National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

*** IMPORTANT ***  Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.
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TRINITY RIVER - HOOPA (HOOC1)
Latitude: 41.05º NLongitude: 123.68º WElevation: 333 Feet
Location: Humboldt County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Jun 14 2025 at 7:27 AM PDTNext Issuance: Jun 15 2025 at 9:00 AM PDT
Action/Monitor: 44.0 FeetMinor Flood: 48.0 FeetModerate Flood: 52.0 FeetMajor Flood: 56.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Trinity River - Hoopa (HOOC1)
#
# File Generation Time:  06/14/2025 at 07:27 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/10/2025 at 02:00 PM PDT
# Maximum Observed Stage:                       14.17 Feet
# Maximum Observed Flow:                        3176 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/14/2025 at 08:00 AM PDT
# Maximum Forecast Stage:                       13.46 Feet
# Maximum Forecast Flow:                        2375 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/09/2025 07 AM PDT           13.86           2811                        Normal
  06/09/2025 08 AM PDT           13.87           2823         +              Normal
  06/09/2025 09 AM PDT           13.87           2823         0              Normal
  06/09/2025 10 AM PDT           13.90           2857         +              Normal
  06/09/2025 11 AM PDT           13.92           2880         +              Normal
  06/09/2025 12 PM PDT           13.94           2903         +              Normal
  06/09/2025 01 PM PDT           13.96           2926         +              Normal
  06/09/2025 02 PM PDT           13.97           2938         +              Normal
  06/09/2025 03 PM PDT           13.98           2950         +              Normal
  06/09/2025 04 PM PDT           14.00           2973         +              Normal
  06/09/2025 05 PM PDT           13.99           2961         -              Normal
  06/09/2025 06 PM PDT           14.00           2973         +              Normal
  06/09/2025 07 PM PDT           14.00           2973         0              Normal
  06/09/2025 08 PM PDT           13.99           2961         -              Normal
  06/09/2025 09 PM PDT           13.99           2961         0              Normal
  06/09/2025 10 PM PDT           13.98           2950         -              Normal
  06/09/2025 11 PM PDT           13.98           2950         0              Normal
  06/10/2025 12 AM PDT           13.96           2926         -              Normal
  06/10/2025 01 AM PDT           13.96           2926         0              Normal
  06/10/2025 02 AM PDT           13.96           2926         0              Normal
  06/10/2025 03 AM PDT           13.94           2903         -              Normal
  06/10/2025 04 AM PDT           13.92           2880         -              Normal
  06/10/2025 05 AM PDT           13.91           2869         -              Normal
  06/10/2025 06 AM PDT           13.89           2846         -              Normal
  06/10/2025 07 AM PDT           13.91           2869         +              Normal
  06/10/2025 08 AM PDT           13.92           2880         +              Normal
  06/10/2025 09 AM PDT           13.94           2903         +              Normal
  06/10/2025 10 AM PDT           14.01           2985         +              Normal
  06/10/2025 11 AM PDT           14.05           3032         +              Normal
  06/10/2025 12 PM PDT           14.09           3080         +              Normal
  06/10/2025 01 PM PDT           14.14           3140         +              Normal
  06/10/2025 02 PM PDT           14.17           3176         +              Normal
  06/10/2025 03 PM PDT           14.15           3152         -              Normal
  06/10/2025 04 PM PDT           14.15           3152         0              Normal
  06/10/2025 05 PM PDT           14.14           3140         -              Normal
  06/10/2025 06 PM PDT           14.11           3104         -              Normal
  06/10/2025 07 PM PDT           14.09           3080         -              Normal
  06/10/2025 08 PM PDT           14.07           3056         -              Normal
  06/10/2025 09 PM PDT           14.05           3032         -              Normal
  06/10/2025 10 PM PDT           14.04           3020         -              Normal
  06/10/2025 11 PM PDT           14.02           2997         -              Normal
  06/11/2025 12 AM PDT           13.98           2950         -              Normal
  06/11/2025 01 AM PDT           13.97           2938         -              Normal
  06/11/2025 02 AM PDT           13.95           2915         -              Normal
  06/11/2025 03 AM PDT           13.93           2892         -              Normal
  06/11/2025 04 AM PDT           13.89           2846         -              Normal
  06/11/2025 05 AM PDT           13.89           2846         0              Normal
  06/11/2025 06 AM PDT           13.87           2823         -              Normal
  06/11/2025 07 AM PDT           13.85           2800         -              Normal
  06/11/2025 08 AM PDT           13.85           2800         0              Normal
  06/11/2025 09 AM PDT           13.85           2800         0              Normal
  06/11/2025 10 AM PDT           13.85           2800         0              Normal
  06/11/2025 11 AM PDT           13.86           2811         +              Normal
  06/11/2025 12 PM PDT           13.88           2834         +              Normal
  06/11/2025 01 PM PDT           13.91           2869         +              Normal
  06/11/2025 02 PM PDT           13.93           2892         +              Normal
  06/11/2025 03 PM PDT           13.93           2892         0              Normal
  06/11/2025 04 PM PDT           13.93           2892         0              Normal
  06/11/2025 05 PM PDT           13.93           2892         0              Normal
  06/11/2025 06 PM PDT           13.92           2880         -              Normal
  06/11/2025 07 PM PDT           13.91           2869         -              Normal
  06/11/2025 08 PM PDT           13.90           2857         -              Normal
  06/11/2025 09 PM PDT           13.87           2823         -              Normal
  06/11/2025 10 PM PDT           13.86           2811         -              Normal
  06/11/2025 11 PM PDT           13.83           2777         -              Normal
  06/12/2025 12 AM PDT           13.81           2755         -              Normal
  06/12/2025 01 AM PDT           13.77           2710         -              Normal
  06/12/2025 02 AM PDT           13.75           2687         -              Normal
  06/12/2025 03 AM PDT           13.73           2665         -              Normal
  06/12/2025 04 AM PDT           13.70           2632         -              Normal
  06/12/2025 05 AM PDT           13.70           2632         0              Normal
  06/12/2025 06 AM PDT           13.68           2610         -              Normal
  06/12/2025 07 AM PDT           13.66           2588         -              Normal
  06/12/2025 08 AM PDT           13.64           2567         -              Normal
  06/12/2025 09 AM PDT           13.62           2545         -              Normal
  06/12/2025 10 AM PDT           13.61           2534         -              Normal
  06/12/2025 11 AM PDT           13.60           2523         -              Normal
  06/12/2025 12 PM PDT           13.59           2513         -              Normal
  06/12/2025 01 PM PDT           13.58           2502         -              Normal
  06/12/2025 02 PM PDT           13.59           2513         +              Normal
  06/12/2025 03 PM PDT           13.58           2502         -              Normal
  06/12/2025 04 PM PDT           13.59           2513         +              Normal
  06/12/2025 05 PM PDT           13.59           2513         0              Normal
  06/12/2025 06 PM PDT           13.60           2523         +              Normal
  06/12/2025 07 PM PDT           13.61           2534         +              Normal
  06/12/2025 08 PM PDT           13.59           2513         -              Normal
  06/12/2025 09 PM PDT           13.59           2513         0              Normal
  06/12/2025 10 PM PDT           13.59           2513         0              Normal
  06/12/2025 11 PM PDT           13.57           2491         -              Normal
  06/13/2025 12 AM PDT           13.58           2502         +              Normal
  06/13/2025 01 AM PDT           13.56           2480         -              Normal
  06/13/2025 02 AM PDT           13.55           2470         -              Normal
  06/13/2025 03 AM PDT           13.55           2470         0              Normal
  06/13/2025 04 AM PDT           13.54           2459         -              Normal
  06/13/2025 05 AM PDT           13.54           2459         0              Normal
  06/13/2025 06 AM PDT           13.52           2438         -              Normal
  06/13/2025 07 AM PDT           13.50           2417         -              Normal
  06/13/2025 08 AM PDT           13.51           2427         +              Normal
  06/13/2025 09 AM PDT           13.50           2417         -              Normal
  06/13/2025 10 AM PDT           13.48           2396         -              Normal
  06/13/2025 11 AM PDT           13.49           2406         +              Normal
  06/13/2025 12 PM PDT           13.48           2396         -              Normal
  06/13/2025 01 PM PDT           13.48           2396         0              Normal
  06/13/2025 02 PM PDT           13.49           2406         +              Normal
  06/13/2025 03 PM PDT           13.48           2396         -              Normal
  06/13/2025 04 PM PDT           13.50           2417         +              Normal
  06/13/2025 05 PM PDT           13.49           2406         -              Normal
  06/13/2025 06 PM PDT           13.50           2417         +              Normal
  06/13/2025 07 PM PDT           13.51           2427         +              Normal
  06/13/2025 08 PM PDT           13.52           2438         +              Normal
  06/13/2025 09 PM PDT           13.53           2449         +              Normal
  06/13/2025 10 PM PDT           13.53           2449         0              Normal
  06/13/2025 11 PM PDT           13.52           2438         -              Normal
  06/14/2025 12 AM PDT           13.51           2427         -              Normal
  06/14/2025 01 AM PDT           13.51           2427         0              Normal
  06/14/2025 02 AM PDT           13.51           2427         0              Normal
  06/14/2025 03 AM PDT           13.49           2406         -              Normal
  06/14/2025 04 AM PDT           13.49           2406         0              Normal
  06/14/2025 05 AM PDT           13.48           2396         -              Normal
  06/14/2025 06 AM PDT           13.47           2385         -              Normal
  06/14/2025 07 AM PDT           13.46           2375         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/14/2025 08 AM PDT           13.46           2375                        Normal
  06/14/2025 09 AM PDT           13.45           2365         -              Normal
  06/14/2025 10 AM PDT           13.44           2354         -              Normal
  06/14/2025 11 AM PDT           13.43           2344         -              Normal
  06/14/2025 12 PM PDT           13.42           2334         -              Normal
  06/14/2025 01 PM PDT           13.42           2334         0              Normal
  06/14/2025 02 PM PDT           13.41           2323         -              Normal
  06/14/2025 03 PM PDT           13.41           2323         0              Normal
  06/14/2025 04 PM PDT           13.40           2313         -              Normal
  06/14/2025 05 PM PDT           13.40           2313         0              Normal
  06/14/2025 06 PM PDT           13.40           2313         0              Normal
  06/14/2025 07 PM PDT           13.40           2313         0              Normal
  06/14/2025 08 PM PDT           13.40           2313         0              Normal
  06/14/2025 09 PM PDT           13.40           2313         0              Normal
  06/14/2025 10 PM PDT           13.40           2313         0              Normal
  06/14/2025 11 PM PDT           13.40           2313         0              Normal
  06/15/2025 12 AM PDT           13.40           2313         0              Normal
  06/15/2025 01 AM PDT           13.40           2313         0              Normal
  06/15/2025 02 AM PDT           13.39           2303         -              Normal
  06/15/2025 03 AM PDT           13.39           2303         0              Normal
  06/15/2025 04 AM PDT           13.38           2292         -              Normal
  06/15/2025 05 AM PDT           13.38           2292         0              Normal
  06/15/2025 06 AM PDT           13.37           2282         -              Normal
  06/15/2025 07 AM PDT           13.37           2282         0              Normal
  06/15/2025 08 AM PDT           13.36           2272         -              Normal
  06/15/2025 09 AM PDT           13.35           2262         -              Normal
  06/15/2025 10 AM PDT           13.35           2262         0              Normal
  06/15/2025 11 AM PDT           13.35           2262         0              Normal
  06/15/2025 12 PM PDT           13.34           2252         -              Normal
  06/15/2025 01 PM PDT           13.34           2252         0              Normal
  06/15/2025 02 PM PDT           13.34           2252         0              Normal
  06/15/2025 03 PM PDT           13.33           2242         -              Normal
  06/15/2025 04 PM PDT           13.33           2242         0              Normal
  06/15/2025 05 PM PDT           13.33           2242         0              Normal
  06/15/2025 06 PM PDT           13.33           2242         0              Normal
  06/15/2025 07 PM PDT           13.33           2242         0              Normal
  06/15/2025 08 PM PDT           13.33           2242         0              Normal
  06/15/2025 09 PM PDT           13.32           2232         -              Normal
  06/15/2025 10 PM PDT           13.32           2232         0              Normal
  06/15/2025 11 PM PDT           13.32           2232         0              Normal
  06/16/2025 12 AM PDT           13.32           2232         0              Normal
  06/16/2025 01 AM PDT           13.32           2232         0              Normal
  06/16/2025 02 AM PDT           13.32           2232         0              Normal
  06/16/2025 03 AM PDT           13.32           2232         0              Normal
  06/16/2025 04 AM PDT           13.32           2232         0              Normal
  06/16/2025 05 AM PDT           13.32           2232         0              Normal
  06/16/2025 06 AM PDT           13.31           2221         -              Normal
  06/16/2025 07 AM PDT           13.31           2221         0              Normal
  06/16/2025 08 AM PDT           13.31           2221         0              Normal
  06/16/2025 09 AM PDT           13.31           2221         0              Normal
  06/16/2025 10 AM PDT           13.31           2221         0              Normal
  06/16/2025 11 AM PDT           13.31           2221         0              Normal
  06/16/2025 12 PM PDT           13.31           2221         0              Normal
  06/16/2025 01 PM PDT           13.31           2221         0              Normal
  06/16/2025 02 PM PDT           13.31           2221         0              Normal
  06/16/2025 03 PM PDT           13.30           2211         -              Normal
  06/16/2025 04 PM PDT           13.30           2211         0              Normal
  06/16/2025 05 PM PDT           13.30           2211         0              Normal
  06/16/2025 06 PM PDT           13.30           2211         0              Normal
  06/16/2025 07 PM PDT           13.30           2211         0              Normal
  06/16/2025 08 PM PDT           13.30           2211         0              Normal
  06/16/2025 09 PM PDT           13.30           2211         0              Normal
  06/16/2025 10 PM PDT           13.30           2211         0              Normal
  06/16/2025 11 PM PDT           13.30           2211         0              Normal
  06/17/2025 12 AM PDT           13.29           2201         -              Normal
  06/17/2025 01 AM PDT           13.29           2201         0              Normal
  06/17/2025 02 AM PDT           13.29           2201         0              Normal
  06/17/2025 03 AM PDT           13.29           2201         0              Normal
  06/17/2025 04 AM PDT           13.29           2201         0              Normal
  06/17/2025 05 AM PDT           13.29           2201         0              Normal
  06/17/2025 06 AM PDT           13.29           2201         0              Normal
  06/17/2025 07 AM PDT           13.29           2201         0              Normal
  06/17/2025 08 AM PDT           13.29           2201         0              Normal
  06/17/2025 09 AM PDT           13.29           2201         0              Normal
  06/17/2025 10 AM PDT           13.28           2191         -              Normal
  06/17/2025 11 AM PDT           13.28           2191         0              Normal
  06/17/2025 12 PM PDT           13.28           2191         0              Normal
  06/17/2025 01 PM PDT           13.28           2191         0              Normal
  06/17/2025 02 PM PDT           13.28           2191         0              Normal
  06/17/2025 03 PM PDT           13.28           2191         0              Normal
  06/17/2025 04 PM PDT           13.28           2191         0              Normal
  06/17/2025 05 PM PDT           13.28           2191         0              Normal
  06/17/2025 06 PM PDT           13.28           2191         0              Normal
  06/17/2025 07 PM PDT           13.27           2181         -              Normal
  06/17/2025 08 PM PDT           13.27           2181         0              Normal
  06/17/2025 09 PM PDT           13.27           2181         0              Normal
  06/17/2025 10 PM PDT           13.27           2181         0              Normal
  06/17/2025 11 PM PDT           13.27           2181         0              Normal
  06/18/2025 12 AM PDT           13.27           2181         0              Normal
  06/18/2025 01 AM PDT           13.27           2181         0              Normal
  06/18/2025 02 AM PDT           13.27           2181         0              Normal
  06/18/2025 03 AM PDT           13.27           2181         0              Normal
  06/18/2025 04 AM PDT           13.26           2171         -              Normal
  06/18/2025 05 AM PDT           13.26           2171         0              Normal
  06/18/2025 06 AM PDT           13.26           2171         0              Normal
  06/18/2025 07 AM PDT           13.26           2171         0              Normal
  06/18/2025 08 AM PDT           13.26           2171         0              Normal
  06/18/2025 09 AM PDT           13.26           2171         0              Normal
  06/18/2025 10 AM PDT           13.26           2171         0              Normal
  06/18/2025 11 AM PDT           13.26           2171         0              Normal
  06/18/2025 12 PM PDT           13.26           2171         0              Normal
  06/18/2025 01 PM PDT           13.25           2161         -              Normal
  06/18/2025 02 PM PDT           13.25           2161         0              Normal
  06/18/2025 03 PM PDT           13.25           2161         0              Normal
  06/18/2025 04 PM PDT           13.25           2161         0              Normal
  06/18/2025 05 PM PDT           13.25           2161         0              Normal
  06/18/2025 06 PM PDT           13.25           2161         0              Normal
  06/18/2025 07 PM PDT           13.25           2161         0              Normal
  06/18/2025 08 PM PDT           13.25           2161         0              Normal
  06/18/2025 09 PM PDT           13.24           2152         -              Normal
  06/18/2025 10 PM PDT           13.24           2152         0              Normal
  06/18/2025 11 PM PDT           13.24           2152         0              Normal
  06/19/2025 12 AM PDT           13.24           2152         0              Normal
  06/19/2025 01 AM PDT           13.23           2142         -              Normal
  06/19/2025 02 AM PDT           13.23           2142         0              Normal
  06/19/2025 03 AM PDT           13.22           2132         -              Normal
  06/19/2025 04 AM PDT           13.21           2122         -              Normal
  06/19/2025 05 AM PDT           13.21           2122         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.