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: Jun 24 2025 at 11:41 AM PDTNext Issuance: Jun 25 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:  06/24/2025 at 11:41 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/19/2025 at 06:00 PM PDT
# Maximum Observed Stage:                       3.44 Feet
# Maximum Observed Flow:                        2265 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/24/2025 at 11:00 AM PDT
# Maximum Forecast Stage:                       3.26 Feet
# Maximum Forecast Flow:                        2098 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/19/2025 11 AM PDT            3.44           2265                        Normal
  06/19/2025 12 PM PDT            3.44           2265         0              Normal
  06/19/2025 01 PM PDT            3.44           2265         0              Normal
  06/19/2025 02 PM PDT            3.43           2255         -              Normal
  06/19/2025 03 PM PDT            3.44           2265         +              Normal
  06/19/2025 04 PM PDT            3.44           2265         0              Normal
  06/19/2025 05 PM PDT            3.44           2265         0              Normal
  06/19/2025 06 PM PDT            3.44           2265         0              Normal
  06/19/2025 07 PM PDT            3.43           2255         -              Normal
  06/19/2025 08 PM PDT            3.43           2255         0              Normal
  06/19/2025 09 PM PDT            3.42           2246         -              Normal
  06/19/2025 10 PM PDT            3.40           2227         -              Normal
  06/19/2025 11 PM PDT            3.39           2217         -              Normal
  06/20/2025 12 AM PDT            3.41           2236         +              Normal
  06/20/2025 01 AM PDT            3.40           2227         -              Normal
  06/20/2025 02 AM PDT            3.41           2236         +              Normal
  06/20/2025 03 AM PDT            3.40           2227         -              Normal
  06/20/2025 04 AM PDT            3.40           2227         0              Normal
  06/20/2025 05 AM PDT            3.41           2236         +              Normal
  06/20/2025 06 AM PDT            3.42           2246         +              Normal
  06/20/2025 07 AM PDT            3.41           2236         -              Normal
  06/20/2025 08 AM PDT            3.40           2227         -              Normal
  06/20/2025 09 AM PDT            3.39           2217         -              Normal
  06/20/2025 10 AM PDT            3.39           2217         0              Normal
  06/20/2025 11 AM PDT            3.39           2217         0              Normal
  06/20/2025 12 PM PDT            3.40           2227         +              Normal
  06/20/2025 01 PM PDT            3.41           2236         +              Normal
  06/20/2025 02 PM PDT            3.41           2236         0              Normal
  06/20/2025 03 PM PDT            3.42           2246         +              Normal
  06/20/2025 04 PM PDT            3.41           2236         -              Normal
  06/20/2025 05 PM PDT            3.41           2236         0              Normal
  06/20/2025 06 PM PDT            3.40           2227         -              Normal
  06/20/2025 07 PM PDT            3.40           2227         0              Normal
  06/20/2025 08 PM PDT            3.40           2227         0              Normal
  06/20/2025 09 PM PDT            3.40           2227         0              Normal
  06/20/2025 10 PM PDT            3.39           2217         -              Normal
  06/20/2025 11 PM PDT            3.40           2227         +              Normal
  06/21/2025 12 AM PDT            3.40           2227         0              Normal
  06/21/2025 01 AM PDT            3.40           2227         0              Normal
  06/21/2025 02 AM PDT            3.39           2217         -              Normal
  06/21/2025 03 AM PDT            3.40           2227         +              Normal
  06/21/2025 04 AM PDT            3.40           2227         0              Normal
  06/21/2025 05 AM PDT            3.41           2236         +              Normal
  06/21/2025 06 AM PDT            3.41           2236         0              Normal
  06/21/2025 07 AM PDT            3.41           2236         0              Normal
  06/21/2025 08 AM PDT            3.41           2236         0              Normal
  06/21/2025 09 AM PDT            3.42           2246         +              Normal
  06/21/2025 10 AM PDT            3.41           2236         -              Normal
  06/21/2025 11 AM PDT            3.41           2236         0              Normal
  06/21/2025 12 PM PDT            3.41           2236         0              Normal
  06/21/2025 01 PM PDT            3.41           2236         0              Normal
  06/21/2025 02 PM PDT            3.41           2236         0              Normal
  06/21/2025 03 PM PDT            3.41           2236         0              Normal
  06/21/2025 04 PM PDT            3.41           2236         0              Normal
  06/21/2025 05 PM PDT            3.42           2246         +              Normal
  06/21/2025 06 PM PDT            3.40           2227         -              Normal
  06/21/2025 07 PM PDT            3.41           2236         +              Normal
  06/21/2025 08 PM PDT            3.41           2236         0              Normal
  06/21/2025 09 PM PDT            3.41           2236         0              Normal
  06/21/2025 10 PM PDT            3.41           2236         0              Normal
  06/21/2025 11 PM PDT            3.40           2227         -              Normal
  06/22/2025 12 AM PDT            3.40           2227         0              Normal
  06/22/2025 01 AM PDT            3.40           2227         0              Normal
  06/22/2025 02 AM PDT            3.39           2217         -              Normal
  06/22/2025 03 AM PDT            3.40           2227         +              Normal
  06/22/2025 04 AM PDT            3.40           2227         0              Normal
  06/22/2025 05 AM PDT            3.40           2227         0              Normal
  06/22/2025 06 AM PDT            3.41           2236         +              Normal
  06/22/2025 07 AM PDT            3.40           2227         -              Normal
  06/22/2025 08 AM PDT            3.39           2217         -              Normal
  06/22/2025 09 AM PDT            3.41           2236         +              Normal
  06/22/2025 10 AM PDT            3.41           2236         0              Normal
  06/22/2025 11 AM PDT            3.40           2227         -              Normal
  06/22/2025 12 PM PDT            3.41           2236         +              Normal
  06/22/2025 01 PM PDT            3.40           2227         -              Normal
  06/22/2025 02 PM PDT            3.41           2236         +              Normal
  06/22/2025 03 PM PDT            3.40           2227         -              Normal
  06/22/2025 04 PM PDT            3.40           2227         0              Normal
  06/22/2025 05 PM PDT            3.40           2227         0              Normal
  06/22/2025 06 PM PDT            3.39           2217         -              Normal
  06/22/2025 07 PM PDT            3.40           2227         +              Normal
  06/22/2025 08 PM PDT            3.38           2208         -              Normal
  06/22/2025 09 PM PDT            3.39           2217         +              Normal
  06/22/2025 10 PM PDT            3.38           2208         -              Normal
  06/22/2025 11 PM PDT            3.38           2208         0              Normal
  06/23/2025 12 AM PDT            3.37           2199         -              Normal
  06/23/2025 01 AM PDT            3.37           2199         0              Normal
  06/23/2025 02 AM PDT            3.37           2199         0              Normal
  06/23/2025 03 AM PDT            3.36           2189         -              Normal
  06/23/2025 04 AM PDT            3.36           2189         0              Normal
  06/23/2025 05 AM PDT            3.37           2199         +              Normal
  06/23/2025 06 AM PDT            3.37           2199         0              Normal
  06/23/2025 07 AM PDT            3.37           2199         0              Normal
  06/23/2025 08 AM PDT            3.36           2189         -              Normal
  06/23/2025 09 AM PDT            3.36           2189         0              Normal
  06/23/2025 10 AM PDT            3.37           2199         +              Normal
  06/23/2025 11 AM PDT            3.36           2189         -              Normal
  06/23/2025 12 PM PDT            3.36           2189         0              Normal
  06/23/2025 01 PM PDT            3.37           2199         +              Normal
  06/23/2025 02 PM PDT            3.37           2199         0              Normal
  06/23/2025 03 PM PDT            3.37           2199         0              Normal
  06/23/2025 04 PM PDT            3.36           2189         -              Normal
  06/23/2025 05 PM PDT            3.37           2199         +              Normal
  06/23/2025 06 PM PDT            3.35           2180         -              Normal
  06/23/2025 07 PM PDT            3.33           2162         -              Normal
  06/23/2025 08 PM PDT            3.34           2171         +              Normal
  06/23/2025 09 PM PDT            3.33           2162         -              Normal
  06/23/2025 10 PM PDT            3.33           2162         0              Normal
  06/23/2025 11 PM PDT            3.32           2152         -              Normal
  06/24/2025 12 AM PDT            3.32           2152         0              Normal
  06/24/2025 01 AM PDT            3.31           2143         -              Normal
  06/24/2025 02 AM PDT            3.29           2125         -              Normal
  06/24/2025 03 AM PDT            3.30           2134         +              Normal
  06/24/2025 04 AM PDT            3.29           2125         -              Normal
  06/24/2025 05 AM PDT            3.30           2134         +              Normal
  06/24/2025 06 AM PDT            3.29           2125         -              Normal
  06/24/2025 07 AM PDT            3.29           2125         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/24/2025 11 AM PDT            3.26           2098                        Normal
  06/24/2025 12 PM PDT            3.25           2088         -              Normal
  06/24/2025 01 PM PDT            3.23           2070         -              Normal
  06/24/2025 02 PM PDT            3.22           2061         -              Normal
  06/24/2025 03 PM PDT            3.21           2052         -              Normal
  06/24/2025 04 PM PDT            3.20           2043         -              Normal
  06/24/2025 05 PM PDT            3.19           2035         -              Normal
  06/24/2025 06 PM PDT            3.18           2026         -              Normal
  06/24/2025 07 PM PDT            3.18           2026         0              Normal
  06/24/2025 08 PM PDT            3.17           2017         -              Normal
  06/24/2025 09 PM PDT            3.17           2017         0              Normal
  06/24/2025 10 PM PDT            3.16           2008         -              Normal
  06/24/2025 11 PM PDT            3.16           2008         0              Normal
  06/25/2025 12 AM PDT            3.16           2008         0              Normal
  06/25/2025 01 AM PDT            3.15           1999         -              Normal
  06/25/2025 02 AM PDT            3.15           1999         0              Normal
  06/25/2025 03 AM PDT            3.15           1999         0              Normal
  06/25/2025 04 AM PDT            3.15           1999         0              Normal
  06/25/2025 05 AM PDT            3.15           1999         0              Normal
  06/25/2025 06 AM PDT            3.15           1999         0              Normal
  06/25/2025 07 AM PDT            3.14           1990         -              Normal
  06/25/2025 08 AM PDT            3.14           1990         0              Normal
  06/25/2025 09 AM PDT            3.14           1990         0              Normal
  06/25/2025 10 AM PDT            3.14           1990         0              Normal
  06/25/2025 11 AM PDT            3.14           1990         0              Normal
  06/25/2025 12 PM PDT            3.13           1981         -              Normal
  06/25/2025 01 PM PDT            3.13           1981         0              Normal
  06/25/2025 02 PM PDT            3.13           1981         0              Normal
  06/25/2025 03 PM PDT            3.13           1981         0              Normal
  06/25/2025 04 PM PDT            3.13           1981         0              Normal
  06/25/2025 05 PM PDT            3.13           1981         0              Normal
  06/25/2025 06 PM PDT            3.13           1981         0              Normal
  06/25/2025 07 PM PDT            3.13           1981         0              Normal
  06/25/2025 08 PM PDT            3.13           1981         0              Normal
  06/25/2025 09 PM PDT            3.12           1973         -              Normal
  06/25/2025 10 PM PDT            3.12           1973         0              Normal
  06/25/2025 11 PM PDT            3.12           1973         0              Normal
  06/26/2025 12 AM PDT            3.12           1973         0              Normal
  06/26/2025 01 AM PDT            3.12           1973         0              Normal
  06/26/2025 02 AM PDT            3.12           1973         0              Normal
  06/26/2025 03 AM PDT            3.12           1973         0              Normal
  06/26/2025 04 AM PDT            3.12           1973         0              Normal
  06/26/2025 05 AM PDT            3.12           1973         0              Normal
  06/26/2025 06 AM PDT            3.12           1973         0              Normal
  06/26/2025 07 AM PDT            3.12           1973         0              Normal
  06/26/2025 08 AM PDT            3.12           1973         0              Normal
  06/26/2025 09 AM PDT            3.12           1973         0              Normal
  06/26/2025 10 AM PDT            3.12           1973         0              Normal
  06/26/2025 11 AM PDT            3.11           1964         -              Normal
  06/26/2025 12 PM PDT            3.11           1964         0              Normal
  06/26/2025 01 PM PDT            3.11           1964         0              Normal
  06/26/2025 02 PM PDT            3.11           1964         0              Normal
  06/26/2025 03 PM PDT            3.11           1964         0              Normal
  06/26/2025 04 PM PDT            3.11           1964         0              Normal
  06/26/2025 05 PM PDT            3.10           1955         -              Normal
  06/26/2025 06 PM PDT            3.10           1955         0              Normal
  06/26/2025 07 PM PDT            3.10           1955         0              Normal
  06/26/2025 08 PM PDT            3.10           1955         0              Normal
  06/26/2025 09 PM PDT            3.10           1955         0              Normal
  06/26/2025 10 PM PDT            3.10           1955         0              Normal
  06/26/2025 11 PM PDT            3.10           1955         0              Normal
  06/27/2025 12 AM PDT            3.09           1946         -              Normal
  06/27/2025 01 AM PDT            3.09           1946         0              Normal
  06/27/2025 02 AM PDT            3.09           1946         0              Normal
  06/27/2025 03 AM PDT            3.09           1946         0              Normal
  06/27/2025 04 AM PDT            3.09           1946         0              Normal
  06/27/2025 05 AM PDT            3.09           1946         0              Normal
  06/27/2025 06 AM PDT            3.09           1946         0              Normal
  06/27/2025 07 AM PDT            3.09           1946         0              Normal
  06/27/2025 08 AM PDT            3.09           1946         0              Normal
  06/27/2025 09 AM PDT            3.09           1946         0              Normal
  06/27/2025 10 AM PDT            3.08           1938         -              Normal
  06/27/2025 11 AM PDT            3.08           1938         0              Normal
  06/27/2025 12 PM PDT            3.08           1938         0              Normal
  06/27/2025 01 PM PDT            3.08           1938         0              Normal
  06/27/2025 02 PM PDT            3.08           1938         0              Normal
  06/27/2025 03 PM PDT            3.08           1938         0              Normal
  06/27/2025 04 PM PDT            3.08           1938         0              Normal
  06/27/2025 05 PM PDT            3.07           1929         -              Normal
  06/27/2025 06 PM PDT            3.07           1929         0              Normal
  06/27/2025 07 PM PDT            3.07           1929         0              Normal
  06/27/2025 08 PM PDT            3.07           1929         0              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            3.06           1920         -              Normal
  06/28/2025 12 AM PDT            3.06           1920         0              Normal
  06/28/2025 01 AM PDT            3.06           1920         0              Normal
  06/28/2025 02 AM PDT            3.06           1920         0              Normal
  06/28/2025 03 AM PDT            3.06           1920         0              Normal
  06/28/2025 04 AM PDT            3.06           1920         0              Normal
  06/28/2025 05 AM PDT            3.06           1920         0              Normal
  06/28/2025 06 AM PDT            3.06           1920         0              Normal
  06/28/2025 07 AM PDT            3.06           1920         0              Normal
  06/28/2025 08 AM PDT            3.06           1920         0              Normal
  06/28/2025 09 AM PDT            3.06           1920         0              Normal
  06/28/2025 10 AM PDT            3.06           1920         0              Normal
  06/28/2025 11 AM PDT            3.05           1912         -              Normal
  06/28/2025 12 PM PDT            3.05           1912         0              Normal
  06/28/2025 01 PM PDT            3.05           1912         0              Normal
  06/28/2025 02 PM PDT            3.05           1912         0              Normal
  06/28/2025 03 PM PDT            3.05           1912         0              Normal
  06/28/2025 04 PM PDT            3.05           1912         0              Normal
  06/28/2025 05 PM PDT            3.05           1912         0              Normal
  06/28/2025 06 PM PDT            3.04           1903         -              Normal
  06/28/2025 07 PM PDT            3.04           1903         0              Normal
  06/28/2025 08 PM PDT            3.04           1903         0              Normal
  06/28/2025 09 PM PDT            3.04           1903         0              Normal
  06/28/2025 10 PM PDT            3.04           1903         0              Normal
  06/28/2025 11 PM PDT            3.04           1903         0              Normal
  06/29/2025 12 AM PDT            3.04           1903         0              Normal
  06/29/2025 01 AM PDT            3.04           1903         0              Normal
  06/29/2025 02 AM PDT            3.04           1903         0              Normal
  06/29/2025 03 AM PDT            3.03           1895         -              Normal
  06/29/2025 04 AM PDT            3.03           1895         0              Normal
  06/29/2025 05 AM PDT            3.03           1895         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.