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: Oct 30 2026 at 8:19 AM PDTNext Issuance: Oct 31 2026 at 9:00 AM PDT
Action: 67.0 FeetMinor Flood: 69.0 FeetModerate Flood: N/A Major Flood: N/A
Please Note:Stage forecasts at this location are uncertain due to backwater effects.

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Laguna De Santa Rosa - Sebastopol (LSEC1)
#
# File Generation Time:  10/30/2026 at 08:19 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/30/2026 at 08:00 AM PDT
# Maximum Observed Stage:                       55.63 Feet
# Maximum Observed Flow:                        2 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/01/2026 at 10:00 PM PST
# Maximum Forecast Stage:                       55.75 Feet
# Maximum Forecast Flow:                        3 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/25/2026 08 AM PDT           55.59              2                        Normal
  10/25/2026 09 AM PDT           55.59              2         0              Normal
  10/25/2026 10 AM PDT           55.59              2         0              Normal
  10/25/2026 11 AM PDT           55.59              2         0              Normal
  10/25/2026 12 PM PDT           55.59              2         0              Normal
  10/25/2026 01 PM PDT           55.59              2         0              Normal
  10/25/2026 02 PM PDT           55.60              2         +              Normal
  10/25/2026 03 PM PDT           55.60              2         0              Normal
  10/25/2026 04 PM PDT           55.60              2         0              Normal
  10/25/2026 05 PM PDT           55.60              2         0              Normal
  10/25/2026 06 PM PDT           55.60              2         0              Normal
  10/25/2026 07 PM PDT           55.60              2         0              Normal
  10/25/2026 08 PM PDT           55.60              2         0              Normal
  10/25/2026 09 PM PDT           55.60              2         0              Normal
  10/25/2026 10 PM PDT           55.60              2         0              Normal
  10/25/2026 11 PM PDT           55.60              2         0              Normal
  10/26/2026 12 AM PDT           55.60              2         0              Normal
  10/26/2026 01 AM PDT           55.60              2         0              Normal
  10/26/2026 02 AM PDT           55.60              2         0              Normal
  10/26/2026 03 AM PDT           55.60              2         0              Normal
  10/26/2026 04 AM PDT           55.60              2         0              Normal
  10/26/2026 05 AM PDT           55.60              2         0              Normal
  10/26/2026 06 AM PDT           55.60              2         0              Normal
  10/26/2026 07 AM PDT           55.60              2         0              Normal
  10/26/2026 08 AM PDT           55.60              2         0              Normal
  10/26/2026 09 AM PDT           55.60              2         0              Normal
  10/26/2026 10 AM PDT           55.60              2         0              Normal
  10/26/2026 11 AM PDT           55.60              2         0              Normal
  10/26/2026 12 PM PDT           55.60              2         0              Normal
  10/26/2026 01 PM PDT           55.61              2         +              Normal
  10/26/2026 02 PM PDT           55.61              2         0              Normal
  10/26/2026 03 PM PDT           55.60              2         -              Normal
  10/26/2026 04 PM PDT           55.61              2         +              Normal
  10/26/2026 05 PM PDT           55.61              2         0              Normal
  10/26/2026 06 PM PDT           55.61              2         0              Normal
  10/26/2026 07 PM PDT           55.61              2         0              Normal
  10/26/2026 08 PM PDT           55.61              2         0              Normal
  10/26/2026 09 PM PDT           55.61              2         0              Normal
  10/26/2026 10 PM PDT           55.61              2         0              Normal
  10/26/2026 11 PM PDT           55.60              2         -              Normal
  10/27/2026 12 AM PDT           55.61              2         +              Normal
  10/27/2026 01 AM PDT           55.60              2         -              Normal
  10/27/2026 02 AM PDT           55.60              2         0              Normal
  10/27/2026 03 AM PDT           55.61              2         +              Normal
  10/27/2026 04 AM PDT           55.61              2         0              Normal
  10/27/2026 05 AM PDT           55.61              2         0              Normal
  10/27/2026 06 AM PDT           55.61              2         0              Normal
  10/27/2026 07 AM PDT           55.61              2         0              Normal
  10/27/2026 08 AM PDT           55.61              2         0              Normal
  10/27/2026 09 AM PDT           55.61              2         0              Normal
  10/27/2026 10 AM PDT           55.61              2         0              Normal
  10/27/2026 11 AM PDT           55.61              2         0              Normal
  10/27/2026 12 PM PDT           55.61              2         0              Normal
  10/27/2026 01 PM PDT           55.61              2         0              Normal
  10/27/2026 02 PM PDT           55.61              2         0              Normal
  10/27/2026 03 PM PDT           55.61              2         0              Normal
  10/27/2026 04 PM PDT           55.61              2         0              Normal
  10/27/2026 05 PM PDT           55.62              2         +              Normal
  10/27/2026 06 PM PDT           55.61              2         -              Normal
  10/27/2026 07 PM PDT           55.62              2         +              Normal
  10/27/2026 08 PM PDT           55.61              2         -              Normal
  10/27/2026 09 PM PDT           55.61              2         0              Normal
  10/27/2026 10 PM PDT           55.61              2         0              Normal
  10/27/2026 11 PM PDT           55.61              2         0              Normal
  10/28/2026 12 AM PDT           55.61              2         0              Normal
  10/28/2026 01 AM PDT           55.61              2         0              Normal
  10/28/2026 02 AM PDT           55.61              2         0              Normal
  10/28/2026 03 AM PDT           55.61              2         0              Normal
  10/28/2026 04 AM PDT           55.61              2         0              Normal
  10/28/2026 05 AM PDT           55.61              2         0              Normal
  10/28/2026 06 AM PDT           55.61              2         0              Normal
  10/28/2026 07 AM PDT           55.61              2         0              Normal
  10/28/2026 08 AM PDT           55.61              2         0              Normal
  10/28/2026 09 AM PDT           55.62              2         +              Normal
  10/28/2026 10 AM PDT           55.61              2         -              Normal
  10/28/2026 11 AM PDT           55.62              2         +              Normal
  10/28/2026 12 PM PDT           55.62              2         0              Normal
  10/28/2026 01 PM PDT           55.62              2         0              Normal
  10/28/2026 02 PM PDT           55.62              2         0              Normal
  10/28/2026 03 PM PDT           55.62              2         0              Normal
  10/28/2026 04 PM PDT           55.62              2         0              Normal
  10/28/2026 05 PM PDT           55.62              2         0              Normal
  10/28/2026 06 PM PDT           55.62              2         0              Normal
  10/28/2026 07 PM PDT           55.62              2         0              Normal
  10/28/2026 08 PM PDT           55.62              2         0              Normal
  10/28/2026 09 PM PDT           55.62              2         0              Normal
  10/28/2026 10 PM PDT           55.61              2         -              Normal
  10/28/2026 11 PM PDT           55.61              2         0              Normal
  10/29/2026 12 AM PDT           55.62              2         +              Normal
  10/29/2026 01 AM PDT           55.61              2         -              Normal
  10/29/2026 02 AM PDT           55.61              2         0              Normal
  10/29/2026 03 AM PDT           55.61              2         0              Normal
  10/29/2026 04 AM PDT           55.62              2         +              Normal
  10/29/2026 05 AM PDT           55.62              2         0              Normal
  10/29/2026 06 AM PDT           55.62              2         0              Normal
  10/29/2026 07 AM PDT           55.62              2         0              Normal
  10/29/2026 08 AM PDT           55.62              2         0              Normal
  10/29/2026 09 AM PDT           55.62              2         0              Normal
  10/29/2026 10 AM PDT           55.62              2         0              Normal
  10/29/2026 11 AM PDT           55.62              2         0              Normal
  10/29/2026 12 PM PDT           55.62              2         0              Normal
  10/29/2026 01 PM PDT           55.62              2         0              Normal
  10/29/2026 02 PM PDT           55.62              2         0              Normal
  10/29/2026 03 PM PDT           55.62              2         0              Normal
  10/29/2026 04 PM PDT           55.62              2         0              Normal
  10/29/2026 05 PM PDT           55.62              2         0              Normal
  10/29/2026 06 PM PDT           55.62              2         0              Normal
  10/29/2026 07 PM PDT           55.62              2         0              Normal
  10/29/2026 08 PM PDT           55.62              2         0              Normal
  10/29/2026 09 PM PDT           55.62              2         0              Normal
  10/29/2026 10 PM PDT           55.62              2         0              Normal
  10/29/2026 11 PM PDT           55.62              2         0              Normal
  10/30/2026 12 AM PDT           55.62              2         0              Normal
  10/30/2026 01 AM PDT           55.62              2         0              Normal
  10/30/2026 02 AM PDT           55.62              2         0              Normal
  10/30/2026 03 AM PDT           55.62              2         0              Normal
  10/30/2026 04 AM PDT           55.62              2         0              Normal
  10/30/2026 05 AM PDT           55.63              2         +              Normal
  10/30/2026 06 AM PDT           55.63              2         0              Normal
  10/30/2026 07 AM PDT           55.63              2         0              Normal
  10/30/2026 08 AM PDT           55.63              2         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/30/2026 09 AM PDT           55.63              2                        Normal
  10/30/2026 10 AM PDT           55.63              2         0              Normal
  10/30/2026 11 AM PDT           55.63              2         0              Normal
  10/30/2026 12 PM PDT           55.63              2         0              Normal
  10/30/2026 01 PM PDT           55.63              2         0              Normal
  10/30/2026 02 PM PDT           55.63              2         0              Normal
  10/30/2026 03 PM PDT           55.63              2         0              Normal
  10/30/2026 04 PM PDT           55.63              2         0              Normal
  10/30/2026 05 PM PDT           55.63              2         0              Normal
  10/30/2026 06 PM PDT           55.63              2         0              Normal
  10/30/2026 07 PM PDT           55.63              2         0              Normal
  10/30/2026 08 PM PDT           55.63              2         0              Normal
  10/30/2026 09 PM PDT           55.63              2         0              Normal
  10/30/2026 10 PM PDT           55.63              2         0              Normal
  10/30/2026 11 PM PDT           55.63              2         0              Normal
  10/31/2026 12 AM PDT           55.63              2         0              Normal
  10/31/2026 01 AM PDT           55.63              2         0              Normal
  10/31/2026 02 AM PDT           55.63              2         0              Normal
  10/31/2026 03 AM PDT           55.63              2         0              Normal
  10/31/2026 04 AM PDT           55.63              2         0              Normal
  10/31/2026 05 AM PDT           55.63              2         0              Normal
  10/31/2026 06 AM PDT           55.63              2         0              Normal
  10/31/2026 07 AM PDT           55.63              2         0              Normal
  10/31/2026 08 AM PDT           55.63              2         0              Normal
  10/31/2026 09 AM PDT           55.63              2         0              Normal
  10/31/2026 10 AM PDT           55.63              2         0              Normal
  10/31/2026 11 AM PDT           55.63              2         0              Normal
  10/31/2026 12 PM PDT           55.63              2         0              Normal
  10/31/2026 01 PM PDT           55.63              2         0              Normal
  10/31/2026 02 PM PDT           55.63              2         0              Normal
  10/31/2026 03 PM PDT           55.63              2         0              Normal
  10/31/2026 04 PM PDT           55.63              2         0              Normal
  10/31/2026 05 PM PDT           55.63              2         0              Normal
  10/31/2026 06 PM PDT           55.63              2         0              Normal
  10/31/2026 07 PM PDT           55.63              2         0              Normal
  10/31/2026 08 PM PDT           55.63              2         0              Normal
  10/31/2026 09 PM PDT           55.63              2         0              Normal
  10/31/2026 10 PM PDT           55.63              2         0              Normal
  10/31/2026 11 PM PDT           55.63              2         0              Normal
  11/01/2026 12 AM PDT           55.63              2         0              Normal
  11/01/2026 01 AM PDT           55.63              2         0              Normal
  11/01/2026 01 AM PST           55.63              2         0              Normal
  11/01/2026 02 AM PST           55.63              2         0              Normal
  11/01/2026 03 AM PST           55.63              2         0              Normal
  11/01/2026 04 AM PST           55.63              2         0              Normal
  11/01/2026 05 AM PST           55.63              2         0              Normal
  11/01/2026 06 AM PST           55.63              2         0              Normal
  11/01/2026 07 AM PST           55.63              2         0              Normal
  11/01/2026 08 AM PST           55.63              2         0              Normal
  11/01/2026 09 AM PST           55.63              2         0              Normal
  11/01/2026 10 AM PST           55.63              2         0              Normal
  11/01/2026 11 AM PST           55.63              2         0              Normal
  11/01/2026 12 PM PST           55.63              2         0              Normal
  11/01/2026 01 PM PST           55.63              2         0              Normal
  11/01/2026 02 PM PST           55.63              2         0              Normal
  11/01/2026 03 PM PST           55.63              2         0              Normal
  11/01/2026 04 PM PST           55.63              2         0              Normal
  11/01/2026 05 PM PST           55.64              3         +              Normal
  11/01/2026 06 PM PST           55.67              3         +              Normal
  11/01/2026 07 PM PST           55.71              3         +              Normal
  11/01/2026 08 PM PST           55.73              3         +              Normal
  11/01/2026 09 PM PST           55.74              3         +              Normal
  11/01/2026 10 PM PST           55.75              3         +              Normal
  11/01/2026 11 PM PST           55.75              3         0              Normal
  11/02/2026 12 AM PST           55.74              3         -              Normal
  11/02/2026 01 AM PST           55.74              3         0              Normal
  11/02/2026 02 AM PST           55.73              3         -              Normal
  11/02/2026 03 AM PST           55.73              3         0              Normal
  11/02/2026 04 AM PST           55.72              3         -              Normal
  11/02/2026 05 AM PST           55.71              3         -              Normal
  11/02/2026 06 AM PST           55.70              3         -              Normal
  11/02/2026 07 AM PST           55.70              3         0              Normal
  11/02/2026 08 AM PST           55.69              3         -              Normal
  11/02/2026 09 AM PST           55.68              3         -              Normal
  11/02/2026 10 AM PST           55.67              3         -              Normal
  11/02/2026 11 AM PST           55.67              3         0              Normal
  11/02/2026 12 PM PST           55.66              3         -              Normal
  11/02/2026 01 PM PST           55.65              3         -              Normal
  11/02/2026 02 PM PST           55.64              3         -              Normal
  11/02/2026 03 PM PST           55.63              2         -              Normal
  11/02/2026 04 PM PST           55.63              2         0              Normal
  11/02/2026 05 PM PST           55.63              2         0              Normal
  11/02/2026 06 PM PST           55.63              2         0              Normal
  11/02/2026 07 PM PST           55.63              2         0              Normal
  11/02/2026 08 PM PST           55.63              2         0              Normal
  11/02/2026 09 PM PST           55.63              2         0              Normal
  11/02/2026 10 PM PST           55.63              2         0              Normal
  11/02/2026 11 PM PST           55.63              2         0              Normal
  11/03/2026 12 AM PST           55.63              2         0              Normal
  11/03/2026 01 AM PST           55.63              2         0              Normal
  11/03/2026 02 AM PST           55.63              2         0              Normal
  11/03/2026 03 AM PST           55.63              2         0              Normal
  11/03/2026 04 AM PST           55.63              2         0              Normal
  11/03/2026 05 AM PST           55.63              2         0              Normal
  11/03/2026 06 AM PST           55.63              2         0              Normal
  11/03/2026 07 AM PST           55.63              2         0              Normal
  11/03/2026 08 AM PST           55.63              2         0              Normal
  11/03/2026 09 AM PST           55.63              2         0              Normal
  11/03/2026 10 AM PST           55.63              2         0              Normal
  11/03/2026 11 AM PST           55.63              2         0              Normal
  11/03/2026 12 PM PST           55.63              2         0              Normal
  11/03/2026 01 PM PST           55.63              2         0              Normal
  11/03/2026 02 PM PST           55.63              2         0              Normal
  11/03/2026 03 PM PST           55.63              2         0              Normal
  11/03/2026 04 PM PST           55.63              2         0              Normal
  11/03/2026 05 PM PST           55.63              2         0              Normal
  11/03/2026 06 PM PST           55.63              2         0              Normal
  11/03/2026 07 PM PST           55.63              2         0              Normal
  11/03/2026 08 PM PST           55.63              2         0              Normal
  11/03/2026 09 PM PST           55.63              2         0              Normal
  11/03/2026 10 PM PST           55.63              2         0              Normal
  11/03/2026 11 PM PST           55.63              2         0              Normal
  11/04/2026 12 AM PST           55.63              2         0              Normal
  11/04/2026 01 AM PST           55.63              2         0              Normal
  11/04/2026 02 AM PST           55.63              2         0              Normal
  11/04/2026 03 AM PST           55.63              2         0              Normal
  11/04/2026 04 AM PST           55.63              2         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.