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: Sep 26 2026 at 7:44 AM PDTNext Issuance: Sep 27 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:  09/26/2026 at 07:45 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  09/21/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       40.92 Feet
# Maximum Observed Flow:                        4519 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/01/2026 at 05:00 AM PDT
# Maximum Forecast Stage:                       40.92 Feet
# Maximum Forecast Flow:                        4519 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  09/21/2026 07 AM PDT           40.92           4519                        Normal
  09/21/2026 08 AM PDT           40.91           4509         -              Normal
  09/21/2026 09 AM PDT           40.91           4509         0              Normal
  09/21/2026 10 AM PDT           40.91           4509         0              Normal
  09/21/2026 11 AM PDT           40.91           4509         0              Normal
  09/21/2026 12 PM PDT           40.90           4500         -              Normal
  09/21/2026 01 PM PDT           40.90           4500         0              Normal
  09/21/2026 02 PM PDT           40.89           4490         -              Normal
  09/21/2026 03 PM PDT           40.88           4481         -              Normal
  09/21/2026 04 PM PDT           40.88           4481         0              Normal
  09/21/2026 05 PM PDT           40.87           4472         -              Normal
  09/21/2026 06 PM PDT           40.86           4462         -              Normal
  09/21/2026 07 PM PDT           40.86           4462         0              Normal
  09/21/2026 08 PM PDT           40.84           4443         -              Normal
  09/21/2026 09 PM PDT           40.84           4443         0              Normal
  09/21/2026 10 PM PDT           40.84           4443         0              Normal
  09/21/2026 11 PM PDT           40.84           4443         0              Normal
  09/22/2026 12 AM PDT           40.83           4434         -              Normal
  09/22/2026 01 AM PDT           40.83           4434         0              Normal
  09/22/2026 02 AM PDT           40.83           4434         0              Normal
  09/22/2026 03 AM PDT           40.83           4434         0              Normal
  09/22/2026 04 AM PDT           40.82           4425         -              Normal
  09/22/2026 05 AM PDT           40.83           4434         +              Normal
  09/22/2026 06 AM PDT           40.82           4425         -              Normal
  09/22/2026 07 AM PDT           40.83           4434         +              Normal
  09/22/2026 08 AM PDT           40.82           4425         -              Normal
  09/22/2026 09 AM PDT           40.81           4416         -              Normal
  09/22/2026 10 AM PDT           40.80           4406         -              Normal
  09/22/2026 11 AM PDT           40.80           4406         0              Normal
  09/22/2026 12 PM PDT           40.79           4397         -              Normal
  09/22/2026 01 PM PDT           40.78           4388         -              Normal
  09/22/2026 02 PM PDT           40.78           4388         0              Normal
  09/22/2026 03 PM PDT           40.77           4379         -              Normal
  09/22/2026 04 PM PDT           40.77           4379         0              Normal
  09/22/2026 05 PM PDT           40.76           4369         -              Normal
  09/22/2026 06 PM PDT           40.76           4369         0              Normal
  09/22/2026 07 PM PDT           40.75           4360         -              Normal
  09/22/2026 08 PM PDT           40.75           4360         0              Normal
  09/22/2026 09 PM PDT           40.75           4360         0              Normal
  09/22/2026 10 PM PDT           40.74           4351         -              Normal
  09/22/2026 11 PM PDT           40.74           4351         0              Normal
  09/23/2026 12 AM PDT           40.73           4342         -              Normal
  09/23/2026 01 AM PDT           40.74           4351         +              Normal
  09/23/2026 02 AM PDT           40.73           4342         -              Normal
  09/23/2026 03 AM PDT           40.73           4342         0              Normal
  09/23/2026 04 AM PDT           40.73           4342         0              Normal
  09/23/2026 05 AM PDT           40.73           4342         0              Normal
  09/23/2026 06 AM PDT           40.73           4342         0              Normal
  09/23/2026 07 AM PDT           40.72           4333         -              Normal
  09/23/2026 08 AM PDT           40.72           4333         0              Normal
  09/23/2026 09 AM PDT           40.72           4333         0              Normal
  09/23/2026 10 AM PDT           40.72           4333         0              Normal
  09/23/2026 11 AM PDT           40.72           4333         0              Normal
  09/23/2026 12 PM PDT           40.72           4333         0              Normal
  09/23/2026 01 PM PDT           40.71           4324         -              Normal
  09/23/2026 02 PM PDT           40.71           4324         0              Normal
  09/23/2026 03 PM PDT           40.71           4324         0              Normal
  09/23/2026 04 PM PDT           40.70           4314         -              Normal
  09/23/2026 05 PM PDT           40.70           4314         0              Normal
  09/23/2026 06 PM PDT           40.69           4305         -              Normal
  09/23/2026 07 PM PDT           40.69           4305         0              Normal
  09/23/2026 08 PM PDT           40.69           4305         0              Normal
  09/23/2026 09 PM PDT           40.69           4305         0              Normal
  09/23/2026 10 PM PDT           40.68           4296         -              Normal
  09/23/2026 11 PM PDT           40.69           4305         +              Normal
  09/24/2026 12 AM PDT           40.68           4296         -              Normal
  09/24/2026 01 AM PDT           40.68           4296         0              Normal
  09/24/2026 02 AM PDT           40.68           4296         0              Normal
  09/24/2026 03 AM PDT           40.68           4296         0              Normal
  09/24/2026 04 AM PDT           40.68           4296         0              Normal
  09/24/2026 05 AM PDT           40.69           4305         +              Normal
  09/24/2026 06 AM PDT           40.69           4305         0              Normal
  09/24/2026 07 AM PDT           40.69           4305         0              Normal
  09/24/2026 08 AM PDT           40.69           4305         0              Normal
  09/24/2026 09 AM PDT           40.69           4305         0              Normal
  09/24/2026 10 AM PDT           40.69           4305         0              Normal
  09/24/2026 11 AM PDT           40.68           4296         -              Normal
  09/24/2026 12 PM PDT           40.67           4287         -              Normal
  09/24/2026 01 PM PDT           40.67           4287         0              Normal
  09/24/2026 02 PM PDT           40.65           4269         -              Normal
  09/24/2026 03 PM PDT           40.65           4269         0              Normal
  09/24/2026 04 PM PDT           40.64           4260         -              Normal
  09/24/2026 05 PM PDT           40.64           4260         0              Normal
  09/24/2026 06 PM PDT           40.64           4260         0              Normal
  09/24/2026 07 PM PDT           40.64           4260         0              Normal
  09/24/2026 08 PM PDT           40.64           4260         0              Normal
  09/24/2026 09 PM PDT           40.64           4260         0              Normal
  09/24/2026 10 PM PDT           40.64           4260         0              Normal
  09/24/2026 11 PM PDT           40.64           4260         0              Normal
  09/25/2026 12 AM PDT           40.63           4251         -              Normal
  09/25/2026 01 AM PDT           40.65           4269         +              Normal
  09/25/2026 02 AM PDT           40.65           4269         0              Normal
  09/25/2026 03 AM PDT           40.65           4269         0              Normal
  09/25/2026 04 AM PDT           40.65           4269         0              Normal
  09/25/2026 05 AM PDT           40.66           4278         +              Normal
  09/25/2026 06 AM PDT           40.67           4287         +              Normal
  09/25/2026 07 AM PDT           40.66           4278         -              Normal
  09/25/2026 08 AM PDT           40.67           4287         +              Normal
  09/25/2026 09 AM PDT           40.68           4296         +              Normal
  09/25/2026 10 AM PDT           40.69           4305         +              Normal
  09/25/2026 11 AM PDT           40.70           4314         +              Normal
  09/25/2026 12 PM PDT           40.70           4314         0              Normal
  09/25/2026 01 PM PDT           40.71           4324         +              Normal
  09/25/2026 02 PM PDT           40.71           4324         0              Normal
  09/25/2026 03 PM PDT           40.71           4324         0              Normal
  09/25/2026 04 PM PDT           40.73           4342         +              Normal
  09/25/2026 05 PM PDT           40.73           4342         0              Normal
  09/25/2026 06 PM PDT           40.73           4342         0              Normal
  09/25/2026 07 PM PDT           40.73           4342         0              Normal
  09/25/2026 08 PM PDT           40.74           4351         +              Normal
  09/25/2026 09 PM PDT           40.74           4351         0              Normal
  09/25/2026 10 PM PDT           40.74           4351         0              Normal
  09/25/2026 11 PM PDT           40.74           4351         0              Normal
  09/26/2026 12 AM PDT           40.75           4360         +              Normal
  09/26/2026 01 AM PDT           40.74           4351         -              Normal
  09/26/2026 02 AM PDT           40.75           4360         +              Normal
  09/26/2026 03 AM PDT           40.74           4351         -              Normal
  09/26/2026 04 AM PDT           40.75           4360         +              Normal
  09/26/2026 05 AM PDT           40.76           4369         +              Normal
  09/26/2026 06 AM PDT           40.76           4369         0              Normal
  09/26/2026 07 AM PDT           40.76           4369         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  09/26/2026 08 AM PDT           40.76           4369                        Normal
  09/26/2026 09 AM PDT           40.76           4369         0              Normal
  09/26/2026 10 AM PDT           40.75           4360         -              Normal
  09/26/2026 11 AM PDT           40.75           4360         0              Normal
  09/26/2026 12 PM PDT           40.75           4360         0              Normal
  09/26/2026 01 PM PDT           40.74           4351         -              Normal
  09/26/2026 02 PM PDT           40.74           4351         0              Normal
  09/26/2026 03 PM PDT           40.74           4351         0              Normal
  09/26/2026 04 PM PDT           40.73           4342         -              Normal
  09/26/2026 05 PM PDT           40.73           4342         0              Normal
  09/26/2026 06 PM PDT           40.73           4342         0              Normal
  09/26/2026 07 PM PDT           40.73           4342         0              Normal
  09/26/2026 08 PM PDT           40.73           4342         0              Normal
  09/26/2026 09 PM PDT           40.73           4342         0              Normal
  09/26/2026 10 PM PDT           40.73           4342         0              Normal
  09/26/2026 11 PM PDT           40.74           4351         +              Normal
  09/27/2026 12 AM PDT           40.74           4351         0              Normal
  09/27/2026 01 AM PDT           40.74           4351         0              Normal
  09/27/2026 02 AM PDT           40.74           4351         0              Normal
  09/27/2026 03 AM PDT           40.75           4360         +              Normal
  09/27/2026 04 AM PDT           40.75           4360         0              Normal
  09/27/2026 05 AM PDT           40.76           4369         +              Normal
  09/27/2026 06 AM PDT           40.76           4369         0              Normal
  09/27/2026 07 AM PDT           40.76           4369         0              Normal
  09/27/2026 08 AM PDT           40.77           4379         +              Normal
  09/27/2026 09 AM PDT           40.77           4379         0              Normal
  09/27/2026 10 AM PDT           40.77           4379         0              Normal
  09/27/2026 11 AM PDT           40.78           4388         +              Normal
  09/27/2026 12 PM PDT           40.78           4388         0              Normal
  09/27/2026 01 PM PDT           40.78           4388         0              Normal
  09/27/2026 02 PM PDT           40.79           4397         +              Normal
  09/27/2026 03 PM PDT           40.79           4397         0              Normal
  09/27/2026 04 PM PDT           40.79           4397         0              Normal
  09/27/2026 05 PM PDT           40.79           4397         0              Normal
  09/27/2026 06 PM PDT           40.80           4406         +              Normal
  09/27/2026 07 PM PDT           40.80           4406         0              Normal
  09/27/2026 08 PM PDT           40.80           4406         0              Normal
  09/27/2026 09 PM PDT           40.80           4406         0              Normal
  09/27/2026 10 PM PDT           40.80           4406         0              Normal
  09/27/2026 11 PM PDT           40.81           4416         +              Normal
  09/28/2026 12 AM PDT           40.81           4416         0              Normal
  09/28/2026 01 AM PDT           40.81           4416         0              Normal
  09/28/2026 02 AM PDT           40.81           4416         0              Normal
  09/28/2026 03 AM PDT           40.82           4425         +              Normal
  09/28/2026 04 AM PDT           40.82           4425         0              Normal
  09/28/2026 05 AM PDT           40.82           4425         0              Normal
  09/28/2026 06 AM PDT           40.83           4434         +              Normal
  09/28/2026 07 AM PDT           40.83           4434         0              Normal
  09/28/2026 08 AM PDT           40.83           4434         0              Normal
  09/28/2026 09 AM PDT           40.83           4434         0              Normal
  09/28/2026 10 AM PDT           40.84           4443         +              Normal
  09/28/2026 11 AM PDT           40.84           4443         0              Normal
  09/28/2026 12 PM PDT           40.84           4443         0              Normal
  09/28/2026 01 PM PDT           40.84           4443         0              Normal
  09/28/2026 02 PM PDT           40.84           4443         0              Normal
  09/28/2026 03 PM PDT           40.85           4453         +              Normal
  09/28/2026 04 PM PDT           40.85           4453         0              Normal
  09/28/2026 05 PM PDT           40.85           4453         0              Normal
  09/28/2026 06 PM PDT           40.85           4453         0              Normal
  09/28/2026 07 PM PDT           40.85           4453         0              Normal
  09/28/2026 08 PM PDT           40.86           4462         +              Normal
  09/28/2026 09 PM PDT           40.86           4462         0              Normal
  09/28/2026 10 PM PDT           40.86           4462         0              Normal
  09/28/2026 11 PM PDT           40.86           4462         0              Normal
  09/29/2026 12 AM PDT           40.86           4462         0              Normal
  09/29/2026 01 AM PDT           40.86           4462         0              Normal
  09/29/2026 02 AM PDT           40.86           4462         0              Normal
  09/29/2026 03 AM PDT           40.87           4472         +              Normal
  09/29/2026 04 AM PDT           40.87           4472         0              Normal
  09/29/2026 05 AM PDT           40.87           4472         0              Normal
  09/29/2026 06 AM PDT           40.87           4472         0              Normal
  09/29/2026 07 AM PDT           40.87           4472         0              Normal
  09/29/2026 08 AM PDT           40.87           4472         0              Normal
  09/29/2026 09 AM PDT           40.87           4472         0              Normal
  09/29/2026 10 AM PDT           40.88           4481         +              Normal
  09/29/2026 11 AM PDT           40.88           4481         0              Normal
  09/29/2026 12 PM PDT           40.88           4481         0              Normal
  09/29/2026 01 PM PDT           40.88           4481         0              Normal
  09/29/2026 02 PM PDT           40.88           4481         0              Normal
  09/29/2026 03 PM PDT           40.88           4481         0              Normal
  09/29/2026 04 PM PDT           40.88           4481         0              Normal
  09/29/2026 05 PM PDT           40.88           4481         0              Normal
  09/29/2026 06 PM PDT           40.88           4481         0              Normal
  09/29/2026 07 PM PDT           40.88           4481         0              Normal
  09/29/2026 08 PM PDT           40.89           4490         +              Normal
  09/29/2026 09 PM PDT           40.89           4490         0              Normal
  09/29/2026 10 PM PDT           40.89           4490         0              Normal
  09/29/2026 11 PM PDT           40.89           4490         0              Normal
  09/30/2026 12 AM PDT           40.89           4490         0              Normal
  09/30/2026 01 AM PDT           40.89           4490         0              Normal
  09/30/2026 02 AM PDT           40.89           4490         0              Normal
  09/30/2026 03 AM PDT           40.89           4490         0              Normal
  09/30/2026 04 AM PDT           40.89           4490         0              Normal
  09/30/2026 05 AM PDT           40.89           4490         0              Normal
  09/30/2026 06 AM PDT           40.89           4490         0              Normal
  09/30/2026 07 AM PDT           40.90           4500         +              Normal
  09/30/2026 08 AM PDT           40.90           4500         0              Normal
  09/30/2026 09 AM PDT           40.90           4500         0              Normal
  09/30/2026 10 AM PDT           40.90           4500         0              Normal
  09/30/2026 11 AM PDT           40.90           4500         0              Normal
  09/30/2026 12 PM PDT           40.90           4500         0              Normal
  09/30/2026 01 PM PDT           40.90           4500         0              Normal
  09/30/2026 02 PM PDT           40.90           4500         0              Normal
  09/30/2026 03 PM PDT           40.91           4509         +              Normal
  09/30/2026 04 PM PDT           40.91           4509         0              Normal
  09/30/2026 05 PM PDT           40.91           4509         0              Normal
  09/30/2026 06 PM PDT           40.91           4509         0              Normal
  09/30/2026 07 PM PDT           40.91           4509         0              Normal
  09/30/2026 08 PM PDT           40.91           4509         0              Normal
  09/30/2026 09 PM PDT           40.91           4509         0              Normal
  09/30/2026 10 PM PDT           40.91           4509         0              Normal
  09/30/2026 11 PM PDT           40.91           4509         0              Normal
  10/01/2026 12 AM PDT           40.91           4509         0              Normal
  10/01/2026 01 AM PDT           40.91           4509         0              Normal
  10/01/2026 02 AM PDT           40.91           4509         0              Normal
  10/01/2026 03 AM PDT           40.91           4509         0              Normal
  10/01/2026 04 AM PDT           40.91           4509         0              Normal
  10/01/2026 05 AM PDT           40.92           4519         +              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.