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 07 2026 at 1:56 PM PDTNext Issuance: Apr 08 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:  04/07/2026 at 01:56 PM 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:     04/12/2026 at 05:00 AM PDT
# Maximum Forecast Stage:                       130.45 Feet
# Maximum Forecast Flow:                        12119 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  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          128.62           6926         -              Normal
  04/03/2026 07 AM PDT          128.58           6827         -              Normal
  04/03/2026 08 AM PDT          128.50           6632         -              Normal
  04/03/2026 09 AM PDT          128.50           6632         0              Normal
  04/03/2026 10 AM PDT          128.47           6558         -              Normal
  04/03/2026 11 AM PDT          128.43           6460         -              Normal
  04/03/2026 12 PM PDT          128.38           6338         -              Normal
  04/03/2026 01 PM PDT          128.38           6338         0              Normal
  04/03/2026 02 PM PDT          128.36           6289         -              Normal
  04/03/2026 03 PM PDT          128.35           6265         -              Normal
  04/03/2026 04 PM PDT          128.33           6216         -              Normal
  04/03/2026 05 PM PDT          128.32           6192         -              Normal
  04/03/2026 06 PM PDT          128.31           6168         -              Normal
  04/03/2026 07 PM PDT          128.31           6168         0              Normal
  04/03/2026 08 PM PDT          128.29           6119         -              Normal
  04/03/2026 09 PM PDT          128.28           6095         -              Normal
  04/03/2026 10 PM PDT          128.26           6046         -              Normal
  04/03/2026 11 PM PDT          128.25           6022         -              Normal
  04/04/2026 12 AM PDT          128.25           6022         0              Normal
  04/04/2026 01 AM PDT          128.25           6022         0              Normal
  04/04/2026 02 AM PDT          128.26           6046         +              Normal
  04/04/2026 03 AM PDT          128.26           6046         0              Normal
  04/04/2026 04 AM PDT          128.26           6046         0              Normal
  04/04/2026 05 AM PDT          128.25           6022         -              Normal
  04/04/2026 06 AM PDT          128.25           6022         0              Normal
  04/04/2026 07 AM PDT          128.24           5998         -              Normal
  04/04/2026 08 AM PDT          128.24           5998         0              Normal
  04/04/2026 09 AM PDT          128.24           5998         0              Normal
  04/04/2026 10 AM PDT          128.24           5998         0              Normal
  04/04/2026 11 AM PDT          128.25           6022         +              Normal
  04/04/2026 12 PM PDT          128.25           6022         0              Normal
  04/04/2026 01 PM PDT          128.25           6022         0              Normal
  04/04/2026 02 PM PDT          128.25           6022         0              Normal
  04/04/2026 03 PM PDT          128.25           6022         0              Normal
  04/04/2026 04 PM PDT          128.24           5998         -              Normal
  04/04/2026 05 PM PDT          128.24           5998         0              Normal
  04/04/2026 06 PM PDT          128.23           5974         -              Normal
  04/04/2026 07 PM PDT          128.21           5926         -              Normal
  04/04/2026 08 PM PDT          128.20           5902         -              Normal
  04/04/2026 09 PM PDT          128.19           5877         -              Normal
  04/04/2026 10 PM PDT          128.18           5853         -              Normal
  04/04/2026 11 PM PDT          128.16           5804         -              Normal
  04/05/2026 12 AM PDT          128.15           5780         -              Normal
  04/05/2026 01 AM PDT          128.14           5756         -              Normal
  04/05/2026 02 AM PDT          128.14           5756         0              Normal
  04/05/2026 03 AM PDT          128.13           5732         -              Normal
  04/05/2026 04 AM PDT          128.13           5732         0              Normal
  04/05/2026 05 AM PDT          128.13           5732         0              Normal
  04/05/2026 06 AM PDT          128.12           5708         -              Normal
  04/05/2026 07 AM PDT          128.12           5708         0              Normal
  04/05/2026 08 AM PDT          128.11           5684         -              Normal
  04/05/2026 09 AM PDT          128.11           5684         0              Normal
  04/05/2026 10 AM PDT          128.11           5684         0              Normal
  04/05/2026 11 AM PDT          128.11           5684         0              Normal
  04/05/2026 12 PM PDT          128.11           5684         0              Normal
  04/05/2026 01 PM PDT          128.12           5708         +              Normal
  04/05/2026 02 PM PDT          128.12           5708         0              Normal
  04/05/2026 03 PM PDT          128.12           5708         0              Normal
  04/05/2026 04 PM PDT          128.12           5708         0              Normal
  04/05/2026 05 PM PDT          128.12           5708         0              Normal
  04/05/2026 06 PM PDT          128.11           5684         -              Normal
  04/05/2026 07 PM PDT          128.10           5660         -              Normal
  04/05/2026 08 PM PDT          128.09           5636         -              Normal
  04/05/2026 09 PM PDT          128.09           5636         0              Normal
  04/05/2026 10 PM PDT          128.08           5611         -              Normal
  04/05/2026 11 PM PDT          128.08           5611         0              Normal
  04/06/2026 12 AM PDT          128.08           5611         0              Normal
  04/06/2026 01 AM PDT          128.08           5611         0              Normal
  04/06/2026 02 AM PDT          128.08           5611         0              Normal
  04/06/2026 03 AM PDT          128.08           5611         0              Normal
  04/06/2026 04 AM PDT          128.08           5611         0              Normal
  04/06/2026 05 AM PDT          128.08           5611         0              Normal
  04/06/2026 06 AM PDT          128.07           5587         -              Normal
  04/06/2026 07 AM PDT          128.07           5587         0              Normal
  04/06/2026 08 AM PDT          128.07           5587         0              Normal
  04/06/2026 09 AM PDT          128.07           5587         0              Normal
  04/06/2026 10 AM PDT          128.07           5587         0              Normal
  04/06/2026 11 AM PDT          128.07           5587         0              Normal
  04/06/2026 12 PM PDT          128.07           5587         0              Normal
  04/06/2026 01 PM PDT          128.08           5611         +              Normal
  04/06/2026 02 PM PDT          128.08           5611         0              Normal
  04/06/2026 03 PM PDT          128.08           5611         0              Normal
  04/06/2026 04 PM PDT          128.06           5563         -              Normal
  04/06/2026 05 PM PDT          128.06           5563         0              Normal
  04/06/2026 06 PM PDT          128.05           5539         -              Normal
  04/06/2026 07 PM PDT          128.03           5491         -              Normal
  04/06/2026 08 PM PDT          128.01           5444         -              Normal
  04/06/2026 09 PM PDT          128.01           5444         0              Normal
  04/06/2026 10 PM PDT          128.02           5467         +              Normal
  04/06/2026 11 PM PDT          128.02           5467         0              Normal
  04/07/2026 12 AM PDT          128.04           5515         +              Normal
  04/07/2026 01 AM PDT          128.13           5732         +              Normal
  04/07/2026 02 AM PDT          128.19           5877         +              Normal
  04/07/2026 03 AM PDT          128.23           5974         +              Normal
  04/07/2026 04 AM PDT          128.25           6022         +              Normal
  04/07/2026 05 AM PDT          128.27           6070         +              Normal
  04/07/2026 06 AM PDT          128.28           6095         +              Normal
  04/07/2026 07 AM PDT          128.26           6046         -              Normal
  04/07/2026 08 AM PDT          128.25           6022         -              Normal
  04/07/2026 09 AM PDT          128.24           5998         -              Normal
  04/07/2026 10 AM PDT          128.24           5998         0              Normal
  04/07/2026 11 AM PDT          128.23           5974         -              Normal
  04/07/2026 12 PM PDT          128.23           5974         0              Normal
  04/07/2026 01 PM PDT          128.23           5974         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/07/2026 02 PM PDT          128.24           5998                        Normal
  04/07/2026 03 PM PDT          128.24           5998         0              Normal
  04/07/2026 04 PM PDT          128.24           5998         0              Normal
  04/07/2026 05 PM PDT          128.24           5998         0              Normal
  04/07/2026 06 PM PDT          128.24           5998         0              Normal
  04/07/2026 07 PM PDT          128.24           5998         0              Normal
  04/07/2026 08 PM PDT          128.24           5998         0              Normal
  04/07/2026 09 PM PDT          128.24           5998         0              Normal
  04/07/2026 10 PM PDT          128.23           5974         -              Normal
  04/07/2026 11 PM PDT          128.23           5974         0              Normal
  04/08/2026 12 AM PDT          128.23           5974         0              Normal
  04/08/2026 01 AM PDT          128.23           5974         0              Normal
  04/08/2026 02 AM PDT          128.23           5974         0              Normal
  04/08/2026 03 AM PDT          128.23           5974         0              Normal
  04/08/2026 04 AM PDT          128.23           5974         0              Normal
  04/08/2026 05 AM PDT          128.24           5998         +              Normal
  04/08/2026 06 AM PDT          128.24           5998         0              Normal
  04/08/2026 07 AM PDT          128.24           5998         0              Normal
  04/08/2026 08 AM PDT          128.24           5998         0              Normal
  04/08/2026 09 AM PDT          128.24           5998         0              Normal
  04/08/2026 10 AM PDT          128.24           5998         0              Normal
  04/08/2026 11 AM PDT          128.23           5974         -              Normal
  04/08/2026 12 PM PDT          128.23           5974         0              Normal
  04/08/2026 01 PM PDT          128.23           5974         0              Normal
  04/08/2026 02 PM PDT          128.23           5974         0              Normal
  04/08/2026 03 PM PDT          128.23           5974         0              Normal
  04/08/2026 04 PM PDT          128.23           5974         0              Normal
  04/08/2026 05 PM PDT          128.24           5998         +              Normal
  04/08/2026 06 PM PDT          128.25           6022         +              Normal
  04/08/2026 07 PM PDT          128.30           6144         +              Normal
  04/08/2026 08 PM PDT          128.40           6388         +              Normal
  04/08/2026 09 PM PDT          128.55           6753         +              Normal
  04/08/2026 10 PM PDT          128.74           7221         +              Normal
  04/08/2026 11 PM PDT          128.94           7716         +              Normal
  04/09/2026 12 AM PDT          129.13           8189         +              Normal
  04/09/2026 01 AM PDT          129.31           8640         +              Normal
  04/09/2026 02 AM PDT          129.47           9042         +              Normal
  04/09/2026 03 AM PDT          129.61           9397         +              Normal
  04/09/2026 04 AM PDT          129.72           9706         +              Normal
  04/09/2026 05 AM PDT          129.78           9918         +              Normal
  04/09/2026 06 AM PDT          129.84          10132         +              Normal
  04/09/2026 07 AM PDT          129.88          10277         +              Normal
  04/09/2026 08 AM PDT          129.91          10383         +              Normal
  04/09/2026 09 AM PDT          129.93          10448         +              Normal
  04/09/2026 10 AM PDT          129.95          10514         +              Normal
  04/09/2026 11 AM PDT          129.97          10580         +              Normal
  04/09/2026 12 PM PDT          129.98          10613         +              Normal
  04/09/2026 01 PM PDT          129.99          10647         +              Normal
  04/09/2026 02 PM PDT          130.01          10712         +              Normal
  04/09/2026 03 PM PDT          130.02          10743         +              Normal
  04/09/2026 04 PM PDT          130.03          10775         +              Normal
  04/09/2026 05 PM PDT          130.04          10807         +              Normal
  04/09/2026 06 PM PDT          130.04          10807         0              Normal
  04/09/2026 07 PM PDT          130.05          10839         +              Normal
  04/09/2026 08 PM PDT          130.06          10871         +              Normal
  04/09/2026 09 PM PDT          130.06          10871         0              Normal
  04/09/2026 10 PM PDT          130.06          10871         0              Normal
  04/09/2026 11 PM PDT          130.06          10871         0              Normal
  04/10/2026 12 AM PDT          130.06          10871         0              Normal
  04/10/2026 01 AM PDT          130.06          10871         0              Normal
  04/10/2026 02 AM PDT          130.06          10871         0              Normal
  04/10/2026 03 AM PDT          130.05          10839         -              Normal
  04/10/2026 04 AM PDT          130.05          10839         0              Normal
  04/10/2026 05 AM PDT          130.05          10839         0              Normal
  04/10/2026 06 AM PDT          130.05          10839         0              Normal
  04/10/2026 07 AM PDT          130.05          10839         0              Normal
  04/10/2026 08 AM PDT          130.06          10871         +              Normal
  04/10/2026 09 AM PDT          130.06          10871         0              Normal
  04/10/2026 10 AM PDT          130.07          10903         +              Normal
  04/10/2026 11 AM PDT          130.08          10935         +              Normal
  04/10/2026 12 PM PDT          130.09          10968         +              Normal
  04/10/2026 01 PM PDT          130.10          11000         +              Normal
  04/10/2026 02 PM PDT          130.11          11031         +              Normal
  04/10/2026 03 PM PDT          130.12          11061         +              Normal
  04/10/2026 04 PM PDT          130.13          11092         +              Normal
  04/10/2026 05 PM PDT          130.15          11154         +              Normal
  04/10/2026 06 PM PDT          130.16          11185         +              Normal
  04/10/2026 07 PM PDT          130.17          11216         +              Normal
  04/10/2026 08 PM PDT          130.17          11216         0              Normal
  04/10/2026 09 PM PDT          130.18          11247         +              Normal
  04/10/2026 10 PM PDT          130.18          11247         0              Normal
  04/10/2026 11 PM PDT          130.17          11216         -              Normal
  04/11/2026 12 AM PDT          130.17          11216         0              Normal
  04/11/2026 01 AM PDT          130.16          11185         -              Normal
  04/11/2026 02 AM PDT          130.16          11185         0              Normal
  04/11/2026 03 AM PDT          130.16          11185         0              Normal
  04/11/2026 04 AM PDT          130.16          11185         0              Normal
  04/11/2026 05 AM PDT          130.16          11185         0              Normal
  04/11/2026 06 AM PDT          130.17          11216         +              Normal
  04/11/2026 07 AM PDT          130.18          11247         +              Normal
  04/11/2026 08 AM PDT          130.19          11279         +              Normal
  04/11/2026 09 AM PDT          130.20          11310         +              Normal
  04/11/2026 10 AM PDT          130.22          11373         +              Normal
  04/11/2026 11 AM PDT          130.24          11437         +              Normal
  04/11/2026 12 PM PDT          130.27          11533         +              Normal
  04/11/2026 01 PM PDT          130.29          11598         +              Normal
  04/11/2026 02 PM PDT          130.31          11663         +              Normal
  04/11/2026 03 PM PDT          130.32          11695         +              Normal
  04/11/2026 04 PM PDT          130.33          11728         +              Normal
  04/11/2026 05 PM PDT          130.34          11761         +              Normal
  04/11/2026 06 PM PDT          130.34          11761         0              Normal
  04/11/2026 07 PM PDT          130.34          11761         0              Normal
  04/11/2026 08 PM PDT          130.34          11761         0              Normal
  04/11/2026 09 PM PDT          130.33          11728         -              Normal
  04/11/2026 10 PM PDT          130.32          11695         -              Normal
  04/11/2026 11 PM PDT          130.32          11695         0              Normal
  04/12/2026 12 AM PDT          130.32          11695         0              Normal
  04/12/2026 01 AM PDT          130.33          11728         +              Normal
  04/12/2026 02 AM PDT          130.34          11761         +              Normal
  04/12/2026 03 AM PDT          130.37          11860         +              Normal
  04/12/2026 04 AM PDT          130.40          11960         +              Normal
  04/12/2026 05 AM PDT          130.45          12119         +              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.