TUOLUMNE RIVER - MODESTO (MDSC1)
Latitude: 37.63º NLongitude: 120.99º WElevation: 60 Feet
Location: Stanislaus County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Dec 26 2025 at 2:51 PM PSTNext Issuance: Dec 27 2025 at 9:00 AM PST
Action/Monitor: 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:  12/26/2025 at 02:51 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/22/2025 at 03:00 AM PST
# Maximum Observed Stage:                       49.28 Feet
# Maximum Observed Flow:                        5797 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/27/2025 at 02:00 AM PST
# Maximum Forecast Stage:                       45.25 Feet
# Maximum Forecast Flow:                        3403 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/21/2025 02 PM PST           48.80           5465                        Normal
  12/21/2025 03 PM PST           48.84           5492         +              Normal
  12/21/2025 04 PM PST           48.89           5526         +              Normal
  12/21/2025 05 PM PST           48.93           5553         +              Normal
  12/21/2025 06 PM PST           48.96           5574         +              Normal
  12/21/2025 07 PM PST           49.02           5615         +              Normal
  12/21/2025 08 PM PST           49.07           5650         +              Normal
  12/21/2025 09 PM PST           49.12           5685         +              Normal
  12/21/2025 10 PM PST           49.16           5713         +              Normal
  12/21/2025 11 PM PST           49.20           5740         +              Normal
  12/22/2025 12 AM PST           49.23           5761         +              Normal
  12/22/2025 01 AM PST           49.27           5790         +              Normal
  12/22/2025 02 AM PST           49.28           5797         +              Normal
  12/22/2025 03 AM PST           49.28           5797         0              Normal
  12/22/2025 04 AM PST           49.27           5790         -              Normal
  12/22/2025 05 AM PST           49.25           5776         -              Normal
  12/22/2025 06 AM PST           49.23           5761         -              Normal
  12/22/2025 07 AM PST           49.20           5740         -              Normal
  12/22/2025 08 AM PST           49.17           5720         -              Normal
  12/22/2025 09 AM PST           49.13           5692         -              Normal
  12/22/2025 10 AM PST           49.10           5671         -              Normal
  12/22/2025 11 AM PST           49.06           5643         -              Normal
  12/22/2025 12 PM PST           49.03           5622         -              Normal
  12/22/2025 01 PM PST           48.98           5588         -              Normal
  12/22/2025 02 PM PST           48.94           5560         -              Normal
  12/22/2025 03 PM PST           48.93           5553         -              Normal
  12/22/2025 04 PM PST           48.90           5533         -              Normal
  12/22/2025 05 PM PST           48.88           5519         -              Normal
  12/22/2025 06 PM PST           48.85           5499         -              Normal
  12/22/2025 07 PM PST           48.83           5485         -              Normal
  12/22/2025 08 PM PST           48.81           5471         -              Normal
  12/22/2025 09 PM PST           48.79           5458         -              Normal
  12/22/2025 10 PM PST           48.77           5444         -              Normal
  12/22/2025 11 PM PST           48.75           5431         -              Normal
  12/23/2025 12 AM PST           48.73           5417         -              Normal
  12/23/2025 01 AM PST           48.70           5397         -              Normal
  12/23/2025 02 AM PST           48.68           5383         -              Normal
  12/23/2025 03 AM PST           48.63           5350         -              Normal
  12/23/2025 04 AM PST           48.58           5316         -              Normal
  12/23/2025 05 AM PST           48.53           5283         -              Normal
  12/23/2025 06 AM PST           48.47           5243         -              Normal
  12/23/2025 07 AM PST           48.39           5190         -              Normal
  12/23/2025 08 AM PST           48.34           5157         -              Normal
  12/23/2025 09 AM PST           48.28           5117         -              Normal
  12/23/2025 10 AM PST           48.21           5072         -              Normal
  12/23/2025 11 AM PST           48.14           5026         -              Normal
  12/23/2025 12 PM PST           48.08           4987         -              Normal
  12/23/2025 01 PM PST           48.02           4950         -              Normal
  12/23/2025 02 PM PST           47.98           4925         -              Normal
  12/23/2025 03 PM PST           47.93           4895         -              Normal
  12/23/2025 04 PM PST           47.88           4864         -              Normal
  12/23/2025 05 PM PST           47.84           4840         -              Normal
  12/23/2025 06 PM PST           47.82           4827         -              Normal
  12/23/2025 07 PM PST           47.77           4797         -              Normal
  12/23/2025 08 PM PST           47.75           4785         -              Normal
  12/23/2025 09 PM PST           47.71           4761         -              Normal
  12/23/2025 10 PM PST           47.69           4749         -              Normal
  12/23/2025 11 PM PST           47.67           4737         -              Normal
  12/24/2025 12 AM PST           47.65           4724         -              Normal
  12/24/2025 01 AM PST           47.61           4700         -              Normal
  12/24/2025 02 AM PST           47.60           4694         -              Normal
  12/24/2025 03 AM PST           47.59           4688         -              Normal
  12/24/2025 04 AM PST           47.59           4688         0              Normal
  12/24/2025 05 AM PST           47.58           4682         -              Normal
  12/24/2025 06 AM PST           47.55           4665         -              Normal
  12/24/2025 07 AM PST           47.64           4718         +              Normal
  12/24/2025 08 AM PST           47.71           4761         +              Normal
  12/24/2025 09 AM PST           47.69           4749         -              Normal
  12/24/2025 10 AM PST           47.63           4712         -              Normal
  12/24/2025 11 AM PST           47.59           4688         -              Normal
  12/24/2025 12 PM PST           47.55           4665         -              Normal
  12/24/2025 01 PM PST           47.49           4629         -              Normal
  12/24/2025 02 PM PST           47.36           4552         -              Normal
  12/24/2025 03 PM PST           47.24           4481         -              Normal
  12/24/2025 04 PM PST           47.10           4400         -              Normal
  12/24/2025 05 PM PST           46.98           4331         -              Normal
  12/24/2025 06 PM PST           46.86           4263         -              Normal
  12/24/2025 07 PM PST           46.75           4200         -              Normal
  12/24/2025 08 PM PST           46.64           4139         -              Normal
  12/24/2025 09 PM PST           46.53           4078         -              Normal
  12/24/2025 10 PM PST           46.42           4017         -              Normal
  12/24/2025 11 PM PST           46.29           3946         -              Normal
  12/25/2025 12 AM PST           46.15           3870         -              Normal
  12/25/2025 01 AM PST           46.02           3801         -              Normal
  12/25/2025 02 AM PST           45.88           3727         -              Normal
  12/25/2025 03 AM PST           45.74           3653         -              Normal
  12/25/2025 04 AM PST           45.58           3571         -              Normal
  12/25/2025 05 AM PST           45.42           3489         -              Normal
  12/25/2025 06 AM PST           45.32           3438         -              Normal
  12/25/2025 07 AM PST           45.23           3393         -              Normal
  12/25/2025 08 AM PST           45.10           3329         -              Normal
  12/25/2025 09 AM PST           44.97           3265         -              Normal
  12/25/2025 10 AM PST           44.82           3192         -              Normal
  12/25/2025 11 AM PST           44.68           3125         -              Normal
  12/25/2025 12 PM PST           44.54           3059         -              Normal
  12/25/2025 01 PM PST           44.43           3007         -              Normal
  12/25/2025 02 PM PST           44.32           2957         -              Normal
  12/25/2025 03 PM PST           44.22           2911         -              Normal
  12/25/2025 04 PM PST           44.14           2875         -              Normal
  12/25/2025 05 PM PST           44.06           2838         -              Normal
  12/25/2025 06 PM PST           44.00           2811         -              Normal
  12/25/2025 07 PM PST           43.96           2793         -              Normal
  12/25/2025 08 PM PST           43.89           2762         -              Normal
  12/25/2025 09 PM PST           43.85           2744         -              Normal
  12/25/2025 10 PM PST           43.80           2721         -              Normal
  12/25/2025 11 PM PST           43.79           2717         -              Normal
  12/26/2025 12 AM PST           43.89           2762         +              Normal
  12/26/2025 01 AM PST           43.96           2793         +              Normal
  12/26/2025 02 AM PST           43.99           2807         +              Normal
  12/26/2025 03 AM PST           43.98           2802         -              Normal
  12/26/2025 04 AM PST           43.96           2793         -              Normal
  12/26/2025 05 AM PST           43.90           2766         -              Normal
  12/26/2025 06 AM PST           43.84           2739         -              Normal
  12/26/2025 07 AM PST           43.81           2726         -              Normal
  12/26/2025 08 AM PST           43.71           2681         -              Normal
  12/26/2025 09 AM PST           43.70           2677         -              Normal
  12/26/2025 10 AM PST           43.67           2664         -              Normal
  12/26/2025 11 AM PST           43.58           2624         -              Normal
  12/26/2025 12 PM PST           43.54           2606         -              Normal
  12/26/2025 01 PM PST           43.54           2606         0              Normal
  12/26/2025 02 PM PST           43.54           2606         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/26/2025 03 PM PST           43.54           2606                        Normal
  12/26/2025 04 PM PST           43.53           2602         -              Normal
  12/26/2025 05 PM PST           43.50           2588         -              Normal
  12/26/2025 06 PM PST           43.48           2580         -              Normal
  12/26/2025 07 PM PST           43.57           2619         +              Normal
  12/26/2025 08 PM PST           43.83           2735         +              Normal
  12/26/2025 09 PM PST           44.22           2911         +              Normal
  12/26/2025 10 PM PST           44.62           3096         +              Normal
  12/26/2025 11 PM PST           44.92           3241         +              Normal
  12/27/2025 12 AM PST           45.12           3339         +              Normal
  12/27/2025 01 AM PST           45.23           3393         +              Normal
  12/27/2025 02 AM PST           45.25           3403         +              Normal
  12/27/2025 03 AM PST           45.20           3378         -              Normal
  12/27/2025 04 AM PST           45.10           3329         -              Normal
  12/27/2025 05 AM PST           44.93           3245         -              Normal
  12/27/2025 06 AM PST           44.72           3144         -              Normal
  12/27/2025 07 AM PST           44.46           3021         -              Normal
  12/27/2025 08 AM PST           44.16           2884         -              Normal
  12/27/2025 09 AM PST           43.86           2748         -              Normal
  12/27/2025 10 AM PST           43.57           2619         -              Normal
  12/27/2025 11 AM PST           43.30           2501         -              Normal
  12/27/2025 12 PM PST           43.07           2401         -              Normal
  12/27/2025 01 PM PST           42.86           2311         -              Normal
  12/27/2025 02 PM PST           42.68           2235         -              Normal
  12/27/2025 03 PM PST           42.53           2171         -              Normal
  12/27/2025 04 PM PST           42.42           2126         -              Normal
  12/27/2025 05 PM PST           42.33           2088         -              Normal
  12/27/2025 06 PM PST           42.24           2051         -              Normal
  12/27/2025 07 PM PST           42.17           2022         -              Normal
  12/27/2025 08 PM PST           42.10           1994         -              Normal
  12/27/2025 09 PM PST           42.02           1961         -              Normal
  12/27/2025 10 PM PST           41.94           1929         -              Normal
  12/27/2025 11 PM PST           41.85           1892         -              Normal
  12/28/2025 12 AM PST           41.76           1856         -              Normal
  12/28/2025 01 AM PST           41.67           1820         -              Normal
  12/28/2025 02 AM PST           41.56           1777         -              Normal
  12/28/2025 03 AM PST           41.46           1737         -              Normal
  12/28/2025 04 AM PST           41.35           1694         -              Normal
  12/28/2025 05 AM PST           41.25           1655         -              Normal
  12/28/2025 06 AM PST           41.14           1613         -              Normal
  12/28/2025 07 AM PST           41.04           1574         -              Normal
  12/28/2025 08 AM PST           40.94           1536         -              Normal
  12/28/2025 09 AM PST           40.84           1499         -              Normal
  12/28/2025 10 AM PST           40.75           1465         -              Normal
  12/28/2025 11 AM PST           40.66           1431         -              Normal
  12/28/2025 12 PM PST           40.57           1398         -              Normal
  12/28/2025 01 PM PST           40.49           1369         -              Normal
  12/28/2025 02 PM PST           40.41           1339         -              Normal
  12/28/2025 03 PM PST           40.33           1310         -              Normal
  12/28/2025 04 PM PST           40.26           1285         -              Normal
  12/28/2025 05 PM PST           40.18           1256         -              Normal
  12/28/2025 06 PM PST           40.12           1235         -              Normal
  12/28/2025 07 PM PST           40.05           1210         -              Normal
  12/28/2025 08 PM PST           39.99           1189         -              Normal
  12/28/2025 09 PM PST           39.92           1164         -              Normal
  12/28/2025 10 PM PST           39.86           1143         -              Normal
  12/28/2025 11 PM PST           39.79           1119         -              Normal
  12/29/2025 12 AM PST           39.73           1098         -              Normal
  12/29/2025 01 AM PST           39.67           1078         -              Normal
  12/29/2025 02 AM PST           39.61           1057         -              Normal
  12/29/2025 03 AM PST           39.55           1037         -              Normal
  12/29/2025 04 AM PST           39.50           1020         -              Normal
  12/29/2025 05 AM PST           39.45           1003         -              Normal
  12/29/2025 06 AM PST           39.40            986         -              Normal
  12/29/2025 07 AM PST           39.35            970         -              Normal
  12/29/2025 08 AM PST           39.31            957         -              Normal
  12/29/2025 09 AM PST           39.27            943         -              Normal
  12/29/2025 10 AM PST           39.23            930         -              Normal
  12/29/2025 11 AM PST           39.19            917         -              Normal
  12/29/2025 12 PM PST           39.16            907         -              Normal
  12/29/2025 01 PM PST           39.13            898         -              Normal
  12/29/2025 02 PM PST           39.10            888         -              Normal
  12/29/2025 03 PM PST           39.07            878         -              Normal
  12/29/2025 04 PM PST           39.05            872         -              Normal
  12/29/2025 05 PM PST           39.03            865         -              Normal
  12/29/2025 06 PM PST           39.01            859         -              Normal
  12/29/2025 07 PM PST           38.99            852         -              Normal
  12/29/2025 08 PM PST           38.97            846         -              Normal
  12/29/2025 09 PM PST           38.96            842         -              Normal
  12/29/2025 10 PM PST           38.94            836         -              Normal
  12/29/2025 11 PM PST           38.93            832         -              Normal
  12/30/2025 12 AM PST           38.92            829         -              Normal
  12/30/2025 01 AM PST           38.91            826         -              Normal
  12/30/2025 02 AM PST           38.90            822         -              Normal
  12/30/2025 03 AM PST           38.89            819         -              Normal
  12/30/2025 04 AM PST           38.88            816         -              Normal
  12/30/2025 05 AM PST           38.87            813         -              Normal
  12/30/2025 06 AM PST           38.86            809         -              Normal
  12/30/2025 07 AM PST           38.86            809         0              Normal
  12/30/2025 08 AM PST           38.85            806         -              Normal
  12/30/2025 09 AM PST           38.84            803         -              Normal
  12/30/2025 10 AM PST           38.84            803         0              Normal
  12/30/2025 11 AM PST           38.83            799         -              Normal
  12/30/2025 12 PM PST           38.83            799         0              Normal
  12/30/2025 01 PM PST           38.82            796         -              Normal
  12/30/2025 02 PM PST           38.82            796         0              Normal
  12/30/2025 03 PM PST           38.82            796         0              Normal
  12/30/2025 04 PM PST           38.81            793         -              Normal
  12/30/2025 05 PM PST           38.81            793         0              Normal
  12/30/2025 06 PM PST           38.81            793         0              Normal
  12/30/2025 07 PM PST           38.80            790         -              Normal
  12/30/2025 08 PM PST           38.80            790         0              Normal
  12/30/2025 09 PM PST           38.80            790         0              Normal
  12/30/2025 10 PM PST           38.80            790         0              Normal
  12/30/2025 11 PM PST           38.80            790         0              Normal
  12/31/2025 12 AM PST           38.79            786         -              Normal
  12/31/2025 01 AM PST           38.79            786         0              Normal
  12/31/2025 02 AM PST           38.79            786         0              Normal
  12/31/2025 03 AM PST           38.79            786         0              Normal
  12/31/2025 04 AM PST           38.79            786         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.