SOUTH FORK TRINITY RIVER - HYAMPOM (HYMC1)
Latitude: 40.65º NLongitude: 123.49º WElevation: 1211 FeetForecast Type: Unofficial Location
Location: Trinity County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Mar 01 2026 at 7:38 AM PSTNext Issuance: Mar 02 2026 at 9:00 AM PST
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:  03/01/2026 at 07:41 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/24/2026 at 11:00 PM PST
# Maximum Observed Stage:                       18.85 Feet
# Maximum Observed Flow:                        27229 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/01/2026 at 08:00 AM PST
# Maximum Forecast Stage:                       8.23 Feet
# Maximum Forecast Flow:                        3516 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/24/2026 07 AM PST            9.73           5495                Not Applicable
  02/24/2026 08 AM PST           10.70           6954         +      Not Applicable
  02/24/2026 09 AM PST           11.79           8788         +      Not Applicable
  02/24/2026 10 AM PST           12.85          10893         +      Not Applicable
  02/24/2026 11 AM PST           13.96          13370         +      Not Applicable
  02/24/2026 12 PM PST           14.98          15865         +      Not Applicable
  02/24/2026 01 PM PST           16.06          18735         +      Not Applicable
  02/24/2026 02 PM PST           16.83          20923         +      Not Applicable
  02/24/2026 03 PM PST           17.48          22864         +      Not Applicable
  02/24/2026 04 PM PST           17.90          24162         +      Not Applicable
  02/24/2026 05 PM PST           18.30          25432         +      Not Applicable
  02/24/2026 06 PM PST           18.47          25981         +      Not Applicable
  02/24/2026 07 PM PST           18.64          26536         +      Not Applicable
  02/24/2026 08 PM PST           18.65          26568         +      Not Applicable
  02/24/2026 09 PM PST           18.85          27229         +      Not Applicable
  02/24/2026 10 PM PST           18.83          27163         -      Not Applicable
  02/24/2026 11 PM PST           18.85          27229         +      Not Applicable
  02/25/2026 12 AM PST           18.58          26339         -      Not Applicable
  02/25/2026 01 AM PST           18.48          26013         -      Not Applicable
  02/25/2026 02 AM PST           18.30          25432         -      Not Applicable
  02/25/2026 03 AM PST           18.06          24666         -      Not Applicable
  02/25/2026 04 AM PST           17.69          23508         -      Not Applicable
  02/25/2026 05 AM PST           17.32          22378         -      Not Applicable
  02/25/2026 06 AM PST           16.89          21099         -      Not Applicable
  02/25/2026 07 AM PST           16.67          20459         -      Not Applicable
  02/25/2026 08 AM PST           16.37          19602         -      Not Applicable
  02/25/2026 09 AM PST           16.03          18652         -      Not Applicable
  02/25/2026 10 AM PST           15.75          17887         -      Not Applicable
  02/25/2026 11 AM PST           15.42          17006         -      Not Applicable
  02/25/2026 12 PM PST           15.22          16482         -      Not Applicable
  02/25/2026 01 PM PST           14.88          15611         -      Not Applicable
  02/25/2026 02 PM PST           14.75          15284         -      Not Applicable
  02/25/2026 03 PM PST           14.50          14664         -      Not Applicable
  02/25/2026 04 PM PST           14.31          14202         -      Not Applicable
  02/25/2026 05 PM PST           14.08          13652         -      Not Applicable
  02/25/2026 06 PM PST           13.82          13044         -      Not Applicable
  02/25/2026 07 PM PST           13.72          12813         -      Not Applicable
  02/25/2026 08 PM PST           13.52          12358         -      Not Applicable
  02/25/2026 09 PM PST           13.40          12089         -      Not Applicable
  02/25/2026 10 PM PST           13.22          11691         -      Not Applicable
  02/25/2026 11 PM PST           13.06          11342         -      Not Applicable
  02/26/2026 12 AM PST           12.91          11020         -      Not Applicable
  02/26/2026 01 AM PST           12.79          10766         -      Not Applicable
  02/26/2026 02 AM PST           12.72          10619         -      Not Applicable
  02/26/2026 03 AM PST           12.56          10287         -      Not Applicable
  02/26/2026 04 AM PST           12.46          10082         -      Not Applicable
  02/26/2026 05 AM PST           12.37           9899         -      Not Applicable
  02/26/2026 06 AM PST           12.17           9499         -      Not Applicable
  02/26/2026 07 AM PST           12.14           9439         -      Not Applicable
  02/26/2026 08 AM PST           11.98           9129         -      Not Applicable
  02/26/2026 09 AM PST           11.85           8895         -      Not Applicable
  02/26/2026 10 AM PST           11.77           8752         -      Not Applicable
  02/26/2026 11 AM PST           11.62           8488         -      Not Applicable
  02/26/2026 12 PM PST           11.57           8401         -      Not Applicable
  02/26/2026 01 PM PST           11.46           8210         -      Not Applicable
  02/26/2026 02 PM PST           11.36           8039         -      Not Applicable
  02/26/2026 03 PM PST           11.28           7904         -      Not Applicable
  02/26/2026 04 PM PST           11.19           7752         -      Not Applicable
  02/26/2026 05 PM PST           11.11           7619         -      Not Applicable
  02/26/2026 06 PM PST           11.00           7438         -      Not Applicable
  02/26/2026 07 PM PST           10.95           7356         -      Not Applicable
  02/26/2026 08 PM PST           10.89           7259         -      Not Applicable
  02/26/2026 09 PM PST           10.78           7082         -      Not Applicable
  02/26/2026 10 PM PST           10.74           7018         -      Not Applicable
  02/26/2026 11 PM PST           10.61           6813         -      Not Applicable
  02/27/2026 12 AM PST           10.57           6750         -      Not Applicable
  02/27/2026 01 AM PST           10.46           6579         -      Not Applicable
  02/27/2026 02 AM PST           10.44           6548         -      Not Applicable
  02/27/2026 03 AM PST           10.35           6411         -      Not Applicable
  02/27/2026 04 AM PST           10.31           6350         -      Not Applicable
  02/27/2026 05 AM PST           10.24           6244         -      Not Applicable
  02/27/2026 06 AM PST           10.19           6169         -      Not Applicable
  02/27/2026 07 AM PST           10.14           6095         -      Not Applicable
  02/27/2026 08 AM PST           10.05           5962         -      Not Applicable
  02/27/2026 09 AM PST            9.95           5816         -      Not Applicable
  02/27/2026 10 AM PST            9.90           5743         -      Not Applicable
  02/27/2026 11 AM PST            9.85           5671         -      Not Applicable
  02/27/2026 12 PM PST            9.81           5612         -      Not Applicable
  02/27/2026 01 PM PST            9.74           5510         -      Not Applicable
  02/27/2026 02 PM PST            9.70           5452         -      Not Applicable
  02/27/2026 03 PM PST            9.62           5337         -      Not Applicable
  02/27/2026 04 PM PST            9.58           5280         -      Not Applicable
  02/27/2026 05 PM PST            9.52           5195         -      Not Applicable
  02/27/2026 06 PM PST            9.45           5097         -      Not Applicable
  02/27/2026 07 PM PST            9.43           5069         -      Not Applicable
  02/27/2026 08 PM PST            9.39           5014         -      Not Applicable
  02/27/2026 09 PM PST            9.29           4873         -      Not Applicable
  02/27/2026 10 PM PST            9.27           4845         -      Not Applicable
  02/27/2026 11 PM PST            9.22           4775         -      Not Applicable
  02/28/2026 12 AM PST            9.15           4679         -      Not Applicable
  02/28/2026 01 AM PST            9.13           4652         -      Not Applicable
  02/28/2026 02 AM PST            9.08           4584         -      Not Applicable
  02/28/2026 03 AM PST            9.03           4517         -      Not Applicable
  02/28/2026 04 AM PST            9.02           4503         -      Not Applicable
  02/28/2026 05 AM PST            8.96           4423         -      Not Applicable
  02/28/2026 06 AM PST            8.94           4397         -      Not Applicable
  02/28/2026 07 AM PST            8.90           4344         -      Not Applicable
  02/28/2026 08 AM PST            8.88           4318         -      Not Applicable
  02/28/2026 09 AM PST            8.84           4266         -      Not Applicable
  02/28/2026 10 AM PST            8.81           4227         -      Not Applicable
  02/28/2026 11 AM PST            8.80           4214         -      Not Applicable
  02/28/2026 12 PM PST            8.73           4125         -      Not Applicable
  02/28/2026 01 PM PST            8.74           4137         +      Not Applicable
  02/28/2026 02 PM PST            8.70           4087         -      Not Applicable
  02/28/2026 03 PM PST            8.64           4011         -      Not Applicable
  02/28/2026 04 PM PST            8.62           3986         -      Not Applicable
  02/28/2026 05 PM PST            8.62           3986         0      Not Applicable
  02/28/2026 06 PM PST            8.59           3949         -      Not Applicable
  02/28/2026 07 PM PST            8.57           3924         -      Not Applicable
  02/28/2026 08 PM PST            8.55           3899         -      Not Applicable
  02/28/2026 09 PM PST            8.53           3875         -      Not Applicable
  02/28/2026 10 PM PST            8.49           3826         -      Not Applicable
  02/28/2026 11 PM PST            8.47           3801         -      Not Applicable
  03/01/2026 12 AM PST            8.45           3777         -      Not Applicable
  03/01/2026 01 AM PST            8.41           3729         -      Not Applicable
  03/01/2026 02 AM PST            8.35           3657         -      Not Applicable
  03/01/2026 03 AM PST            8.33           3634         -      Not Applicable
  03/01/2026 04 AM PST            8.30           3598         -      Not Applicable
  03/01/2026 05 AM PST            8.28           3575         -      Not Applicable
  03/01/2026 06 AM PST            8.26           3551         -      Not Applicable
  03/01/2026 07 AM PST            8.24           3528         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/01/2026 08 AM PST            8.23           3516                Not Applicable
  03/01/2026 09 AM PST            8.22           3505         -      Not Applicable
  03/01/2026 10 AM PST            8.20           3482         -      Not Applicable
  03/01/2026 11 AM PST            8.18           3459         -      Not Applicable
  03/01/2026 12 PM PST            8.16           3436         -      Not Applicable
  03/01/2026 01 PM PST            8.14           3413         -      Not Applicable
  03/01/2026 02 PM PST            8.12           3390         -      Not Applicable
  03/01/2026 03 PM PST            8.10           3367         -      Not Applicable
  03/01/2026 04 PM PST            8.08           3345         -      Not Applicable
  03/01/2026 05 PM PST            8.06           3322         -      Not Applicable
  03/01/2026 06 PM PST            8.04           3300         -      Not Applicable
  03/01/2026 07 PM PST            8.03           3289         -      Not Applicable
  03/01/2026 08 PM PST            8.01           3266         -      Not Applicable
  03/01/2026 09 PM PST            7.99           3244         -      Not Applicable
  03/01/2026 10 PM PST            7.97           3222         -      Not Applicable
  03/01/2026 11 PM PST            7.95           3200         -      Not Applicable
  03/02/2026 12 AM PST            7.93           3178         -      Not Applicable
  03/02/2026 01 AM PST            7.92           3167         -      Not Applicable
  03/02/2026 02 AM PST            7.90           3145         -      Not Applicable
  03/02/2026 03 AM PST            7.88           3124         -      Not Applicable
  03/02/2026 04 AM PST            7.87           3113         -      Not Applicable
  03/02/2026 05 AM PST            7.85           3091         -      Not Applicable
  03/02/2026 06 AM PST            7.83           3070         -      Not Applicable
  03/02/2026 07 AM PST            7.81           3048         -      Not Applicable
  03/02/2026 08 AM PST            7.80           3038         -      Not Applicable
  03/02/2026 09 AM PST            7.78           3016         -      Not Applicable
  03/02/2026 10 AM PST            7.76           2995         -      Not Applicable
  03/02/2026 11 AM PST            7.74           2974         -      Not Applicable
  03/02/2026 12 PM PST            7.73           2963         -      Not Applicable
  03/02/2026 01 PM PST            7.71           2942         -      Not Applicable
  03/02/2026 02 PM PST            7.69           2921         -      Not Applicable
  03/02/2026 03 PM PST            7.67           2901         -      Not Applicable
  03/02/2026 04 PM PST            7.66           2890         -      Not Applicable
  03/02/2026 05 PM PST            7.64           2870         -      Not Applicable
  03/02/2026 06 PM PST            7.62           2849         -      Not Applicable
  03/02/2026 07 PM PST            7.60           2828         -      Not Applicable
  03/02/2026 08 PM PST            7.59           2818         -      Not Applicable
  03/02/2026 09 PM PST            7.57           2798         -      Not Applicable
  03/02/2026 10 PM PST            7.55           2778         -      Not Applicable
  03/02/2026 11 PM PST            7.53           2757         -      Not Applicable
  03/03/2026 12 AM PST            7.52           2747         -      Not Applicable
  03/03/2026 01 AM PST            7.50           2727         -      Not Applicable
  03/03/2026 02 AM PST            7.49           2717         -      Not Applicable
  03/03/2026 03 AM PST            7.47           2697         -      Not Applicable
  03/03/2026 04 AM PST            7.46           2687         -      Not Applicable
  03/03/2026 05 AM PST            7.44           2667         -      Not Applicable
  03/03/2026 06 AM PST            7.43           2657         -      Not Applicable
  03/03/2026 07 AM PST            7.41           2638         -      Not Applicable
  03/03/2026 08 AM PST            7.40           2628         -      Not Applicable
  03/03/2026 09 AM PST            7.38           2608         -      Not Applicable
  03/03/2026 10 AM PST            7.37           2599         -      Not Applicable
  03/03/2026 11 AM PST            7.35           2579         -      Not Applicable
  03/03/2026 12 PM PST            7.33           2560         -      Not Applicable
  03/03/2026 01 PM PST            7.32           2550         -      Not Applicable
  03/03/2026 02 PM PST            7.30           2531         -      Not Applicable
  03/03/2026 03 PM PST            7.29           2521         -      Not Applicable
  03/03/2026 04 PM PST            7.27           2502         -      Not Applicable
  03/03/2026 05 PM PST            7.26           2493         -      Not Applicable
  03/03/2026 06 PM PST            7.25           2483         -      Not Applicable
  03/03/2026 07 PM PST            7.23           2464         -      Not Applicable
  03/03/2026 08 PM PST            7.22           2455         -      Not Applicable
  03/03/2026 09 PM PST            7.20           2436         -      Not Applicable
  03/03/2026 10 PM PST            7.19           2426         -      Not Applicable
  03/03/2026 11 PM PST            7.17           2408         -      Not Applicable
  03/04/2026 12 AM PST            7.16           2398         -      Not Applicable
  03/04/2026 01 AM PST            7.15           2389         -      Not Applicable
  03/04/2026 02 AM PST            7.13           2371         -      Not Applicable
  03/04/2026 03 AM PST            7.12           2361         -      Not Applicable
  03/04/2026 04 AM PST            7.11           2352         -      Not Applicable
  03/04/2026 05 AM PST            7.09           2334         -      Not Applicable
  03/04/2026 06 AM PST            7.08           2325         -      Not Applicable
  03/04/2026 07 AM PST            7.07           2316         -      Not Applicable
  03/04/2026 08 AM PST            7.06           2306         -      Not Applicable
  03/04/2026 09 AM PST            7.04           2288         -      Not Applicable
  03/04/2026 10 AM PST            7.03           2279         -      Not Applicable
  03/04/2026 11 AM PST            7.02           2270         -      Not Applicable
  03/04/2026 12 PM PST            7.01           2261         -      Not Applicable
  03/04/2026 01 PM PST            7.00           2252         -      Not Applicable
  03/04/2026 02 PM PST            6.99           2243         -      Not Applicable
  03/04/2026 03 PM PST            6.98           2234         -      Not Applicable
  03/04/2026 04 PM PST            6.97           2225         -      Not Applicable
  03/04/2026 05 PM PST            6.97           2225         0      Not Applicable
  03/04/2026 06 PM PST            6.96           2216         -      Not Applicable
  03/04/2026 07 PM PST            6.95           2208         -      Not Applicable
  03/04/2026 08 PM PST            6.94           2199         -      Not Applicable
  03/04/2026 09 PM PST            6.93           2190         -      Not Applicable
  03/04/2026 10 PM PST            6.92           2181         -      Not Applicable
  03/04/2026 11 PM PST            6.92           2181         0      Not Applicable
  03/05/2026 12 AM PST            6.91           2172         -      Not Applicable
  03/05/2026 01 AM PST            6.90           2163         -      Not Applicable
  03/05/2026 02 AM PST            6.89           2155         -      Not Applicable
  03/05/2026 03 AM PST            6.88           2146         -      Not Applicable
  03/05/2026 04 AM PST            6.87           2137         -      Not Applicable
  03/05/2026 05 AM PST            6.86           2128         -      Not Applicable
  03/05/2026 06 AM PST            6.85           2120         -      Not Applicable
  03/05/2026 07 AM PST            6.84           2111         -      Not Applicable
  03/05/2026 08 AM PST            6.83           2102         -      Not Applicable
  03/05/2026 09 AM PST            6.82           2094         -      Not Applicable
  03/05/2026 10 AM PST            6.81           2085         -      Not Applicable
  03/05/2026 11 AM PST            6.80           2077         -      Not Applicable
  03/05/2026 12 PM PST            6.79           2068         -      Not Applicable
  03/05/2026 01 PM PST            6.78           2060         -      Not Applicable
  03/05/2026 02 PM PST            6.77           2051         -      Not Applicable
  03/05/2026 03 PM PST            6.76           2043         -      Not Applicable
  03/05/2026 04 PM PST            6.75           2034         -      Not Applicable
  03/05/2026 05 PM PST            6.74           2026         -      Not Applicable
  03/05/2026 06 PM PST            6.73           2017         -      Not Applicable
  03/05/2026 07 PM PST            6.72           2009         -      Not Applicable
  03/05/2026 08 PM PST            6.71           2000         -      Not Applicable
  03/05/2026 09 PM PST            6.70           1992         -      Not Applicable
  03/05/2026 10 PM PST            6.69           1984         -      Not Applicable
  03/05/2026 11 PM PST            6.68           1975         -      Not Applicable
  03/06/2026 12 AM PST            6.68           1975         0      Not Applicable
  03/06/2026 01 AM PST            6.67           1967         -      Not Applicable
  03/06/2026 02 AM PST            6.66           1959         -      Not Applicable
  03/06/2026 03 AM PST            6.66           1959         0      Not Applicable
  03/06/2026 04 AM PST            6.65           1950         -      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.