SACRAMENTO RIVER - COLUSA BRIDGE (CLUC1)
Latitude: 39.21º NLongitude: 122.00º WElevation: 70 FeetForecast Type: Official Location
Location: Colusa County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Issuance Time: Feb 28 2026 at 8:07 AM PSTNext Issuance: Mar 01 2026 at 9:00 AM 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:  02/28/2026 at 08:07 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/27/2026 at 07:00 AM PST
# Maximum Observed Stage:                       66.89 Feet
# Maximum Observed Flow:                        46853 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/28/2026 at 08:00 AM PST
# Maximum Forecast Stage:                       63.85 Feet
# Maximum Forecast Flow:                        38877 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/23/2026 08 AM PST           51.49          17216                        Normal
  02/23/2026 09 AM PST           51.42          17118         -              Normal
  02/23/2026 10 AM PST           51.37          17049         -              Normal
  02/23/2026 11 AM PST           51.30          16951         -              Normal
  02/23/2026 12 PM PST           51.21          16827         -              Normal
  02/23/2026 01 PM PST           51.15          16745         -              Normal
  02/23/2026 02 PM PST           51.08          16649         -              Normal
  02/23/2026 03 PM PST           51.02          16567         -              Normal
  02/23/2026 04 PM PST           50.96          16484         -              Normal
  02/23/2026 05 PM PST           50.91          16414         -              Normal
  02/23/2026 06 PM PST           50.86          16345         -              Normal
  02/23/2026 07 PM PST           50.82          16289         -              Normal
  02/23/2026 08 PM PST           50.78          16234         -              Normal
  02/23/2026 09 PM PST           50.73          16165         -              Normal
  02/23/2026 10 PM PST           50.71          16137         -              Normal
  02/23/2026 11 PM PST           50.69          16110         -              Normal
  02/24/2026 12 AM PST           50.65          16055         -              Normal
  02/24/2026 01 AM PST           50.65          16055         0              Normal
  02/24/2026 02 AM PST           50.61          16000         -              Normal
  02/24/2026 03 AM PST           50.58          15959         -              Normal
  02/24/2026 04 AM PST           50.58          15959         0              Normal
  02/24/2026 05 AM PST           50.57          15945         -              Normal
  02/24/2026 06 AM PST           50.55          15918         -              Normal
  02/24/2026 07 AM PST           50.56          15932         +              Normal
  02/24/2026 08 AM PST           50.54          15904         -              Normal
  02/24/2026 09 AM PST           50.55          15918         +              Normal
  02/24/2026 10 AM PST           50.55          15918         0              Normal
  02/24/2026 11 AM PST           50.56          15932         +              Normal
  02/24/2026 12 PM PST           50.55          15918         -              Normal
  02/24/2026 01 PM PST           50.57          15945         +              Normal
  02/24/2026 02 PM PST           50.57          15945         0              Normal
  02/24/2026 03 PM PST           50.58          15959         +              Normal
  02/24/2026 04 PM PST           50.59          15973         +              Normal
  02/24/2026 05 PM PST           50.60          15986         +              Normal
  02/24/2026 06 PM PST           50.61          16000         +              Normal
  02/24/2026 07 PM PST           50.63          16027         +              Normal
  02/24/2026 08 PM PST           50.65          16055         +              Normal
  02/24/2026 09 PM PST           50.70          16123         +              Normal
  02/24/2026 10 PM PST           50.75          16192         +              Normal
  02/24/2026 11 PM PST           50.83          16303         +              Normal
  02/25/2026 12 AM PST           50.97          16498         +              Normal
  02/25/2026 01 AM PST           51.14          16731         +              Normal
  02/25/2026 02 AM PST           51.39          17076         +              Normal
  02/25/2026 03 AM PST           51.72          17535         +              Normal
  02/25/2026 04 AM PST           52.13          18113         +              Normal
  02/25/2026 05 AM PST           52.61          18795         +              Normal
  02/25/2026 06 AM PST           53.17          19603         +              Normal
  02/25/2026 07 AM PST           53.81          20569         +              Normal
  02/25/2026 08 AM PST           54.46          21568         +              Normal
  02/25/2026 09 AM PST           55.14          22616         +              Normal
  02/25/2026 10 AM PST           55.85          23731         +              Normal
  02/25/2026 11 AM PST           56.56          24865         +              Normal
  02/25/2026 12 PM PST           57.26          25989         +              Normal
  02/25/2026 01 PM PST           57.96          27134         +              Normal
  02/25/2026 02 PM PST           58.61          28298         +              Normal
  02/25/2026 03 PM PST           59.29          29541         +              Normal
  02/25/2026 04 PM PST           59.98          30822         +              Normal
  02/25/2026 05 PM PST           60.59          31985         +              Normal
  02/25/2026 06 PM PST           61.17          33194         +              Normal
  02/25/2026 07 PM PST           61.69          34290         +              Normal
  02/25/2026 08 PM PST           62.20          35379         +              Normal
  02/25/2026 09 PM PST           62.66          36364         +              Normal
  02/25/2026 10 PM PST           63.06          37205         +      Action/Monitor
  02/25/2026 11 PM PST           63.42          37961         +      Action/Monitor
  02/26/2026 12 AM PST           63.72          38598         +      Action/Monitor
  02/26/2026 01 AM PST           63.97          39135         +      Action/Monitor
  02/26/2026 02 AM PST           64.20          39673         +      Action/Monitor
  02/26/2026 03 AM PST           64.41          40174         +      Action/Monitor
  02/26/2026 04 AM PST           64.60          40630         +      Action/Monitor
  02/26/2026 05 AM PST           64.77          41040         +      Action/Monitor
  02/26/2026 06 AM PST           64.93          41429         +      Action/Monitor
  02/26/2026 07 AM PST           65.07          41772         +      Action/Monitor
  02/26/2026 08 AM PST           65.23          42167         +      Action/Monitor
  02/26/2026 09 AM PST           65.39          42565         +      Action/Monitor
  02/26/2026 10 AM PST           65.51          42865         +      Action/Monitor
  02/26/2026 11 AM PST           65.63          43165         +      Action/Monitor
  02/26/2026 12 PM PST           65.72          43391         +      Action/Monitor
  02/26/2026 01 PM PST           65.84          43694         +      Action/Monitor
  02/26/2026 02 PM PST           65.97          44024         +      Action/Monitor
  02/26/2026 03 PM PST           66.06          44283         +      Action/Monitor
  02/26/2026 04 PM PST           66.15          44558         +      Action/Monitor
  02/26/2026 05 PM PST           66.24          44834         +      Action/Monitor
  02/26/2026 06 PM PST           66.31          45050         +      Action/Monitor
  02/26/2026 07 PM PST           66.39          45298         +      Action/Monitor
  02/26/2026 08 PM PST           66.48          45578         +      Action/Monitor
  02/26/2026 09 PM PST           66.51          45671         +      Action/Monitor
  02/26/2026 10 PM PST           66.61          45980         +      Action/Monitor
  02/26/2026 11 PM PST           66.64          46073         +      Action/Monitor
  02/27/2026 12 AM PST           66.71          46290         +      Action/Monitor
  02/27/2026 01 AM PST           66.74          46384         +      Action/Monitor
  02/27/2026 02 AM PST           66.80          46571         +      Action/Monitor
  02/27/2026 03 AM PST           66.81          46602         +      Action/Monitor
  02/27/2026 04 AM PST           66.86          46759         +      Action/Monitor
  02/27/2026 05 AM PST           66.88          46822         +      Action/Monitor
  02/27/2026 06 AM PST           66.88          46822         0      Action/Monitor
  02/27/2026 07 AM PST           66.89          46853         +      Action/Monitor
  02/27/2026 08 AM PST           66.86          46759         -      Action/Monitor
  02/27/2026 09 AM PST           66.86          46759         0      Action/Monitor
  02/27/2026 10 AM PST           66.84          46696         -      Action/Monitor
  02/27/2026 11 AM PST           66.79          46540         -      Action/Monitor
  02/27/2026 12 PM PST           66.73          46353         -      Action/Monitor
  02/27/2026 01 PM PST           66.65          46104         -      Action/Monitor
  02/27/2026 02 PM PST           66.57          45856         -      Action/Monitor
  02/27/2026 03 PM PST           66.46          45515         -      Action/Monitor
  02/27/2026 04 PM PST           66.37          45236         -      Action/Monitor
  02/27/2026 05 PM PST           66.28          44957         -      Action/Monitor
  02/27/2026 06 PM PST           66.15          44558         -      Action/Monitor
  02/27/2026 07 PM PST           66.02          44161         -      Action/Monitor
  02/27/2026 08 PM PST           65.88          43795         -      Action/Monitor
  02/27/2026 09 PM PST           65.74          43441         -      Action/Monitor
  02/27/2026 10 PM PST           65.55          42965         -      Action/Monitor
  02/27/2026 11 PM PST           65.39          42565         -      Action/Monitor
  02/28/2026 12 AM PST           65.24          42192         -      Action/Monitor
  02/28/2026 01 AM PST           65.06          41747         -      Action/Monitor
  02/28/2026 02 AM PST           64.87          41283         -      Action/Monitor
  02/28/2026 03 AM PST           64.71          40895         -      Action/Monitor
  02/28/2026 04 AM PST           64.55          40510         -      Action/Monitor
  02/28/2026 05 AM PST           64.36          40054         -      Action/Monitor
  02/28/2026 06 AM PST           64.18          39625         -      Action/Monitor
  02/28/2026 07 AM PST           64.02          39247         -      Action/Monitor
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/28/2026 08 AM PST           63.85          38877                Action/Monitor
  02/28/2026 09 AM PST           63.69          38534         -      Action/Monitor
  02/28/2026 10 AM PST           63.53          38194         -      Action/Monitor
  02/28/2026 11 AM PST           63.39          37897         -      Action/Monitor
  02/28/2026 12 PM PST           63.25          37602         -      Action/Monitor
  02/28/2026 01 PM PST           63.06          37205         -      Action/Monitor
  02/28/2026 02 PM PST           62.83          36721         -              Normal
  02/28/2026 03 PM PST           62.61          36259         -              Normal
  02/28/2026 04 PM PST           62.41          35834         -              Normal
  02/28/2026 05 PM PST           62.22          35422         -              Normal
  02/28/2026 06 PM PST           62.04          35036         -              Normal
  02/28/2026 07 PM PST           61.88          34693         -              Normal
  02/28/2026 08 PM PST           61.72          34353         -              Normal
  02/28/2026 09 PM PST           61.56          34016         -              Normal
  02/28/2026 10 PM PST           61.42          33720         -              Normal
  02/28/2026 11 PM PST           61.28          33425         -              Normal
  03/01/2026 12 AM PST           61.15          33152         -              Normal
  03/01/2026 01 AM PST           61.02          32882         -              Normal
  03/01/2026 02 AM PST           60.90          32630         -              Normal
  03/01/2026 03 AM PST           60.78          32379         -              Normal
  03/01/2026 04 AM PST           60.67          32151         -              Normal
  03/01/2026 05 AM PST           60.56          31923         -              Normal
  03/01/2026 06 AM PST           60.43          31667         -              Normal
  03/01/2026 07 AM PST           60.29          31403         -              Normal
  03/01/2026 08 AM PST           60.16          31159         -              Normal
  03/01/2026 09 AM PST           60.03          30916         -              Normal
  03/01/2026 10 AM PST           59.89          30654         -              Normal
  03/01/2026 11 AM PST           59.73          30355         -              Normal
  03/01/2026 12 PM PST           59.58          30077         -              Normal
  03/01/2026 01 PM PST           59.43          29800         -              Normal
  03/01/2026 02 PM PST           59.28          29523         -              Normal
  03/01/2026 03 PM PST           59.15          29284         -              Normal
  03/01/2026 04 PM PST           59.01          29028         -              Normal
  03/01/2026 05 PM PST           58.88          28790         -              Normal
  03/01/2026 06 PM PST           58.76          28571         -              Normal
  03/01/2026 07 PM PST           58.65          28371         -              Normal
  03/01/2026 08 PM PST           58.54          28172         -              Normal
  03/01/2026 09 PM PST           58.43          27973         -              Normal
  03/01/2026 10 PM PST           58.33          27792         -              Normal
  03/01/2026 11 PM PST           58.23          27611         -              Normal
  03/02/2026 12 AM PST           58.15          27468         -              Normal
  03/02/2026 01 AM PST           58.06          27307         -              Normal
  03/02/2026 02 AM PST           57.98          27167         -              Normal
  03/02/2026 03 AM PST           57.90          27035         -              Normal
  03/02/2026 04 AM PST           57.81          26886         -              Normal
  03/02/2026 05 AM PST           57.74          26771         -              Normal
  03/02/2026 06 AM PST           57.67          26657         -              Normal
  03/02/2026 07 AM PST           57.60          26543         -              Normal
  03/02/2026 08 AM PST           57.53          26429         -              Normal
  03/02/2026 09 AM PST           57.47          26331         -              Normal
  03/02/2026 10 AM PST           57.42          26249         -              Normal
  03/02/2026 11 AM PST           57.37          26168         -              Normal
  03/02/2026 12 PM PST           57.32          26086         -              Normal
  03/02/2026 01 PM PST           57.28          26021         -              Normal
  03/02/2026 02 PM PST           57.25          25973         -              Normal
  03/02/2026 03 PM PST           57.21          25908         -              Normal
  03/02/2026 04 PM PST           57.18          25860         -              Normal
  03/02/2026 05 PM PST           57.16          25827         -              Normal
  03/02/2026 06 PM PST           57.14          25795         -              Normal
  03/02/2026 07 PM PST           57.12          25763         -              Normal
  03/02/2026 08 PM PST           57.10          25731         -              Normal
  03/02/2026 09 PM PST           57.09          25714         -              Normal
  03/02/2026 10 PM PST           57.09          25714         0              Normal
  03/02/2026 11 PM PST           57.09          25714         0              Normal
  03/03/2026 12 AM PST           57.10          25731         +              Normal
  03/03/2026 01 AM PST           57.12          25763         +              Normal
  03/03/2026 02 AM PST           57.15          25811         +              Normal
  03/03/2026 03 AM PST           57.18          25860         +              Normal
  03/03/2026 04 AM PST           57.23          25940         +              Normal
  03/03/2026 05 AM PST           57.28          26021         +              Normal
  03/03/2026 06 AM PST           57.34          26119         +              Normal
  03/03/2026 07 AM PST           57.42          26249         +              Normal
  03/03/2026 08 AM PST           57.50          26380         +              Normal
  03/03/2026 09 AM PST           57.59          26526         +              Normal
  03/03/2026 10 AM PST           57.69          26689         +              Normal
  03/03/2026 11 AM PST           57.78          26837         +              Normal
  03/03/2026 12 PM PST           57.88          27002         +              Normal
  03/03/2026 01 PM PST           57.96          27134         +              Normal
  03/03/2026 02 PM PST           58.04          27271         +              Normal
  03/03/2026 03 PM PST           58.11          27396         +              Normal
  03/03/2026 04 PM PST           58.16          27486         +              Normal
  03/03/2026 05 PM PST           58.21          27575         +              Normal
  03/03/2026 06 PM PST           58.24          27629         +              Normal
  03/03/2026 07 PM PST           58.26          27665         +              Normal
  03/03/2026 08 PM PST           58.26          27665         0              Normal
  03/03/2026 09 PM PST           58.25          27647         -              Normal
  03/03/2026 10 PM PST           58.22          27593         -              Normal
  03/03/2026 11 PM PST           58.19          27539         -              Normal
  03/04/2026 12 AM PST           58.14          27450         -              Normal
  03/04/2026 01 AM PST           58.08          27343         -              Normal
  03/04/2026 02 AM PST           58.00          27200         -              Normal
  03/04/2026 03 AM PST           57.91          27051         -              Normal
  03/04/2026 04 AM PST           57.82          26903         -              Normal
  03/04/2026 05 AM PST           57.71          26722         -              Normal
  03/04/2026 06 AM PST           57.60          26543         -              Normal
  03/04/2026 07 AM PST           57.48          26347         -              Normal
  03/04/2026 08 AM PST           57.35          26135         -              Normal
  03/04/2026 09 AM PST           57.22          25924         -              Normal
  03/04/2026 10 AM PST           57.08          25698         -              Normal
  03/04/2026 11 AM PST           56.95          25489         -              Normal
  03/04/2026 12 PM PST           56.80          25248         -              Normal
  03/04/2026 01 PM PST           56.66          25024         -              Normal
  03/04/2026 02 PM PST           56.51          24786         -              Normal
  03/04/2026 03 PM PST           56.37          24560         -              Normal
  03/04/2026 04 PM PST           56.22          24320         -              Normal
  03/04/2026 05 PM PST           56.07          24081         -              Normal
  03/04/2026 06 PM PST           55.91          23826         -              Normal
  03/04/2026 07 PM PST           55.76          23588         -              Normal
  03/04/2026 08 PM PST           55.59          23321         -              Normal
  03/04/2026 09 PM PST           55.43          23070         -              Normal
  03/04/2026 10 PM PST           55.27          22819         -              Normal
  03/04/2026 11 PM PST           55.11          22570         -              Normal
  03/05/2026 12 AM PST           54.94          22307         -              Normal
  03/05/2026 01 AM PST           54.78          22059         -              Normal
  03/05/2026 02 AM PST           54.62          21813         -              Normal
  03/05/2026 03 AM PST           54.46          21568         -              Normal
  03/05/2026 04 AM PST           54.30          21320         -              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.