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

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SOUTH FORK TRINITY RIVER - HYAMPOM (HYMC1)
Latitude: 40.65º NLongitude: 123.49º WElevation: 1211 Feet
Location: Trinity County in CaliforniaRiver Group: North Coast
Issuance Time: Mar 22 2023 at 2:24 PM PDTNext Issuance: Mar 23 2023 at 9:00 AM PDT
Monitor Stage: N/A Flood Stage: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: South Fork Trinity River - Hyampom (HYMC1)
#
# File Generation Time:  03/22/2023 at 02:25 PM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/20/2023 at 08:00 AM PDT
# Maximum Observed Stage:                       11.2 Feet
# Maximum Observed Flow:                        8044 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/22/2023 at 03:00 PM PDT
# Maximum Forecast Stage:                       9.5 Feet
# Maximum Forecast Flow:                        5914 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/17/2023 02 PM PDT            11.0           7756                Not Applicable
  03/17/2023 03 PM PDT            10.9           7680         -      Not Applicable
  03/17/2023 04 PM PDT            10.9           7566         -      Not Applicable
  03/17/2023 05 PM PDT            10.8           7540         -      Not Applicable
  03/17/2023 06 PM PDT            10.8           7465         -      Not Applicable
  03/17/2023 07 PM PDT            10.7           7414         -      Not Applicable
  03/17/2023 08 PM PDT            10.7           7377         -      Not Applicable
  03/17/2023 09 PM PDT            10.7           7352         -      Not Applicable
  03/17/2023 10 PM PDT            10.7           7377         +      Not Applicable
  03/17/2023 11 PM PDT            10.6           7289         -      Not Applicable
  03/18/2023 12 AM PDT            10.7           7302         +      Not Applicable
  03/18/2023 01 AM PDT            10.7           7339         +      Not Applicable
  03/18/2023 02 AM PDT            10.6           7289         -      Not Applicable
  03/18/2023 03 AM PDT            10.7           7302         +      Not Applicable
  03/18/2023 04 AM PDT            10.6           7264         -      Not Applicable
  03/18/2023 05 AM PDT            10.6           7239         -      Not Applicable
  03/18/2023 06 AM PDT            10.6           7227         -      Not Applicable
  03/18/2023 07 AM PDT            10.5           7165         -      Not Applicable
  03/18/2023 08 AM PDT            10.5           7078         -      Not Applicable
  03/18/2023 09 AM PDT            10.4           7029         -      Not Applicable
  03/18/2023 10 AM PDT            10.4           6980         -      Not Applicable
  03/18/2023 11 AM PDT            10.3           6882         -      Not Applicable
  03/18/2023 12 PM PDT            10.2           6809         -      Not Applicable
  03/18/2023 01 PM PDT            10.2           6784         -      Not Applicable
  03/18/2023 02 PM PDT            10.2           6687         -      Not Applicable
  03/18/2023 03 PM PDT            10.1           6651         -      Not Applicable
  03/18/2023 04 PM PDT            10.1           6603         -      Not Applicable
  03/18/2023 05 PM PDT            10.1           6603         0      Not Applicable
  03/18/2023 06 PM PDT            10.0           6543         -      Not Applicable
  03/18/2023 07 PM PDT            10.0           6507         -      Not Applicable
  03/18/2023 08 PM PDT            10.0           6459         -      Not Applicable
  03/18/2023 09 PM PDT             9.9           6447         -      Not Applicable
  03/18/2023 10 PM PDT             9.9           6435         -      Not Applicable
  03/18/2023 11 PM PDT             9.9           6423         -      Not Applicable
  03/19/2023 12 AM PDT             9.9           6388         -      Not Applicable
  03/19/2023 01 AM PDT            10.0           6459         +      Not Applicable
  03/19/2023 02 AM PDT             9.9           6412         -      Not Applicable
  03/19/2023 03 AM PDT             9.9           6423         +      Not Applicable
  03/19/2023 04 AM PDT             9.9           6352         -      Not Applicable
  03/19/2023 05 AM PDT             9.9           6364         +      Not Applicable
  03/19/2023 06 AM PDT             9.9           6352         -      Not Applicable
  03/19/2023 07 AM PDT             9.9           6352         0      Not Applicable
  03/19/2023 08 AM PDT             9.9           6364         +      Not Applicable
  03/19/2023 09 AM PDT             9.9           6364         0      Not Applicable
  03/19/2023 10 AM PDT             9.9           6376         +      Not Applicable
  03/19/2023 11 AM PDT             9.9           6400         +      Not Applicable
  03/19/2023 12 PM PDT            10.0           6495         +      Not Applicable
  03/19/2023 01 PM PDT            10.0           6543         +      Not Applicable
  03/19/2023 02 PM PDT            10.1           6603         +      Not Applicable
  03/19/2023 03 PM PDT            10.2           6712         +      Not Applicable
  03/19/2023 04 PM PDT            10.2           6748         +      Not Applicable
  03/19/2023 05 PM PDT            10.3           6833         +      Not Applicable
  03/19/2023 06 PM PDT            10.3           6906         +      Not Applicable
  03/19/2023 07 PM PDT            10.4           6980         +      Not Applicable
  03/19/2023 08 PM PDT            10.5           7115         +      Not Applicable
  03/19/2023 09 PM PDT            10.6           7227         +      Not Applicable
  03/19/2023 10 PM PDT            10.7           7352         +      Not Applicable
  03/19/2023 11 PM PDT            10.8           7502         +      Not Applicable
  03/20/2023 12 AM PDT            10.9           7604         +      Not Applicable
  03/20/2023 01 AM PDT            10.9           7642         +      Not Applicable
  03/20/2023 02 AM PDT            11.0           7718         +      Not Applicable
  03/20/2023 03 AM PDT            11.1           7833         +      Not Applicable
  03/20/2023 04 AM PDT            11.1           7884         +      Not Applicable
  03/20/2023 05 AM PDT            11.2           7987         +      Not Applicable
  03/20/2023 06 AM PDT            11.2           8015         +      Not Applicable
  03/20/2023 07 AM PDT            11.2           8015         0      Not Applicable
  03/20/2023 08 AM PDT            11.2           8044         +      Not Applicable
  03/20/2023 09 AM PDT            11.2           7987         -      Not Applicable
  03/20/2023 10 AM PDT            11.2           7974         -      Not Applicable
  03/20/2023 11 AM PDT            11.1           7884         -      Not Applicable
  03/20/2023 12 PM PDT            11.1           7923         +      Not Applicable
  03/20/2023 01 PM PDT            11.1           7884         -      Not Applicable
  03/20/2023 02 PM PDT            11.1           7846         -      Not Applicable
  03/20/2023 03 PM PDT            11.0           7769         -      Not Applicable
  03/20/2023 04 PM PDT            11.0           7692         -      Not Applicable
  03/20/2023 05 PM PDT            10.8           7553         -      Not Applicable
  03/20/2023 06 PM PDT            10.8           7515         -      Not Applicable
  03/20/2023 07 PM PDT            10.7           7389         -      Not Applicable
  03/20/2023 08 PM PDT            10.7           7414         +      Not Applicable
  03/20/2023 09 PM PDT            10.7           7339         -      Not Applicable
  03/20/2023 10 PM PDT            10.7           7414         +      Not Applicable
  03/20/2023 11 PM PDT            10.7           7352         -      Not Applicable
  03/21/2023 12 AM PDT            10.7           7377         +      Not Applicable
  03/21/2023 01 AM PDT            10.7           7402         +      Not Applicable
  03/21/2023 02 AM PDT            10.7           7389         -      Not Applicable
  03/21/2023 03 AM PDT            10.7           7414         +      Not Applicable
  03/21/2023 04 AM PDT            10.7           7389         -      Not Applicable
  03/21/2023 05 AM PDT            10.7           7414         +      Not Applicable
  03/21/2023 06 AM PDT            10.7           7364         -      Not Applicable
  03/21/2023 07 AM PDT            10.6           7264         -      Not Applicable
  03/21/2023 08 AM PDT            10.6           7239         -      Not Applicable
  03/21/2023 09 AM PDT            10.6           7227         -      Not Applicable
  03/21/2023 10 AM PDT            10.5           7165         -      Not Applicable
  03/21/2023 11 AM PDT            10.5           7140         -      Not Applicable
  03/21/2023 12 PM PDT            10.5           7115         -      Not Applicable
  03/21/2023 01 PM PDT            10.4           6980         -      Not Applicable
  03/21/2023 02 PM PDT            10.4           7017         +      Not Applicable
  03/21/2023 03 PM PDT            10.4           6955         -      Not Applicable
  03/21/2023 04 PM PDT            10.3           6882         -      Not Applicable
  03/21/2023 05 PM PDT            10.3           6845         -      Not Applicable
  03/21/2023 06 PM PDT            10.3           6833         -      Not Applicable
  03/21/2023 07 PM PDT            10.2           6736         -      Not Applicable
  03/21/2023 08 PM PDT            10.2           6699         -      Not Applicable
  03/21/2023 09 PM PDT            10.1           6675         -      Not Applicable
  03/21/2023 10 PM PDT            10.1           6627         -      Not Applicable
  03/21/2023 11 PM PDT            10.1           6675         +      Not Applicable
  03/22/2023 12 AM PDT            10.1           6579         -      Not Applicable
  03/22/2023 01 AM PDT            10.1           6591         +      Not Applicable
  03/22/2023 02 AM PDT            10.1           6567         -      Not Applicable
  03/22/2023 03 AM PDT            10.0           6519         -      Not Applicable
  03/22/2023 04 AM PDT            10.0           6531         +      Not Applicable
  03/22/2023 05 AM PDT            10.0           6495         -      Not Applicable
  03/22/2023 06 AM PDT             9.9           6412         -      Not Applicable
  03/22/2023 07 AM PDT             9.9           6364         -      Not Applicable
  03/22/2023 08 AM PDT             9.8           6328         -      Not Applicable
  03/22/2023 09 AM PDT             9.8           6269         -      Not Applicable
  03/22/2023 10 AM PDT             9.7           6199         -      Not Applicable
  03/22/2023 11 AM PDT             9.7           6187         -      Not Applicable
  03/22/2023 12 PM PDT             9.6           6070         -      Not Applicable
  03/22/2023 01 PM PDT             9.6           6012         -      Not Applicable
  03/22/2023 02 PM PDT             9.5           5963         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/22/2023 03 PM PDT             9.5           5914                Not Applicable
  03/22/2023 04 PM PDT             9.5           5865         -      Not Applicable
  03/22/2023 05 PM PDT             9.4           5816         -      Not Applicable
  03/22/2023 06 PM PDT             9.4           5779         -      Not Applicable
  03/22/2023 07 PM PDT             9.4           5743         -      Not Applicable
  03/22/2023 08 PM PDT             9.3           5707         -      Not Applicable
  03/22/2023 09 PM PDT             9.3           5682         -      Not Applicable
  03/22/2023 10 PM PDT             9.3           5646         -      Not Applicable
  03/22/2023 11 PM PDT             9.3           5634         -      Not Applicable
  03/23/2023 12 AM PDT             9.2           5610         -      Not Applicable
  03/23/2023 01 AM PDT             9.2           5586         -      Not Applicable
  03/23/2023 02 AM PDT             9.2           5562         -      Not Applicable
  03/23/2023 03 AM PDT             9.2           5538         -      Not Applicable
  03/23/2023 04 AM PDT             9.2           5514         -      Not Applicable
  03/23/2023 05 AM PDT             9.2           5490         -      Not Applicable
  03/23/2023 06 AM PDT             9.1           5443         -      Not Applicable
  03/23/2023 07 AM PDT             9.1           5407         -      Not Applicable
  03/23/2023 08 AM PDT             9.0           5360         -      Not Applicable
  03/23/2023 09 AM PDT             9.0           5313         -      Not Applicable
  03/23/2023 10 AM PDT             9.0           5266         -      Not Applicable
  03/23/2023 11 AM PDT             8.9           5207         -      Not Applicable
  03/23/2023 12 PM PDT             8.9           5161         -      Not Applicable
  03/23/2023 01 PM PDT             8.8           5114         -      Not Applicable
  03/23/2023 02 PM PDT             8.8           5080         -      Not Applicable
  03/23/2023 03 PM PDT             8.8           5034         -      Not Applicable
  03/23/2023 04 PM PDT             8.7           4988         -      Not Applicable
  03/23/2023 05 PM PDT             8.7           4953         -      Not Applicable
  03/23/2023 06 PM PDT             8.7           4919         -      Not Applicable
  03/23/2023 07 PM PDT             8.6           4874         -      Not Applicable
  03/23/2023 08 PM PDT             8.6           4840         -      Not Applicable
  03/23/2023 09 PM PDT             8.6           4794         -      Not Applicable
  03/23/2023 10 PM PDT             8.5           4761         -      Not Applicable
  03/23/2023 11 PM PDT             8.5           4716         -      Not Applicable
  03/24/2023 12 AM PDT             8.4           4682         -      Not Applicable
  03/24/2023 01 AM PDT             8.4           4638         -      Not Applicable
  03/24/2023 02 AM PDT             8.4           4593         -      Not Applicable
  03/24/2023 03 AM PDT             8.3           4560         -      Not Applicable
  03/24/2023 04 AM PDT             8.3           4516         -      Not Applicable
  03/24/2023 05 AM PDT             8.3           4472         -      Not Applicable
  03/24/2023 06 AM PDT             8.2           4428         -      Not Applicable
  03/24/2023 07 AM PDT             8.2           4395         -      Not Applicable
  03/24/2023 08 AM PDT             8.2           4352         -      Not Applicable
  03/24/2023 09 AM PDT             8.1           4309         -      Not Applicable
  03/24/2023 10 AM PDT             8.1           4265         -      Not Applicable
  03/24/2023 11 AM PDT             8.0           4233         -      Not Applicable
  03/24/2023 12 PM PDT             8.0           4190         -      Not Applicable
  03/24/2023 01 PM PDT             8.0           4158         -      Not Applicable
  03/24/2023 02 PM PDT             7.9           4116         -      Not Applicable
  03/24/2023 03 PM PDT             7.9           4084         -      Not Applicable
  03/24/2023 04 PM PDT             7.9           4042         -      Not Applicable
  03/24/2023 05 PM PDT             7.8           4000         -      Not Applicable
  03/24/2023 06 PM PDT             7.8           3955         -      Not Applicable
  03/24/2023 07 PM PDT             7.8           3922         -      Not Applicable
  03/24/2023 08 PM PDT             7.7           3877         -      Not Applicable
  03/24/2023 09 PM PDT             7.7           3844         -      Not Applicable
  03/24/2023 10 PM PDT             7.6           3800         -      Not Applicable
  03/24/2023 11 PM PDT             7.6           3756         -      Not Applicable
  03/25/2023 12 AM PDT             7.6           3723         -      Not Applicable
  03/25/2023 01 AM PDT             7.5           3690         -      Not Applicable
  03/25/2023 02 AM PDT             7.5           3669         -      Not Applicable
  03/25/2023 03 AM PDT             7.5           3647         -      Not Applicable
  03/25/2023 04 AM PDT             7.5           3625         -      Not Applicable
  03/25/2023 05 AM PDT             7.5           3593         -      Not Applicable
  03/25/2023 06 AM PDT             7.4           3572         -      Not Applicable
  03/25/2023 07 AM PDT             7.4           3550         -      Not Applicable
  03/25/2023 08 AM PDT             7.4           3529         -      Not Applicable
  03/25/2023 09 AM PDT             7.4           3508         -      Not Applicable
  03/25/2023 10 AM PDT             7.3           3486         -      Not Applicable
  03/25/2023 11 AM PDT             7.3           3455         -      Not Applicable
  03/25/2023 12 PM PDT             7.3           3434         -      Not Applicable
  03/25/2023 01 PM PDT             7.3           3413         -      Not Applicable
  03/25/2023 02 PM PDT             7.3           3392         -      Not Applicable
  03/25/2023 03 PM PDT             7.2           3371         -      Not Applicable
  03/25/2023 04 PM PDT             7.2           3350         -      Not Applicable
  03/25/2023 05 PM PDT             7.2           3329         -      Not Applicable
  03/25/2023 06 PM PDT             7.2           3308         -      Not Applicable
  03/25/2023 07 PM PDT             7.2           3288         -      Not Applicable
  03/25/2023 08 PM PDT             7.1           3267         -      Not Applicable
  03/25/2023 09 PM PDT             7.1           3247         -      Not Applicable
  03/25/2023 10 PM PDT             7.1           3216         -      Not Applicable
  03/25/2023 11 PM PDT             7.1           3195         -      Not Applicable
  03/26/2023 12 AM PDT             7.0           3175         -      Not Applicable
  03/26/2023 01 AM PDT             7.0           3165         -      Not Applicable
  03/26/2023 02 AM PDT             7.0           3145         -      Not Applicable
  03/26/2023 03 AM PDT             7.0           3125         -      Not Applicable
  03/26/2023 04 AM PDT             7.0           3104         -      Not Applicable
  03/26/2023 05 AM PDT             7.0           3084         -      Not Applicable
  03/26/2023 06 AM PDT             6.9           3064         -      Not Applicable
  03/26/2023 07 AM PDT             6.9           3044         -      Not Applicable
  03/26/2023 08 AM PDT             6.9           3024         -      Not Applicable
  03/26/2023 09 AM PDT             6.9           3005         -      Not Applicable
  03/26/2023 10 AM PDT             6.9           2995         -      Not Applicable
  03/26/2023 11 AM PDT             6.8           2975         -      Not Applicable
  03/26/2023 12 PM PDT             6.8           2955         -      Not Applicable
  03/26/2023 01 PM PDT             6.8           2945         -      Not Applicable
  03/26/2023 02 PM PDT             6.8           2926         -      Not Applicable
  03/26/2023 03 PM PDT             6.8           2906         -      Not Applicable
  03/26/2023 04 PM PDT             6.8           2887         -      Not Applicable
  03/26/2023 05 PM PDT             6.8           2877         -      Not Applicable
  03/26/2023 06 PM PDT             6.7           2858         -      Not Applicable
  03/26/2023 07 PM PDT             6.7           2838         -      Not Applicable
  03/26/2023 08 PM PDT             6.7           2819         -      Not Applicable
  03/26/2023 09 PM PDT             6.7           2809         -      Not Applicable
  03/26/2023 10 PM PDT             6.7           2790         -      Not Applicable
  03/26/2023 11 PM PDT             6.6           2771         -      Not Applicable
  03/27/2023 12 AM PDT             6.6           2761         -      Not Applicable
  03/27/2023 01 AM PDT             6.6           2742         -      Not Applicable
  03/27/2023 02 AM PDT             6.6           2723         -      Not Applicable
  03/27/2023 03 AM PDT             6.6           2714         -      Not Applicable
  03/27/2023 04 AM PDT             6.6           2695         -      Not Applicable
  03/27/2023 05 AM PDT             6.5           2685         -      Not Applicable
#
# NOTE 1: Stages are rounded to the nearest tenth (.1) 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.