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

 |  End of River Group

SUSAN RIVER - SUSANVILLE (SUSC1)
Latitude: 40.41º NLongitude: 120.66º WElevation: 4190 Feet
Location: Lassen County in CaliforniaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: Dec 15 2025 at 1:49 PM PSTNext Issuance: Dec 16 2025 at 9:00 AM PST
Action/Monitor: 10.5 FeetMinor Flood: 12.0 FeetModerate Flood: 13.0 FeetMajor Flood: 14.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Susan River - Susanville (SUSC1)
#
# File Generation Time:  12/15/2025 at 01:49 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/14/2025 at 09:00 PM PST
# Maximum Observed Stage:                       3.87 Feet
# Maximum Observed Flow:                        23 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/19/2025 at 11:00 PM PST
# Maximum Forecast Stage:                       5.12 Feet
# Maximum Forecast Flow:                        179 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/10/2025 01 PM PST            3.84             21                        Normal
  12/10/2025 02 PM PST            3.84             21         0              Normal
  12/10/2025 03 PM PST            3.84             21         0              Normal
  12/10/2025 04 PM PST            3.84             21         0              Normal
  12/10/2025 05 PM PST            3.84             21         0              Normal
  12/10/2025 06 PM PST            3.85             21         +              Normal
  12/10/2025 07 PM PST            3.85             21         0              Normal
  12/10/2025 08 PM PST            3.85             21         0              Normal
  12/10/2025 09 PM PST            3.85             21         0              Normal
  12/10/2025 10 PM PST            3.85             21         0              Normal
  12/10/2025 11 PM PST            3.85             21         0              Normal
  12/11/2025 12 AM PST            3.85             21         0              Normal
  12/11/2025 01 AM PST            3.84             21         -              Normal
  12/11/2025 02 AM PST            3.84             21         0              Normal
  12/11/2025 03 AM PST            3.85             21         +              Normal
  12/11/2025 04 AM PST            3.84             21         -              Normal
  12/11/2025 05 AM PST            3.84             21         0              Normal
  12/11/2025 06 AM PST            3.84             21         0              Normal
  12/11/2025 07 AM PST            3.84             21         0              Normal
  12/11/2025 08 AM PST            3.84             21         0              Normal
  12/11/2025 09 AM PST            3.83             20         -              Normal
  12/11/2025 10 AM PST            3.83             20         0              Normal
  12/11/2025 11 AM PST            3.84             21         +              Normal
  12/11/2025 12 PM PST            3.84             21         0              Normal
  12/11/2025 01 PM PST            3.84             21         0              Normal
  12/11/2025 02 PM PST            3.84             21         0              Normal
  12/11/2025 03 PM PST            3.84             21         0              Normal
  12/11/2025 04 PM PST            3.84             21         0              Normal
  12/11/2025 05 PM PST            3.84             21         0              Normal
  12/11/2025 06 PM PST            3.84             21         0              Normal
  12/11/2025 07 PM PST            3.84             21         0              Normal
  12/11/2025 08 PM PST            3.84             21         0              Normal
  12/11/2025 09 PM PST            3.84             21         0              Normal
  12/11/2025 10 PM PST            3.84             21         0              Normal
  12/11/2025 11 PM PST            3.84             21         0              Normal
  12/12/2025 12 AM PST            3.84             21         0              Normal
  12/12/2025 01 AM PST            3.84             21         0              Normal
  12/12/2025 02 AM PST            3.84             21         0              Normal
  12/12/2025 03 AM PST            3.84             21         0              Normal
  12/12/2025 04 AM PST            3.84             21         0              Normal
  12/12/2025 05 AM PST            3.84             21         0              Normal
  12/12/2025 06 AM PST            3.84             21         0              Normal
  12/12/2025 07 AM PST            3.84             21         0              Normal
  12/12/2025 08 AM PST            3.83             20         -              Normal
  12/12/2025 09 AM PST            3.84             21         +              Normal
  12/12/2025 10 AM PST            3.84             21         0              Normal
  12/12/2025 11 AM PST            3.84             21         0              Normal
  12/12/2025 12 PM PST            3.84             21         0              Normal
  12/12/2025 01 PM PST            3.84             21         0              Normal
  12/12/2025 02 PM PST            3.83             20         -              Normal
  12/12/2025 03 PM PST            3.83             20         0              Normal
  12/12/2025 04 PM PST            3.82             19         -              Normal
  12/12/2025 05 PM PST            3.82             19         0              Normal
  12/12/2025 06 PM PST            3.83             20         +              Normal
  12/12/2025 07 PM PST            3.83             20         0              Normal
  12/12/2025 08 PM PST            3.84             21         +              Normal
  12/12/2025 09 PM PST            3.85             21         +              Normal
  12/12/2025 10 PM PST            3.85             21         0              Normal
  12/12/2025 11 PM PST            3.84             21         -              Normal
  12/13/2025 12 AM PST            3.84             21         0              Normal
  12/13/2025 01 AM PST            3.84             21         0              Normal
  12/13/2025 02 AM PST            3.84             21         0              Normal
  12/13/2025 03 AM PST            3.84             21         0              Normal
  12/13/2025 04 AM PST            3.84             21         0              Normal
  12/13/2025 05 AM PST            3.84             21         0              Normal
  12/13/2025 06 AM PST            3.84             21         0              Normal
  12/13/2025 07 AM PST            3.84             21         0              Normal
  12/13/2025 08 AM PST            3.84             21         0              Normal
  12/13/2025 09 AM PST            3.83             20         -              Normal
  12/13/2025 10 AM PST            3.83             20         0              Normal
  12/13/2025 11 AM PST            3.83             20         0              Normal
  12/13/2025 12 PM PST            3.83             20         0              Normal
  12/13/2025 01 PM PST            3.82             19         -              Normal
  12/13/2025 02 PM PST            3.81             19         -              Normal
  12/13/2025 03 PM PST            3.80             18         -              Normal
  12/13/2025 04 PM PST            3.81             19         +              Normal
  12/13/2025 05 PM PST            3.81             19         0              Normal
  12/13/2025 06 PM PST            3.81             19         0              Normal
  12/13/2025 07 PM PST            3.83             20         +              Normal
  12/13/2025 08 PM PST            3.85             21         +              Normal
  12/13/2025 09 PM PST            3.87             23         +              Normal
  12/13/2025 10 PM PST            3.86             22         -              Normal
  12/13/2025 11 PM PST            3.85             21         -              Normal
  12/14/2025 12 AM PST            3.84             21         -              Normal
  12/14/2025 01 AM PST            3.84             21         0              Normal
  12/14/2025 02 AM PST            3.84             21         0              Normal
  12/14/2025 03 AM PST            3.85             21         +              Normal
  12/14/2025 04 AM PST            3.84             21         -              Normal
  12/14/2025 05 AM PST            3.84             21         0              Normal
  12/14/2025 06 AM PST            3.84             21         0              Normal
  12/14/2025 07 AM PST            3.84             21         0              Normal
  12/14/2025 08 AM PST            3.84             21         0              Normal
  12/14/2025 09 AM PST            3.83             20         -              Normal
  12/14/2025 10 AM PST            3.83             20         0              Normal
  12/14/2025 11 AM PST            3.83             20         0              Normal
  12/14/2025 12 PM PST            3.82             19         -              Normal
  12/14/2025 01 PM PST            3.80             18         -              Normal
  12/14/2025 02 PM PST            3.80             18         0              Normal
  12/14/2025 03 PM PST            3.80             18         0              Normal
  12/14/2025 04 PM PST            3.80             18         0              Normal
  12/14/2025 05 PM PST            3.81             19         +              Normal
  12/14/2025 06 PM PST            3.81             19         0              Normal
  12/14/2025 07 PM PST            3.83             20         +              Normal
  12/14/2025 08 PM PST            3.86             22         +              Normal
  12/14/2025 09 PM PST            3.87             23         +              Normal
  12/14/2025 10 PM PST            3.86             22         -              Normal
  12/14/2025 11 PM PST            3.84             21         -              Normal
  12/15/2025 12 AM PST            3.84             21         0              Normal
  12/15/2025 01 AM PST            3.84             21         0              Normal
  12/15/2025 02 AM PST            3.84             21         0              Normal
  12/15/2025 03 AM PST            3.84             21         0              Normal
  12/15/2025 04 AM PST            3.84             21         0              Normal
  12/15/2025 05 AM PST            3.84             21         0              Normal
  12/15/2025 06 AM PST            3.83             20         -              Normal
  12/15/2025 07 AM PST            3.83             20         0              Normal
  12/15/2025 08 AM PST            3.83             20         0              Normal
  12/15/2025 09 AM PST            3.83             20         0              Normal
  12/15/2025 10 AM PST            3.83             20         0              Normal
  12/15/2025 11 AM PST            3.83             20         0              Normal
  12/15/2025 12 PM PST            3.83             20         0              Normal
  12/15/2025 01 PM PST            3.83             20         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/15/2025 02 PM PST            3.83             20                        Normal
  12/15/2025 03 PM PST            3.83             20         0              Normal
  12/15/2025 04 PM PST            3.83             20         0              Normal
  12/15/2025 05 PM PST            3.83             20         0              Normal
  12/15/2025 06 PM PST            3.83             20         0              Normal
  12/15/2025 07 PM PST            3.83             20         0              Normal
  12/15/2025 08 PM PST            3.83             20         0              Normal
  12/15/2025 09 PM PST            3.83             20         0              Normal
  12/15/2025 10 PM PST            3.83             20         0              Normal
  12/15/2025 11 PM PST            3.83             20         0              Normal
  12/16/2025 12 AM PST            3.83             20         0              Normal
  12/16/2025 01 AM PST            3.83             20         0              Normal
  12/16/2025 02 AM PST            3.83             20         0              Normal
  12/16/2025 03 AM PST            3.83             20         0              Normal
  12/16/2025 04 AM PST            3.83             20         0              Normal
  12/16/2025 05 AM PST            3.83             20         0              Normal
  12/16/2025 06 AM PST            3.83             20         0              Normal
  12/16/2025 07 AM PST            3.83             20         0              Normal
  12/16/2025 08 AM PST            3.83             20         0              Normal
  12/16/2025 09 AM PST            3.83             20         0              Normal
  12/16/2025 10 AM PST            3.83             20         0              Normal
  12/16/2025 11 AM PST            3.83             20         0              Normal
  12/16/2025 12 PM PST            3.84             21         +              Normal
  12/16/2025 01 PM PST            3.85             21         +              Normal
  12/16/2025 02 PM PST            3.87             23         +              Normal
  12/16/2025 03 PM PST            3.88             23         +              Normal
  12/16/2025 04 PM PST            3.89             24         +              Normal
  12/16/2025 05 PM PST            3.89             24         0              Normal
  12/16/2025 06 PM PST            3.90             25         +              Normal
  12/16/2025 07 PM PST            3.91             26         +              Normal
  12/16/2025 08 PM PST            3.92             27         +              Normal
  12/16/2025 09 PM PST            3.93             27         +              Normal
  12/16/2025 10 PM PST            3.94             28         +              Normal
  12/16/2025 11 PM PST            3.94             28         0              Normal
  12/17/2025 12 AM PST            3.95             29         +              Normal
  12/17/2025 01 AM PST            3.95             29         0              Normal
  12/17/2025 02 AM PST            3.96             30         +              Normal
  12/17/2025 03 AM PST            3.97             31         +              Normal
  12/17/2025 04 AM PST            3.97             31         0              Normal
  12/17/2025 05 AM PST            3.97             31         0              Normal
  12/17/2025 06 AM PST            3.97             31         0              Normal
  12/17/2025 07 AM PST            3.96             30         -              Normal
  12/17/2025 08 AM PST            3.95             29         -              Normal
  12/17/2025 09 AM PST            3.94             28         -              Normal
  12/17/2025 10 AM PST            3.94             28         0              Normal
  12/17/2025 11 AM PST            3.94             28         0              Normal
  12/17/2025 12 PM PST            3.95             29         +              Normal
  12/17/2025 01 PM PST            3.97             31         +              Normal
  12/17/2025 02 PM PST            3.99             33         +              Normal
  12/17/2025 03 PM PST            4.01             35         +              Normal
  12/17/2025 04 PM PST            4.02             36         +              Normal
  12/17/2025 05 PM PST            4.03             37         +              Normal
  12/17/2025 06 PM PST            4.02             36         -              Normal
  12/17/2025 07 PM PST            4.01             35         -              Normal
  12/17/2025 08 PM PST            3.98             32         -              Normal
  12/17/2025 09 PM PST            3.97             31         -              Normal
  12/17/2025 10 PM PST            3.96             30         -              Normal
  12/17/2025 11 PM PST            3.95             29         -              Normal
  12/18/2025 12 AM PST            3.94             28         -              Normal
  12/18/2025 01 AM PST            3.92             27         -              Normal
  12/18/2025 02 AM PST            3.91             26         -              Normal
  12/18/2025 03 AM PST            3.90             25         -              Normal
  12/18/2025 04 AM PST            3.89             24         -              Normal
  12/18/2025 05 AM PST            3.89             24         0              Normal
  12/18/2025 06 AM PST            3.88             23         -              Normal
  12/18/2025 07 AM PST            3.88             23         0              Normal
  12/18/2025 08 AM PST            3.88             23         0              Normal
  12/18/2025 09 AM PST            3.88             23         0              Normal
  12/18/2025 10 AM PST            3.88             23         0              Normal
  12/18/2025 11 AM PST            3.88             23         0              Normal
  12/18/2025 12 PM PST            3.89             24         +              Normal
  12/18/2025 01 PM PST            3.89             24         0              Normal
  12/18/2025 02 PM PST            3.90             25         +              Normal
  12/18/2025 03 PM PST            3.91             26         +              Normal
  12/18/2025 04 PM PST            3.91             26         0              Normal
  12/18/2025 05 PM PST            3.91             26         0              Normal
  12/18/2025 06 PM PST            3.91             26         0              Normal
  12/18/2025 07 PM PST            3.91             26         0              Normal
  12/18/2025 08 PM PST            3.91             26         0              Normal
  12/18/2025 09 PM PST            3.91             26         0              Normal
  12/18/2025 10 PM PST            3.91             26         0              Normal
  12/18/2025 11 PM PST            3.91             26         0              Normal
  12/19/2025 12 AM PST            3.91             26         0              Normal
  12/19/2025 01 AM PST            3.91             26         0              Normal
  12/19/2025 02 AM PST            3.91             26         0              Normal
  12/19/2025 03 AM PST            3.91             26         0              Normal
  12/19/2025 04 AM PST            3.91             26         0              Normal
  12/19/2025 05 AM PST            3.91             26         0              Normal
  12/19/2025 06 AM PST            3.92             27         +              Normal
  12/19/2025 07 AM PST            3.93             27         +              Normal
  12/19/2025 08 AM PST            3.95             29         +              Normal
  12/19/2025 09 AM PST            3.96             30         +              Normal
  12/19/2025 10 AM PST            3.96             30         0              Normal
  12/19/2025 11 AM PST            4.01             35         +              Normal
  12/19/2025 12 PM PST            4.14             47         +              Normal
  12/19/2025 01 PM PST            4.32             66         +              Normal
  12/19/2025 02 PM PST            4.53             93         +              Normal
  12/19/2025 03 PM PST            4.65            109         +              Normal
  12/19/2025 04 PM PST            4.73            121         +              Normal
  12/19/2025 05 PM PST            4.80            132         +              Normal
  12/19/2025 06 PM PST            4.87            143         +              Normal
  12/19/2025 07 PM PST            4.94            153         +              Normal
  12/19/2025 08 PM PST            5.02            165         +              Normal
  12/19/2025 09 PM PST            5.07            172         +              Normal
  12/19/2025 10 PM PST            5.11            177         +              Normal
  12/19/2025 11 PM PST            5.12            179         +              Normal
  12/20/2025 12 AM PST            5.11            177         -              Normal
  12/20/2025 01 AM PST            5.07            172         -              Normal
  12/20/2025 02 AM PST            5.01            163         -              Normal
  12/20/2025 03 AM PST            4.97            158         -              Normal
  12/20/2025 04 AM PST            4.94            153         -              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.