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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: | Sep 25 2026 at 7:02 AM PDT | Next Issuance: | Sep 26 2026 at 9:00 AM PDT
| |
| Action: 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: 09/25/2026 at 07:03 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 09/20/2026 at 11:00 AM PDT
# Maximum Observed Stage: 12.41 Feet
# Maximum Observed Flow: 1432 cfs
#
# Earliest Date & Time of Maximum Forecast: 09/25/2026 at 07:00 AM PDT
# Maximum Forecast Stage: 11.36 Feet
# Maximum Forecast Flow: 725 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
09/20/2026 07 AM PDT 12.41 1432 Normal
09/20/2026 08 AM PDT 12.40 1424 - Normal
09/20/2026 09 AM PDT 12.40 1424 0 Normal
09/20/2026 10 AM PDT 12.40 1424 0 Normal
09/20/2026 11 AM PDT 12.41 1432 + Normal
09/20/2026 12 PM PDT 12.39 1417 - Normal
09/20/2026 01 PM PDT 12.40 1424 + Normal
09/20/2026 02 PM PDT 12.39 1417 - Normal
09/20/2026 03 PM PDT 12.39 1417 0 Normal
09/20/2026 04 PM PDT 12.38 1409 - Normal
09/20/2026 05 PM PDT 12.38 1409 0 Normal
09/20/2026 06 PM PDT 12.37 1401 - Normal
09/20/2026 07 PM PDT 12.37 1401 0 Normal
09/20/2026 08 PM PDT 12.37 1401 0 Normal
09/20/2026 09 PM PDT 12.37 1401 0 Normal
09/20/2026 10 PM PDT 12.37 1401 0 Normal
09/20/2026 11 PM PDT 12.37 1401 0 Normal
09/21/2026 12 AM PDT 12.37 1401 0 Normal
09/21/2026 01 AM PDT 12.38 1409 + Normal
09/21/2026 02 AM PDT 12.38 1409 0 Normal
09/21/2026 03 AM PDT 12.39 1417 + Normal
09/21/2026 04 AM PDT 12.39 1417 0 Normal
09/21/2026 05 AM PDT 12.40 1424 + Normal
09/21/2026 06 AM PDT 12.39 1417 - Normal
09/21/2026 07 AM PDT 12.38 1409 - Normal
09/21/2026 08 AM PDT 12.40 1424 + Normal
09/21/2026 09 AM PDT 12.39 1417 - Normal
09/21/2026 10 AM PDT 12.40 1424 + Normal
09/21/2026 11 AM PDT 12.39 1417 - Normal
09/21/2026 12 PM PDT 12.39 1417 0 Normal
09/21/2026 01 PM PDT 12.38 1409 - Normal
09/21/2026 02 PM PDT 12.38 1409 0 Normal
09/21/2026 03 PM PDT 12.38 1409 0 Normal
09/21/2026 04 PM PDT 12.38 1409 0 Normal
09/21/2026 05 PM PDT 12.37 1401 - Normal
09/21/2026 06 PM PDT 12.37 1401 0 Normal
09/21/2026 07 PM PDT 12.37 1401 0 Normal
09/21/2026 08 PM PDT 12.36 1393 - Normal
09/21/2026 09 PM PDT 12.36 1393 0 Normal
09/21/2026 10 PM PDT 12.36 1393 0 Normal
09/21/2026 11 PM PDT 12.37 1401 + Normal
09/22/2026 12 AM PDT 12.36 1393 - Normal
09/22/2026 01 AM PDT 12.36 1393 0 Normal
09/22/2026 02 AM PDT 12.37 1401 + Normal
09/22/2026 03 AM PDT 12.38 1409 + Normal
09/22/2026 04 AM PDT 12.36 1393 - Normal
09/22/2026 05 AM PDT 12.37 1401 + Normal
09/22/2026 06 AM PDT 12.38 1409 + Normal
09/22/2026 07 AM PDT 12.39 1417 + Normal
09/22/2026 08 AM PDT 12.38 1409 - Normal
09/22/2026 09 AM PDT 12.38 1409 0 Normal
09/22/2026 10 AM PDT 12.38 1409 0 Normal
09/22/2026 11 AM PDT 12.38 1409 0 Normal
09/22/2026 12 PM PDT 12.37 1401 - Normal
09/22/2026 01 PM PDT 12.38 1409 + Normal
09/22/2026 02 PM PDT 12.37 1401 - Normal
09/22/2026 03 PM PDT 12.38 1409 + Normal
09/22/2026 04 PM PDT 12.38 1409 0 Normal
09/22/2026 05 PM PDT 12.37 1401 - Normal
09/22/2026 06 PM PDT 12.36 1393 - Normal
09/22/2026 07 PM PDT 12.36 1393 0 Normal
09/22/2026 08 PM PDT 12.35 1385 - Normal
09/22/2026 09 PM PDT 12.34 1377 - Normal
09/22/2026 10 PM PDT 12.34 1377 0 Normal
09/22/2026 11 PM PDT 12.34 1377 0 Normal
09/23/2026 12 AM PDT 12.35 1385 + Normal
09/23/2026 01 AM PDT 12.35 1385 0 Normal
09/23/2026 02 AM PDT 12.33 1370 - Normal
09/23/2026 03 AM PDT 12.30 1346 - Normal
09/23/2026 04 AM PDT 12.28 1331 - Normal
09/23/2026 05 AM PDT 12.25 1308 - Normal
09/23/2026 06 AM PDT 12.24 1301 - Normal
09/23/2026 07 AM PDT 12.22 1286 - Normal
09/23/2026 08 AM PDT 12.19 1263 - Normal
09/23/2026 09 AM PDT 12.18 1256 - Normal
09/23/2026 10 AM PDT 12.17 1248 - Normal
09/23/2026 11 AM PDT 12.15 1234 - Normal
09/23/2026 12 PM PDT 12.12 1212 - Normal
09/23/2026 01 PM PDT 12.09 1190 - Normal
09/23/2026 02 PM PDT 12.07 1176 - Normal
09/23/2026 03 PM PDT 12.02 1140 - Normal
09/23/2026 04 PM PDT 11.98 1112 - Normal
09/23/2026 05 PM PDT 11.96 1098 - Normal
09/23/2026 06 PM PDT 11.92 1071 - Normal
09/23/2026 07 PM PDT 11.87 1037 - Normal
09/23/2026 08 PM PDT 11.86 1030 - Normal
09/23/2026 09 PM PDT 11.84 1017 - Normal
09/23/2026 10 PM PDT 11.82 1004 - Normal
09/23/2026 11 PM PDT 11.81 997 - Normal
09/24/2026 12 AM PDT 11.80 991 - Normal
09/24/2026 01 AM PDT 11.79 984 - Normal
09/24/2026 02 AM PDT 11.78 978 - Normal
09/24/2026 03 AM PDT 11.74 952 - Normal
09/24/2026 04 AM PDT 11.73 945 - Normal
09/24/2026 05 AM PDT 11.70 926 - Normal
09/24/2026 06 AM PDT 11.68 914 - Normal
09/24/2026 07 AM PDT 11.66 901 - Normal
09/24/2026 08 AM PDT 11.63 883 - Normal
09/24/2026 09 AM PDT 11.61 870 - Normal
09/24/2026 10 AM PDT 11.58 852 - Normal
09/24/2026 11 AM PDT 11.56 840 - Normal
09/24/2026 12 PM PDT 11.55 834 - Normal
09/24/2026 01 PM PDT 11.52 816 - Normal
09/24/2026 02 PM PDT 11.50 805 - Normal
09/24/2026 03 PM PDT 11.48 793 - Normal
09/24/2026 04 PM PDT 11.46 781 - Normal
09/24/2026 05 PM PDT 11.44 770 - Normal
09/24/2026 06 PM PDT 11.43 764 - Normal
09/24/2026 07 PM PDT 11.42 758 - Normal
09/24/2026 08 PM PDT 11.41 753 - Normal
09/24/2026 09 PM PDT 11.39 741 - Normal
09/24/2026 10 PM PDT 11.39 741 0 Normal
09/24/2026 11 PM PDT 11.38 736 - Normal
09/25/2026 12 AM PDT 11.38 736 0 Normal
09/25/2026 01 AM PDT 11.38 736 0 Normal
09/25/2026 02 AM PDT 11.37 730 - Normal
09/25/2026 03 AM PDT 11.37 730 0 Normal
09/25/2026 04 AM PDT 11.36 725 - Normal
09/25/2026 05 AM PDT 11.36 725 0 Normal
09/25/2026 06 AM PDT 11.36 725 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
09/25/2026 07 AM PDT 11.36 725 Normal
09/25/2026 08 AM PDT 11.36 725 0 Normal
09/25/2026 09 AM PDT 11.36 725 0 Normal
09/25/2026 10 AM PDT 11.36 725 0 Normal
09/25/2026 11 AM PDT 11.36 725 0 Normal
09/25/2026 12 PM PDT 11.36 725 0 Normal
09/25/2026 01 PM PDT 11.36 725 0 Normal
09/25/2026 02 PM PDT 11.35 719 - Normal
09/25/2026 03 PM PDT 11.35 719 0 Normal
09/25/2026 04 PM PDT 11.35 719 0 Normal
09/25/2026 05 PM PDT 11.35 719 0 Normal
09/25/2026 06 PM PDT 11.35 719 0 Normal
09/25/2026 07 PM PDT 11.35 719 0 Normal
09/25/2026 08 PM PDT 11.35 719 0 Normal
09/25/2026 09 PM PDT 11.35 719 0 Normal
09/25/2026 10 PM PDT 11.35 719 0 Normal
09/25/2026 11 PM PDT 11.34 714 - Normal
09/26/2026 12 AM PDT 11.34 714 0 Normal
09/26/2026 01 AM PDT 11.34 714 0 Normal
09/26/2026 02 AM PDT 11.34 714 0 Normal
09/26/2026 03 AM PDT 11.34 714 0 Normal
09/26/2026 04 AM PDT 11.34 714 0 Normal
09/26/2026 05 AM PDT 11.34 714 0 Normal
09/26/2026 06 AM PDT 11.34 714 0 Normal
09/26/2026 07 AM PDT 11.34 714 0 Normal
09/26/2026 08 AM PDT 11.34 714 0 Normal
09/26/2026 09 AM PDT 11.34 714 0 Normal
09/26/2026 10 AM PDT 11.34 714 0 Normal
09/26/2026 11 AM PDT 11.34 714 0 Normal
09/26/2026 12 PM PDT 11.34 714 0 Normal
09/26/2026 01 PM PDT 11.34 714 0 Normal
09/26/2026 02 PM PDT 11.34 714 0 Normal
09/26/2026 03 PM PDT 11.34 714 0 Normal
09/26/2026 04 PM PDT 11.34 714 0 Normal
09/26/2026 05 PM PDT 11.34 714 0 Normal
09/26/2026 06 PM PDT 11.34 714 0 Normal
09/26/2026 07 PM PDT 11.34 714 0 Normal
09/26/2026 08 PM PDT 11.34 714 0 Normal
09/26/2026 09 PM PDT 11.34 714 0 Normal
09/26/2026 10 PM PDT 11.34 714 0 Normal
09/26/2026 11 PM PDT 11.34 714 0 Normal
09/27/2026 12 AM PDT 11.34 714 0 Normal
09/27/2026 01 AM PDT 11.34 714 0 Normal
09/27/2026 02 AM PDT 11.34 714 0 Normal
09/27/2026 03 AM PDT 11.33 708 - Normal
09/27/2026 04 AM PDT 11.33 708 0 Normal
09/27/2026 05 AM PDT 11.33 708 0 Normal
09/27/2026 06 AM PDT 11.33 708 0 Normal
09/27/2026 07 AM PDT 11.33 708 0 Normal
09/27/2026 08 AM PDT 11.33 708 0 Normal
09/27/2026 09 AM PDT 11.33 708 0 Normal
09/27/2026 10 AM PDT 11.33 708 0 Normal
09/27/2026 11 AM PDT 11.33 708 0 Normal
09/27/2026 12 PM PDT 11.33 708 0 Normal
09/27/2026 01 PM PDT 11.33 708 0 Normal
09/27/2026 02 PM PDT 11.33 708 0 Normal
09/27/2026 03 PM PDT 11.33 708 0 Normal
09/27/2026 04 PM PDT 11.33 708 0 Normal
09/27/2026 05 PM PDT 11.33 708 0 Normal
09/27/2026 06 PM PDT 11.33 708 0 Normal
09/27/2026 07 PM PDT 11.33 708 0 Normal
09/27/2026 08 PM PDT 11.33 708 0 Normal
09/27/2026 09 PM PDT 11.33 708 0 Normal
09/27/2026 10 PM PDT 11.33 708 0 Normal
09/27/2026 11 PM PDT 11.33 708 0 Normal
09/28/2026 12 AM PDT 11.33 708 0 Normal
09/28/2026 01 AM PDT 11.33 708 0 Normal
09/28/2026 02 AM PDT 11.33 708 0 Normal
09/28/2026 03 AM PDT 11.33 708 0 Normal
09/28/2026 04 AM PDT 11.33 708 0 Normal
09/28/2026 05 AM PDT 11.33 708 0 Normal
09/28/2026 06 AM PDT 11.33 708 0 Normal
09/28/2026 07 AM PDT 11.33 708 0 Normal
09/28/2026 08 AM PDT 11.33 708 0 Normal
09/28/2026 09 AM PDT 11.33 708 0 Normal
09/28/2026 10 AM PDT 11.33 708 0 Normal
09/28/2026 11 AM PDT 11.33 708 0 Normal
09/28/2026 12 PM PDT 11.33 708 0 Normal
09/28/2026 01 PM PDT 11.33 708 0 Normal
09/28/2026 02 PM PDT 11.33 708 0 Normal
09/28/2026 03 PM PDT 11.33 708 0 Normal
09/28/2026 04 PM PDT 11.33 708 0 Normal
09/28/2026 05 PM PDT 11.33 708 0 Normal
09/28/2026 06 PM PDT 11.33 708 0 Normal
09/28/2026 07 PM PDT 11.33 708 0 Normal
09/28/2026 08 PM PDT 11.32 703 - Normal
09/28/2026 09 PM PDT 11.32 703 0 Normal
09/28/2026 10 PM PDT 11.32 703 0 Normal
09/28/2026 11 PM PDT 11.32 703 0 Normal
09/29/2026 12 AM PDT 11.32 703 0 Normal
09/29/2026 01 AM PDT 11.32 703 0 Normal
09/29/2026 02 AM PDT 11.32 703 0 Normal
09/29/2026 03 AM PDT 11.32 703 0 Normal
09/29/2026 04 AM PDT 11.32 703 0 Normal
09/29/2026 05 AM PDT 11.32 703 0 Normal
09/29/2026 06 AM PDT 11.32 703 0 Normal
09/29/2026 07 AM PDT 11.32 703 0 Normal
09/29/2026 08 AM PDT 11.32 703 0 Normal
09/29/2026 09 AM PDT 11.32 703 0 Normal
09/29/2026 10 AM PDT 11.32 703 0 Normal
09/29/2026 11 AM PDT 11.32 703 0 Normal
09/29/2026 12 PM PDT 11.32 703 0 Normal
09/29/2026 01 PM PDT 11.32 703 0 Normal
09/29/2026 02 PM PDT 11.32 703 0 Normal
09/29/2026 03 PM PDT 11.32 703 0 Normal
09/29/2026 04 PM PDT 11.32 703 0 Normal
09/29/2026 05 PM PDT 11.32 703 0 Normal
09/29/2026 06 PM PDT 11.32 703 0 Normal
09/29/2026 07 PM PDT 11.32 703 0 Normal
09/29/2026 08 PM PDT 11.32 703 0 Normal
09/29/2026 09 PM PDT 11.32 703 0 Normal
09/29/2026 10 PM PDT 11.32 703 0 Normal
09/29/2026 11 PM PDT 11.32 703 0 Normal
09/30/2026 12 AM PDT 11.32 703 0 Normal
09/30/2026 01 AM PDT 11.32 703 0 Normal
09/30/2026 02 AM PDT 11.32 703 0 Normal
09/30/2026 03 AM PDT 11.32 703 0 Normal
09/30/2026 04 AM PDT 11.32 703 0 Normal
09/30/2026 05 AM PDT 11.32 703 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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