SOUTH FORK TRINITY RIVER - HYAMPOM (HYMC1)
Latitude: 40.65º NLongitude: 123.49º WElevation: 1211 Feet
Location: Trinity County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Mar 23 2025 at 8:28 AM PDTNext Issuance: Mar 24 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: South Fork Trinity River - Hyampom (HYMC1)
#
# File Generation Time:  03/23/2025 at 08:29 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/18/2025 at 08:00 AM PDT
# Maximum Observed Stage:                       9.76 Feet
# Maximum Observed Flow:                        6395 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/27/2025 at 04:00 AM PDT
# Maximum Forecast Stage:                       8.13 Feet
# Maximum Forecast Flow:                        4019 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/18/2025 08 AM PDT            9.76           6395                Not Applicable
  03/18/2025 09 AM PDT            9.73           6350         -      Not Applicable
  03/18/2025 10 AM PDT            9.62           6184         -      Not Applicable
  03/18/2025 11 AM PDT            9.61           6169         -      Not Applicable
  03/18/2025 12 PM PDT            9.56           6095         -      Not Applicable
  03/18/2025 01 PM PDT            9.51           6021         -      Not Applicable
  03/18/2025 02 PM PDT            9.45           5932         -      Not Applicable
  03/18/2025 03 PM PDT            9.42           5888         -      Not Applicable
  03/18/2025 04 PM PDT            9.31           5729         -      Not Applicable
  03/18/2025 05 PM PDT            9.32           5743         +      Not Applicable
  03/18/2025 06 PM PDT            9.26           5656         -      Not Applicable
  03/18/2025 07 PM PDT            9.22           5597         -      Not Applicable
  03/18/2025 08 PM PDT            9.17           5524         -      Not Applicable
  03/18/2025 09 PM PDT            9.15           5495         -      Not Applicable
  03/18/2025 10 PM PDT            9.12           5452         -      Not Applicable
  03/18/2025 11 PM PDT            9.08           5394         -      Not Applicable
  03/19/2025 12 AM PDT            9.05           5351         -      Not Applicable
  03/19/2025 01 AM PDT            9.02           5309         -      Not Applicable
  03/19/2025 02 AM PDT            8.99           5265         -      Not Applicable
  03/19/2025 03 AM PDT            8.95           5204         -      Not Applicable
  03/19/2025 04 AM PDT            8.92           5159         -      Not Applicable
  03/19/2025 05 AM PDT            8.89           5114         -      Not Applicable
  03/19/2025 06 AM PDT            8.89           5114         0      Not Applicable
  03/19/2025 07 AM PDT            8.83           5024         -      Not Applicable
  03/19/2025 08 AM PDT            8.81           4995         -      Not Applicable
  03/19/2025 09 AM PDT            8.78           4949         -      Not Applicable
  03/19/2025 10 AM PDT            8.75           4904         -      Not Applicable
  03/19/2025 11 AM PDT            8.74           4888         -      Not Applicable
  03/19/2025 12 PM PDT            8.71           4843         -      Not Applicable
  03/19/2025 01 PM PDT            8.72           4858         +      Not Applicable
  03/19/2025 02 PM PDT            8.68           4799         -      Not Applicable
  03/19/2025 03 PM PDT            8.62           4710         -      Not Applicable
  03/19/2025 04 PM PDT            8.59           4666         -      Not Applicable
  03/19/2025 05 PM PDT            8.60           4680         +      Not Applicable
  03/19/2025 06 PM PDT            8.61           4695         +      Not Applicable
  03/19/2025 07 PM PDT            8.63           4724         +      Not Applicable
  03/19/2025 08 PM PDT            8.64           4739         +      Not Applicable
  03/19/2025 09 PM PDT            8.61           4695         -      Not Applicable
  03/19/2025 10 PM PDT            8.63           4724         +      Not Applicable
  03/19/2025 11 PM PDT            8.64           4739         +      Not Applicable
  03/20/2025 12 AM PDT            8.62           4710         -      Not Applicable
  03/20/2025 01 AM PDT            8.66           4769         +      Not Applicable
  03/20/2025 02 AM PDT            8.61           4695         -      Not Applicable
  03/20/2025 03 AM PDT            8.61           4695         0      Not Applicable
  03/20/2025 04 AM PDT            8.59           4666         -      Not Applicable
  03/20/2025 05 AM PDT            8.57           4636         -      Not Applicable
  03/20/2025 06 AM PDT            8.56           4622         -      Not Applicable
  03/20/2025 07 AM PDT            8.53           4578         -      Not Applicable
  03/20/2025 08 AM PDT            8.50           4535         -      Not Applicable
  03/20/2025 09 AM PDT            8.47           4492         -      Not Applicable
  03/20/2025 10 AM PDT            8.43           4434         -      Not Applicable
  03/20/2025 11 AM PDT            8.41           4406         -      Not Applicable
  03/20/2025 12 PM PDT            8.38           4364         -      Not Applicable
  03/20/2025 01 PM PDT            8.34           4307         -      Not Applicable
  03/20/2025 02 PM PDT            8.32           4279         -      Not Applicable
  03/20/2025 03 PM PDT            8.31           4265         -      Not Applicable
  03/20/2025 04 PM PDT            8.30           4252         -      Not Applicable
  03/20/2025 05 PM PDT            8.28           4224         -      Not Applicable
  03/20/2025 06 PM PDT            8.26           4196         -      Not Applicable
  03/20/2025 07 PM PDT            8.24           4169         -      Not Applicable
  03/20/2025 08 PM PDT            8.23           4155         -      Not Applicable
  03/20/2025 09 PM PDT            8.22           4141         -      Not Applicable
  03/20/2025 10 PM PDT            8.22           4141         0      Not Applicable
  03/20/2025 11 PM PDT            8.20           4114         -      Not Applicable
  03/21/2025 12 AM PDT            8.18           4087         -      Not Applicable
  03/21/2025 01 AM PDT            8.17           4073         -      Not Applicable
  03/21/2025 02 AM PDT            8.13           4019         -      Not Applicable
  03/21/2025 03 AM PDT            8.15           4046         +      Not Applicable
  03/21/2025 04 AM PDT            8.13           4019         -      Not Applicable
  03/21/2025 05 AM PDT            8.12           4006         -      Not Applicable
  03/21/2025 06 AM PDT            8.10           3979         -      Not Applicable
  03/21/2025 07 AM PDT            8.09           3966         -      Not Applicable
  03/21/2025 08 AM PDT            8.08           3952         -      Not Applicable
  03/21/2025 09 AM PDT            8.05           3912         -      Not Applicable
  03/21/2025 10 AM PDT            8.04           3899         -      Not Applicable
  03/21/2025 11 AM PDT            8.02           3873         -      Not Applicable
  03/21/2025 12 PM PDT            8.02           3873         0      Not Applicable
  03/21/2025 01 PM PDT            8.01           3860         -      Not Applicable
  03/21/2025 02 PM PDT            8.02           3873         +      Not Applicable
  03/21/2025 03 PM PDT            8.00           3846         -      Not Applicable
  03/21/2025 04 PM PDT            8.01           3860         +      Not Applicable
  03/21/2025 05 PM PDT            8.01           3860         0      Not Applicable
  03/21/2025 06 PM PDT            8.02           3873         +      Not Applicable
  03/21/2025 07 PM PDT            8.02           3873         0      Not Applicable
  03/21/2025 08 PM PDT            8.03           3886         +      Not Applicable
  03/21/2025 09 PM PDT            8.02           3873         -      Not Applicable
  03/21/2025 10 PM PDT            8.03           3886         +      Not Applicable
  03/21/2025 11 PM PDT            8.01           3860         -      Not Applicable
  03/22/2025 12 AM PDT            8.01           3860         0      Not Applicable
  03/22/2025 01 AM PDT            8.01           3860         0      Not Applicable
  03/22/2025 02 AM PDT            8.00           3846         -      Not Applicable
  03/22/2025 03 AM PDT            7.99           3833         -      Not Applicable
  03/22/2025 04 AM PDT            8.00           3846         +      Not Applicable
  03/22/2025 05 AM PDT            8.00           3846         0      Not Applicable
  03/22/2025 06 AM PDT            8.00           3846         0      Not Applicable
  03/22/2025 07 AM PDT            7.99           3833         -      Not Applicable
  03/22/2025 08 AM PDT            7.99           3833         0      Not Applicable
  03/22/2025 09 AM PDT            7.97           3807         -      Not Applicable
  03/22/2025 10 AM PDT            7.99           3833         +      Not Applicable
  03/22/2025 11 AM PDT            7.96           3794         -      Not Applicable
  03/22/2025 12 PM PDT            7.96           3794         0      Not Applicable
  03/22/2025 01 PM PDT            7.96           3794         0      Not Applicable
  03/22/2025 02 PM PDT            7.98           3820         +      Not Applicable
  03/22/2025 03 PM PDT            7.96           3794         -      Not Applicable
  03/22/2025 04 PM PDT            7.96           3794         0      Not Applicable
  03/22/2025 05 PM PDT            7.95           3781         -      Not Applicable
  03/22/2025 06 PM PDT            7.94           3768         -      Not Applicable
  03/22/2025 07 PM PDT            7.95           3781         +      Not Applicable
  03/22/2025 08 PM PDT            7.94           3768         -      Not Applicable
  03/22/2025 09 PM PDT            7.95           3781         +      Not Applicable
  03/22/2025 10 PM PDT            7.93           3755         -      Not Applicable
  03/22/2025 11 PM PDT            7.93           3755         0      Not Applicable
  03/23/2025 12 AM PDT            7.92           3742         -      Not Applicable
  03/23/2025 01 AM PDT            7.93           3755         +      Not Applicable
  03/23/2025 02 AM PDT            7.92           3742         -      Not Applicable
  03/23/2025 03 AM PDT            7.92           3742         0      Not Applicable
  03/23/2025 04 AM PDT            7.92           3742         0      Not Applicable
  03/23/2025 05 AM PDT            7.93           3755         +      Not Applicable
  03/23/2025 06 AM PDT            7.94           3768         +      Not Applicable
  03/23/2025 07 AM PDT            7.93           3755         -      Not Applicable
  03/23/2025 08 AM PDT            7.92           3742         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/23/2025 09 AM PDT            7.91           3729                Not Applicable
  03/23/2025 10 AM PDT            7.89           3704         -      Not Applicable
  03/23/2025 11 AM PDT            7.88           3691         -      Not Applicable
  03/23/2025 12 PM PDT            7.87           3678         -      Not Applicable
  03/23/2025 01 PM PDT            7.86           3665         -      Not Applicable
  03/23/2025 02 PM PDT            7.85           3653         -      Not Applicable
  03/23/2025 03 PM PDT            7.84           3640         -      Not Applicable
  03/23/2025 04 PM PDT            7.83           3627         -      Not Applicable
  03/23/2025 05 PM PDT            7.83           3627         0      Not Applicable
  03/23/2025 06 PM PDT            7.83           3627         0      Not Applicable
  03/23/2025 07 PM PDT            7.83           3627         0      Not Applicable
  03/23/2025 08 PM PDT            7.83           3627         0      Not Applicable
  03/23/2025 09 PM PDT            7.83           3627         0      Not Applicable
  03/23/2025 10 PM PDT            7.84           3640         +      Not Applicable
  03/23/2025 11 PM PDT            7.84           3640         0      Not Applicable
  03/24/2025 12 AM PDT            7.85           3653         +      Not Applicable
  03/24/2025 01 AM PDT            7.85           3653         0      Not Applicable
  03/24/2025 02 AM PDT            7.85           3653         0      Not Applicable
  03/24/2025 03 AM PDT            7.84           3640         -      Not Applicable
  03/24/2025 04 AM PDT            7.84           3640         0      Not Applicable
  03/24/2025 05 AM PDT            7.83           3627         -      Not Applicable
  03/24/2025 06 AM PDT            7.83           3627         0      Not Applicable
  03/24/2025 07 AM PDT            7.82           3615         -      Not Applicable
  03/24/2025 08 AM PDT            7.81           3602         -      Not Applicable
  03/24/2025 09 AM PDT            7.81           3602         0      Not Applicable
  03/24/2025 10 AM PDT            7.80           3589         -      Not Applicable
  03/24/2025 11 AM PDT            7.79           3577         -      Not Applicable
  03/24/2025 12 PM PDT            7.79           3577         0      Not Applicable
  03/24/2025 01 PM PDT            7.79           3577         0      Not Applicable
  03/24/2025 02 PM PDT            7.78           3564         -      Not Applicable
  03/24/2025 03 PM PDT            7.78           3564         0      Not Applicable
  03/24/2025 04 PM PDT            7.78           3564         0      Not Applicable
  03/24/2025 05 PM PDT            7.78           3564         0      Not Applicable
  03/24/2025 06 PM PDT            7.78           3564         0      Not Applicable
  03/24/2025 07 PM PDT            7.78           3564         0      Not Applicable
  03/24/2025 08 PM PDT            7.78           3564         0      Not Applicable
  03/24/2025 09 PM PDT            7.79           3577         +      Not Applicable
  03/24/2025 10 PM PDT            7.79           3577         0      Not Applicable
  03/24/2025 11 PM PDT            7.80           3589         +      Not Applicable
  03/25/2025 12 AM PDT            7.80           3589         0      Not Applicable
  03/25/2025 01 AM PDT            7.80           3589         0      Not Applicable
  03/25/2025 02 AM PDT            7.80           3589         0      Not Applicable
  03/25/2025 03 AM PDT            7.81           3602         +      Not Applicable
  03/25/2025 04 AM PDT            7.80           3589         -      Not Applicable
  03/25/2025 05 AM PDT            7.80           3589         0      Not Applicable
  03/25/2025 06 AM PDT            7.80           3589         0      Not Applicable
  03/25/2025 07 AM PDT            7.80           3589         0      Not Applicable
  03/25/2025 08 AM PDT            7.79           3577         -      Not Applicable
  03/25/2025 09 AM PDT            7.79           3577         0      Not Applicable
  03/25/2025 10 AM PDT            7.79           3577         0      Not Applicable
  03/25/2025 11 AM PDT            7.78           3564         -      Not Applicable
  03/25/2025 12 PM PDT            7.78           3564         0      Not Applicable
  03/25/2025 01 PM PDT            7.77           3552         -      Not Applicable
  03/25/2025 02 PM PDT            7.77           3552         0      Not Applicable
  03/25/2025 03 PM PDT            7.77           3552         0      Not Applicable
  03/25/2025 04 PM PDT            7.77           3552         0      Not Applicable
  03/25/2025 05 PM PDT            7.78           3564         +      Not Applicable
  03/25/2025 06 PM PDT            7.78           3564         0      Not Applicable
  03/25/2025 07 PM PDT            7.79           3577         +      Not Applicable
  03/25/2025 08 PM PDT            7.80           3589         +      Not Applicable
  03/25/2025 09 PM PDT            7.81           3602         +      Not Applicable
  03/25/2025 10 PM PDT            7.83           3627         +      Not Applicable
  03/25/2025 11 PM PDT            7.85           3653         +      Not Applicable
  03/26/2025 12 AM PDT            7.88           3691         +      Not Applicable
  03/26/2025 01 AM PDT            7.90           3717         +      Not Applicable
  03/26/2025 02 AM PDT            7.92           3742         +      Not Applicable
  03/26/2025 03 AM PDT            7.94           3768         +      Not Applicable
  03/26/2025 04 AM PDT            7.96           3794         +      Not Applicable
  03/26/2025 05 AM PDT            7.98           3820         +      Not Applicable
  03/26/2025 06 AM PDT            7.98           3820         0      Not Applicable
  03/26/2025 07 AM PDT            7.98           3820         0      Not Applicable
  03/26/2025 08 AM PDT            7.97           3807         -      Not Applicable
  03/26/2025 09 AM PDT            7.96           3794         -      Not Applicable
  03/26/2025 10 AM PDT            7.94           3768         -      Not Applicable
  03/26/2025 11 AM PDT            7.91           3729         -      Not Applicable
  03/26/2025 12 PM PDT            7.89           3704         -      Not Applicable
  03/26/2025 01 PM PDT            7.87           3678         -      Not Applicable
  03/26/2025 02 PM PDT            7.85           3653         -      Not Applicable
  03/26/2025 03 PM PDT            7.84           3640         -      Not Applicable
  03/26/2025 04 PM PDT            7.83           3627         -      Not Applicable
  03/26/2025 05 PM PDT            7.83           3627         0      Not Applicable
  03/26/2025 06 PM PDT            7.84           3640         +      Not Applicable
  03/26/2025 07 PM PDT            7.86           3665         +      Not Applicable
  03/26/2025 08 PM PDT            7.89           3704         +      Not Applicable
  03/26/2025 09 PM PDT            7.92           3742         +      Not Applicable
  03/26/2025 10 PM PDT            7.97           3807         +      Not Applicable
  03/26/2025 11 PM PDT            8.01           3860         +      Not Applicable
  03/27/2025 12 AM PDT            8.05           3912         +      Not Applicable
  03/27/2025 01 AM PDT            8.08           3952         +      Not Applicable
  03/27/2025 02 AM PDT            8.10           3979         +      Not Applicable
  03/27/2025 03 AM PDT            8.12           4006         +      Not Applicable
  03/27/2025 04 AM PDT            8.13           4019         +      Not Applicable
  03/27/2025 05 AM PDT            8.13           4019         0      Not Applicable
  03/27/2025 06 AM PDT            8.12           4006         -      Not Applicable
  03/27/2025 07 AM PDT            8.11           3992         -      Not Applicable
  03/27/2025 08 AM PDT            8.09           3966         -      Not Applicable
  03/27/2025 09 AM PDT            8.06           3926         -      Not Applicable
  03/27/2025 10 AM PDT            8.03           3886         -      Not Applicable
  03/27/2025 11 AM PDT            7.99           3833         -      Not Applicable
  03/27/2025 12 PM PDT            7.97           3807         -      Not Applicable
  03/27/2025 01 PM PDT            7.95           3781         -      Not Applicable
  03/27/2025 02 PM PDT            7.93           3755         -      Not Applicable
  03/27/2025 03 PM PDT            7.92           3742         -      Not Applicable
  03/27/2025 04 PM PDT            7.92           3742         0      Not Applicable
  03/27/2025 05 PM PDT            7.92           3742         0      Not Applicable
  03/27/2025 06 PM PDT            7.91           3729         -      Not Applicable
  03/27/2025 07 PM PDT            7.91           3729         0      Not Applicable
  03/27/2025 08 PM PDT            7.91           3729         0      Not Applicable
  03/27/2025 09 PM PDT            7.90           3717         -      Not Applicable
  03/27/2025 10 PM PDT            7.90           3717         0      Not Applicable
  03/27/2025 11 PM PDT            7.89           3704         -      Not Applicable
  03/28/2025 12 AM PDT            7.88           3691         -      Not Applicable
  03/28/2025 01 AM PDT            7.88           3691         0      Not Applicable
  03/28/2025 02 AM PDT            7.86           3665         -      Not Applicable
  03/28/2025 03 AM PDT            7.85           3653         -      Not Applicable
  03/28/2025 04 AM PDT            7.83           3627         -      Not Applicable
  03/28/2025 05 AM PDT            7.81           3602         -      Not Applicable
#
# 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.