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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: | Mar 17 2026 at 1:02 PM PDT | Next Issuance: | Mar 18 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: 03/17/2026 at 01:02 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/12/2026 at 01:00 PM PDT
# Maximum Observed Stage: 15.14 Feet
# Maximum Observed Flow: 4343 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/21/2026 at 03:00 PM PDT
# Maximum Forecast Stage: 14.86 Feet
# Maximum Forecast Flow: 3954 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/12/2026 01 PM PDT 15.14 4343 Normal
03/12/2026 02 PM PDT 15.13 4329 - Normal
03/12/2026 03 PM PDT 15.13 4329 0 Normal
03/12/2026 04 PM PDT 15.11 4301 - Normal
03/12/2026 05 PM PDT 15.10 4287 - Normal
03/12/2026 06 PM PDT 15.11 4301 + Normal
03/12/2026 07 PM PDT 15.10 4287 - Normal
03/12/2026 08 PM PDT 15.09 4272 - Normal
03/12/2026 09 PM PDT 15.07 4244 - Normal
03/12/2026 10 PM PDT 15.08 4258 + Normal
03/12/2026 11 PM PDT 15.06 4230 - Normal
03/13/2026 12 AM PDT 15.07 4244 + Normal
03/13/2026 01 AM PDT 15.05 4216 - Normal
03/13/2026 02 AM PDT 15.05 4216 0 Normal
03/13/2026 03 AM PDT 15.04 4202 - Normal
03/13/2026 04 AM PDT 15.04 4202 0 Normal
03/13/2026 05 AM PDT 15.04 4202 0 Normal
03/13/2026 06 AM PDT 15.02 4174 - Normal
03/13/2026 07 AM PDT 15.03 4188 + Normal
03/13/2026 08 AM PDT 15.03 4188 0 Normal
03/13/2026 09 AM PDT 15.02 4174 - Normal
03/13/2026 10 AM PDT 15.00 4146 - Normal
03/13/2026 11 AM PDT 14.99 4132 - Normal
03/13/2026 12 PM PDT 15.01 4160 + Normal
03/13/2026 01 PM PDT 14.99 4132 - Normal
03/13/2026 02 PM PDT 14.97 4105 - Normal
03/13/2026 03 PM PDT 14.98 4118 + Normal
03/13/2026 04 PM PDT 14.97 4105 - Normal
03/13/2026 05 PM PDT 14.98 4118 + Normal
03/13/2026 06 PM PDT 14.97 4105 - Normal
03/13/2026 07 PM PDT 14.94 4063 - Normal
03/13/2026 08 PM PDT 14.95 4077 + Normal
03/13/2026 09 PM PDT 14.95 4077 0 Normal
03/13/2026 10 PM PDT 14.94 4063 - Normal
03/13/2026 11 PM PDT 14.93 4049 - Normal
03/14/2026 12 AM PDT 14.92 4036 - Normal
03/14/2026 01 AM PDT 14.93 4049 + Normal
03/14/2026 02 AM PDT 14.93 4049 0 Normal
03/14/2026 03 AM PDT 14.92 4036 - Normal
03/14/2026 04 AM PDT 14.91 4022 - Normal
03/14/2026 05 AM PDT 14.91 4022 0 Normal
03/14/2026 06 AM PDT 14.90 4008 - Normal
03/14/2026 07 AM PDT 14.90 4008 0 Normal
03/14/2026 08 AM PDT 14.89 3995 - Normal
03/14/2026 09 AM PDT 14.90 4008 + Normal
03/14/2026 10 AM PDT 14.88 3981 - Normal
03/14/2026 11 AM PDT 14.87 3968 - Normal
03/14/2026 12 PM PDT 14.89 3995 + Normal
03/14/2026 01 PM PDT 14.87 3968 - Normal
03/14/2026 02 PM PDT 14.86 3954 - Normal
03/14/2026 03 PM PDT 14.87 3968 + Normal
03/14/2026 04 PM PDT 14.86 3954 - Normal
03/14/2026 05 PM PDT 14.87 3968 + Normal
03/14/2026 06 PM PDT 14.85 3940 - Normal
03/14/2026 07 PM PDT 14.84 3927 - Normal
03/14/2026 08 PM PDT 14.83 3913 - Normal
03/14/2026 09 PM PDT 14.84 3927 + Normal
03/14/2026 10 PM PDT 14.83 3913 - Normal
03/14/2026 11 PM PDT 14.83 3913 0 Normal
03/15/2026 12 AM PDT 14.81 3886 - Normal
03/15/2026 01 AM PDT 14.81 3886 0 Normal
03/15/2026 02 AM PDT 14.81 3886 0 Normal
03/15/2026 03 AM PDT 14.80 3873 - Normal
03/15/2026 04 AM PDT 14.80 3873 0 Normal
03/15/2026 05 AM PDT 14.80 3873 0 Normal
03/15/2026 06 AM PDT 14.80 3873 0 Normal
03/15/2026 07 AM PDT 14.79 3860 - Normal
03/15/2026 08 AM PDT 14.78 3846 - Normal
03/15/2026 09 AM PDT 14.78 3846 0 Normal
03/15/2026 10 AM PDT 14.78 3846 0 Normal
03/15/2026 11 AM PDT 14.77 3833 - Normal
03/15/2026 12 PM PDT 14.76 3820 - Normal
03/15/2026 01 PM PDT 14.76 3820 0 Normal
03/15/2026 02 PM PDT 14.75 3806 - Normal
03/15/2026 03 PM PDT 14.76 3820 + Normal
03/15/2026 04 PM PDT 14.75 3806 - Normal
03/15/2026 05 PM PDT 14.76 3820 + Normal
03/15/2026 06 PM PDT 14.75 3806 - Normal
03/15/2026 07 PM PDT 14.73 3780 - Normal
03/15/2026 08 PM PDT 14.75 3806 + Normal
03/15/2026 09 PM PDT 14.73 3780 - Normal
03/15/2026 10 PM PDT 14.73 3780 0 Normal
03/15/2026 11 PM PDT 14.72 3766 - Normal
03/16/2026 12 AM PDT 14.73 3780 + Normal
03/16/2026 01 AM PDT 14.72 3766 - Normal
03/16/2026 02 AM PDT 14.71 3753 - Normal
03/16/2026 03 AM PDT 14.70 3740 - Normal
03/16/2026 04 AM PDT 14.70 3740 0 Normal
03/16/2026 05 AM PDT 14.69 3727 - Normal
03/16/2026 06 AM PDT 14.69 3727 0 Normal
03/16/2026 07 AM PDT 14.68 3714 - Normal
03/16/2026 08 AM PDT 14.68 3714 0 Normal
03/16/2026 09 AM PDT 14.67 3701 - Normal
03/16/2026 10 AM PDT 14.68 3714 + Normal
03/16/2026 11 AM PDT 14.66 3688 - Normal
03/16/2026 12 PM PDT 14.65 3674 - Normal
03/16/2026 01 PM PDT 14.66 3688 + Normal
03/16/2026 02 PM PDT 14.65 3674 - Normal
03/16/2026 03 PM PDT 14.64 3661 - Normal
03/16/2026 04 PM PDT 14.63 3648 - Normal
03/16/2026 05 PM PDT 14.63 3648 0 Normal
03/16/2026 06 PM PDT 14.64 3661 + Normal
03/16/2026 07 PM PDT 14.63 3648 - Normal
03/16/2026 08 PM PDT 14.63 3648 0 Normal
03/16/2026 09 PM PDT 14.63 3648 0 Normal
03/16/2026 10 PM PDT 14.63 3648 0 Normal
03/16/2026 11 PM PDT 14.61 3622 - Normal
03/17/2026 12 AM PDT 14.62 3635 + Normal
03/17/2026 01 AM PDT 14.61 3622 - Normal
03/17/2026 02 AM PDT 14.60 3610 - Normal
03/17/2026 03 AM PDT 14.61 3622 + Normal
03/17/2026 04 AM PDT 14.59 3597 - Normal
03/17/2026 05 AM PDT 14.58 3584 - Normal
03/17/2026 06 AM PDT 14.59 3597 + Normal
03/17/2026 07 AM PDT 14.59 3597 0 Normal
03/17/2026 08 AM PDT 14.59 3597 0 Normal
03/17/2026 09 AM PDT 14.58 3584 - Normal
03/17/2026 10 AM PDT 14.57 3571 - Normal
03/17/2026 11 AM PDT 14.57 3571 0 Normal
03/17/2026 12 PM PDT 14.57 3571 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/17/2026 01 PM PDT 14.57 3571 Normal
03/17/2026 02 PM PDT 14.56 3558 - Normal
03/17/2026 03 PM PDT 14.56 3558 0 Normal
03/17/2026 04 PM PDT 14.55 3545 - Normal
03/17/2026 05 PM PDT 14.55 3545 0 Normal
03/17/2026 06 PM PDT 14.55 3545 0 Normal
03/17/2026 07 PM PDT 14.55 3545 0 Normal
03/17/2026 08 PM PDT 14.55 3545 0 Normal
03/17/2026 09 PM PDT 14.56 3558 + Normal
03/17/2026 10 PM PDT 14.56 3558 0 Normal
03/17/2026 11 PM PDT 14.55 3545 - Normal
03/18/2026 12 AM PDT 14.55 3545 0 Normal
03/18/2026 01 AM PDT 14.55 3545 0 Normal
03/18/2026 02 AM PDT 14.55 3545 0 Normal
03/18/2026 03 AM PDT 14.54 3532 - Normal
03/18/2026 04 AM PDT 14.54 3532 0 Normal
03/18/2026 05 AM PDT 14.54 3532 0 Normal
03/18/2026 06 AM PDT 14.54 3532 0 Normal
03/18/2026 07 AM PDT 14.53 3520 - Normal
03/18/2026 08 AM PDT 14.53 3520 0 Normal
03/18/2026 09 AM PDT 14.53 3520 0 Normal
03/18/2026 10 AM PDT 14.53 3520 0 Normal
03/18/2026 11 AM PDT 14.52 3507 - Normal
03/18/2026 12 PM PDT 14.52 3507 0 Normal
03/18/2026 01 PM PDT 14.52 3507 0 Normal
03/18/2026 02 PM PDT 14.51 3494 - Normal
03/18/2026 03 PM PDT 14.51 3494 0 Normal
03/18/2026 04 PM PDT 14.51 3494 0 Normal
03/18/2026 05 PM PDT 14.50 3481 - Normal
03/18/2026 06 PM PDT 14.50 3481 0 Normal
03/18/2026 07 PM PDT 14.49 3469 - Normal
03/18/2026 08 PM PDT 14.49 3469 0 Normal
03/18/2026 09 PM PDT 14.49 3469 0 Normal
03/18/2026 10 PM PDT 14.48 3456 - Normal
03/18/2026 11 PM PDT 14.48 3456 0 Normal
03/19/2026 12 AM PDT 14.48 3456 0 Normal
03/19/2026 01 AM PDT 14.47 3443 - Normal
03/19/2026 02 AM PDT 14.47 3443 0 Normal
03/19/2026 03 AM PDT 14.47 3443 0 Normal
03/19/2026 04 AM PDT 14.46 3431 - Normal
03/19/2026 05 AM PDT 14.46 3431 0 Normal
03/19/2026 06 AM PDT 14.46 3431 0 Normal
03/19/2026 07 AM PDT 14.45 3418 - Normal
03/19/2026 08 AM PDT 14.45 3418 0 Normal
03/19/2026 09 AM PDT 14.45 3418 0 Normal
03/19/2026 10 AM PDT 14.44 3406 - Normal
03/19/2026 11 AM PDT 14.44 3406 0 Normal
03/19/2026 12 PM PDT 14.44 3406 0 Normal
03/19/2026 01 PM PDT 14.43 3393 - Normal
03/19/2026 02 PM PDT 14.43 3393 0 Normal
03/19/2026 03 PM PDT 14.43 3393 0 Normal
03/19/2026 04 PM PDT 14.43 3393 0 Normal
03/19/2026 05 PM PDT 14.42 3381 - Normal
03/19/2026 06 PM PDT 14.42 3381 0 Normal
03/19/2026 07 PM PDT 14.41 3368 - Normal
03/19/2026 08 PM PDT 14.41 3368 0 Normal
03/19/2026 09 PM PDT 14.41 3368 0 Normal
03/19/2026 10 PM PDT 14.41 3368 0 Normal
03/19/2026 11 PM PDT 14.40 3356 - Normal
03/20/2026 12 AM PDT 14.40 3356 0 Normal
03/20/2026 01 AM PDT 14.40 3356 0 Normal
03/20/2026 02 AM PDT 14.39 3343 - Normal
03/20/2026 03 AM PDT 14.39 3343 0 Normal
03/20/2026 04 AM PDT 14.39 3343 0 Normal
03/20/2026 05 AM PDT 14.39 3343 0 Normal
03/20/2026 06 AM PDT 14.38 3331 - Normal
03/20/2026 07 AM PDT 14.38 3331 0 Normal
03/20/2026 08 AM PDT 14.38 3331 0 Normal
03/20/2026 09 AM PDT 14.38 3331 0 Normal
03/20/2026 10 AM PDT 14.37 3319 - Normal
03/20/2026 11 AM PDT 14.37 3319 0 Normal
03/20/2026 12 PM PDT 14.37 3319 0 Normal
03/20/2026 01 PM PDT 14.36 3306 - Normal
03/20/2026 02 PM PDT 14.36 3306 0 Normal
03/20/2026 03 PM PDT 14.36 3306 0 Normal
03/20/2026 04 PM PDT 14.36 3306 0 Normal
03/20/2026 05 PM PDT 14.35 3294 - Normal
03/20/2026 06 PM PDT 14.35 3294 0 Normal
03/20/2026 07 PM PDT 14.35 3294 0 Normal
03/20/2026 08 PM PDT 14.35 3294 0 Normal
03/20/2026 09 PM PDT 14.34 3282 - Normal
03/20/2026 10 PM PDT 14.34 3282 0 Normal
03/20/2026 11 PM PDT 14.34 3282 0 Normal
03/21/2026 12 AM PDT 14.34 3282 0 Normal
03/21/2026 01 AM PDT 14.34 3282 0 Normal
03/21/2026 02 AM PDT 14.34 3282 0 Normal
03/21/2026 03 AM PDT 14.35 3294 + Normal
03/21/2026 04 AM PDT 14.36 3306 + Normal
03/21/2026 05 AM PDT 14.37 3319 + Normal
03/21/2026 06 AM PDT 14.39 3343 + Normal
03/21/2026 07 AM PDT 14.43 3393 + Normal
03/21/2026 08 AM PDT 14.49 3469 + Normal
03/21/2026 09 AM PDT 14.56 3558 + Normal
03/21/2026 10 AM PDT 14.64 3661 + Normal
03/21/2026 11 AM PDT 14.71 3753 + Normal
03/21/2026 12 PM PDT 14.77 3833 + Normal
03/21/2026 01 PM PDT 14.82 3900 + Normal
03/21/2026 02 PM PDT 14.84 3927 + Normal
03/21/2026 03 PM PDT 14.86 3954 + Normal
03/21/2026 04 PM PDT 14.86 3954 0 Normal
03/21/2026 05 PM PDT 14.86 3954 0 Normal
03/21/2026 06 PM PDT 14.85 3940 - Normal
03/21/2026 07 PM PDT 14.84 3927 - Normal
03/21/2026 08 PM PDT 14.83 3913 - Normal
03/21/2026 09 PM PDT 14.81 3886 - Normal
03/21/2026 10 PM PDT 14.80 3873 - Normal
03/21/2026 11 PM PDT 14.78 3846 - Normal
03/22/2026 12 AM PDT 14.77 3833 - Normal
03/22/2026 01 AM PDT 14.75 3806 - Normal
03/22/2026 02 AM PDT 14.74 3793 - Normal
03/22/2026 03 AM PDT 14.72 3766 - Normal
03/22/2026 04 AM PDT 14.71 3753 - Normal
03/22/2026 05 AM PDT 14.70 3740 - 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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