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

 | 

SOUTH FORK GUALALA RIVER - SEA RANCH (GSRC1)
Latitude: 38.71º NLongitude: 123.43º WElevation: 40 FeetForecast Type: Unofficial Location
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Mar 24 2026 at 6:55 AM PDTNext Issuance: Mar 24 2026 at 3:00 PM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: South Fork Gualala River - Sea Ranch (GSRC1)
#
# File Generation Time:  03/24/2026 at 06:57 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/19/2026 at 06:00 AM PDT
# Maximum Observed Stage:                       5.91 Feet
# Maximum Observed Flow:                        94 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/24/2026 at 07:00 AM PDT
# Maximum Forecast Stage:                       5.71 Feet
# Maximum Forecast Flow:                        71 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/19/2026 06 AM PDT            5.91             94                Not Applicable
  03/19/2026 07 AM PDT            5.90             93         -      Not Applicable
  03/19/2026 08 AM PDT            5.90             93         0      Not Applicable
  03/19/2026 09 AM PDT            5.90             93         0      Not Applicable
  03/19/2026 10 AM PDT            5.90             93         0      Not Applicable
  03/19/2026 11 AM PDT            5.90             93         0      Not Applicable
  03/19/2026 12 PM PDT            5.89             92         -      Not Applicable
  03/19/2026 01 PM PDT            5.89             92         0      Not Applicable
  03/19/2026 02 PM PDT            5.89             92         0      Not Applicable
  03/19/2026 03 PM PDT            5.88             91         -      Not Applicable
  03/19/2026 04 PM PDT            5.88             91         0      Not Applicable
  03/19/2026 05 PM PDT            5.88             91         0      Not Applicable
  03/19/2026 06 PM PDT            5.88             91         0      Not Applicable
  03/19/2026 07 PM PDT            5.88             91         0      Not Applicable
  03/19/2026 08 PM PDT            5.89             92         +      Not Applicable
  03/19/2026 09 PM PDT            5.88             91         -      Not Applicable
  03/19/2026 10 PM PDT            5.87             89         -      Not Applicable
  03/19/2026 11 PM PDT            5.87             89         0      Not Applicable
  03/20/2026 12 AM PDT            5.87             89         0      Not Applicable
  03/20/2026 01 AM PDT            5.87             89         0      Not Applicable
  03/20/2026 02 AM PDT            5.87             89         0      Not Applicable
  03/20/2026 03 AM PDT            5.87             89         0      Not Applicable
  03/20/2026 04 AM PDT            5.87             89         0      Not Applicable
  03/20/2026 05 AM PDT            5.87             89         0      Not Applicable
  03/20/2026 06 AM PDT            5.87             89         0      Not Applicable
  03/20/2026 07 AM PDT            5.86             88         -      Not Applicable
  03/20/2026 08 AM PDT            5.86             88         0      Not Applicable
  03/20/2026 09 AM PDT            5.86             88         0      Not Applicable
  03/20/2026 10 AM PDT            5.86             88         0      Not Applicable
  03/20/2026 11 AM PDT            5.85             87         -      Not Applicable
  03/20/2026 12 PM PDT            5.85             87         0      Not Applicable
  03/20/2026 01 PM PDT            5.85             87         0      Not Applicable
  03/20/2026 02 PM PDT            5.84             86         -      Not Applicable
  03/20/2026 03 PM PDT            5.84             86         0      Not Applicable
  03/20/2026 04 PM PDT            5.84             86         0      Not Applicable
  03/20/2026 05 PM PDT            5.84             86         0      Not Applicable
  03/20/2026 06 PM PDT            5.84             86         0      Not Applicable
  03/20/2026 07 PM PDT            5.84             86         0      Not Applicable
  03/20/2026 08 PM PDT            5.84             86         0      Not Applicable
  03/20/2026 09 PM PDT            5.84             86         0      Not Applicable
  03/20/2026 10 PM PDT            5.84             86         0      Not Applicable
  03/20/2026 11 PM PDT            5.84             86         0      Not Applicable
  03/21/2026 12 AM PDT            5.84             86         0      Not Applicable
  03/21/2026 01 AM PDT            5.84             86         0      Not Applicable
  03/21/2026 02 AM PDT            5.84             86         0      Not Applicable
  03/21/2026 03 AM PDT            5.83             84         -      Not Applicable
  03/21/2026 04 AM PDT            5.83             84         0      Not Applicable
  03/21/2026 05 AM PDT            5.84             86         +      Not Applicable
  03/21/2026 06 AM PDT            5.83             84         -      Not Applicable
  03/21/2026 07 AM PDT            5.83             84         0      Not Applicable
  03/21/2026 08 AM PDT            5.82             83         -      Not Applicable
  03/21/2026 09 AM PDT            5.81             82         -      Not Applicable
  03/21/2026 10 AM PDT            5.82             83         +      Not Applicable
  03/21/2026 11 AM PDT            5.81             82         -      Not Applicable
  03/21/2026 12 PM PDT            5.80             81         -      Not Applicable
  03/21/2026 01 PM PDT            5.80             81         0      Not Applicable
  03/21/2026 02 PM PDT            5.80             81         0      Not Applicable
  03/21/2026 03 PM PDT            5.81             82         +      Not Applicable
  03/21/2026 04 PM PDT            5.80             81         -      Not Applicable
  03/21/2026 05 PM PDT            5.81             82         +      Not Applicable
  03/21/2026 06 PM PDT            5.80             81         -      Not Applicable
  03/21/2026 07 PM PDT            5.81             82         +      Not Applicable
  03/21/2026 08 PM PDT            5.81             82         0      Not Applicable
  03/21/2026 09 PM PDT            5.80             81         -      Not Applicable
  03/21/2026 10 PM PDT            5.79             80         -      Not Applicable
  03/21/2026 11 PM PDT            5.79             80         0      Not Applicable
  03/22/2026 12 AM PDT            5.79             80         0      Not Applicable
  03/22/2026 01 AM PDT            5.80             81         +      Not Applicable
  03/22/2026 02 AM PDT            5.80             81         0      Not Applicable
  03/22/2026 03 AM PDT            5.79             80         -      Not Applicable
  03/22/2026 04 AM PDT            5.79             80         0      Not Applicable
  03/22/2026 05 AM PDT            5.79             80         0      Not Applicable
  03/22/2026 06 AM PDT            5.78             79         -      Not Applicable
  03/22/2026 07 AM PDT            5.78             79         0      Not Applicable
  03/22/2026 08 AM PDT            5.78             79         0      Not Applicable
  03/22/2026 09 AM PDT            5.77             77         -      Not Applicable
  03/22/2026 10 AM PDT            5.78             79         +      Not Applicable
  03/22/2026 11 AM PDT            5.76             76         -      Not Applicable
  03/22/2026 12 PM PDT            5.76             76         0      Not Applicable
  03/22/2026 01 PM PDT            5.75             75         -      Not Applicable
  03/22/2026 02 PM PDT            5.76             76         +      Not Applicable
  03/22/2026 03 PM PDT            5.76             76         0      Not Applicable
  03/22/2026 04 PM PDT            5.75             75         -      Not Applicable
  03/22/2026 05 PM PDT            5.76             76         +      Not Applicable
  03/22/2026 06 PM PDT            5.76             76         0      Not Applicable
  03/22/2026 07 PM PDT            5.75             75         -      Not Applicable
  03/22/2026 08 PM PDT            5.75             75         0      Not Applicable
  03/22/2026 09 PM PDT            5.75             75         0      Not Applicable
  03/22/2026 10 PM PDT            5.75             75         0      Not Applicable
  03/22/2026 11 PM PDT            5.75             75         0      Not Applicable
  03/23/2026 12 AM PDT            5.76             76         +      Not Applicable
  03/23/2026 01 AM PDT            5.75             75         -      Not Applicable
  03/23/2026 02 AM PDT            5.75             75         0      Not Applicable
  03/23/2026 03 AM PDT            5.75             75         0      Not Applicable
  03/23/2026 04 AM PDT            5.75             75         0      Not Applicable
  03/23/2026 05 AM PDT            5.75             75         0      Not Applicable
  03/23/2026 06 AM PDT            5.75             75         0      Not Applicable
  03/23/2026 07 AM PDT            5.75             75         0      Not Applicable
  03/23/2026 08 AM PDT            5.74             74         -      Not Applicable
  03/23/2026 09 AM PDT            5.73             73         -      Not Applicable
  03/23/2026 10 AM PDT            5.74             74         +      Not Applicable
  03/23/2026 11 AM PDT            5.74             74         0      Not Applicable
  03/23/2026 12 PM PDT            5.73             73         -      Not Applicable
  03/23/2026 01 PM PDT            5.74             74         +      Not Applicable
  03/23/2026 02 PM PDT            5.73             73         -      Not Applicable
  03/23/2026 03 PM PDT            5.73             73         0      Not Applicable
  03/23/2026 04 PM PDT            5.73             73         0      Not Applicable
  03/23/2026 05 PM PDT            5.72             72         -      Not Applicable
  03/23/2026 06 PM PDT            5.72             72         0      Not Applicable
  03/23/2026 07 PM PDT            5.72             72         0      Not Applicable
  03/23/2026 08 PM PDT            5.72             72         0      Not Applicable
  03/23/2026 09 PM PDT            5.72             72         0      Not Applicable
  03/23/2026 10 PM PDT            5.72             72         0      Not Applicable
  03/23/2026 11 PM PDT            5.71             71         -      Not Applicable
  03/24/2026 12 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 01 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 02 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 03 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 04 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 05 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 06 AM PDT            5.71             71         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/24/2026 07 AM PDT            5.71             71                Not Applicable
  03/24/2026 08 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 09 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 10 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 11 AM PDT            5.71             71         0      Not Applicable
  03/24/2026 12 PM PDT            5.70             70         -      Not Applicable
  03/24/2026 01 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 02 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 03 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 04 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 05 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 06 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 07 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 08 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 09 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 10 PM PDT            5.70             70         0      Not Applicable
  03/24/2026 11 PM PDT            5.70             70         0      Not Applicable
  03/25/2026 12 AM PDT            5.69             69         -      Not Applicable
  03/25/2026 01 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 02 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 03 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 04 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 05 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 06 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 07 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 08 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 09 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 10 AM PDT            5.69             69         0      Not Applicable
  03/25/2026 11 AM PDT            5.68             68         -      Not Applicable
  03/25/2026 12 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 01 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 02 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 03 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 04 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 05 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 06 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 07 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 08 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 09 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 10 PM PDT            5.68             68         0      Not Applicable
  03/25/2026 11 PM PDT            5.68             68         0      Not Applicable
  03/26/2026 12 AM PDT            5.67             67         -      Not Applicable
  03/26/2026 01 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 02 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 03 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 04 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 05 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 06 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 07 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 08 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 09 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 10 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 11 AM PDT            5.67             67         0      Not Applicable
  03/26/2026 12 PM PDT            5.67             67         0      Not Applicable
  03/26/2026 01 PM PDT            5.67             67         0      Not Applicable
  03/26/2026 02 PM PDT            5.66             66         -      Not Applicable
  03/26/2026 03 PM PDT            5.66             66         0      Not Applicable
  03/26/2026 04 PM PDT            5.66             66         0      Not Applicable
  03/26/2026 05 PM PDT            5.66             66         0      Not Applicable
  03/26/2026 06 PM PDT            5.66             66         0      Not Applicable
  03/26/2026 07 PM PDT            5.66             66         0      Not Applicable
  03/26/2026 08 PM PDT            5.66             66         0      Not Applicable
  03/26/2026 09 PM PDT            5.66             66         0      Not Applicable
  03/26/2026 10 PM PDT            5.66             66         0      Not Applicable
  03/26/2026 11 PM PDT            5.66             66         0      Not Applicable
  03/27/2026 12 AM PDT            5.66             66         0      Not Applicable
  03/27/2026 01 AM PDT            5.66             66         0      Not Applicable
  03/27/2026 02 AM PDT            5.65             65         -      Not Applicable
  03/27/2026 03 AM PDT            5.65             65         0      Not Applicable
  03/27/2026 04 AM PDT            5.65             65         0      Not Applicable
  03/27/2026 05 AM PDT            5.65             65         0      Not Applicable
  03/27/2026 06 AM PDT            5.65             65         0      Not Applicable
  03/27/2026 07 AM PDT            5.65             65         0      Not Applicable
  03/27/2026 08 AM PDT            5.65             65         0      Not Applicable
  03/27/2026 09 AM PDT            5.65             65         0      Not Applicable
  03/27/2026 10 AM PDT            5.65             65         0      Not Applicable
  03/27/2026 11 AM PDT            5.65             65         0      Not Applicable
  03/27/2026 12 PM PDT            5.65             65         0      Not Applicable
  03/27/2026 01 PM PDT            5.65             65         0      Not Applicable
  03/27/2026 02 PM PDT            5.64             64         -      Not Applicable
  03/27/2026 03 PM PDT            5.64             64         0      Not Applicable
  03/27/2026 04 PM PDT            5.64             64         0      Not Applicable
  03/27/2026 05 PM PDT            5.64             64         0      Not Applicable
  03/27/2026 06 PM PDT            5.64             64         0      Not Applicable
  03/27/2026 07 PM PDT            5.64             64         0      Not Applicable
  03/27/2026 08 PM PDT            5.64             64         0      Not Applicable
  03/27/2026 09 PM PDT            5.64             64         0      Not Applicable
  03/27/2026 10 PM PDT            5.64             64         0      Not Applicable
  03/27/2026 11 PM PDT            5.64             64         0      Not Applicable
  03/28/2026 12 AM PDT            5.64             64         0      Not Applicable
  03/28/2026 01 AM PDT            5.64             64         0      Not Applicable
  03/28/2026 02 AM PDT            5.64             64         0      Not Applicable
  03/28/2026 03 AM PDT            5.63             63         -      Not Applicable
  03/28/2026 04 AM PDT            5.63             63         0      Not Applicable
  03/28/2026 05 AM PDT            5.63             63         0      Not Applicable
  03/28/2026 06 AM PDT            5.63             63         0      Not Applicable
  03/28/2026 07 AM PDT            5.63             63         0      Not Applicable
  03/28/2026 08 AM PDT            5.63             63         0      Not Applicable
  03/28/2026 09 AM PDT            5.63             63         0      Not Applicable
  03/28/2026 10 AM PDT            5.63             63         0      Not Applicable
  03/28/2026 11 AM PDT            5.63             63         0      Not Applicable
  03/28/2026 12 PM PDT            5.63             63         0      Not Applicable
  03/28/2026 01 PM PDT            5.63             63         0      Not Applicable
  03/28/2026 02 PM PDT            5.63             63         0      Not Applicable
  03/28/2026 03 PM PDT            5.63             63         0      Not Applicable
  03/28/2026 04 PM PDT            5.62             62         -      Not Applicable
  03/28/2026 05 PM PDT            5.62             62         0      Not Applicable
  03/28/2026 06 PM PDT            5.62             62         0      Not Applicable
  03/28/2026 07 PM PDT            5.62             62         0      Not Applicable
  03/28/2026 08 PM PDT            5.62             62         0      Not Applicable
  03/28/2026 09 PM PDT            5.62             62         0      Not Applicable
  03/28/2026 10 PM PDT            5.62             62         0      Not Applicable
  03/28/2026 11 PM PDT            5.62             62         0      Not Applicable
  03/29/2026 12 AM PDT            5.62             62         0      Not Applicable
  03/29/2026 01 AM PDT            5.62             62         0      Not Applicable
  03/29/2026 02 AM PDT            5.62             62         0      Not Applicable
  03/29/2026 03 AM PDT            5.62             62         0      Not Applicable
  03/29/2026 04 AM PDT            5.62             62         0      Not Applicable
  03/29/2026 05 AM PDT            5.62             62         0      Not Applicable
#
# 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.