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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 29 2026 at 8:00 AM PDT | Next Issuance: | Sep 30 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: 09/29/2026 at 08:00 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 09/24/2026 at 08:00 AM PDT
# Maximum Observed Stage: 11.63 Feet
# Maximum Observed Flow: 883 cfs
#
# Earliest Date & Time of Maximum Forecast: 09/29/2026 at 01:00 PM PDT
# Maximum Forecast Stage: 11.34 Feet
# Maximum Forecast Flow: 714 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
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
09/25/2026 07 AM PDT 11.36 725 0 Normal
09/25/2026 08 AM PDT 11.35 719 - Normal
09/25/2026 09 AM PDT 11.36 725 + 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 11.37 730 + Normal
09/25/2026 02 PM PDT 11.37 730 0 Normal
09/25/2026 03 PM PDT 11.36 725 - Normal
09/25/2026 04 PM PDT 11.36 725 0 Normal
09/25/2026 05 PM PDT 11.36 725 0 Normal
09/25/2026 06 PM PDT 11.35 719 - Normal
09/25/2026 07 PM PDT 11.35 719 0 Normal
09/25/2026 08 PM PDT 11.34 714 - Normal
09/25/2026 09 PM PDT 11.34 714 0 Normal
09/25/2026 10 PM PDT 11.34 714 0 Normal
09/25/2026 11 PM PDT 11.33 708 - Normal
09/26/2026 12 AM PDT 11.33 708 0 Normal
09/26/2026 01 AM PDT 11.33 708 0 Normal
09/26/2026 02 AM PDT 11.33 708 0 Normal
09/26/2026 03 AM PDT 11.33 708 0 Normal
09/26/2026 04 AM PDT 11.33 708 0 Normal
09/26/2026 05 AM PDT 11.32 703 - Normal
09/26/2026 06 AM PDT 11.32 703 0 Normal
09/26/2026 07 AM PDT 11.32 703 0 Normal
09/26/2026 08 AM PDT 11.33 708 + Normal
09/26/2026 09 AM PDT 11.33 708 0 Normal
09/26/2026 10 AM PDT 11.34 714 + 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 11.33 708 - Normal
09/26/2026 02 PM PDT 11.34 714 + 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 11.33 708 - Normal
09/26/2026 07 PM PDT 11.33 708 0 Normal
09/26/2026 08 PM PDT 11.33 708 0 Normal
09/26/2026 09 PM PDT 11.33 708 0 Normal
09/26/2026 10 PM PDT 11.32 703 - Normal
09/26/2026 11 PM PDT 11.33 708 + Normal
09/27/2026 12 AM PDT 11.32 703 - Normal
09/27/2026 01 AM PDT 11.33 708 + Normal
09/27/2026 02 AM PDT 11.33 708 0 Normal
09/27/2026 03 AM PDT 11.33 708 0 Normal
09/27/2026 04 AM PDT 11.32 703 - Normal
09/27/2026 05 AM PDT 11.33 708 + 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 11.34 714 + Normal
09/27/2026 10 AM PDT 11.34 714 0 Normal
09/27/2026 11 AM PDT 11.34 714 0 Normal
09/27/2026 12 PM PDT 11.34 714 0 Normal
09/27/2026 01 PM PDT 11.35 719 + Normal
09/27/2026 02 PM PDT 11.35 719 0 Normal
09/27/2026 03 PM PDT 11.35 719 0 Normal
09/27/2026 04 PM PDT 11.35 719 0 Normal
09/27/2026 05 PM PDT 11.35 719 0 Normal
09/27/2026 06 PM PDT 11.35 719 0 Normal
09/27/2026 07 PM PDT 11.35 719 0 Normal
09/27/2026 08 PM PDT 11.34 714 - Normal
09/27/2026 09 PM PDT 11.34 714 0 Normal
09/27/2026 10 PM PDT 11.34 714 0 Normal
09/27/2026 11 PM PDT 11.33 708 - 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 11.32 703 - Normal
09/28/2026 03 AM PDT 11.33 708 + 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 11.34 714 + Normal
09/28/2026 07 AM PDT 11.33 708 - Normal
09/28/2026 08 AM PDT 11.34 714 + Normal
09/28/2026 09 AM PDT 11.33 708 - Normal
09/28/2026 10 AM PDT 11.34 714 + Normal
09/28/2026 11 AM PDT 11.34 714 0 Normal
09/28/2026 12 PM PDT 11.34 714 0 Normal
09/28/2026 01 PM PDT 11.34 714 0 Normal
09/28/2026 02 PM PDT 11.34 714 0 Normal
09/28/2026 03 PM PDT 11.34 714 0 Normal
09/28/2026 04 PM PDT 11.35 719 + Normal
09/28/2026 05 PM PDT 11.35 719 0 Normal
09/28/2026 06 PM PDT 11.34 714 - Normal
09/28/2026 07 PM PDT 11.34 714 0 Normal
09/28/2026 08 PM PDT 11.34 714 0 Normal
09/28/2026 09 PM PDT 11.34 714 0 Normal
09/28/2026 10 PM PDT 11.34 714 0 Normal
09/28/2026 11 PM PDT 11.33 708 - Normal
09/29/2026 12 AM PDT 11.33 708 0 Normal
09/29/2026 01 AM PDT 11.32 703 - Normal
09/29/2026 02 AM PDT 11.33 708 + Normal
09/29/2026 03 AM PDT 11.33 708 0 Normal
09/29/2026 04 AM PDT 11.32 703 - Normal
09/29/2026 05 AM PDT 11.33 708 + Normal
09/29/2026 06 AM PDT 11.32 703 - Normal
09/29/2026 07 AM PDT 11.32 703 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
09/29/2026 08 AM PDT 11.32 703 Normal
09/29/2026 09 AM PDT 11.33 708 + Normal
09/29/2026 10 AM PDT 11.33 708 0 Normal
09/29/2026 11 AM PDT 11.33 708 0 Normal
09/29/2026 12 PM PDT 11.33 708 0 Normal
09/29/2026 01 PM PDT 11.34 714 + Normal
09/29/2026 02 PM PDT 11.34 714 0 Normal
09/29/2026 03 PM PDT 11.33 708 - Normal
09/29/2026 04 PM PDT 11.33 708 0 Normal
09/29/2026 05 PM PDT 11.33 708 0 Normal
09/29/2026 06 PM PDT 11.33 708 0 Normal
09/29/2026 07 PM PDT 11.33 708 0 Normal
09/29/2026 08 PM PDT 11.33 708 0 Normal
09/29/2026 09 PM PDT 11.33 708 0 Normal
09/29/2026 10 PM PDT 11.32 703 - 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
09/30/2026 06 AM PDT 11.32 703 0 Normal
09/30/2026 07 AM PDT 11.32 703 0 Normal
09/30/2026 08 AM PDT 11.32 703 0 Normal
09/30/2026 09 AM PDT 11.32 703 0 Normal
09/30/2026 10 AM PDT 11.32 703 0 Normal
09/30/2026 11 AM PDT 11.32 703 0 Normal
09/30/2026 12 PM PDT 11.32 703 0 Normal
09/30/2026 01 PM PDT 11.32 703 0 Normal
09/30/2026 02 PM PDT 11.32 703 0 Normal
09/30/2026 03 PM PDT 11.32 703 0 Normal
09/30/2026 04 PM PDT 11.32 703 0 Normal
09/30/2026 05 PM PDT 11.32 703 0 Normal
09/30/2026 06 PM PDT 11.32 703 0 Normal
09/30/2026 07 PM PDT 11.32 703 0 Normal
09/30/2026 08 PM PDT 11.32 703 0 Normal
09/30/2026 09 PM PDT 11.32 703 0 Normal
09/30/2026 10 PM PDT 11.32 703 0 Normal
09/30/2026 11 PM PDT 11.32 703 0 Normal
10/01/2026 12 AM PDT 11.32 703 0 Normal
10/01/2026 01 AM PDT 11.32 703 0 Normal
10/01/2026 02 AM PDT 11.32 703 0 Normal
10/01/2026 03 AM PDT 11.32 703 0 Normal
10/01/2026 04 AM PDT 11.32 703 0 Normal
10/01/2026 05 AM PDT 11.32 703 0 Normal
10/01/2026 06 AM PDT 11.32 703 0 Normal
10/01/2026 07 AM PDT 11.32 703 0 Normal
10/01/2026 08 AM PDT 11.32 703 0 Normal
10/01/2026 09 AM PDT 11.32 703 0 Normal
10/01/2026 10 AM PDT 11.32 703 0 Normal
10/01/2026 11 AM PDT 11.32 703 0 Normal
10/01/2026 12 PM PDT 11.32 703 0 Normal
10/01/2026 01 PM PDT 11.32 703 0 Normal
10/01/2026 02 PM PDT 11.32 703 0 Normal
10/01/2026 03 PM PDT 11.32 703 0 Normal
10/01/2026 04 PM PDT 11.32 703 0 Normal
10/01/2026 05 PM PDT 11.32 703 0 Normal
10/01/2026 06 PM PDT 11.32 703 0 Normal
10/01/2026 07 PM PDT 11.32 703 0 Normal
10/01/2026 08 PM PDT 11.32 703 0 Normal
10/01/2026 09 PM PDT 11.32 703 0 Normal
10/01/2026 10 PM PDT 11.32 703 0 Normal
10/01/2026 11 PM PDT 11.32 703 0 Normal
10/02/2026 12 AM PDT 11.32 703 0 Normal
10/02/2026 01 AM PDT 11.32 703 0 Normal
10/02/2026 02 AM PDT 11.32 703 0 Normal
10/02/2026 03 AM PDT 11.32 703 0 Normal
10/02/2026 04 AM PDT 11.32 703 0 Normal
10/02/2026 05 AM PDT 11.32 703 0 Normal
10/02/2026 06 AM PDT 11.32 703 0 Normal
10/02/2026 07 AM PDT 11.32 703 0 Normal
10/02/2026 08 AM PDT 11.32 703 0 Normal
10/02/2026 09 AM PDT 11.31 697 - Normal
10/02/2026 10 AM PDT 11.31 697 0 Normal
10/02/2026 11 AM PDT 11.31 697 0 Normal
10/02/2026 12 PM PDT 11.31 697 0 Normal
10/02/2026 01 PM PDT 11.31 697 0 Normal
10/02/2026 02 PM PDT 11.31 697 0 Normal
10/02/2026 03 PM PDT 11.31 697 0 Normal
10/02/2026 04 PM PDT 11.31 697 0 Normal
10/02/2026 05 PM PDT 11.31 697 0 Normal
10/02/2026 06 PM PDT 11.31 697 0 Normal
10/02/2026 07 PM PDT 11.31 697 0 Normal
10/02/2026 08 PM PDT 11.31 697 0 Normal
10/02/2026 09 PM PDT 11.31 697 0 Normal
10/02/2026 10 PM PDT 11.31 697 0 Normal
10/02/2026 11 PM PDT 11.31 697 0 Normal
10/03/2026 12 AM PDT 11.31 697 0 Normal
10/03/2026 01 AM PDT 11.31 697 0 Normal
10/03/2026 02 AM PDT 11.31 697 0 Normal
10/03/2026 03 AM PDT 11.31 697 0 Normal
10/03/2026 04 AM PDT 11.31 697 0 Normal
10/03/2026 05 AM PDT 11.31 697 0 Normal
10/03/2026 06 AM PDT 11.31 697 0 Normal
10/03/2026 07 AM PDT 11.31 697 0 Normal
10/03/2026 08 AM PDT 11.31 697 0 Normal
10/03/2026 09 AM PDT 11.31 697 0 Normal
10/03/2026 10 AM PDT 11.31 697 0 Normal
10/03/2026 11 AM PDT 11.31 697 0 Normal
10/03/2026 12 PM PDT 11.31 697 0 Normal
10/03/2026 01 PM PDT 11.31 697 0 Normal
10/03/2026 02 PM PDT 11.31 697 0 Normal
10/03/2026 03 PM PDT 11.31 697 0 Normal
10/03/2026 04 PM PDT 11.31 697 0 Normal
10/03/2026 05 PM PDT 11.31 697 0 Normal
10/03/2026 06 PM PDT 11.31 697 0 Normal
10/03/2026 07 PM PDT 11.31 697 0 Normal
10/03/2026 08 PM PDT 11.31 697 0 Normal
10/03/2026 09 PM PDT 11.31 697 0 Normal
10/03/2026 10 PM PDT 11.31 697 0 Normal
10/03/2026 11 PM PDT 11.31 697 0 Normal
10/04/2026 12 AM PDT 11.31 697 0 Normal
10/04/2026 01 AM PDT 11.31 697 0 Normal
10/04/2026 02 AM PDT 11.31 697 0 Normal
10/04/2026 03 AM PDT 11.31 697 0 Normal
10/04/2026 04 AM PDT 11.31 697 0 Normal
10/04/2026 05 AM PDT 11.31 697 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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