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: Jul 12 2025 at 7:52 AM PDTNext Issuance: Jul 13 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:  07/12/2025 at 07:54 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/07/2025 at 10:00 AM PDT
# Maximum Observed Stage:                       2.87 Feet
# Maximum Observed Flow:                        211 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/12/2025 at 08:00 AM PDT
# Maximum Forecast Stage:                       2.74 Feet
# Maximum Forecast Flow:                        182 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/07/2025 07 AM PDT            2.85            206                Not Applicable
  07/07/2025 08 AM PDT            2.86            209         +      Not Applicable
  07/07/2025 09 AM PDT            2.86            209         0      Not Applicable
  07/07/2025 10 AM PDT            2.87            211         +      Not Applicable
  07/07/2025 11 AM PDT            2.86            209         -      Not Applicable
  07/07/2025 12 PM PDT            2.86            209         0      Not Applicable
  07/07/2025 01 PM PDT            2.85            206         -      Not Applicable
  07/07/2025 02 PM PDT            2.86            209         +      Not Applicable
  07/07/2025 03 PM PDT            2.86            209         0      Not Applicable
  07/07/2025 04 PM PDT            2.85            206         -      Not Applicable
  07/07/2025 05 PM PDT            2.85            206         0      Not Applicable
  07/07/2025 06 PM PDT            2.85            206         0      Not Applicable
  07/07/2025 07 PM PDT            2.85            206         0      Not Applicable
  07/07/2025 08 PM PDT            2.84            204         -      Not Applicable
  07/07/2025 09 PM PDT            2.83            202         -      Not Applicable
  07/07/2025 10 PM PDT            2.84            204         +      Not Applicable
  07/07/2025 11 PM PDT            2.83            202         -      Not Applicable
  07/08/2025 12 AM PDT            2.83            202         0      Not Applicable
  07/08/2025 01 AM PDT            2.83            202         0      Not Applicable
  07/08/2025 02 AM PDT            2.83            202         0      Not Applicable
  07/08/2025 03 AM PDT            2.83            202         0      Not Applicable
  07/08/2025 04 AM PDT            2.82            200         -      Not Applicable
  07/08/2025 05 AM PDT            2.82            200         0      Not Applicable
  07/08/2025 06 AM PDT            2.82            200         0      Not Applicable
  07/08/2025 07 AM PDT            2.82            200         0      Not Applicable
  07/08/2025 08 AM PDT            2.82            200         0      Not Applicable
  07/08/2025 09 AM PDT            2.82            200         0      Not Applicable
  07/08/2025 10 AM PDT            2.82            200         0      Not Applicable
  07/08/2025 11 AM PDT            2.83            202         +      Not Applicable
  07/08/2025 12 PM PDT            2.82            200         -      Not Applicable
  07/08/2025 01 PM PDT            2.82            200         0      Not Applicable
  07/08/2025 02 PM PDT            2.82            200         0      Not Applicable
  07/08/2025 03 PM PDT            2.82            200         0      Not Applicable
  07/08/2025 04 PM PDT            2.81            197         -      Not Applicable
  07/08/2025 05 PM PDT            2.82            200         +      Not Applicable
  07/08/2025 06 PM PDT            2.81            197         -      Not Applicable
  07/08/2025 07 PM PDT            2.80            195         -      Not Applicable
  07/08/2025 08 PM PDT            2.80            195         0      Not Applicable
  07/08/2025 09 PM PDT            2.80            195         0      Not Applicable
  07/08/2025 10 PM PDT            2.79            193         -      Not Applicable
  07/08/2025 11 PM PDT            2.80            195         +      Not Applicable
  07/09/2025 12 AM PDT            2.79            193         -      Not Applicable
  07/09/2025 01 AM PDT            2.79            193         0      Not Applicable
  07/09/2025 02 AM PDT            2.79            193         0      Not Applicable
  07/09/2025 03 AM PDT            2.79            193         0      Not Applicable
  07/09/2025 04 AM PDT            2.79            193         0      Not Applicable
  07/09/2025 05 AM PDT            2.79            193         0      Not Applicable
  07/09/2025 06 AM PDT            2.79            193         0      Not Applicable
  07/09/2025 07 AM PDT            2.79            193         0      Not Applicable
  07/09/2025 08 AM PDT            2.79            193         0      Not Applicable
  07/09/2025 09 AM PDT            2.79            193         0      Not Applicable
  07/09/2025 10 AM PDT            2.80            195         +      Not Applicable
  07/09/2025 11 AM PDT            2.79            193         -      Not Applicable
  07/09/2025 12 PM PDT            2.80            195         +      Not Applicable
  07/09/2025 01 PM PDT            2.80            195         0      Not Applicable
  07/09/2025 02 PM PDT            2.79            193         -      Not Applicable
  07/09/2025 03 PM PDT            2.79            193         0      Not Applicable
  07/09/2025 04 PM PDT            2.79            193         0      Not Applicable
  07/09/2025 05 PM PDT            2.78            191         -      Not Applicable
  07/09/2025 06 PM PDT            2.78            191         0      Not Applicable
  07/09/2025 07 PM PDT            2.78            191         0      Not Applicable
  07/09/2025 08 PM PDT            2.78            191         0      Not Applicable
  07/09/2025 09 PM PDT            2.77            189         -      Not Applicable
  07/09/2025 10 PM PDT            2.77            189         0      Not Applicable
  07/09/2025 11 PM PDT            2.77            189         0      Not Applicable
  07/10/2025 12 AM PDT            2.77            189         0      Not Applicable
  07/10/2025 01 AM PDT            2.77            189         0      Not Applicable
  07/10/2025 02 AM PDT            2.77            189         0      Not Applicable
  07/10/2025 03 AM PDT            2.76            186         -      Not Applicable
  07/10/2025 04 AM PDT            2.76            186         0      Not Applicable
  07/10/2025 05 AM PDT            2.77            189         +      Not Applicable
  07/10/2025 06 AM PDT            2.76            186         -      Not Applicable
  07/10/2025 07 AM PDT            2.76            186         0      Not Applicable
  07/10/2025 08 AM PDT            2.76            186         0      Not Applicable
  07/10/2025 09 AM PDT            2.76            186         0      Not Applicable
  07/10/2025 10 AM PDT            2.77            189         +      Not Applicable
  07/10/2025 11 AM PDT            2.77            189         0      Not Applicable
  07/10/2025 12 PM PDT            2.78            191         +      Not Applicable
  07/10/2025 01 PM PDT            2.78            191         0      Not Applicable
  07/10/2025 02 PM PDT            2.77            189         -      Not Applicable
  07/10/2025 03 PM PDT            2.77            189         0      Not Applicable
  07/10/2025 04 PM PDT            2.77            189         0      Not Applicable
  07/10/2025 05 PM PDT            2.76            186         -      Not Applicable
  07/10/2025 06 PM PDT            2.77            189         +      Not Applicable
  07/10/2025 07 PM PDT            2.77            189         0      Not Applicable
  07/10/2025 08 PM PDT            2.77            189         0      Not Applicable
  07/10/2025 09 PM PDT            2.76            186         -      Not Applicable
  07/10/2025 10 PM PDT            2.76            186         0      Not Applicable
  07/10/2025 11 PM PDT            2.75            184         -      Not Applicable
  07/11/2025 12 AM PDT            2.76            186         +      Not Applicable
  07/11/2025 01 AM PDT            2.75            184         -      Not Applicable
  07/11/2025 02 AM PDT            2.75            184         0      Not Applicable
  07/11/2025 03 AM PDT            2.75            184         0      Not Applicable
  07/11/2025 04 AM PDT            2.75            184         0      Not Applicable
  07/11/2025 05 AM PDT            2.75            184         0      Not Applicable
  07/11/2025 06 AM PDT            2.75            184         0      Not Applicable
  07/11/2025 07 AM PDT            2.76            186         +      Not Applicable
  07/11/2025 08 AM PDT            2.76            186         0      Not Applicable
  07/11/2025 09 AM PDT            2.76            186         0      Not Applicable
  07/11/2025 10 AM PDT            2.76            186         0      Not Applicable
  07/11/2025 11 AM PDT            2.77            189         +      Not Applicable
  07/11/2025 12 PM PDT            2.76            186         -      Not Applicable
  07/11/2025 01 PM PDT            2.77            189         +      Not Applicable
  07/11/2025 02 PM PDT            2.76            186         -      Not Applicable
  07/11/2025 03 PM PDT            2.77            189         +      Not Applicable
  07/11/2025 04 PM PDT            2.76            186         -      Not Applicable
  07/11/2025 05 PM PDT            2.76            186         0      Not Applicable
  07/11/2025 06 PM PDT            2.76            186         0      Not Applicable
  07/11/2025 07 PM PDT            2.76            186         0      Not Applicable
  07/11/2025 08 PM PDT            2.75            184         -      Not Applicable
  07/11/2025 09 PM PDT            2.74            182         -      Not Applicable
  07/11/2025 10 PM PDT            2.75            184         +      Not Applicable
  07/11/2025 11 PM PDT            2.74            182         -      Not Applicable
  07/12/2025 12 AM PDT            2.74            182         0      Not Applicable
  07/12/2025 01 AM PDT            2.74            182         0      Not Applicable
  07/12/2025 02 AM PDT            2.74            182         0      Not Applicable
  07/12/2025 03 AM PDT            2.73            180         -      Not Applicable
  07/12/2025 04 AM PDT            2.73            180         0      Not Applicable
  07/12/2025 05 AM PDT            2.74            182         +      Not Applicable
  07/12/2025 06 AM PDT            2.74            182         0      Not Applicable
  07/12/2025 07 AM PDT            2.74            182         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/12/2025 08 AM PDT            2.74            182                Not Applicable
  07/12/2025 09 AM PDT            2.74            182         0      Not Applicable
  07/12/2025 10 AM PDT            2.73            180         -      Not Applicable
  07/12/2025 11 AM PDT            2.73            180         0      Not Applicable
  07/12/2025 12 PM PDT            2.73            180         0      Not Applicable
  07/12/2025 01 PM PDT            2.73            180         0      Not Applicable
  07/12/2025 02 PM PDT            2.73            180         0      Not Applicable
  07/12/2025 03 PM PDT            2.73            180         0      Not Applicable
  07/12/2025 04 PM PDT            2.73            180         0      Not Applicable
  07/12/2025 05 PM PDT            2.72            178         -      Not Applicable
  07/12/2025 06 PM PDT            2.72            178         0      Not Applicable
  07/12/2025 07 PM PDT            2.72            178         0      Not Applicable
  07/12/2025 08 PM PDT            2.72            178         0      Not Applicable
  07/12/2025 09 PM PDT            2.72            178         0      Not Applicable
  07/12/2025 10 PM PDT            2.71            176         -      Not Applicable
  07/12/2025 11 PM PDT            2.71            176         0      Not Applicable
  07/13/2025 12 AM PDT            2.71            176         0      Not Applicable
  07/13/2025 01 AM PDT            2.71            176         0      Not Applicable
  07/13/2025 02 AM PDT            2.71            176         0      Not Applicable
  07/13/2025 03 AM PDT            2.71            176         0      Not Applicable
  07/13/2025 04 AM PDT            2.71            176         0      Not Applicable
  07/13/2025 05 AM PDT            2.70            174         -      Not Applicable
  07/13/2025 06 AM PDT            2.70            174         0      Not Applicable
  07/13/2025 07 AM PDT            2.70            174         0      Not Applicable
  07/13/2025 08 AM PDT            2.70            174         0      Not Applicable
  07/13/2025 09 AM PDT            2.70            174         0      Not Applicable
  07/13/2025 10 AM PDT            2.70            174         0      Not Applicable
  07/13/2025 11 AM PDT            2.70            174         0      Not Applicable
  07/13/2025 12 PM PDT            2.69            172         -      Not Applicable
  07/13/2025 01 PM PDT            2.69            172         0      Not Applicable
  07/13/2025 02 PM PDT            2.69            172         0      Not Applicable
  07/13/2025 03 PM PDT            2.69            172         0      Not Applicable
  07/13/2025 04 PM PDT            2.69            172         0      Not Applicable
  07/13/2025 05 PM PDT            2.69            172         0      Not Applicable
  07/13/2025 06 PM PDT            2.69            172         0      Not Applicable
  07/13/2025 07 PM PDT            2.68            170         -      Not Applicable
  07/13/2025 08 PM PDT            2.68            170         0      Not Applicable
  07/13/2025 09 PM PDT            2.68            170         0      Not Applicable
  07/13/2025 10 PM PDT            2.68            170         0      Not Applicable
  07/13/2025 11 PM PDT            2.68            170         0      Not Applicable
  07/14/2025 12 AM PDT            2.67            168         -      Not Applicable
  07/14/2025 01 AM PDT            2.67            168         0      Not Applicable
  07/14/2025 02 AM PDT            2.67            168         0      Not Applicable
  07/14/2025 03 AM PDT            2.67            168         0      Not Applicable
  07/14/2025 04 AM PDT            2.67            168         0      Not Applicable
  07/14/2025 05 AM PDT            2.67            168         0      Not Applicable
  07/14/2025 06 AM PDT            2.67            168         0      Not Applicable
  07/14/2025 07 AM PDT            2.66            166         -      Not Applicable
  07/14/2025 08 AM PDT            2.66            166         0      Not Applicable
  07/14/2025 09 AM PDT            2.66            166         0      Not Applicable
  07/14/2025 10 AM PDT            2.66            166         0      Not Applicable
  07/14/2025 11 AM PDT            2.66            166         0      Not Applicable
  07/14/2025 12 PM PDT            2.66            166         0      Not Applicable
  07/14/2025 01 PM PDT            2.65            164         -      Not Applicable
  07/14/2025 02 PM PDT            2.65            164         0      Not Applicable
  07/14/2025 03 PM PDT            2.65            164         0      Not Applicable
  07/14/2025 04 PM PDT            2.65            164         0      Not Applicable
  07/14/2025 05 PM PDT            2.65            164         0      Not Applicable
  07/14/2025 06 PM PDT            2.65            164         0      Not Applicable
  07/14/2025 07 PM PDT            2.64            162         -      Not Applicable
  07/14/2025 08 PM PDT            2.64            162         0      Not Applicable
  07/14/2025 09 PM PDT            2.64            162         0      Not Applicable
  07/14/2025 10 PM PDT            2.64            162         0      Not Applicable
  07/14/2025 11 PM PDT            2.64            162         0      Not Applicable
  07/15/2025 12 AM PDT            2.63            160         -      Not Applicable
  07/15/2025 01 AM PDT            2.63            160         0      Not Applicable
  07/15/2025 02 AM PDT            2.63            160         0      Not Applicable
  07/15/2025 03 AM PDT            2.63            160         0      Not Applicable
  07/15/2025 04 AM PDT            2.63            160         0      Not Applicable
  07/15/2025 05 AM PDT            2.63            160         0      Not Applicable
  07/15/2025 06 AM PDT            2.63            160         0      Not Applicable
  07/15/2025 07 AM PDT            2.62            158         -      Not Applicable
  07/15/2025 08 AM PDT            2.62            158         0      Not Applicable
  07/15/2025 09 AM PDT            2.62            158         0      Not Applicable
  07/15/2025 10 AM PDT            2.62            158         0      Not Applicable
  07/15/2025 11 AM PDT            2.62            158         0      Not Applicable
  07/15/2025 12 PM PDT            2.62            158         0      Not Applicable
  07/15/2025 01 PM PDT            2.62            158         0      Not Applicable
  07/15/2025 02 PM PDT            2.62            158         0      Not Applicable
  07/15/2025 03 PM PDT            2.61            156         -      Not Applicable
  07/15/2025 04 PM PDT            2.61            156         0      Not Applicable
  07/15/2025 05 PM PDT            2.61            156         0      Not Applicable
  07/15/2025 06 PM PDT            2.61            156         0      Not Applicable
  07/15/2025 07 PM PDT            2.60            154         -      Not Applicable
  07/15/2025 08 PM PDT            2.60            154         0      Not Applicable
  07/15/2025 09 PM PDT            2.60            154         0      Not Applicable
  07/15/2025 10 PM PDT            2.60            154         0      Not Applicable
  07/15/2025 11 PM PDT            2.60            154         0      Not Applicable
  07/16/2025 12 AM PDT            2.60            154         0      Not Applicable
  07/16/2025 01 AM PDT            2.59            152         -      Not Applicable
  07/16/2025 02 AM PDT            2.59            152         0      Not Applicable
  07/16/2025 03 AM PDT            2.59            152         0      Not Applicable
  07/16/2025 04 AM PDT            2.59            152         0      Not Applicable
  07/16/2025 05 AM PDT            2.59            152         0      Not Applicable
  07/16/2025 06 AM PDT            2.59            152         0      Not Applicable
  07/16/2025 07 AM PDT            2.58            150         -      Not Applicable
  07/16/2025 08 AM PDT            2.58            150         0      Not Applicable
  07/16/2025 09 AM PDT            2.58            150         0      Not Applicable
  07/16/2025 10 AM PDT            2.58            150         0      Not Applicable
  07/16/2025 11 AM PDT            2.58            150         0      Not Applicable
  07/16/2025 12 PM PDT            2.58            150         0      Not Applicable
  07/16/2025 01 PM PDT            2.58            150         0      Not Applicable
  07/16/2025 02 PM PDT            2.58            150         0      Not Applicable
  07/16/2025 03 PM PDT            2.57            148         -      Not Applicable
  07/16/2025 04 PM PDT            2.57            148         0      Not Applicable
  07/16/2025 05 PM PDT            2.57            148         0      Not Applicable
  07/16/2025 06 PM PDT            2.57            148         0      Not Applicable
  07/16/2025 07 PM PDT            2.56            147         -      Not Applicable
  07/16/2025 08 PM PDT            2.56            147         0      Not Applicable
  07/16/2025 09 PM PDT            2.56            147         0      Not Applicable
  07/16/2025 10 PM PDT            2.56            147         0      Not Applicable
  07/16/2025 11 PM PDT            2.56            147         0      Not Applicable
  07/17/2025 12 AM PDT            2.56            147         0      Not Applicable
  07/17/2025 01 AM PDT            2.55            145         -      Not Applicable
  07/17/2025 02 AM PDT            2.55            145         0      Not Applicable
  07/17/2025 03 AM PDT            2.55            145         0      Not Applicable
  07/17/2025 04 AM PDT            2.55            145         0      Not Applicable
  07/17/2025 05 AM PDT            2.55            145         0      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.