National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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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: Jul 01 2025 at 7:28 AM PDTNext Issuance: Jul 02 2025 at 9:00 AM PDT
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:  07/01/2025 at 07:28 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/26/2025 at 03:00 PM PDT
# Maximum Observed Stage:                       3.13 Feet
# Maximum Observed Flow:                        1981 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/02/2025 at 06:00 PM PDT
# Maximum Forecast Stage:                       3.10 Feet
# Maximum Forecast Flow:                        1955 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/26/2025 07 AM PDT            3.11           1964                        Normal
  06/26/2025 08 AM PDT            3.10           1955         -              Normal
  06/26/2025 09 AM PDT            3.11           1964         +              Normal
  06/26/2025 10 AM PDT            3.12           1973         +              Normal
  06/26/2025 11 AM PDT            3.12           1973         0              Normal
  06/26/2025 12 PM PDT            3.12           1973         0              Normal
  06/26/2025 01 PM PDT            3.13           1981         +              Normal
  06/26/2025 02 PM PDT            3.13           1981         0              Normal
  06/26/2025 03 PM PDT            3.13           1981         0              Normal
  06/26/2025 04 PM PDT            3.12           1973         -              Normal
  06/26/2025 05 PM PDT            3.12           1973         0              Normal
  06/26/2025 06 PM PDT            3.12           1973         0              Normal
  06/26/2025 07 PM PDT            3.11           1964         -              Normal
  06/26/2025 08 PM PDT            3.09           1946         -              Normal
  06/26/2025 09 PM PDT            3.10           1955         +              Normal
  06/26/2025 10 PM PDT            3.10           1955         0              Normal
  06/26/2025 11 PM PDT            3.09           1946         -              Normal
  06/27/2025 12 AM PDT            3.09           1946         0              Normal
  06/27/2025 01 AM PDT            3.08           1938         -              Normal
  06/27/2025 02 AM PDT            3.09           1946         +              Normal
  06/27/2025 03 AM PDT            3.08           1938         -              Normal
  06/27/2025 04 AM PDT            3.07           1929         -              Normal
  06/27/2025 05 AM PDT            3.08           1938         +              Normal
  06/27/2025 06 AM PDT            3.08           1938         0              Normal
  06/27/2025 07 AM PDT            3.08           1938         0              Normal
  06/27/2025 08 AM PDT            3.09           1946         +              Normal
  06/27/2025 09 AM PDT            3.08           1938         -              Normal
  06/27/2025 10 AM PDT            3.08           1938         0              Normal
  06/27/2025 11 AM PDT            3.09           1946         +              Normal
  06/27/2025 12 PM PDT            3.09           1946         0              Normal
  06/27/2025 01 PM PDT            3.10           1955         +              Normal
  06/27/2025 02 PM PDT            3.10           1955         0              Normal
  06/27/2025 03 PM PDT            3.08           1938         -              Normal
  06/27/2025 04 PM PDT            3.09           1946         +              Normal
  06/27/2025 05 PM PDT            3.09           1946         0              Normal
  06/27/2025 06 PM PDT            3.07           1929         -              Normal
  06/27/2025 07 PM PDT            3.08           1938         +              Normal
  06/27/2025 08 PM PDT            3.07           1929         -              Normal
  06/27/2025 09 PM PDT            3.07           1929         0              Normal
  06/27/2025 10 PM PDT            3.07           1929         0              Normal
  06/27/2025 11 PM PDT            3.05           1912         -              Normal
  06/28/2025 12 AM PDT            3.05           1912         0              Normal
  06/28/2025 01 AM PDT            3.05           1912         0              Normal
  06/28/2025 02 AM PDT            3.04           1903         -              Normal
  06/28/2025 03 AM PDT            3.05           1912         +              Normal
  06/28/2025 04 AM PDT            3.04           1903         -              Normal
  06/28/2025 05 AM PDT            3.04           1903         0              Normal
  06/28/2025 06 AM PDT            3.04           1903         0              Normal
  06/28/2025 07 AM PDT            3.04           1903         0              Normal
  06/28/2025 08 AM PDT            3.05           1912         +              Normal
  06/28/2025 09 AM PDT            3.05           1912         0              Normal
  06/28/2025 10 AM PDT            3.05           1912         0              Normal
  06/28/2025 11 AM PDT            3.05           1912         0              Normal
  06/28/2025 12 PM PDT            3.06           1920         +              Normal
  06/28/2025 01 PM PDT            3.06           1920         0              Normal
  06/28/2025 02 PM PDT            3.05           1912         -              Normal
  06/28/2025 03 PM PDT            3.06           1920         +              Normal
  06/28/2025 04 PM PDT            3.06           1920         0              Normal
  06/28/2025 05 PM PDT            3.06           1920         0              Normal
  06/28/2025 06 PM PDT            3.04           1903         -              Normal
  06/28/2025 07 PM PDT            3.05           1912         +              Normal
  06/28/2025 08 PM PDT            3.04           1903         -              Normal
  06/28/2025 09 PM PDT            3.04           1903         0              Normal
  06/28/2025 10 PM PDT            3.03           1895         -              Normal
  06/28/2025 11 PM PDT            3.03           1895         0              Normal
  06/29/2025 12 AM PDT            3.03           1895         0              Normal
  06/29/2025 01 AM PDT            3.03           1895         0              Normal
  06/29/2025 02 AM PDT            3.03           1895         0              Normal
  06/29/2025 03 AM PDT            3.03           1895         0              Normal
  06/29/2025 04 AM PDT            3.04           1903         +              Normal
  06/29/2025 05 AM PDT            3.03           1895         -              Normal
  06/29/2025 06 AM PDT            3.04           1903         +              Normal
  06/29/2025 07 AM PDT            3.03           1895         -              Normal
  06/29/2025 08 AM PDT            3.04           1903         +              Normal
  06/29/2025 09 AM PDT            3.04           1903         0              Normal
  06/29/2025 10 AM PDT            3.04           1903         0              Normal
  06/29/2025 11 AM PDT            3.04           1903         0              Normal
  06/29/2025 12 PM PDT            3.05           1912         +              Normal
  06/29/2025 01 PM PDT            3.05           1912         0              Normal
  06/29/2025 02 PM PDT            3.05           1912         0              Normal
  06/29/2025 03 PM PDT            3.05           1912         0              Normal
  06/29/2025 04 PM PDT            3.05           1912         0              Normal
  06/29/2025 05 PM PDT            3.04           1903         -              Normal
  06/29/2025 06 PM PDT            3.05           1912         +              Normal
  06/29/2025 07 PM PDT            3.04           1903         -              Normal
  06/29/2025 08 PM PDT            3.03           1895         -              Normal
  06/29/2025 09 PM PDT            3.02           1886         -              Normal
  06/29/2025 10 PM PDT            3.01           1877         -              Normal
  06/29/2025 11 PM PDT            3.03           1895         +              Normal
  06/30/2025 12 AM PDT            3.01           1877         -              Normal
  06/30/2025 01 AM PDT            3.00           1869         -              Normal
  06/30/2025 02 AM PDT            3.01           1877         +              Normal
  06/30/2025 03 AM PDT            3.02           1886         +              Normal
  06/30/2025 04 AM PDT            3.01           1877         -              Normal
  06/30/2025 05 AM PDT            3.03           1895         +              Normal
  06/30/2025 06 AM PDT            3.02           1886         -              Normal
  06/30/2025 07 AM PDT            3.03           1895         +              Normal
  06/30/2025 08 AM PDT            3.02           1886         -              Normal
  06/30/2025 09 AM PDT            3.02           1886         0              Normal
  06/30/2025 10 AM PDT            3.02           1886         0              Normal
  06/30/2025 11 AM PDT            3.03           1895         +              Normal
  06/30/2025 12 PM PDT            3.03           1895         0              Normal
  06/30/2025 01 PM PDT            3.03           1895         0              Normal
  06/30/2025 02 PM PDT            3.03           1895         0              Normal
  06/30/2025 03 PM PDT            3.05           1912         +              Normal
  06/30/2025 04 PM PDT            3.04           1903         -              Normal
  06/30/2025 05 PM PDT            3.05           1912         +              Normal
  06/30/2025 06 PM PDT            3.03           1895         -              Normal
  06/30/2025 07 PM PDT            3.02           1886         -              Normal
  06/30/2025 08 PM PDT            3.02           1886         0              Normal
  06/30/2025 09 PM PDT            3.02           1886         0              Normal
  06/30/2025 10 PM PDT            3.02           1886         0              Normal
  06/30/2025 11 PM PDT            3.01           1877         -              Normal
  07/01/2025 12 AM PDT            3.02           1886         +              Normal
  07/01/2025 01 AM PDT            3.02           1886         0              Normal
  07/01/2025 02 AM PDT            3.02           1886         0              Normal
  07/01/2025 03 AM PDT            3.03           1895         +              Normal
  07/01/2025 04 AM PDT            3.02           1886         -              Normal
  07/01/2025 05 AM PDT            3.04           1903         +              Normal
  07/01/2025 06 AM PDT            3.05           1912         +              Normal
  07/01/2025 07 AM PDT            3.05           1912         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/01/2025 08 AM PDT            3.06           1920                        Normal
  07/01/2025 09 AM PDT            3.06           1920         0              Normal
  07/01/2025 10 AM PDT            3.06           1920         0              Normal
  07/01/2025 11 AM PDT            3.06           1920         0              Normal
  07/01/2025 12 PM PDT            3.06           1920         0              Normal
  07/01/2025 01 PM PDT            3.05           1912         -              Normal
  07/01/2025 02 PM PDT            3.04           1903         -              Normal
  07/01/2025 03 PM PDT            3.04           1903         0              Normal
  07/01/2025 04 PM PDT            3.03           1895         -              Normal
  07/01/2025 05 PM PDT            3.03           1895         0              Normal
  07/01/2025 06 PM PDT            3.03           1895         0              Normal
  07/01/2025 07 PM PDT            3.03           1895         0              Normal
  07/01/2025 08 PM PDT            3.03           1895         0              Normal
  07/01/2025 09 PM PDT            3.04           1903         +              Normal
  07/01/2025 10 PM PDT            3.04           1903         0              Normal
  07/01/2025 11 PM PDT            3.04           1903         0              Normal
  07/02/2025 12 AM PDT            3.04           1903         0              Normal
  07/02/2025 01 AM PDT            3.04           1903         0              Normal
  07/02/2025 02 AM PDT            3.04           1903         0              Normal
  07/02/2025 03 AM PDT            3.04           1903         0              Normal
  07/02/2025 04 AM PDT            3.04           1903         0              Normal
  07/02/2025 05 AM PDT            3.04           1903         0              Normal
  07/02/2025 06 AM PDT            3.04           1903         0              Normal
  07/02/2025 07 AM PDT            3.04           1903         0              Normal
  07/02/2025 08 AM PDT            3.05           1912         +              Normal
  07/02/2025 09 AM PDT            3.05           1912         0              Normal
  07/02/2025 10 AM PDT            3.05           1912         0              Normal
  07/02/2025 11 AM PDT            3.05           1912         0              Normal
  07/02/2025 12 PM PDT            3.06           1920         +              Normal
  07/02/2025 01 PM PDT            3.06           1920         0              Normal
  07/02/2025 02 PM PDT            3.07           1929         +              Normal
  07/02/2025 03 PM PDT            3.07           1929         0              Normal
  07/02/2025 04 PM PDT            3.08           1938         +              Normal
  07/02/2025 05 PM PDT            3.09           1946         +              Normal
  07/02/2025 06 PM PDT            3.10           1955         +              Normal
  07/02/2025 07 PM PDT            3.10           1955         0              Normal
  07/02/2025 08 PM PDT            3.10           1955         0              Normal
  07/02/2025 09 PM PDT            3.10           1955         0              Normal
  07/02/2025 10 PM PDT            3.10           1955         0              Normal
  07/02/2025 11 PM PDT            3.09           1946         -              Normal
  07/03/2025 12 AM PDT            3.09           1946         0              Normal
  07/03/2025 01 AM PDT            3.09           1946         0              Normal
  07/03/2025 02 AM PDT            3.08           1938         -              Normal
  07/03/2025 03 AM PDT            3.08           1938         0              Normal
  07/03/2025 04 AM PDT            3.08           1938         0              Normal
  07/03/2025 05 AM PDT            3.08           1938         0              Normal
  07/03/2025 06 AM PDT            3.07           1929         -              Normal
  07/03/2025 07 AM PDT            3.07           1929         0              Normal
  07/03/2025 08 AM PDT            3.06           1920         -              Normal
  07/03/2025 09 AM PDT            3.06           1920         0              Normal
  07/03/2025 10 AM PDT            3.06           1920         0              Normal
  07/03/2025 11 AM PDT            3.05           1912         -              Normal
  07/03/2025 12 PM PDT            3.05           1912         0              Normal
  07/03/2025 01 PM PDT            3.05           1912         0              Normal
  07/03/2025 02 PM PDT            3.04           1903         -              Normal
  07/03/2025 03 PM PDT            3.04           1903         0              Normal
  07/03/2025 04 PM PDT            3.03           1895         -              Normal
  07/03/2025 05 PM PDT            3.03           1895         0              Normal
  07/03/2025 06 PM PDT            3.03           1895         0              Normal
  07/03/2025 07 PM PDT            3.02           1886         -              Normal
  07/03/2025 08 PM PDT            3.02           1886         0              Normal
  07/03/2025 09 PM PDT            3.02           1886         0              Normal
  07/03/2025 10 PM PDT            3.01           1877         -              Normal
  07/03/2025 11 PM PDT            3.01           1877         0              Normal
  07/04/2025 12 AM PDT            3.01           1877         0              Normal
  07/04/2025 01 AM PDT            3.00           1869         -              Normal
  07/04/2025 02 AM PDT            3.00           1869         0              Normal
  07/04/2025 03 AM PDT            3.00           1869         0              Normal
  07/04/2025 04 AM PDT            3.00           1869         0              Normal
  07/04/2025 05 AM PDT            3.00           1869         0              Normal
  07/04/2025 06 AM PDT            2.99           1860         -              Normal
  07/04/2025 07 AM PDT            2.99           1860         0              Normal
  07/04/2025 08 AM PDT            2.99           1860         0              Normal
  07/04/2025 09 AM PDT            2.99           1860         0              Normal
  07/04/2025 10 AM PDT            2.99           1860         0              Normal
  07/04/2025 11 AM PDT            2.98           1852         -              Normal
  07/04/2025 12 PM PDT            2.98           1852         0              Normal
  07/04/2025 01 PM PDT            2.98           1852         0              Normal
  07/04/2025 02 PM PDT            2.98           1852         0              Normal
  07/04/2025 03 PM PDT            2.98           1852         0              Normal
  07/04/2025 04 PM PDT            2.98           1852         0              Normal
  07/04/2025 05 PM PDT            2.98           1852         0              Normal
  07/04/2025 06 PM PDT            2.97           1844         -              Normal
  07/04/2025 07 PM PDT            2.97           1844         0              Normal
  07/04/2025 08 PM PDT            2.97           1844         0              Normal
  07/04/2025 09 PM PDT            2.97           1844         0              Normal
  07/04/2025 10 PM PDT            2.97           1844         0              Normal
  07/04/2025 11 PM PDT            2.97           1844         0              Normal
  07/05/2025 12 AM PDT            2.97           1844         0              Normal
  07/05/2025 01 AM PDT            2.97           1844         0              Normal
  07/05/2025 02 AM PDT            2.97           1844         0              Normal
  07/05/2025 03 AM PDT            2.97           1844         0              Normal
  07/05/2025 04 AM PDT            2.96           1835         -              Normal
  07/05/2025 05 AM PDT            2.96           1835         0              Normal
  07/05/2025 06 AM PDT            2.96           1835         0              Normal
  07/05/2025 07 AM PDT            2.96           1835         0              Normal
  07/05/2025 08 AM PDT            2.96           1835         0              Normal
  07/05/2025 09 AM PDT            2.96           1835         0              Normal
  07/05/2025 10 AM PDT            2.96           1835         0              Normal
  07/05/2025 11 AM PDT            2.96           1835         0              Normal
  07/05/2025 12 PM PDT            2.96           1835         0              Normal
  07/05/2025 01 PM PDT            2.96           1835         0              Normal
  07/05/2025 02 PM PDT            2.96           1835         0              Normal
  07/05/2025 03 PM PDT            2.96           1835         0              Normal
  07/05/2025 04 PM PDT            2.96           1835         0              Normal
  07/05/2025 05 PM PDT            2.96           1835         0              Normal
  07/05/2025 06 PM PDT            2.95           1827         -              Normal
  07/05/2025 07 PM PDT            2.95           1827         0              Normal
  07/05/2025 08 PM PDT            2.95           1827         0              Normal
  07/05/2025 09 PM PDT            2.95           1827         0              Normal
  07/05/2025 10 PM PDT            2.95           1827         0              Normal
  07/05/2025 11 PM PDT            2.95           1827         0              Normal
  07/06/2025 12 AM PDT            2.95           1827         0              Normal
  07/06/2025 01 AM PDT            2.95           1827         0              Normal
  07/06/2025 02 AM PDT            2.95           1827         0              Normal
  07/06/2025 03 AM PDT            2.95           1827         0              Normal
  07/06/2025 04 AM PDT            2.95           1827         0              Normal
  07/06/2025 05 AM PDT            2.95           1827         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.