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: May 03 2025 at 9:58 AM PDTNext Issuance: May 04 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:  05/03/2025 at 09:58 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/03/2025 at 07:00 AM PDT
# Maximum Observed Stage:                       7.44 Feet
# Maximum Observed Flow:                        7941 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/03/2025 at 11:00 AM PDT
# Maximum Forecast Stage:                       7.44 Feet
# Maximum Forecast Flow:                        7941 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/28/2025 09 AM PDT            7.09           7286                        Normal
  04/28/2025 10 AM PDT            7.05           7213         -              Normal
  04/28/2025 11 AM PDT            7.07           7250         +              Normal
  04/28/2025 12 PM PDT            7.07           7250         0              Normal
  04/28/2025 01 PM PDT            7.05           7213         -              Normal
  04/28/2025 02 PM PDT            7.06           7232         +              Normal
  04/28/2025 03 PM PDT            7.05           7213         -              Normal
  04/28/2025 04 PM PDT            7.04           7195         -              Normal
  04/28/2025 05 PM PDT            7.05           7213         +              Normal
  04/28/2025 06 PM PDT            7.03           7177         -              Normal
  04/28/2025 07 PM PDT            7.01           7141         -              Normal
  04/28/2025 08 PM PDT            7.03           7177         +              Normal
  04/28/2025 09 PM PDT            7.01           7141         -              Normal
  04/28/2025 10 PM PDT            7.01           7141         0              Normal
  04/28/2025 11 PM PDT            7.02           7159         +              Normal
  04/29/2025 12 AM PDT            7.04           7195         +              Normal
  04/29/2025 01 AM PDT            7.00           7123         -              Normal
  04/29/2025 02 AM PDT            7.01           7141         +              Normal
  04/29/2025 03 AM PDT            7.02           7159         +              Normal
  04/29/2025 04 AM PDT            7.01           7141         -              Normal
  04/29/2025 05 AM PDT            6.96           7051         -              Normal
  04/29/2025 06 AM PDT            6.92           6980         -              Normal
  04/29/2025 07 AM PDT            6.89           6926         -              Normal
  04/29/2025 08 AM PDT            6.88           6909         -              Normal
  04/29/2025 09 AM PDT            6.88           6909         0              Normal
  04/29/2025 10 AM PDT            6.87           6891         -              Normal
  04/29/2025 11 AM PDT            6.87           6891         0              Normal
  04/29/2025 12 PM PDT            6.87           6891         0              Normal
  04/29/2025 01 PM PDT            6.83           6821         -              Normal
  04/29/2025 02 PM PDT            6.86           6873         +              Normal
  04/29/2025 03 PM PDT            6.86           6873         0              Normal
  04/29/2025 04 PM PDT            6.84           6838         -              Normal
  04/29/2025 05 PM PDT            6.84           6838         0              Normal
  04/29/2025 06 PM PDT            6.85           6856         +              Normal
  04/29/2025 07 PM PDT            6.84           6838         -              Normal
  04/29/2025 08 PM PDT            6.84           6838         0              Normal
  04/29/2025 09 PM PDT            6.83           6821         -              Normal
  04/29/2025 10 PM PDT            6.82           6803         -              Normal
  04/29/2025 11 PM PDT            6.84           6838         +              Normal
  04/30/2025 12 AM PDT            6.84           6838         0              Normal
  04/30/2025 01 AM PDT            6.85           6856         +              Normal
  04/30/2025 02 AM PDT            6.87           6891         +              Normal
  04/30/2025 03 AM PDT            6.88           6909         +              Normal
  04/30/2025 04 AM PDT            6.87           6891         -              Normal
  04/30/2025 05 AM PDT            6.86           6873         -              Normal
  04/30/2025 06 AM PDT            6.86           6873         0              Normal
  04/30/2025 07 AM PDT            6.86           6873         0              Normal
  04/30/2025 08 AM PDT            6.82           6803         -              Normal
  04/30/2025 09 AM PDT            6.86           6873         +              Normal
  04/30/2025 10 AM PDT            6.85           6856         -              Normal
  04/30/2025 11 AM PDT            6.84           6838         -              Normal
  04/30/2025 12 PM PDT            6.82           6803         -              Normal
  04/30/2025 01 PM PDT            6.84           6838         +              Normal
  04/30/2025 02 PM PDT            6.83           6821         -              Normal
  04/30/2025 03 PM PDT            6.86           6873         +              Normal
  04/30/2025 04 PM PDT            6.86           6873         0              Normal
  04/30/2025 05 PM PDT            6.84           6838         -              Normal
  04/30/2025 06 PM PDT            6.85           6856         +              Normal
  04/30/2025 07 PM PDT            6.85           6856         0              Normal
  04/30/2025 08 PM PDT            6.84           6838         -              Normal
  04/30/2025 09 PM PDT            6.85           6856         +              Normal
  04/30/2025 10 PM PDT            6.85           6856         0              Normal
  04/30/2025 11 PM PDT            6.84           6838         -              Normal
  05/01/2025 12 AM PDT            6.87           6891         +              Normal
  05/01/2025 01 AM PDT            6.86           6873         -              Normal
  05/01/2025 02 AM PDT            6.86           6873         0              Normal
  05/01/2025 03 AM PDT            6.88           6909         +              Normal
  05/01/2025 04 AM PDT            6.86           6873         -              Normal
  05/01/2025 05 AM PDT            6.85           6856         -              Normal
  05/01/2025 06 AM PDT            6.86           6873         +              Normal
  05/01/2025 07 AM PDT            6.84           6838         -              Normal
  05/01/2025 08 AM PDT            6.83           6821         -              Normal
  05/01/2025 09 AM PDT            6.83           6821         0              Normal
  05/01/2025 10 AM PDT            6.83           6821         0              Normal
  05/01/2025 11 AM PDT            6.86           6873         +              Normal
  05/01/2025 12 PM PDT            6.85           6856         -              Normal
  05/01/2025 01 PM PDT            6.86           6873         +              Normal
  05/01/2025 02 PM PDT            6.83           6821         -              Normal
  05/01/2025 03 PM PDT            6.83           6821         0              Normal
  05/01/2025 04 PM PDT            6.83           6821         0              Normal
  05/01/2025 05 PM PDT            6.84           6838         +              Normal
  05/01/2025 06 PM PDT            6.83           6821         -              Normal
  05/01/2025 07 PM PDT            6.84           6838         +              Normal
  05/01/2025 08 PM PDT            6.83           6821         -              Normal
  05/01/2025 09 PM PDT            6.83           6821         0              Normal
  05/01/2025 10 PM PDT            6.83           6821         0              Normal
  05/01/2025 11 PM PDT            6.85           6856         +              Normal
  05/02/2025 12 AM PDT            6.86           6873         +              Normal
  05/02/2025 01 AM PDT            6.89           6926         +              Normal
  05/02/2025 02 AM PDT            6.89           6926         0              Normal
  05/02/2025 03 AM PDT            6.89           6926         0              Normal
  05/02/2025 04 AM PDT            6.88           6909         -              Normal
  05/02/2025 05 AM PDT            6.96           7051         +              Normal
  05/02/2025 06 AM PDT            7.12           7341         +              Normal
  05/02/2025 07 AM PDT            7.26           7600         +              Normal
  05/02/2025 08 AM PDT            7.28           7638         +              Normal
  05/02/2025 09 AM PDT            7.30           7675         +              Normal
  05/02/2025 10 AM PDT            7.31           7694         +              Normal
  05/02/2025 11 AM PDT            7.31           7694         0              Normal
  05/02/2025 12 PM PDT            7.34           7750         +              Normal
  05/02/2025 01 PM PDT            7.34           7750         0              Normal
  05/02/2025 02 PM PDT            7.34           7750         0              Normal
  05/02/2025 03 PM PDT            7.34           7750         0              Normal
  05/02/2025 04 PM PDT            7.35           7769         +              Normal
  05/02/2025 05 PM PDT            7.34           7750         -              Normal
  05/02/2025 06 PM PDT            7.33           7732         -              Normal
  05/02/2025 07 PM PDT            7.32           7713         -              Normal
  05/02/2025 08 PM PDT            7.33           7732         +              Normal
  05/02/2025 09 PM PDT            7.34           7750         +              Normal
  05/02/2025 10 PM PDT            7.37           7807         +              Normal
  05/02/2025 11 PM PDT            7.38           7826         +              Normal
  05/03/2025 12 AM PDT            7.40           7864         +              Normal
  05/03/2025 01 AM PDT            7.42           7902         +              Normal
  05/03/2025 02 AM PDT            7.44           7941         +              Normal
  05/03/2025 03 AM PDT            7.43           7921         -              Normal
  05/03/2025 04 AM PDT            7.43           7921         0              Normal
  05/03/2025 05 AM PDT            7.43           7921         0              Normal
  05/03/2025 06 AM PDT            7.42           7902         -              Normal
  05/03/2025 07 AM PDT            7.44           7941         +              Normal
  05/03/2025 08 AM PDT            7.43           7921         -              Normal
  05/03/2025 09 AM PDT            7.43           7921         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/03/2025 10 AM PDT            7.43           7921                        Normal
  05/03/2025 11 AM PDT            7.44           7941         +              Normal
  05/03/2025 12 PM PDT            7.44           7941         0              Normal
  05/03/2025 01 PM PDT            7.44           7941         0              Normal
  05/03/2025 02 PM PDT            7.43           7921         -              Normal
  05/03/2025 03 PM PDT            7.43           7921         0              Normal
  05/03/2025 04 PM PDT            7.42           7902         -              Normal
  05/03/2025 05 PM PDT            7.41           7883         -              Normal
  05/03/2025 06 PM PDT            7.40           7864         -              Normal
  05/03/2025 07 PM PDT            7.39           7845         -              Normal
  05/03/2025 08 PM PDT            7.38           7826         -              Normal
  05/03/2025 09 PM PDT            7.37           7807         -              Normal
  05/03/2025 10 PM PDT            7.36           7788         -              Normal
  05/03/2025 11 PM PDT            7.35           7769         -              Normal
  05/04/2025 12 AM PDT            7.34           7750         -              Normal
  05/04/2025 01 AM PDT            7.33           7732         -              Normal
  05/04/2025 02 AM PDT            7.32           7713         -              Normal
  05/04/2025 03 AM PDT            7.32           7713         0              Normal
  05/04/2025 04 AM PDT            7.31           7694         -              Normal
  05/04/2025 05 AM PDT            7.30           7675         -              Normal
  05/04/2025 06 AM PDT            7.30           7675         0              Normal
  05/04/2025 07 AM PDT            7.29           7656         -              Normal
  05/04/2025 08 AM PDT            7.29           7656         0              Normal
  05/04/2025 09 AM PDT            7.28           7638         -              Normal
  05/04/2025 10 AM PDT            7.27           7619         -              Normal
  05/04/2025 11 AM PDT            7.26           7600         -              Normal
  05/04/2025 12 PM PDT            7.25           7581         -              Normal
  05/04/2025 01 PM PDT            7.24           7563         -              Normal
  05/04/2025 02 PM PDT            7.23           7544         -              Normal
  05/04/2025 03 PM PDT            7.22           7526         -              Normal
  05/04/2025 04 PM PDT            7.21           7507         -              Normal
  05/04/2025 05 PM PDT            7.20           7489         -              Normal
  05/04/2025 06 PM PDT            7.19           7470         -              Normal
  05/04/2025 07 PM PDT            7.18           7452         -              Normal
  05/04/2025 08 PM PDT            7.16           7415         -              Normal
  05/04/2025 09 PM PDT            7.15           7396         -              Normal
  05/04/2025 10 PM PDT            7.14           7378         -              Normal
  05/04/2025 11 PM PDT            7.12           7341         -              Normal
  05/05/2025 12 AM PDT            7.11           7323         -              Normal
  05/05/2025 01 AM PDT            7.10           7305         -              Normal
  05/05/2025 02 AM PDT            7.09           7286         -              Normal
  05/05/2025 03 AM PDT            7.08           7268         -              Normal
  05/05/2025 04 AM PDT            7.06           7232         -              Normal
  05/05/2025 05 AM PDT            7.05           7213         -              Normal
  05/05/2025 06 AM PDT            7.04           7195         -              Normal
  05/05/2025 07 AM PDT            7.03           7177         -              Normal
  05/05/2025 08 AM PDT            7.02           7159         -              Normal
  05/05/2025 09 AM PDT            7.01           7141         -              Normal
  05/05/2025 10 AM PDT            7.00           7123         -              Normal
  05/05/2025 11 AM PDT            6.99           7105         -              Normal
  05/05/2025 12 PM PDT            6.98           7087         -              Normal
  05/05/2025 01 PM PDT            6.97           7069         -              Normal
  05/05/2025 02 PM PDT            6.96           7051         -              Normal
  05/05/2025 03 PM PDT            6.95           7033         -              Normal
  05/05/2025 04 PM PDT            6.94           7015         -              Normal
  05/05/2025 05 PM PDT            6.93           6998         -              Normal
  05/05/2025 06 PM PDT            6.92           6980         -              Normal
  05/05/2025 07 PM PDT            6.91           6962         -              Normal
  05/05/2025 08 PM PDT            6.91           6962         0              Normal
  05/05/2025 09 PM PDT            6.90           6944         -              Normal
  05/05/2025 10 PM PDT            6.90           6944         0              Normal
  05/05/2025 11 PM PDT            6.90           6944         0              Normal
  05/06/2025 12 AM PDT            6.90           6944         0              Normal
  05/06/2025 01 AM PDT            6.90           6944         0              Normal
  05/06/2025 02 AM PDT            6.90           6944         0              Normal
  05/06/2025 03 AM PDT            6.90           6944         0              Normal
  05/06/2025 04 AM PDT            6.91           6962         +              Normal
  05/06/2025 05 AM PDT            6.91           6962         0              Normal
  05/06/2025 06 AM PDT            6.91           6962         0              Normal
  05/06/2025 07 AM PDT            6.92           6980         +              Normal
  05/06/2025 08 AM PDT            6.92           6980         0              Normal
  05/06/2025 09 AM PDT            6.92           6980         0              Normal
  05/06/2025 10 AM PDT            6.92           6980         0              Normal
  05/06/2025 11 AM PDT            6.92           6980         0              Normal
  05/06/2025 12 PM PDT            6.92           6980         0              Normal
  05/06/2025 01 PM PDT            6.92           6980         0              Normal
  05/06/2025 02 PM PDT            6.92           6980         0              Normal
  05/06/2025 03 PM PDT            6.91           6962         -              Normal
  05/06/2025 04 PM PDT            6.91           6962         0              Normal
  05/06/2025 05 PM PDT            6.91           6962         0              Normal
  05/06/2025 06 PM PDT            6.91           6962         0              Normal
  05/06/2025 07 PM PDT            6.91           6962         0              Normal
  05/06/2025 08 PM PDT            6.92           6980         +              Normal
  05/06/2025 09 PM PDT            6.92           6980         0              Normal
  05/06/2025 10 PM PDT            6.93           6998         +              Normal
  05/06/2025 11 PM PDT            6.94           7015         +              Normal
  05/07/2025 12 AM PDT            6.95           7033         +              Normal
  05/07/2025 01 AM PDT            6.96           7051         +              Normal
  05/07/2025 02 AM PDT            6.98           7087         +              Normal
  05/07/2025 03 AM PDT            6.99           7105         +              Normal
  05/07/2025 04 AM PDT            7.00           7123         +              Normal
  05/07/2025 05 AM PDT            7.02           7159         +              Normal
  05/07/2025 06 AM PDT            7.04           7195         +              Normal
  05/07/2025 07 AM PDT            7.04           7195         0              Normal
  05/07/2025 08 AM PDT            7.05           7213         +              Normal
  05/07/2025 09 AM PDT            7.06           7232         +              Normal
  05/07/2025 10 AM PDT            7.07           7250         +              Normal
  05/07/2025 11 AM PDT            7.07           7250         0              Normal
  05/07/2025 12 PM PDT            7.07           7250         0              Normal
  05/07/2025 01 PM PDT            7.08           7268         +              Normal
  05/07/2025 02 PM PDT            7.08           7268         0              Normal
  05/07/2025 03 PM PDT            7.09           7286         +              Normal
  05/07/2025 04 PM PDT            7.09           7286         0              Normal
  05/07/2025 05 PM PDT            7.10           7305         +              Normal
  05/07/2025 06 PM PDT            7.11           7323         +              Normal
  05/07/2025 07 PM PDT            7.12           7341         +              Normal
  05/07/2025 08 PM PDT            7.12           7341         0              Normal
  05/07/2025 09 PM PDT            7.13           7359         +              Normal
  05/07/2025 10 PM PDT            7.14           7378         +              Normal
  05/07/2025 11 PM PDT            7.16           7415         +              Normal
  05/08/2025 12 AM PDT            7.17           7433         +              Normal
  05/08/2025 01 AM PDT            7.18           7452         +              Normal
  05/08/2025 02 AM PDT            7.19           7470         +              Normal
  05/08/2025 03 AM PDT            7.20           7489         +              Normal
  05/08/2025 04 AM PDT            7.21           7507         +              Normal
  05/08/2025 05 AM PDT            7.22           7526         +              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.