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 - 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: Apr 03 2026 at 7:37 AM PDTNext Issuance: Apr 03 2026 at 3:00 PM 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:  04/03/2026 at 07:37 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/03/2026 at 01:00 AM PDT
# Maximum Observed Stage:                       128.76 Feet
# Maximum Observed Flow:                        7270 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/03/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       128.56 Feet
# Maximum Forecast Flow:                        6778 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/29/2026 07 AM PDT          128.19           5877                        Normal
  03/29/2026 08 AM PDT          128.19           5877         0              Normal
  03/29/2026 09 AM PDT          128.20           5902         +              Normal
  03/29/2026 10 AM PDT          128.20           5902         0              Normal
  03/29/2026 11 AM PDT          128.21           5926         +              Normal
  03/29/2026 12 PM PDT          128.21           5926         0              Normal
  03/29/2026 01 PM PDT          128.22           5950         +              Normal
  03/29/2026 02 PM PDT          128.21           5926         -              Normal
  03/29/2026 03 PM PDT          128.21           5926         0              Normal
  03/29/2026 04 PM PDT          128.20           5902         -              Normal
  03/29/2026 05 PM PDT          128.20           5902         0              Normal
  03/29/2026 06 PM PDT          128.18           5853         -              Normal
  03/29/2026 07 PM PDT          128.18           5853         0              Normal
  03/29/2026 08 PM PDT          128.17           5828         -              Normal
  03/29/2026 09 PM PDT          128.17           5828         0              Normal
  03/29/2026 10 PM PDT          128.16           5804         -              Normal
  03/29/2026 11 PM PDT          128.16           5804         0              Normal
  03/30/2026 12 AM PDT          128.17           5828         +              Normal
  03/30/2026 01 AM PDT          128.18           5853         +              Normal
  03/30/2026 02 AM PDT          128.19           5877         +              Normal
  03/30/2026 03 AM PDT          128.19           5877         0              Normal
  03/30/2026 04 AM PDT          128.20           5902         +              Normal
  03/30/2026 05 AM PDT          128.19           5877         -              Normal
  03/30/2026 06 AM PDT          128.19           5877         0              Normal
  03/30/2026 07 AM PDT          128.19           5877         0              Normal
  03/30/2026 08 AM PDT          128.18           5853         -              Normal
  03/30/2026 09 AM PDT          128.18           5853         0              Normal
  03/30/2026 10 AM PDT          128.17           5828         -              Normal
  03/30/2026 11 AM PDT          128.16           5804         -              Normal
  03/30/2026 12 PM PDT          128.15           5780         -              Normal
  03/30/2026 01 PM PDT          128.15           5780         0              Normal
  03/30/2026 02 PM PDT          128.16           5804         +              Normal
  03/30/2026 03 PM PDT          128.16           5804         0              Normal
  03/30/2026 04 PM PDT          128.17           5828         +              Normal
  03/30/2026 05 PM PDT          128.17           5828         0              Normal
  03/30/2026 06 PM PDT          128.17           5828         0              Normal
  03/30/2026 07 PM PDT          128.17           5828         0              Normal
  03/30/2026 08 PM PDT          128.15           5780         -              Normal
  03/30/2026 09 PM PDT          128.14           5756         -              Normal
  03/30/2026 10 PM PDT          128.12           5708         -              Normal
  03/30/2026 11 PM PDT          128.10           5660         -              Normal
  03/31/2026 12 AM PDT          128.10           5660         0              Normal
  03/31/2026 01 AM PDT          128.09           5636         -              Normal
  03/31/2026 02 AM PDT          128.09           5636         0              Normal
  03/31/2026 03 AM PDT          128.09           5636         0              Normal
  03/31/2026 04 AM PDT          128.10           5660         +              Normal
  03/31/2026 05 AM PDT          128.08           5611         -              Normal
  03/31/2026 06 AM PDT          128.07           5587         -              Normal
  03/31/2026 07 AM PDT          128.06           5563         -              Normal
  03/31/2026 08 AM PDT          128.08           5611         +              Normal
  03/31/2026 09 AM PDT          128.06           5563         -              Normal
  03/31/2026 10 AM PDT          128.09           5636         +              Normal
  03/31/2026 11 AM PDT          128.09           5636         0              Normal
  03/31/2026 12 PM PDT          128.09           5636         0              Normal
  03/31/2026 01 PM PDT          128.09           5636         0              Normal
  03/31/2026 02 PM PDT          128.09           5636         0              Normal
  03/31/2026 03 PM PDT          128.09           5636         0              Normal
  03/31/2026 04 PM PDT          128.09           5636         0              Normal
  03/31/2026 05 PM PDT          128.08           5611         -              Normal
  03/31/2026 06 PM PDT          128.07           5587         -              Normal
  03/31/2026 07 PM PDT          128.06           5563         -              Normal
  03/31/2026 08 PM PDT          128.06           5563         0              Normal
  03/31/2026 09 PM PDT          128.05           5539         -              Normal
  03/31/2026 10 PM PDT          128.06           5563         +              Normal
  03/31/2026 11 PM PDT          128.07           5587         +              Normal
  04/01/2026 12 AM PDT          128.06           5563         -              Normal
  04/01/2026 01 AM PDT          128.09           5636         +              Normal
  04/01/2026 02 AM PDT          128.05           5539         -              Normal
  04/01/2026 03 AM PDT          128.05           5539         0              Normal
  04/01/2026 04 AM PDT          128.05           5539         0              Normal
  04/01/2026 05 AM PDT          128.05           5539         0              Normal
  04/01/2026 06 AM PDT          128.05           5539         0              Normal
  04/01/2026 07 AM PDT          128.05           5539         0              Normal
  04/01/2026 08 AM PDT          128.09           5636         +              Normal
  04/01/2026 09 AM PDT          128.12           5708         +              Normal
  04/01/2026 10 AM PDT          128.12           5708         0              Normal
  04/01/2026 11 AM PDT          128.12           5708         0              Normal
  04/01/2026 12 PM PDT          128.12           5708         0              Normal
  04/01/2026 01 PM PDT          128.13           5732         +              Normal
  04/01/2026 02 PM PDT          128.13           5732         0              Normal
  04/01/2026 03 PM PDT          128.12           5708         -              Normal
  04/01/2026 04 PM PDT          128.14           5756         +              Normal
  04/01/2026 05 PM PDT          128.16           5804         +              Normal
  04/01/2026 06 PM PDT          128.17           5828         +              Normal
  04/01/2026 07 PM PDT          128.17           5828         0              Normal
  04/01/2026 08 PM PDT          128.18           5853         +              Normal
  04/01/2026 09 PM PDT          128.19           5877         +              Normal
  04/01/2026 10 PM PDT          128.20           5902         +              Normal
  04/01/2026 11 PM PDT          128.22           5950         +              Normal
  04/02/2026 12 AM PDT          128.24           5998         +              Normal
  04/02/2026 01 AM PDT          128.26           6046         +              Normal
  04/02/2026 02 AM PDT          128.28           6095         +              Normal
  04/02/2026 03 AM PDT          128.30           6144         +              Normal
  04/02/2026 04 AM PDT          128.32           6192         +              Normal
  04/02/2026 05 AM PDT          128.34           6240         +              Normal
  04/02/2026 06 AM PDT          128.36           6289         +              Normal
  04/02/2026 07 AM PDT          128.38           6338         +              Normal
  04/02/2026 08 AM PDT          128.40           6388         +              Normal
  04/02/2026 09 AM PDT          128.43           6460         +              Normal
  04/02/2026 10 AM PDT          128.45           6509         +              Normal
  04/02/2026 11 AM PDT          128.45           6509         0              Normal
  04/02/2026 12 PM PDT          128.50           6632         +              Normal
  04/02/2026 01 PM PDT          128.52           6680         +              Normal
  04/02/2026 02 PM PDT          128.58           6827         +              Normal
  04/02/2026 03 PM PDT          128.61           6901         +              Normal
  04/02/2026 04 PM PDT          128.63           6950         +              Normal
  04/02/2026 05 PM PDT          128.65           6999         +              Normal
  04/02/2026 06 PM PDT          128.67           7048         +              Normal
  04/02/2026 07 PM PDT          128.70           7123         +              Normal
  04/02/2026 08 PM PDT          128.72           7172         +              Normal
  04/02/2026 09 PM PDT          128.73           7196         +              Normal
  04/02/2026 10 PM PDT          128.75           7245         +              Normal
  04/02/2026 11 PM PDT          128.74           7221         -              Normal
  04/03/2026 12 AM PDT          128.74           7221         0              Normal
  04/03/2026 01 AM PDT          128.76           7270         +              Normal
  04/03/2026 02 AM PDT          128.75           7245         -              Normal
  04/03/2026 03 AM PDT          128.71           7147         -              Normal
  04/03/2026 04 AM PDT          128.70           7123         -              Normal
  04/03/2026 05 AM PDT          128.66           7024         -              Normal
  04/03/2026 06 AM PDT          128.63           6950         -              Normal
  04/03/2026 07 AM PDT          128.59           6852         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/03/2026 08 AM PDT          128.56           6778                        Normal
  04/03/2026 09 AM PDT          128.53           6705         -              Normal
  04/03/2026 10 AM PDT          128.49           6607         -              Normal
  04/03/2026 11 AM PDT          128.47           6558         -              Normal
  04/03/2026 12 PM PDT          128.44           6485         -              Normal
  04/03/2026 01 PM PDT          128.42           6436         -              Normal
  04/03/2026 02 PM PDT          128.40           6388         -              Normal
  04/03/2026 03 PM PDT          128.38           6338         -              Normal
  04/03/2026 04 PM PDT          128.36           6289         -              Normal
  04/03/2026 05 PM PDT          128.35           6265         -              Normal
  04/03/2026 06 PM PDT          128.33           6216         -              Normal
  04/03/2026 07 PM PDT          128.32           6192         -              Normal
  04/03/2026 08 PM PDT          128.31           6168         -              Normal
  04/03/2026 09 PM PDT          128.29           6119         -              Normal
  04/03/2026 10 PM PDT          128.28           6095         -              Normal
  04/03/2026 11 PM PDT          128.27           6070         -              Normal
  04/04/2026 12 AM PDT          128.27           6070         0              Normal
  04/04/2026 01 AM PDT          128.26           6046         -              Normal
  04/04/2026 02 AM PDT          128.25           6022         -              Normal
  04/04/2026 03 AM PDT          128.24           5998         -              Normal
  04/04/2026 04 AM PDT          128.24           5998         0              Normal
  04/04/2026 05 AM PDT          128.23           5974         -              Normal
  04/04/2026 06 AM PDT          128.23           5974         0              Normal
  04/04/2026 07 AM PDT          128.23           5974         0              Normal
  04/04/2026 08 AM PDT          128.22           5950         -              Normal
  04/04/2026 09 AM PDT          128.22           5950         0              Normal
  04/04/2026 10 AM PDT          128.22           5950         0              Normal
  04/04/2026 11 AM PDT          128.22           5950         0              Normal
  04/04/2026 12 PM PDT          128.23           5974         +              Normal
  04/04/2026 01 PM PDT          128.23           5974         0              Normal
  04/04/2026 02 PM PDT          128.23           5974         0              Normal
  04/04/2026 03 PM PDT          128.23           5974         0              Normal
  04/04/2026 04 PM PDT          128.23           5974         0              Normal
  04/04/2026 05 PM PDT          128.24           5998         +              Normal
  04/04/2026 06 PM PDT          128.24           5998         0              Normal
  04/04/2026 07 PM PDT          128.24           5998         0              Normal
  04/04/2026 08 PM PDT          128.23           5974         -              Normal
  04/04/2026 09 PM PDT          128.23           5974         0              Normal
  04/04/2026 10 PM PDT          128.23           5974         0              Normal
  04/04/2026 11 PM PDT          128.23           5974         0              Normal
  04/05/2026 12 AM PDT          128.22           5950         -              Normal
  04/05/2026 01 AM PDT          128.22           5950         0              Normal
  04/05/2026 02 AM PDT          128.22           5950         0              Normal
  04/05/2026 03 AM PDT          128.21           5926         -              Normal
  04/05/2026 04 AM PDT          128.21           5926         0              Normal
  04/05/2026 05 AM PDT          128.20           5902         -              Normal
  04/05/2026 06 AM PDT          128.20           5902         0              Normal
  04/05/2026 07 AM PDT          128.20           5902         0              Normal
  04/05/2026 08 AM PDT          128.19           5877         -              Normal
  04/05/2026 09 AM PDT          128.19           5877         0              Normal
  04/05/2026 10 AM PDT          128.19           5877         0              Normal
  04/05/2026 11 AM PDT          128.19           5877         0              Normal
  04/05/2026 12 PM PDT          128.19           5877         0              Normal
  04/05/2026 01 PM PDT          128.19           5877         0              Normal
  04/05/2026 02 PM PDT          128.19           5877         0              Normal
  04/05/2026 03 PM PDT          128.18           5853         -              Normal
  04/05/2026 04 PM PDT          128.18           5853         0              Normal
  04/05/2026 05 PM PDT          128.18           5853         0              Normal
  04/05/2026 06 PM PDT          128.18           5853         0              Normal
  04/05/2026 07 PM PDT          128.18           5853         0              Normal
  04/05/2026 08 PM PDT          128.18           5853         0              Normal
  04/05/2026 09 PM PDT          128.18           5853         0              Normal
  04/05/2026 10 PM PDT          128.18           5853         0              Normal
  04/05/2026 11 PM PDT          128.17           5828         -              Normal
  04/06/2026 12 AM PDT          128.17           5828         0              Normal
  04/06/2026 01 AM PDT          128.17           5828         0              Normal
  04/06/2026 02 AM PDT          128.17           5828         0              Normal
  04/06/2026 03 AM PDT          128.16           5804         -              Normal
  04/06/2026 04 AM PDT          128.16           5804         0              Normal
  04/06/2026 05 AM PDT          128.16           5804         0              Normal
  04/06/2026 06 AM PDT          128.16           5804         0              Normal
  04/06/2026 07 AM PDT          128.16           5804         0              Normal
  04/06/2026 08 AM PDT          128.16           5804         0              Normal
  04/06/2026 09 AM PDT          128.15           5780         -              Normal
  04/06/2026 10 AM PDT          128.15           5780         0              Normal
  04/06/2026 11 AM PDT          128.15           5780         0              Normal
  04/06/2026 12 PM PDT          128.15           5780         0              Normal
  04/06/2026 01 PM PDT          128.15           5780         0              Normal
  04/06/2026 02 PM PDT          128.15           5780         0              Normal
  04/06/2026 03 PM PDT          128.15           5780         0              Normal
  04/06/2026 04 PM PDT          128.15           5780         0              Normal
  04/06/2026 05 PM PDT          128.15           5780         0              Normal
  04/06/2026 06 PM PDT          128.15           5780         0              Normal
  04/06/2026 07 PM PDT          128.16           5804         +              Normal
  04/06/2026 08 PM PDT          128.19           5877         +              Normal
  04/06/2026 09 PM PDT          128.22           5950         +              Normal
  04/06/2026 10 PM PDT          128.25           6022         +              Normal
  04/06/2026 11 PM PDT          128.29           6119         +              Normal
  04/07/2026 12 AM PDT          128.32           6192         +              Normal
  04/07/2026 01 AM PDT          128.35           6265         +              Normal
  04/07/2026 02 AM PDT          128.38           6338         +              Normal
  04/07/2026 03 AM PDT          128.40           6388         +              Normal
  04/07/2026 04 AM PDT          128.41           6412         +              Normal
  04/07/2026 05 AM PDT          128.43           6460         +              Normal
  04/07/2026 06 AM PDT          128.44           6485         +              Normal
  04/07/2026 07 AM PDT          128.44           6485         0              Normal
  04/07/2026 08 AM PDT          128.45           6509         +              Normal
  04/07/2026 09 AM PDT          128.45           6509         0              Normal
  04/07/2026 10 AM PDT          128.45           6509         0              Normal
  04/07/2026 11 AM PDT          128.46           6533         +              Normal
  04/07/2026 12 PM PDT          128.46           6533         0              Normal
  04/07/2026 01 PM PDT          128.46           6533         0              Normal
  04/07/2026 02 PM PDT          128.46           6533         0              Normal
  04/07/2026 03 PM PDT          128.46           6533         0              Normal
  04/07/2026 04 PM PDT          128.45           6509         -              Normal
  04/07/2026 05 PM PDT          128.45           6509         0              Normal
  04/07/2026 06 PM PDT          128.45           6509         0              Normal
  04/07/2026 07 PM PDT          128.45           6509         0              Normal
  04/07/2026 08 PM PDT          128.45           6509         0              Normal
  04/07/2026 09 PM PDT          128.45           6509         0              Normal
  04/07/2026 10 PM PDT          128.45           6509         0              Normal
  04/07/2026 11 PM PDT          128.45           6509         0              Normal
  04/08/2026 12 AM PDT          128.45           6509         0              Normal
  04/08/2026 01 AM PDT          128.45           6509         0              Normal
  04/08/2026 02 AM PDT          128.45           6509         0              Normal
  04/08/2026 03 AM PDT          128.45           6509         0              Normal
  04/08/2026 04 AM PDT          128.44           6485         -              Normal
  04/08/2026 05 AM PDT          128.44           6485         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.