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: Oct 21 2026 at 7:44 AM PDTNext Issuance: Oct 22 2026 at 9:00 AM PDT
Action: 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:  10/21/2026 at 07:44 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/21/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       127.61 Feet
# Maximum Observed Flow:                        4553 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/23/2026 at 09:00 AM PDT
# Maximum Forecast Stage:                       127.78 Feet
# Maximum Forecast Flow:                        4928 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/16/2026 07 AM PDT          127.54           4398                        Normal
  10/16/2026 08 AM PDT          127.53           4376         -              Normal
  10/16/2026 09 AM PDT          127.54           4398         +              Normal
  10/16/2026 10 AM PDT          127.55           4420         +              Normal
  10/16/2026 11 AM PDT          127.54           4398         -              Normal
  10/16/2026 12 PM PDT          127.54           4398         0              Normal
  10/16/2026 01 PM PDT          127.56           4442         +              Normal
  10/16/2026 02 PM PDT          127.56           4442         0              Normal
  10/16/2026 03 PM PDT          127.56           4442         0              Normal
  10/16/2026 04 PM PDT          127.56           4442         0              Normal
  10/16/2026 05 PM PDT          127.57           4464         +              Normal
  10/16/2026 06 PM PDT          127.57           4464         0              Normal
  10/16/2026 07 PM PDT          127.57           4464         0              Normal
  10/16/2026 08 PM PDT          127.58           4486         +              Normal
  10/16/2026 09 PM PDT          127.57           4464         -              Normal
  10/16/2026 10 PM PDT          127.57           4464         0              Normal
  10/16/2026 11 PM PDT          127.58           4486         +              Normal
  10/17/2026 12 AM PDT          127.58           4486         0              Normal
  10/17/2026 01 AM PDT          127.57           4464         -              Normal
  10/17/2026 02 AM PDT          127.57           4464         0              Normal
  10/17/2026 03 AM PDT          127.57           4464         0              Normal
  10/17/2026 04 AM PDT          127.57           4464         0              Normal
  10/17/2026 05 AM PDT          127.57           4464         0              Normal
  10/17/2026 06 AM PDT          127.56           4442         -              Normal
  10/17/2026 07 AM PDT          127.56           4442         0              Normal
  10/17/2026 08 AM PDT          127.55           4420         -              Normal
  10/17/2026 09 AM PDT          127.56           4442         +              Normal
  10/17/2026 10 AM PDT          127.55           4420         -              Normal
  10/17/2026 11 AM PDT          127.56           4442         +              Normal
  10/17/2026 12 PM PDT          127.56           4442         0              Normal
  10/17/2026 01 PM PDT          127.57           4464         +              Normal
  10/17/2026 02 PM PDT          127.57           4464         0              Normal
  10/17/2026 03 PM PDT          127.57           4464         0              Normal
  10/17/2026 04 PM PDT          127.57           4464         0              Normal
  10/17/2026 05 PM PDT          127.57           4464         0              Normal
  10/17/2026 06 PM PDT          127.57           4464         0              Normal
  10/17/2026 07 PM PDT          127.57           4464         0              Normal
  10/17/2026 08 PM PDT          127.57           4464         0              Normal
  10/17/2026 09 PM PDT          127.57           4464         0              Normal
  10/17/2026 10 PM PDT          127.57           4464         0              Normal
  10/17/2026 11 PM PDT          127.57           4464         0              Normal
  10/18/2026 12 AM PDT          127.57           4464         0              Normal
  10/18/2026 01 AM PDT          127.57           4464         0              Normal
  10/18/2026 02 AM PDT          127.56           4442         -              Normal
  10/18/2026 03 AM PDT          127.56           4442         0              Normal
  10/18/2026 04 AM PDT          127.56           4442         0              Normal
  10/18/2026 05 AM PDT          127.56           4442         0              Normal
  10/18/2026 06 AM PDT          127.56           4442         0              Normal
  10/18/2026 07 AM PDT          127.55           4420         -              Normal
  10/18/2026 08 AM PDT          127.55           4420         0              Normal
  10/18/2026 09 AM PDT          127.56           4442         +              Normal
  10/18/2026 10 AM PDT          127.58           4486         +              Normal
  10/18/2026 11 AM PDT          127.58           4486         0              Normal
  10/18/2026 12 PM PDT          127.59           4509         +              Normal
  10/18/2026 01 PM PDT          127.59           4509         0              Normal
  10/18/2026 02 PM PDT          127.59           4509         0              Normal
  10/18/2026 03 PM PDT          127.59           4509         0              Normal
  10/18/2026 04 PM PDT          127.59           4509         0              Normal
  10/18/2026 05 PM PDT          127.59           4509         0              Normal
  10/18/2026 06 PM PDT          127.59           4509         0              Normal
  10/18/2026 07 PM PDT          127.58           4486         -              Normal
  10/18/2026 08 PM PDT          127.58           4486         0              Normal
  10/18/2026 09 PM PDT          127.57           4464         -              Normal
  10/18/2026 10 PM PDT          127.55           4420         -              Normal
  10/18/2026 11 PM PDT          127.55           4420         0              Normal
  10/19/2026 12 AM PDT          127.55           4420         0              Normal
  10/19/2026 01 AM PDT          127.56           4442         +              Normal
  10/19/2026 02 AM PDT          127.56           4442         0              Normal
  10/19/2026 03 AM PDT          127.56           4442         0              Normal
  10/19/2026 04 AM PDT          127.56           4442         0              Normal
  10/19/2026 05 AM PDT          127.56           4442         0              Normal
  10/19/2026 06 AM PDT          127.56           4442         0              Normal
  10/19/2026 07 AM PDT          127.56           4442         0              Normal
  10/19/2026 08 AM PDT          127.56           4442         0              Normal
  10/19/2026 09 AM PDT          127.56           4442         0              Normal
  10/19/2026 10 AM PDT          127.54           4398         -              Normal
  10/19/2026 11 AM PDT          127.55           4420         +              Normal
  10/19/2026 12 PM PDT          127.53           4376         -              Normal
  10/19/2026 01 PM PDT          127.56           4442         +              Normal
  10/19/2026 02 PM PDT          127.55           4420         -              Normal
  10/19/2026 03 PM PDT          127.56           4442         +              Normal
  10/19/2026 04 PM PDT          127.55           4420         -              Normal
  10/19/2026 05 PM PDT          127.57           4464         +              Normal
  10/19/2026 06 PM PDT          127.58           4486         +              Normal
  10/19/2026 07 PM PDT          127.57           4464         -              Normal
  10/19/2026 08 PM PDT          127.58           4486         +              Normal
  10/19/2026 09 PM PDT          127.58           4486         0              Normal
  10/19/2026 10 PM PDT          127.58           4486         0              Normal
  10/19/2026 11 PM PDT          127.58           4486         0              Normal
  10/20/2026 12 AM PDT          127.58           4486         0              Normal
  10/20/2026 01 AM PDT          127.57           4464         -              Normal
  10/20/2026 02 AM PDT          127.57           4464         0              Normal
  10/20/2026 03 AM PDT          127.57           4464         0              Normal
  10/20/2026 04 AM PDT          127.57           4464         0              Normal
  10/20/2026 05 AM PDT          127.57           4464         0              Normal
  10/20/2026 06 AM PDT          127.57           4464         0              Normal
  10/20/2026 07 AM PDT          127.57           4464         0              Normal
  10/20/2026 08 AM PDT          127.58           4486         +              Normal
  10/20/2026 09 AM PDT          127.58           4486         0              Normal
  10/20/2026 10 AM PDT          127.58           4486         0              Normal
  10/20/2026 11 AM PDT          127.58           4486         0              Normal
  10/20/2026 12 PM PDT          127.58           4486         0              Normal
  10/20/2026 01 PM PDT          127.59           4509         +              Normal
  10/20/2026 02 PM PDT          127.59           4509         0              Normal
  10/20/2026 03 PM PDT          127.59           4509         0              Normal
  10/20/2026 04 PM PDT          127.59           4509         0              Normal
  10/20/2026 05 PM PDT          127.59           4509         0              Normal
  10/20/2026 06 PM PDT          127.59           4509         0              Normal
  10/20/2026 07 PM PDT          127.59           4509         0              Normal
  10/20/2026 08 PM PDT          127.59           4509         0              Normal
  10/20/2026 09 PM PDT          127.59           4509         0              Normal
  10/20/2026 10 PM PDT          127.60           4531         +              Normal
  10/20/2026 11 PM PDT          127.59           4509         -              Normal
  10/21/2026 12 AM PDT          127.60           4531         +              Normal
  10/21/2026 01 AM PDT          127.60           4531         0              Normal
  10/21/2026 02 AM PDT          127.60           4531         0              Normal
  10/21/2026 03 AM PDT          127.61           4553         +              Normal
  10/21/2026 04 AM PDT          127.61           4553         0              Normal
  10/21/2026 05 AM PDT          127.61           4553         0              Normal
  10/21/2026 06 AM PDT          127.61           4553         0              Normal
  10/21/2026 07 AM PDT          127.61           4553         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/21/2026 08 AM PDT          127.62           4574                        Normal
  10/21/2026 09 AM PDT          127.62           4574         0              Normal
  10/21/2026 10 AM PDT          127.63           4596         +              Normal
  10/21/2026 11 AM PDT          127.63           4596         0              Normal
  10/21/2026 12 PM PDT          127.63           4596         0              Normal
  10/21/2026 01 PM PDT          127.64           4618         +              Normal
  10/21/2026 02 PM PDT          127.64           4618         0              Normal
  10/21/2026 03 PM PDT          127.64           4618         0              Normal
  10/21/2026 04 PM PDT          127.64           4618         0              Normal
  10/21/2026 05 PM PDT          127.64           4618         0              Normal
  10/21/2026 06 PM PDT          127.65           4640         +              Normal
  10/21/2026 07 PM PDT          127.65           4640         0              Normal
  10/21/2026 08 PM PDT          127.65           4640         0              Normal
  10/21/2026 09 PM PDT          127.65           4640         0              Normal
  10/21/2026 10 PM PDT          127.66           4662         +              Normal
  10/21/2026 11 PM PDT          127.66           4662         0              Normal
  10/22/2026 12 AM PDT          127.66           4662         0              Normal
  10/22/2026 01 AM PDT          127.66           4662         0              Normal
  10/22/2026 02 AM PDT          127.66           4662         0              Normal
  10/22/2026 03 AM PDT          127.67           4685         +              Normal
  10/22/2026 04 AM PDT          127.67           4685         0              Normal
  10/22/2026 05 AM PDT          127.67           4685         0              Normal
  10/22/2026 06 AM PDT          127.67           4685         0              Normal
  10/22/2026 07 AM PDT          127.68           4707         +              Normal
  10/22/2026 08 AM PDT          127.68           4707         0              Normal
  10/22/2026 09 AM PDT          127.69           4729         +              Normal
  10/22/2026 10 AM PDT          127.69           4729         0              Normal
  10/22/2026 11 AM PDT          127.69           4729         0              Normal
  10/22/2026 12 PM PDT          127.70           4752         +              Normal
  10/22/2026 01 PM PDT          127.70           4752         0              Normal
  10/22/2026 02 PM PDT          127.70           4752         0              Normal
  10/22/2026 03 PM PDT          127.71           4774         +              Normal
  10/22/2026 04 PM PDT          127.71           4774         0              Normal
  10/22/2026 05 PM PDT          127.71           4774         0              Normal
  10/22/2026 06 PM PDT          127.72           4795         +              Normal
  10/22/2026 07 PM PDT          127.72           4795         0              Normal
  10/22/2026 08 PM PDT          127.72           4795         0              Normal
  10/22/2026 09 PM PDT          127.72           4795         0              Normal
  10/22/2026 10 PM PDT          127.72           4795         0              Normal
  10/22/2026 11 PM PDT          127.73           4817         +              Normal
  10/23/2026 12 AM PDT          127.73           4817         0              Normal
  10/23/2026 01 AM PDT          127.74           4839         +              Normal
  10/23/2026 02 AM PDT          127.74           4839         0              Normal
  10/23/2026 03 AM PDT          127.75           4861         +              Normal
  10/23/2026 04 AM PDT          127.75           4861         0              Normal
  10/23/2026 05 AM PDT          127.76           4883         +              Normal
  10/23/2026 06 AM PDT          127.76           4883         0              Normal
  10/23/2026 07 AM PDT          127.77           4906         +              Normal
  10/23/2026 08 AM PDT          127.77           4906         0              Normal
  10/23/2026 09 AM PDT          127.78           4928         +              Normal
  10/23/2026 10 AM PDT          127.78           4928         0              Normal
  10/23/2026 11 AM PDT          127.78           4928         0              Normal
  10/23/2026 12 PM PDT          127.78           4928         0              Normal
  10/23/2026 01 PM PDT          127.78           4928         0              Normal
  10/23/2026 02 PM PDT          127.78           4928         0              Normal
  10/23/2026 03 PM PDT          127.78           4928         0              Normal
  10/23/2026 04 PM PDT          127.78           4928         0              Normal
  10/23/2026 05 PM PDT          127.77           4906         -              Normal
  10/23/2026 06 PM PDT          127.77           4906         0              Normal
  10/23/2026 07 PM PDT          127.76           4883         -              Normal
  10/23/2026 08 PM PDT          127.75           4861         -              Normal
  10/23/2026 09 PM PDT          127.75           4861         0              Normal
  10/23/2026 10 PM PDT          127.75           4861         0              Normal
  10/23/2026 11 PM PDT          127.74           4839         -              Normal
  10/24/2026 12 AM PDT          127.74           4839         0              Normal
  10/24/2026 01 AM PDT          127.74           4839         0              Normal
  10/24/2026 02 AM PDT          127.73           4817         -              Normal
  10/24/2026 03 AM PDT          127.73           4817         0              Normal
  10/24/2026 04 AM PDT          127.73           4817         0              Normal
  10/24/2026 05 AM PDT          127.72           4795         -              Normal
  10/24/2026 06 AM PDT          127.72           4795         0              Normal
  10/24/2026 07 AM PDT          127.72           4795         0              Normal
  10/24/2026 08 AM PDT          127.72           4795         0              Normal
  10/24/2026 09 AM PDT          127.71           4774         -              Normal
  10/24/2026 10 AM PDT          127.71           4774         0              Normal
  10/24/2026 11 AM PDT          127.71           4774         0              Normal
  10/24/2026 12 PM PDT          127.71           4774         0              Normal
  10/24/2026 01 PM PDT          127.70           4752         -              Normal
  10/24/2026 02 PM PDT          127.70           4752         0              Normal
  10/24/2026 03 PM PDT          127.70           4752         0              Normal
  10/24/2026 04 PM PDT          127.70           4752         0              Normal
  10/24/2026 05 PM PDT          127.70           4752         0              Normal
  10/24/2026 06 PM PDT          127.70           4752         0              Normal
  10/24/2026 07 PM PDT          127.70           4752         0              Normal
  10/24/2026 08 PM PDT          127.70           4752         0              Normal
  10/24/2026 09 PM PDT          127.70           4752         0              Normal
  10/24/2026 10 PM PDT          127.70           4752         0              Normal
  10/24/2026 11 PM PDT          127.70           4752         0              Normal
  10/25/2026 12 AM PDT          127.70           4752         0              Normal
  10/25/2026 01 AM PDT          127.70           4752         0              Normal
  10/25/2026 02 AM PDT          127.70           4752         0              Normal
  10/25/2026 03 AM PDT          127.70           4752         0              Normal
  10/25/2026 04 AM PDT          127.70           4752         0              Normal
  10/25/2026 05 AM PDT          127.70           4752         0              Normal
  10/25/2026 06 AM PDT          127.70           4752         0              Normal
  10/25/2026 07 AM PDT          127.70           4752         0              Normal
  10/25/2026 08 AM PDT          127.70           4752         0              Normal
  10/25/2026 09 AM PDT          127.70           4752         0              Normal
  10/25/2026 10 AM PDT          127.70           4752         0              Normal
  10/25/2026 11 AM PDT          127.70           4752         0              Normal
  10/25/2026 12 PM PDT          127.70           4752         0              Normal
  10/25/2026 01 PM PDT          127.70           4752         0              Normal
  10/25/2026 02 PM PDT          127.70           4752         0              Normal
  10/25/2026 03 PM PDT          127.70           4752         0              Normal
  10/25/2026 04 PM PDT          127.70           4752         0              Normal
  10/25/2026 05 PM PDT          127.70           4752         0              Normal
  10/25/2026 06 PM PDT          127.70           4752         0              Normal
  10/25/2026 07 PM PDT          127.70           4752         0              Normal
  10/25/2026 08 PM PDT          127.70           4752         0              Normal
  10/25/2026 09 PM PDT          127.70           4752         0              Normal
  10/25/2026 10 PM PDT          127.70           4752         0              Normal
  10/25/2026 11 PM PDT          127.70           4752         0              Normal
  10/26/2026 12 AM PDT          127.70           4752         0              Normal
  10/26/2026 01 AM PDT          127.71           4774         +              Normal
  10/26/2026 02 AM PDT          127.71           4774         0              Normal
  10/26/2026 03 AM PDT          127.71           4774         0              Normal
  10/26/2026 04 AM PDT          127.71           4774         0              Normal
  10/26/2026 05 AM PDT          127.71           4774         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.