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: Apr 06 2026 at 1:08 PM PDTNext Issuance: Apr 07 2026 at 9:00 AM PDT
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:  04/06/2026 at 01:09 PM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/04/2026 at 01:00 AM PDT
# Maximum Observed Stage:                       56.75 Feet
# Maximum Observed Flow:                        18 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/11/2026 at 05:00 AM PDT
# Maximum Forecast Stage:                       57.29 Feet
# Maximum Forecast Flow:                        33 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/01/2026 01 PM PDT           56.64             15                        Normal
  04/01/2026 02 PM PDT           56.64             15         0              Normal
  04/01/2026 03 PM PDT           56.65             16         +              Normal
  04/01/2026 04 PM PDT           56.65             16         0              Normal
  04/01/2026 05 PM PDT           56.65             16         0              Normal
  04/01/2026 06 PM PDT           56.65             16         0              Normal
  04/01/2026 07 PM PDT           56.66             16         +              Normal
  04/01/2026 08 PM PDT           56.67             16         +              Normal
  04/01/2026 09 PM PDT           56.67             16         0              Normal
  04/01/2026 10 PM PDT           56.68             16         +              Normal
  04/01/2026 11 PM PDT           56.68             16         0              Normal
  04/02/2026 12 AM PDT           56.69             16         +              Normal
  04/02/2026 01 AM PDT           56.69             16         0              Normal
  04/02/2026 02 AM PDT           56.70             17         +              Normal
  04/02/2026 03 AM PDT           56.70             17         0              Normal
  04/02/2026 04 AM PDT           56.70             17         0              Normal
  04/02/2026 05 AM PDT           56.71             17         +              Normal
  04/02/2026 06 AM PDT           56.71             17         0              Normal
  04/02/2026 07 AM PDT           56.71             17         0              Normal
  04/02/2026 08 AM PDT           56.71             17         0              Normal
  04/02/2026 09 AM PDT           56.72             17         +              Normal
  04/02/2026 10 AM PDT           56.72             17         0              Normal
  04/02/2026 11 AM PDT           56.72             17         0              Normal
  04/02/2026 12 PM PDT           56.72             17         0              Normal
  04/02/2026 01 PM PDT           56.73             17         +              Normal
  04/02/2026 02 PM PDT           56.73             17         0              Normal
  04/02/2026 03 PM PDT           56.73             17         0              Normal
  04/02/2026 04 PM PDT           56.73             17         0              Normal
  04/02/2026 05 PM PDT           56.74             17         +              Normal
  04/02/2026 06 PM PDT           56.73             17         -              Normal
  04/02/2026 07 PM PDT           56.74             17         +              Normal
  04/02/2026 08 PM PDT           56.74             17         0              Normal
  04/02/2026 09 PM PDT           56.73             17         -              Normal
  04/02/2026 10 PM PDT           56.74             17         +              Normal
  04/02/2026 11 PM PDT           56.73             17         -              Normal
  04/03/2026 12 AM PDT           56.74             17         +              Normal
  04/03/2026 01 AM PDT           56.74             17         0              Normal
  04/03/2026 02 AM PDT           56.74             17         0              Normal
  04/03/2026 03 AM PDT           56.74             17         0              Normal
  04/03/2026 04 AM PDT           56.74             17         0              Normal
  04/03/2026 05 AM PDT           56.74             17         0              Normal
  04/03/2026 06 AM PDT           56.74             17         0              Normal
  04/03/2026 07 AM PDT           56.74             17         0              Normal
  04/03/2026 08 AM PDT           56.74             17         0              Normal
  04/03/2026 09 AM PDT           56.74             17         0              Normal
  04/03/2026 10 AM PDT           56.74             17         0              Normal
  04/03/2026 11 AM PDT           56.75             18         +              Normal
  04/03/2026 12 PM PDT           56.75             18         0              Normal
  04/03/2026 01 PM PDT           56.75             18         0              Normal
  04/03/2026 02 PM PDT           56.75             18         0              Normal
  04/03/2026 03 PM PDT           56.75             18         0              Normal
  04/03/2026 04 PM PDT           56.75             18         0              Normal
  04/03/2026 05 PM PDT           56.75             18         0              Normal
  04/03/2026 06 PM PDT           56.75             18         0              Normal
  04/03/2026 07 PM PDT           56.75             18         0              Normal
  04/03/2026 08 PM PDT           56.75             18         0              Normal
  04/03/2026 09 PM PDT           56.75             18         0              Normal
  04/03/2026 10 PM PDT           56.75             18         0              Normal
  04/03/2026 11 PM PDT           56.75             18         0              Normal
  04/04/2026 12 AM PDT           56.75             18         0              Normal
  04/04/2026 01 AM PDT           56.75             18         0              Normal
  04/04/2026 02 AM PDT           56.74             17         -              Normal
  04/04/2026 03 AM PDT           56.74             17         0              Normal
  04/04/2026 04 AM PDT           56.74             17         0              Normal
  04/04/2026 05 AM PDT           56.74             17         0              Normal
  04/04/2026 06 AM PDT           56.74             17         0              Normal
  04/04/2026 07 AM PDT           56.74             17         0              Normal
  04/04/2026 08 AM PDT           56.74             17         0              Normal
  04/04/2026 09 AM PDT           56.74             17         0              Normal
  04/04/2026 10 AM PDT           56.74             17         0              Normal
  04/04/2026 11 AM PDT           56.74             17         0              Normal
  04/04/2026 12 PM PDT           56.74             17         0              Normal
  04/04/2026 01 PM PDT           56.74             17         0              Normal
  04/04/2026 02 PM PDT           56.74             17         0              Normal
  04/04/2026 03 PM PDT           56.74             17         0              Normal
  04/04/2026 04 PM PDT           56.74             17         0              Normal
  04/04/2026 05 PM PDT           56.73             17         -              Normal
  04/04/2026 06 PM PDT           56.74             17         +              Normal
  04/04/2026 07 PM PDT           56.73             17         -              Normal
  04/04/2026 08 PM PDT           56.73             17         0              Normal
  04/04/2026 09 PM PDT           56.73             17         0              Normal
  04/04/2026 10 PM PDT           56.73             17         0              Normal
  04/04/2026 11 PM PDT           56.73             17         0              Normal
  04/05/2026 12 AM PDT           56.72             17         -              Normal
  04/05/2026 01 AM PDT           56.72             17         0              Normal
  04/05/2026 02 AM PDT           56.72             17         0              Normal
  04/05/2026 03 AM PDT           56.72             17         0              Normal
  04/05/2026 04 AM PDT           56.72             17         0              Normal
  04/05/2026 05 AM PDT           56.72             17         0              Normal
  04/05/2026 06 AM PDT           56.72             17         0              Normal
  04/05/2026 07 AM PDT           56.71             17         -              Normal
  04/05/2026 08 AM PDT           56.71             17         0              Normal
  04/05/2026 09 AM PDT           56.71             17         0              Normal
  04/05/2026 10 AM PDT           56.71             17         0              Normal
  04/05/2026 11 AM PDT           56.71             17         0              Normal
  04/05/2026 12 PM PDT           56.71             17         0              Normal
  04/05/2026 01 PM PDT           56.71             17         0              Normal
  04/05/2026 02 PM PDT           56.71             17         0              Normal
  04/05/2026 03 PM PDT           56.70             17         -              Normal
  04/05/2026 04 PM PDT           56.70             17         0              Normal
  04/05/2026 05 PM PDT           56.70             17         0              Normal
  04/05/2026 06 PM PDT           56.70             17         0              Normal
  04/05/2026 07 PM PDT           56.70             17         0              Normal
  04/05/2026 08 PM PDT           56.70             17         0              Normal
  04/05/2026 09 PM PDT           56.69             16         -              Normal
  04/05/2026 10 PM PDT           56.69             16         0              Normal
  04/05/2026 11 PM PDT           56.69             16         0              Normal
  04/06/2026 12 AM PDT           56.69             16         0              Normal
  04/06/2026 01 AM PDT           56.68             16         -              Normal
  04/06/2026 02 AM PDT           56.68             16         0              Normal
  04/06/2026 03 AM PDT           56.68             16         0              Normal
  04/06/2026 04 AM PDT           56.68             16         0              Normal
  04/06/2026 05 AM PDT           56.68             16         0              Normal
  04/06/2026 06 AM PDT           56.68             16         0              Normal
  04/06/2026 07 AM PDT           56.68             16         0              Normal
  04/06/2026 08 AM PDT           56.68             16         0              Normal
  04/06/2026 09 AM PDT           56.67             16         -              Normal
  04/06/2026 10 AM PDT           56.67             16         0              Normal
  04/06/2026 11 AM PDT           56.67             16         0              Normal
  04/06/2026 12 PM PDT           56.67             16         0              Normal
  04/06/2026 01 PM PDT           56.66             16         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/06/2026 02 PM PDT           56.66             16                        Normal
  04/06/2026 03 PM PDT           56.66             16         0              Normal
  04/06/2026 04 PM PDT           56.65             16         -              Normal
  04/06/2026 05 PM PDT           56.65             16         0              Normal
  04/06/2026 06 PM PDT           56.64             15         -              Normal
  04/06/2026 07 PM PDT           56.64             15         0              Normal
  04/06/2026 08 PM PDT           56.64             15         0              Normal
  04/06/2026 09 PM PDT           56.63             15         -              Normal
  04/06/2026 10 PM PDT           56.63             15         0              Normal
  04/06/2026 11 PM PDT           56.62             15         -              Normal
  04/07/2026 12 AM PDT           56.62             15         0              Normal
  04/07/2026 01 AM PDT           56.62             15         0              Normal
  04/07/2026 02 AM PDT           56.62             15         0              Normal
  04/07/2026 03 AM PDT           56.62             15         0              Normal
  04/07/2026 04 AM PDT           56.61             15         -              Normal
  04/07/2026 05 AM PDT           56.61             15         0              Normal
  04/07/2026 06 AM PDT           56.61             15         0              Normal
  04/07/2026 07 AM PDT           56.61             15         0              Normal
  04/07/2026 08 AM PDT           56.60             15         -              Normal
  04/07/2026 09 AM PDT           56.60             15         0              Normal
  04/07/2026 10 AM PDT           56.60             15         0              Normal
  04/07/2026 11 AM PDT           56.60             15         0              Normal
  04/07/2026 12 PM PDT           56.60             15         0              Normal
  04/07/2026 01 PM PDT           56.60             15         0              Normal
  04/07/2026 02 PM PDT           56.60             15         0              Normal
  04/07/2026 03 PM PDT           56.60             15         0              Normal
  04/07/2026 04 PM PDT           56.59             14         -              Normal
  04/07/2026 05 PM PDT           56.59             14         0              Normal
  04/07/2026 06 PM PDT           56.59             14         0              Normal
  04/07/2026 07 PM PDT           56.59             14         0              Normal
  04/07/2026 08 PM PDT           56.59             14         0              Normal
  04/07/2026 09 PM PDT           56.59             14         0              Normal
  04/07/2026 10 PM PDT           56.59             14         0              Normal
  04/07/2026 11 PM PDT           56.59             14         0              Normal
  04/08/2026 12 AM PDT           56.59             14         0              Normal
  04/08/2026 01 AM PDT           56.59             14         0              Normal
  04/08/2026 02 AM PDT           56.59             14         0              Normal
  04/08/2026 03 AM PDT           56.59             14         0              Normal
  04/08/2026 04 AM PDT           56.58             14         -              Normal
  04/08/2026 05 AM PDT           56.58             14         0              Normal
  04/08/2026 06 AM PDT           56.58             14         0              Normal
  04/08/2026 07 AM PDT           56.58             14         0              Normal
  04/08/2026 08 AM PDT           56.58             14         0              Normal
  04/08/2026 09 AM PDT           56.58             14         0              Normal
  04/08/2026 10 AM PDT           56.58             14         0              Normal
  04/08/2026 11 AM PDT           56.58             14         0              Normal
  04/08/2026 12 PM PDT           56.58             14         0              Normal
  04/08/2026 01 PM PDT           56.58             14         0              Normal
  04/08/2026 02 PM PDT           56.58             14         0              Normal
  04/08/2026 03 PM PDT           56.58             14         0              Normal
  04/08/2026 04 PM PDT           56.58             14         0              Normal
  04/08/2026 05 PM PDT           56.58             14         0              Normal
  04/08/2026 06 PM PDT           56.58             14         0              Normal
  04/08/2026 07 PM PDT           56.58             14         0              Normal
  04/08/2026 08 PM PDT           56.58             14         0              Normal
  04/08/2026 09 PM PDT           56.58             14         0              Normal
  04/08/2026 10 PM PDT           56.58             14         0              Normal
  04/08/2026 11 PM PDT           56.58             14         0              Normal
  04/09/2026 12 AM PDT           56.58             14         0              Normal
  04/09/2026 01 AM PDT           56.58             14         0              Normal
  04/09/2026 02 AM PDT           56.58             14         0              Normal
  04/09/2026 03 AM PDT           56.58             14         0              Normal
  04/09/2026 04 AM PDT           56.58             14         0              Normal
  04/09/2026 05 AM PDT           56.58             14         0              Normal
  04/09/2026 06 AM PDT           56.58             14         0              Normal
  04/09/2026 07 AM PDT           56.58             14         0              Normal
  04/09/2026 08 AM PDT           56.58             14         0              Normal
  04/09/2026 09 AM PDT           56.58             14         0              Normal
  04/09/2026 10 AM PDT           56.58             14         0              Normal
  04/09/2026 11 AM PDT           56.58             14         0              Normal
  04/09/2026 12 PM PDT           56.58             14         0              Normal
  04/09/2026 01 PM PDT           56.58             14         0              Normal
  04/09/2026 02 PM PDT           56.58             14         0              Normal
  04/09/2026 03 PM PDT           56.58             14         0              Normal
  04/09/2026 04 PM PDT           56.58             14         0              Normal
  04/09/2026 05 PM PDT           56.58             14         0              Normal
  04/09/2026 06 PM PDT           56.58             14         0              Normal
  04/09/2026 07 PM PDT           56.58             14         0              Normal
  04/09/2026 08 PM PDT           56.58             14         0              Normal
  04/09/2026 09 PM PDT           56.58             14         0              Normal
  04/09/2026 10 PM PDT           56.58             14         0              Normal
  04/09/2026 11 PM PDT           56.58             14         0              Normal
  04/10/2026 12 AM PDT           56.58             14         0              Normal
  04/10/2026 01 AM PDT           56.59             14         +              Normal
  04/10/2026 02 AM PDT           56.59             14         0              Normal
  04/10/2026 03 AM PDT           56.61             15         +              Normal
  04/10/2026 04 AM PDT           56.63             15         +              Normal
  04/10/2026 05 AM PDT           56.66             16         +              Normal
  04/10/2026 06 AM PDT           56.70             17         +              Normal
  04/10/2026 07 AM PDT           56.73             17         +              Normal
  04/10/2026 08 AM PDT           56.77             18         +              Normal
  04/10/2026 09 AM PDT           56.80             19         +              Normal
  04/10/2026 10 AM PDT           56.82             19         +              Normal
  04/10/2026 11 AM PDT           56.84             20         +              Normal
  04/10/2026 12 PM PDT           56.86             20         +              Normal
  04/10/2026 01 PM PDT           56.87             20         +              Normal
  04/10/2026 02 PM PDT           56.88             21         +              Normal
  04/10/2026 03 PM PDT           56.89             21         +              Normal
  04/10/2026 04 PM PDT           56.89             21         0              Normal
  04/10/2026 05 PM PDT           56.89             21         0              Normal
  04/10/2026 06 PM PDT           56.89             21         0              Normal
  04/10/2026 07 PM PDT           56.89             21         0              Normal
  04/10/2026 08 PM PDT           56.89             21         0              Normal
  04/10/2026 09 PM PDT           56.89             21         0              Normal
  04/10/2026 10 PM PDT           56.91             21         +              Normal
  04/10/2026 11 PM PDT           56.93             22         +              Normal
  04/11/2026 12 AM PDT           56.96             23         +              Normal
  04/11/2026 01 AM PDT           56.99             24         +              Normal
  04/11/2026 02 AM PDT           57.04             25         +              Normal
  04/11/2026 03 AM PDT           57.10             27         +              Normal
  04/11/2026 04 AM PDT           57.18             29         +              Normal
  04/11/2026 05 AM PDT           57.29             33         +              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.