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

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LAGUNA DE SANTA ROSA - SEBASTOPOL (LSEC1)
Latitude: 38.43º NLongitude: 122.83º WElevation: 50 FeetForecast Type: Unofficial Location
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Mar 06 2026 at 12:52 PM PSTNext Issuance: Mar 07 2026 at 9:00 AM PST
Action/Monitor: 67.0 FeetMinor Flood: 69.0 FeetModerate Flood: N/A Major Flood: N/A
Please Note:

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Laguna De Santa Rosa - Sebastopol (LSEC1)
#
# File Generation Time:  03/06/2026 at 12:54 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/01/2026 at 12:00 PM PST
# Maximum Observed Stage:                       58.86 Feet
# Maximum Observed Flow:                        135 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/06/2026 at 01:00 PM PST
# Maximum Forecast Stage:                       57.75 Feet
# Maximum Forecast Flow:                        52 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/01/2026 12 PM PST           58.86            135                        Normal
  03/01/2026 01 PM PST           58.84            131         -              Normal
  03/01/2026 02 PM PST           58.83            129         -              Normal
  03/01/2026 03 PM PST           58.82            128         -              Normal
  03/01/2026 04 PM PST           58.80            125         -              Normal
  03/01/2026 05 PM PST           58.78            122         -              Normal
  03/01/2026 06 PM PST           58.77            121         -              Normal
  03/01/2026 07 PM PST           58.75            118         -              Normal
  03/01/2026 08 PM PST           58.74            117         -              Normal
  03/01/2026 09 PM PST           58.72            115         -              Normal
  03/01/2026 10 PM PST           58.71            114         -              Normal
  03/01/2026 11 PM PST           58.69            111         -              Normal
  03/02/2026 12 AM PST           58.68            110         -              Normal
  03/02/2026 01 AM PST           58.66            108         -              Normal
  03/02/2026 02 AM PST           58.65            106         -              Normal
  03/02/2026 03 AM PST           58.64            105         -              Normal
  03/02/2026 04 AM PST           58.63            104         -              Normal
  03/02/2026 05 AM PST           58.62            103         -              Normal
  03/02/2026 06 AM PST           58.60            102         -              Normal
  03/02/2026 07 AM PST           58.59            101         -              Normal
  03/02/2026 08 AM PST           58.58            100         -              Normal
  03/02/2026 09 AM PST           58.56             99         -              Normal
  03/02/2026 10 AM PST           58.55             98         -              Normal
  03/02/2026 11 AM PST           58.54             97         -              Normal
  03/02/2026 12 PM PST           58.53             97         -              Normal
  03/02/2026 01 PM PST           58.52             96         -              Normal
  03/02/2026 02 PM PST           58.51             95         -              Normal
  03/02/2026 03 PM PST           58.49             94         -              Normal
  03/02/2026 04 PM PST           58.48             93         -              Normal
  03/02/2026 05 PM PST           58.47             92         -              Normal
  03/02/2026 06 PM PST           58.46             91         -              Normal
  03/02/2026 07 PM PST           58.45             91         -              Normal
  03/02/2026 08 PM PST           58.44             90         -              Normal
  03/02/2026 09 PM PST           58.42             88         -              Normal
  03/02/2026 10 PM PST           58.41             88         -              Normal
  03/02/2026 11 PM PST           58.40             87         -              Normal
  03/03/2026 12 AM PST           58.39             86         -              Normal
  03/03/2026 01 AM PST           58.38             86         -              Normal
  03/03/2026 02 AM PST           58.37             85         -              Normal
  03/03/2026 03 AM PST           58.36             85         -              Normal
  03/03/2026 04 AM PST           58.35             84         -              Normal
  03/03/2026 05 AM PST           58.34             84         -              Normal
  03/03/2026 06 AM PST           58.33             83         -              Normal
  03/03/2026 07 AM PST           58.32             83         -              Normal
  03/03/2026 08 AM PST           58.31             82         -              Normal
  03/03/2026 09 AM PST           58.30             81         -              Normal
  03/03/2026 10 AM PST           58.29             81         -              Normal
  03/03/2026 11 AM PST           58.28             80         -              Normal
  03/03/2026 12 PM PST           58.27             80         -              Normal
  03/03/2026 01 PM PST           58.26             79         -              Normal
  03/03/2026 02 PM PST           58.26             79         0              Normal
  03/03/2026 03 PM PST           58.25             78         -              Normal
  03/03/2026 04 PM PST           58.24             78         -              Normal
  03/03/2026 05 PM PST           58.23             77         -              Normal
  03/03/2026 06 PM PST           58.22             77         -              Normal
  03/03/2026 07 PM PST           58.21             76         -              Normal
  03/03/2026 08 PM PST           58.20             76         -              Normal
  03/03/2026 09 PM PST           58.19             75         -              Normal
  03/03/2026 10 PM PST           58.18             75         -              Normal
  03/03/2026 11 PM PST           58.18             75         0              Normal
  03/04/2026 12 AM PST           58.17             74         -              Normal
  03/04/2026 01 AM PST           58.16             74         -              Normal
  03/04/2026 02 AM PST           58.15             73         -              Normal
  03/04/2026 03 AM PST           58.14             72         -              Normal
  03/04/2026 04 AM PST           58.14             72         0              Normal
  03/04/2026 05 AM PST           58.13             72         -              Normal
  03/04/2026 06 AM PST           58.12             71         -              Normal
  03/04/2026 07 AM PST           58.11             71         -              Normal
  03/04/2026 08 AM PST           58.10             70         -              Normal
  03/04/2026 09 AM PST           58.10             70         0              Normal
  03/04/2026 10 AM PST           58.09             70         -              Normal
  03/04/2026 11 AM PST           58.08             69         -              Normal
  03/04/2026 12 PM PST           58.07             69         -              Normal
  03/04/2026 01 PM PST           58.07             69         0              Normal
  03/04/2026 02 PM PST           58.06             68         -              Normal
  03/04/2026 03 PM PST           58.06             68         0              Normal
  03/04/2026 04 PM PST           58.05             68         -              Normal
  03/04/2026 05 PM PST           58.04             67         -              Normal
  03/04/2026 06 PM PST           58.03             67         -              Normal
  03/04/2026 07 PM PST           58.03             67         0              Normal
  03/04/2026 08 PM PST           58.01             65         -              Normal
  03/04/2026 09 PM PST           58.01             65         0              Normal
  03/04/2026 10 PM PST           58.00             65         -              Normal
  03/04/2026 11 PM PST           57.99             64         -              Normal
  03/05/2026 12 AM PST           57.98             64         -              Normal
  03/05/2026 01 AM PST           57.98             64         0              Normal
  03/05/2026 02 AM PST           57.97             63         -              Normal
  03/05/2026 03 AM PST           57.96             63         -              Normal
  03/05/2026 04 AM PST           57.95             62         -              Normal
  03/05/2026 05 AM PST           57.95             62         0              Normal
  03/05/2026 06 AM PST           57.94             62         -              Normal
  03/05/2026 07 AM PST           57.93             61         -              Normal
  03/05/2026 08 AM PST           57.93             61         0              Normal
  03/05/2026 09 AM PST           57.92             61         -              Normal
  03/05/2026 10 AM PST           57.91             60         -              Normal
  03/05/2026 11 AM PST           57.91             60         0              Normal
  03/05/2026 12 PM PST           57.90             60         -              Normal
  03/05/2026 01 PM PST           57.90             60         0              Normal
  03/05/2026 02 PM PST           57.89             59         -              Normal
  03/05/2026 03 PM PST           57.88             58         -              Normal
  03/05/2026 04 PM PST           57.88             58         0              Normal
  03/05/2026 05 PM PST           57.87             58         -              Normal
  03/05/2026 06 PM PST           57.87             58         0              Normal
  03/05/2026 07 PM PST           57.86             57         -              Normal
  03/05/2026 08 PM PST           57.85             57         -              Normal
  03/05/2026 09 PM PST           57.84             56         -              Normal
  03/05/2026 10 PM PST           57.84             56         0              Normal
  03/05/2026 11 PM PST           57.83             56         -              Normal
  03/06/2026 12 AM PST           57.82             55         -              Normal
  03/06/2026 01 AM PST           57.82             55         0              Normal
  03/06/2026 02 AM PST           57.81             55         -              Normal
  03/06/2026 03 AM PST           57.80             54         -              Normal
  03/06/2026 04 AM PST           57.80             54         0              Normal
  03/06/2026 05 AM PST           57.79             54         -              Normal
  03/06/2026 06 AM PST           57.78             53         -              Normal
  03/06/2026 07 AM PST           57.78             53         0              Normal
  03/06/2026 08 AM PST           57.78             53         0              Normal
  03/06/2026 09 AM PST           57.77             53         -              Normal
  03/06/2026 10 AM PST           57.77             53         0              Normal
  03/06/2026 11 AM PST           57.76             52         -              Normal
  03/06/2026 12 PM PST           57.76             52         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/06/2026 01 PM PST           57.75             52                        Normal
  03/06/2026 02 PM PST           57.75             52         0              Normal
  03/06/2026 03 PM PST           57.74             51         -              Normal
  03/06/2026 04 PM PST           57.74             51         0              Normal
  03/06/2026 05 PM PST           57.73             51         -              Normal
  03/06/2026 06 PM PST           57.73             51         0              Normal
  03/06/2026 07 PM PST           57.72             50         -              Normal
  03/06/2026 08 PM PST           57.72             50         0              Normal
  03/06/2026 09 PM PST           57.71             50         -              Normal
  03/06/2026 10 PM PST           57.71             50         0              Normal
  03/06/2026 11 PM PST           57.70             50         -              Normal
  03/07/2026 12 AM PST           57.70             50         0              Normal
  03/07/2026 01 AM PST           57.70             50         0              Normal
  03/07/2026 02 AM PST           57.69             49         -              Normal
  03/07/2026 03 AM PST           57.69             49         0              Normal
  03/07/2026 04 AM PST           57.68             49         -              Normal
  03/07/2026 05 AM PST           57.68             49         0              Normal
  03/07/2026 06 AM PST           57.67             48         -              Normal
  03/07/2026 07 AM PST           57.67             48         0              Normal
  03/07/2026 08 AM PST           57.67             48         0              Normal
  03/07/2026 09 AM PST           57.66             48         -              Normal
  03/07/2026 10 AM PST           57.66             48         0              Normal
  03/07/2026 11 AM PST           57.66             48         0              Normal
  03/07/2026 12 PM PST           57.65             47         -              Normal
  03/07/2026 01 PM PST           57.65             47         0              Normal
  03/07/2026 02 PM PST           57.64             47         -              Normal
  03/07/2026 03 PM PST           57.64             47         0              Normal
  03/07/2026 04 PM PST           57.64             47         0              Normal
  03/07/2026 05 PM PST           57.63             46         -              Normal
  03/07/2026 06 PM PST           57.63             46         0              Normal
  03/07/2026 07 PM PST           57.62             46         -              Normal
  03/07/2026 08 PM PST           57.62             46         0              Normal
  03/07/2026 09 PM PST           57.62             46         0              Normal
  03/07/2026 10 PM PST           57.61             45         -              Normal
  03/07/2026 11 PM PST           57.61             45         0              Normal
  03/08/2026 12 AM PST           57.61             45         0              Normal
  03/08/2026 01 AM PST           57.60             45         -              Normal
  03/08/2026 03 AM PDT           57.60             45         0              Normal
  03/08/2026 04 AM PDT           57.60             45         0              Normal
  03/08/2026 05 AM PDT           57.59             44         -              Normal
  03/08/2026 06 AM PDT           57.59             44         0              Normal
  03/08/2026 07 AM PDT           57.59             44         0              Normal
  03/08/2026 08 AM PDT           57.58             44         -              Normal
  03/08/2026 09 AM PDT           57.58             44         0              Normal
  03/08/2026 10 AM PDT           57.58             44         0              Normal
  03/08/2026 11 AM PDT           57.57             44         -              Normal
  03/08/2026 12 PM PDT           57.57             44         0              Normal
  03/08/2026 01 PM PDT           57.56             43         -              Normal
  03/08/2026 02 PM PDT           57.56             43         0              Normal
  03/08/2026 03 PM PDT           57.56             43         0              Normal
  03/08/2026 04 PM PDT           57.55             43         -              Normal
  03/08/2026 05 PM PDT           57.55             43         0              Normal
  03/08/2026 06 PM PDT           57.55             43         0              Normal
  03/08/2026 07 PM PDT           57.55             43         0              Normal
  03/08/2026 08 PM PDT           57.54             42         -              Normal
  03/08/2026 09 PM PDT           57.54             42         0              Normal
  03/08/2026 10 PM PDT           57.53             42         -              Normal
  03/08/2026 11 PM PDT           57.53             42         0              Normal
  03/09/2026 12 AM PDT           57.53             42         0              Normal
  03/09/2026 01 AM PDT           57.52             42         -              Normal
  03/09/2026 02 AM PDT           57.52             42         0              Normal
  03/09/2026 03 AM PDT           57.52             42         0              Normal
  03/09/2026 04 AM PDT           57.52             42         0              Normal
  03/09/2026 05 AM PDT           57.51             41         -              Normal
  03/09/2026 06 AM PDT           57.51             41         0              Normal
  03/09/2026 07 AM PDT           57.51             41         0              Normal
  03/09/2026 08 AM PDT           57.50             41         -              Normal
  03/09/2026 09 AM PDT           57.50             41         0              Normal
  03/09/2026 10 AM PDT           57.50             41         0              Normal
  03/09/2026 11 AM PDT           57.49             40         -              Normal
  03/09/2026 12 PM PDT           57.49             40         0              Normal
  03/09/2026 01 PM PDT           57.49             40         0              Normal
  03/09/2026 02 PM PDT           57.48             40         -              Normal
  03/09/2026 03 PM PDT           57.48             40         0              Normal
  03/09/2026 04 PM PDT           57.48             40         0              Normal
  03/09/2026 05 PM PDT           57.48             40         0              Normal
  03/09/2026 06 PM PDT           57.47             40         -              Normal
  03/09/2026 07 PM PDT           57.47             40         0              Normal
  03/09/2026 08 PM PDT           57.47             40         0              Normal
  03/09/2026 09 PM PDT           57.46             39         -              Normal
  03/09/2026 10 PM PDT           57.46             39         0              Normal
  03/09/2026 11 PM PDT           57.46             39         0              Normal
  03/10/2026 12 AM PDT           57.46             39         0              Normal
  03/10/2026 01 AM PDT           57.45             39         -              Normal
  03/10/2026 02 AM PDT           57.45             39         0              Normal
  03/10/2026 03 AM PDT           57.45             39         0              Normal
  03/10/2026 04 AM PDT           57.44             38         -              Normal
  03/10/2026 05 AM PDT           57.44             38         0              Normal
  03/10/2026 06 AM PDT           57.44             38         0              Normal
  03/10/2026 07 AM PDT           57.44             38         0              Normal
  03/10/2026 08 AM PDT           57.43             38         -              Normal
  03/10/2026 09 AM PDT           57.43             38         0              Normal
  03/10/2026 10 AM PDT           57.43             38         0              Normal
  03/10/2026 11 AM PDT           57.42             38         -              Normal
  03/10/2026 12 PM PDT           57.42             38         0              Normal
  03/10/2026 01 PM PDT           57.42             38         0              Normal
  03/10/2026 02 PM PDT           57.42             38         0              Normal
  03/10/2026 03 PM PDT           57.41             37         -              Normal
  03/10/2026 04 PM PDT           57.41             37         0              Normal
  03/10/2026 05 PM PDT           57.41             37         0              Normal
  03/10/2026 06 PM PDT           57.41             37         0              Normal
  03/10/2026 07 PM PDT           57.41             37         0              Normal
  03/10/2026 08 PM PDT           57.40             37         -              Normal
  03/10/2026 09 PM PDT           57.40             37         0              Normal
  03/10/2026 10 PM PDT           57.40             37         0              Normal
  03/10/2026 11 PM PDT           57.40             37         0              Normal
  03/11/2026 12 AM PDT           57.39             36         -              Normal
  03/11/2026 01 AM PDT           57.39             36         0              Normal
  03/11/2026 02 AM PDT           57.39             36         0              Normal
  03/11/2026 03 AM PDT           57.39             36         0              Normal
  03/11/2026 04 AM PDT           57.38             36         -              Normal
  03/11/2026 05 AM PDT           57.38             36         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.