National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

 | 

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: Jun 25 2025 at 7:04 AM PDTNext Issuance: Jun 26 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:  06/25/2025 at 07:07 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/22/2025 at 06:00 PM PDT
# Maximum Observed Stage:                       3.23 Feet
# Maximum Observed Flow:                        286 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/25/2025 at 08:00 AM PDT
# Maximum Forecast Stage:                       3.14 Feet
# Maximum Forecast Flow:                        262 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/20/2025 07 AM PDT            3.19            275                Not Applicable
  06/20/2025 08 AM PDT            3.20            278         +      Not Applicable
  06/20/2025 09 AM PDT            3.21            281         +      Not Applicable
  06/20/2025 10 AM PDT            3.21            281         0      Not Applicable
  06/20/2025 11 AM PDT            3.21            281         0      Not Applicable
  06/20/2025 12 PM PDT            3.21            281         0      Not Applicable
  06/20/2025 01 PM PDT            3.21            281         0      Not Applicable
  06/20/2025 02 PM PDT            3.21            281         0      Not Applicable
  06/20/2025 03 PM PDT            3.21            281         0      Not Applicable
  06/20/2025 04 PM PDT            3.21            281         0      Not Applicable
  06/20/2025 05 PM PDT            3.21            281         0      Not Applicable
  06/20/2025 06 PM PDT            3.21            281         0      Not Applicable
  06/20/2025 07 PM PDT            3.21            281         0      Not Applicable
  06/20/2025 08 PM PDT            3.20            278         -      Not Applicable
  06/20/2025 09 PM PDT            3.21            281         +      Not Applicable
  06/20/2025 10 PM PDT            3.21            281         0      Not Applicable
  06/20/2025 11 PM PDT            3.21            281         0      Not Applicable
  06/21/2025 12 AM PDT            3.21            281         0      Not Applicable
  06/21/2025 01 AM PDT            3.21            281         0      Not Applicable
  06/21/2025 02 AM PDT            3.21            281         0      Not Applicable
  06/21/2025 03 AM PDT            3.20            278         -      Not Applicable
  06/21/2025 04 AM PDT            3.21            281         +      Not Applicable
  06/21/2025 05 AM PDT            3.21            281         0      Not Applicable
  06/21/2025 06 AM PDT            3.22            283         +      Not Applicable
  06/21/2025 07 AM PDT            3.22            283         0      Not Applicable
  06/21/2025 08 AM PDT            3.22            283         0      Not Applicable
  06/21/2025 09 AM PDT            3.21            281         -      Not Applicable
  06/21/2025 10 AM PDT            3.22            283         +      Not Applicable
  06/21/2025 11 AM PDT            3.22            283         0      Not Applicable
  06/21/2025 12 PM PDT            3.23            286         +      Not Applicable
  06/21/2025 01 PM PDT            3.22            283         -      Not Applicable
  06/21/2025 02 PM PDT            3.23            286         +      Not Applicable
  06/21/2025 03 PM PDT            3.22            283         -      Not Applicable
  06/21/2025 04 PM PDT            3.22            283         0      Not Applicable
  06/21/2025 05 PM PDT            3.21            281         -      Not Applicable
  06/21/2025 06 PM PDT            3.22            283         +      Not Applicable
  06/21/2025 07 PM PDT            3.22            283         0      Not Applicable
  06/21/2025 08 PM PDT            3.21            281         -      Not Applicable
  06/21/2025 09 PM PDT            3.21            281         0      Not Applicable
  06/21/2025 10 PM PDT            3.21            281         0      Not Applicable
  06/21/2025 11 PM PDT            3.21            281         0      Not Applicable
  06/22/2025 12 AM PDT            3.21            281         0      Not Applicable
  06/22/2025 01 AM PDT            3.21            281         0      Not Applicable
  06/22/2025 02 AM PDT            3.22            283         +      Not Applicable
  06/22/2025 03 AM PDT            3.20            278         -      Not Applicable
  06/22/2025 04 AM PDT            3.21            281         +      Not Applicable
  06/22/2025 05 AM PDT            3.22            283         +      Not Applicable
  06/22/2025 06 AM PDT            3.21            281         -      Not Applicable
  06/22/2025 07 AM PDT            3.22            283         +      Not Applicable
  06/22/2025 08 AM PDT            3.22            283         0      Not Applicable
  06/22/2025 09 AM PDT            3.21            281         -      Not Applicable
  06/22/2025 10 AM PDT            3.23            286         +      Not Applicable
  06/22/2025 11 AM PDT            3.22            283         -      Not Applicable
  06/22/2025 12 PM PDT            3.23            286         +      Not Applicable
  06/22/2025 01 PM PDT            3.22            283         -      Not Applicable
  06/22/2025 02 PM PDT            3.23            286         +      Not Applicable
  06/22/2025 03 PM PDT            3.23            286         0      Not Applicable
  06/22/2025 04 PM PDT            3.23            286         0      Not Applicable
  06/22/2025 05 PM PDT            3.23            286         0      Not Applicable
  06/22/2025 06 PM PDT            3.23            286         0      Not Applicable
  06/22/2025 07 PM PDT            3.22            283         -      Not Applicable
  06/22/2025 08 PM PDT            3.22            283         0      Not Applicable
  06/22/2025 09 PM PDT            3.22            283         0      Not Applicable
  06/22/2025 10 PM PDT            3.22            283         0      Not Applicable
  06/22/2025 11 PM PDT            3.21            281         -      Not Applicable
  06/23/2025 12 AM PDT            3.21            281         0      Not Applicable
  06/23/2025 01 AM PDT            3.20            278         -      Not Applicable
  06/23/2025 02 AM PDT            3.20            278         0      Not Applicable
  06/23/2025 03 AM PDT            3.21            281         +      Not Applicable
  06/23/2025 04 AM PDT            3.20            278         -      Not Applicable
  06/23/2025 05 AM PDT            3.20            278         0      Not Applicable
  06/23/2025 06 AM PDT            3.20            278         0      Not Applicable
  06/23/2025 07 AM PDT            3.20            278         0      Not Applicable
  06/23/2025 08 AM PDT            3.21            281         +      Not Applicable
  06/23/2025 09 AM PDT            3.20            278         -      Not Applicable
  06/23/2025 10 AM PDT            3.21            281         +      Not Applicable
  06/23/2025 11 AM PDT            3.21            281         0      Not Applicable
  06/23/2025 12 PM PDT            3.22            283         +      Not Applicable
  06/23/2025 01 PM PDT            3.20            278         -      Not Applicable
  06/23/2025 02 PM PDT            3.21            281         +      Not Applicable
  06/23/2025 03 PM PDT            3.21            281         0      Not Applicable
  06/23/2025 04 PM PDT            3.21            281         0      Not Applicable
  06/23/2025 05 PM PDT            3.21            281         0      Not Applicable
  06/23/2025 06 PM PDT            3.21            281         0      Not Applicable
  06/23/2025 07 PM PDT            3.20            278         -      Not Applicable
  06/23/2025 08 PM PDT            3.20            278         0      Not Applicable
  06/23/2025 09 PM PDT            3.19            275         -      Not Applicable
  06/23/2025 10 PM PDT            3.19            275         0      Not Applicable
  06/23/2025 11 PM PDT            3.19            275         0      Not Applicable
  06/24/2025 12 AM PDT            3.18            273         -      Not Applicable
  06/24/2025 01 AM PDT            3.19            275         +      Not Applicable
  06/24/2025 02 AM PDT            3.18            273         -      Not Applicable
  06/24/2025 03 AM PDT            3.17            270         -      Not Applicable
  06/24/2025 04 AM PDT            3.17            270         0      Not Applicable
  06/24/2025 05 AM PDT            3.18            273         +      Not Applicable
  06/24/2025 06 AM PDT            3.18            273         0      Not Applicable
  06/24/2025 07 AM PDT            3.18            273         0      Not Applicable
  06/24/2025 08 AM PDT            3.17            270         -      Not Applicable
  06/24/2025 09 AM PDT            3.17            270         0      Not Applicable
  06/24/2025 10 AM PDT            3.18            273         +      Not Applicable
  06/24/2025 11 AM PDT            3.18            273         0      Not Applicable
  06/24/2025 12 PM PDT            3.17            270         -      Not Applicable
  06/24/2025 01 PM PDT            3.19            275         +      Not Applicable
  06/24/2025 02 PM PDT            3.18            273         -      Not Applicable
  06/24/2025 03 PM PDT            3.17            270         -      Not Applicable
  06/24/2025 04 PM PDT            3.17            270         0      Not Applicable
  06/24/2025 05 PM PDT            3.17            270         0      Not Applicable
  06/24/2025 06 PM PDT            3.17            270         0      Not Applicable
  06/24/2025 07 PM PDT            3.16            267         -      Not Applicable
  06/24/2025 08 PM PDT            3.16            267         0      Not Applicable
  06/24/2025 09 PM PDT            3.15            265         -      Not Applicable
  06/24/2025 10 PM PDT            3.15            265         0      Not Applicable
  06/24/2025 11 PM PDT            3.14            262         -      Not Applicable
  06/25/2025 12 AM PDT            3.14            262         0      Not Applicable
  06/25/2025 01 AM PDT            3.14            262         0      Not Applicable
  06/25/2025 02 AM PDT            3.13            260         -      Not Applicable
  06/25/2025 03 AM PDT            3.14            262         +      Not Applicable
  06/25/2025 04 AM PDT            3.13            260         -      Not Applicable
  06/25/2025 05 AM PDT            3.14            262         +      Not Applicable
  06/25/2025 06 AM PDT            3.14            262         0      Not Applicable
  06/25/2025 07 AM PDT            3.14            262         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/25/2025 08 AM PDT            3.14            262                Not Applicable
  06/25/2025 09 AM PDT            3.14            262         0      Not Applicable
  06/25/2025 10 AM PDT            3.13            260         -      Not Applicable
  06/25/2025 11 AM PDT            3.13            260         0      Not Applicable
  06/25/2025 12 PM PDT            3.13            260         0      Not Applicable
  06/25/2025 01 PM PDT            3.13            260         0      Not Applicable
  06/25/2025 02 PM PDT            3.13            260         0      Not Applicable
  06/25/2025 03 PM PDT            3.13            260         0      Not Applicable
  06/25/2025 04 PM PDT            3.13            260         0      Not Applicable
  06/25/2025 05 PM PDT            3.13            260         0      Not Applicable
  06/25/2025 06 PM PDT            3.12            257         -      Not Applicable
  06/25/2025 07 PM PDT            3.12            257         0      Not Applicable
  06/25/2025 08 PM PDT            3.12            257         0      Not Applicable
  06/25/2025 09 PM PDT            3.12            257         0      Not Applicable
  06/25/2025 10 PM PDT            3.12            257         0      Not Applicable
  06/25/2025 11 PM PDT            3.12            257         0      Not Applicable
  06/26/2025 12 AM PDT            3.12            257         0      Not Applicable
  06/26/2025 01 AM PDT            3.11            254         -      Not Applicable
  06/26/2025 02 AM PDT            3.11            254         0      Not Applicable
  06/26/2025 03 AM PDT            3.11            254         0      Not Applicable
  06/26/2025 04 AM PDT            3.11            254         0      Not Applicable
  06/26/2025 05 AM PDT            3.11            254         0      Not Applicable
  06/26/2025 06 AM PDT            3.11            254         0      Not Applicable
  06/26/2025 07 AM PDT            3.10            252         -      Not Applicable
  06/26/2025 08 AM PDT            3.10            252         0      Not Applicable
  06/26/2025 09 AM PDT            3.10            252         0      Not Applicable
  06/26/2025 10 AM PDT            3.10            252         0      Not Applicable
  06/26/2025 11 AM PDT            3.10            252         0      Not Applicable
  06/26/2025 12 PM PDT            3.10            252         0      Not Applicable
  06/26/2025 01 PM PDT            3.10            252         0      Not Applicable
  06/26/2025 02 PM PDT            3.10            252         0      Not Applicable
  06/26/2025 03 PM PDT            3.10            252         0      Not Applicable
  06/26/2025 04 PM PDT            3.09            249         -      Not Applicable
  06/26/2025 05 PM PDT            3.09            249         0      Not Applicable
  06/26/2025 06 PM PDT            3.09            249         0      Not Applicable
  06/26/2025 07 PM PDT            3.09            249         0      Not Applicable
  06/26/2025 08 PM PDT            3.09            249         0      Not Applicable
  06/26/2025 09 PM PDT            3.09            249         0      Not Applicable
  06/26/2025 10 PM PDT            3.08            247         -      Not Applicable
  06/26/2025 11 PM PDT            3.08            247         0      Not Applicable
  06/27/2025 12 AM PDT            3.08            247         0      Not Applicable
  06/27/2025 01 AM PDT            3.08            247         0      Not Applicable
  06/27/2025 02 AM PDT            3.08            247         0      Not Applicable
  06/27/2025 03 AM PDT            3.08            247         0      Not Applicable
  06/27/2025 04 AM PDT            3.08            247         0      Not Applicable
  06/27/2025 05 AM PDT            3.07            244         -      Not Applicable
  06/27/2025 06 AM PDT            3.07            244         0      Not Applicable
  06/27/2025 07 AM PDT            3.07            244         0      Not Applicable
  06/27/2025 08 AM PDT            3.07            244         0      Not Applicable
  06/27/2025 09 AM PDT            3.07            244         0      Not Applicable
  06/27/2025 10 AM PDT            3.07            244         0      Not Applicable
  06/27/2025 11 AM PDT            3.07            244         0      Not Applicable
  06/27/2025 12 PM PDT            3.06            242         -      Not Applicable
  06/27/2025 01 PM PDT            3.06            242         0      Not Applicable
  06/27/2025 02 PM PDT            3.06            242         0      Not Applicable
  06/27/2025 03 PM PDT            3.06            242         0      Not Applicable
  06/27/2025 04 PM PDT            3.06            242         0      Not Applicable
  06/27/2025 05 PM PDT            3.06            242         0      Not Applicable
  06/27/2025 06 PM PDT            3.06            242         0      Not Applicable
  06/27/2025 07 PM PDT            3.05            239         -      Not Applicable
  06/27/2025 08 PM PDT            3.05            239         0      Not Applicable
  06/27/2025 09 PM PDT            3.05            239         0      Not Applicable
  06/27/2025 10 PM PDT            3.05            239         0      Not Applicable
  06/27/2025 11 PM PDT            3.05            239         0      Not Applicable
  06/28/2025 12 AM PDT            3.05            239         0      Not Applicable
  06/28/2025 01 AM PDT            3.04            237         -      Not Applicable
  06/28/2025 02 AM PDT            3.04            237         0      Not Applicable
  06/28/2025 03 AM PDT            3.04            237         0      Not Applicable
  06/28/2025 04 AM PDT            3.04            237         0      Not Applicable
  06/28/2025 05 AM PDT            3.04            237         0      Not Applicable
  06/28/2025 06 AM PDT            3.04            237         0      Not Applicable
  06/28/2025 07 AM PDT            3.04            237         0      Not Applicable
  06/28/2025 08 AM PDT            3.03            234         -      Not Applicable
  06/28/2025 09 AM PDT            3.03            234         0      Not Applicable
  06/28/2025 10 AM PDT            3.03            234         0      Not Applicable
  06/28/2025 11 AM PDT            3.03            234         0      Not Applicable
  06/28/2025 12 PM PDT            3.03            234         0      Not Applicable
  06/28/2025 01 PM PDT            3.03            234         0      Not Applicable
  06/28/2025 02 PM PDT            3.03            234         0      Not Applicable
  06/28/2025 03 PM PDT            3.02            232         -      Not Applicable
  06/28/2025 04 PM PDT            3.02            232         0      Not Applicable
  06/28/2025 05 PM PDT            3.02            232         0      Not Applicable
  06/28/2025 06 PM PDT            3.02            232         0      Not Applicable
  06/28/2025 07 PM PDT            3.02            232         0      Not Applicable
  06/28/2025 08 PM PDT            3.02            232         0      Not Applicable
  06/28/2025 09 PM PDT            3.02            232         0      Not Applicable
  06/28/2025 10 PM PDT            3.01            230         -      Not Applicable
  06/28/2025 11 PM PDT            3.01            230         0      Not Applicable
  06/29/2025 12 AM PDT            3.01            230         0      Not Applicable
  06/29/2025 01 AM PDT            3.01            230         0      Not Applicable
  06/29/2025 02 AM PDT            3.01            230         0      Not Applicable
  06/29/2025 03 AM PDT            3.01            230         0      Not Applicable
  06/29/2025 04 AM PDT            3.00            227         -      Not Applicable
  06/29/2025 05 AM PDT            3.00            227         0      Not Applicable
  06/29/2025 06 AM PDT            3.00            227         0      Not Applicable
  06/29/2025 07 AM PDT            3.00            227         0      Not Applicable
  06/29/2025 08 AM PDT            3.00            227         0      Not Applicable
  06/29/2025 09 AM PDT            3.00            227         0      Not Applicable
  06/29/2025 10 AM PDT            3.00            227         0      Not Applicable
  06/29/2025 11 AM PDT            3.00            227         0      Not Applicable
  06/29/2025 12 PM PDT            2.99            225         -      Not Applicable
  06/29/2025 01 PM PDT            2.99            225         0      Not Applicable
  06/29/2025 02 PM PDT            2.99            225         0      Not Applicable
  06/29/2025 03 PM PDT            2.99            225         0      Not Applicable
  06/29/2025 04 PM PDT            2.99            225         0      Not Applicable
  06/29/2025 05 PM PDT            2.99            225         0      Not Applicable
  06/29/2025 06 PM PDT            2.98            222         -      Not Applicable
  06/29/2025 07 PM PDT            2.98            222         0      Not Applicable
  06/29/2025 08 PM PDT            2.98            222         0      Not Applicable
  06/29/2025 09 PM PDT            2.98            222         0      Not Applicable
  06/29/2025 10 PM PDT            2.98            222         0      Not Applicable
  06/29/2025 11 PM PDT            2.98            222         0      Not Applicable
  06/30/2025 12 AM PDT            2.97            220         -      Not Applicable
  06/30/2025 01 AM PDT            2.97            220         0      Not Applicable
  06/30/2025 02 AM PDT            2.97            220         0      Not Applicable
  06/30/2025 03 AM PDT            2.97            220         0      Not Applicable
  06/30/2025 04 AM PDT            2.97            220         0      Not Applicable
  06/30/2025 05 AM PDT            2.97            220         0      Not Applicable
  06/30/2025 06 AM PDT            2.96            218         -      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.