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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: | May 15 2026 at 7:16 AM PDT | Next Issuance: | May 16 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: 05/15/2026 at 07:17 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/10/2026 at 08:00 PM PDT
# Maximum Observed Stage: 14.11 Feet
# Maximum Observed Flow: 3005 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/15/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 13.75 Feet
# Maximum Forecast Flow: 2598 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/10/2026 07 AM PDT 14.11 3005 Normal
05/10/2026 08 AM PDT 14.11 3005 0 Normal
05/10/2026 09 AM PDT 14.11 3005 0 Normal
05/10/2026 10 AM PDT 14.11 3005 0 Normal
05/10/2026 11 AM PDT 14.08 2970 - Normal
05/10/2026 12 PM PDT 14.09 2982 + Normal
05/10/2026 01 PM PDT 14.09 2982 0 Normal
05/10/2026 02 PM PDT 14.09 2982 0 Normal
05/10/2026 03 PM PDT 14.09 2982 0 Normal
05/10/2026 04 PM PDT 14.09 2982 0 Normal
05/10/2026 05 PM PDT 14.09 2982 0 Normal
05/10/2026 06 PM PDT 14.11 3005 + Normal
05/10/2026 07 PM PDT 14.11 3005 0 Normal
05/10/2026 08 PM PDT 14.11 3005 0 Normal
05/10/2026 09 PM PDT 14.09 2982 - Normal
05/10/2026 10 PM PDT 14.09 2982 0 Normal
05/10/2026 11 PM PDT 14.08 2970 - Normal
05/11/2026 12 AM PDT 14.09 2982 + Normal
05/11/2026 01 AM PDT 14.07 2958 - Normal
05/11/2026 02 AM PDT 14.07 2958 0 Normal
05/11/2026 03 AM PDT 14.04 2924 - Normal
05/11/2026 04 AM PDT 14.05 2935 + Normal
05/11/2026 05 AM PDT 14.05 2935 0 Normal
05/11/2026 06 AM PDT 14.03 2912 - Normal
05/11/2026 07 AM PDT 14.02 2901 - Normal
05/11/2026 08 AM PDT 14.01 2889 - Normal
05/11/2026 09 AM PDT 14.01 2889 0 Normal
05/11/2026 10 AM PDT 14.01 2889 0 Normal
05/11/2026 11 AM PDT 14.01 2889 0 Normal
05/11/2026 12 PM PDT 14.01 2889 0 Normal
05/11/2026 01 PM PDT 13.99 2866 - Normal
05/11/2026 02 PM PDT 13.99 2866 0 Normal
05/11/2026 03 PM PDT 13.99 2866 0 Normal
05/11/2026 04 PM PDT 14.01 2889 + Normal
05/11/2026 05 PM PDT 14.02 2901 + Normal
05/11/2026 06 PM PDT 14.03 2912 + Normal
05/11/2026 07 PM PDT 14.02 2901 - Normal
05/11/2026 08 PM PDT 14.02 2901 0 Normal
05/11/2026 09 PM PDT 14.03 2912 + Normal
05/11/2026 10 PM PDT 14.01 2889 - Normal
05/11/2026 11 PM PDT 14.00 2878 - Normal
05/12/2026 12 AM PDT 14.01 2889 + Normal
05/12/2026 01 AM PDT 14.01 2889 0 Normal
05/12/2026 02 AM PDT 14.02 2901 + Normal
05/12/2026 03 AM PDT 14.00 2878 - Normal
05/12/2026 04 AM PDT 14.00 2878 0 Normal
05/12/2026 05 AM PDT 13.99 2866 - Normal
05/12/2026 06 AM PDT 14.00 2878 + Normal
05/12/2026 07 AM PDT 13.97 2843 - Normal
05/12/2026 08 AM PDT 13.98 2855 + Normal
05/12/2026 09 AM PDT 13.97 2843 - Normal
05/12/2026 10 AM PDT 13.96 2832 - Normal
05/12/2026 11 AM PDT 13.98 2855 + Normal
05/12/2026 12 PM PDT 13.97 2843 - Normal
05/12/2026 01 PM PDT 13.97 2843 0 Normal
05/12/2026 02 PM PDT 13.97 2843 0 Normal
05/12/2026 03 PM PDT 13.98 2855 + Normal
05/12/2026 04 PM PDT 13.99 2866 + Normal
05/12/2026 05 PM PDT 13.99 2866 0 Normal
05/12/2026 06 PM PDT 14.00 2878 + Normal
05/12/2026 07 PM PDT 13.99 2866 - Normal
05/12/2026 08 PM PDT 14.00 2878 + Normal
05/12/2026 09 PM PDT 14.00 2878 0 Normal
05/12/2026 10 PM PDT 14.01 2889 + Normal
05/12/2026 11 PM PDT 14.00 2878 - Normal
05/13/2026 12 AM PDT 13.99 2866 - Normal
05/13/2026 01 AM PDT 13.96 2832 - Normal
05/13/2026 02 AM PDT 13.95 2820 - Normal
05/13/2026 03 AM PDT 13.94 2809 - Normal
05/13/2026 04 AM PDT 13.94 2809 0 Normal
05/13/2026 05 AM PDT 13.93 2798 - Normal
05/13/2026 06 AM PDT 13.92 2786 - Normal
05/13/2026 07 AM PDT 13.92 2786 0 Normal
05/13/2026 08 AM PDT 13.91 2775 - Normal
05/13/2026 09 AM PDT 13.91 2775 0 Normal
05/13/2026 10 AM PDT 13.90 2764 - Normal
05/13/2026 11 AM PDT 13.89 2753 - Normal
05/13/2026 12 PM PDT 13.89 2753 0 Normal
05/13/2026 01 PM PDT 13.88 2742 - Normal
05/13/2026 02 PM PDT 13.89 2753 + Normal
05/13/2026 03 PM PDT 13.91 2775 + Normal
05/13/2026 04 PM PDT 13.92 2786 + Normal
05/13/2026 05 PM PDT 13.93 2798 + Normal
05/13/2026 06 PM PDT 13.92 2786 - Normal
05/13/2026 07 PM PDT 13.92 2786 0 Normal
05/13/2026 08 PM PDT 13.92 2786 0 Normal
05/13/2026 09 PM PDT 13.93 2798 + Normal
05/13/2026 10 PM PDT 13.91 2775 - Normal
05/13/2026 11 PM PDT 13.92 2786 + Normal
05/14/2026 12 AM PDT 13.91 2775 - Normal
05/14/2026 01 AM PDT 13.90 2764 - Normal
05/14/2026 02 AM PDT 13.90 2764 0 Normal
05/14/2026 03 AM PDT 13.90 2764 0 Normal
05/14/2026 04 AM PDT 13.87 2730 - Normal
05/14/2026 05 AM PDT 13.88 2742 + Normal
05/14/2026 06 AM PDT 13.87 2730 - Normal
05/14/2026 07 AM PDT 13.86 2719 - Normal
05/14/2026 08 AM PDT 13.84 2697 - Normal
05/14/2026 09 AM PDT 13.84 2697 0 Normal
05/14/2026 10 AM PDT 13.84 2697 0 Normal
05/14/2026 11 AM PDT 13.84 2697 0 Normal
05/14/2026 12 PM PDT 13.83 2686 - Normal
05/14/2026 01 PM PDT 13.83 2686 0 Normal
05/14/2026 02 PM PDT 13.83 2686 0 Normal
05/14/2026 03 PM PDT 13.83 2686 0 Normal
05/14/2026 04 PM PDT 13.81 2664 - Normal
05/14/2026 05 PM PDT 13.83 2686 + Normal
05/14/2026 06 PM PDT 13.80 2653 - Normal
05/14/2026 07 PM PDT 13.82 2675 + Normal
05/14/2026 08 PM PDT 13.80 2653 - Normal
05/14/2026 09 PM PDT 13.80 2653 0 Normal
05/14/2026 10 PM PDT 13.79 2642 - Normal
05/14/2026 11 PM PDT 13.78 2631 - Normal
05/15/2026 12 AM PDT 13.77 2620 - Normal
05/15/2026 01 AM PDT 13.77 2620 0 Normal
05/15/2026 02 AM PDT 13.77 2620 0 Normal
05/15/2026 03 AM PDT 13.77 2620 0 Normal
05/15/2026 04 AM PDT 13.76 2609 - Normal
05/15/2026 05 AM PDT 13.76 2609 0 Normal
05/15/2026 06 AM PDT 13.75 2598 - Normal
05/15/2026 07 AM PDT 13.75 2598 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/15/2026 08 AM PDT 13.75 2598 Normal
05/15/2026 09 AM PDT 13.75 2598 0 Normal
05/15/2026 10 AM PDT 13.75 2598 0 Normal
05/15/2026 11 AM PDT 13.74 2587 - Normal
05/15/2026 12 PM PDT 13.74 2587 0 Normal
05/15/2026 01 PM PDT 13.74 2587 0 Normal
05/15/2026 02 PM PDT 13.74 2587 0 Normal
05/15/2026 03 PM PDT 13.73 2576 - Normal
05/15/2026 04 PM PDT 13.73 2576 0 Normal
05/15/2026 05 PM PDT 13.73 2576 0 Normal
05/15/2026 06 PM PDT 13.73 2576 0 Normal
05/15/2026 07 PM PDT 13.73 2576 0 Normal
05/15/2026 08 PM PDT 13.73 2576 0 Normal
05/15/2026 09 PM PDT 13.74 2587 + Normal
05/15/2026 10 PM PDT 13.74 2587 0 Normal
05/15/2026 11 PM PDT 13.73 2576 - Normal
05/16/2026 12 AM PDT 13.73 2576 0 Normal
05/16/2026 01 AM PDT 13.73 2576 0 Normal
05/16/2026 02 AM PDT 13.73 2576 0 Normal
05/16/2026 03 AM PDT 13.73 2576 0 Normal
05/16/2026 04 AM PDT 13.73 2576 0 Normal
05/16/2026 05 AM PDT 13.73 2576 0 Normal
05/16/2026 06 AM PDT 13.73 2576 0 Normal
05/16/2026 07 AM PDT 13.73 2576 0 Normal
05/16/2026 08 AM PDT 13.73 2576 0 Normal
05/16/2026 09 AM PDT 13.73 2576 0 Normal
05/16/2026 10 AM PDT 13.73 2576 0 Normal
05/16/2026 11 AM PDT 13.73 2576 0 Normal
05/16/2026 12 PM PDT 13.73 2576 0 Normal
05/16/2026 01 PM PDT 13.72 2566 - Normal
05/16/2026 02 PM PDT 13.72 2566 0 Normal
05/16/2026 03 PM PDT 13.72 2566 0 Normal
05/16/2026 04 PM PDT 13.72 2566 0 Normal
05/16/2026 05 PM PDT 13.72 2566 0 Normal
05/16/2026 06 PM PDT 13.72 2566 0 Normal
05/16/2026 07 PM PDT 13.72 2566 0 Normal
05/16/2026 08 PM PDT 13.72 2566 0 Normal
05/16/2026 09 PM PDT 13.72 2566 0 Normal
05/16/2026 10 PM PDT 13.72 2566 0 Normal
05/16/2026 11 PM PDT 13.72 2566 0 Normal
05/17/2026 12 AM PDT 13.72 2566 0 Normal
05/17/2026 01 AM PDT 13.71 2555 - Normal
05/17/2026 02 AM PDT 13.71 2555 0 Normal
05/17/2026 03 AM PDT 13.71 2555 0 Normal
05/17/2026 04 AM PDT 13.71 2555 0 Normal
05/17/2026 05 AM PDT 13.71 2555 0 Normal
05/17/2026 06 AM PDT 13.71 2555 0 Normal
05/17/2026 07 AM PDT 13.71 2555 0 Normal
05/17/2026 08 AM PDT 13.71 2555 0 Normal
05/17/2026 09 AM PDT 13.71 2555 0 Normal
05/17/2026 10 AM PDT 13.71 2555 0 Normal
05/17/2026 11 AM PDT 13.71 2555 0 Normal
05/17/2026 12 PM PDT 13.71 2555 0 Normal
05/17/2026 01 PM PDT 13.70 2544 - Normal
05/17/2026 02 PM PDT 13.70 2544 0 Normal
05/17/2026 03 PM PDT 13.70 2544 0 Normal
05/17/2026 04 PM PDT 13.70 2544 0 Normal
05/17/2026 05 PM PDT 13.70 2544 0 Normal
05/17/2026 06 PM PDT 13.70 2544 0 Normal
05/17/2026 07 PM PDT 13.70 2544 0 Normal
05/17/2026 08 PM PDT 13.70 2544 0 Normal
05/17/2026 09 PM PDT 13.70 2544 0 Normal
05/17/2026 10 PM PDT 13.70 2544 0 Normal
05/17/2026 11 PM PDT 13.70 2544 0 Normal
05/18/2026 12 AM PDT 13.70 2544 0 Normal
05/18/2026 01 AM PDT 13.69 2533 - Normal
05/18/2026 02 AM PDT 13.69 2533 0 Normal
05/18/2026 03 AM PDT 13.69 2533 0 Normal
05/18/2026 04 AM PDT 13.69 2533 0 Normal
05/18/2026 05 AM PDT 13.69 2533 0 Normal
05/18/2026 06 AM PDT 13.69 2533 0 Normal
05/18/2026 07 AM PDT 13.69 2533 0 Normal
05/18/2026 08 AM PDT 13.69 2533 0 Normal
05/18/2026 09 AM PDT 13.69 2533 0 Normal
05/18/2026 10 AM PDT 13.69 2533 0 Normal
05/18/2026 11 AM PDT 13.69 2533 0 Normal
05/18/2026 12 PM PDT 13.69 2533 0 Normal
05/18/2026 01 PM PDT 13.68 2523 - Normal
05/18/2026 02 PM PDT 13.68 2523 0 Normal
05/18/2026 03 PM PDT 13.68 2523 0 Normal
05/18/2026 04 PM PDT 13.68 2523 0 Normal
05/18/2026 05 PM PDT 13.68 2523 0 Normal
05/18/2026 06 PM PDT 13.68 2523 0 Normal
05/18/2026 07 PM PDT 13.68 2523 0 Normal
05/18/2026 08 PM PDT 13.68 2523 0 Normal
05/18/2026 09 PM PDT 13.68 2523 0 Normal
05/18/2026 10 PM PDT 13.68 2523 0 Normal
05/18/2026 11 PM PDT 13.68 2523 0 Normal
05/19/2026 12 AM PDT 13.68 2523 0 Normal
05/19/2026 01 AM PDT 13.67 2512 - Normal
05/19/2026 02 AM PDT 13.67 2512 0 Normal
05/19/2026 03 AM PDT 13.67 2512 0 Normal
05/19/2026 04 AM PDT 13.67 2512 0 Normal
05/19/2026 05 AM PDT 13.67 2512 0 Normal
05/19/2026 06 AM PDT 13.67 2512 0 Normal
05/19/2026 07 AM PDT 13.67 2512 0 Normal
05/19/2026 08 AM PDT 13.67 2512 0 Normal
05/19/2026 09 AM PDT 13.67 2512 0 Normal
05/19/2026 10 AM PDT 13.67 2512 0 Normal
05/19/2026 11 AM PDT 13.67 2512 0 Normal
05/19/2026 12 PM PDT 13.66 2501 - Normal
05/19/2026 01 PM PDT 13.66 2501 0 Normal
05/19/2026 02 PM PDT 13.66 2501 0 Normal
05/19/2026 03 PM PDT 13.66 2501 0 Normal
05/19/2026 04 PM PDT 13.66 2501 0 Normal
05/19/2026 05 PM PDT 13.66 2501 0 Normal
05/19/2026 06 PM PDT 13.66 2501 0 Normal
05/19/2026 07 PM PDT 13.66 2501 0 Normal
05/19/2026 08 PM PDT 13.66 2501 0 Normal
05/19/2026 09 PM PDT 13.66 2501 0 Normal
05/19/2026 10 PM PDT 13.66 2501 0 Normal
05/19/2026 11 PM PDT 13.66 2501 0 Normal
05/20/2026 12 AM PDT 13.65 2491 - Normal
05/20/2026 01 AM PDT 13.65 2491 0 Normal
05/20/2026 02 AM PDT 13.65 2491 0 Normal
05/20/2026 03 AM PDT 13.65 2491 0 Normal
05/20/2026 04 AM PDT 13.65 2491 0 Normal
05/20/2026 05 AM PDT 13.65 2491 0 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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