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KLAMATH RIVER - SEIAD VALLEY (SEIC1)
| Latitude: 41.85º N | Longitude: 123.23º W | Elevation: 1320 Feet | | Forecast Type: Official Location |
| Location: Siskiyou County in California | Bulletin Group: North Coast | River Group: Klamath |
| Issuance Time: | Mar 06 2026 at 12:46 PM PST | Next Issuance: | Mar 07 2026 at 9:00 AM PST
| |
| Action/Monitor: 13.0 Feet | Minor Flood: 15.0 Feet | Moderate Flood: 20.0 Feet | Major 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.
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