National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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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: Apr 30 2025 at 7:24 AM PDTNext Issuance: May 01 2025 at 9:00 AM PDT
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:  04/30/2025 at 07:24 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/25/2025 at 04:00 PM PDT
# Maximum Observed Stage:                       44.85 Feet
# Maximum Observed Flow:                        9242 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/04/2025 at 01:00 AM PDT
# Maximum Forecast Stage:                       45.53 Feet
# Maximum Forecast Flow:                        10087 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/25/2025 07 AM PDT           44.23           8499                        Normal
  04/25/2025 08 AM PDT           44.25           8523         +              Normal
  04/25/2025 09 AM PDT           44.12           8369         -              Normal
  04/25/2025 10 AM PDT           44.42           8728         +              Normal
  04/25/2025 11 AM PDT           44.06           8299         -              Normal
  04/25/2025 12 PM PDT           44.23           8499         +              Normal
  04/25/2025 01 PM PDT           44.32           8607         +              Normal
  04/25/2025 02 PM PDT           44.23           8499         -              Normal
  04/25/2025 03 PM PDT           44.32           8607         +              Normal
  04/25/2025 04 PM PDT           44.85           9242         +              Normal
  04/25/2025 05 PM PDT           44.05           8287         -              Normal
  04/25/2025 06 PM PDT           43.97           8192         -              Normal
  04/25/2025 07 PM PDT           44.02           8252         +              Normal
  04/25/2025 08 PM PDT           44.39           8692         +              Normal
  04/25/2025 09 PM PDT           43.89           8093         -              Normal
  04/25/2025 10 PM PDT           44.01           8241         +              Normal
  04/25/2025 11 PM PDT           44.42           8728         +              Normal
  04/26/2025 12 AM PDT           44.18           8440         -              Normal
  04/26/2025 01 AM PDT           44.44           8752         +              Normal
  04/26/2025 02 AM PDT           43.97           8192         -              Normal
  04/26/2025 03 AM PDT           44.00           8229         +              Normal
  04/26/2025 04 AM PDT           43.82           8007         -              Normal
  04/26/2025 05 AM PDT           43.84           8031         +              Normal
  04/26/2025 06 AM PDT           44.16           8416         +              Normal
  04/26/2025 07 AM PDT           43.76           7934         -              Normal
  04/26/2025 08 AM PDT           43.68           7838         -              Normal
  04/26/2025 09 AM PDT           43.96           8179         +              Normal
  04/26/2025 10 AM PDT           43.81           7995         -              Normal
  04/26/2025 11 AM PDT           43.93           8142         +              Normal
  04/26/2025 12 PM PDT           43.83           8019         -              Normal
  04/26/2025 01 PM PDT           43.95           8167         +              Normal
  04/26/2025 02 PM PDT           44.00           8229         +              Normal
  04/26/2025 03 PM PDT           43.65           7802         -              Normal
  04/26/2025 04 PM PDT           43.91           8117         +              Normal
  04/26/2025 05 PM PDT           43.62           7766         -              Normal
  04/26/2025 06 PM PDT           43.73           7898         +              Normal
  04/26/2025 07 PM PDT           43.77           7946         +              Normal
  04/26/2025 08 PM PDT           43.53           7660         -              Normal
  04/26/2025 09 PM PDT           43.58           7719         +              Normal
  04/26/2025 10 PM PDT           43.86           8056         +              Normal
  04/26/2025 11 PM PDT           43.94           8154         +              Normal
  04/27/2025 12 AM PDT           43.57           7707         -              Normal
  04/27/2025 01 AM PDT           43.45           7556         -              Normal
  04/27/2025 02 AM PDT           43.59           7731         +              Normal
  04/27/2025 03 AM PDT           43.90           8105         +              Normal
  04/27/2025 04 AM PDT           43.43           7528         -              Normal
  04/27/2025 05 AM PDT           43.90           8105         +              Normal
  04/27/2025 06 AM PDT           43.54           7672         -              Normal
  04/27/2025 07 AM PDT           44.07           8310         +              Normal
  04/27/2025 08 AM PDT           43.87           8068         -              Normal
  04/27/2025 09 AM PDT           43.50           7625         -              Normal
  04/27/2025 10 AM PDT           43.53           7660         +              Normal
  04/27/2025 11 AM PDT           43.47           7583         -              Normal
  04/27/2025 12 PM PDT           43.61           7755         +              Normal
  04/27/2025 01 PM PDT           43.43           7528         -              Normal
  04/27/2025 02 PM PDT           43.66           7814         +              Normal
  04/27/2025 03 PM PDT           43.48           7597         -              Normal
  04/27/2025 04 PM PDT           43.40           7487         -              Normal
  04/27/2025 05 PM PDT           44.04           8275         +              Normal
  04/27/2025 06 PM PDT           43.81           7995         -              Normal
  04/27/2025 07 PM PDT           43.89           8093         +              Normal
  04/27/2025 08 PM PDT           43.63           7778         -              Normal
  04/27/2025 09 PM PDT           43.51           7637         -              Normal
  04/27/2025 10 PM PDT           43.73           7898         +              Normal
  04/27/2025 11 PM PDT           43.39           7473         -              Normal
  04/28/2025 12 AM PDT           43.90           8105         +              Normal
  04/28/2025 01 AM PDT           43.91           8117         +              Normal
  04/28/2025 02 AM PDT           43.32           7378         -              Normal
  04/28/2025 03 AM PDT           43.57           7707         +              Normal
  04/28/2025 04 AM PDT           43.88           8080         +              Normal
  04/28/2025 05 AM PDT           43.42           7514         -              Normal
  04/28/2025 06 AM PDT           43.62           7766         +              Normal
  04/28/2025 07 AM PDT           43.41           7501         -              Normal
  04/28/2025 08 AM PDT           43.71           7874         +              Normal
  04/28/2025 09 AM PDT           43.53           7660         -              Normal
  04/28/2025 10 AM PDT           43.81           7995         +              Normal
  04/28/2025 11 AM PDT           43.51           7637         -              Normal
  04/28/2025 12 PM PDT           43.53           7660         +              Normal
  04/28/2025 01 PM PDT           43.58           7719         +              Normal
  04/28/2025 02 PM PDT           43.56           7695         -              Normal
  04/28/2025 03 PM PDT           43.58           7719         +              Normal
  04/28/2025 04 PM PDT           43.54           7672         -              Normal
  04/28/2025 05 PM PDT           43.98           8204         +              Normal
  04/28/2025 06 PM PDT           43.56           7695         -              Normal
  04/28/2025 07 PM PDT           43.74           7910         +              Normal
  04/28/2025 08 PM PDT           43.58           7719         -              Normal
  04/28/2025 09 PM PDT           43.47           7583         -              Normal
  04/28/2025 10 PM PDT           43.55           7684         +              Normal
  04/28/2025 11 PM PDT           44.05           8287         +              Normal
  04/29/2025 12 AM PDT           43.96           8179         -              Normal
  04/29/2025 01 AM PDT           44.03           8264         +              Normal
  04/29/2025 02 AM PDT           43.58           7719         -              Normal
  04/29/2025 03 AM PDT           43.41           7501         -              Normal
  04/29/2025 04 AM PDT           43.36           7433         -              Normal
  04/29/2025 05 AM PDT           43.70           7862         +              Normal
  04/29/2025 06 AM PDT           43.54           7672         -              Normal
  04/29/2025 07 AM PDT           43.41           7501         -              Normal
  04/29/2025 08 AM PDT           43.52           7648         +              Normal
  04/29/2025 09 AM PDT           43.41           7501         -              Normal
  04/29/2025 10 AM PDT           43.49           7611         +              Normal
  04/29/2025 11 AM PDT           43.34           7405         -              Normal
  04/29/2025 12 PM PDT           43.68           7838         +              Normal
  04/29/2025 01 PM PDT           43.72           7886         +              Normal
  04/29/2025 02 PM PDT           43.36           7433         -              Normal
  04/29/2025 03 PM PDT           43.22           7244         -              Normal
  04/29/2025 04 PM PDT           43.65           7802         +              Normal
  04/29/2025 05 PM PDT           43.34           7405         -              Normal
  04/29/2025 06 PM PDT           43.65           7802         +              Normal
  04/29/2025 07 PM PDT           43.41           7501         -              Normal
  04/29/2025 08 PM PDT           43.46           7570         +              Normal
  04/29/2025 09 PM PDT           43.21           7231         -              Normal
  04/29/2025 10 PM PDT           43.26           7298         +              Normal
  04/29/2025 11 PM PDT           43.55           7684         +              Normal
  04/30/2025 12 AM PDT           43.14           7139         -              Normal
  04/30/2025 01 AM PDT           43.41           7501         +              Normal
  04/30/2025 02 AM PDT           43.18           7191         -              Normal
  04/30/2025 03 AM PDT           43.32           7378         +              Normal
  04/30/2025 04 AM PDT           43.36           7433         +              Normal
  04/30/2025 05 AM PDT           43.30           7351         -              Normal
  04/30/2025 06 AM PDT           43.30           7351         0              Normal
  04/30/2025 07 AM PDT           43.31           7365         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/30/2025 08 AM PDT           43.33           7392                        Normal
  04/30/2025 09 AM PDT           43.37           7446         +              Normal
  04/30/2025 10 AM PDT           43.42           7514         +              Normal
  04/30/2025 11 AM PDT           43.49           7611         +              Normal
  04/30/2025 12 PM PDT           43.59           7731         +              Normal
  04/30/2025 01 PM PDT           43.69           7850         +              Normal
  04/30/2025 02 PM PDT           43.80           7983         +              Normal
  04/30/2025 03 PM PDT           43.90           8105         +              Normal
  04/30/2025 04 PM PDT           44.00           8229         +              Normal
  04/30/2025 05 PM PDT           44.11           8357         +              Normal
  04/30/2025 06 PM PDT           44.21           8475         +              Normal
  04/30/2025 07 PM PDT           44.30           8583         +              Normal
  04/30/2025 08 PM PDT           44.39           8692         +              Normal
  04/30/2025 09 PM PDT           44.47           8789         +              Normal
  04/30/2025 10 PM PDT           44.55           8884         +              Normal
  04/30/2025 11 PM PDT           44.62           8967         +              Normal
  05/01/2025 12 AM PDT           44.69           9050         +              Normal
  05/01/2025 01 AM PDT           44.75           9121         +              Normal
  05/01/2025 02 AM PDT           44.81           9194         +              Normal
  05/01/2025 03 AM PDT           44.86           9254         +              Normal
  05/01/2025 04 AM PDT           44.91           9315         +              Normal
  05/01/2025 05 AM PDT           44.95           9364         +              Normal
  05/01/2025 06 AM PDT           44.99           9413         +              Normal
  05/01/2025 07 AM PDT           45.03           9462         +              Normal
  05/01/2025 08 AM PDT           45.07           9510         +              Normal
  05/01/2025 09 AM PDT           45.10           9547         +              Normal
  05/01/2025 10 AM PDT           45.13           9584         +              Normal
  05/01/2025 11 AM PDT           45.16           9621         +              Normal
  05/01/2025 12 PM PDT           45.18           9646         +              Normal
  05/01/2025 01 PM PDT           45.20           9671         +              Normal
  05/01/2025 02 PM PDT           45.23           9708         +              Normal
  05/01/2025 03 PM PDT           45.24           9720         +              Normal
  05/01/2025 04 PM PDT           45.26           9745         +              Normal
  05/01/2025 05 PM PDT           45.28           9770         +              Normal
  05/01/2025 06 PM PDT           45.29           9783         +              Normal
  05/01/2025 07 PM PDT           45.31           9808         +              Normal
  05/01/2025 08 PM PDT           45.32           9821         +              Normal
  05/01/2025 09 PM PDT           45.33           9833         +              Normal
  05/01/2025 10 PM PDT           45.34           9846         +              Normal
  05/01/2025 11 PM PDT           45.35           9858         +              Normal
  05/02/2025 12 AM PDT           45.36           9871         +              Normal
  05/02/2025 01 AM PDT           45.37           9884         +              Normal
  05/02/2025 02 AM PDT           45.38           9896         +              Normal
  05/02/2025 03 AM PDT           45.38           9896         0              Normal
  05/02/2025 04 AM PDT           45.39           9909         +              Normal
  05/02/2025 05 AM PDT           45.40           9922         +              Normal
  05/02/2025 06 AM PDT           45.40           9922         0              Normal
  05/02/2025 07 AM PDT           45.41           9934         +              Normal
  05/02/2025 08 AM PDT           45.41           9934         0              Normal
  05/02/2025 09 AM PDT           45.42           9947         +              Normal
  05/02/2025 10 AM PDT           45.42           9947         0              Normal
  05/02/2025 11 AM PDT           45.43           9960         +              Normal
  05/02/2025 12 PM PDT           45.43           9960         0              Normal
  05/02/2025 01 PM PDT           45.44           9972         +              Normal
  05/02/2025 02 PM PDT           45.44           9972         0              Normal
  05/02/2025 03 PM PDT           45.45           9985         +              Normal
  05/02/2025 04 PM PDT           45.45           9985         0              Normal
  05/02/2025 05 PM PDT           45.45           9985         0              Normal
  05/02/2025 06 PM PDT           45.45           9985         0              Normal
  05/02/2025 07 PM PDT           45.46           9998         +              Normal
  05/02/2025 08 PM PDT           45.46           9998         0              Normal
  05/02/2025 09 PM PDT           45.46           9998         0              Normal
  05/02/2025 10 PM PDT           45.47          10011         +              Normal
  05/02/2025 11 PM PDT           45.47          10011         0              Normal
  05/03/2025 12 AM PDT           45.47          10011         0              Normal
  05/03/2025 01 AM PDT           45.48          10023         +              Normal
  05/03/2025 02 AM PDT           45.48          10023         0              Normal
  05/03/2025 03 AM PDT           45.48          10023         0              Normal
  05/03/2025 04 AM PDT           45.48          10023         0              Normal
  05/03/2025 05 AM PDT           45.49          10036         +              Normal
  05/03/2025 06 AM PDT           45.49          10036         0              Normal
  05/03/2025 07 AM PDT           45.49          10036         0              Normal
  05/03/2025 08 AM PDT           45.49          10036         0              Normal
  05/03/2025 09 AM PDT           45.50          10049         +              Normal
  05/03/2025 10 AM PDT           45.50          10049         0              Normal
  05/03/2025 11 AM PDT           45.50          10049         0              Normal
  05/03/2025 12 PM PDT           45.50          10049         0              Normal
  05/03/2025 01 PM PDT           45.51          10062         +              Normal
  05/03/2025 02 PM PDT           45.51          10062         0              Normal
  05/03/2025 03 PM PDT           45.51          10062         0              Normal
  05/03/2025 04 PM PDT           45.51          10062         0              Normal
  05/03/2025 05 PM PDT           45.51          10062         0              Normal
  05/03/2025 06 PM PDT           45.51          10062         0              Normal
  05/03/2025 07 PM PDT           45.51          10062         0              Normal
  05/03/2025 08 PM PDT           45.52          10074         +              Normal
  05/03/2025 09 PM PDT           45.52          10074         0              Normal
  05/03/2025 10 PM PDT           45.52          10074         0              Normal
  05/03/2025 11 PM PDT           45.52          10074         0              Normal
  05/04/2025 12 AM PDT           45.52          10074         0              Normal
  05/04/2025 01 AM PDT           45.53          10087         +              Normal
  05/04/2025 02 AM PDT           45.53          10087         0              Normal
  05/04/2025 03 AM PDT           45.53          10087         0              Normal
  05/04/2025 04 AM PDT           45.53          10087         0              Normal
  05/04/2025 05 AM PDT           45.53          10087         0              Normal
  05/04/2025 06 AM PDT           45.53          10087         0              Normal
  05/04/2025 07 AM PDT           45.52          10074         -              Normal
  05/04/2025 08 AM PDT           45.51          10062         -              Normal
  05/04/2025 09 AM PDT           45.50          10049         -              Normal
  05/04/2025 10 AM PDT           45.49          10036         -              Normal
  05/04/2025 11 AM PDT           45.47          10011         -              Normal
  05/04/2025 12 PM PDT           45.45           9985         -              Normal
  05/04/2025 01 PM PDT           45.43           9960         -              Normal
  05/04/2025 02 PM PDT           45.41           9934         -              Normal
  05/04/2025 03 PM PDT           45.39           9909         -              Normal
  05/04/2025 04 PM PDT           45.38           9896         -              Normal
  05/04/2025 05 PM PDT           45.36           9871         -              Normal
  05/04/2025 06 PM PDT           45.34           9846         -              Normal
  05/04/2025 07 PM PDT           45.33           9833         -              Normal
  05/04/2025 08 PM PDT           45.31           9808         -              Normal
  05/04/2025 09 PM PDT           45.30           9795         -              Normal
  05/04/2025 10 PM PDT           45.28           9770         -              Normal
  05/04/2025 11 PM PDT           45.27           9758         -              Normal
  05/05/2025 12 AM PDT           45.26           9745         -              Normal
  05/05/2025 01 AM PDT           45.25           9733         -              Normal
  05/05/2025 02 AM PDT           45.23           9708         -              Normal
  05/05/2025 03 AM PDT           45.22           9695         -              Normal
  05/05/2025 04 AM PDT           45.21           9683         -              Normal
  05/05/2025 05 AM PDT           45.19           9658         -              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.