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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 15 2026 at 8:37 AM PDT | Next Issuance: | Mar 16 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: 03/15/2026 at 08:38 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/10/2026 at 05:00 PM PDT
# Maximum Observed Stage: 4.29 Feet
# Maximum Observed Flow: 3151 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/15/2026 at 09:00 AM PDT
# Maximum Forecast Stage: 3.89 Feet
# Maximum Forecast Flow: 2714 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
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
03/10/2026 01 PM PDT 4.26 3117 0 Normal
03/10/2026 02 PM PDT 4.26 3117 0 Normal
03/10/2026 03 PM PDT 4.26 3117 0 Normal
03/10/2026 04 PM PDT 4.28 3140 + Normal
03/10/2026 05 PM PDT 4.29 3151 + Normal
03/10/2026 06 PM PDT 4.25 3106 - Normal
03/10/2026 07 PM PDT 4.24 3095 - Normal
03/10/2026 08 PM PDT 4.22 3072 - Normal
03/10/2026 09 PM PDT 4.22 3072 0 Normal
03/10/2026 10 PM PDT 4.21 3061 - Normal
03/10/2026 11 PM PDT 4.20 3050 - Normal
03/11/2026 12 AM PDT 4.21 3061 + Normal
03/11/2026 01 AM PDT 4.20 3050 - Normal
03/11/2026 02 AM PDT 4.18 3027 - Normal
03/11/2026 03 AM PDT 4.18 3027 0 Normal
03/11/2026 04 AM PDT 4.18 3027 0 Normal
03/11/2026 05 AM PDT 4.17 3016 - Normal
03/11/2026 06 AM PDT 4.16 3005 - Normal
03/11/2026 07 AM PDT 4.16 3005 0 Normal
03/11/2026 08 AM PDT 4.15 2994 - Normal
03/11/2026 09 AM PDT 4.15 2994 0 Normal
03/11/2026 10 AM PDT 4.14 2983 - Normal
03/11/2026 11 AM PDT 4.15 2994 + Normal
03/11/2026 12 PM PDT 4.15 2994 0 Normal
03/11/2026 01 PM PDT 4.14 2983 - Normal
03/11/2026 02 PM PDT 4.15 2994 + Normal
03/11/2026 03 PM PDT 4.14 2983 - Normal
03/11/2026 04 PM PDT 4.15 2994 + Normal
03/11/2026 05 PM PDT 4.15 2994 0 Normal
03/11/2026 06 PM PDT 4.13 2972 - Normal
03/11/2026 07 PM PDT 4.11 2950 - Normal
03/11/2026 08 PM PDT 4.10 2939 - Normal
03/11/2026 09 PM PDT 4.10 2939 0 Normal
03/11/2026 10 PM PDT 4.09 2928 - Normal
03/11/2026 11 PM PDT 4.09 2928 0 Normal
03/12/2026 12 AM PDT 4.09 2928 0 Normal
03/12/2026 01 AM PDT 4.09 2928 0 Normal
03/12/2026 02 AM PDT 4.09 2928 0 Normal
03/12/2026 03 AM PDT 4.08 2917 - Normal
03/12/2026 04 AM PDT 4.06 2895 - Normal
03/12/2026 05 AM PDT 4.07 2906 + Normal
03/12/2026 06 AM PDT 4.07 2906 0 Normal
03/12/2026 07 AM PDT 4.06 2895 - Normal
03/12/2026 08 AM PDT 4.06 2895 0 Normal
03/12/2026 09 AM PDT 4.05 2884 - Normal
03/12/2026 10 AM PDT 4.05 2884 0 Normal
03/12/2026 11 AM PDT 4.06 2895 + Normal
03/12/2026 12 PM PDT 4.05 2884 - Normal
03/12/2026 01 PM PDT 4.06 2895 + Normal
03/12/2026 02 PM PDT 4.06 2895 0 Normal
03/12/2026 03 PM PDT 4.07 2906 + Normal
03/12/2026 04 PM PDT 4.09 2928 + Normal
03/12/2026 05 PM PDT 4.07 2906 - Normal
03/12/2026 06 PM PDT 4.04 2873 - Normal
03/12/2026 07 PM PDT 4.04 2873 0 Normal
03/12/2026 08 PM PDT 4.02 2852 - Normal
03/12/2026 09 PM PDT 4.02 2852 0 Normal
03/12/2026 10 PM PDT 4.02 2852 0 Normal
03/12/2026 11 PM PDT 4.01 2841 - Normal
03/13/2026 12 AM PDT 4.01 2841 0 Normal
03/13/2026 01 AM PDT 4.00 2830 - Normal
03/13/2026 02 AM PDT 4.00 2830 0 Normal
03/13/2026 03 AM PDT 4.00 2830 0 Normal
03/13/2026 04 AM PDT 3.99 2820 - Normal
03/13/2026 05 AM PDT 3.99 2820 0 Normal
03/13/2026 06 AM PDT 3.99 2820 0 Normal
03/13/2026 07 AM PDT 3.99 2820 0 Normal
03/13/2026 08 AM PDT 4.00 2830 + Normal
03/13/2026 09 AM PDT 3.98 2809 - Normal
03/13/2026 10 AM PDT 3.97 2798 - Normal
03/13/2026 11 AM PDT 3.99 2820 + Normal
03/13/2026 12 PM PDT 3.98 2809 - Normal
03/13/2026 01 PM PDT 3.98 2809 0 Normal
03/13/2026 02 PM PDT 3.99 2820 + Normal
03/13/2026 03 PM PDT 3.99 2820 0 Normal
03/13/2026 04 PM PDT 3.99 2820 0 Normal
03/13/2026 05 PM PDT 4.00 2830 + Normal
03/13/2026 06 PM PDT 3.98 2809 - Normal
03/13/2026 07 PM PDT 3.97 2798 - Normal
03/13/2026 08 PM PDT 3.97 2798 0 Normal
03/13/2026 09 PM PDT 3.97 2798 0 Normal
03/13/2026 10 PM PDT 3.96 2788 - Normal
03/13/2026 11 PM PDT 3.96 2788 0 Normal
03/14/2026 12 AM PDT 3.96 2788 0 Normal
03/14/2026 01 AM PDT 3.96 2788 0 Normal
03/14/2026 02 AM PDT 3.95 2777 - Normal
03/14/2026 03 AM PDT 3.95 2777 0 Normal
03/14/2026 04 AM PDT 3.95 2777 0 Normal
03/14/2026 05 AM PDT 3.95 2777 0 Normal
03/14/2026 06 AM PDT 3.95 2777 0 Normal
03/14/2026 07 AM PDT 3.95 2777 0 Normal
03/14/2026 08 AM PDT 3.95 2777 0 Normal
03/14/2026 09 AM PDT 3.95 2777 0 Normal
03/14/2026 10 AM PDT 3.95 2777 0 Normal
03/14/2026 11 AM PDT 3.95 2777 0 Normal
03/14/2026 12 PM PDT 3.94 2766 - Normal
03/14/2026 01 PM PDT 3.94 2766 0 Normal
03/14/2026 02 PM PDT 3.95 2777 + Normal
03/14/2026 03 PM PDT 3.94 2766 - Normal
03/14/2026 04 PM PDT 3.95 2777 + Normal
03/14/2026 05 PM PDT 3.96 2788 + Normal
03/14/2026 06 PM PDT 3.94 2766 - Normal
03/14/2026 07 PM PDT 3.94 2766 0 Normal
03/14/2026 08 PM PDT 3.93 2756 - Normal
03/14/2026 09 PM PDT 3.93 2756 0 Normal
03/14/2026 10 PM PDT 3.92 2745 - Normal
03/14/2026 11 PM PDT 3.92 2745 0 Normal
03/15/2026 12 AM PDT 3.92 2745 0 Normal
03/15/2026 01 AM PDT 3.92 2745 0 Normal
03/15/2026 02 AM PDT 3.91 2735 - Normal
03/15/2026 03 AM PDT 3.92 2745 + Normal
03/15/2026 04 AM PDT 3.90 2724 - Normal
03/15/2026 05 AM PDT 3.90 2724 0 Normal
03/15/2026 06 AM PDT 3.90 2724 0 Normal
03/15/2026 07 AM PDT 3.90 2724 0 Normal
03/15/2026 08 AM PDT 3.89 2714 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/15/2026 09 AM PDT 3.89 2714 Normal
03/15/2026 10 AM PDT 3.89 2714 0 Normal
03/15/2026 11 AM PDT 3.88 2703 - Normal
03/15/2026 12 PM PDT 3.88 2703 0 Normal
03/15/2026 01 PM PDT 3.88 2703 0 Normal
03/15/2026 02 PM PDT 3.88 2703 0 Normal
03/15/2026 03 PM PDT 3.87 2693 - Normal
03/15/2026 04 PM PDT 3.87 2693 0 Normal
03/15/2026 05 PM PDT 3.86 2682 - Normal
03/15/2026 06 PM PDT 3.86 2682 0 Normal
03/15/2026 07 PM PDT 3.85 2672 - Normal
03/15/2026 08 PM PDT 3.85 2672 0 Normal
03/15/2026 09 PM PDT 3.86 2682 + Normal
03/15/2026 10 PM PDT 3.86 2682 0 Normal
03/15/2026 11 PM PDT 3.85 2672 - Normal
03/16/2026 12 AM PDT 3.85 2672 0 Normal
03/16/2026 01 AM PDT 3.85 2672 0 Normal
03/16/2026 02 AM PDT 3.86 2682 + Normal
03/16/2026 03 AM PDT 3.86 2682 0 Normal
03/16/2026 04 AM PDT 3.86 2682 0 Normal
03/16/2026 05 AM PDT 3.86 2682 0 Normal
03/16/2026 06 AM PDT 3.86 2682 0 Normal
03/16/2026 07 AM PDT 3.86 2682 0 Normal
03/16/2026 08 AM PDT 3.86 2682 0 Normal
03/16/2026 09 AM PDT 3.86 2682 0 Normal
03/16/2026 10 AM PDT 3.86 2682 0 Normal
03/16/2026 11 AM PDT 3.86 2682 0 Normal
03/16/2026 12 PM PDT 3.86 2682 0 Normal
03/16/2026 01 PM PDT 3.86 2682 0 Normal
03/16/2026 02 PM PDT 3.85 2672 - Normal
03/16/2026 03 PM PDT 3.85 2672 0 Normal
03/16/2026 04 PM PDT 3.85 2672 0 Normal
03/16/2026 05 PM PDT 3.85 2672 0 Normal
03/16/2026 06 PM PDT 3.85 2672 0 Normal
03/16/2026 07 PM PDT 3.85 2672 0 Normal
03/16/2026 08 PM PDT 3.85 2672 0 Normal
03/16/2026 09 PM PDT 3.86 2682 + Normal
03/16/2026 10 PM PDT 3.86 2682 0 Normal
03/16/2026 11 PM PDT 3.86 2682 0 Normal
03/17/2026 12 AM PDT 3.86 2682 0 Normal
03/17/2026 01 AM PDT 3.87 2693 + Normal
03/17/2026 02 AM PDT 3.87 2693 0 Normal
03/17/2026 03 AM PDT 3.87 2693 0 Normal
03/17/2026 04 AM PDT 3.87 2693 0 Normal
03/17/2026 05 AM PDT 3.87 2693 0 Normal
03/17/2026 06 AM PDT 3.88 2703 + Normal
03/17/2026 07 AM PDT 3.88 2703 0 Normal
03/17/2026 08 AM PDT 3.88 2703 0 Normal
03/17/2026 09 AM PDT 3.88 2703 0 Normal
03/17/2026 10 AM PDT 3.88 2703 0 Normal
03/17/2026 11 AM PDT 3.88 2703 0 Normal
03/17/2026 12 PM PDT 3.88 2703 0 Normal
03/17/2026 01 PM PDT 3.88 2703 0 Normal
03/17/2026 02 PM PDT 3.88 2703 0 Normal
03/17/2026 03 PM PDT 3.88 2703 0 Normal
03/17/2026 04 PM PDT 3.88 2703 0 Normal
03/17/2026 05 PM PDT 3.88 2703 0 Normal
03/17/2026 06 PM PDT 3.88 2703 0 Normal
03/17/2026 07 PM PDT 3.88 2703 0 Normal
03/17/2026 08 PM PDT 3.88 2703 0 Normal
03/17/2026 09 PM PDT 3.88 2703 0 Normal
03/17/2026 10 PM PDT 3.88 2703 0 Normal
03/17/2026 11 PM PDT 3.88 2703 0 Normal
03/18/2026 12 AM PDT 3.88 2703 0 Normal
03/18/2026 01 AM PDT 3.89 2714 + Normal
03/18/2026 02 AM PDT 3.89 2714 0 Normal
03/18/2026 03 AM PDT 3.89 2714 0 Normal
03/18/2026 04 AM PDT 3.89 2714 0 Normal
03/18/2026 05 AM PDT 3.89 2714 0 Normal
03/18/2026 06 AM PDT 3.89 2714 0 Normal
03/18/2026 07 AM PDT 3.89 2714 0 Normal
03/18/2026 08 AM PDT 3.89 2714 0 Normal
03/18/2026 09 AM PDT 3.89 2714 0 Normal
03/18/2026 10 AM PDT 3.89 2714 0 Normal
03/18/2026 11 AM PDT 3.89 2714 0 Normal
03/18/2026 12 PM PDT 3.88 2703 - Normal
03/18/2026 01 PM PDT 3.88 2703 0 Normal
03/18/2026 02 PM PDT 3.88 2703 0 Normal
03/18/2026 03 PM PDT 3.88 2703 0 Normal
03/18/2026 04 PM PDT 3.88 2703 0 Normal
03/18/2026 05 PM PDT 3.88 2703 0 Normal
03/18/2026 06 PM PDT 3.87 2693 - Normal
03/18/2026 07 PM PDT 3.87 2693 0 Normal
03/18/2026 08 PM PDT 3.87 2693 0 Normal
03/18/2026 09 PM PDT 3.87 2693 0 Normal
03/18/2026 10 PM PDT 3.87 2693 0 Normal
03/18/2026 11 PM PDT 3.87 2693 0 Normal
03/19/2026 12 AM PDT 3.88 2703 + Normal
03/19/2026 01 AM PDT 3.88 2703 0 Normal
03/19/2026 02 AM PDT 3.88 2703 0 Normal
03/19/2026 03 AM PDT 3.88 2703 0 Normal
03/19/2026 04 AM PDT 3.88 2703 0 Normal
03/19/2026 05 AM PDT 3.88 2703 0 Normal
03/19/2026 06 AM PDT 3.88 2703 0 Normal
03/19/2026 07 AM PDT 3.88 2703 0 Normal
03/19/2026 08 AM PDT 3.88 2703 0 Normal
03/19/2026 09 AM PDT 3.88 2703 0 Normal
03/19/2026 10 AM PDT 3.88 2703 0 Normal
03/19/2026 11 AM PDT 3.88 2703 0 Normal
03/19/2026 12 PM PDT 3.88 2703 0 Normal
03/19/2026 01 PM PDT 3.88 2703 0 Normal
03/19/2026 02 PM PDT 3.88 2703 0 Normal
03/19/2026 03 PM PDT 3.87 2693 - Normal
03/19/2026 04 PM PDT 3.87 2693 0 Normal
03/19/2026 05 PM PDT 3.87 2693 0 Normal
03/19/2026 06 PM PDT 3.87 2693 0 Normal
03/19/2026 07 PM PDT 3.87 2693 0 Normal
03/19/2026 08 PM PDT 3.87 2693 0 Normal
03/19/2026 09 PM PDT 3.87 2693 0 Normal
03/19/2026 10 PM PDT 3.87 2693 0 Normal
03/19/2026 11 PM PDT 3.87 2693 0 Normal
03/20/2026 12 AM PDT 3.87 2693 0 Normal
03/20/2026 01 AM PDT 3.87 2693 0 Normal
03/20/2026 02 AM PDT 3.87 2693 0 Normal
03/20/2026 03 AM PDT 3.87 2693 0 Normal
03/20/2026 04 AM PDT 3.87 2693 0 Normal
03/20/2026 05 AM PDT 3.87 2693 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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