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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: | May 11 2026 at 7:14 AM PDT | Next Issuance: | May 12 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: 05/11/2026 at 07:14 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/06/2026 at 03:00 PM PDT
# Maximum Observed Stage: 3.13 Feet
# Maximum Observed Flow: 1981 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/11/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 2.97 Feet
# Maximum Forecast Flow: 1844 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/06/2026 07 AM PDT 3.13 1981 Normal
05/06/2026 08 AM PDT 3.12 1973 - Normal
05/06/2026 09 AM PDT 3.12 1973 0 Normal
05/06/2026 10 AM PDT 3.13 1981 + Normal
05/06/2026 11 AM PDT 3.13 1981 0 Normal
05/06/2026 12 PM PDT 3.13 1981 0 Normal
05/06/2026 01 PM PDT 3.12 1973 - Normal
05/06/2026 02 PM PDT 3.13 1981 + Normal
05/06/2026 03 PM PDT 3.13 1981 0 Normal
05/06/2026 04 PM PDT 3.12 1973 - Normal
05/06/2026 05 PM PDT 3.11 1964 - Normal
05/06/2026 06 PM PDT 3.12 1973 + Normal
05/06/2026 07 PM PDT 3.11 1964 - Normal
05/06/2026 08 PM PDT 3.11 1964 0 Normal
05/06/2026 09 PM PDT 3.10 1955 - Normal
05/06/2026 10 PM PDT 3.09 1946 - Normal
05/06/2026 11 PM PDT 3.10 1955 + Normal
05/07/2026 12 AM PDT 3.09 1946 - Normal
05/07/2026 01 AM PDT 3.09 1946 0 Normal
05/07/2026 02 AM PDT 3.08 1938 - Normal
05/07/2026 03 AM PDT 3.08 1938 0 Normal
05/07/2026 04 AM PDT 3.09 1946 + Normal
05/07/2026 05 AM PDT 3.08 1938 - Normal
05/07/2026 06 AM PDT 3.09 1946 + Normal
05/07/2026 07 AM PDT 3.08 1938 - Normal
05/07/2026 08 AM PDT 3.08 1938 0 Normal
05/07/2026 09 AM PDT 3.08 1938 0 Normal
05/07/2026 10 AM PDT 3.08 1938 0 Normal
05/07/2026 11 AM PDT 3.08 1938 0 Normal
05/07/2026 12 PM PDT 3.09 1946 + Normal
05/07/2026 01 PM PDT 3.09 1946 0 Normal
05/07/2026 02 PM PDT 3.09 1946 0 Normal
05/07/2026 03 PM PDT 3.08 1938 - Normal
05/07/2026 04 PM PDT 3.08 1938 0 Normal
05/07/2026 05 PM PDT 3.09 1946 + Normal
05/07/2026 06 PM PDT 3.08 1938 - Normal
05/07/2026 07 PM PDT 3.08 1938 0 Normal
05/07/2026 08 PM PDT 3.08 1938 0 Normal
05/07/2026 09 PM PDT 3.07 1929 - Normal
05/07/2026 10 PM PDT 3.07 1929 0 Normal
05/07/2026 11 PM PDT 3.07 1929 0 Normal
05/08/2026 12 AM PDT 3.06 1920 - Normal
05/08/2026 01 AM PDT 3.06 1920 0 Normal
05/08/2026 02 AM PDT 3.07 1929 + Normal
05/08/2026 03 AM PDT 3.07 1929 0 Normal
05/08/2026 04 AM PDT 3.07 1929 0 Normal
05/08/2026 05 AM PDT 3.06 1920 - Normal
05/08/2026 06 AM PDT 3.06 1920 0 Normal
05/08/2026 07 AM PDT 3.06 1920 0 Normal
05/08/2026 08 AM PDT 3.06 1920 0 Normal
05/08/2026 09 AM PDT 3.05 1912 - Normal
05/08/2026 10 AM PDT 3.05 1912 0 Normal
05/08/2026 11 AM PDT 3.05 1912 0 Normal
05/08/2026 12 PM PDT 3.05 1912 0 Normal
05/08/2026 01 PM PDT 3.05 1912 0 Normal
05/08/2026 02 PM PDT 3.05 1912 0 Normal
05/08/2026 03 PM PDT 3.04 1903 - Normal
05/08/2026 04 PM PDT 3.04 1903 0 Normal
05/08/2026 05 PM PDT 3.03 1895 - Normal
05/08/2026 06 PM PDT 3.03 1895 0 Normal
05/08/2026 07 PM PDT 3.03 1895 0 Normal
05/08/2026 08 PM PDT 3.03 1895 0 Normal
05/08/2026 09 PM PDT 3.03 1895 0 Normal
05/08/2026 10 PM PDT 3.02 1886 - Normal
05/08/2026 11 PM PDT 3.02 1886 0 Normal
05/09/2026 12 AM PDT 3.03 1895 + Normal
05/09/2026 01 AM PDT 3.02 1886 - Normal
05/09/2026 02 AM PDT 3.01 1877 - Normal
05/09/2026 03 AM PDT 3.01 1877 0 Normal
05/09/2026 04 AM PDT 3.01 1877 0 Normal
05/09/2026 05 AM PDT 3.01 1877 0 Normal
05/09/2026 06 AM PDT 3.01 1877 0 Normal
05/09/2026 07 AM PDT 3.01 1877 0 Normal
05/09/2026 08 AM PDT 3.01 1877 0 Normal
05/09/2026 09 AM PDT 3.01 1877 0 Normal
05/09/2026 10 AM PDT 3.00 1869 - Normal
05/09/2026 11 AM PDT 2.99 1860 - Normal
05/09/2026 12 PM PDT 2.98 1852 - Normal
05/09/2026 01 PM PDT 2.98 1852 0 Normal
05/09/2026 02 PM PDT 2.98 1852 0 Normal
05/09/2026 03 PM PDT 2.97 1844 - Normal
05/09/2026 04 PM PDT 2.97 1844 0 Normal
05/09/2026 05 PM PDT 2.97 1844 0 Normal
05/09/2026 06 PM PDT 2.97 1844 0 Normal
05/09/2026 07 PM PDT 2.97 1844 0 Normal
05/09/2026 08 PM PDT 2.97 1844 0 Normal
05/09/2026 09 PM PDT 2.97 1844 0 Normal
05/09/2026 10 PM PDT 2.97 1844 0 Normal
05/09/2026 11 PM PDT 2.97 1844 0 Normal
05/10/2026 12 AM PDT 2.97 1844 0 Normal
05/10/2026 01 AM PDT 2.98 1852 + Normal
05/10/2026 02 AM PDT 2.98 1852 0 Normal
05/10/2026 03 AM PDT 2.98 1852 0 Normal
05/10/2026 04 AM PDT 2.98 1852 0 Normal
05/10/2026 05 AM PDT 2.98 1852 0 Normal
05/10/2026 06 AM PDT 2.98 1852 0 Normal
05/10/2026 07 AM PDT 2.98 1852 0 Normal
05/10/2026 08 AM PDT 2.98 1852 0 Normal
05/10/2026 09 AM PDT 2.98 1852 0 Normal
05/10/2026 10 AM PDT 2.98 1852 0 Normal
05/10/2026 11 AM PDT 2.98 1852 0 Normal
05/10/2026 12 PM PDT 2.98 1852 0 Normal
05/10/2026 01 PM PDT 2.98 1852 0 Normal
05/10/2026 02 PM PDT 2.98 1852 0 Normal
05/10/2026 03 PM PDT 2.98 1852 0 Normal
05/10/2026 04 PM PDT 2.98 1852 0 Normal
05/10/2026 05 PM PDT 2.98 1852 0 Normal
05/10/2026 06 PM PDT 2.97 1844 - Normal
05/10/2026 07 PM PDT 2.97 1844 0 Normal
05/10/2026 08 PM PDT 2.97 1844 0 Normal
05/10/2026 09 PM PDT 2.97 1844 0 Normal
05/10/2026 10 PM PDT 2.97 1844 0 Normal
05/10/2026 11 PM PDT 2.97 1844 0 Normal
05/11/2026 12 AM PDT 2.97 1844 0 Normal
05/11/2026 01 AM PDT 2.97 1844 0 Normal
05/11/2026 02 AM PDT 2.97 1844 0 Normal
05/11/2026 03 AM PDT 2.97 1844 0 Normal
05/11/2026 04 AM PDT 2.97 1844 0 Normal
05/11/2026 05 AM PDT 2.97 1844 0 Normal
05/11/2026 06 AM PDT 2.96 1835 - Normal
05/11/2026 07 AM PDT 2.96 1835 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/11/2026 08 AM PDT 2.97 1844 Normal
05/11/2026 09 AM PDT 2.97 1844 0 Normal
05/11/2026 10 AM PDT 2.97 1844 0 Normal
05/11/2026 11 AM PDT 2.96 1835 - Normal
05/11/2026 12 PM PDT 2.96 1835 0 Normal
05/11/2026 01 PM PDT 2.96 1835 0 Normal
05/11/2026 02 PM PDT 2.96 1835 0 Normal
05/11/2026 03 PM PDT 2.96 1835 0 Normal
05/11/2026 04 PM PDT 2.96 1835 0 Normal
05/11/2026 05 PM PDT 2.96 1835 0 Normal
05/11/2026 06 PM PDT 2.96 1835 0 Normal
05/11/2026 07 PM PDT 2.95 1827 - Normal
05/11/2026 08 PM PDT 2.95 1827 0 Normal
05/11/2026 09 PM PDT 2.95 1827 0 Normal
05/11/2026 10 PM PDT 2.95 1827 0 Normal
05/11/2026 11 PM PDT 2.95 1827 0 Normal
05/12/2026 12 AM PDT 2.95 1827 0 Normal
05/12/2026 01 AM PDT 2.94 1818 - Normal
05/12/2026 02 AM PDT 2.94 1818 0 Normal
05/12/2026 03 AM PDT 2.94 1818 0 Normal
05/12/2026 04 AM PDT 2.94 1818 0 Normal
05/12/2026 05 AM PDT 2.94 1818 0 Normal
05/12/2026 06 AM PDT 2.94 1818 0 Normal
05/12/2026 07 AM PDT 2.94 1818 0 Normal
05/12/2026 08 AM PDT 2.94 1818 0 Normal
05/12/2026 09 AM PDT 2.94 1818 0 Normal
05/12/2026 10 AM PDT 2.94 1818 0 Normal
05/12/2026 11 AM PDT 2.94 1818 0 Normal
05/12/2026 12 PM PDT 2.94 1818 0 Normal
05/12/2026 01 PM PDT 2.94 1818 0 Normal
05/12/2026 02 PM PDT 2.94 1818 0 Normal
05/12/2026 03 PM PDT 2.94 1818 0 Normal
05/12/2026 04 PM PDT 2.93 1810 - Normal
05/12/2026 05 PM PDT 2.93 1810 0 Normal
05/12/2026 06 PM PDT 2.93 1810 0 Normal
05/12/2026 07 PM PDT 2.93 1810 0 Normal
05/12/2026 08 PM PDT 2.93 1810 0 Normal
05/12/2026 09 PM PDT 2.93 1810 0 Normal
05/12/2026 10 PM PDT 2.93 1810 0 Normal
05/12/2026 11 PM PDT 2.93 1810 0 Normal
05/13/2026 12 AM PDT 2.93 1810 0 Normal
05/13/2026 01 AM PDT 2.93 1810 0 Normal
05/13/2026 02 AM PDT 2.93 1810 0 Normal
05/13/2026 03 AM PDT 2.93 1810 0 Normal
05/13/2026 04 AM PDT 2.93 1810 0 Normal
05/13/2026 05 AM PDT 2.93 1810 0 Normal
05/13/2026 06 AM PDT 2.93 1810 0 Normal
05/13/2026 07 AM PDT 2.93 1810 0 Normal
05/13/2026 08 AM PDT 2.93 1810 0 Normal
05/13/2026 09 AM PDT 2.93 1810 0 Normal
05/13/2026 10 AM PDT 2.93 1810 0 Normal
05/13/2026 11 AM PDT 2.93 1810 0 Normal
05/13/2026 12 PM PDT 2.93 1810 0 Normal
05/13/2026 01 PM PDT 2.93 1810 0 Normal
05/13/2026 02 PM PDT 2.93 1810 0 Normal
05/13/2026 03 PM PDT 2.93 1810 0 Normal
05/13/2026 04 PM PDT 2.93 1810 0 Normal
05/13/2026 05 PM PDT 2.93 1810 0 Normal
05/13/2026 06 PM PDT 2.93 1810 0 Normal
05/13/2026 07 PM PDT 2.93 1810 0 Normal
05/13/2026 08 PM PDT 2.93 1810 0 Normal
05/13/2026 09 PM PDT 2.93 1810 0 Normal
05/13/2026 10 PM PDT 2.93 1810 0 Normal
05/13/2026 11 PM PDT 2.93 1810 0 Normal
05/14/2026 12 AM PDT 2.93 1810 0 Normal
05/14/2026 01 AM PDT 2.94 1818 + Normal
05/14/2026 02 AM PDT 2.94 1818 0 Normal
05/14/2026 03 AM PDT 2.94 1818 0 Normal
05/14/2026 04 AM PDT 2.94 1818 0 Normal
05/14/2026 05 AM PDT 2.95 1827 + Normal
05/14/2026 06 AM PDT 2.95 1827 0 Normal
05/14/2026 07 AM PDT 2.95 1827 0 Normal
05/14/2026 08 AM PDT 2.95 1827 0 Normal
05/14/2026 09 AM PDT 2.95 1827 0 Normal
05/14/2026 10 AM PDT 2.95 1827 0 Normal
05/14/2026 11 AM PDT 2.95 1827 0 Normal
05/14/2026 12 PM PDT 2.95 1827 0 Normal
05/14/2026 01 PM PDT 2.95 1827 0 Normal
05/14/2026 02 PM PDT 2.95 1827 0 Normal
05/14/2026 03 PM PDT 2.94 1818 - Normal
05/14/2026 04 PM PDT 2.94 1818 0 Normal
05/14/2026 05 PM PDT 2.94 1818 0 Normal
05/14/2026 06 PM PDT 2.94 1818 0 Normal
05/14/2026 07 PM PDT 2.94 1818 0 Normal
05/14/2026 08 PM PDT 2.94 1818 0 Normal
05/14/2026 09 PM PDT 2.94 1818 0 Normal
05/14/2026 10 PM PDT 2.93 1810 - Normal
05/14/2026 11 PM PDT 2.93 1810 0 Normal
05/15/2026 12 AM PDT 2.93 1810 0 Normal
05/15/2026 01 AM PDT 2.93 1810 0 Normal
05/15/2026 02 AM PDT 2.93 1810 0 Normal
05/15/2026 03 AM PDT 2.93 1810 0 Normal
05/15/2026 04 AM PDT 2.93 1810 0 Normal
05/15/2026 05 AM PDT 2.92 1802 - Normal
05/15/2026 06 AM PDT 2.92 1802 0 Normal
05/15/2026 07 AM PDT 2.92 1802 0 Normal
05/15/2026 08 AM PDT 2.92 1802 0 Normal
05/15/2026 09 AM PDT 2.92 1802 0 Normal
05/15/2026 10 AM PDT 2.92 1802 0 Normal
05/15/2026 11 AM PDT 2.92 1802 0 Normal
05/15/2026 12 PM PDT 2.92 1802 0 Normal
05/15/2026 01 PM PDT 2.91 1793 - Normal
05/15/2026 02 PM PDT 2.91 1793 0 Normal
05/15/2026 03 PM PDT 2.91 1793 0 Normal
05/15/2026 04 PM PDT 2.91 1793 0 Normal
05/15/2026 05 PM PDT 2.91 1793 0 Normal
05/15/2026 06 PM PDT 2.91 1793 0 Normal
05/15/2026 07 PM PDT 2.91 1793 0 Normal
05/15/2026 08 PM PDT 2.90 1785 - Normal
05/15/2026 09 PM PDT 2.90 1785 0 Normal
05/15/2026 10 PM PDT 2.90 1785 0 Normal
05/15/2026 11 PM PDT 2.90 1785 0 Normal
05/16/2026 12 AM PDT 2.90 1785 0 Normal
05/16/2026 01 AM PDT 2.90 1785 0 Normal
05/16/2026 02 AM PDT 2.90 1785 0 Normal
05/16/2026 03 AM PDT 2.90 1785 0 Normal
05/16/2026 04 AM PDT 2.90 1785 0 Normal
05/16/2026 05 AM PDT 2.90 1785 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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