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

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KLAMATH RIVER - SEIAD VALLEY (SEIC1)
Latitude: 41.85º NLongitude: 123.23º WElevation: 1320 FeetForecast Type: Official Location
Location: Siskiyou County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Mar 06 2026 at 12:46 PM PSTNext Issuance: Mar 07 2026 at 9:00 AM PST
Action/Monitor: 13.0 FeetMinor Flood: 15.0 FeetModerate Flood: 20.0 FeetMajor Flood: 28.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Klamath River - Seiad Valley (SEIC1)
#
# File Generation Time:  03/06/2026 at 12:47 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/01/2026 at 12:00 PM PST
# Maximum Observed Stage:                       6.28 Feet
# Maximum Observed Flow:                        5892 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/09/2026 at 01:00 AM PDT
# Maximum Forecast Stage:                       4.76 Feet
# Maximum Forecast Flow:                        3713 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/01/2026 12 PM PST            6.28           5892                        Normal
  03/01/2026 01 PM PST            6.26           5859         -              Normal
  03/01/2026 02 PM PST            6.24           5827         -              Normal
  03/01/2026 03 PM PST            6.23           5811         -              Normal
  03/01/2026 04 PM PST            6.22           5795         -              Normal
  03/01/2026 05 PM PST            6.21           5779         -              Normal
  03/01/2026 06 PM PST            6.19           5747         -              Normal
  03/01/2026 07 PM PST            6.20           5763         +              Normal
  03/01/2026 08 PM PST            6.18           5731         -              Normal
  03/01/2026 09 PM PST            6.15           5683         -              Normal
  03/01/2026 10 PM PST            6.13           5652         -              Normal
  03/01/2026 11 PM PST            6.14           5667         +              Normal
  03/02/2026 12 AM PST            6.13           5652         -              Normal
  03/02/2026 01 AM PST            6.12           5636         -              Normal
  03/02/2026 02 AM PST            6.10           5604         -              Normal
  03/02/2026 03 AM PST            6.10           5604         0              Normal
  03/02/2026 04 AM PST            6.10           5604         0              Normal
  03/02/2026 05 AM PST            6.10           5604         0              Normal
  03/02/2026 06 AM PST            6.12           5636         +              Normal
  03/02/2026 07 AM PST            6.14           5667         +              Normal
  03/02/2026 08 AM PST            6.14           5667         0              Normal
  03/02/2026 09 AM PST            6.14           5667         0              Normal
  03/02/2026 10 AM PST            6.13           5652         -              Normal
  03/02/2026 11 AM PST            6.12           5636         -              Normal
  03/02/2026 12 PM PST            6.09           5588         -              Normal
  03/02/2026 01 PM PST            6.06           5541         -              Normal
  03/02/2026 02 PM PST            6.04           5510         -              Normal
  03/02/2026 03 PM PST            6.01           5463         -              Normal
  03/02/2026 04 PM PST            6.00           5448         -              Normal
  03/02/2026 05 PM PST            5.98           5417         -              Normal
  03/02/2026 06 PM PST            5.93           5340         -              Normal
  03/02/2026 07 PM PST            5.92           5325         -              Normal
  03/02/2026 08 PM PST            5.90           5294         -              Normal
  03/02/2026 09 PM PST            5.88           5264         -              Normal
  03/02/2026 10 PM PST            5.83           5188         -              Normal
  03/02/2026 11 PM PST            5.82           5173         -              Normal
  03/03/2026 12 AM PST            5.79           5128         -              Normal
  03/03/2026 01 AM PST            5.78           5113         -              Normal
  03/03/2026 02 AM PST            5.76           5083         -              Normal
  03/03/2026 03 AM PST            5.74           5053         -              Normal
  03/03/2026 04 AM PST            5.73           5038         -              Normal
  03/03/2026 05 AM PST            5.69           4979         -              Normal
  03/03/2026 06 AM PST            5.68           4965         -              Normal
  03/03/2026 07 AM PST            5.65           4920         -              Normal
  03/03/2026 08 AM PST            5.62           4877         -              Normal
  03/03/2026 09 AM PST            5.61           4862         -              Normal
  03/03/2026 10 AM PST            5.59           4833         -              Normal
  03/03/2026 11 AM PST            5.55           4775         -              Normal
  03/03/2026 12 PM PST            5.54           4761         -              Normal
  03/03/2026 01 PM PST            5.52           4732         -              Normal
  03/03/2026 02 PM PST            5.49           4689         -              Normal
  03/03/2026 03 PM PST            5.46           4647         -              Normal
  03/03/2026 04 PM PST            5.45           4633         -              Normal
  03/03/2026 05 PM PST            5.45           4633         0              Normal
  03/03/2026 06 PM PST            5.41           4576         -              Normal
  03/03/2026 07 PM PST            5.38           4534         -              Normal
  03/03/2026 08 PM PST            5.36           4506         -              Normal
  03/03/2026 09 PM PST            5.34           4478         -              Normal
  03/03/2026 10 PM PST            5.34           4478         0              Normal
  03/03/2026 11 PM PST            5.33           4464         -              Normal
  03/04/2026 12 AM PST            5.32           4451         -              Normal
  03/04/2026 01 AM PST            5.30           4423         -              Normal
  03/04/2026 02 AM PST            5.29           4409         -              Normal
  03/04/2026 03 AM PST            5.28           4395         -              Normal
  03/04/2026 04 AM PST            5.27           4382         -              Normal
  03/04/2026 05 AM PST            5.28           4395         +              Normal
  03/04/2026 06 AM PST            5.26           4368         -              Normal
  03/04/2026 07 AM PST            5.25           4354         -              Normal
  03/04/2026 08 AM PST            5.22           4313         -              Normal
  03/04/2026 09 AM PST            5.23           4327         +              Normal
  03/04/2026 10 AM PST            5.23           4327         0              Normal
  03/04/2026 11 AM PST            5.21           4300         -              Normal
  03/04/2026 12 PM PST            5.20           4286         -              Normal
  03/04/2026 01 PM PST            5.18           4259         -              Normal
  03/04/2026 02 PM PST            5.14           4205         -              Normal
  03/04/2026 03 PM PST            5.12           4179         -              Normal
  03/04/2026 04 PM PST            5.11           4165         -              Normal
  03/04/2026 05 PM PST            5.11           4165         0              Normal
  03/04/2026 06 PM PST            5.07           4112         -              Normal
  03/04/2026 07 PM PST            5.07           4112         0              Normal
  03/04/2026 08 PM PST            5.05           4086         -              Normal
  03/04/2026 09 PM PST            5.05           4086         0              Normal
  03/04/2026 10 PM PST            5.03           4059         -              Normal
  03/04/2026 11 PM PST            5.03           4059         0              Normal
  03/05/2026 12 AM PST            5.03           4059         0              Normal
  03/05/2026 01 AM PST            5.02           4046         -              Normal
  03/05/2026 02 AM PST            5.01           4033         -              Normal
  03/05/2026 03 AM PST            5.01           4033         0              Normal
  03/05/2026 04 AM PST            4.99           4007         -              Normal
  03/05/2026 05 AM PST            4.98           3994         -              Normal
  03/05/2026 06 AM PST            4.97           3981         -              Normal
  03/05/2026 07 AM PST            4.96           3968         -              Normal
  03/05/2026 08 AM PST            4.95           3955         -              Normal
  03/05/2026 09 AM PST            4.92           3916         -              Normal
  03/05/2026 10 AM PST            4.93           3929         +              Normal
  03/05/2026 11 AM PST            4.92           3916         -              Normal
  03/05/2026 12 PM PST            4.93           3929         +              Normal
  03/05/2026 01 PM PST            4.93           3929         0              Normal
  03/05/2026 02 PM PST            4.91           3903         -              Normal
  03/05/2026 03 PM PST            4.92           3916         +              Normal
  03/05/2026 04 PM PST            4.92           3916         0              Normal
  03/05/2026 05 PM PST            4.92           3916         0              Normal
  03/05/2026 06 PM PST            4.91           3903         -              Normal
  03/05/2026 07 PM PST            4.89           3878         -              Normal
  03/05/2026 08 PM PST            4.88           3865         -              Normal
  03/05/2026 09 PM PST            4.88           3865         0              Normal
  03/05/2026 10 PM PST            4.87           3852         -              Normal
  03/05/2026 11 PM PST            4.86           3839         -              Normal
  03/06/2026 12 AM PST            4.85           3827         -              Normal
  03/06/2026 01 AM PST            4.83           3801         -              Normal
  03/06/2026 02 AM PST            4.83           3801         0              Normal
  03/06/2026 03 AM PST            4.83           3801         0              Normal
  03/06/2026 04 AM PST            4.81           3776         -              Normal
  03/06/2026 05 AM PST            4.81           3776         0              Normal
  03/06/2026 06 AM PST            4.80           3763         -              Normal
  03/06/2026 07 AM PST            4.79           3751         -              Normal
  03/06/2026 08 AM PST            4.78           3738         -              Normal
  03/06/2026 09 AM PST            4.76           3713         -              Normal
  03/06/2026 10 AM PST            4.75           3701         -              Normal
  03/06/2026 11 AM PST            4.74           3688         -              Normal
  03/06/2026 12 PM PST            4.72           3663         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/06/2026 01 PM PST            4.71           3651                        Normal
  03/06/2026 02 PM PST            4.70           3639         -              Normal
  03/06/2026 03 PM PST            4.70           3639         0              Normal
  03/06/2026 04 PM PST            4.69           3626         -              Normal
  03/06/2026 05 PM PST            4.69           3626         0              Normal
  03/06/2026 06 PM PST            4.68           3614         -              Normal
  03/06/2026 07 PM PST            4.68           3614         0              Normal
  03/06/2026 08 PM PST            4.67           3602         -              Normal
  03/06/2026 09 PM PST            4.67           3602         0              Normal
  03/06/2026 10 PM PST            4.66           3589         -              Normal
  03/06/2026 11 PM PST            4.67           3602         +              Normal
  03/07/2026 12 AM PST            4.67           3602         0              Normal
  03/07/2026 01 AM PST            4.67           3602         0              Normal
  03/07/2026 02 AM PST            4.68           3614         +              Normal
  03/07/2026 03 AM PST            4.68           3614         0              Normal
  03/07/2026 04 AM PST            4.68           3614         0              Normal
  03/07/2026 05 AM PST            4.69           3626         +              Normal
  03/07/2026 06 AM PST            4.69           3626         0              Normal
  03/07/2026 07 AM PST            4.69           3626         0              Normal
  03/07/2026 08 AM PST            4.69           3626         0              Normal
  03/07/2026 09 AM PST            4.69           3626         0              Normal
  03/07/2026 10 AM PST            4.70           3639         +              Normal
  03/07/2026 11 AM PST            4.70           3639         0              Normal
  03/07/2026 12 PM PST            4.70           3639         0              Normal
  03/07/2026 01 PM PST            4.70           3639         0              Normal
  03/07/2026 02 PM PST            4.70           3639         0              Normal
  03/07/2026 03 PM PST            4.69           3626         -              Normal
  03/07/2026 04 PM PST            4.69           3626         0              Normal
  03/07/2026 05 PM PST            4.69           3626         0              Normal
  03/07/2026 06 PM PST            4.69           3626         0              Normal
  03/07/2026 07 PM PST            4.69           3626         0              Normal
  03/07/2026 08 PM PST            4.69           3626         0              Normal
  03/07/2026 09 PM PST            4.69           3626         0              Normal
  03/07/2026 10 PM PST            4.70           3639         +              Normal
  03/07/2026 11 PM PST            4.70           3639         0              Normal
  03/08/2026 12 AM PST            4.70           3639         0              Normal
  03/08/2026 01 AM PST            4.71           3651         +              Normal
  03/08/2026 03 AM PDT            4.71           3651         0              Normal
  03/08/2026 04 AM PDT            4.72           3663         +              Normal
  03/08/2026 05 AM PDT            4.72           3663         0              Normal
  03/08/2026 06 AM PDT            4.73           3676         +              Normal
  03/08/2026 07 AM PDT            4.73           3676         0              Normal
  03/08/2026 08 AM PDT            4.73           3676         0              Normal
  03/08/2026 09 AM PDT            4.74           3688         +              Normal
  03/08/2026 10 AM PDT            4.74           3688         0              Normal
  03/08/2026 11 AM PDT            4.74           3688         0              Normal
  03/08/2026 12 PM PDT            4.74           3688         0              Normal
  03/08/2026 01 PM PDT            4.74           3688         0              Normal
  03/08/2026 02 PM PDT            4.74           3688         0              Normal
  03/08/2026 03 PM PDT            4.74           3688         0              Normal
  03/08/2026 04 PM PDT            4.74           3688         0              Normal
  03/08/2026 05 PM PDT            4.74           3688         0              Normal
  03/08/2026 06 PM PDT            4.74           3688         0              Normal
  03/08/2026 07 PM PDT            4.74           3688         0              Normal
  03/08/2026 08 PM PDT            4.74           3688         0              Normal
  03/08/2026 09 PM PDT            4.74           3688         0              Normal
  03/08/2026 10 PM PDT            4.75           3701         +              Normal
  03/08/2026 11 PM PDT            4.75           3701         0              Normal
  03/09/2026 12 AM PDT            4.75           3701         0              Normal
  03/09/2026 01 AM PDT            4.76           3713         +              Normal
  03/09/2026 02 AM PDT            4.76           3713         0              Normal
  03/09/2026 03 AM PDT            4.76           3713         0              Normal
  03/09/2026 04 AM PDT            4.76           3713         0              Normal
  03/09/2026 05 AM PDT            4.76           3713         0              Normal
  03/09/2026 06 AM PDT            4.76           3713         0              Normal
  03/09/2026 07 AM PDT            4.76           3713         0              Normal
  03/09/2026 08 AM PDT            4.76           3713         0              Normal
  03/09/2026 09 AM PDT            4.76           3713         0              Normal
  03/09/2026 10 AM PDT            4.76           3713         0              Normal
  03/09/2026 11 AM PDT            4.75           3701         -              Normal
  03/09/2026 12 PM PDT            4.75           3701         0              Normal
  03/09/2026 01 PM PDT            4.74           3688         -              Normal
  03/09/2026 02 PM PDT            4.74           3688         0              Normal
  03/09/2026 03 PM PDT            4.73           3676         -              Normal
  03/09/2026 04 PM PDT            4.72           3663         -              Normal
  03/09/2026 05 PM PDT            4.72           3663         0              Normal
  03/09/2026 06 PM PDT            4.71           3651         -              Normal
  03/09/2026 07 PM PDT            4.71           3651         0              Normal
  03/09/2026 08 PM PDT            4.70           3639         -              Normal
  03/09/2026 09 PM PDT            4.69           3626         -              Normal
  03/09/2026 10 PM PDT            4.69           3626         0              Normal
  03/09/2026 11 PM PDT            4.68           3614         -              Normal
  03/10/2026 12 AM PDT            4.67           3602         -              Normal
  03/10/2026 01 AM PDT            4.67           3602         0              Normal
  03/10/2026 02 AM PDT            4.67           3602         0              Normal
  03/10/2026 03 AM PDT            4.66           3589         -              Normal
  03/10/2026 04 AM PDT            4.65           3577         -              Normal
  03/10/2026 05 AM PDT            4.65           3577         0              Normal
  03/10/2026 06 AM PDT            4.64           3565         -              Normal
  03/10/2026 07 AM PDT            4.63           3553         -              Normal
  03/10/2026 08 AM PDT            4.63           3553         0              Normal
  03/10/2026 09 AM PDT            4.62           3540         -              Normal
  03/10/2026 10 AM PDT            4.61           3528         -              Normal
  03/10/2026 11 AM PDT            4.60           3516         -              Normal
  03/10/2026 12 PM PDT            4.59           3504         -              Normal
  03/10/2026 01 PM PDT            4.58           3492         -              Normal
  03/10/2026 02 PM PDT            4.57           3480         -              Normal
  03/10/2026 03 PM PDT            4.56           3468         -              Normal
  03/10/2026 04 PM PDT            4.55           3456         -              Normal
  03/10/2026 05 PM PDT            4.54           3444         -              Normal
  03/10/2026 06 PM PDT            4.53           3432         -              Normal
  03/10/2026 07 PM PDT            4.53           3432         0              Normal
  03/10/2026 08 PM PDT            4.52           3420         -              Normal
  03/10/2026 09 PM PDT            4.51           3408         -              Normal
  03/10/2026 10 PM PDT            4.50           3396         -              Normal
  03/10/2026 11 PM PDT            4.49           3384         -              Normal
  03/11/2026 12 AM PDT            4.48           3372         -              Normal
  03/11/2026 01 AM PDT            4.47           3360         -              Normal
  03/11/2026 02 AM PDT            4.47           3360         0              Normal
  03/11/2026 03 AM PDT            4.46           3349         -              Normal
  03/11/2026 04 AM PDT            4.45           3337         -              Normal
  03/11/2026 05 AM PDT            4.45           3337         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.