KLAMATH RIVER - SEIAD VALLEY (SEIC1)
Latitude: 41.85º NLongitude: 123.23º WElevation: 1320 Feet
Location: Siskiyou County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Dec 26 2025 at 1:21 PM PSTNext Issuance: Dec 27 2025 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:  12/26/2025 at 01:21 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/22/2025 at 05:00 AM PST
# Maximum Observed Stage:                       9.48 Feet
# Maximum Observed Flow:                        12396 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/26/2025 at 02:00 PM PST
# Maximum Forecast Stage:                       6.79 Feet
# Maximum Forecast Flow:                        6750 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/21/2025 01 PM PST            7.07           7250                        Normal
  12/21/2025 02 PM PST            7.50           8056         +              Normal
  12/21/2025 03 PM PST            7.85           8748         +              Normal
  12/21/2025 04 PM PST            8.08           9219         +              Normal
  12/21/2025 05 PM PST            8.24           9556         +              Normal
  12/21/2025 06 PM PST            8.37           9834         +              Normal
  12/21/2025 07 PM PST            8.53          10183         +              Normal
  12/21/2025 08 PM PST            8.69          10539         +              Normal
  12/21/2025 09 PM PST            8.83          10855         +              Normal
  12/21/2025 10 PM PST            8.98          11201         +              Normal
  12/21/2025 11 PM PST            9.16          11623         +              Normal
  12/22/2025 12 AM PST            9.29          11934         +              Normal
  12/22/2025 01 AM PST            9.36          12103         +              Normal
  12/22/2025 02 AM PST            9.40          12200         +              Normal
  12/22/2025 03 AM PST            9.44          12298         +              Normal
  12/22/2025 04 AM PST            9.46          12347         +              Normal
  12/22/2025 05 AM PST            9.48          12396         +              Normal
  12/22/2025 06 AM PST            9.45          12322         -              Normal
  12/22/2025 07 AM PST            9.41          12224         -              Normal
  12/22/2025 08 AM PST            9.41          12224         0              Normal
  12/22/2025 09 AM PST            9.30          11958         -              Normal
  12/22/2025 10 AM PST            9.28          11910         -              Normal
  12/22/2025 11 AM PST            9.11          11505         -              Normal
  12/22/2025 12 PM PST            9.05          11364         -              Normal
  12/22/2025 01 PM PST            9.02          11294         -              Normal
  12/22/2025 02 PM PST            9.01          11271         -              Normal
  12/22/2025 03 PM PST            9.04          11341         +              Normal
  12/22/2025 04 PM PST            9.06          11387         +              Normal
  12/22/2025 05 PM PST            8.99          11224         -              Normal
  12/22/2025 06 PM PST            8.97          11178         -              Normal
  12/22/2025 07 PM PST            8.84          10878         -              Normal
  12/22/2025 08 PM PST            8.84          10878         0              Normal
  12/22/2025 09 PM PST            8.58          10293         -              Normal
  12/22/2025 10 PM PST            8.51          10139         -              Normal
  12/22/2025 11 PM PST            8.35           9791         -              Normal
  12/23/2025 12 AM PST            8.14           9345         -              Normal
  12/23/2025 01 AM PST            7.97           8992         -              Normal
  12/23/2025 02 AM PST            7.95           8951         -              Normal
  12/23/2025 03 AM PST            7.73           8507         -              Normal
  12/23/2025 04 AM PST            7.66           8368         -              Normal
  12/23/2025 05 AM PST            7.48           8017         -              Normal
  12/23/2025 06 AM PST            7.44           7941         -              Normal
  12/23/2025 07 AM PST            7.25           7581         -              Normal
  12/23/2025 08 AM PST            7.16           7415         -              Normal
  12/23/2025 09 AM PST            7.02           7159         -              Normal
  12/23/2025 10 AM PST            7.07           7250         +              Normal
  12/23/2025 11 AM PST            6.92           6980         -              Normal
  12/23/2025 12 PM PST            6.83           6821         -              Normal
  12/23/2025 01 PM PST            6.78           6733         -              Normal
  12/23/2025 02 PM PST            6.72           6629         -              Normal
  12/23/2025 03 PM PST            6.75           6681         +              Normal
  12/23/2025 04 PM PST            6.69           6577         -              Normal
  12/23/2025 05 PM PST            6.58           6389         -              Normal
  12/23/2025 06 PM PST            6.56           6355         -              Normal
  12/23/2025 07 PM PST            6.46           6187         -              Normal
  12/23/2025 08 PM PST            6.47           6204         +              Normal
  12/23/2025 09 PM PST            6.35           6006         -              Normal
  12/23/2025 10 PM PST            6.33           5973         -              Normal
  12/23/2025 11 PM PST            6.36           6022         +              Normal
  12/24/2025 12 AM PST            6.39           6071         +              Normal
  12/24/2025 01 AM PST            6.36           6022         -              Normal
  12/24/2025 02 AM PST            6.43           6137         +              Normal
  12/24/2025 03 AM PST            6.48           6221         +              Normal
  12/24/2025 04 AM PST            6.51           6271         +              Normal
  12/24/2025 05 AM PST            6.45           6171         -              Normal
  12/24/2025 06 AM PST            6.50           6254         +              Normal
  12/24/2025 07 AM PST            6.55           6338         +              Normal
  12/24/2025 08 AM PST            6.53           6304         -              Normal
  12/24/2025 09 AM PST            6.53           6304         0              Normal
  12/24/2025 10 AM PST            6.62           6457         +              Normal
  12/24/2025 11 AM PST            6.74           6663         +              Normal
  12/24/2025 12 PM PST            6.66           6525         -              Normal
  12/24/2025 01 PM PST            6.65           6508         -              Normal
  12/24/2025 02 PM PST            6.71           6611         +              Normal
  12/24/2025 03 PM PST            6.67           6542         -              Normal
  12/24/2025 04 PM PST            6.68           6560         +              Normal
  12/24/2025 05 PM PST            6.76           6698         +              Normal
  12/24/2025 06 PM PST            6.74           6663         -              Normal
  12/24/2025 07 PM PST            6.82           6803         +              Normal
  12/24/2025 08 PM PST            6.90           6944         +              Normal
  12/24/2025 09 PM PST            7.00           7123         +              Normal
  12/24/2025 10 PM PST            7.15           7396         +              Normal
  12/24/2025 11 PM PST            7.28           7638         +              Normal
  12/25/2025 12 AM PST            7.48           8017         +              Normal
  12/25/2025 01 AM PST            7.57           8192         +              Normal
  12/25/2025 02 AM PST            7.65           8348         +              Normal
  12/25/2025 03 AM PST            7.74           8527         +              Normal
  12/25/2025 04 AM PST            7.80           8647         +              Normal
  12/25/2025 05 AM PST            7.85           8748         +              Normal
  12/25/2025 06 AM PST            7.77           8587         -              Normal
  12/25/2025 07 AM PST            7.74           8527         -              Normal
  12/25/2025 08 AM PST            7.81           8667         +              Normal
  12/25/2025 09 AM PST            7.69           8427         -              Normal
  12/25/2025 10 AM PST            7.68           8408         -              Normal
  12/25/2025 11 AM PST            7.56           8172         -              Normal
  12/25/2025 12 PM PST            7.56           8172         0              Normal
  12/25/2025 01 PM PST            7.40           7864         -              Normal
  12/25/2025 02 PM PST            7.31           7694         -              Normal
  12/25/2025 03 PM PST            7.24           7563         -              Normal
  12/25/2025 04 PM PST            7.21           7507         -              Normal
  12/25/2025 05 PM PST            7.14           7378         -              Normal
  12/25/2025 06 PM PST            7.09           7286         -              Normal
  12/25/2025 07 PM PST            7.03           7177         -              Normal
  12/25/2025 08 PM PST            7.10           7305         +              Normal
  12/25/2025 09 PM PST            7.05           7213         -              Normal
  12/25/2025 10 PM PST            7.08           7268         +              Normal
  12/25/2025 11 PM PST            7.09           7286         +              Normal
  12/26/2025 12 AM PST            7.12           7341         +              Normal
  12/26/2025 01 AM PST            7.19           7470         +              Normal
  12/26/2025 02 AM PST            7.21           7507         +              Normal
  12/26/2025 03 AM PST            7.17           7433         -              Normal
  12/26/2025 04 AM PST            7.13           7359         -              Normal
  12/26/2025 05 AM PST            7.12           7341         -              Normal
  12/26/2025 06 AM PST            7.07           7250         -              Normal
  12/26/2025 07 AM PST            7.02           7159         -              Normal
  12/26/2025 08 AM PST            6.99           7105         -              Normal
  12/26/2025 09 AM PST            6.95           7033         -              Normal
  12/26/2025 10 AM PST            6.89           6926         -              Normal
  12/26/2025 11 AM PST            6.87           6891         -              Normal
  12/26/2025 12 PM PST            6.85           6856         -              Normal
  12/26/2025 01 PM PST            6.82           6803         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/26/2025 02 PM PST            6.79           6750                        Normal
  12/26/2025 03 PM PST            6.77           6715         -              Normal
  12/26/2025 04 PM PST            6.75           6681         -              Normal
  12/26/2025 05 PM PST            6.73           6646         -              Normal
  12/26/2025 06 PM PST            6.71           6611         -              Normal
  12/26/2025 07 PM PST            6.69           6577         -              Normal
  12/26/2025 08 PM PST            6.67           6542         -              Normal
  12/26/2025 09 PM PST            6.64           6491         -              Normal
  12/26/2025 10 PM PST            6.62           6457         -              Normal
  12/26/2025 11 PM PST            6.58           6389         -              Normal
  12/27/2025 12 AM PST            6.55           6338         -              Normal
  12/27/2025 01 AM PST            6.51           6271         -              Normal
  12/27/2025 02 AM PST            6.47           6204         -              Normal
  12/27/2025 03 AM PST            6.44           6154         -              Normal
  12/27/2025 04 AM PST            6.42           6121         -              Normal
  12/27/2025 05 AM PST            6.39           6071         -              Normal
  12/27/2025 06 AM PST            6.37           6038         -              Normal
  12/27/2025 07 AM PST            6.35           6006         -              Normal
  12/27/2025 08 AM PST            6.33           5973         -              Normal
  12/27/2025 09 AM PST            6.31           5940         -              Normal
  12/27/2025 10 AM PST            6.29           5908         -              Normal
  12/27/2025 11 AM PST            6.27           5876         -              Normal
  12/27/2025 12 PM PST            6.25           5843         -              Normal
  12/27/2025 01 PM PST            6.23           5811         -              Normal
  12/27/2025 02 PM PST            6.21           5779         -              Normal
  12/27/2025 03 PM PST            6.19           5747         -              Normal
  12/27/2025 04 PM PST            6.16           5699         -              Normal
  12/27/2025 05 PM PST            6.14           5667         -              Normal
  12/27/2025 06 PM PST            6.11           5620         -              Normal
  12/27/2025 07 PM PST            6.08           5573         -              Normal
  12/27/2025 08 PM PST            6.06           5541         -              Normal
  12/27/2025 09 PM PST            6.03           5495         -              Normal
  12/27/2025 10 PM PST            6.00           5448         -              Normal
  12/27/2025 11 PM PST            5.97           5402         -              Normal
  12/28/2025 12 AM PST            5.94           5355         -              Normal
  12/28/2025 01 AM PST            5.91           5309         -              Normal
  12/28/2025 02 AM PST            5.88           5264         -              Normal
  12/28/2025 03 AM PST            5.85           5218         -              Normal
  12/28/2025 04 AM PST            5.82           5173         -              Normal
  12/28/2025 05 AM PST            5.79           5128         -              Normal
  12/28/2025 06 AM PST            5.77           5098         -              Normal
  12/28/2025 07 AM PST            5.74           5053         -              Normal
  12/28/2025 08 AM PST            5.71           5009         -              Normal
  12/28/2025 09 AM PST            5.68           4965         -              Normal
  12/28/2025 10 AM PST            5.66           4935         -              Normal
  12/28/2025 11 AM PST            5.63           4891         -              Normal
  12/28/2025 12 PM PST            5.61           4862         -              Normal
  12/28/2025 01 PM PST            5.58           4819         -              Normal
  12/28/2025 02 PM PST            5.56           4790         -              Normal
  12/28/2025 03 PM PST            5.53           4747         -              Normal
  12/28/2025 04 PM PST            5.51           4718         -              Normal
  12/28/2025 05 PM PST            5.49           4689         -              Normal
  12/28/2025 06 PM PST            5.46           4647         -              Normal
  12/28/2025 07 PM PST            5.44           4618         -              Normal
  12/28/2025 08 PM PST            5.42           4590         -              Normal
  12/28/2025 09 PM PST            5.40           4562         -              Normal
  12/28/2025 10 PM PST            5.38           4534         -              Normal
  12/28/2025 11 PM PST            5.36           4506         -              Normal
  12/29/2025 12 AM PST            5.34           4478         -              Normal
  12/29/2025 01 AM PST            5.32           4451         -              Normal
  12/29/2025 02 AM PST            5.30           4423         -              Normal
  12/29/2025 03 AM PST            5.28           4395         -              Normal
  12/29/2025 04 AM PST            5.26           4368         -              Normal
  12/29/2025 05 AM PST            5.25           4354         -              Normal
  12/29/2025 06 AM PST            5.23           4327         -              Normal
  12/29/2025 07 AM PST            5.21           4300         -              Normal
  12/29/2025 08 AM PST            5.19           4273         -              Normal
  12/29/2025 09 AM PST            5.18           4259         -              Normal
  12/29/2025 10 AM PST            5.16           4232         -              Normal
  12/29/2025 11 AM PST            5.14           4205         -              Normal
  12/29/2025 12 PM PST            5.13           4192         -              Normal
  12/29/2025 01 PM PST            5.11           4165         -              Normal
  12/29/2025 02 PM PST            5.10           4152         -              Normal
  12/29/2025 03 PM PST            5.08           4125         -              Normal
  12/29/2025 04 PM PST            5.07           4112         -              Normal
  12/29/2025 05 PM PST            5.05           4086         -              Normal
  12/29/2025 06 PM PST            5.04           4072         -              Normal
  12/29/2025 07 PM PST            5.02           4046         -              Normal
  12/29/2025 08 PM PST            5.01           4033         -              Normal
  12/29/2025 09 PM PST            5.00           4020         -              Normal
  12/29/2025 10 PM PST            4.98           3994         -              Normal
  12/29/2025 11 PM PST            4.97           3981         -              Normal
  12/30/2025 12 AM PST            4.96           3968         -              Normal
  12/30/2025 01 AM PST            4.94           3942         -              Normal
  12/30/2025 02 AM PST            4.93           3929         -              Normal
  12/30/2025 03 AM PST            4.92           3916         -              Normal
  12/30/2025 04 AM PST            4.90           3890         -              Normal
  12/30/2025 05 AM PST            4.89           3878         -              Normal
  12/30/2025 06 AM PST            4.88           3865         -              Normal
  12/30/2025 07 AM PST            4.87           3852         -              Normal
  12/30/2025 08 AM PST            4.85           3827         -              Normal
  12/30/2025 09 AM PST            4.84           3814         -              Normal
  12/30/2025 10 AM PST            4.83           3801         -              Normal
  12/30/2025 11 AM PST            4.82           3789         -              Normal
  12/30/2025 12 PM PST            4.81           3776         -              Normal
  12/30/2025 01 PM PST            4.79           3751         -              Normal
  12/30/2025 02 PM PST            4.78           3738         -              Normal
  12/30/2025 03 PM PST            4.77           3726         -              Normal
  12/30/2025 04 PM PST            4.76           3713         -              Normal
  12/30/2025 05 PM PST            4.75           3701         -              Normal
  12/30/2025 06 PM PST            4.74           3688         -              Normal
  12/30/2025 07 PM PST            4.73           3676         -              Normal
  12/30/2025 08 PM PST            4.72           3663         -              Normal
  12/30/2025 09 PM PST            4.71           3651         -              Normal
  12/30/2025 10 PM PST            4.70           3639         -              Normal
  12/30/2025 11 PM PST            4.69           3626         -              Normal
  12/31/2025 12 AM PST            4.68           3614         -              Normal
  12/31/2025 01 AM PST            4.67           3602         -              Normal
  12/31/2025 02 AM PST            4.66           3589         -              Normal
  12/31/2025 03 AM PST            4.65           3577         -              Normal
  12/31/2025 04 AM PST            4.64           3565         -              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.