LAGUNA DE SANTA ROSA - SEBASTOPOL (LSEC1)
Latitude: 38.43º NLongitude: 122.83º WElevation: 50 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Dec 25 2025 at 1:11 PM PSTNext Issuance: Dec 26 2025 at 9:00 AM PST
Action/Monitor: 67.0 FeetMinor Flood: 69.0 FeetModerate Flood: N/A Major Flood: N/A

SPECIAL NOTE:

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Laguna De Santa Rosa - Sebastopol (LSEC1)
#
# File Generation Time:  12/25/2025 at 01:13 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/25/2025 at 12:00 PM PST
# Maximum Observed Stage:                       61.59 Feet
# Maximum Observed Flow:                        661 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/25/2025 at 05:00 PM PST
# Maximum Forecast Stage:                       62.10 Feet
# Maximum Forecast Flow:                        808 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/20/2025 01 PM PST           56.45             12                        Normal
  12/20/2025 02 PM PST           56.46             12         +              Normal
  12/20/2025 03 PM PST           56.47             12         +              Normal
  12/20/2025 04 PM PST           56.49             12         +              Normal
  12/20/2025 05 PM PST           56.50             12         +              Normal
  12/20/2025 06 PM PST           56.52             13         +              Normal
  12/20/2025 07 PM PST           56.54             13         +              Normal
  12/20/2025 08 PM PST           56.56             14         +              Normal
  12/20/2025 09 PM PST           56.58             14         +              Normal
  12/20/2025 10 PM PST           56.60             15         +              Normal
  12/20/2025 11 PM PST           56.64             15         +              Normal
  12/21/2025 12 AM PST           56.66             16         +              Normal
  12/21/2025 01 AM PST           56.69             16         +              Normal
  12/21/2025 02 AM PST           56.71             17         +              Normal
  12/21/2025 03 AM PST           56.74             17         +              Normal
  12/21/2025 04 AM PST           56.77             18         +              Normal
  12/21/2025 05 AM PST           56.80             19         +              Normal
  12/21/2025 06 AM PST           56.83             19         +              Normal
  12/21/2025 07 AM PST           56.86             20         +              Normal
  12/21/2025 08 AM PST           56.90             21         +              Normal
  12/21/2025 09 AM PST           56.93             22         +              Normal
  12/21/2025 10 AM PST           56.97             23         +              Normal
  12/21/2025 11 AM PST           57.00             24         +              Normal
  12/21/2025 12 PM PST           57.04             25         +              Normal
  12/21/2025 01 PM PST           57.08             26         +              Normal
  12/21/2025 02 PM PST           57.12             27         +              Normal
  12/21/2025 03 PM PST           57.17             29         +              Normal
  12/21/2025 04 PM PST           57.24             31         +              Normal
  12/21/2025 05 PM PST           57.31             33         +              Normal
  12/21/2025 06 PM PST           57.41             37         +              Normal
  12/21/2025 07 PM PST           57.51             41         +              Normal
  12/21/2025 08 PM PST           57.61             45         +              Normal
  12/21/2025 09 PM PST           57.73             51         +              Normal
  12/21/2025 10 PM PST           57.84             56         +              Normal
  12/21/2025 11 PM PST           57.95             62         +              Normal
  12/22/2025 12 AM PST           58.07             69         +              Normal
  12/22/2025 01 AM PST           58.22             77         +              Normal
  12/22/2025 02 AM PST           58.39             86         +              Normal
  12/22/2025 03 AM PST           58.57            100         +              Normal
  12/22/2025 04 AM PST           58.75            118         +              Normal
  12/22/2025 05 AM PST           58.94            147         +              Normal
  12/22/2025 06 AM PST           59.15            178         +              Normal
  12/22/2025 07 AM PST           59.37            207         +              Normal
  12/22/2025 08 AM PST           59.62            244         +              Normal
  12/22/2025 09 AM PST           59.88            286         +              Normal
  12/22/2025 10 AM PST           60.15            336         +              Normal
  12/22/2025 11 AM PST           60.41            388         +              Normal
  12/22/2025 12 PM PST           60.63            433         +              Normal
  12/22/2025 01 PM PST           60.81            471         +              Normal
  12/22/2025 02 PM PST           60.94            500         +              Normal
  12/22/2025 03 PM PST           61.04            523         +              Normal
  12/22/2025 04 PM PST           61.12            542         +              Normal
  12/22/2025 05 PM PST           61.18            557         +              Normal
  12/22/2025 06 PM PST           61.23            569         +              Normal
  12/22/2025 07 PM PST           61.27            579         +              Normal
  12/22/2025 08 PM PST           61.30            586         +              Normal
  12/22/2025 09 PM PST           61.33            594         +              Normal
  12/22/2025 10 PM PST           61.35            599         +              Normal
  12/22/2025 11 PM PST           61.36            601         +              Normal
  12/23/2025 12 AM PST           61.37            604         +              Normal
  12/23/2025 01 AM PST           61.38            606         +              Normal
  12/23/2025 02 AM PST           61.38            606         0              Normal
  12/23/2025 03 AM PST           61.38            606         0              Normal
  12/23/2025 04 AM PST           61.37            604         -              Normal
  12/23/2025 05 AM PST           61.36            601         -              Normal
  12/23/2025 06 AM PST           61.34            596         -              Normal
  12/23/2025 07 AM PST           61.32            591         -              Normal
  12/23/2025 08 AM PST           61.30            586         -              Normal
  12/23/2025 09 AM PST           61.27            579         -              Normal
  12/23/2025 10 AM PST           61.24            571         -              Normal
  12/23/2025 11 AM PST           61.21            564         -              Normal
  12/23/2025 12 PM PST           61.19            559         -              Normal
  12/23/2025 01 PM PST           61.16            552         -              Normal
  12/23/2025 02 PM PST           61.12            542         -              Normal
  12/23/2025 03 PM PST           61.09            535         -              Normal
  12/23/2025 04 PM PST           61.06            528         -              Normal
  12/23/2025 05 PM PST           61.02            518         -              Normal
  12/23/2025 06 PM PST           60.99            511         -              Normal
  12/23/2025 07 PM PST           60.96            504         -              Normal
  12/23/2025 08 PM PST           60.93            498         -              Normal
  12/23/2025 09 PM PST           60.90            491         -              Normal
  12/23/2025 10 PM PST           60.88            486         -              Normal
  12/23/2025 11 PM PST           60.85            480         -              Normal
  12/24/2025 12 AM PST           60.83            476         -              Normal
  12/24/2025 01 AM PST           60.82            473         -              Normal
  12/24/2025 02 AM PST           60.80            469         -              Normal
  12/24/2025 03 AM PST           60.78            465         -              Normal
  12/24/2025 04 AM PST           60.77            462         -              Normal
  12/24/2025 05 AM PST           60.77            462         0              Normal
  12/24/2025 06 AM PST           60.77            462         0              Normal
  12/24/2025 07 AM PST           60.77            462         0              Normal
  12/24/2025 08 AM PST           60.76            460         -              Normal
  12/24/2025 09 AM PST           60.75            458         -              Normal
  12/24/2025 10 AM PST           60.74            456         -              Normal
  12/24/2025 11 AM PST           60.73            454         -              Normal
  12/24/2025 12 PM PST           60.72            451         -              Normal
  12/24/2025 01 PM PST           60.71            449         -              Normal
  12/24/2025 02 PM PST           60.70            447         -              Normal
  12/24/2025 03 PM PST           60.68            443         -              Normal
  12/24/2025 04 PM PST           60.67            441         -              Normal
  12/24/2025 05 PM PST           60.66            439         -              Normal
  12/24/2025 06 PM PST           60.66            439         0              Normal
  12/24/2025 07 PM PST           60.67            441         +              Normal
  12/24/2025 08 PM PST           60.68            443         +              Normal
  12/24/2025 09 PM PST           60.69            445         +              Normal
  12/24/2025 10 PM PST           60.69            445         0              Normal
  12/24/2025 11 PM PST           60.69            445         0              Normal
  12/25/2025 12 AM PST           60.71            449         +              Normal
  12/25/2025 01 AM PST           60.72            451         +              Normal
  12/25/2025 02 AM PST           60.74            456         +              Normal
  12/25/2025 03 AM PST           60.79            467         +              Normal
  12/25/2025 04 AM PST           60.82            473         +              Normal
  12/25/2025 05 AM PST           60.87            484         +              Normal
  12/25/2025 06 AM PST           60.92            495         +              Normal
  12/25/2025 07 AM PST           60.98            509         +              Normal
  12/25/2025 08 AM PST           61.06            528         +              Normal
  12/25/2025 09 AM PST           61.13            545         +              Normal
  12/25/2025 10 AM PST           61.21            564         +              Normal
  12/25/2025 11 AM PST           61.26            576         +              Normal
  12/25/2025 12 PM PST           61.59            661         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/25/2025 01 PM PST           61.82            725                        Normal
  12/25/2025 02 PM PST           61.97            769         +              Normal
  12/25/2025 03 PM PST           62.05            793         +              Normal
  12/25/2025 04 PM PST           62.08            802         +              Normal
  12/25/2025 05 PM PST           62.10            808         +              Normal
  12/25/2025 06 PM PST           62.10            808         0              Normal
  12/25/2025 07 PM PST           62.08            802         -              Normal
  12/25/2025 08 PM PST           62.04            790         -              Normal
  12/25/2025 09 PM PST           61.99            775         -              Normal
  12/25/2025 10 PM PST           61.94            760         -              Normal
  12/25/2025 11 PM PST           61.89            745         -              Normal
  12/26/2025 12 AM PST           61.85            734         -              Normal
  12/26/2025 01 AM PST           61.81            722         -              Normal
  12/26/2025 02 AM PST           61.77            711         -              Normal
  12/26/2025 03 AM PST           61.75            706         -              Normal
  12/26/2025 04 AM PST           61.73            700         -              Normal
  12/26/2025 05 AM PST           61.71            695         -              Normal
  12/26/2025 06 AM PST           61.69            689         -              Normal
  12/26/2025 07 AM PST           61.66            681         -              Normal
  12/26/2025 08 AM PST           61.61            667         -              Normal
  12/26/2025 09 AM PST           61.54            648         -              Normal
  12/26/2025 10 AM PST           61.47            629         -              Normal
  12/26/2025 11 AM PST           61.39            609         -              Normal
  12/26/2025 12 PM PST           61.31            589         -              Normal
  12/26/2025 01 PM PST           61.23            569         -              Normal
  12/26/2025 02 PM PST           61.15            550         -              Normal
  12/26/2025 03 PM PST           61.07            530         -              Normal
  12/26/2025 04 PM PST           60.98            509         -              Normal
  12/26/2025 05 PM PST           60.89            489         -              Normal
  12/26/2025 06 PM PST           60.80            469         -              Normal
  12/26/2025 07 PM PST           60.71            449         -              Normal
  12/26/2025 08 PM PST           60.63            433         -              Normal
  12/26/2025 09 PM PST           60.54            414         -              Normal
  12/26/2025 10 PM PST           60.47            400         -              Normal
  12/26/2025 11 PM PST           60.40            386         -              Normal
  12/27/2025 12 AM PST           60.39            384         -              Normal
  12/27/2025 01 AM PST           60.39            384         0              Normal
  12/27/2025 02 AM PST           60.39            384         0              Normal
  12/27/2025 03 AM PST           60.38            382         -              Normal
  12/27/2025 04 AM PST           60.38            382         0              Normal
  12/27/2025 05 AM PST           60.37            381         -              Normal
  12/27/2025 06 AM PST           60.35            377         -              Normal
  12/27/2025 07 AM PST           60.33            373         -              Normal
  12/27/2025 08 AM PST           60.31            369         -              Normal
  12/27/2025 09 AM PST           60.29            365         -              Normal
  12/27/2025 10 AM PST           60.26            360         -              Normal
  12/27/2025 11 AM PST           60.24            356         -              Normal
  12/27/2025 12 PM PST           60.21            349         -              Normal
  12/27/2025 01 PM PST           60.19            345         -              Normal
  12/27/2025 02 PM PST           60.16            338         -              Normal
  12/27/2025 03 PM PST           60.12            330         -              Normal
  12/27/2025 04 PM PST           60.09            324         -              Normal
  12/27/2025 05 PM PST           60.05            316         -              Normal
  12/27/2025 06 PM PST           60.00            308         -              Normal
  12/27/2025 07 PM PST           59.96            301         -              Normal
  12/27/2025 08 PM PST           59.92            293         -              Normal
  12/27/2025 09 PM PST           59.88            286         -              Normal
  12/27/2025 10 PM PST           59.83            277         -              Normal
  12/27/2025 11 PM PST           59.79            271         -              Normal
  12/28/2025 12 AM PST           59.74            263         -              Normal
  12/28/2025 01 AM PST           59.70            257         -              Normal
  12/28/2025 02 AM PST           59.66            250         -              Normal
  12/28/2025 03 AM PST           59.62            244         -              Normal
  12/28/2025 04 AM PST           59.59            239         -              Normal
  12/28/2025 05 AM PST           59.55            233         -              Normal
  12/28/2025 06 AM PST           59.52            229         -              Normal
  12/28/2025 07 AM PST           59.49            224         -              Normal
  12/28/2025 08 AM PST           59.46            220         -              Normal
  12/28/2025 09 AM PST           59.44            217         -              Normal
  12/28/2025 10 AM PST           59.42            214         -              Normal
  12/28/2025 11 AM PST           59.40            211         -              Normal
  12/28/2025 12 PM PST           59.39            210         -              Normal
  12/28/2025 01 PM PST           59.38            209         -              Normal
  12/28/2025 02 PM PST           59.37            207         -              Normal
  12/28/2025 03 PM PST           59.36            206         -              Normal
  12/28/2025 04 PM PST           59.35            205         -              Normal
  12/28/2025 05 PM PST           59.35            205         0              Normal
  12/28/2025 06 PM PST           59.35            205         0              Normal
  12/28/2025 07 PM PST           59.35            205         0              Normal
  12/28/2025 08 PM PST           59.35            205         0              Normal
  12/28/2025 09 PM PST           59.35            205         0              Normal
  12/28/2025 10 PM PST           59.35            205         0              Normal
  12/28/2025 11 PM PST           59.36            206         +              Normal
  12/29/2025 12 AM PST           59.33            202         -              Normal
  12/29/2025 01 AM PST           59.31            199         -              Normal
  12/29/2025 02 AM PST           59.28            195         -              Normal
  12/29/2025 03 AM PST           59.26            193         -              Normal
  12/29/2025 04 AM PST           59.24            190         -              Normal
  12/29/2025 05 AM PST           59.22            187         -              Normal
  12/29/2025 06 AM PST           59.19            183         -              Normal
  12/29/2025 07 AM PST           59.17            181         -              Normal
  12/29/2025 08 AM PST           59.15            178         -              Normal
  12/29/2025 09 AM PST           59.13            176         -              Normal
  12/29/2025 10 AM PST           59.12            174         -              Normal
  12/29/2025 11 AM PST           59.10            170         -              Normal
  12/29/2025 12 PM PST           59.09            169         -              Normal
  12/29/2025 01 PM PST           59.07            165         -              Normal
  12/29/2025 02 PM PST           59.06            163         -              Normal
  12/29/2025 03 PM PST           59.05            162         -              Normal
  12/29/2025 04 PM PST           59.03            159         -              Normal
  12/29/2025 05 PM PST           59.01            156         -              Normal
  12/29/2025 06 PM PST           59.00            155         -              Normal
  12/29/2025 07 PM PST           58.98            152         -              Normal
  12/29/2025 08 PM PST           58.96            150         -              Normal
  12/29/2025 09 PM PST           58.95            148         -              Normal
  12/29/2025 10 PM PST           58.94            147         -              Normal
  12/29/2025 11 PM PST           58.92            144         -              Normal
  12/30/2025 12 AM PST           58.91            142         -              Normal
  12/30/2025 01 AM PST           58.90            141         -              Normal
  12/30/2025 02 AM PST           58.89            139         -              Normal
  12/30/2025 03 AM PST           58.88            138         -              Normal
  12/30/2025 04 AM PST           58.87            136         -              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.