SACRAMENTO RIVER - HAMILTON CITY (HAMC1)
Latitude: 39.75º NLongitude: 122.00º WElevation: 125 FeetForecast Type: Official Location
Location: Glenn County in CaliforniaBulletin Group: Upper SacramentoRiver Group: Upper Sacramento
Issuance Time: May 17 2026 at 7:36 AM PDTNext Issuance: May 18 2026 at 9:00 AM PDT
Action/Monitor: 142.0 FeetMinor Flood: 147.0 FeetModerate Flood: 149.2 FeetMajor Flood: 150.2 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Sacramento River - Hamilton City (HAMC1)
#
# File Generation Time:  05/17/2026 at 07:37 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/17/2026 at 02:00 AM PDT
# Maximum Observed Stage:                       128.58 Feet
# Maximum Observed Flow:                        6827 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/21/2026 at 12:00 AM PDT
# Maximum Forecast Stage:                       129.11 Feet
# Maximum Forecast Flow:                        8140 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/12/2026 07 AM PDT          128.30           6144                        Normal
  05/12/2026 08 AM PDT          128.30           6144         0              Normal
  05/12/2026 09 AM PDT          128.27           6070         -              Normal
  05/12/2026 10 AM PDT          128.27           6070         0              Normal
  05/12/2026 11 AM PDT          128.25           6022         -              Normal
  05/12/2026 12 PM PDT          128.25           6022         0              Normal
  05/12/2026 01 PM PDT          128.25           6022         0              Normal
  05/12/2026 02 PM PDT          128.24           5998         -              Normal
  05/12/2026 03 PM PDT          128.24           5998         0              Normal
  05/12/2026 04 PM PDT          128.23           5974         -              Normal
  05/12/2026 05 PM PDT          128.23           5974         0              Normal
  05/12/2026 06 PM PDT          128.22           5950         -              Normal
  05/12/2026 07 PM PDT          128.22           5950         0              Normal
  05/12/2026 08 PM PDT          128.20           5902         -              Normal
  05/12/2026 09 PM PDT          128.23           5974         +              Normal
  05/12/2026 10 PM PDT          128.24           5998         +              Normal
  05/12/2026 11 PM PDT          128.26           6046         +              Normal
  05/13/2026 12 AM PDT          128.27           6070         +              Normal
  05/13/2026 01 AM PDT          128.27           6070         0              Normal
  05/13/2026 02 AM PDT          128.31           6168         +              Normal
  05/13/2026 03 AM PDT          128.34           6240         +              Normal
  05/13/2026 04 AM PDT          128.35           6265         +              Normal
  05/13/2026 05 AM PDT          128.35           6265         0              Normal
  05/13/2026 06 AM PDT          128.36           6289         +              Normal
  05/13/2026 07 AM PDT          128.37           6314         +              Normal
  05/13/2026 08 AM PDT          128.36           6289         -              Normal
  05/13/2026 09 AM PDT          128.35           6265         -              Normal
  05/13/2026 10 AM PDT          128.37           6314         +              Normal
  05/13/2026 11 AM PDT          128.37           6314         0              Normal
  05/13/2026 12 PM PDT          128.38           6338         +              Normal
  05/13/2026 01 PM PDT          128.38           6338         0              Normal
  05/13/2026 02 PM PDT          128.39           6363         +              Normal
  05/13/2026 03 PM PDT          128.39           6363         0              Normal
  05/13/2026 04 PM PDT          128.38           6338         -              Normal
  05/13/2026 05 PM PDT          128.37           6314         -              Normal
  05/13/2026 06 PM PDT          128.36           6289         -              Normal
  05/13/2026 07 PM PDT          128.35           6265         -              Normal
  05/13/2026 08 PM PDT          128.34           6240         -              Normal
  05/13/2026 09 PM PDT          128.34           6240         0              Normal
  05/13/2026 10 PM PDT          128.34           6240         0              Normal
  05/13/2026 11 PM PDT          128.33           6216         -              Normal
  05/14/2026 12 AM PDT          128.33           6216         0              Normal
  05/14/2026 01 AM PDT          128.34           6240         +              Normal
  05/14/2026 02 AM PDT          128.34           6240         0              Normal
  05/14/2026 03 AM PDT          128.34           6240         0              Normal
  05/14/2026 04 AM PDT          128.33           6216         -              Normal
  05/14/2026 05 AM PDT          128.32           6192         -              Normal
  05/14/2026 06 AM PDT          128.31           6168         -              Normal
  05/14/2026 07 AM PDT          128.31           6168         0              Normal
  05/14/2026 08 AM PDT          128.30           6144         -              Normal
  05/14/2026 09 AM PDT          128.29           6119         -              Normal
  05/14/2026 10 AM PDT          128.29           6119         0              Normal
  05/14/2026 11 AM PDT          128.35           6265         +              Normal
  05/14/2026 12 PM PDT          128.32           6192         -              Normal
  05/14/2026 01 PM PDT          128.30           6144         -              Normal
  05/14/2026 02 PM PDT          128.31           6168         +              Normal
  05/14/2026 03 PM PDT          128.34           6240         +              Normal
  05/14/2026 04 PM PDT          128.35           6265         +              Normal
  05/14/2026 05 PM PDT          128.35           6265         0              Normal
  05/14/2026 06 PM PDT          128.37           6314         +              Normal
  05/14/2026 07 PM PDT          128.40           6388         +              Normal
  05/14/2026 08 PM PDT          128.40           6388         0              Normal
  05/14/2026 09 PM PDT          128.40           6388         0              Normal
  05/14/2026 10 PM PDT          128.41           6412         +              Normal
  05/14/2026 11 PM PDT          128.42           6436         +              Normal
  05/15/2026 12 AM PDT          128.41           6412         -              Normal
  05/15/2026 01 AM PDT          128.40           6388         -              Normal
  05/15/2026 02 AM PDT          128.40           6388         0              Normal
  05/15/2026 03 AM PDT          128.39           6363         -              Normal
  05/15/2026 04 AM PDT          128.40           6388         +              Normal
  05/15/2026 05 AM PDT          128.39           6363         -              Normal
  05/15/2026 06 AM PDT          128.37           6314         -              Normal
  05/15/2026 07 AM PDT          128.37           6314         0              Normal
  05/15/2026 08 AM PDT          128.36           6289         -              Normal
  05/15/2026 09 AM PDT          128.39           6363         +              Normal
  05/15/2026 10 AM PDT          128.40           6388         +              Normal
  05/15/2026 11 AM PDT          128.40           6388         0              Normal
  05/15/2026 12 PM PDT          128.40           6388         0              Normal
  05/15/2026 01 PM PDT          128.41           6412         +              Normal
  05/15/2026 02 PM PDT          128.41           6412         0              Normal
  05/15/2026 03 PM PDT          128.42           6436         +              Normal
  05/15/2026 04 PM PDT          128.45           6509         +              Normal
  05/15/2026 05 PM PDT          128.45           6509         0              Normal
  05/15/2026 06 PM PDT          128.45           6509         0              Normal
  05/15/2026 07 PM PDT          128.45           6509         0              Normal
  05/15/2026 08 PM PDT          128.43           6460         -              Normal
  05/15/2026 09 PM PDT          128.44           6485         +              Normal
  05/15/2026 10 PM PDT          128.44           6485         0              Normal
  05/15/2026 11 PM PDT          128.44           6485         0              Normal
  05/16/2026 12 AM PDT          128.44           6485         0              Normal
  05/16/2026 01 AM PDT          128.44           6485         0              Normal
  05/16/2026 02 AM PDT          128.42           6436         -              Normal
  05/16/2026 03 AM PDT          128.41           6412         -              Normal
  05/16/2026 04 AM PDT          128.42           6436         +              Normal
  05/16/2026 05 AM PDT          128.44           6485         +              Normal
  05/16/2026 06 AM PDT          128.44           6485         0              Normal
  05/16/2026 07 AM PDT          128.43           6460         -              Normal
  05/16/2026 08 AM PDT          128.42           6436         -              Normal
  05/16/2026 09 AM PDT          128.41           6412         -              Normal
  05/16/2026 10 AM PDT          128.41           6412         0              Normal
  05/16/2026 11 AM PDT          128.40           6388         -              Normal
  05/16/2026 12 PM PDT          128.40           6388         0              Normal
  05/16/2026 01 PM PDT          128.43           6460         +              Normal
  05/16/2026 02 PM PDT          128.43           6460         0              Normal
  05/16/2026 03 PM PDT          128.45           6509         +              Normal
  05/16/2026 04 PM PDT          128.47           6558         +              Normal
  05/16/2026 05 PM PDT          128.50           6632         +              Normal
  05/16/2026 06 PM PDT          128.52           6680         +              Normal
  05/16/2026 07 PM PDT          128.55           6753         +              Normal
  05/16/2026 08 PM PDT          128.56           6778         +              Normal
  05/16/2026 09 PM PDT          128.58           6827         +              Normal
  05/16/2026 10 PM PDT          128.58           6827         0              Normal
  05/16/2026 11 PM PDT          128.57           6803         -              Normal
  05/17/2026 12 AM PDT          128.58           6827         +              Normal
  05/17/2026 01 AM PDT          128.57           6803         -              Normal
  05/17/2026 02 AM PDT          128.58           6827         +              Normal
  05/17/2026 03 AM PDT          128.57           6803         -              Normal
  05/17/2026 04 AM PDT          128.57           6803         0              Normal
  05/17/2026 05 AM PDT          128.56           6778         -              Normal
  05/17/2026 06 AM PDT          128.56           6778         0              Normal
  05/17/2026 07 AM PDT          128.55           6753         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/17/2026 08 AM PDT          128.54           6729                        Normal
  05/17/2026 09 AM PDT          128.53           6705         -              Normal
  05/17/2026 10 AM PDT          128.52           6680         -              Normal
  05/17/2026 11 AM PDT          128.51           6656         -              Normal
  05/17/2026 12 PM PDT          128.51           6656         0              Normal
  05/17/2026 01 PM PDT          128.52           6680         +              Normal
  05/17/2026 02 PM PDT          128.53           6705         +              Normal
  05/17/2026 03 PM PDT          128.55           6753         +              Normal
  05/17/2026 04 PM PDT          128.57           6803         +              Normal
  05/17/2026 05 PM PDT          128.58           6827         +              Normal
  05/17/2026 06 PM PDT          128.59           6852         +              Normal
  05/17/2026 07 PM PDT          128.61           6901         +              Normal
  05/17/2026 08 PM PDT          128.63           6950         +              Normal
  05/17/2026 09 PM PDT          128.65           6999         +              Normal
  05/17/2026 10 PM PDT          128.67           7048         +              Normal
  05/17/2026 11 PM PDT          128.69           7098         +              Normal
  05/18/2026 12 AM PDT          128.71           7147         +              Normal
  05/18/2026 01 AM PDT          128.72           7172         +              Normal
  05/18/2026 02 AM PDT          128.74           7221         +              Normal
  05/18/2026 03 AM PDT          128.75           7245         +              Normal
  05/18/2026 04 AM PDT          128.76           7270         +              Normal
  05/18/2026 05 AM PDT          128.76           7270         0              Normal
  05/18/2026 06 AM PDT          128.77           7295         +              Normal
  05/18/2026 07 AM PDT          128.77           7295         0              Normal
  05/18/2026 08 AM PDT          128.78           7320         +              Normal
  05/18/2026 09 AM PDT          128.78           7320         0              Normal
  05/18/2026 10 AM PDT          128.78           7320         0              Normal
  05/18/2026 11 AM PDT          128.78           7320         0              Normal
  05/18/2026 12 PM PDT          128.78           7320         0              Normal
  05/18/2026 01 PM PDT          128.78           7320         0              Normal
  05/18/2026 02 PM PDT          128.78           7320         0              Normal
  05/18/2026 03 PM PDT          128.78           7320         0              Normal
  05/18/2026 04 PM PDT          128.78           7320         0              Normal
  05/18/2026 05 PM PDT          128.78           7320         0              Normal
  05/18/2026 06 PM PDT          128.78           7320         0              Normal
  05/18/2026 07 PM PDT          128.79           7345         +              Normal
  05/18/2026 08 PM PDT          128.81           7394         +              Normal
  05/18/2026 09 PM PDT          128.83           7444         +              Normal
  05/18/2026 10 PM PDT          128.85           7493         +              Normal
  05/18/2026 11 PM PDT          128.87           7543         +              Normal
  05/19/2026 12 AM PDT          128.89           7593         +              Normal
  05/19/2026 01 AM PDT          128.91           7642         +              Normal
  05/19/2026 02 AM PDT          128.93           7692         +              Normal
  05/19/2026 03 AM PDT          128.94           7716         +              Normal
  05/19/2026 04 AM PDT          128.95           7741         +              Normal
  05/19/2026 05 AM PDT          128.96           7766         +              Normal
  05/19/2026 06 AM PDT          128.97           7791         +              Normal
  05/19/2026 07 AM PDT          128.97           7791         0              Normal
  05/19/2026 08 AM PDT          128.97           7791         0              Normal
  05/19/2026 09 AM PDT          128.98           7816         +              Normal
  05/19/2026 10 AM PDT          128.99           7841         +              Normal
  05/19/2026 11 AM PDT          128.99           7841         0              Normal
  05/19/2026 12 PM PDT          129.00           7866         +              Normal
  05/19/2026 01 PM PDT          129.00           7866         0              Normal
  05/19/2026 02 PM PDT          129.01           7891         +              Normal
  05/19/2026 03 PM PDT          129.01           7891         0              Normal
  05/19/2026 04 PM PDT          129.02           7915         +              Normal
  05/19/2026 05 PM PDT          129.03           7940         +              Normal
  05/19/2026 06 PM PDT          129.03           7940         0              Normal
  05/19/2026 07 PM PDT          129.03           7940         0              Normal
  05/19/2026 08 PM PDT          129.03           7940         0              Normal
  05/19/2026 09 PM PDT          129.04           7965         +              Normal
  05/19/2026 10 PM PDT          129.04           7965         0              Normal
  05/19/2026 11 PM PDT          129.04           7965         0              Normal
  05/20/2026 12 AM PDT          129.04           7965         0              Normal
  05/20/2026 01 AM PDT          129.04           7965         0              Normal
  05/20/2026 02 AM PDT          129.04           7965         0              Normal
  05/20/2026 03 AM PDT          129.04           7965         0              Normal
  05/20/2026 04 AM PDT          129.04           7965         0              Normal
  05/20/2026 05 AM PDT          129.04           7965         0              Normal
  05/20/2026 06 AM PDT          129.04           7965         0              Normal
  05/20/2026 07 AM PDT          129.04           7965         0              Normal
  05/20/2026 08 AM PDT          129.04           7965         0              Normal
  05/20/2026 09 AM PDT          129.04           7965         0              Normal
  05/20/2026 10 AM PDT          129.04           7965         0              Normal
  05/20/2026 11 AM PDT          129.04           7965         0              Normal
  05/20/2026 12 PM PDT          129.05           7990         +              Normal
  05/20/2026 01 PM PDT          129.05           7990         0              Normal
  05/20/2026 02 PM PDT          129.06           8014         +              Normal
  05/20/2026 03 PM PDT          129.07           8040         +              Normal
  05/20/2026 04 PM PDT          129.07           8040         0              Normal
  05/20/2026 05 PM PDT          129.08           8065         +              Normal
  05/20/2026 06 PM PDT          129.09           8090         +              Normal
  05/20/2026 07 PM PDT          129.09           8090         0              Normal
  05/20/2026 08 PM PDT          129.10           8115         +              Normal
  05/20/2026 09 PM PDT          129.10           8115         0              Normal
  05/20/2026 10 PM PDT          129.10           8115         0              Normal
  05/20/2026 11 PM PDT          129.10           8115         0              Normal
  05/21/2026 12 AM PDT          129.11           8140         +              Normal
  05/21/2026 01 AM PDT          129.11           8140         0              Normal
  05/21/2026 02 AM PDT          129.11           8140         0              Normal
  05/21/2026 03 AM PDT          129.11           8140         0              Normal
  05/21/2026 04 AM PDT          129.11           8140         0              Normal
  05/21/2026 05 AM PDT          129.11           8140         0              Normal
  05/21/2026 06 AM PDT          129.11           8140         0              Normal
  05/21/2026 07 AM PDT          129.11           8140         0              Normal
  05/21/2026 08 AM PDT          129.11           8140         0              Normal
  05/21/2026 09 AM PDT          129.11           8140         0              Normal
  05/21/2026 10 AM PDT          129.11           8140         0              Normal
  05/21/2026 11 AM PDT          129.11           8140         0              Normal
  05/21/2026 12 PM PDT          129.11           8140         0              Normal
  05/21/2026 01 PM PDT          129.11           8140         0              Normal
  05/21/2026 02 PM PDT          129.11           8140         0              Normal
  05/21/2026 03 PM PDT          129.11           8140         0              Normal
  05/21/2026 04 PM PDT          129.11           8140         0              Normal
  05/21/2026 05 PM PDT          129.11           8140         0              Normal
  05/21/2026 06 PM PDT          129.11           8140         0              Normal
  05/21/2026 07 PM PDT          129.10           8115         -              Normal
  05/21/2026 08 PM PDT          129.10           8115         0              Normal
  05/21/2026 09 PM PDT          129.10           8115         0              Normal
  05/21/2026 10 PM PDT          129.10           8115         0              Normal
  05/21/2026 11 PM PDT          129.10           8115         0              Normal
  05/22/2026 12 AM PDT          129.10           8115         0              Normal
  05/22/2026 01 AM PDT          129.10           8115         0              Normal
  05/22/2026 02 AM PDT          129.10           8115         0              Normal
  05/22/2026 03 AM PDT          129.10           8115         0              Normal
  05/22/2026 04 AM PDT          129.10           8115         0              Normal
  05/22/2026 05 AM PDT          129.10           8115         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.