SACRAMENTO RIVER - COLUSA BRIDGE (CLUC1)
Latitude: 39.21º NLongitude: 122.00º WElevation: 70 Feet
Location: Colusa County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Issuance Time: Dec 24 2025 at 1:49 PM PSTNext Issuance: Dec 24 2025 at 9:00 PM PST
Action/Monitor: 63.0 FeetMinor Flood: 70.0 FeetModerate Flood: 72.0 FeetMajor Flood: 73.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Sacramento River - Colusa Bridge (CLUC1)
#
# File Generation Time:  12/24/2025 at 01:49 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/24/2025 at 12:00 AM PST
# Maximum Observed Stage:                       64.86 Feet
# Maximum Observed Flow:                        41259 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/27/2025 at 06:00 AM PST
# Maximum Forecast Stage:                       65.56 Feet
# Maximum Forecast Flow:                        42990 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/19/2025 01 PM PST           43.83           8019                        Normal
  12/19/2025 02 PM PST           43.81           7995         -              Normal
  12/19/2025 03 PM PST           43.76           7934         -              Normal
  12/19/2025 04 PM PST           43.74           7910         -              Normal
  12/19/2025 05 PM PST           43.74           7910         0              Normal
  12/19/2025 06 PM PST           43.67           7826         -              Normal
  12/19/2025 07 PM PST           43.63           7778         -              Normal
  12/19/2025 08 PM PST           43.63           7778         0              Normal
  12/19/2025 09 PM PST           43.58           7719         -              Normal
  12/19/2025 10 PM PST           43.55           7684         -              Normal
  12/19/2025 11 PM PST           43.52           7648         -              Normal
  12/20/2025 12 AM PST           43.49           7611         -              Normal
  12/20/2025 01 AM PST           43.47           7583         -              Normal
  12/20/2025 02 AM PST           43.42           7514         -              Normal
  12/20/2025 03 AM PST           43.40           7487         -              Normal
  12/20/2025 04 AM PST           43.37           7446         -              Normal
  12/20/2025 05 AM PST           43.35           7419         -              Normal
  12/20/2025 06 AM PST           43.32           7378         -              Normal
  12/20/2025 07 AM PST           43.31           7365         -              Normal
  12/20/2025 08 AM PST           43.28           7324         -              Normal
  12/20/2025 09 AM PST           43.25           7284         -              Normal
  12/20/2025 10 AM PST           43.24           7271         -              Normal
  12/20/2025 11 AM PST           43.25           7284         +              Normal
  12/20/2025 12 PM PST           43.25           7284         0              Normal
  12/20/2025 01 PM PST           43.29           7338         +              Normal
  12/20/2025 02 PM PST           43.40           7487         +              Normal
  12/20/2025 03 PM PST           43.62           7766         +              Normal
  12/20/2025 04 PM PST           43.97           8192         +              Normal
  12/20/2025 05 PM PST           44.50           8826         +              Normal
  12/20/2025 06 PM PST           45.13           9584         +              Normal
  12/20/2025 07 PM PST           45.82          10462         +              Normal
  12/20/2025 08 PM PST           46.51          11230         +              Normal
  12/20/2025 09 PM PST           47.16          11918         +              Normal
  12/20/2025 10 PM PST           47.74          12537         +              Normal
  12/20/2025 11 PM PST           48.28          13115         +              Normal
  12/21/2025 12 AM PST           48.75          13657         +              Normal
  12/21/2025 01 AM PST           49.17          14178         +              Normal
  12/21/2025 02 AM PST           49.49          14577         +              Normal
  12/21/2025 03 AM PST           49.76          14915         +              Normal
  12/21/2025 04 AM PST           49.99          15207         +              Normal
  12/21/2025 05 AM PST           50.16          15420         +              Normal
  12/21/2025 06 AM PST           50.29          15583         +              Normal
  12/21/2025 07 AM PST           50.41          15735         +              Normal
  12/21/2025 08 AM PST           50.46          15799         +              Normal
  12/21/2025 09 AM PST           50.50          15850         +              Normal
  12/21/2025 10 AM PST           50.53          15891         +              Normal
  12/21/2025 11 AM PST           50.53          15891         0              Normal
  12/21/2025 12 PM PST           50.53          15891         0              Normal
  12/21/2025 01 PM PST           50.53          15891         0              Normal
  12/21/2025 02 PM PST           50.53          15891         0              Normal
  12/21/2025 03 PM PST           50.55          15918         +              Normal
  12/21/2025 04 PM PST           50.60          15986         +              Normal
  12/21/2025 05 PM PST           50.68          16096         +              Normal
  12/21/2025 06 PM PST           50.83          16303         +              Normal
  12/21/2025 07 PM PST           51.02          16567         +              Normal
  12/21/2025 08 PM PST           51.22          16841         +              Normal
  12/21/2025 09 PM PST           51.46          17174         +              Normal
  12/21/2025 10 PM PST           51.77          17605         +              Normal
  12/21/2025 11 PM PST           52.07          18028         +              Normal
  12/22/2025 12 AM PST           52.43          18539         +              Normal
  12/22/2025 01 AM PST           52.81          19078         +              Normal
  12/22/2025 02 AM PST           53.19          19632         +              Normal
  12/22/2025 03 AM PST           53.58          20220         +              Normal
  12/22/2025 04 AM PST           54.00          20860         +              Normal
  12/22/2025 05 AM PST           54.42          21505         +              Normal
  12/22/2025 06 AM PST           54.87          22198         +              Normal
  12/22/2025 07 AM PST           55.31          22881         +              Normal
  12/22/2025 08 AM PST           55.77          23604         +              Normal
  12/22/2025 09 AM PST           56.20          24288         +              Normal
  12/22/2025 10 AM PST           56.68          25056         +              Normal
  12/22/2025 11 AM PST           57.14          25795         +              Normal
  12/22/2025 12 PM PST           57.60          26543         +              Normal
  12/22/2025 01 PM PST           58.07          27325         +              Normal
  12/22/2025 02 PM PST           58.51          28118         +              Normal
  12/22/2025 03 PM PST           58.97          28955         +              Normal
  12/22/2025 04 PM PST           59.41          29763         +              Normal
  12/22/2025 05 PM PST           59.87          30616         +              Normal
  12/22/2025 06 PM PST           60.32          31459         +              Normal
  12/22/2025 07 PM PST           60.73          32275         +              Normal
  12/22/2025 08 PM PST           61.12          33090         +              Normal
  12/22/2025 09 PM PST           61.48          33848         +              Normal
  12/22/2025 10 PM PST           61.79          34502         +              Normal
  12/22/2025 11 PM PST           62.10          35164         +              Normal
  12/23/2025 12 AM PST           62.40          35812         +              Normal
  12/23/2025 01 AM PST           62.69          36426         +              Normal
  12/23/2025 02 AM PST           62.92          36911         +              Normal
  12/23/2025 03 AM PST           63.17          37435         +      Action/Monitor
  12/23/2025 04 AM PST           63.37          37855         +      Action/Monitor
  12/23/2025 05 AM PST           63.56          38257         +      Action/Monitor
  12/23/2025 06 AM PST           63.74          38641         +      Action/Monitor
  12/23/2025 07 AM PST           63.81          38791         +      Action/Monitor
  12/23/2025 08 AM PST           63.82          38812         +      Action/Monitor
  12/23/2025 09 AM PST           63.94          39070         +      Action/Monitor
  12/23/2025 10 AM PST           64.08          39389         +      Action/Monitor
  12/23/2025 11 AM PST           64.22          39720         +      Action/Monitor
  12/23/2025 12 PM PST           64.32          39959         +      Action/Monitor
  12/23/2025 01 PM PST           64.42          40198         +      Action/Monitor
  12/23/2025 02 PM PST           64.51          40414         +      Action/Monitor
  12/23/2025 03 PM PST           64.59          40606         +      Action/Monitor
  12/23/2025 04 PM PST           64.65          40750         +      Action/Monitor
  12/23/2025 05 PM PST           64.69          40847         +      Action/Monitor
  12/23/2025 06 PM PST           64.74          40968         +      Action/Monitor
  12/23/2025 07 PM PST           64.78          41064         +      Action/Monitor
  12/23/2025 08 PM PST           64.79          41089         +      Action/Monitor
  12/23/2025 09 PM PST           64.82          41161         +      Action/Monitor
  12/23/2025 10 PM PST           64.84          41210         +      Action/Monitor
  12/23/2025 11 PM PST           64.86          41259         +      Action/Monitor
  12/24/2025 12 AM PST           64.86          41259         0      Action/Monitor
  12/24/2025 01 AM PST           64.82          41161         -      Action/Monitor
  12/24/2025 02 AM PST           64.84          41210         +      Action/Monitor
  12/24/2025 03 AM PST           64.79          41089         -      Action/Monitor
  12/24/2025 04 AM PST           64.74          40968         -      Action/Monitor
  12/24/2025 05 AM PST           64.73          40943         -      Action/Monitor
  12/24/2025 06 AM PST           64.69          40847         -      Action/Monitor
  12/24/2025 07 AM PST           64.66          40774         -      Action/Monitor
  12/24/2025 08 AM PST           64.62          40678         -      Action/Monitor
  12/24/2025 09 AM PST           64.56          40534         -      Action/Monitor
  12/24/2025 10 AM PST           64.50          40390         -      Action/Monitor
  12/24/2025 11 AM PST           64.42          40198         -      Action/Monitor
  12/24/2025 12 PM PST           64.36          40054         -      Action/Monitor
  12/24/2025 01 PM PST           64.29          39887         -      Action/Monitor
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/24/2025 02 PM PST           64.21          39697                Action/Monitor
  12/24/2025 03 PM PST           64.14          39531         -      Action/Monitor
  12/24/2025 04 PM PST           64.04          39294         -      Action/Monitor
  12/24/2025 05 PM PST           63.94          39070         -      Action/Monitor
  12/24/2025 06 PM PST           63.85          38877         -      Action/Monitor
  12/24/2025 07 PM PST           63.77          38705         -      Action/Monitor
  12/24/2025 08 PM PST           63.70          38555         -      Action/Monitor
  12/24/2025 09 PM PST           63.65          38449         -      Action/Monitor
  12/24/2025 10 PM PST           63.61          38364         -      Action/Monitor
  12/24/2025 11 PM PST           63.58          38300         -      Action/Monitor
  12/25/2025 12 AM PST           63.56          38257         -      Action/Monitor
  12/25/2025 01 AM PST           63.56          38257         0      Action/Monitor
  12/25/2025 02 AM PST           63.56          38257         0      Action/Monitor
  12/25/2025 03 AM PST           63.57          38279         +      Action/Monitor
  12/25/2025 04 AM PST           63.59          38321         +      Action/Monitor
  12/25/2025 05 AM PST           63.60          38342         +      Action/Monitor
  12/25/2025 06 AM PST           63.63          38406         +      Action/Monitor
  12/25/2025 07 AM PST           63.65          38449         +      Action/Monitor
  12/25/2025 08 AM PST           63.68          38513         +      Action/Monitor
  12/25/2025 09 AM PST           63.70          38555         +      Action/Monitor
  12/25/2025 10 AM PST           63.74          38641         +      Action/Monitor
  12/25/2025 11 AM PST           63.77          38705         +      Action/Monitor
  12/25/2025 12 PM PST           63.81          38791         +      Action/Monitor
  12/25/2025 01 PM PST           63.86          38898         +      Action/Monitor
  12/25/2025 02 PM PST           63.91          39006         +      Action/Monitor
  12/25/2025 03 PM PST           63.97          39135         +      Action/Monitor
  12/25/2025 04 PM PST           64.03          39271         +      Action/Monitor
  12/25/2025 05 PM PST           64.09          39412         +      Action/Monitor
  12/25/2025 06 PM PST           64.15          39554         +      Action/Monitor
  12/25/2025 07 PM PST           64.21          39697         +      Action/Monitor
  12/25/2025 08 PM PST           64.26          39816         +      Action/Monitor
  12/25/2025 09 PM PST           64.32          39959         +      Action/Monitor
  12/25/2025 10 PM PST           64.38          40102         +      Action/Monitor
  12/25/2025 11 PM PST           64.43          40222         +      Action/Monitor
  12/26/2025 12 AM PST           64.48          40342         +      Action/Monitor
  12/26/2025 01 AM PST           64.54          40486         +      Action/Monitor
  12/26/2025 02 AM PST           64.60          40630         +      Action/Monitor
  12/26/2025 03 AM PST           64.66          40774         +      Action/Monitor
  12/26/2025 04 AM PST           64.71          40895         +      Action/Monitor
  12/26/2025 05 AM PST           64.77          41040         +      Action/Monitor
  12/26/2025 06 AM PST           64.82          41161         +      Action/Monitor
  12/26/2025 07 AM PST           64.88          41307         +      Action/Monitor
  12/26/2025 08 AM PST           64.93          41429         +      Action/Monitor
  12/26/2025 09 AM PST           64.97          41527         +      Action/Monitor
  12/26/2025 10 AM PST           65.02          41649         +      Action/Monitor
  12/26/2025 11 AM PST           65.07          41772         +      Action/Monitor
  12/26/2025 12 PM PST           65.11          41870         +      Action/Monitor
  12/26/2025 01 PM PST           65.16          41994         +      Action/Monitor
  12/26/2025 02 PM PST           65.20          42093         +      Action/Monitor
  12/26/2025 03 PM PST           65.23          42167         +      Action/Monitor
  12/26/2025 04 PM PST           65.27          42266         +      Action/Monitor
  12/26/2025 05 PM PST           65.30          42341         +      Action/Monitor
  12/26/2025 06 PM PST           65.33          42415         +      Action/Monitor
  12/26/2025 07 PM PST           65.36          42490         +      Action/Monitor
  12/26/2025 08 PM PST           65.39          42565         +      Action/Monitor
  12/26/2025 09 PM PST           65.42          42640         +      Action/Monitor
  12/26/2025 10 PM PST           65.44          42690         +      Action/Monitor
  12/26/2025 11 PM PST           65.47          42765         +      Action/Monitor
  12/27/2025 12 AM PST           65.49          42815         +      Action/Monitor
  12/27/2025 01 AM PST           65.50          42840         +      Action/Monitor
  12/27/2025 02 AM PST           65.52          42890         +      Action/Monitor
  12/27/2025 03 AM PST           65.53          42915         +      Action/Monitor
  12/27/2025 04 AM PST           65.54          42940         +      Action/Monitor
  12/27/2025 05 AM PST           65.55          42965         +      Action/Monitor
  12/27/2025 06 AM PST           65.56          42990         +      Action/Monitor
  12/27/2025 07 AM PST           65.56          42990         0      Action/Monitor
  12/27/2025 08 AM PST           65.56          42990         0      Action/Monitor
  12/27/2025 09 AM PST           65.56          42990         0      Action/Monitor
  12/27/2025 10 AM PST           65.56          42990         0      Action/Monitor
  12/27/2025 11 AM PST           65.56          42990         0      Action/Monitor
  12/27/2025 12 PM PST           65.55          42965         -      Action/Monitor
  12/27/2025 01 PM PST           65.54          42940         -      Action/Monitor
  12/27/2025 02 PM PST           65.53          42915         -      Action/Monitor
  12/27/2025 03 PM PST           65.52          42890         -      Action/Monitor
  12/27/2025 04 PM PST           65.51          42865         -      Action/Monitor
  12/27/2025 05 PM PST           65.49          42815         -      Action/Monitor
  12/27/2025 06 PM PST           65.48          42790         -      Action/Monitor
  12/27/2025 07 PM PST           65.45          42715         -      Action/Monitor
  12/27/2025 08 PM PST           65.43          42665         -      Action/Monitor
  12/27/2025 09 PM PST           65.41          42615         -      Action/Monitor
  12/27/2025 10 PM PST           65.38          42540         -      Action/Monitor
  12/27/2025 11 PM PST           65.35          42465         -      Action/Monitor
  12/28/2025 12 AM PST           65.31          42366         -      Action/Monitor
  12/28/2025 01 AM PST           65.28          42291         -      Action/Monitor
  12/28/2025 02 AM PST           65.23          42167         -      Action/Monitor
  12/28/2025 03 AM PST           65.17          42019         -      Action/Monitor
  12/28/2025 04 AM PST           65.12          41895         -      Action/Monitor
  12/28/2025 05 AM PST           65.06          41747         -      Action/Monitor
  12/28/2025 06 AM PST           65.00          41600         -      Action/Monitor
  12/28/2025 07 AM PST           64.93          41429         -      Action/Monitor
  12/28/2025 08 AM PST           64.86          41259         -      Action/Monitor
  12/28/2025 09 AM PST           64.79          41089         -      Action/Monitor
  12/28/2025 10 AM PST           64.71          40895         -      Action/Monitor
  12/28/2025 11 AM PST           64.64          40726         -      Action/Monitor
  12/28/2025 12 PM PST           64.56          40534         -      Action/Monitor
  12/28/2025 01 PM PST           64.47          40318         -      Action/Monitor
  12/28/2025 02 PM PST           64.39          40126         -      Action/Monitor
  12/28/2025 03 PM PST           64.28          39863         -      Action/Monitor
  12/28/2025 04 PM PST           64.17          39602         -      Action/Monitor
  12/28/2025 05 PM PST           64.05          39318         -      Action/Monitor
  12/28/2025 06 PM PST           63.92          39027         -      Action/Monitor
  12/28/2025 07 PM PST           63.80          38769         -      Action/Monitor
  12/28/2025 08 PM PST           63.67          38491         -      Action/Monitor
  12/28/2025 09 PM PST           63.55          38236         -      Action/Monitor
  12/28/2025 10 PM PST           63.42          37961         -      Action/Monitor
  12/28/2025 11 PM PST           63.30          37707         -      Action/Monitor
  12/29/2025 12 AM PST           63.18          37456         -      Action/Monitor
  12/29/2025 01 AM PST           63.06          37205         -      Action/Monitor
  12/29/2025 02 AM PST           62.93          36932         -              Normal
  12/29/2025 03 AM PST           62.72          36489         -              Normal
  12/29/2025 04 AM PST           62.52          36072         -              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.