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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 10 2026 at 12:44 PM PDT | Next Issuance: | Mar 11 2026 at 9:00 AM PDT
| |
| 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: 03/10/2026 at 12:44 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/05/2026 at 01:00 PM PST
# Maximum Observed Stage: 4.93 Feet
# Maximum Observed Flow: 3929 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/10/2026 at 01:00 PM PDT
# Maximum Forecast Stage: 4.25 Feet
# Maximum Forecast Flow: 3106 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
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
03/06/2026 01 PM PST 4.73 3676 + Normal
03/06/2026 02 PM PST 4.74 3688 + Normal
03/06/2026 03 PM PST 4.72 3663 - Normal
03/06/2026 04 PM PST 4.73 3676 + Normal
03/06/2026 05 PM PST 4.72 3663 - Normal
03/06/2026 06 PM PST 4.70 3639 - Normal
03/06/2026 07 PM PST 4.69 3626 - 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 4.66 3589 0 Normal
03/07/2026 12 AM PST 4.64 3565 - Normal
03/07/2026 01 AM PST 4.64 3565 0 Normal
03/07/2026 02 AM PST 4.63 3553 - Normal
03/07/2026 03 AM PST 4.63 3553 0 Normal
03/07/2026 04 AM PST 4.63 3553 0 Normal
03/07/2026 05 AM PST 4.61 3528 - Normal
03/07/2026 06 AM PST 4.60 3516 - Normal
03/07/2026 07 AM PST 4.59 3504 - Normal
03/07/2026 08 AM PST 4.59 3504 0 Normal
03/07/2026 09 AM PST 4.60 3516 + Normal
03/07/2026 10 AM PST 4.59 3504 - Normal
03/07/2026 11 AM PST 4.58 3492 - Normal
03/07/2026 12 PM PST 4.58 3492 0 Normal
03/07/2026 01 PM PST 4.57 3480 - Normal
03/07/2026 02 PM PST 4.57 3480 0 Normal
03/07/2026 03 PM PST 4.58 3492 + Normal
03/07/2026 04 PM PST 4.59 3504 + Normal
03/07/2026 05 PM PST 4.56 3468 - Normal
03/07/2026 06 PM PST 4.54 3444 - Normal
03/07/2026 07 PM PST 4.53 3432 - Normal
03/07/2026 08 PM PST 4.53 3432 0 Normal
03/07/2026 09 PM PST 4.53 3432 0 Normal
03/07/2026 10 PM PST 4.52 3420 - Normal
03/07/2026 11 PM PST 4.52 3420 0 Normal
03/08/2026 12 AM PST 4.50 3396 - Normal
03/08/2026 01 AM PST 4.51 3408 + Normal
03/08/2026 03 AM PDT 4.50 3396 - Normal
03/08/2026 04 AM PDT 4.51 3408 + Normal
03/08/2026 05 AM PDT 4.49 3384 - Normal
03/08/2026 06 AM PDT 4.49 3384 0 Normal
03/08/2026 07 AM PDT 4.48 3372 - Normal
03/08/2026 08 AM PDT 4.48 3372 0 Normal
03/08/2026 09 AM PDT 4.47 3360 - Normal
03/08/2026 10 AM PDT 4.46 3349 - Normal
03/08/2026 11 AM PDT 4.46 3349 0 Normal
03/08/2026 12 PM PDT 4.46 3349 0 Normal
03/08/2026 01 PM PDT 4.46 3349 0 Normal
03/08/2026 02 PM PDT 4.47 3360 + Normal
03/08/2026 03 PM PDT 4.46 3349 - Normal
03/08/2026 04 PM PDT 4.47 3360 + Normal
03/08/2026 05 PM PDT 4.48 3372 + Normal
03/08/2026 06 PM PDT 4.45 3337 - Normal
03/08/2026 07 PM PDT 4.44 3325 - Normal
03/08/2026 08 PM PDT 4.43 3313 - Normal
03/08/2026 09 PM PDT 4.42 3302 - Normal
03/08/2026 10 PM PDT 4.42 3302 0 Normal
03/08/2026 11 PM PDT 4.42 3302 0 Normal
03/09/2026 12 AM PDT 4.42 3302 0 Normal
03/09/2026 01 AM PDT 4.41 3290 - Normal
03/09/2026 02 AM PDT 4.40 3278 - Normal
03/09/2026 03 AM PDT 4.41 3290 + Normal
03/09/2026 04 AM PDT 4.40 3278 - Normal
03/09/2026 05 AM PDT 4.40 3278 0 Normal
03/09/2026 06 AM PDT 4.40 3278 0 Normal
03/09/2026 07 AM PDT 4.40 3278 0 Normal
03/09/2026 08 AM PDT 4.38 3255 - Normal
03/09/2026 09 AM PDT 4.38 3255 0 Normal
03/09/2026 10 AM PDT 4.38 3255 0 Normal
03/09/2026 11 AM PDT 4.37 3243 - Normal
03/09/2026 12 PM PDT 4.37 3243 0 Normal
03/09/2026 01 PM PDT 4.38 3255 + Normal
03/09/2026 02 PM PDT 4.36 3232 - Normal
03/09/2026 03 PM PDT 4.38 3255 + Normal
03/09/2026 04 PM PDT 4.38 3255 0 Normal
03/09/2026 05 PM PDT 4.40 3278 + Normal
03/09/2026 06 PM PDT 4.37 3243 - Normal
03/09/2026 07 PM PDT 4.34 3209 - Normal
03/09/2026 08 PM PDT 4.34 3209 0 Normal
03/09/2026 09 PM PDT 4.34 3209 0 Normal
03/09/2026 10 PM PDT 4.33 3197 - Normal
03/09/2026 11 PM PDT 4.33 3197 0 Normal
03/10/2026 12 AM PDT 4.31 3174 - Normal
03/10/2026 01 AM PDT 4.31 3174 0 Normal
03/10/2026 02 AM PDT 4.30 3163 - Normal
03/10/2026 03 AM PDT 4.30 3163 0 Normal
03/10/2026 04 AM PDT 4.31 3174 + Normal
03/10/2026 05 AM PDT 4.30 3163 - Normal
03/10/2026 06 AM PDT 4.29 3151 - Normal
03/10/2026 07 AM PDT 4.29 3151 0 Normal
03/10/2026 08 AM PDT 4.28 3140 - Normal
03/10/2026 09 AM PDT 4.27 3129 - Normal
03/10/2026 10 AM PDT 4.28 3140 + Normal
03/10/2026 11 AM PDT 4.26 3117 - Normal
03/10/2026 12 PM PDT 4.26 3117 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/10/2026 01 PM PDT 4.25 3106 Normal
03/10/2026 02 PM PDT 4.24 3095 - Normal
03/10/2026 03 PM PDT 4.23 3083 - Normal
03/10/2026 04 PM PDT 4.22 3072 - Normal
03/10/2026 05 PM PDT 4.21 3061 - Normal
03/10/2026 06 PM PDT 4.21 3061 0 Normal
03/10/2026 07 PM PDT 4.20 3050 - Normal
03/10/2026 08 PM PDT 4.20 3050 0 Normal
03/10/2026 09 PM PDT 4.19 3038 - Normal
03/10/2026 10 PM PDT 4.18 3027 - Normal
03/10/2026 11 PM PDT 4.18 3027 0 Normal
03/11/2026 12 AM PDT 4.17 3016 - Normal
03/11/2026 01 AM PDT 4.16 3005 - Normal
03/11/2026 02 AM PDT 4.16 3005 0 Normal
03/11/2026 03 AM PDT 4.15 2994 - Normal
03/11/2026 04 AM PDT 4.14 2983 - Normal
03/11/2026 05 AM PDT 4.13 2972 - Normal
03/11/2026 06 AM PDT 4.13 2972 0 Normal
03/11/2026 07 AM PDT 4.12 2961 - Normal
03/11/2026 08 AM PDT 4.11 2950 - Normal
03/11/2026 09 AM PDT 4.11 2950 0 Normal
03/11/2026 10 AM PDT 4.10 2939 - Normal
03/11/2026 11 AM PDT 4.09 2928 - Normal
03/11/2026 12 PM PDT 4.08 2917 - Normal
03/11/2026 01 PM PDT 4.08 2917 0 Normal
03/11/2026 02 PM PDT 4.07 2906 - Normal
03/11/2026 03 PM PDT 4.06 2895 - Normal
03/11/2026 04 PM PDT 4.06 2895 0 Normal
03/11/2026 05 PM PDT 4.05 2884 - Normal
03/11/2026 06 PM PDT 4.04 2873 - Normal
03/11/2026 07 PM PDT 4.04 2873 0 Normal
03/11/2026 08 PM PDT 4.03 2863 - Normal
03/11/2026 09 PM PDT 4.03 2863 0 Normal
03/11/2026 10 PM PDT 4.02 2852 - Normal
03/11/2026 11 PM PDT 4.02 2852 0 Normal
03/12/2026 12 AM PDT 4.01 2841 - Normal
03/12/2026 01 AM PDT 4.01 2841 0 Normal
03/12/2026 02 AM PDT 4.01 2841 0 Normal
03/12/2026 03 AM PDT 4.01 2841 0 Normal
03/12/2026 04 AM PDT 4.01 2841 0 Normal
03/12/2026 05 AM PDT 4.01 2841 0 Normal
03/12/2026 06 AM PDT 4.00 2830 - Normal
03/12/2026 07 AM PDT 4.00 2830 0 Normal
03/12/2026 08 AM PDT 4.00 2830 0 Normal
03/12/2026 09 AM PDT 4.00 2830 0 Normal
03/12/2026 10 AM PDT 4.00 2830 0 Normal
03/12/2026 11 AM PDT 4.00 2830 0 Normal
03/12/2026 12 PM PDT 4.00 2830 0 Normal
03/12/2026 01 PM PDT 4.00 2830 0 Normal
03/12/2026 02 PM PDT 4.00 2830 0 Normal
03/12/2026 03 PM PDT 3.99 2820 - Normal
03/12/2026 04 PM PDT 3.99 2820 0 Normal
03/12/2026 05 PM PDT 3.99 2820 0 Normal
03/12/2026 06 PM PDT 3.99 2820 0 Normal
03/12/2026 07 PM PDT 3.99 2820 0 Normal
03/12/2026 08 PM PDT 3.99 2820 0 Normal
03/12/2026 09 PM PDT 4.00 2830 + Normal
03/12/2026 10 PM PDT 4.00 2830 0 Normal
03/12/2026 11 PM PDT 4.00 2830 0 Normal
03/13/2026 12 AM PDT 4.01 2841 + Normal
03/13/2026 01 AM PDT 4.01 2841 0 Normal
03/13/2026 02 AM PDT 4.02 2852 + Normal
03/13/2026 03 AM PDT 4.03 2863 + Normal
03/13/2026 04 AM PDT 4.03 2863 0 Normal
03/13/2026 05 AM PDT 4.03 2863 0 Normal
03/13/2026 06 AM PDT 4.04 2873 + Normal
03/13/2026 07 AM PDT 4.04 2873 0 Normal
03/13/2026 08 AM PDT 4.04 2873 0 Normal
03/13/2026 09 AM PDT 4.04 2873 0 Normal
03/13/2026 10 AM PDT 4.04 2873 0 Normal
03/13/2026 11 AM PDT 4.04 2873 0 Normal
03/13/2026 12 PM PDT 4.04 2873 0 Normal
03/13/2026 01 PM PDT 4.04 2873 0 Normal
03/13/2026 02 PM PDT 4.04 2873 0 Normal
03/13/2026 03 PM PDT 4.03 2863 - Normal
03/13/2026 04 PM PDT 4.03 2863 0 Normal
03/13/2026 05 PM PDT 4.03 2863 0 Normal
03/13/2026 06 PM PDT 4.03 2863 0 Normal
03/13/2026 07 PM PDT 4.03 2863 0 Normal
03/13/2026 08 PM PDT 4.03 2863 0 Normal
03/13/2026 09 PM PDT 4.04 2873 + Normal
03/13/2026 10 PM PDT 4.04 2873 0 Normal
03/13/2026 11 PM PDT 4.04 2873 0 Normal
03/14/2026 12 AM PDT 4.05 2884 + Normal
03/14/2026 01 AM PDT 4.05 2884 0 Normal
03/14/2026 02 AM PDT 4.05 2884 0 Normal
03/14/2026 03 AM PDT 4.06 2895 + Normal
03/14/2026 04 AM PDT 4.06 2895 0 Normal
03/14/2026 05 AM PDT 4.06 2895 0 Normal
03/14/2026 06 AM PDT 4.06 2895 0 Normal
03/14/2026 07 AM PDT 4.06 2895 0 Normal
03/14/2026 08 AM PDT 4.06 2895 0 Normal
03/14/2026 09 AM PDT 4.06 2895 0 Normal
03/14/2026 10 AM PDT 4.06 2895 0 Normal
03/14/2026 11 AM PDT 4.06 2895 0 Normal
03/14/2026 12 PM PDT 4.06 2895 0 Normal
03/14/2026 01 PM PDT 4.06 2895 0 Normal
03/14/2026 02 PM PDT 4.06 2895 0 Normal
03/14/2026 03 PM PDT 4.06 2895 0 Normal
03/14/2026 04 PM PDT 4.06 2895 0 Normal
03/14/2026 05 PM PDT 4.06 2895 0 Normal
03/14/2026 06 PM PDT 4.06 2895 0 Normal
03/14/2026 07 PM PDT 4.06 2895 0 Normal
03/14/2026 08 PM PDT 4.06 2895 0 Normal
03/14/2026 09 PM PDT 4.06 2895 0 Normal
03/14/2026 10 PM PDT 4.06 2895 0 Normal
03/14/2026 11 PM PDT 4.06 2895 0 Normal
03/15/2026 12 AM PDT 4.06 2895 0 Normal
03/15/2026 01 AM PDT 4.06 2895 0 Normal
03/15/2026 02 AM PDT 4.06 2895 0 Normal
03/15/2026 03 AM PDT 4.06 2895 0 Normal
03/15/2026 04 AM PDT 4.06 2895 0 Normal
03/15/2026 05 AM PDT 4.06 2895 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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