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 26 2025 at 1:22 PM PSTNext Issuance: Dec 27 2025 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:  12/26/2025 at 01:22 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/25/2025 at 09:00 PM PST
# Maximum Observed Stage:                       143.08 Feet
# Maximum Observed Flow:                        75348 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/26/2025 at 02:00 PM PST
# Maximum Forecast Stage:                       139.10 Feet
# Maximum Forecast Flow:                        50700 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/21/2025 01 PM PST          133.60          24000                        Normal
  12/21/2025 02 PM PST          133.90          25230         +              Normal
  12/21/2025 03 PM PST          134.23          26605         +              Normal
  12/21/2025 04 PM PST          134.55          27964         +              Normal
  12/21/2025 05 PM PST          134.91          29523         +              Normal
  12/21/2025 06 PM PST          135.34          31415         +              Normal
  12/21/2025 07 PM PST          135.74          33213         +              Normal
  12/21/2025 08 PM PST          136.16          35141         +              Normal
  12/21/2025 09 PM PST          136.56          37011         +              Normal
  12/21/2025 10 PM PST          136.92          38724         +              Normal
  12/21/2025 11 PM PST          137.28          40591         +              Normal
  12/22/2025 12 AM PST          137.61          42365         +              Normal
  12/22/2025 01 AM PST          137.96          44279         +              Normal
  12/22/2025 02 AM PST          138.29          46105         +              Normal
  12/22/2025 03 AM PST          138.63          48017         +              Normal
  12/22/2025 04 AM PST          138.92          49665         +              Normal
  12/22/2025 05 AM PST          139.17          51105         +              Normal
  12/22/2025 06 AM PST          139.41          52499         +              Normal
  12/22/2025 07 AM PST          139.68          54082         +              Normal
  12/22/2025 08 AM PST          139.96          55739         +              Normal
  12/22/2025 09 AM PST          140.26          57539         +              Normal
  12/22/2025 10 AM PST          140.57          59416         +              Normal
  12/22/2025 11 AM PST          140.88          61308         +              Normal
  12/22/2025 12 PM PST          141.21          63352         +              Normal
  12/22/2025 01 PM PST          141.50          65170         +              Normal
  12/22/2025 02 PM PST          141.77          66870         +              Normal
  12/22/2025 03 PM PST          142.02          68458         +      Action/Monitor
  12/22/2025 04 PM PST          142.22          69740         +      Action/Monitor
  12/22/2025 05 PM PST          142.36          70643         +      Action/Monitor
  12/22/2025 06 PM PST          142.49          71485         +      Action/Monitor
  12/22/2025 07 PM PST          142.56          71939         +      Action/Monitor
  12/22/2025 08 PM PST          142.58          72070         +      Action/Monitor
  12/22/2025 09 PM PST          142.54          71809         -      Action/Monitor
  12/22/2025 10 PM PST          142.45          71224         -      Action/Monitor
  12/22/2025 11 PM PST          142.28          70130         -      Action/Monitor
  12/23/2025 12 AM PST          142.05          68649         -      Action/Monitor
  12/23/2025 01 AM PST          141.71          66493         -              Normal
  12/23/2025 02 AM PST          141.33          64098         -              Normal
  12/23/2025 03 AM PST          140.90          61430         -              Normal
  12/23/2025 04 AM PST          140.43          58562         -              Normal
  12/23/2025 05 AM PST          139.96          55739         -              Normal
  12/23/2025 06 AM PST          139.50          53030         -              Normal
  12/23/2025 07 AM PST          139.09          50643         -              Normal
  12/23/2025 08 AM PST          138.71          48467         -              Normal
  12/23/2025 09 AM PST          138.38          46607         -              Normal
  12/23/2025 10 AM PST          138.07          44884         -              Normal
  12/23/2025 11 AM PST          137.79          43346         -              Normal
  12/23/2025 12 PM PST          137.56          42093         -              Normal
  12/23/2025 01 PM PST          137.39          41177         -              Normal
  12/23/2025 02 PM PST          137.25          40429         -              Normal
  12/23/2025 03 PM PST          137.14          39841         -              Normal
  12/23/2025 04 PM PST          137.07          39470         -              Normal
  12/23/2025 05 PM PST          137.01          39153         -              Normal
  12/23/2025 06 PM PST          136.96          38911         -              Normal
  12/23/2025 07 PM PST          136.93          38770         -              Normal
  12/23/2025 08 PM PST          136.89          38582         -              Normal
  12/23/2025 09 PM PST          136.83          38293         -              Normal
  12/23/2025 10 PM PST          136.78          38054         -              Normal
  12/23/2025 11 PM PST          136.72          37766         -              Normal
  12/24/2025 12 AM PST          136.57          37058         -              Normal
  12/24/2025 01 AM PST          136.41          36307         -              Normal
  12/24/2025 02 AM PST          136.22          35422         -              Normal
  12/24/2025 03 AM PST          135.99          34354         -              Normal
  12/24/2025 04 AM PST          135.76          33305         -              Normal
  12/24/2025 05 AM PST          135.54          32309         -              Normal
  12/24/2025 06 AM PST          135.31          31284         -              Normal
  12/24/2025 07 AM PST          135.11          30394         -              Normal
  12/24/2025 08 AM PST          135.04          30085         -              Normal
  12/24/2025 09 AM PST          135.14          30525         +              Normal
  12/24/2025 10 AM PST          135.48          32040         +              Normal
  12/24/2025 11 AM PST          136.05          34629         +              Normal
  12/24/2025 12 PM PST          136.75          37909         +              Normal
  12/24/2025 01 PM PST          137.47          41607         +              Normal
  12/24/2025 02 PM PST          138.05          44774         +              Normal
  12/24/2025 03 PM PST          138.55          47564         +              Normal
  12/24/2025 04 PM PST          138.86          49321         +              Normal
  12/24/2025 05 PM PST          139.08          50586         +              Normal
  12/24/2025 06 PM PST          139.25          51569         +              Normal
  12/24/2025 07 PM PST          139.32          51976         +              Normal
  12/24/2025 08 PM PST          139.40          52440         +              Normal
  12/24/2025 09 PM PST          139.51          53088         +              Normal
  12/24/2025 10 PM PST          139.50          53030         -              Normal
  12/24/2025 11 PM PST          139.45          52734         -              Normal
  12/25/2025 12 AM PST          139.41          52499         -              Normal
  12/25/2025 01 AM PST          139.39          52382         -              Normal
  12/25/2025 02 AM PST          139.40          52440         +              Normal
  12/25/2025 03 AM PST          139.55          53319         +              Normal
  12/25/2025 04 AM PST          139.75          54494         +              Normal
  12/25/2025 05 AM PST          140.03          56159         +              Normal
  12/25/2025 06 AM PST          140.36          58139         +              Normal
  12/25/2025 07 AM PST          140.65          59904         +              Normal
  12/25/2025 08 AM PST          140.90          61430         +              Normal
  12/25/2025 09 AM PST          141.11          62732         +              Normal
  12/25/2025 10 AM PST          141.29          63848         +              Normal
  12/25/2025 11 AM PST          141.55          65479         +              Normal
  12/25/2025 12 PM PST          141.78          66934         +              Normal
  12/25/2025 01 PM PST          142.05          68649         +      Action/Monitor
  12/25/2025 02 PM PST          142.35          70579         +      Action/Monitor
  12/25/2025 03 PM PST          142.54          71809         +      Action/Monitor
  12/25/2025 04 PM PST          142.77          73311         +      Action/Monitor
  12/25/2025 05 PM PST          142.88          74030         +      Action/Monitor
  12/25/2025 06 PM PST          142.96          74555         +      Action/Monitor
  12/25/2025 07 PM PST          143.03          75017         +      Action/Monitor
  12/25/2025 08 PM PST          143.08          75348         +      Action/Monitor
  12/25/2025 09 PM PST          143.08          75348         0      Action/Monitor
  12/25/2025 10 PM PST          143.07          75281         -      Action/Monitor
  12/25/2025 11 PM PST          143.01          74886         -      Action/Monitor
  12/26/2025 12 AM PST          142.93          74357         -      Action/Monitor
  12/26/2025 01 AM PST          142.80          73510         -      Action/Monitor
  12/26/2025 02 AM PST          142.63          72394         -      Action/Monitor
  12/26/2025 03 AM PST          142.42          71030         -      Action/Monitor
  12/26/2025 04 AM PST          142.20          69610         -      Action/Monitor
  12/26/2025 05 AM PST          141.98          68202         -              Normal
  12/26/2025 06 AM PST          141.73          66618         -              Normal
  12/26/2025 07 AM PST          141.46          64917         -              Normal
  12/26/2025 08 AM PST          141.18          63166         -              Normal
  12/26/2025 09 AM PST          140.88          61308         -              Normal
  12/26/2025 10 AM PST          140.56          59355         -              Normal
  12/26/2025 11 AM PST          140.23          57359         -              Normal
  12/26/2025 12 PM PST          139.85          55084         -              Normal
  12/26/2025 01 PM PST          139.47          52852         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/26/2025 02 PM PST          139.10          50700                        Normal
  12/26/2025 03 PM PST          138.72          48523         -              Normal
  12/26/2025 04 PM PST          138.36          46495         -              Normal
  12/26/2025 05 PM PST          138.04          44719         -              Normal
  12/26/2025 06 PM PST          137.75          43129         -              Normal
  12/26/2025 07 PM PST          137.51          41824         -              Normal
  12/26/2025 08 PM PST          137.30          40700         -              Normal
  12/26/2025 09 PM PST          137.15          39894         -              Normal
  12/26/2025 10 PM PST          137.03          39258         -              Normal
  12/26/2025 11 PM PST          136.91          38677         -              Normal
  12/27/2025 12 AM PST          136.81          38198         -              Normal
  12/27/2025 01 AM PST          136.70          37670         -              Normal
  12/27/2025 02 AM PST          136.57          37058         -              Normal
  12/27/2025 03 AM PST          136.43          36400         -              Normal
  12/27/2025 04 AM PST          136.29          35744         -              Normal
  12/27/2025 05 AM PST          136.19          35283         -              Normal
  12/27/2025 06 AM PST          136.11          34907         -              Normal
  12/27/2025 07 AM PST          136.08          34768         -              Normal
  12/27/2025 08 AM PST          136.06          34675         -              Normal
  12/27/2025 09 AM PST          136.06          34675         0              Normal
  12/27/2025 10 AM PST          136.05          34629         -              Normal
  12/27/2025 11 AM PST          136.03          34537         -              Normal
  12/27/2025 12 PM PST          136.04          34583         +              Normal
  12/27/2025 01 PM PST          136.03          34537         -              Normal
  12/27/2025 02 PM PST          135.99          34354         -              Normal
  12/27/2025 03 PM PST          135.92          34032         -              Normal
  12/27/2025 04 PM PST          135.83          33624         -              Normal
  12/27/2025 05 PM PST          135.72          33122         -              Normal
  12/27/2025 06 PM PST          135.58          32490         -              Normal
  12/27/2025 07 PM PST          135.44          31859         -              Normal
  12/27/2025 08 PM PST          135.28          31150         -              Normal
  12/27/2025 09 PM PST          135.11          30394         -              Normal
  12/27/2025 10 PM PST          134.94          29651         -              Normal
  12/27/2025 11 PM PST          134.75          28824         -              Normal
  12/28/2025 12 AM PST          134.56          28007         -              Normal
  12/28/2025 01 AM PST          134.36          27151         -              Normal
  12/28/2025 02 AM PST          134.17          26353         -              Normal
  12/28/2025 03 AM PST          133.97          25516         -              Normal
  12/28/2025 04 AM PST          133.79          24769         -              Normal
  12/28/2025 05 AM PST          133.60          24000         -              Normal
  12/28/2025 06 AM PST          133.42          23269         -              Normal
  12/28/2025 07 AM PST          133.25          22589         -              Normal
  12/28/2025 08 AM PST          133.09          21951         -              Normal
  12/28/2025 09 AM PST          132.96          21443         -              Normal
  12/28/2025 10 AM PST          132.84          20975         -              Normal
  12/28/2025 11 AM PST          132.73          20553         -              Normal
  12/28/2025 12 PM PST          132.63          20166         -              Normal
  12/28/2025 01 PM PST          132.55          19859         -              Normal
  12/28/2025 02 PM PST          132.47          19555         -              Normal
  12/28/2025 03 PM PST          132.39          19253         -              Normal
  12/28/2025 04 PM PST          132.32          18993         -              Normal
  12/28/2025 05 PM PST          132.26          18767         -              Normal
  12/28/2025 06 PM PST          132.20          18540         -              Normal
  12/28/2025 07 PM PST          132.14          18317         -              Normal
  12/28/2025 08 PM PST          132.09          18134         -              Normal
  12/28/2025 09 PM PST          132.04          17953         -              Normal
  12/28/2025 10 PM PST          131.99          17773         -              Normal
  12/28/2025 11 PM PST          131.95          17624         -              Normal
  12/29/2025 12 AM PST          131.91          17477         -              Normal
  12/29/2025 01 AM PST          131.87          17331         -              Normal
  12/29/2025 02 AM PST          131.84          17223         -              Normal
  12/29/2025 03 AM PST          131.80          17080         -              Normal
  12/29/2025 04 AM PST          131.77          16971         -              Normal
  12/29/2025 05 AM PST          131.74          16863         -              Normal
  12/29/2025 06 AM PST          131.71          16756         -              Normal
  12/29/2025 07 AM PST          131.68          16647         -              Normal
  12/29/2025 08 AM PST          131.65          16539         -              Normal
  12/29/2025 09 AM PST          131.62          16431         -              Normal
  12/29/2025 10 AM PST          131.59          16324         -              Normal
  12/29/2025 11 AM PST          131.56          16215         -              Normal
  12/29/2025 12 PM PST          131.53          16107         -              Normal
  12/29/2025 01 PM PST          131.51          16036         -              Normal
  12/29/2025 02 PM PST          131.48          15929         -              Normal
  12/29/2025 03 PM PST          131.45          15824         -              Normal
  12/29/2025 04 PM PST          131.42          15719         -              Normal
  12/29/2025 05 PM PST          131.41          15685         -              Normal
  12/29/2025 06 PM PST          131.41          15685         0              Normal
  12/29/2025 07 PM PST          131.46          15859         +              Normal
  12/29/2025 08 PM PST          131.53          16107         +              Normal
  12/29/2025 09 PM PST          131.64          16503         +              Normal
  12/29/2025 10 PM PST          131.75          16899         +              Normal
  12/29/2025 11 PM PST          131.87          17331         +              Normal
  12/30/2025 12 AM PST          131.97          17698         +              Normal
  12/30/2025 01 AM PST          132.06          18025         +              Normal
  12/30/2025 02 AM PST          132.14          18317         +              Normal
  12/30/2025 03 AM PST          132.20          18540         +              Normal
  12/30/2025 04 AM PST          132.24          18691         +              Normal
  12/30/2025 05 AM PST          132.27          18805         +              Normal
  12/30/2025 06 AM PST          132.29          18882         +              Normal
  12/30/2025 07 AM PST          132.30          18920         +              Normal
  12/30/2025 08 AM PST          132.30          18920         0              Normal
  12/30/2025 09 AM PST          132.30          18920         0              Normal
  12/30/2025 10 AM PST          132.30          18920         0              Normal
  12/30/2025 11 AM PST          132.29          18882         -              Normal
  12/30/2025 12 PM PST          132.28          18843         -              Normal
  12/30/2025 01 PM PST          132.27          18805         -              Normal
  12/30/2025 02 PM PST          132.26          18767         -              Normal
  12/30/2025 03 PM PST          132.25          18729         -              Normal
  12/30/2025 04 PM PST          132.24          18691         -              Normal
  12/30/2025 05 PM PST          132.22          18615         -              Normal
  12/30/2025 06 PM PST          132.21          18578         -              Normal
  12/30/2025 07 PM PST          132.19          18503         -              Normal
  12/30/2025 08 PM PST          132.16          18391         -              Normal
  12/30/2025 09 PM PST          132.14          18317         -              Normal
  12/30/2025 10 PM PST          132.10          18170         -              Normal
  12/30/2025 11 PM PST          132.06          18025         -              Normal
  12/31/2025 12 AM PST          132.02          17881         -              Normal
  12/31/2025 01 AM PST          131.97          17698         -              Normal
  12/31/2025 02 AM PST          131.93          17550         -              Normal
  12/31/2025 03 AM PST          131.89          17404         -              Normal
  12/31/2025 04 AM PST          131.85          17259         -              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.