84            185         0              Normal
  11/06/2026 02 AM PST           36.84            185         0              Normal
  11/06/2026 03 AM PST           36.84            185         0              Normal
  11/06/2026 04 AM PST           36.84            185         0              Normal
  11/06/2026 05 AM PST           36.84            185         0              Normal
  11/06/2026 06 AM PST           36.84            185         0              Normal
  11/06/2026 07 AM PST           36.84            185         0              Normal
  11/06/2026 08 AM PST           36.84            185         0              Normal
  11/06/2026 09 AM PST           36.84            185         0              Normal
  11/06/2026 10 AM PST           36.84            185         0              Normal
  11/06/2026 11 AM PST           36.84            185         0              Normal
  11/06/2026 12 PM PST           36.84            185         0              Normal
  11/06/2026 01 PM PST           36.84            185         0              Normal
  11/06/2026 02 PM PST           36.84            185         0              Normal
  11/06/2026 03 PM PST           36.84            185         0              Normal
  11/06/2026 04 PM PST           36.84            185         0              Normal
  11/06/2026 05 PM PST           36.84            185         0              Normal
  11/06/2026 06 PM PST           36.84            185         0              Normal
  11/06/2026 07 PM PST           36.84            185         0              Normal
  11/06/2026 08 PM PST           36.84            185         0              Normal
  11/06/2026 09 PM PST           36.84            185         0              Normal
  11/06/2026 10 PM PST           36.84            185         0              Normal
  11/06/2026 11 PM PST           36.84            185         0              Normal
  11/07/2026 12 AM PST           36.84            185         0              Normal
  11/07/2026 01 AM PST           36.84            185         0              Normal
  11/07/2026 02 AM PST           36.84            185         0              Normal
  11/07/2026 03 AM PST           36.84            185         0              Normal
  11/07/2026 04 AM PST           36.84            185         0              Normal
  11/07/2026 05 AM PST           36.84            185         0              Normal
  11/07/2026 06 AM PST           36.84            185         0              Normal
  11/07/2026 07 AM PST           36.84            185         0              Normal
  11/07/2026 08 AM PST           36.84            185         0              Normal
  11/07/2026 09 AM PST           36.84            185         0              Normal
  11/07/2026 10 AM PST           36.84            185         0              Normal
  11/07/2026 11 AM PST           36.84            185         0              Normal
  11/07/2026 12 PM PST           36.84            185         0              Normal
  11/07/2026 01 PM PST           36.84            185         0              Normal
  11/07/2026 02 PM PST           36.85            187         +              Normal
  11/07/2026 03 PM PST           36.85            187         0              Normal
  11/07/2026 04 PM PST           36.85            187         0              Normal
  11/07/2026 05 PM PST           36.85            187         0              Normal
  11/07/2026 06 PM PST           36.85            187         0              Normal
  11/07/2026 07 PM PST           36.85            187         0              Normal
  11/07/2026 08 PM PST           36.85            187         0              Normal
  11/07/2026 09 PM PST           36.85            187         0              Normal
  11/07/2026 10 PM PST           36.85            187         0              Normal
  11/07/2026 11 PM PST           36.85            187         0              Normal
  11/08/2026 12 AM PST           36.85            187         0              Normal
  11/08/2026 01 AM PST           36.85            187         0              Normal
  11/08/2026 02 AM PST           36.85            187         0              Normal
  11/08/2026 03 AM PST           36.85            187         0              Normal
  11/08/2026 04 AM PST           36.85            187         0              Normal
  11/08/2026 05 AM PST           36.85            187         0              Normal
  11/08/2026 06 AM PST           36.85            187         0              Normal
  11/08/2026 07 AM PST           36.85            187         0              Normal
  11/08/2026 08 AM PST           36.85            187         0              Normal
  11/08/2026 09 AM PST           36.85            187         0              Normal
  11/08/2026 10 AM PST           36.85            187         0              Normal
  11/08/2026 11 AM PST           36.85            187         0              Normal
  11/08/2026 12 PM PST           36.85            187         0              Normal
  11/08/2026 01 PM PST           36.85            187         0              Normal
  11/08/2026 02 PM PST           36.85            187         0              Normal
  11/08/2026 03 PM PST           36.85            187         0              Normal
  11/08/2026 04 PM PST           36.85            187         0              Normal
  11/08/2026 05 PM PST           36.85            187         0              Normal
  11/08/2026 06 PM PST           36.85            187         0              Normal
  11/08/2026 07 PM PST           36.85            187         0              Normal
  11/08/2026 08 PM PST           36.85            187         0              Normal
  11/08/2026 09 PM PST           36.85            187         0              Normal
  11/08/2026 10 PM PST           36.85            187         0              Normal
  11/08/2026 11 PM PST           36.85            187         0              Normal
  11/09/2026 12 AM PST           36.85            187         0              Normal
  11/09/2026 01 AM PST           36.85            187         0              Normal
  11/09/2026 02 AM PST           36.85            187         0              Normal
  11/09/2026 03 AM PST           36.85            187         0              Normal
  11/09/2026 04 AM PST           36.85            187         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.