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: Jun 28 2026 at 7:12 AM PDTNext Issuance: Jun 29 2026 at 9:00 AM 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:  06/28/2026 at 07:13 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/24/2026 at 06:00 AM PDT
# Maximum Observed Stage:                       4.73 Feet
# Maximum Observed Flow:                        14 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/28/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       4.68 Feet
# Maximum Forecast Flow:                        11 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/23/2026 07 AM PDT            4.73             14                Not Applicable
  06/23/2026 08 AM PDT            4.73             14         0      Not Applicable
  06/23/2026 09 AM PDT            4.72             13         -      Not Applicable
  06/23/2026 10 AM PDT            4.71             13         -      Not Applicable
  06/23/2026 11 AM PDT            4.71             13         0      Not Applicable
  06/23/2026 12 PM PDT            4.71             13         0      Not Applicable
  06/23/2026 01 PM PDT            4.71             13         0      Not Applicable
  06/23/2026 02 PM PDT            4.73             14         +      Not Applicable
  06/23/2026 03 PM PDT            4.72             13         -      Not Applicable
  06/23/2026 04 PM PDT            4.71             13         -      Not Applicable
  06/23/2026 05 PM PDT            4.70             12         -      Not Applicable
  06/23/2026 06 PM PDT            4.70             12         0      Not Applicable
  06/23/2026 07 PM PDT            4.71             13         +      Not Applicable
  06/23/2026 08 PM PDT            4.72             13         +      Not Applicable
  06/23/2026 09 PM PDT            4.70             12         -      Not Applicable
  06/23/2026 10 PM PDT            4.70             12         0      Not Applicable
  06/23/2026 11 PM PDT            4.69             12         -      Not Applicable
  06/24/2026 12 AM PDT            4.70             12         +      Not Applicable
  06/24/2026 01 AM PDT            4.71             13         +      Not Applicable
  06/24/2026 02 AM PDT            4.71             13         0      Not Applicable
  06/24/2026 03 AM PDT            4.70             12         -      Not Applicable
  06/24/2026 04 AM PDT            4.70             12         0      Not Applicable
  06/24/2026 05 AM PDT            4.72             13         +      Not Applicable
  06/24/2026 06 AM PDT            4.73             14         +      Not Applicable
  06/24/2026 07 AM PDT            4.71             13         -      Not Applicable
  06/24/2026 08 AM PDT            4.70             12         -      Not Applicable
  06/24/2026 09 AM PDT            4.70             12         0      Not Applicable
  06/24/2026 10 AM PDT            4.70             12         0      Not Applicable
  06/24/2026 11 AM PDT            4.70             12         0      Not Applicable
  06/24/2026 12 PM PDT            4.70             12         0      Not Applicable
  06/24/2026 01 PM PDT            4.69             12         -      Not Applicable
  06/24/2026 02 PM PDT            4.69             12         0      Not Applicable
  06/24/2026 03 PM PDT            4.69             12         0      Not Applicable
  06/24/2026 04 PM PDT            4.71             13         +      Not Applicable
  06/24/2026 05 PM PDT            4.71             13         0      Not Applicable
  06/24/2026 06 PM PDT            4.70             12         -      Not Applicable
  06/24/2026 07 PM PDT            4.69             12         -      Not Applicable
  06/24/2026 08 PM PDT            4.69             12         0      Not Applicable
  06/24/2026 09 PM PDT            4.70             12         +      Not Applicable
  06/24/2026 10 PM PDT            4.71             13         +      Not Applicable
  06/24/2026 11 PM PDT            4.70             12         -      Not Applicable
  06/25/2026 12 AM PDT            4.69             12         -      Not Applicable
  06/25/2026 01 AM PDT            4.69             12         0      Not Applicable
  06/25/2026 02 AM PDT            4.70             12         +      Not Applicable
  06/25/2026 03 AM PDT            4.71             13         +      Not Applicable
  06/25/2026 04 AM PDT            4.70             12         -      Not Applicable
  06/25/2026 05 AM PDT            4.70             12         0      Not Applicable
  06/25/2026 06 AM PDT            4.71             13         +      Not Applicable
  06/25/2026 07 AM PDT            4.72             13         +      Not Applicable
  06/25/2026 08 AM PDT            4.72             13         0      Not Applicable
  06/25/2026 09 AM PDT            4.71             13         -      Not Applicable
  06/25/2026 10 AM PDT            4.70             12         -      Not Applicable
  06/25/2026 11 AM PDT            4.69             12         -      Not Applicable
  06/25/2026 12 PM PDT            4.69             12         0      Not Applicable
  06/25/2026 01 PM PDT            4.70             12         +      Not Applicable
  06/25/2026 02 PM PDT            4.71             13         +      Not Applicable
  06/25/2026 03 PM PDT            4.70             12         -      Not Applicable
  06/25/2026 04 PM PDT            4.69             12         -      Not Applicable
  06/25/2026 05 PM PDT            4.68             11         -      Not Applicable
  06/25/2026 06 PM PDT            4.68             11         0      Not Applicable
  06/25/2026 07 PM PDT            4.70             12         +      Not Applicable
  06/25/2026 08 PM PDT            4.70             12         0      Not Applicable
  06/25/2026 09 PM PDT            4.69             12         -      Not Applicable
  06/25/2026 10 PM PDT            4.68             11         -      Not Applicable
  06/25/2026 11 PM PDT            4.68             11         0      Not Applicable
  06/26/2026 12 AM PDT            4.69             12         +      Not Applicable
  06/26/2026 01 AM PDT            4.70             12         +      Not Applicable
  06/26/2026 02 AM PDT            4.69             12         -      Not Applicable
  06/26/2026 03 AM PDT            4.68             11         -      Not Applicable
  06/26/2026 04 AM PDT            4.68             11         0      Not Applicable
  06/26/2026 05 AM PDT            4.70             12         +      Not Applicable
  06/26/2026 06 AM PDT            4.71             13         +      Not Applicable
  06/26/2026 07 AM PDT            4.71             13         0      Not Applicable
  06/26/2026 08 AM PDT            4.70             12         -      Not Applicable
  06/26/2026 09 AM PDT            4.69             12         -      Not Applicable
  06/26/2026 10 AM PDT            4.69             12         0      Not Applicable
  06/26/2026 11 AM PDT            4.68             11         -      Not Applicable
  06/26/2026 12 PM PDT            4.68             11         0      Not Applicable
  06/26/2026 01 PM PDT            4.68             11         0      Not Applicable
  06/26/2026 02 PM PDT            4.68             11         0      Not Applicable
  06/26/2026 03 PM PDT            4.68             11         0      Not Applicable
  06/26/2026 04 PM PDT            4.68             11         0      Not Applicable
  06/26/2026 05 PM PDT            4.67             11         -      Not Applicable
  06/26/2026 06 PM PDT            4.69             12         +      Not Applicable
  06/26/2026 07 PM PDT            4.70             12         +      Not Applicable
  06/26/2026 08 PM PDT            4.68             11         -      Not Applicable
  06/26/2026 09 PM PDT            4.67             11         -      Not Applicable
  06/26/2026 10 PM PDT            4.67             11         0      Not Applicable
  06/26/2026 11 PM PDT            4.68             11         +      Not Applicable
  06/27/2026 12 AM PDT            4.69             12         +      Not Applicable
  06/27/2026 01 AM PDT            4.69             12         0      Not Applicable
  06/27/2026 02 AM PDT            4.68             11         -      Not Applicable
  06/27/2026 03 AM PDT            4.67             11         -      Not Applicable
  06/27/2026 04 AM PDT            4.68             11         +      Not Applicable
  06/27/2026 05 AM PDT            4.70             12         +      Not Applicable
  06/27/2026 06 AM PDT            4.71             13         +      Not Applicable
  06/27/2026 07 AM PDT            4.71             13         0      Not Applicable
  06/27/2026 08 AM PDT            4.69             12         -      Not Applicable
  06/27/2026 09 AM PDT            4.68             11         -      Not Applicable
  06/27/2026 10 AM PDT            4.68             11         0      Not Applicable
  06/27/2026 11 AM PDT            4.68             11         0      Not Applicable
  06/27/2026 12 PM PDT            4.68             11         0      Not Applicable
  06/27/2026 01 PM PDT            4.70             12         +      Not Applicable
  06/27/2026 02 PM PDT            4.69             12         -      Not Applicable
  06/27/2026 03 PM PDT            4.67             11         -      Not Applicable
  06/27/2026 04 PM PDT            4.67             11         0      Not Applicable
  06/27/2026 05 PM PDT            4.67             11         0      Not Applicable
  06/27/2026 06 PM PDT            4.67             11         0      Not Applicable
  06/27/2026 07 PM PDT            4.68             11         +      Not Applicable
  06/27/2026 08 PM PDT            4.68             11         0      Not Applicable
  06/27/2026 09 PM PDT            4.67             11         -      Not Applicable
  06/27/2026 10 PM PDT            4.66             11         -      Not Applicable
  06/27/2026 11 PM PDT            4.66             11         0      Not Applicable
  06/28/2026 12 AM PDT            4.67             11         +      Not Applicable
  06/28/2026 01 AM PDT            4.68             11         +      Not Applicable
  06/28/2026 02 AM PDT            4.67             11         -      Not Applicable
  06/28/2026 03 AM PDT            4.66             11         -      Not Applicable
  06/28/2026 04 AM PDT            4.67             11         +      Not Applicable
  06/28/2026 05 AM PDT            4.68             11         +      Not Applicable
  06/28/2026 06 AM PDT            4.68             11         0      Not Applicable
  06/28/2026 07 AM PDT            4.68             11         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/28/2026 08 AM PDT            4.68             11                Not Applicable
  06/28/2026 09 AM PDT            4.68             11         0      Not Applicable
  06/28/2026 10 AM PDT            4.68             11         0      Not Applicable
  06/28/2026 11 AM PDT            4.68             11         0      Not Applicable
  06/28/2026 12 PM PDT            4.68             11         0      Not Applicable
  06/28/2026 01 PM PDT            4.68             11         0      Not Applicable
  06/28/2026 02 PM PDT            4.68             11         0      Not Applicable
  06/28/2026 03 PM PDT            4.68             11         0      Not Applicable
  06/28/2026 04 PM PDT            4.68             11         0      Not Applicable
  06/28/2026 05 PM PDT            4.67             11         -      Not Applicable
  06/28/2026 06 PM PDT            4.67             11         0      Not Applicable
  06/28/2026 07 PM PDT            4.67             11         0      Not Applicable
  06/28/2026 08 PM PDT            4.67             11         0      Not Applicable
  06/28/2026 09 PM PDT            4.67             11         0      Not Applicable
  06/28/2026 10 PM PDT            4.67             11         0      Not Applicable
  06/28/2026 11 PM PDT            4.67             11         0      Not Applicable
  06/29/2026 12 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 01 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 02 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 03 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 04 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 05 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 06 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 07 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 08 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 09 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 10 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 11 AM PDT            4.67             11         0      Not Applicable
  06/29/2026 12 PM PDT            4.67             11         0      Not Applicable
  06/29/2026 01 PM PDT            4.67             11         0      Not Applicable
  06/29/2026 02 PM PDT            4.67             11         0      Not Applicable
  06/29/2026 03 PM PDT            4.67             11         0      Not Applicable
  06/29/2026 04 PM PDT            4.66             11         -      Not Applicable
  06/29/2026 05 PM PDT            4.66             11         0      Not Applicable
  06/29/2026 06 PM PDT            4.66             11         0      Not Applicable
  06/29/2026 07 PM PDT            4.66             11         0      Not Applicable
  06/29/2026 08 PM PDT            4.66             11         0      Not Applicable
  06/29/2026 09 PM PDT            4.66             11         0      Not Applicable
  06/29/2026 10 PM PDT            4.66             11         0      Not Applicable
  06/29/2026 11 PM PDT            4.66             11         0      Not Applicable
  06/30/2026 12 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 01 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 02 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 03 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 04 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 05 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 06 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 07 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 08 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 09 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 10 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 11 AM PDT            4.66             11         0      Not Applicable
  06/30/2026 12 PM PDT            4.66             11         0      Not Applicable
  06/30/2026 01 PM PDT            4.66             11         0      Not Applicable
  06/30/2026 02 PM PDT            4.65             10         -      Not Applicable
  06/30/2026 03 PM PDT            4.65             10         0      Not Applicable
  06/30/2026 04 PM PDT            4.65             10         0      Not Applicable
  06/30/2026 05 PM PDT            4.65             10         0      Not Applicable
  06/30/2026 06 PM PDT            4.65             10         0      Not Applicable
  06/30/2026 07 PM PDT            4.65             10         0      Not Applicable
  06/30/2026 08 PM PDT            4.65             10         0      Not Applicable
  06/30/2026 09 PM PDT            4.65             10         0      Not Applicable
  06/30/2026 10 PM PDT            4.65             10         0      Not Applicable
  06/30/2026 11 PM PDT            4.65             10         0      Not Applicable
  07/01/2026 12 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 01 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 02 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 03 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 04 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 05 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 06 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 07 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 08 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 09 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 10 AM PDT            4.65             10         0      Not Applicable
  07/01/2026 11 AM PDT            4.64             10         -      Not Applicable
  07/01/2026 12 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 01 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 02 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 03 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 04 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 05 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 06 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 07 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 08 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 09 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 10 PM PDT            4.64             10         0      Not Applicable
  07/01/2026 11 PM PDT            4.64             10         0      Not Applicable
  07/02/2026 12 AM PDT            4.64             10         0      Not Applicable
  07/02/2026 01 AM PDT            4.64             10         0      Not Applicable
  07/02/2026 02 AM PDT            4.64             10         0      Not Applicable
  07/02/2026 03 AM PDT            4.64             10         0      Not Applicable
  07/02/2026 04 AM PDT            4.64             10         0      Not Applicable
  07/02/2026 05 AM PDT            4.64             10         0      Not Applicable
  07/02/2026 06 AM PDT            4.64             10         0      Not Applicable
  07/02/2026 07 AM PDT            4.63              9         -      Not Applicable
  07/02/2026 08 AM PDT            4.63              9         0      Not Applicable
  07/02/2026 09 AM PDT            4.63              9         0      Not Applicable
  07/02/2026 10 AM PDT            4.63              9         0      Not Applicable
  07/02/2026 11 AM PDT            4.63              9         0      Not Applicable
  07/02/2026 12 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 01 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 02 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 03 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 04 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 05 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 06 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 07 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 08 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 09 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 10 PM PDT            4.63              9         0      Not Applicable
  07/02/2026 11 PM PDT            4.63              9         0      Not Applicable
  07/03/2026 12 AM PDT            4.63              9         0      Not Applicable
  07/03/2026 01 AM PDT            4.63              9         0      Not Applicable
  07/03/2026 02 AM PDT            4.63              9         0      Not Applicable
  07/03/2026 03 AM PDT            4.62              9         -      Not Applicable
  07/03/2026 04 AM PDT            4.62              9         0      Not Applicable
  07/03/2026 05 AM PDT            4.62              9         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.