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: Feb 07 2026 at 9:03 AM PSTNext Issuance: Feb 08 2026 at 9:00 AM PST
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:  02/07/2026 at 09:03 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/03/2026 at 03:00 PM PST
# Maximum Observed Stage:                       3.22 Feet
# Maximum Observed Flow:                        2061 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/09/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       4.00 Feet
# Maximum Forecast Flow:                        2830 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/02/2026 09 AM PST            3.14           1990                        Normal
  02/02/2026 10 AM PST            3.15           1999         +              Normal
  02/02/2026 11 AM PST            3.16           2008         +              Normal
  02/02/2026 12 PM PST            3.17           2017         +              Normal
  02/02/2026 01 PM PST            3.19           2035         +              Normal
  02/02/2026 02 PM PST            3.18           2026         -              Normal
  02/02/2026 03 PM PST            3.16           2008         -              Normal
  02/02/2026 04 PM PST            3.15           1999         -              Normal
  02/02/2026 05 PM PST            3.16           2008         +              Normal
  02/02/2026 06 PM PST            3.15           1999         -              Normal
  02/02/2026 07 PM PST            3.14           1990         -              Normal
  02/02/2026 08 PM PST            3.15           1999         +              Normal
  02/02/2026 09 PM PST            3.14           1990         -              Normal
  02/02/2026 10 PM PST            3.13           1981         -              Normal
  02/02/2026 11 PM PST            3.14           1990         +              Normal
  02/03/2026 12 AM PST            3.14           1990         0              Normal
  02/03/2026 01 AM PST            3.13           1981         -              Normal
  02/03/2026 02 AM PST            3.13           1981         0              Normal
  02/03/2026 03 AM PST            3.13           1981         0              Normal
  02/03/2026 04 AM PST            3.13           1981         0              Normal
  02/03/2026 05 AM PST            3.13           1981         0              Normal
  02/03/2026 06 AM PST            3.12           1973         -              Normal
  02/03/2026 07 AM PST            3.12           1973         0              Normal
  02/03/2026 08 AM PST            3.12           1973         0              Normal
  02/03/2026 09 AM PST            3.12           1973         0              Normal
  02/03/2026 10 AM PST            3.12           1973         0              Normal
  02/03/2026 11 AM PST            3.13           1981         +              Normal
  02/03/2026 12 PM PST            3.15           1999         +              Normal
  02/03/2026 01 PM PST            3.17           2017         +              Normal
  02/03/2026 02 PM PST            3.16           2008         -              Normal
  02/03/2026 03 PM PST            3.22           2061         +              Normal
  02/03/2026 04 PM PST            3.21           2052         -              Normal
  02/03/2026 05 PM PST            3.18           2026         -              Normal
  02/03/2026 06 PM PST            3.13           1981         -              Normal
  02/03/2026 07 PM PST            3.13           1981         0              Normal
  02/03/2026 08 PM PST            3.12           1973         -              Normal
  02/03/2026 09 PM PST            3.12           1973         0              Normal
  02/03/2026 10 PM PST            3.11           1964         -              Normal
  02/03/2026 11 PM PST            3.11           1964         0              Normal
  02/04/2026 12 AM PST            3.11           1964         0              Normal
  02/04/2026 01 AM PST            3.10           1955         -              Normal
  02/04/2026 02 AM PST            3.11           1964         +              Normal
  02/04/2026 03 AM PST            3.10           1955         -              Normal
  02/04/2026 04 AM PST            3.10           1955         0              Normal
  02/04/2026 05 AM PST            3.10           1955         0              Normal
  02/04/2026 06 AM PST            3.10           1955         0              Normal
  02/04/2026 07 AM PST            3.10           1955         0              Normal
  02/04/2026 08 AM PST            3.11           1964         +              Normal
  02/04/2026 09 AM PST            3.09           1946         -              Normal
  02/04/2026 10 AM PST            3.09           1946         0              Normal
  02/04/2026 11 AM PST            3.13           1981         +              Normal
  02/04/2026 12 PM PST            3.17           2017         +              Normal
  02/04/2026 01 PM PST            3.19           2035         +              Normal
  02/04/2026 02 PM PST            3.14           1990         -              Normal
  02/04/2026 03 PM PST            3.09           1946         -              Normal
  02/04/2026 04 PM PST            3.09           1946         0              Normal
  02/04/2026 05 PM PST            3.08           1938         -              Normal
  02/04/2026 06 PM PST            3.08           1938         0              Normal
  02/04/2026 07 PM PST            3.07           1929         -              Normal
  02/04/2026 08 PM PST            3.07           1929         0              Normal
  02/04/2026 09 PM PST            3.07           1929         0              Normal
  02/04/2026 10 PM PST            3.07           1929         0              Normal
  02/04/2026 11 PM PST            3.06           1920         -              Normal
  02/05/2026 12 AM PST            3.07           1929         +              Normal
  02/05/2026 01 AM PST            3.06           1920         -              Normal
  02/05/2026 02 AM PST            3.07           1929         +              Normal
  02/05/2026 03 AM PST            3.06           1920         -              Normal
  02/05/2026 04 AM PST            3.06           1920         0              Normal
  02/05/2026 05 AM PST            3.06           1920         0              Normal
  02/05/2026 06 AM PST            3.07           1929         +              Normal
  02/05/2026 07 AM PST            3.07           1929         0              Normal
  02/05/2026 08 AM PST            3.06           1920         -              Normal
  02/05/2026 09 AM PST            3.06           1920         0              Normal
  02/05/2026 10 AM PST            3.06           1920         0              Normal
  02/05/2026 11 AM PST            3.07           1929         +              Normal
  02/05/2026 12 PM PST            3.08           1938         +              Normal
  02/05/2026 01 PM PST            3.08           1938         0              Normal
  02/05/2026 02 PM PST            3.08           1938         0              Normal
  02/05/2026 03 PM PST            3.08           1938         0              Normal
  02/05/2026 04 PM PST            3.06           1920         -              Normal
  02/05/2026 05 PM PST            3.05           1912         -              Normal
  02/05/2026 06 PM PST            3.05           1912         0              Normal
  02/05/2026 07 PM PST            3.04           1903         -              Normal
  02/05/2026 08 PM PST            3.04           1903         0              Normal
  02/05/2026 09 PM PST            3.04           1903         0              Normal
  02/05/2026 10 PM PST            3.04           1903         0              Normal
  02/05/2026 11 PM PST            3.03           1895         -              Normal
  02/06/2026 12 AM PST            3.03           1895         0              Normal
  02/06/2026 01 AM PST            3.03           1895         0              Normal
  02/06/2026 02 AM PST            3.03           1895         0              Normal
  02/06/2026 03 AM PST            3.03           1895         0              Normal
  02/06/2026 04 AM PST            3.04           1903         +              Normal
  02/06/2026 05 AM PST            3.03           1895         -              Normal
  02/06/2026 06 AM PST            3.03           1895         0              Normal
  02/06/2026 07 AM PST            3.03           1895         0              Normal
  02/06/2026 08 AM PST            3.02           1886         -              Normal
  02/06/2026 09 AM PST            3.03           1895         +              Normal
  02/06/2026 10 AM PST            3.03           1895         0              Normal
  02/06/2026 11 AM PST            3.04           1903         +              Normal
  02/06/2026 12 PM PST            3.04           1903         0              Normal
  02/06/2026 01 PM PST            3.04           1903         0              Normal
  02/06/2026 02 PM PST            3.04           1903         0              Normal
  02/06/2026 03 PM PST            3.06           1920         +              Normal
  02/06/2026 04 PM PST            3.05           1912         -              Normal
  02/06/2026 05 PM PST            3.04           1903         -              Normal
  02/06/2026 06 PM PST            3.03           1895         -              Normal
  02/06/2026 07 PM PST            3.03           1895         0              Normal
  02/06/2026 08 PM PST            3.03           1895         0              Normal
  02/06/2026 09 PM PST            3.03           1895         0              Normal
  02/06/2026 10 PM PST            3.02           1886         -              Normal
  02/06/2026 11 PM PST            3.02           1886         0              Normal
  02/07/2026 12 AM PST            3.02           1886         0              Normal
  02/07/2026 01 AM PST            3.02           1886         0              Normal
  02/07/2026 02 AM PST            3.02           1886         0              Normal
  02/07/2026 03 AM PST            3.02           1886         0              Normal
  02/07/2026 04 AM PST            3.02           1886         0              Normal
  02/07/2026 05 AM PST            3.01           1877         -              Normal
  02/07/2026 06 AM PST            3.02           1886         +              Normal
  02/07/2026 07 AM PST            3.01           1877         -              Normal
  02/07/2026 08 AM PST            3.01           1877         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/07/2026 09 AM PST            3.01           1877                        Normal
  02/07/2026 10 AM PST            3.01           1877         0              Normal
  02/07/2026 11 AM PST            3.01           1877         0              Normal
  02/07/2026 12 PM PST            3.01           1877         0              Normal
  02/07/2026 01 PM PST            3.01           1877         0              Normal
  02/07/2026 02 PM PST            3.01           1877         0              Normal
  02/07/2026 03 PM PST            3.00           1869         -              Normal
  02/07/2026 04 PM PST            3.00           1869         0              Normal
  02/07/2026 05 PM PST            3.00           1869         0              Normal
  02/07/2026 06 PM PST            2.99           1860         -              Normal
  02/07/2026 07 PM PST            2.99           1860         0              Normal
  02/07/2026 08 PM PST            2.99           1860         0              Normal
  02/07/2026 09 PM PST            2.99           1860         0              Normal
  02/07/2026 10 PM PST            2.99           1860         0              Normal
  02/07/2026 11 PM PST            2.99           1860         0              Normal
  02/08/2026 12 AM PST            2.99           1860         0              Normal
  02/08/2026 01 AM PST            2.98           1852         -              Normal
  02/08/2026 02 AM PST            2.98           1852         0              Normal
  02/08/2026 03 AM PST            2.98           1852         0              Normal
  02/08/2026 04 AM PST            2.98           1852         0              Normal
  02/08/2026 05 AM PST            2.98           1852         0              Normal
  02/08/2026 06 AM PST            2.97           1844         -              Normal
  02/08/2026 07 AM PST            2.97           1844         0              Normal
  02/08/2026 08 AM PST            2.97           1844         0              Normal
  02/08/2026 09 AM PST            2.97           1844         0              Normal
  02/08/2026 10 AM PST            2.98           1852         +              Normal
  02/08/2026 11 AM PST            2.98           1852         0              Normal
  02/08/2026 12 PM PST            2.99           1860         +              Normal
  02/08/2026 01 PM PST            3.01           1877         +              Normal
  02/08/2026 02 PM PST            3.03           1895         +              Normal
  02/08/2026 03 PM PST            3.06           1920         +              Normal
  02/08/2026 04 PM PST            3.10           1955         +              Normal
  02/08/2026 05 PM PST            3.14           1990         +              Normal
  02/08/2026 06 PM PST            3.21           2052         +              Normal
  02/08/2026 07 PM PST            3.28           2116         +              Normal
  02/08/2026 08 PM PST            3.36           2189         +              Normal
  02/08/2026 09 PM PST            3.43           2255         +              Normal
  02/08/2026 10 PM PST            3.51           2331         +              Normal
  02/08/2026 11 PM PST            3.60           2419         +              Normal
  02/09/2026 12 AM PST            3.67           2488         +              Normal
  02/09/2026 01 AM PST            3.72           2539         +              Normal
  02/09/2026 02 AM PST            3.76           2579         +              Normal
  02/09/2026 03 AM PST            3.79           2610         +              Normal
  02/09/2026 04 AM PST            3.82           2641         +              Normal
  02/09/2026 05 AM PST            3.84           2661         +              Normal
  02/09/2026 06 AM PST            3.87           2693         +              Normal
  02/09/2026 07 AM PST            3.89           2714         +              Normal
  02/09/2026 08 AM PST            3.91           2735         +              Normal
  02/09/2026 09 AM PST            3.93           2756         +              Normal
  02/09/2026 10 AM PST            3.95           2777         +              Normal
  02/09/2026 11 AM PST            3.96           2788         +              Normal
  02/09/2026 12 PM PST            3.98           2809         +              Normal
  02/09/2026 01 PM PST            3.99           2820         +              Normal
  02/09/2026 02 PM PST            4.00           2830         +              Normal
  02/09/2026 03 PM PST            4.00           2830         0              Normal
  02/09/2026 04 PM PST            4.00           2830         0              Normal
  02/09/2026 05 PM PST            4.00           2830         0              Normal
  02/09/2026 06 PM PST            3.99           2820         -              Normal
  02/09/2026 07 PM PST            3.99           2820         0              Normal
  02/09/2026 08 PM PST            3.99           2820         0              Normal
  02/09/2026 09 PM PST            3.98           2809         -              Normal
  02/09/2026 10 PM PST            3.97           2798         -              Normal
  02/09/2026 11 PM PST            3.96           2788         -              Normal
  02/10/2026 12 AM PST            3.94           2766         -              Normal
  02/10/2026 01 AM PST            3.93           2756         -              Normal
  02/10/2026 02 AM PST            3.92           2745         -              Normal
  02/10/2026 03 AM PST            3.90           2724         -              Normal
  02/10/2026 04 AM PST            3.88           2703         -              Normal
  02/10/2026 05 AM PST            3.86           2682         -              Normal
  02/10/2026 06 AM PST            3.85           2672         -              Normal
  02/10/2026 07 AM PST            3.83           2651         -              Normal
  02/10/2026 08 AM PST            3.81           2630         -              Normal
  02/10/2026 09 AM PST            3.79           2610         -              Normal
  02/10/2026 10 AM PST            3.77           2589         -              Normal
  02/10/2026 11 AM PST            3.75           2569         -              Normal
  02/10/2026 12 PM PST            3.73           2549         -              Normal
  02/10/2026 01 PM PST            3.71           2528         -              Normal
  02/10/2026 02 PM PST            3.69           2508         -              Normal
  02/10/2026 03 PM PST            3.67           2488         -              Normal
  02/10/2026 04 PM PST            3.65           2468         -              Normal
  02/10/2026 05 PM PST            3.62           2439         -              Normal
  02/10/2026 06 PM PST            3.60           2419         -              Normal
  02/10/2026 07 PM PST            3.58           2399         -              Normal
  02/10/2026 08 PM PST            3.56           2380         -              Normal
  02/10/2026 09 PM PST            3.55           2370         -              Normal
  02/10/2026 10 PM PST            3.53           2351         -              Normal
  02/10/2026 11 PM PST            3.51           2331         -              Normal
  02/11/2026 12 AM PST            3.50           2322         -              Normal
  02/11/2026 01 AM PST            3.48           2303         -              Normal
  02/11/2026 02 AM PST            3.47           2293         -              Normal
  02/11/2026 03 AM PST            3.45           2274         -              Normal
  02/11/2026 04 AM PST            3.44           2265         -              Normal
  02/11/2026 05 AM PST            3.43           2255         -              Normal
  02/11/2026 06 AM PST            3.42           2246         -              Normal
  02/11/2026 07 AM PST            3.40           2227         -              Normal
  02/11/2026 08 AM PST            3.39           2217         -              Normal
  02/11/2026 09 AM PST            3.38           2208         -              Normal
  02/11/2026 10 AM PST            3.37           2199         -              Normal
  02/11/2026 11 AM PST            3.36           2189         -              Normal
  02/11/2026 12 PM PST            3.35           2180         -              Normal
  02/11/2026 01 PM PST            3.34           2171         -              Normal
  02/11/2026 02 PM PST            3.33           2162         -              Normal
  02/11/2026 03 PM PST            3.32           2152         -              Normal
  02/11/2026 04 PM PST            3.31           2143         -              Normal
  02/11/2026 05 PM PST            3.31           2143         0              Normal
  02/11/2026 06 PM PST            3.30           2134         -              Normal
  02/11/2026 07 PM PST            3.29           2125         -              Normal
  02/11/2026 08 PM PST            3.28           2116         -              Normal
  02/11/2026 09 PM PST            3.27           2107         -              Normal
  02/11/2026 10 PM PST            3.27           2107         0              Normal
  02/11/2026 11 PM PST            3.26           2098         -              Normal
  02/12/2026 12 AM PST            3.25           2088         -              Normal
  02/12/2026 01 AM PST            3.25           2088         0              Normal
  02/12/2026 02 AM PST            3.24           2079         -              Normal
  02/12/2026 03 AM PST            3.24           2079         0              Normal
  02/12/2026 04 AM PST            3.23           2070         -              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.