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TRINITY RIVER - HOOPA (HOOC1)
| Latitude: 41.05º N | Longitude: 123.68º W | Elevation: 333 Feet | | Forecast Type: Official Location |
| Location: Humboldt County in California | Bulletin Group: North Coast | River Group: Klamath |
| Issuance Time: | Apr 12 2026 at 9:07 AM PDT | Next Issuance: | Apr 13 2026 at 9:00 AM PDT
| |
| Action/Monitor: 44.0 Feet | Minor Flood: 48.0 Feet | Moderate Flood: 52.0 Feet | Major Flood: 56.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Trinity River - Hoopa (HOOC1)
#
# File Generation Time: 04/12/2026 at 09:07 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/12/2026 at 08:00 AM PDT
# Maximum Observed Stage: 15.26 Feet
# Maximum Observed Flow: 4516 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/13/2026 at 12:00 PM PDT
# Maximum Forecast Stage: 15.82 Feet
# Maximum Forecast Flow: 5370 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/07/2026 09 AM PDT 13.56 2396 Normal
04/07/2026 10 AM PDT 13.57 2406 + Normal
04/07/2026 11 AM PDT 13.57 2406 0 Normal
04/07/2026 12 PM PDT 13.56 2396 - Normal
04/07/2026 01 PM PDT 13.56 2396 0 Normal
04/07/2026 02 PM PDT 13.56 2396 0 Normal
04/07/2026 03 PM PDT 13.56 2396 0 Normal
04/07/2026 04 PM PDT 13.54 2375 - Normal
04/07/2026 05 PM PDT 13.56 2396 + Normal
04/07/2026 06 PM PDT 13.56 2396 0 Normal
04/07/2026 07 PM PDT 13.55 2386 - Normal
04/07/2026 08 PM PDT 13.53 2365 - Normal
04/07/2026 09 PM PDT 13.53 2365 0 Normal
04/07/2026 10 PM PDT 13.54 2375 + Normal
04/07/2026 11 PM PDT 13.53 2365 - Normal
04/08/2026 12 AM PDT 13.53 2365 0 Normal
04/08/2026 01 AM PDT 13.54 2375 + Normal
04/08/2026 02 AM PDT 13.57 2406 + Normal
04/08/2026 03 AM PDT 13.59 2427 + Normal
04/08/2026 04 AM PDT 13.65 2491 + Normal
04/08/2026 05 AM PDT 13.71 2555 + Normal
04/08/2026 06 AM PDT 13.78 2631 + Normal
04/08/2026 07 AM PDT 13.88 2742 + Normal
04/08/2026 08 AM PDT 13.98 2855 + Normal
04/08/2026 09 AM PDT 14.10 2993 + Normal
04/08/2026 10 AM PDT 14.20 3112 + Normal
04/08/2026 11 AM PDT 14.28 3208 + Normal
04/08/2026 12 PM PDT 14.30 3233 + Normal
04/08/2026 01 PM PDT 14.30 3233 0 Normal
04/08/2026 02 PM PDT 14.28 3208 - Normal
04/08/2026 03 PM PDT 14.28 3208 0 Normal
04/08/2026 04 PM PDT 14.29 3220 + Normal
04/08/2026 05 PM PDT 14.28 3208 - Normal
04/08/2026 06 PM PDT 14.28 3208 0 Normal
04/08/2026 07 PM PDT 14.26 3184 - Normal
04/08/2026 08 PM PDT 14.24 3160 - Normal
04/08/2026 09 PM PDT 14.25 3172 + Normal
04/08/2026 10 PM PDT 14.23 3148 - Normal
04/08/2026 11 PM PDT 14.24 3160 + Normal
04/09/2026 12 AM PDT 14.22 3136 - Normal
04/09/2026 01 AM PDT 14.20 3112 - Normal
04/09/2026 02 AM PDT 14.21 3124 + Normal
04/09/2026 03 AM PDT 14.22 3136 + Normal
04/09/2026 04 AM PDT 14.22 3136 0 Normal
04/09/2026 05 AM PDT 14.20 3112 - Normal
04/09/2026 06 AM PDT 14.20 3112 0 Normal
04/09/2026 07 AM PDT 14.18 3088 - Normal
04/09/2026 08 AM PDT 14.19 3100 + Normal
04/09/2026 09 AM PDT 14.18 3088 - Normal
04/09/2026 10 AM PDT 14.19 3100 + Normal
04/09/2026 11 AM PDT 14.15 3052 - Normal
04/09/2026 12 PM PDT 14.17 3076 + Normal
04/09/2026 01 PM PDT 14.16 3064 - Normal
04/09/2026 02 PM PDT 14.18 3088 + Normal
04/09/2026 03 PM PDT 14.21 3124 + Normal
04/09/2026 04 PM PDT 14.24 3160 + Normal
04/09/2026 05 PM PDT 14.27 3196 + Normal
04/09/2026 06 PM PDT 14.28 3208 + Normal
04/09/2026 07 PM PDT 14.27 3196 - Normal
04/09/2026 08 PM PDT 14.30 3233 + Normal
04/09/2026 09 PM PDT 14.33 3269 + Normal
04/09/2026 10 PM PDT 14.35 3294 + Normal
04/09/2026 11 PM PDT 14.41 3368 + Normal
04/10/2026 12 AM PDT 14.42 3381 + Normal
04/10/2026 01 AM PDT 14.44 3406 + Normal
04/10/2026 02 AM PDT 14.45 3418 + Normal
04/10/2026 03 AM PDT 14.42 3381 - Normal
04/10/2026 04 AM PDT 14.40 3356 - Normal
04/10/2026 05 AM PDT 14.39 3343 - Normal
04/10/2026 06 AM PDT 14.36 3306 - Normal
04/10/2026 07 AM PDT 14.40 3356 + Normal
04/10/2026 08 AM PDT 14.43 3393 + Normal
04/10/2026 09 AM PDT 14.42 3381 - Normal
04/10/2026 10 AM PDT 14.45 3418 + Normal
04/10/2026 11 AM PDT 14.48 3456 + Normal
04/10/2026 12 PM PDT 14.52 3507 + Normal
04/10/2026 01 PM PDT 14.56 3558 + Normal
04/10/2026 02 PM PDT 14.62 3635 + Normal
04/10/2026 03 PM PDT 14.64 3661 + Normal
04/10/2026 04 PM PDT 14.68 3714 + Normal
04/10/2026 05 PM PDT 14.69 3727 + Normal
04/10/2026 06 PM PDT 14.73 3780 + Normal
04/10/2026 07 PM PDT 14.73 3780 0 Normal
04/10/2026 08 PM PDT 14.74 3793 + Normal
04/10/2026 09 PM PDT 14.77 3833 + Normal
04/10/2026 10 PM PDT 14.79 3860 + Normal
04/10/2026 11 PM PDT 14.78 3846 - Normal
04/11/2026 12 AM PDT 14.80 3873 + Normal
04/11/2026 01 AM PDT 14.79 3860 - Normal
04/11/2026 02 AM PDT 14.79 3860 0 Normal
04/11/2026 03 AM PDT 14.78 3846 - Normal
04/11/2026 04 AM PDT 14.76 3820 - Normal
04/11/2026 05 AM PDT 14.76 3820 0 Normal
04/11/2026 06 AM PDT 14.77 3833 + Normal
04/11/2026 07 AM PDT 14.76 3820 - Normal
04/11/2026 08 AM PDT 14.77 3833 + Normal
04/11/2026 09 AM PDT 14.79 3860 + Normal
04/11/2026 10 AM PDT 14.80 3873 + Normal
04/11/2026 11 AM PDT 14.81 3886 + Normal
04/11/2026 12 PM PDT 14.83 3913 + Normal
04/11/2026 01 PM PDT 14.82 3900 - Normal
04/11/2026 02 PM PDT 14.86 3954 + Normal
04/11/2026 03 PM PDT 14.87 3968 + Normal
04/11/2026 04 PM PDT 14.86 3954 - Normal
04/11/2026 05 PM PDT 14.86 3954 0 Normal
04/11/2026 06 PM PDT 14.87 3968 + Normal
04/11/2026 07 PM PDT 14.88 3981 + Normal
04/11/2026 08 PM PDT 14.86 3954 - Normal
04/11/2026 09 PM PDT 14.89 3995 + Normal
04/11/2026 10 PM PDT 14.89 3995 0 Normal
04/11/2026 11 PM PDT 14.91 4022 + Normal
04/12/2026 12 AM PDT 14.90 4008 - Normal
04/12/2026 01 AM PDT 14.94 4063 + Normal
04/12/2026 02 AM PDT 14.98 4118 + Normal
04/12/2026 03 AM PDT 15.02 4174 + Normal
04/12/2026 04 AM PDT 15.06 4230 + Normal
04/12/2026 05 AM PDT 15.10 4287 + Normal
04/12/2026 06 AM PDT 15.13 4329 + Normal
04/12/2026 07 AM PDT 15.21 4444 + Normal
04/12/2026 08 AM PDT 15.26 4516 + Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/12/2026 09 AM PDT 15.30 4575 Normal
04/12/2026 10 AM PDT 15.33 4619 + Normal
04/12/2026 11 AM PDT 15.37 4678 + Normal
04/12/2026 12 PM PDT 15.41 4737 + Normal
04/12/2026 01 PM PDT 15.45 4797 + Normal
04/12/2026 02 PM PDT 15.49 4857 + Normal
04/12/2026 03 PM PDT 15.52 4903 + Normal
04/12/2026 04 PM PDT 15.55 4949 + Normal
04/12/2026 05 PM PDT 15.56 4964 + Normal
04/12/2026 06 PM PDT 15.56 4964 0 Normal
04/12/2026 07 PM PDT 15.55 4949 - Normal
04/12/2026 08 PM PDT 15.54 4933 - Normal
04/12/2026 09 PM PDT 15.52 4903 - Normal
04/12/2026 10 PM PDT 15.49 4857 - Normal
04/12/2026 11 PM PDT 15.47 4827 - Normal
04/13/2026 12 AM PDT 15.45 4797 - Normal
04/13/2026 01 AM PDT 15.43 4767 - Normal
04/13/2026 02 AM PDT 15.43 4767 0 Normal
04/13/2026 03 AM PDT 15.44 4782 + Normal
04/13/2026 04 AM PDT 15.46 4812 + Normal
04/13/2026 05 AM PDT 15.50 4872 + Normal
04/13/2026 06 AM PDT 15.54 4933 + Normal
04/13/2026 07 AM PDT 15.60 5025 + Normal
04/13/2026 08 AM PDT 15.66 5118 + Normal
04/13/2026 09 AM PDT 15.72 5212 + Normal
04/13/2026 10 AM PDT 15.77 5290 + Normal
04/13/2026 11 AM PDT 15.81 5354 + Normal
04/13/2026 12 PM PDT 15.82 5370 + Normal
04/13/2026 01 PM PDT 15.82 5370 0 Normal
04/13/2026 02 PM PDT 15.79 5322 - Normal
04/13/2026 03 PM PDT 15.75 5259 - Normal
04/13/2026 04 PM PDT 15.71 5196 - Normal
04/13/2026 05 PM PDT 15.65 5102 - Normal
04/13/2026 06 PM PDT 15.60 5025 - Normal
04/13/2026 07 PM PDT 15.54 4933 - Normal
04/13/2026 08 PM PDT 15.49 4857 - Normal
04/13/2026 09 PM PDT 15.43 4767 - Normal
04/13/2026 10 PM PDT 15.38 4693 - Normal
04/13/2026 11 PM PDT 15.33 4619 - Normal
04/14/2026 12 AM PDT 15.29 4560 - Normal
04/14/2026 01 AM PDT 15.24 4487 - Normal
04/14/2026 02 AM PDT 15.20 4429 - Normal
04/14/2026 03 AM PDT 15.17 4386 - Normal
04/14/2026 04 AM PDT 15.14 4343 - Normal
04/14/2026 05 AM PDT 15.11 4301 - Normal
04/14/2026 06 AM PDT 15.08 4258 - Normal
04/14/2026 07 AM PDT 15.06 4230 - Normal
04/14/2026 08 AM PDT 15.04 4202 - Normal
04/14/2026 09 AM PDT 15.03 4188 - Normal
04/14/2026 10 AM PDT 15.02 4174 - Normal
04/14/2026 11 AM PDT 15.01 4160 - Normal
04/14/2026 12 PM PDT 15.01 4160 0 Normal
04/14/2026 01 PM PDT 15.01 4160 0 Normal
04/14/2026 02 PM PDT 15.00 4146 - Normal
04/14/2026 03 PM PDT 15.00 4146 0 Normal
04/14/2026 04 PM PDT 15.00 4146 0 Normal
04/14/2026 05 PM PDT 14.99 4132 - Normal
04/14/2026 06 PM PDT 14.99 4132 0 Normal
04/14/2026 07 PM PDT 14.99 4132 0 Normal
04/14/2026 08 PM PDT 14.98 4118 - Normal
04/14/2026 09 PM PDT 14.98 4118 0 Normal
04/14/2026 10 PM PDT 14.97 4105 - Normal
04/14/2026 11 PM PDT 14.97 4105 0 Normal
04/15/2026 12 AM PDT 14.96 4091 - Normal
04/15/2026 01 AM PDT 14.96 4091 0 Normal
04/15/2026 02 AM PDT 14.96 4091 0 Normal
04/15/2026 03 AM PDT 14.95 4077 - Normal
04/15/2026 04 AM PDT 14.95 4077 0 Normal
04/15/2026 05 AM PDT 14.95 4077 0 Normal
04/15/2026 06 AM PDT 14.96 4091 + Normal
04/15/2026 07 AM PDT 14.96 4091 0 Normal
04/15/2026 08 AM PDT 14.96 4091 0 Normal
04/15/2026 09 AM PDT 14.97 4105 + Normal
04/15/2026 10 AM PDT 14.98 4118 + Normal
04/15/2026 11 AM PDT 14.99 4132 + Normal
04/15/2026 12 PM PDT 15.00 4146 + Normal
04/15/2026 01 PM PDT 15.00 4146 0 Normal
04/15/2026 02 PM PDT 15.01 4160 + Normal
04/15/2026 03 PM PDT 15.02 4174 + Normal
04/15/2026 04 PM PDT 15.02 4174 0 Normal
04/15/2026 05 PM PDT 15.03 4188 + Normal
04/15/2026 06 PM PDT 15.03 4188 0 Normal
04/15/2026 07 PM PDT 15.04 4202 + Normal
04/15/2026 08 PM PDT 15.04 4202 0 Normal
04/15/2026 09 PM PDT 15.04 4202 0 Normal
04/15/2026 10 PM PDT 15.05 4216 + Normal
04/15/2026 11 PM PDT 15.05 4216 0 Normal
04/16/2026 12 AM PDT 15.06 4230 + Normal
04/16/2026 01 AM PDT 15.06 4230 0 Normal
04/16/2026 02 AM PDT 15.07 4244 + Normal
04/16/2026 03 AM PDT 15.08 4258 + Normal
04/16/2026 04 AM PDT 15.10 4287 + Normal
04/16/2026 05 AM PDT 15.11 4301 + Normal
04/16/2026 06 AM PDT 15.12 4315 + Normal
04/16/2026 07 AM PDT 15.14 4343 + Normal
04/16/2026 08 AM PDT 15.15 4358 + Normal
04/16/2026 09 AM PDT 15.17 4386 + Normal
04/16/2026 10 AM PDT 15.18 4401 + Normal
04/16/2026 11 AM PDT 15.20 4429 + Normal
04/16/2026 12 PM PDT 15.21 4444 + Normal
04/16/2026 01 PM PDT 15.22 4458 + Normal
04/16/2026 02 PM PDT 15.22 4458 0 Normal
04/16/2026 03 PM PDT 15.23 4473 + Normal
04/16/2026 04 PM PDT 15.23 4473 0 Normal
04/16/2026 05 PM PDT 15.23 4473 0 Normal
04/16/2026 06 PM PDT 15.22 4458 - Normal
04/16/2026 07 PM PDT 15.22 4458 0 Normal
04/16/2026 08 PM PDT 15.21 4444 - Normal
04/16/2026 09 PM PDT 15.20 4429 - Normal
04/16/2026 10 PM PDT 15.18 4401 - Normal
04/16/2026 11 PM PDT 15.17 4386 - Normal
04/17/2026 12 AM PDT 15.15 4358 - Normal
04/17/2026 01 AM PDT 15.14 4343 - Normal
04/17/2026 02 AM PDT 15.12 4315 - Normal
04/17/2026 03 AM PDT 15.11 4301 - Normal
04/17/2026 04 AM PDT 15.10 4287 - Normal
04/17/2026 05 AM PDT 15.09 4272 - Normal
#
# 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.
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