SACRAMENTO RIVER - HAMILTON CITY (HAMC1)
Latitude: 39.75º NLongitude: 122.00º WElevation: 125 Feet
Location: Glenn County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Issuance Time: Dec 31 2025 at 1:37 PM PSTNext Issuance: Jan 01 2026 at 9:00 AM PST
Action/Monitor: 142.0 FeetMinor Flood: 147.0 FeetModerate Flood: 149.2 FeetMajor Flood: 150.2 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Sacramento River - Hamilton City (HAMC1)
#
# File Generation Time:  12/31/2025 at 01:37 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/26/2025 at 01:00 PM PST
# Maximum Observed Stage:                       139.51 Feet
# Maximum Observed Flow:                        53088 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/05/2026 at 04:00 AM PST
# Maximum Forecast Stage:                       142.80 Feet
# Maximum Forecast Flow:                        73510 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/26/2025 01 PM PST          139.51          53088                        Normal
  12/26/2025 02 PM PST          139.15          50989         -              Normal
  12/26/2025 03 PM PST          138.79          48923         -              Normal
  12/26/2025 04 PM PST          138.46          47055         -              Normal
  12/26/2025 05 PM PST          138.20          45610         -              Normal
  12/26/2025 06 PM PST          137.86          43729         -              Normal
  12/26/2025 07 PM PST          137.62          42419         -              Normal
  12/26/2025 08 PM PST          137.41          41284         -              Normal
  12/26/2025 09 PM PST          137.27          40537         -              Normal
  12/26/2025 10 PM PST          137.19          40107         -              Normal
  12/26/2025 11 PM PST          137.20          40160         +              Normal
  12/27/2025 12 AM PST          137.30          40700         +              Normal
  12/27/2025 01 AM PST          137.43          41391         +              Normal
  12/27/2025 02 AM PST          137.57          42147         +              Normal
  12/27/2025 03 AM PST          137.73          43021         +              Normal
  12/27/2025 04 AM PST          137.90          43950         +              Normal
  12/27/2025 05 AM PST          138.09          44995         +              Normal
  12/27/2025 06 AM PST          138.29          46105         +              Normal
  12/27/2025 07 AM PST          138.46          47055         +              Normal
  12/27/2025 08 AM PST          138.61          47906         +              Normal
  12/27/2025 09 AM PST          138.73          48580         +              Normal
  12/27/2025 10 AM PST          138.83          49150         +              Normal
  12/27/2025 11 AM PST          138.96          49897         +              Normal
  12/27/2025 12 PM PST          139.04          50357         +              Normal
  12/27/2025 01 PM PST          139.10          50700         +              Normal
  12/27/2025 02 PM PST          139.14          50931         +              Normal
  12/27/2025 03 PM PST          139.11          50758         -              Normal
  12/27/2025 04 PM PST          139.05          50414         -              Normal
  12/27/2025 05 PM PST          138.95          49839         -              Normal
  12/27/2025 06 PM PST          138.81          49037         -              Normal
  12/27/2025 07 PM PST          138.55          47564         -              Normal
  12/27/2025 08 PM PST          138.28          46050         -              Normal
  12/27/2025 09 PM PST          137.97          44334         -              Normal
  12/27/2025 10 PM PST          137.62          42419         -              Normal
  12/27/2025 11 PM PST          137.26          40483         -              Normal
  12/28/2025 12 AM PST          136.90          38630         -              Normal
  12/28/2025 01 AM PST          136.53          36870         -              Normal
  12/28/2025 02 AM PST          136.20          35330         -              Normal
  12/28/2025 03 AM PST          135.88          33850         -              Normal
  12/28/2025 04 AM PST          135.58          32490         -              Normal
  12/28/2025 05 AM PST          135.32          31328         -              Normal
  12/28/2025 06 AM PST          135.07          30217         -              Normal
  12/28/2025 07 AM PST          134.84          29215         -              Normal
  12/28/2025 08 AM PST          134.64          28351         -              Normal
  12/28/2025 09 AM PST          134.45          27534         -              Normal
  12/28/2025 10 AM PST          134.28          26815         -              Normal
  12/28/2025 11 AM PST          134.12          26143         -              Normal
  12/28/2025 12 PM PST          133.97          25516         -              Normal
  12/28/2025 01 PM PST          133.83          24935         -              Normal
  12/28/2025 02 PM PST          133.68          24319         -              Normal
  12/28/2025 03 PM PST          133.55          23794         -              Normal
  12/28/2025 04 PM PST          133.43          23309         -              Normal
  12/28/2025 05 PM PST          133.31          22830         -              Normal
  12/28/2025 06 PM PST          133.20          22390         -              Normal
  12/28/2025 07 PM PST          133.10          21990         -              Normal
  12/28/2025 08 PM PST          133.00          21600         -              Normal
  12/28/2025 09 PM PST          132.92          21287         -              Normal
  12/28/2025 10 PM PST          132.83          20936         -              Normal
  12/28/2025 11 PM PST          132.74          20591         -              Normal
  12/29/2025 12 AM PST          132.66          20283         -              Normal
  12/29/2025 01 AM PST          132.58          19973         -              Normal
  12/29/2025 02 AM PST          132.51          19708         -              Normal
  12/29/2025 03 AM PST          132.44          19441         -              Normal
  12/29/2025 04 AM PST          132.37          19178         -              Normal
  12/29/2025 05 AM PST          132.30          18920         -              Normal
  12/29/2025 06 AM PST          132.24          18691         -              Normal
  12/29/2025 07 AM PST          132.18          18465         -              Normal
  12/29/2025 08 AM PST          132.11          18207         -              Normal
  12/29/2025 09 AM PST          132.05          17989         -              Normal
  12/29/2025 10 AM PST          132.00          17810         -              Normal
  12/29/2025 11 AM PST          131.94          17587         -              Normal
  12/29/2025 12 PM PST          131.89          17404         -              Normal
  12/29/2025 01 PM PST          131.83          17187         -              Normal
  12/29/2025 02 PM PST          131.78          17007         -              Normal
  12/29/2025 03 PM PST          131.73          16827         -              Normal
  12/29/2025 04 PM PST          131.68          16647         -              Normal
  12/29/2025 05 PM PST          131.65          16539         -              Normal
  12/29/2025 06 PM PST          131.64          16503         -              Normal
  12/29/2025 07 PM PST          131.70          16720         +              Normal
  12/29/2025 08 PM PST          131.84          17223         +              Normal
  12/29/2025 09 PM PST          132.01          17846         +              Normal
  12/29/2025 10 PM PST          132.19          18503         +              Normal
  12/29/2025 11 PM PST          132.33          19030         +              Normal
  12/30/2025 12 AM PST          132.43          19403         +              Normal
  12/30/2025 01 AM PST          132.50          19670         +              Normal
  12/30/2025 02 AM PST          132.53          19783         +              Normal
  12/30/2025 03 AM PST          132.55          19859         +              Normal
  12/30/2025 04 AM PST          132.55          19859         0              Normal
  12/30/2025 05 AM PST          132.54          19821         -              Normal
  12/30/2025 06 AM PST          132.53          19783         -              Normal
  12/30/2025 07 AM PST          132.51          19708         -              Normal
  12/30/2025 08 AM PST          132.50          19670         -              Normal
  12/30/2025 09 AM PST          132.48          19593         -              Normal
  12/30/2025 10 AM PST          132.46          19517         -              Normal
  12/30/2025 11 AM PST          132.44          19441         -              Normal
  12/30/2025 12 PM PST          132.42          19365         -              Normal
  12/30/2025 01 PM PST          132.40          19290         -              Normal
  12/30/2025 02 PM PST          132.38          19215         -              Normal
  12/30/2025 03 PM PST          132.37          19178         -              Normal
  12/30/2025 04 PM PST          132.34          19067         -              Normal
  12/30/2025 05 PM PST          132.32          18993         -              Normal
  12/30/2025 06 PM PST          132.29          18882         -              Normal
  12/30/2025 07 PM PST          132.26          18767         -              Normal
  12/30/2025 08 PM PST          132.21          18578         -              Normal
  12/30/2025 09 PM PST          132.16          18391         -              Normal
  12/30/2025 10 PM PST          132.11          18207         -              Normal
  12/30/2025 11 PM PST          132.05          17989         -              Normal
  12/31/2025 12 AM PST          131.98          17735         -              Normal
  12/31/2025 01 AM PST          131.93          17550         -              Normal
  12/31/2025 02 AM PST          131.88          17367         -              Normal
  12/31/2025 03 AM PST          131.84          17223         -              Normal
  12/31/2025 04 AM PST          131.80          17080         -              Normal
  12/31/2025 05 AM PST          131.78          17007         -              Normal
  12/31/2025 06 AM PST          131.75          16899         -              Normal
  12/31/2025 07 AM PST          131.72          16791         -              Normal
  12/31/2025 08 AM PST          131.70          16720         -              Normal
  12/31/2025 09 AM PST          131.67          16611         -              Normal
  12/31/2025 10 AM PST          131.64          16503         -              Normal
  12/31/2025 11 AM PST          131.62          16431         -              Normal
  12/31/2025 12 PM PST          131.59          16324         -              Normal
  12/31/2025 01 PM PST          131.57          16251         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/31/2025 02 PM PST          131.54          16143                        Normal
  12/31/2025 03 PM PST          131.52          16071         -              Normal
  12/31/2025 04 PM PST          131.49          15965         -              Normal
  12/31/2025 05 PM PST          131.47          15894         -              Normal
  12/31/2025 06 PM PST          131.44          15789         -              Normal
  12/31/2025 07 PM PST          131.41          15685         -              Normal
  12/31/2025 08 PM PST          131.38          15579         -              Normal
  12/31/2025 09 PM PST          131.35          15474         -              Normal
  12/31/2025 10 PM PST          131.31          15335         -              Normal
  12/31/2025 11 PM PST          131.27          15197         -              Normal
  01/01/2026 12 AM PST          131.22          15027         -              Normal
  01/01/2026 01 AM PST          131.18          14889         -              Normal
  01/01/2026 02 AM PST          131.13          14714         -              Normal
  01/01/2026 03 AM PST          131.09          14576         -              Normal
  01/01/2026 04 AM PST          131.06          14473         -              Normal
  01/01/2026 05 AM PST          131.02          14337         -              Normal
  01/01/2026 06 AM PST          131.00          14270         -              Normal
  01/01/2026 07 AM PST          130.97          14167         -              Normal
  01/01/2026 08 AM PST          130.95          14099         -              Normal
  01/01/2026 09 AM PST          130.93          14031         -              Normal
  01/01/2026 10 AM PST          130.92          13997         -              Normal
  01/01/2026 11 AM PST          130.92          13997         0              Normal
  01/01/2026 12 PM PST          130.94          14065         +              Normal
  01/01/2026 01 PM PST          130.98          14201         +              Normal
  01/01/2026 02 PM PST          131.04          14405         +              Normal
  01/01/2026 03 PM PST          131.15          14784         +              Normal
  01/01/2026 04 PM PST          131.30          15300         +              Normal
  01/01/2026 05 PM PST          131.50          16000         +              Normal
  01/01/2026 06 PM PST          131.74          16863         +              Normal
  01/01/2026 07 PM PST          132.02          17881         +              Normal
  01/01/2026 08 PM PST          132.31          18957         +              Normal
  01/01/2026 09 PM PST          132.59          20012         +              Normal
  01/01/2026 10 PM PST          132.87          21092         +              Normal
  01/01/2026 11 PM PST          133.15          22189         +              Normal
  01/02/2026 12 AM PST          133.40          23190         +              Normal
  01/02/2026 01 AM PST          133.63          24119         +              Normal
  01/02/2026 02 AM PST          133.84          24977         +              Normal
  01/02/2026 03 AM PST          134.02          25723         +              Normal
  01/02/2026 04 AM PST          134.18          26395         +              Normal
  01/02/2026 05 AM PST          134.33          27025         +              Normal
  01/02/2026 06 AM PST          134.48          27663         +              Normal
  01/02/2026 07 AM PST          134.63          28308         +              Normal
  01/02/2026 08 AM PST          134.77          28910         +              Normal
  01/02/2026 09 AM PST          134.91          29523         +              Normal
  01/02/2026 10 AM PST          135.03          30041         +              Normal
  01/02/2026 11 AM PST          135.13          30481         +              Normal
  01/02/2026 12 PM PST          135.22          30880         +              Normal
  01/02/2026 01 PM PST          135.30          31240         +              Normal
  01/02/2026 02 PM PST          135.35          31459         +              Normal
  01/02/2026 03 PM PST          135.38          31592         +              Normal
  01/02/2026 04 PM PST          135.38          31592         0              Normal
  01/02/2026 05 PM PST          135.37          31547         -              Normal
  01/02/2026 06 PM PST          135.34          31415         -              Normal
  01/02/2026 07 PM PST          135.29          31195         -              Normal
  01/02/2026 08 PM PST          135.24          30969         -              Normal
  01/02/2026 09 PM PST          135.17          30657         -              Normal
  01/02/2026 10 PM PST          135.11          30394         -              Normal
  01/02/2026 11 PM PST          135.03          30041         -              Normal
  01/03/2026 12 AM PST          134.96          29737         -              Normal
  01/03/2026 01 AM PST          134.87          29347         -              Normal
  01/03/2026 02 AM PST          134.80          29040         -              Normal
  01/03/2026 03 AM PST          134.77          28910         -              Normal
  01/03/2026 04 AM PST          134.80          29040         +              Normal
  01/03/2026 05 AM PST          134.87          29347         +              Normal
  01/03/2026 06 AM PST          134.98          29824         +              Normal
  01/03/2026 07 AM PST          135.16          30613         +              Normal
  01/03/2026 08 AM PST          135.45          31904         +              Normal
  01/03/2026 09 AM PST          135.86          33759         +              Normal
  01/03/2026 10 AM PST          136.35          36024         +              Normal
  01/03/2026 11 AM PST          136.92          38724         +              Normal
  01/03/2026 12 PM PST          137.48          41661         +              Normal
  01/03/2026 01 PM PST          138.00          44500         +              Normal
  01/03/2026 02 PM PST          138.47          47111         +              Normal
  01/03/2026 03 PM PST          138.90          49550         +              Normal
  01/03/2026 04 PM PST          139.30          51860         +              Normal
  01/03/2026 05 PM PST          139.69          54141         +              Normal
  01/03/2026 06 PM PST          140.07          56399         +              Normal
  01/03/2026 07 PM PST          140.42          58502         +              Normal
  01/03/2026 08 PM PST          140.73          60392         +              Normal
  01/03/2026 09 PM PST          141.00          62050         +              Normal
  01/03/2026 10 PM PST          141.22          63414         +              Normal
  01/03/2026 11 PM PST          141.40          64540         +              Normal
  01/04/2026 12 AM PST          141.56          65541         +              Normal
  01/04/2026 01 AM PST          141.69          66366         +              Normal
  01/04/2026 02 AM PST          141.80          67060         +              Normal
  01/04/2026 03 AM PST          141.89          67627         +              Normal
  01/04/2026 04 AM PST          141.97          68137         +              Normal
  01/04/2026 05 AM PST          142.02          68458         +      Action/Monitor
  01/04/2026 06 AM PST          142.07          68777         +      Action/Monitor
  01/04/2026 07 AM PST          142.11          69034         +      Action/Monitor
  01/04/2026 08 AM PST          142.15          69289         +      Action/Monitor
  01/04/2026 09 AM PST          142.18          69482         +      Action/Monitor
  01/04/2026 10 AM PST          142.21          69675         +      Action/Monitor
  01/04/2026 11 AM PST          142.23          69804         +      Action/Monitor
  01/04/2026 12 PM PST          142.24          69869         +      Action/Monitor
  01/04/2026 01 PM PST          142.24          69869         0      Action/Monitor
  01/04/2026 02 PM PST          142.24          69869         0      Action/Monitor
  01/04/2026 03 PM PST          142.23          69804         -      Action/Monitor
  01/04/2026 04 PM PST          142.22          69740         -      Action/Monitor
  01/04/2026 05 PM PST          142.22          69740         0      Action/Monitor
  01/04/2026 06 PM PST          142.22          69740         0      Action/Monitor
  01/04/2026 07 PM PST          142.23          69804         +      Action/Monitor
  01/04/2026 08 PM PST          142.26          69999         +      Action/Monitor
  01/04/2026 09 PM PST          142.31          70324         +      Action/Monitor
  01/04/2026 10 PM PST          142.37          70707         +      Action/Monitor
  01/04/2026 11 PM PST          142.43          71094         +      Action/Monitor
  01/05/2026 12 AM PST          142.51          71615         +      Action/Monitor
  01/05/2026 01 AM PST          142.59          72135         +      Action/Monitor
  01/05/2026 02 AM PST          142.67          72654         +      Action/Monitor
  01/05/2026 03 AM PST          142.74          73113         +      Action/Monitor
  01/05/2026 04 AM PST          142.80          73510         +      Action/Monitor
#
# 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.