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: May 15 2026 at 7:55 AM PDTNext Issuance: May 16 2026 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:  05/15/2026 at 07:56 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/10/2026 at 11:00 PM PDT
# Maximum Observed Stage:                       42.60 Feet
# Maximum Observed Flow:                        6381 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/20/2026 at 05:00 AM PDT
# Maximum Forecast Stage:                       42.65 Feet
# Maximum Forecast Flow:                        6451 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/10/2026 07 AM PDT           42.41           6112                        Normal
  05/10/2026 08 AM PDT           42.42           6126         +              Normal
  05/10/2026 09 AM PDT           42.42           6126         0              Normal
  05/10/2026 10 AM PDT           42.43           6141         +              Normal
  05/10/2026 11 AM PDT           42.44           6156         +              Normal
  05/10/2026 12 PM PDT           42.47           6200         +              Normal
  05/10/2026 01 PM PDT           42.48           6214         +              Normal
  05/10/2026 02 PM PDT           42.51           6258         +              Normal
  05/10/2026 03 PM PDT           42.52           6271         +              Normal
  05/10/2026 04 PM PDT           42.54           6299         +              Normal
  05/10/2026 05 PM PDT           42.56           6326         +              Normal
  05/10/2026 06 PM PDT           42.57           6340         +              Normal
  05/10/2026 07 PM PDT           42.58           6354         +              Normal
  05/10/2026 08 PM PDT           42.59           6367         +              Normal
  05/10/2026 09 PM PDT           42.59           6367         0              Normal
  05/10/2026 10 PM PDT           42.59           6367         0              Normal
  05/10/2026 11 PM PDT           42.60           6381         +              Normal
  05/11/2026 12 AM PDT           42.59           6367         -              Normal
  05/11/2026 01 AM PDT           42.59           6367         0              Normal
  05/11/2026 02 AM PDT           42.58           6354         -              Normal
  05/11/2026 03 AM PDT           42.57           6340         -              Normal
  05/11/2026 04 AM PDT           42.56           6326         -              Normal
  05/11/2026 05 AM PDT           42.56           6326         0              Normal
  05/11/2026 06 AM PDT           42.54           6299         -              Normal
  05/11/2026 07 AM PDT           42.53           6285         -              Normal
  05/11/2026 08 AM PDT           42.51           6258         -              Normal
  05/11/2026 09 AM PDT           42.49           6229         -              Normal
  05/11/2026 10 AM PDT           42.48           6214         -              Normal
  05/11/2026 11 AM PDT           42.47           6200         -              Normal
  05/11/2026 12 PM PDT           42.45           6170         -              Normal
  05/11/2026 01 PM PDT           42.42           6126         -              Normal
  05/11/2026 02 PM PDT           42.42           6126         0              Normal
  05/11/2026 03 PM PDT           42.41           6112         -              Normal
  05/11/2026 04 PM PDT           42.40           6097         -              Normal
  05/11/2026 05 PM PDT           42.39           6083         -              Normal
  05/11/2026 06 PM PDT           42.38           6068         -              Normal
  05/11/2026 07 PM PDT           42.37           6054         -              Normal
  05/11/2026 08 PM PDT           42.37           6054         0              Normal
  05/11/2026 09 PM PDT           42.36           6039         -              Normal
  05/11/2026 10 PM PDT           42.36           6039         0              Normal
  05/11/2026 11 PM PDT           42.35           6025         -              Normal
  05/12/2026 12 AM PDT           42.33           5996         -              Normal
  05/12/2026 01 AM PDT           42.33           5996         0              Normal
  05/12/2026 02 AM PDT           42.33           5996         0              Normal
  05/12/2026 03 AM PDT           42.31           5968         -              Normal
  05/12/2026 04 AM PDT           42.31           5968         0              Normal
  05/12/2026 05 AM PDT           42.30           5954         -              Normal
  05/12/2026 06 AM PDT           42.29           5940         -              Normal
  05/12/2026 07 AM PDT           42.28           5925         -              Normal
  05/12/2026 08 AM PDT           42.27           5911         -              Normal
  05/12/2026 09 AM PDT           42.24           5869         -              Normal
  05/12/2026 10 AM PDT           42.22           5841         -              Normal
  05/12/2026 11 AM PDT           42.20           5813         -              Normal
  05/12/2026 12 PM PDT           42.18           5785         -              Normal
  05/12/2026 01 PM PDT           42.16           5758         -              Normal
  05/12/2026 02 PM PDT           42.13           5717         -              Normal
  05/12/2026 03 PM PDT           42.12           5703         -              Normal
  05/12/2026 04 PM PDT           42.10           5676         -              Normal
  05/12/2026 05 PM PDT           42.06           5621         -              Normal
  05/12/2026 06 PM PDT           42.05           5608         -              Normal
  05/12/2026 07 PM PDT           42.03           5581         -              Normal
  05/12/2026 08 PM PDT           42.01           5554         -              Normal
  05/12/2026 09 PM PDT           41.99           5531         -              Normal
  05/12/2026 10 PM PDT           41.97           5511         -              Normal
  05/12/2026 11 PM PDT           41.96           5501         -              Normal
  05/13/2026 12 AM PDT           41.94           5482         -              Normal
  05/13/2026 01 AM PDT           41.93           5472         -              Normal
  05/13/2026 02 AM PDT           41.93           5472         0              Normal
  05/13/2026 03 AM PDT           41.91           5452         -              Normal
  05/13/2026 04 AM PDT           41.90           5442         -              Normal
  05/13/2026 05 AM PDT           41.88           5423         -              Normal
  05/13/2026 06 AM PDT           41.87           5413         -              Normal
  05/13/2026 07 AM PDT           41.86           5403         -              Normal
  05/13/2026 08 AM PDT           41.84           5384         -              Normal
  05/13/2026 09 AM PDT           41.82           5365         -              Normal
  05/13/2026 10 AM PDT           41.81           5355         -              Normal
  05/13/2026 11 AM PDT           41.81           5355         0              Normal
  05/13/2026 12 PM PDT           41.81           5355         0              Normal
  05/13/2026 01 PM PDT           41.81           5355         0              Normal
  05/13/2026 02 PM PDT           41.81           5355         0              Normal
  05/13/2026 03 PM PDT           41.83           5374         +              Normal
  05/13/2026 04 PM PDT           41.85           5394         +              Normal
  05/13/2026 05 PM PDT           41.87           5413         +              Normal
  05/13/2026 06 PM PDT           41.89           5433         +              Normal
  05/13/2026 07 PM PDT           41.91           5452         +              Normal
  05/13/2026 08 PM PDT           41.93           5472         +              Normal
  05/13/2026 09 PM PDT           41.96           5501         +              Normal
  05/13/2026 10 PM PDT           41.97           5511         +              Normal
  05/13/2026 11 PM PDT           41.98           5521         +              Normal
  05/14/2026 12 AM PDT           41.99           5531         +              Normal
  05/14/2026 01 AM PDT           41.99           5531         0              Normal
  05/14/2026 02 AM PDT           42.00           5541         +              Normal
  05/14/2026 03 AM PDT           42.01           5554         +              Normal
  05/14/2026 04 AM PDT           42.01           5554         0              Normal
  05/14/2026 05 AM PDT           42.02           5568         +              Normal
  05/14/2026 06 AM PDT           42.02           5568         0              Normal
  05/14/2026 07 AM PDT           42.01           5554         -              Normal
  05/14/2026 08 AM PDT           42.01           5554         0              Normal
  05/14/2026 09 AM PDT           42.00           5541         -              Normal
  05/14/2026 10 AM PDT           42.00           5541         0              Normal
  05/14/2026 11 AM PDT           42.00           5541         0              Normal
  05/14/2026 12 PM PDT           41.99           5531         -              Normal
  05/14/2026 01 PM PDT           41.98           5521         -              Normal
  05/14/2026 02 PM PDT           41.97           5511         -              Normal
  05/14/2026 03 PM PDT           41.97           5511         0              Normal
  05/14/2026 04 PM PDT           41.96           5501         -              Normal
  05/14/2026 05 PM PDT           41.95           5492         -              Normal
  05/14/2026 06 PM PDT           41.95           5492         0              Normal
  05/14/2026 07 PM PDT           41.95           5492         0              Normal
  05/14/2026 08 PM PDT           41.94           5482         -              Normal
  05/14/2026 09 PM PDT           41.94           5482         0              Normal
  05/14/2026 10 PM PDT           41.95           5492         +              Normal
  05/14/2026 11 PM PDT           41.93           5472         -              Normal
  05/15/2026 12 AM PDT           41.94           5482         +              Normal
  05/15/2026 01 AM PDT           41.94           5482         0              Normal
  05/15/2026 02 AM PDT           41.94           5482         0              Normal
  05/15/2026 03 AM PDT           41.94           5482         0              Normal
  05/15/2026 04 AM PDT           41.94           5482         0              Normal
  05/15/2026 05 AM PDT           41.95           5492         +              Normal
  05/15/2026 06 AM PDT           41.97           5511         +              Normal
  05/15/2026 07 AM PDT           41.98           5521         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/15/2026 08 AM PDT           42.00           5541                        Normal
  05/15/2026 09 AM PDT           42.01           5554         +              Normal
  05/15/2026 10 AM PDT           42.02           5568         +              Normal
  05/15/2026 11 AM PDT           42.04           5594         +              Normal
  05/15/2026 12 PM PDT           42.05           5608         +              Normal
  05/15/2026 01 PM PDT           42.06           5621         +              Normal
  05/15/2026 02 PM PDT           42.07           5635         +              Normal
  05/15/2026 03 PM PDT           42.08           5648         +              Normal
  05/15/2026 04 PM PDT           42.09           5662         +              Normal
  05/15/2026 05 PM PDT           42.10           5676         +              Normal
  05/15/2026 06 PM PDT           42.11           5689         +              Normal
  05/15/2026 07 PM PDT           42.12           5703         +              Normal
  05/15/2026 08 PM PDT           42.12           5703         0              Normal
  05/15/2026 09 PM PDT           42.13           5717         +              Normal
  05/15/2026 10 PM PDT           42.14           5730         +              Normal
  05/15/2026 11 PM PDT           42.14           5730         0              Normal
  05/16/2026 12 AM PDT           42.15           5744         +              Normal
  05/16/2026 01 AM PDT           42.16           5758         +              Normal
  05/16/2026 02 AM PDT           42.16           5758         0              Normal
  05/16/2026 03 AM PDT           42.17           5772         +              Normal
  05/16/2026 04 AM PDT           42.17           5772         0              Normal
  05/16/2026 05 AM PDT           42.18           5785         +              Normal
  05/16/2026 06 AM PDT           42.18           5785         0              Normal
  05/16/2026 07 AM PDT           42.19           5799         +              Normal
  05/16/2026 08 AM PDT           42.19           5799         0              Normal
  05/16/2026 09 AM PDT           42.20           5813         +              Normal
  05/16/2026 10 AM PDT           42.20           5813         0              Normal
  05/16/2026 11 AM PDT           42.20           5813         0              Normal
  05/16/2026 12 PM PDT           42.21           5827         +              Normal
  05/16/2026 01 PM PDT           42.21           5827         0              Normal
  05/16/2026 02 PM PDT           42.22           5841         +              Normal
  05/16/2026 03 PM PDT           42.22           5841         0              Normal
  05/16/2026 04 PM PDT           42.22           5841         0              Normal
  05/16/2026 05 PM PDT           42.23           5855         +              Normal
  05/16/2026 06 PM PDT           42.23           5855         0              Normal
  05/16/2026 07 PM PDT           42.23           5855         0              Normal
  05/16/2026 08 PM PDT           42.24           5869         +              Normal
  05/16/2026 09 PM PDT           42.24           5869         0              Normal
  05/16/2026 10 PM PDT           42.25           5883         +              Normal
  05/16/2026 11 PM PDT           42.25           5883         0              Normal
  05/17/2026 12 AM PDT           42.25           5883         0              Normal
  05/17/2026 01 AM PDT           42.26           5897         +              Normal
  05/17/2026 02 AM PDT           42.26           5897         0              Normal
  05/17/2026 03 AM PDT           42.27           5911         +              Normal
  05/17/2026 04 AM PDT           42.27           5911         0              Normal
  05/17/2026 05 AM PDT           42.27           5911         0              Normal
  05/17/2026 06 AM PDT           42.27           5911         0              Normal
  05/17/2026 07 AM PDT           42.27           5911         0              Normal
  05/17/2026 08 AM PDT           42.27           5911         0              Normal
  05/17/2026 09 AM PDT           42.27           5911         0              Normal
  05/17/2026 10 AM PDT           42.26           5897         -              Normal
  05/17/2026 11 AM PDT           42.26           5897         0              Normal
  05/17/2026 12 PM PDT           42.26           5897         0              Normal
  05/17/2026 01 PM PDT           42.26           5897         0              Normal
  05/17/2026 02 PM PDT           42.26           5897         0              Normal
  05/17/2026 03 PM PDT           42.26           5897         0              Normal
  05/17/2026 04 PM PDT           42.25           5883         -              Normal
  05/17/2026 05 PM PDT           42.25           5883         0              Normal
  05/17/2026 06 PM PDT           42.25           5883         0              Normal
  05/17/2026 07 PM PDT           42.25           5883         0              Normal
  05/17/2026 08 PM PDT           42.25           5883         0              Normal
  05/17/2026 09 PM PDT           42.25           5883         0              Normal
  05/17/2026 10 PM PDT           42.24           5869         -              Normal
  05/17/2026 11 PM PDT           42.24           5869         0              Normal
  05/18/2026 12 AM PDT           42.24           5869         0              Normal
  05/18/2026 01 AM PDT           42.24           5869         0              Normal
  05/18/2026 02 AM PDT           42.24           5869         0              Normal
  05/18/2026 03 AM PDT           42.24           5869         0              Normal
  05/18/2026 04 AM PDT           42.24           5869         0              Normal
  05/18/2026 05 AM PDT           42.24           5869         0              Normal
  05/18/2026 06 AM PDT           42.24           5869         0              Normal
  05/18/2026 07 AM PDT           42.24           5869         0              Normal
  05/18/2026 08 AM PDT           42.25           5883         +              Normal
  05/18/2026 09 AM PDT           42.26           5897         +              Normal
  05/18/2026 10 AM PDT           42.26           5897         0              Normal
  05/18/2026 11 AM PDT           42.27           5911         +              Normal
  05/18/2026 12 PM PDT           42.28           5925         +              Normal
  05/18/2026 01 PM PDT           42.29           5940         +              Normal
  05/18/2026 02 PM PDT           42.30           5954         +              Normal
  05/18/2026 03 PM PDT           42.31           5968         +              Normal
  05/18/2026 04 PM PDT           42.32           5982         +              Normal
  05/18/2026 05 PM PDT           42.33           5996         +              Normal
  05/18/2026 06 PM PDT           42.34           6011         +              Normal
  05/18/2026 07 PM PDT           42.35           6025         +              Normal
  05/18/2026 08 PM PDT           42.36           6039         +              Normal
  05/18/2026 09 PM PDT           42.36           6039         0              Normal
  05/18/2026 10 PM PDT           42.37           6054         +              Normal
  05/18/2026 11 PM PDT           42.38           6068         +              Normal
  05/19/2026 12 AM PDT           42.38           6068         0              Normal
  05/19/2026 01 AM PDT           42.39           6083         +              Normal
  05/19/2026 02 AM PDT           42.39           6083         0              Normal
  05/19/2026 03 AM PDT           42.40           6097         +              Normal
  05/19/2026 04 AM PDT           42.40           6097         0              Normal
  05/19/2026 05 AM PDT           42.41           6112         +              Normal
  05/19/2026 06 AM PDT           42.42           6126         +              Normal
  05/19/2026 07 AM PDT           42.42           6126         0              Normal
  05/19/2026 08 AM PDT           42.43           6141         +              Normal
  05/19/2026 09 AM PDT           42.44           6156         +              Normal
  05/19/2026 10 AM PDT           42.45           6170         +              Normal
  05/19/2026 11 AM PDT           42.46           6185         +              Normal
  05/19/2026 12 PM PDT           42.48           6214         +              Normal
  05/19/2026 01 PM PDT           42.49           6229         +              Normal
  05/19/2026 02 PM PDT           42.50           6244         +              Normal
  05/19/2026 03 PM PDT           42.51           6258         +              Normal
  05/19/2026 04 PM PDT           42.52           6271         +              Normal
  05/19/2026 05 PM PDT           42.53           6285         +              Normal
  05/19/2026 06 PM PDT           42.55           6312         +              Normal
  05/19/2026 07 PM PDT           42.56           6326         +              Normal
  05/19/2026 08 PM PDT           42.57           6340         +              Normal
  05/19/2026 09 PM PDT           42.58           6354         +              Normal
  05/19/2026 10 PM PDT           42.59           6367         +              Normal
  05/19/2026 11 PM PDT           42.60           6381         +              Normal
  05/20/2026 12 AM PDT           42.61           6395         +              Normal
  05/20/2026 01 AM PDT           42.62           6409         +              Normal
  05/20/2026 02 AM PDT           42.63           6423         +              Normal
  05/20/2026 03 AM PDT           42.64           6437         +              Normal
  05/20/2026 04 AM PDT           42.64           6437         0              Normal
  05/20/2026 05 AM PDT           42.65           6451         +              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.