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 FeetForecast Type: Official Location
Location: Colusa County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Issuance Time: Oct 18 2026 at 7:01 AM PDTNext Issuance: Oct 19 2026 at 9:00 AM PDT
Action: 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:  10/18/2026 at 07:01 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/14/2026 at 11:00 AM PDT
# Maximum Observed Stage:                       39.91 Feet
# Maximum Observed Flow:                        3602 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/22/2026 at 02:00 PM PDT
# Maximum Forecast Stage:                       40.06 Feet
# Maximum Forecast Flow:                        3738 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/13/2026 07 AM PDT           39.90           3592                        Normal
  10/13/2026 08 AM PDT           39.90           3592         0              Normal
  10/13/2026 09 AM PDT           39.91           3602         +              Normal
  10/13/2026 10 AM PDT           39.91           3602         0              Normal
  10/13/2026 11 AM PDT           39.89           3583         -              Normal
  10/13/2026 12 PM PDT           39.90           3592         +              Normal
  10/13/2026 01 PM PDT           39.89           3583         -              Normal
  10/13/2026 02 PM PDT           39.88           3574         -              Normal
  10/13/2026 03 PM PDT           39.86           3556         -              Normal
  10/13/2026 04 PM PDT           39.89           3583         +              Normal
  10/13/2026 05 PM PDT           39.89           3583         0              Normal
  10/13/2026 06 PM PDT           39.89           3583         0              Normal
  10/13/2026 07 PM PDT           39.89           3583         0              Normal
  10/13/2026 08 PM PDT           39.88           3574         -              Normal
  10/13/2026 09 PM PDT           39.88           3574         0              Normal
  10/13/2026 10 PM PDT           39.88           3574         0              Normal
  10/13/2026 11 PM PDT           39.88           3574         0              Normal
  10/14/2026 12 AM PDT           39.89           3583         +              Normal
  10/14/2026 01 AM PDT           39.88           3574         -              Normal
  10/14/2026 02 AM PDT           39.89           3583         +              Normal
  10/14/2026 03 AM PDT           39.88           3574         -              Normal
  10/14/2026 04 AM PDT           39.88           3574         0              Normal
  10/14/2026 05 AM PDT           39.89           3583         +              Normal
  10/14/2026 06 AM PDT           39.90           3592         +              Normal
  10/14/2026 07 AM PDT           39.90           3592         0              Normal
  10/14/2026 08 AM PDT           39.90           3592         0              Normal
  10/14/2026 09 AM PDT           39.90           3592         0              Normal
  10/14/2026 10 AM PDT           39.90           3592         0              Normal
  10/14/2026 11 AM PDT           39.91           3602         +              Normal
  10/14/2026 12 PM PDT           39.90           3592         -              Normal
  10/14/2026 01 PM PDT           39.90           3592         0              Normal
  10/14/2026 02 PM PDT           39.89           3583         -              Normal
  10/14/2026 03 PM PDT           39.89           3583         0              Normal
  10/14/2026 04 PM PDT           39.88           3574         -              Normal
  10/14/2026 05 PM PDT           39.89           3583         +              Normal
  10/14/2026 06 PM PDT           39.88           3574         -              Normal
  10/14/2026 07 PM PDT           39.88           3574         0              Normal
  10/14/2026 08 PM PDT           39.88           3574         0              Normal
  10/14/2026 09 PM PDT           39.88           3574         0              Normal
  10/14/2026 10 PM PDT           39.87           3565         -              Normal
  10/14/2026 11 PM PDT           39.88           3574         +              Normal
  10/15/2026 12 AM PDT           39.88           3574         0              Normal
  10/15/2026 01 AM PDT           39.88           3574         0              Normal
  10/15/2026 02 AM PDT           39.87           3565         -              Normal
  10/15/2026 03 AM PDT           39.87           3565         0              Normal
  10/15/2026 04 AM PDT           39.88           3574         +              Normal
  10/15/2026 05 AM PDT           39.87           3565         -              Normal
  10/15/2026 06 AM PDT           39.87           3565         0              Normal
  10/15/2026 07 AM PDT           39.86           3556         -              Normal
  10/15/2026 08 AM PDT           39.86           3556         0              Normal
  10/15/2026 09 AM PDT           39.86           3556         0              Normal
  10/15/2026 10 AM PDT           39.86           3556         0              Normal
  10/15/2026 11 AM PDT           39.85           3546         -              Normal
  10/15/2026 12 PM PDT           39.85           3546         0              Normal
  10/15/2026 01 PM PDT           39.85           3546         0              Normal
  10/15/2026 02 PM PDT           39.85           3546         0              Normal
  10/15/2026 03 PM PDT           39.82           3519         -              Normal
  10/15/2026 04 PM PDT           39.84           3537         +              Normal
  10/15/2026 05 PM PDT           39.84           3537         0              Normal
  10/15/2026 06 PM PDT           39.84           3537         0              Normal
  10/15/2026 07 PM PDT           39.83           3528         -              Normal
  10/15/2026 08 PM PDT           39.83           3528         0              Normal
  10/15/2026 09 PM PDT           39.82           3519         -              Normal
  10/15/2026 10 PM PDT           39.81           3510         -              Normal
  10/15/2026 11 PM PDT           39.81           3510         0              Normal
  10/16/2026 12 AM PDT           39.80           3501         -              Normal
  10/16/2026 01 AM PDT           39.79           3492         -              Normal
  10/16/2026 02 AM PDT           39.79           3492         0              Normal
  10/16/2026 03 AM PDT           39.77           3474         -              Normal
  10/16/2026 04 AM PDT           39.77           3474         0              Normal
  10/16/2026 05 AM PDT           39.76           3465         -              Normal
  10/16/2026 06 AM PDT           39.76           3465         0              Normal
  10/16/2026 07 AM PDT           39.73           3438         -              Normal
  10/16/2026 08 AM PDT           39.74           3447         +              Normal
  10/16/2026 09 AM PDT           39.73           3438         -              Normal
  10/16/2026 10 AM PDT           39.70           3412         -              Normal
  10/16/2026 11 AM PDT           39.72           3429         +              Normal
  10/16/2026 12 PM PDT           39.68           3394         -              Normal
  10/16/2026 01 PM PDT           39.71           3420         +              Normal
  10/16/2026 02 PM PDT           39.72           3429         +              Normal
  10/16/2026 03 PM PDT           39.72           3429         0              Normal
  10/16/2026 04 PM PDT           39.72           3429         0              Normal
  10/16/2026 05 PM PDT           39.72           3429         0              Normal
  10/16/2026 06 PM PDT           39.72           3429         0              Normal
  10/16/2026 07 PM PDT           39.71           3420         -              Normal
  10/16/2026 08 PM PDT           39.72           3429         +              Normal
  10/16/2026 09 PM PDT           39.72           3429         0              Normal
  10/16/2026 10 PM PDT           39.72           3429         0              Normal
  10/16/2026 11 PM PDT           39.72           3429         0              Normal
  10/17/2026 12 AM PDT           39.72           3429         0              Normal
  10/17/2026 01 AM PDT           39.73           3438         +              Normal
  10/17/2026 02 AM PDT           39.72           3429         -              Normal
  10/17/2026 03 AM PDT           39.72           3429         0              Normal
  10/17/2026 04 AM PDT           39.74           3447         +              Normal
  10/17/2026 05 AM PDT           39.73           3438         -              Normal
  10/17/2026 06 AM PDT           39.75           3456         +              Normal
  10/17/2026 07 AM PDT           39.73           3438         -              Normal
  10/17/2026 08 AM PDT           39.75           3456         +              Normal
  10/17/2026 09 AM PDT           39.76           3465         +              Normal
  10/17/2026 10 AM PDT           39.76           3465         0              Normal
  10/17/2026 11 AM PDT           39.77           3474         +              Normal
  10/17/2026 12 PM PDT           39.77           3474         0              Normal
  10/17/2026 01 PM PDT           39.77           3474         0              Normal
  10/17/2026 02 PM PDT           39.77           3474         0              Normal
  10/17/2026 03 PM PDT           39.77           3474         0              Normal
  10/17/2026 04 PM PDT           39.78           3483         +              Normal
  10/17/2026 05 PM PDT           39.77           3474         -              Normal
  10/17/2026 06 PM PDT           39.78           3483         +              Normal
  10/17/2026 07 PM PDT           39.78           3483         0              Normal
  10/17/2026 08 PM PDT           39.79           3492         +              Normal
  10/17/2026 09 PM PDT           39.79           3492         0              Normal
  10/17/2026 10 PM PDT           39.79           3492         0              Normal
  10/17/2026 11 PM PDT           39.79           3492         0              Normal
  10/18/2026 12 AM PDT           39.79           3492         0              Normal
  10/18/2026 01 AM PDT           39.78           3483         -              Normal
  10/18/2026 02 AM PDT           39.78           3483         0              Normal
  10/18/2026 03 AM PDT           39.79           3492         +              Normal
  10/18/2026 04 AM PDT           39.79           3492         0              Normal
  10/18/2026 05 AM PDT           39.78           3483         -              Normal
  10/18/2026 06 AM PDT           39.78           3483         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/18/2026 07 AM PDT           39.78           3483                        Normal
  10/18/2026 08 AM PDT           39.78           3483         0              Normal
  10/18/2026 09 AM PDT           39.78           3483         0              Normal
  10/18/2026 10 AM PDT           39.78           3483         0              Normal
  10/18/2026 11 AM PDT           39.78           3483         0              Normal
  10/18/2026 12 PM PDT           39.78           3483         0              Normal
  10/18/2026 01 PM PDT           39.78           3483         0              Normal
  10/18/2026 02 PM PDT           39.78           3483         0              Normal
  10/18/2026 03 PM PDT           39.78           3483         0              Normal
  10/18/2026 04 PM PDT           39.78           3483         0              Normal
  10/18/2026 05 PM PDT           39.78           3483         0              Normal
  10/18/2026 06 PM PDT           39.77           3474         -              Normal
  10/18/2026 07 PM PDT           39.77           3474         0              Normal
  10/18/2026 08 PM PDT           39.77           3474         0              Normal
  10/18/2026 09 PM PDT           39.77           3474         0              Normal
  10/18/2026 10 PM PDT           39.77           3474         0              Normal
  10/18/2026 11 PM PDT           39.77           3474         0              Normal
  10/19/2026 12 AM PDT           39.77           3474         0              Normal
  10/19/2026 01 AM PDT           39.77           3474         0              Normal
  10/19/2026 02 AM PDT           39.77           3474         0              Normal
  10/19/2026 03 AM PDT           39.77           3474         0              Normal
  10/19/2026 04 AM PDT           39.77           3474         0              Normal
  10/19/2026 05 AM PDT           39.77           3474         0              Normal
  10/19/2026 06 AM PDT           39.77           3474         0              Normal
  10/19/2026 07 AM PDT           39.77           3474         0              Normal
  10/19/2026 08 AM PDT           39.78           3483         +              Normal
  10/19/2026 09 AM PDT           39.78           3483         0              Normal
  10/19/2026 10 AM PDT           39.78           3483         0              Normal
  10/19/2026 11 AM PDT           39.78           3483         0              Normal
  10/19/2026 12 PM PDT           39.79           3492         +              Normal
  10/19/2026 01 PM PDT           39.79           3492         0              Normal
  10/19/2026 02 PM PDT           39.80           3501         +              Normal
  10/19/2026 03 PM PDT           39.80           3501         0              Normal
  10/19/2026 04 PM PDT           39.80           3501         0              Normal
  10/19/2026 05 PM PDT           39.80           3501         0              Normal
  10/19/2026 06 PM PDT           39.81           3510         +              Normal
  10/19/2026 07 PM PDT           39.81           3510         0              Normal
  10/19/2026 08 PM PDT           39.81           3510         0              Normal
  10/19/2026 09 PM PDT           39.81           3510         0              Normal
  10/19/2026 10 PM PDT           39.81           3510         0              Normal
  10/19/2026 11 PM PDT           39.82           3519         +              Normal
  10/20/2026 12 AM PDT           39.82           3519         0              Normal
  10/20/2026 01 AM PDT           39.82           3519         0              Normal
  10/20/2026 02 AM PDT           39.82           3519         0              Normal
  10/20/2026 03 AM PDT           39.82           3519         0              Normal
  10/20/2026 04 AM PDT           39.83           3528         +              Normal
  10/20/2026 05 AM PDT           39.83           3528         0              Normal
  10/20/2026 06 AM PDT           39.83           3528         0              Normal
  10/20/2026 07 AM PDT           39.83           3528         0              Normal
  10/20/2026 08 AM PDT           39.83           3528         0              Normal
  10/20/2026 09 AM PDT           39.83           3528         0              Normal
  10/20/2026 10 AM PDT           39.84           3537         +              Normal
  10/20/2026 11 AM PDT           39.84           3537         0              Normal
  10/20/2026 12 PM PDT           39.84           3537         0              Normal
  10/20/2026 01 PM PDT           39.84           3537         0              Normal
  10/20/2026 02 PM PDT           39.84           3537         0              Normal
  10/20/2026 03 PM PDT           39.84           3537         0              Normal
  10/20/2026 04 PM PDT           39.84           3537         0              Normal
  10/20/2026 05 PM PDT           39.84           3537         0              Normal
  10/20/2026 06 PM PDT           39.85           3546         +              Normal
  10/20/2026 07 PM PDT           39.85           3546         0              Normal
  10/20/2026 08 PM PDT           39.85           3546         0              Normal
  10/20/2026 09 PM PDT           39.85           3546         0              Normal
  10/20/2026 10 PM PDT           39.85           3546         0              Normal
  10/20/2026 11 PM PDT           39.85           3546         0              Normal
  10/21/2026 12 AM PDT           39.85           3546         0              Normal
  10/21/2026 01 AM PDT           39.85           3546         0              Normal
  10/21/2026 02 AM PDT           39.85           3546         0              Normal
  10/21/2026 03 AM PDT           39.85           3546         0              Normal
  10/21/2026 04 AM PDT           39.86           3556         +              Normal
  10/21/2026 05 AM PDT           39.86           3556         0              Normal
  10/21/2026 06 AM PDT           39.86           3556         0              Normal
  10/21/2026 07 AM PDT           39.86           3556         0              Normal
  10/21/2026 08 AM PDT           39.86           3556         0              Normal
  10/21/2026 09 AM PDT           39.86           3556         0              Normal
  10/21/2026 10 AM PDT           39.86           3556         0              Normal
  10/21/2026 11 AM PDT           39.87           3565         +              Normal
  10/21/2026 12 PM PDT           39.87           3565         0              Normal
  10/21/2026 01 PM PDT           39.87           3565         0              Normal
  10/21/2026 02 PM PDT           39.87           3565         0              Normal
  10/21/2026 03 PM PDT           39.87           3565         0              Normal
  10/21/2026 04 PM PDT           39.87           3565         0              Normal
  10/21/2026 05 PM PDT           39.87           3565         0              Normal
  10/21/2026 06 PM PDT           39.88           3574         +              Normal
  10/21/2026 07 PM PDT           39.88           3574         0              Normal
  10/21/2026 08 PM PDT           39.88           3574         0              Normal
  10/21/2026 09 PM PDT           39.88           3574         0              Normal
  10/21/2026 10 PM PDT           39.89           3583         +              Normal
  10/21/2026 11 PM PDT           39.89           3583         0              Normal
  10/22/2026 12 AM PDT           39.90           3592         +              Normal
  10/22/2026 01 AM PDT           39.90           3592         0              Normal
  10/22/2026 02 AM PDT           39.91           3602         +              Normal
  10/22/2026 03 AM PDT           39.92           3611         +              Normal
  10/22/2026 04 AM PDT           39.94           3630         +              Normal
  10/22/2026 05 AM PDT           39.95           3639         +              Normal
  10/22/2026 06 AM PDT           39.97           3658         +              Normal
  10/22/2026 07 AM PDT           39.99           3677         +              Normal
  10/22/2026 08 AM PDT           40.00           3686         +              Normal
  10/22/2026 09 AM PDT           40.02           3703         +              Normal
  10/22/2026 10 AM PDT           40.03           3712         +              Normal
  10/22/2026 11 AM PDT           40.04           3720         +              Normal
  10/22/2026 12 PM PDT           40.05           3729         +              Normal
  10/22/2026 01 PM PDT           40.05           3729         0              Normal
  10/22/2026 02 PM PDT           40.06           3738         +              Normal
  10/22/2026 03 PM PDT           40.06           3738         0              Normal
  10/22/2026 04 PM PDT           40.06           3738         0              Normal
  10/22/2026 05 PM PDT           40.06           3738         0              Normal
  10/22/2026 06 PM PDT           40.06           3738         0              Normal
  10/22/2026 07 PM PDT           40.05           3729         -              Normal
  10/22/2026 08 PM PDT           40.05           3729         0              Normal
  10/22/2026 09 PM PDT           40.05           3729         0              Normal
  10/22/2026 10 PM PDT           40.05           3729         0              Normal
  10/22/2026 11 PM PDT           40.04           3720         -              Normal
  10/23/2026 12 AM PDT           40.04           3720         0              Normal
  10/23/2026 01 AM PDT           40.04           3720         0              Normal
  10/23/2026 02 AM PDT           40.04           3720         0              Normal
  10/23/2026 03 AM PDT           40.04           3720         0              Normal
  10/23/2026 04 AM PDT           40.04           3720         0              Normal
  10/23/2026 05 AM PDT           40.04           3720         0              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.