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

 | 

TRINITY RIVER - ABOVE NORTH FORK TRINITY RIVER NEAR HELENA (TRNC1)
Latitude: 40.77º NLongitude: 123.11º WElevation: 1380 FeetForecast Type: Unofficial Location
Location: Trinity County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Nov 13 2026 at 7:21 AM PSTNext Issuance: Nov 13 2026 at 3:00 PM PST
Action: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Trinity River - Above NF Trinity R Nr Helena (TRNC1)
#
# File Generation Time:  11/13/2026 at 07:23 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/12/2026 at 10:00 PM PST
# Maximum Observed Stage:                       8.75 Feet
# Maximum Observed Flow:                        356 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/15/2026 at 07:00 PM PST
# Maximum Forecast Stage:                       9.41 Feet
# Maximum Forecast Flow:                        616 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  11/08/2026 07 AM PST            8.71            342                Not Applicable
  11/08/2026 08 AM PST            8.71            342         0      Not Applicable
  11/08/2026 09 AM PST            8.71            342         0      Not Applicable
  11/08/2026 10 AM PST            8.72            346         +      Not Applicable
  11/08/2026 11 AM PST            8.71            342         -      Not Applicable
  11/08/2026 12 PM PST            8.72            346         +      Not Applicable
  11/08/2026 01 PM PST            8.72            346         0      Not Applicable
  11/08/2026 02 PM PST            8.72            346         0      Not Applicable
  11/08/2026 03 PM PST            8.73            349         +      Not Applicable
  11/08/2026 04 PM PST            8.72            346         -      Not Applicable
  11/08/2026 05 PM PST            8.73            349         +      Not Applicable
  11/08/2026 06 PM PST            8.73            349         0      Not Applicable
  11/08/2026 07 PM PST            8.73            349         0      Not Applicable
  11/08/2026 08 PM PST            8.74            352         +      Not Applicable
  11/08/2026 09 PM PST            8.74            352         0      Not Applicable
  11/08/2026 10 PM PST            8.72            346         -      Not Applicable
  11/08/2026 11 PM PST            8.73            349         +      Not Applicable
  11/09/2026 12 AM PST            8.73            349         0      Not Applicable
  11/09/2026 01 AM PST            8.73            349         0      Not Applicable
  11/09/2026 02 AM PST            8.73            349         0      Not Applicable
  11/09/2026 03 AM PST            8.73            349         0      Not Applicable
  11/09/2026 04 AM PST            8.72            346         -      Not Applicable
  11/09/2026 05 AM PST            8.72            346         0      Not Applicable
  11/09/2026 06 AM PST            8.72            346         0      Not Applicable
  11/09/2026 07 AM PST            8.72            346         0      Not Applicable
  11/09/2026 08 AM PST            8.72            346         0      Not Applicable
  11/09/2026 09 AM PST            8.72            346         0      Not Applicable
  11/09/2026 10 AM PST            8.72            346         0      Not Applicable
  11/09/2026 11 AM PST            8.72            346         0      Not Applicable
  11/09/2026 12 PM PST            8.72            346         0      Not Applicable
  11/09/2026 01 PM PST            8.72            346         0      Not Applicable
  11/09/2026 02 PM PST            8.73            349         +      Not Applicable
  11/09/2026 03 PM PST            8.74            352         +      Not Applicable
  11/09/2026 04 PM PST            8.73            349         -      Not Applicable
  11/09/2026 05 PM PST            8.73            349         0      Not Applicable
  11/09/2026 06 PM PST            8.73            349         0      Not Applicable
  11/09/2026 07 PM PST            8.73            349         0      Not Applicable
  11/09/2026 08 PM PST            8.73            349         0      Not Applicable
  11/09/2026 09 PM PST            8.73            349         0      Not Applicable
  11/09/2026 10 PM PST            8.73            349         0      Not Applicable
  11/09/2026 11 PM PST            8.73            349         0      Not Applicable
  11/10/2026 12 AM PST            8.73            349         0      Not Applicable
  11/10/2026 01 AM PST            8.73            349         0      Not Applicable
  11/10/2026 02 AM PST            8.73            349         0      Not Applicable
  11/10/2026 03 AM PST            8.73            349         0      Not Applicable
  11/10/2026 04 AM PST            8.72            346         -      Not Applicable
  11/10/2026 05 AM PST            8.72            346         0      Not Applicable
  11/10/2026 06 AM PST            8.72            346         0      Not Applicable
  11/10/2026 07 AM PST            8.72            346         0      Not Applicable
  11/10/2026 08 AM PST            8.72            346         0      Not Applicable
  11/10/2026 09 AM PST            8.72            346         0      Not Applicable
  11/10/2026 10 AM PST            8.72            346         0      Not Applicable
  11/10/2026 11 AM PST            8.72            346         0      Not Applicable
  11/10/2026 12 PM PST            8.72            346         0      Not Applicable
  11/10/2026 01 PM PST            8.73            349         +      Not Applicable
  11/10/2026 02 PM PST            8.74            352         +      Not Applicable
  11/10/2026 03 PM PST            8.74            352         0      Not Applicable
  11/10/2026 04 PM PST            8.74            352         0      Not Applicable
  11/10/2026 05 PM PST            8.74            352         0      Not Applicable
  11/10/2026 06 PM PST            8.73            349         -      Not Applicable
  11/10/2026 07 PM PST            8.74            352         +      Not Applicable
  11/10/2026 08 PM PST            8.74            352         0      Not Applicable
  11/10/2026 09 PM PST            8.73            349         -      Not Applicable
  11/10/2026 10 PM PST            8.74            352         +      Not Applicable
  11/10/2026 11 PM PST            8.73            349         -      Not Applicable
  11/11/2026 12 AM PST            8.73            349         0      Not Applicable
  11/11/2026 01 AM PST            8.73            349         0      Not Applicable
  11/11/2026 02 AM PST            8.73            349         0      Not Applicable
  11/11/2026 03 AM PST            8.73            349         0      Not Applicable
  11/11/2026 04 AM PST            8.73            349         0      Not Applicable
  11/11/2026 05 AM PST            8.73            349         0      Not Applicable
  11/11/2026 06 AM PST            8.73            349         0      Not Applicable
  11/11/2026 07 AM PST            8.72            346         -      Not Applicable
  11/11/2026 08 AM PST            8.73            349         +      Not Applicable
  11/11/2026 09 AM PST            8.72            346         -      Not Applicable
  11/11/2026 10 AM PST            8.73            349         +      Not Applicable
  11/11/2026 11 AM PST            8.74            352         +      Not Applicable
  11/11/2026 12 PM PST            8.74            352         0      Not Applicable
  11/11/2026 01 PM PST            8.74            352         0      Not Applicable
  11/11/2026 02 PM PST            8.74            352         0      Not Applicable
  11/11/2026 03 PM PST            8.74            352         0      Not Applicable
  11/11/2026 04 PM PST            8.74            352         0      Not Applicable
  11/11/2026 05 PM PST            8.74            352         0      Not Applicable
  11/11/2026 06 PM PST            8.74            352         0      Not Applicable
  11/11/2026 07 PM PST            8.74            352         0      Not Applicable
  11/11/2026 08 PM PST            8.74            352         0      Not Applicable
  11/11/2026 09 PM PST            8.74            352         0      Not Applicable
  11/11/2026 10 PM PST            8.74            352         0      Not Applicable
  11/11/2026 11 PM PST            8.74            352         0      Not Applicable
  11/12/2026 12 AM PST            8.74            352         0      Not Applicable
  11/12/2026 01 AM PST            8.74            352         0      Not Applicable
  11/12/2026 02 AM PST            8.74            352         0      Not Applicable
  11/12/2026 03 AM PST            8.74            352         0      Not Applicable
  11/12/2026 04 AM PST            8.73            349         -      Not Applicable
  11/12/2026 05 AM PST            8.73            349         0      Not Applicable
  11/12/2026 06 AM PST            8.72            346         -      Not Applicable
  11/12/2026 07 AM PST            8.72            346         0      Not Applicable
  11/12/2026 08 AM PST            8.72            346         0      Not Applicable
  11/12/2026 09 AM PST            8.72            346         0      Not Applicable
  11/12/2026 10 AM PST            8.72            346         0      Not Applicable
  11/12/2026 11 AM PST            8.74            352         +      Not Applicable
  11/12/2026 12 PM PST            8.74            352         0      Not Applicable
  11/12/2026 01 PM PST            8.74            352         0      Not Applicable
  11/12/2026 02 PM PST            8.74            352         0      Not Applicable
  11/12/2026 03 PM PST            8.74            352         0      Not Applicable
  11/12/2026 04 PM PST            8.75            356         +      Not Applicable
  11/12/2026 05 PM PST            8.74            352         -      Not Applicable
  11/12/2026 06 PM PST            8.75            356         +      Not Applicable
  11/12/2026 07 PM PST            8.74            352         -      Not Applicable
  11/12/2026 08 PM PST            8.75            356         +      Not Applicable
  11/12/2026 09 PM PST            8.75            356         0      Not Applicable
  11/12/2026 10 PM PST            8.75            356         0      Not Applicable
  11/12/2026 11 PM PST            8.74            352         -      Not Applicable
  11/13/2026 12 AM PST            8.74            352         0      Not Applicable
  11/13/2026 01 AM PST            8.74            352         0      Not Applicable
  11/13/2026 02 AM PST            8.74            352         0      Not Applicable
  11/13/2026 03 AM PST            8.74            352         0      Not Applicable
  11/13/2026 04 AM PST            8.73            349         -      Not Applicable
  11/13/2026 05 AM PST            8.73            349         0      Not Applicable
  11/13/2026 06 AM PST            8.73            349         0      Not Applicable
  11/13/2026 07 AM PST            8.74            352         +      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/13/2026 08 AM PST            8.75            356                Not Applicable
  11/13/2026 09 AM PST            8.78            366         +      Not Applicable
  11/13/2026 10 AM PST            8.81            377         +      Not Applicable
  11/13/2026 11 AM PST            8.86            395         +      Not Applicable
  11/13/2026 12 PM PST            8.91            413         +      Not Applicable
  11/13/2026 01 PM PST            8.97            436         +      Not Applicable
  11/13/2026 02 PM PST            9.04            463         +      Not Applicable
  11/13/2026 03 PM PST            9.11            490         +      Not Applicable
  11/13/2026 04 PM PST            9.17            514         +      Not Applicable
  11/13/2026 05 PM PST            9.21            531         +      Not Applicable
  11/13/2026 06 PM PST            9.24            543         +      Not Applicable
  11/13/2026 07 PM PST            9.26            551         +      Not Applicable
  11/13/2026 08 PM PST            9.27            556         +      Not Applicable
  11/13/2026 09 PM PST            9.27            556         0      Not Applicable
  11/13/2026 10 PM PST            9.26            551         -      Not Applicable
  11/13/2026 11 PM PST            9.25            547         -      Not Applicable
  11/14/2026 12 AM PST            9.24            543         -      Not Applicable
  11/14/2026 01 AM PST            9.22            535         -      Not Applicable
  11/14/2026 02 AM PST            9.20            526         -      Not Applicable
  11/14/2026 03 AM PST            9.18            518         -      Not Applicable
  11/14/2026 04 AM PST            9.16            510         -      Not Applicable
  11/14/2026 05 AM PST            9.13            498         -      Not Applicable
  11/14/2026 06 AM PST            9.11            490         -      Not Applicable
  11/14/2026 07 AM PST            9.09            482         -      Not Applicable
  11/14/2026 08 AM PST            9.07            474         -      Not Applicable
  11/14/2026 09 AM PST            9.05            466         -      Not Applicable
  11/14/2026 10 AM PST            9.03            459         -      Not Applicable
  11/14/2026 11 AM PST            9.01            451         -      Not Applicable
  11/14/2026 12 PM PST            8.99            443         -      Not Applicable
  11/14/2026 01 PM PST            8.97            436         -      Not Applicable
  11/14/2026 02 PM PST            8.96            432         -      Not Applicable
  11/14/2026 03 PM PST            8.94            424         -      Not Applicable
  11/14/2026 04 PM PST            8.93            421         -      Not Applicable
  11/14/2026 05 PM PST            8.91            413         -      Not Applicable
  11/14/2026 06 PM PST            8.90            410         -      Not Applicable
  11/14/2026 07 PM PST            8.89            406         -      Not Applicable
  11/14/2026 08 PM PST            8.88            402         -      Not Applicable
  11/14/2026 09 PM PST            8.87            399         -      Not Applicable
  11/14/2026 10 PM PST            8.86            395         -      Not Applicable
  11/14/2026 11 PM PST            8.85            391         -      Not Applicable
  11/15/2026 12 AM PST            8.84            388         -      Not Applicable
  11/15/2026 01 AM PST            8.84            388         0      Not Applicable
  11/15/2026 02 AM PST            8.83            384         -      Not Applicable
  11/15/2026 03 AM PST            8.83            384         0      Not Applicable
  11/15/2026 04 AM PST            8.83            384         0      Not Applicable
  11/15/2026 05 AM PST            8.84            388         +      Not Applicable
  11/15/2026 06 AM PST            8.85            391         +      Not Applicable
  11/15/2026 07 AM PST            8.87            399         +      Not Applicable
  11/15/2026 08 AM PST            8.90            410         +      Not Applicable
  11/15/2026 09 AM PST            8.94            424         +      Not Applicable
  11/15/2026 10 AM PST            8.98            440         +      Not Applicable
  11/15/2026 11 AM PST            9.03            459         +      Not Applicable
  11/15/2026 12 PM PST            9.08            478         +      Not Applicable
  11/15/2026 01 PM PST            9.14            502         +      Not Applicable
  11/15/2026 02 PM PST            9.20            526         +      Not Applicable
  11/15/2026 03 PM PST            9.26            551         +      Not Applicable
  11/15/2026 04 PM PST            9.31            572         +      Not Applicable
  11/15/2026 05 PM PST            9.36            594         +      Not Applicable
  11/15/2026 06 PM PST            9.39            607         +      Not Applicable
  11/15/2026 07 PM PST            9.41            616         +      Not Applicable
  11/15/2026 08 PM PST            9.41            616         0      Not Applicable
  11/15/2026 09 PM PST            9.41            616         0      Not Applicable
  11/15/2026 10 PM PST            9.40            611         -      Not Applicable
  11/15/2026 11 PM PST            9.39            607         -      Not Applicable
  11/16/2026 12 AM PST            9.38            603         -      Not Applicable
  11/16/2026 01 AM PST            9.35            590         -      Not Applicable
  11/16/2026 02 AM PST            9.33            581         -      Not Applicable
  11/16/2026 03 AM PST            9.30            568         -      Not Applicable
  11/16/2026 04 AM PST            9.27            556         -      Not Applicable
  11/16/2026 05 AM PST            9.24            543         -      Not Applicable
  11/16/2026 06 AM PST            9.22            535         -      Not Applicable
  11/16/2026 07 AM PST            9.19            522         -      Not Applicable
  11/16/2026 08 AM PST            9.17            514         -      Not Applicable
  11/16/2026 09 AM PST            9.15            506         -      Not Applicable
  11/16/2026 10 AM PST            9.12            494         -      Not Applicable
  11/16/2026 11 AM PST            9.11            490         -      Not Applicable
  11/16/2026 12 PM PST            9.09            482         -      Not Applicable
  11/16/2026 01 PM PST            9.07            474         -      Not Applicable
  11/16/2026 02 PM PST            9.05            466         -      Not Applicable
  11/16/2026 03 PM PST            9.03            459         -      Not Applicable
  11/16/2026 04 PM PST            9.02            455         -      Not Applicable
  11/16/2026 05 PM PST            9.00            447         -      Not Applicable
  11/16/2026 06 PM PST            8.98            440         -      Not Applicable
  11/16/2026 07 PM PST            8.97            436         -      Not Applicable
  11/16/2026 08 PM PST            8.96            432         -      Not Applicable
  11/16/2026 09 PM PST            8.94            424         -      Not Applicable
  11/16/2026 10 PM PST            8.93            421         -      Not Applicable
  11/16/2026 11 PM PST            8.91            413         -      Not Applicable
  11/17/2026 12 AM PST            8.90            410         -      Not Applicable
  11/17/2026 01 AM PST            8.89            406         -      Not Applicable
  11/17/2026 02 AM PST            8.87            399         -      Not Applicable
  11/17/2026 03 AM PST            8.86            395         -      Not Applicable
  11/17/2026 04 AM PST            8.85            391         -      Not Applicable
  11/17/2026 05 AM PST            8.84            388         -      Not Applicable
  11/17/2026 06 AM PST            8.83            384         -      Not Applicable
  11/17/2026 07 AM PST            8.82            381         -      Not Applicable
  11/17/2026 08 AM PST            8.81            377         -      Not Applicable
  11/17/2026 09 AM PST            8.80            373         -      Not Applicable
  11/17/2026 10 AM PST            8.80            373         0      Not Applicable
  11/17/2026 11 AM PST            8.79            370         -      Not Applicable
  11/17/2026 12 PM PST            8.78            366         -      Not Applicable
  11/17/2026 01 PM PST            8.78            366         0      Not Applicable
  11/17/2026 02 PM PST            8.78            366         0      Not Applicable
  11/17/2026 03 PM PST            8.77            363         -      Not Applicable
  11/17/2026 04 PM PST            8.77            363         0      Not Applicable
  11/17/2026 05 PM PST            8.77            363         0      Not Applicable
  11/17/2026 06 PM PST            8.76            359         -      Not Applicable
  11/17/2026 07 PM PST            8.76            359         0      Not Applicable
  11/17/2026 08 PM PST            8.76            359         0      Not Applicable
  11/17/2026 09 PM PST            8.76            359         0      Not Applicable
  11/17/2026 10 PM PST            8.76            359         0      Not Applicable
  11/17/2026 11 PM PST            8.76            359         0      Not Applicable
  11/18/2026 12 AM PST            8.77            363         +      Not Applicable
  11/18/2026 01 AM PST            8.77            363         0      Not Applicable
  11/18/2026 02 AM PST            8.79            370         +      Not Applicable
  11/18/2026 03 AM PST            8.81            377         +      Not Applicable
  11/18/2026 04 AM PST            8.84            388         +      Not Applicable
#
# 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.