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 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jul 10 2025 at 7:42 AM PDTNext Issuance: Jul 11 2025 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:  07/10/2025 at 07:43 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/05/2025 at 10:00 AM PDT
# Maximum Observed Stage:                       4.76 Feet
# Maximum Observed Flow:                        12 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/10/2025 at 08:00 AM PDT
# Maximum Forecast Stage:                       4.73 Feet
# Maximum Forecast Flow:                        11 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/05/2025 07 AM PDT            4.76             12                Not Applicable
  07/05/2025 08 AM PDT            4.76             12         0      Not Applicable
  07/05/2025 09 AM PDT            4.76             12         0      Not Applicable
  07/05/2025 10 AM PDT            4.76             12         0      Not Applicable
  07/05/2025 11 AM PDT            4.74             12         -      Not Applicable
  07/05/2025 12 PM PDT            4.74             12         0      Not Applicable
  07/05/2025 01 PM PDT            4.74             12         0      Not Applicable
  07/05/2025 02 PM PDT            4.73             11         -      Not Applicable
  07/05/2025 03 PM PDT            4.73             11         0      Not Applicable
  07/05/2025 04 PM PDT            4.74             12         +      Not Applicable
  07/05/2025 05 PM PDT            4.75             12         +      Not Applicable
  07/05/2025 06 PM PDT            4.75             12         0      Not Applicable
  07/05/2025 07 PM PDT            4.75             12         0      Not Applicable
  07/05/2025 08 PM PDT            4.75             12         0      Not Applicable
  07/05/2025 09 PM PDT            4.75             12         0      Not Applicable
  07/05/2025 10 PM PDT            4.75             12         0      Not Applicable
  07/05/2025 11 PM PDT            4.74             12         -      Not Applicable
  07/06/2025 12 AM PDT            4.73             11         -      Not Applicable
  07/06/2025 01 AM PDT            4.73             11         0      Not Applicable
  07/06/2025 02 AM PDT            4.73             11         0      Not Applicable
  07/06/2025 03 AM PDT            4.74             12         +      Not Applicable
  07/06/2025 04 AM PDT            4.74             12         0      Not Applicable
  07/06/2025 05 AM PDT            4.74             12         0      Not Applicable
  07/06/2025 06 AM PDT            4.75             12         +      Not Applicable
  07/06/2025 07 AM PDT            4.75             12         0      Not Applicable
  07/06/2025 08 AM PDT            4.74             12         -      Not Applicable
  07/06/2025 09 AM PDT            4.73             11         -      Not Applicable
  07/06/2025 10 AM PDT            4.74             12         +      Not Applicable
  07/06/2025 11 AM PDT            4.74             12         0      Not Applicable
  07/06/2025 12 PM PDT            4.75             12         +      Not Applicable
  07/06/2025 01 PM PDT            4.75             12         0      Not Applicable
  07/06/2025 02 PM PDT            4.75             12         0      Not Applicable
  07/06/2025 03 PM PDT            4.75             12         0      Not Applicable
  07/06/2025 04 PM PDT            4.74             12         -      Not Applicable
  07/06/2025 05 PM PDT            4.74             12         0      Not Applicable
  07/06/2025 06 PM PDT            4.74             12         0      Not Applicable
  07/06/2025 07 PM PDT            4.72             11         -      Not Applicable
  07/06/2025 08 PM PDT            4.72             11         0      Not Applicable
  07/06/2025 09 PM PDT            4.73             11         +      Not Applicable
  07/06/2025 10 PM PDT            4.73             11         0      Not Applicable
  07/06/2025 11 PM PDT            4.74             12         +      Not Applicable
  07/07/2025 12 AM PDT            4.74             12         0      Not Applicable
  07/07/2025 01 AM PDT            4.74             12         0      Not Applicable
  07/07/2025 02 AM PDT            4.74             12         0      Not Applicable
  07/07/2025 03 AM PDT            4.74             12         0      Not Applicable
  07/07/2025 04 AM PDT            4.74             12         0      Not Applicable
  07/07/2025 05 AM PDT            4.74             12         0      Not Applicable
  07/07/2025 06 AM PDT            4.74             12         0      Not Applicable
  07/07/2025 07 AM PDT            4.74             12         0      Not Applicable
  07/07/2025 08 AM PDT            4.74             12         0      Not Applicable
  07/07/2025 09 AM PDT            4.73             11         -      Not Applicable
  07/07/2025 10 AM PDT            4.73             11         0      Not Applicable
  07/07/2025 11 AM PDT            4.72             11         -      Not Applicable
  07/07/2025 12 PM PDT            4.73             11         +      Not Applicable
  07/07/2025 01 PM PDT            4.72             11         -      Not Applicable
  07/07/2025 02 PM PDT            4.72             11         0      Not Applicable
  07/07/2025 03 PM PDT            4.72             11         0      Not Applicable
  07/07/2025 04 PM PDT            4.73             11         +      Not Applicable
  07/07/2025 05 PM PDT            4.74             12         +      Not Applicable
  07/07/2025 06 PM PDT            4.74             12         0      Not Applicable
  07/07/2025 07 PM PDT            4.74             12         0      Not Applicable
  07/07/2025 08 PM PDT            4.74             12         0      Not Applicable
  07/07/2025 09 PM PDT            4.74             12         0      Not Applicable
  07/07/2025 10 PM PDT            4.74             12         0      Not Applicable
  07/07/2025 11 PM PDT            4.74             12         0      Not Applicable
  07/08/2025 12 AM PDT            4.74             12         0      Not Applicable
  07/08/2025 01 AM PDT            4.74             12         0      Not Applicable
  07/08/2025 02 AM PDT            4.74             12         0      Not Applicable
  07/08/2025 03 AM PDT            4.74             12         0      Not Applicable
  07/08/2025 04 AM PDT            4.74             12         0      Not Applicable
  07/08/2025 05 AM PDT            4.73             11         -      Not Applicable
  07/08/2025 06 AM PDT            4.72             11         -      Not Applicable
  07/08/2025 07 AM PDT            4.71             11         -      Not Applicable
  07/08/2025 08 AM PDT            4.71             11         0      Not Applicable
  07/08/2025 09 AM PDT            4.73             11         +      Not Applicable
  07/08/2025 10 AM PDT            4.73             11         0      Not Applicable
  07/08/2025 11 AM PDT            4.74             12         +      Not Applicable
  07/08/2025 12 PM PDT            4.74             12         0      Not Applicable
  07/08/2025 01 PM PDT            4.74             12         0      Not Applicable
  07/08/2025 02 PM PDT            4.74             12         0      Not Applicable
  07/08/2025 03 PM PDT            4.74             12         0      Not Applicable
  07/08/2025 04 PM PDT            4.74             12         0      Not Applicable
  07/08/2025 05 PM PDT            4.72             11         -      Not Applicable
  07/08/2025 06 PM PDT            4.71             11         -      Not Applicable
  07/08/2025 07 PM PDT            4.71             11         0      Not Applicable
  07/08/2025 08 PM PDT            4.72             11         +      Not Applicable
  07/08/2025 09 PM PDT            4.72             11         0      Not Applicable
  07/08/2025 10 PM PDT            4.73             11         +      Not Applicable
  07/08/2025 11 PM PDT            4.73             11         0      Not Applicable
  07/09/2025 12 AM PDT            4.73             11         0      Not Applicable
  07/09/2025 01 AM PDT            4.73             11         0      Not Applicable
  07/09/2025 02 AM PDT            4.73             11         0      Not Applicable
  07/09/2025 03 AM PDT            4.73             11         0      Not Applicable
  07/09/2025 04 AM PDT            4.73             11         0      Not Applicable
  07/09/2025 05 AM PDT            4.73             11         0      Not Applicable
  07/09/2025 06 AM PDT            4.73             11         0      Not Applicable
  07/09/2025 07 AM PDT            4.73             11         0      Not Applicable
  07/09/2025 08 AM PDT            4.73             11         0      Not Applicable
  07/09/2025 09 AM PDT            4.72             11         -      Not Applicable
  07/09/2025 10 AM PDT            4.71             11         -      Not Applicable
  07/09/2025 11 AM PDT            4.71             11         0      Not Applicable
  07/09/2025 12 PM PDT            4.71             11         0      Not Applicable
  07/09/2025 01 PM PDT            4.71             11         0      Not Applicable
  07/09/2025 02 PM PDT            4.71             11         0      Not Applicable
  07/09/2025 03 PM PDT            4.71             11         0      Not Applicable
  07/09/2025 04 PM PDT            4.70             10         -      Not Applicable
  07/09/2025 05 PM PDT            4.70             10         0      Not Applicable
  07/09/2025 06 PM PDT            4.70             10         0      Not Applicable
  07/09/2025 07 PM PDT            4.71             11         +      Not Applicable
  07/09/2025 08 PM PDT            4.72             11         +      Not Applicable
  07/09/2025 09 PM PDT            4.72             11         0      Not Applicable
  07/09/2025 10 PM PDT            4.72             11         0      Not Applicable
  07/09/2025 11 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 12 AM PDT            4.72             11         0      Not Applicable
  07/10/2025 01 AM PDT            4.72             11         0      Not Applicable
  07/10/2025 02 AM PDT            4.72             11         0      Not Applicable
  07/10/2025 03 AM PDT            4.72             11         0      Not Applicable
  07/10/2025 04 AM PDT            4.72             11         0      Not Applicable
  07/10/2025 05 AM PDT            4.73             11         +      Not Applicable
  07/10/2025 06 AM PDT            4.73             11         0      Not Applicable
  07/10/2025 07 AM PDT            4.73             11         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/10/2025 08 AM PDT            4.73             11                Not Applicable
  07/10/2025 09 AM PDT            4.73             11         0      Not Applicable
  07/10/2025 10 AM PDT            4.73             11         0      Not Applicable
  07/10/2025 11 AM PDT            4.73             11         0      Not Applicable
  07/10/2025 12 PM PDT            4.72             11         -      Not Applicable
  07/10/2025 01 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 02 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 03 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 04 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 05 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 06 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 07 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 08 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 09 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 10 PM PDT            4.72             11         0      Not Applicable
  07/10/2025 11 PM PDT            4.72             11         0      Not Applicable
  07/11/2025 12 AM PDT            4.71             11         -      Not Applicable
  07/11/2025 01 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 02 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 03 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 04 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 05 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 06 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 07 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 08 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 09 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 10 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 11 AM PDT            4.71             11         0      Not Applicable
  07/11/2025 12 PM PDT            4.71             11         0      Not Applicable
  07/11/2025 01 PM PDT            4.71             11         0      Not Applicable
  07/11/2025 02 PM PDT            4.71             11         0      Not Applicable
  07/11/2025 03 PM PDT            4.71             11         0      Not Applicable
  07/11/2025 04 PM PDT            4.70             10         -      Not Applicable
  07/11/2025 05 PM PDT            4.70             10         0      Not Applicable
  07/11/2025 06 PM PDT            4.70             10         0      Not Applicable
  07/11/2025 07 PM PDT            4.70             10         0      Not Applicable
  07/11/2025 08 PM PDT            4.70             10         0      Not Applicable
  07/11/2025 09 PM PDT            4.70             10         0      Not Applicable
  07/11/2025 10 PM PDT            4.70             10         0      Not Applicable
  07/11/2025 11 PM PDT            4.70             10         0      Not Applicable
  07/12/2025 12 AM PDT            4.70             10         0      Not Applicable
  07/12/2025 01 AM PDT            4.70             10         0      Not Applicable
  07/12/2025 02 AM PDT            4.70             10         0      Not Applicable
  07/12/2025 03 AM PDT            4.69             10         -      Not Applicable
  07/12/2025 04 AM PDT            4.69             10         0      Not Applicable
  07/12/2025 05 AM PDT            4.69             10         0      Not Applicable
  07/12/2025 06 AM PDT            4.69             10         0      Not Applicable
  07/12/2025 07 AM PDT            4.69             10         0      Not Applicable
  07/12/2025 08 AM PDT            4.69             10         0      Not Applicable
  07/12/2025 09 AM PDT            4.69             10         0      Not Applicable
  07/12/2025 10 AM PDT            4.69             10         0      Not Applicable
  07/12/2025 11 AM PDT            4.69             10         0      Not Applicable
  07/12/2025 12 PM PDT            4.69             10         0      Not Applicable
  07/12/2025 01 PM PDT            4.69             10         0      Not Applicable
  07/12/2025 02 PM PDT            4.69             10         0      Not Applicable
  07/12/2025 03 PM PDT            4.69             10         0      Not Applicable
  07/12/2025 04 PM PDT            4.69             10         0      Not Applicable
  07/12/2025 05 PM PDT            4.68             10         -      Not Applicable
  07/12/2025 06 PM PDT            4.68             10         0      Not Applicable
  07/12/2025 07 PM PDT            4.68             10         0      Not Applicable
  07/12/2025 08 PM PDT            4.68             10         0      Not Applicable
  07/12/2025 09 PM PDT            4.68             10         0      Not Applicable
  07/12/2025 10 PM PDT            4.68             10         0      Not Applicable
  07/12/2025 11 PM PDT            4.68             10         0      Not Applicable
  07/13/2025 12 AM PDT            4.68             10         0      Not Applicable
  07/13/2025 01 AM PDT            4.68             10         0      Not Applicable
  07/13/2025 02 AM PDT            4.68             10         0      Not Applicable
  07/13/2025 03 AM PDT            4.68             10         0      Not Applicable
  07/13/2025 04 AM PDT            4.68             10         0      Not Applicable
  07/13/2025 05 AM PDT            4.67              9         -      Not Applicable
  07/13/2025 06 AM PDT            4.67              9         0      Not Applicable
  07/13/2025 07 AM PDT            4.67              9         0      Not Applicable
  07/13/2025 08 AM PDT            4.67              9         0      Not Applicable
  07/13/2025 09 AM PDT            4.67              9         0      Not Applicable
  07/13/2025 10 AM PDT            4.67              9         0      Not Applicable
  07/13/2025 11 AM PDT            4.67              9         0      Not Applicable
  07/13/2025 12 PM PDT            4.67              9         0      Not Applicable
  07/13/2025 01 PM PDT            4.67              9         0      Not Applicable
  07/13/2025 02 PM PDT            4.67              9         0      Not Applicable
  07/13/2025 03 PM PDT            4.67              9         0      Not Applicable
  07/13/2025 04 PM PDT            4.67              9         0      Not Applicable
  07/13/2025 05 PM PDT            4.67              9         0      Not Applicable
  07/13/2025 06 PM PDT            4.67              9         0      Not Applicable
  07/13/2025 07 PM PDT            4.66              9         -      Not Applicable
  07/13/2025 08 PM PDT            4.66              9         0      Not Applicable
  07/13/2025 09 PM PDT            4.66              9         0      Not Applicable
  07/13/2025 10 PM PDT            4.66              9         0      Not Applicable
  07/13/2025 11 PM PDT            4.66              9         0      Not Applicable
  07/14/2025 12 AM PDT            4.66              9         0      Not Applicable
  07/14/2025 01 AM PDT            4.66              9         0      Not Applicable
  07/14/2025 02 AM PDT            4.66              9         0      Not Applicable
  07/14/2025 03 AM PDT            4.66              9         0      Not Applicable
  07/14/2025 04 AM PDT            4.66              9         0      Not Applicable
  07/14/2025 05 AM PDT            4.66              9         0      Not Applicable
  07/14/2025 06 AM PDT            4.66              9         0      Not Applicable
  07/14/2025 07 AM PDT            4.66              9         0      Not Applicable
  07/14/2025 08 AM PDT            4.66              9         0      Not Applicable
  07/14/2025 09 AM PDT            4.65              9         -      Not Applicable
  07/14/2025 10 AM PDT            4.65              9         0      Not Applicable
  07/14/2025 11 AM PDT            4.65              9         0      Not Applicable
  07/14/2025 12 PM PDT            4.65              9         0      Not Applicable
  07/14/2025 01 PM PDT            4.65              9         0      Not Applicable
  07/14/2025 02 PM PDT            4.65              9         0      Not Applicable
  07/14/2025 03 PM PDT            4.65              9         0      Not Applicable
  07/14/2025 04 PM PDT            4.65              9         0      Not Applicable
  07/14/2025 05 PM PDT            4.65              9         0      Not Applicable
  07/14/2025 06 PM PDT            4.65              9         0      Not Applicable
  07/14/2025 07 PM PDT            4.64              8         -      Not Applicable
  07/14/2025 08 PM PDT            4.64              8         0      Not Applicable
  07/14/2025 09 PM PDT            4.64              8         0      Not Applicable
  07/14/2025 10 PM PDT            4.64              8         0      Not Applicable
  07/14/2025 11 PM PDT            4.64              8         0      Not Applicable
  07/15/2025 12 AM PDT            4.64              8         0      Not Applicable
  07/15/2025 01 AM PDT            4.64              8         0      Not Applicable
  07/15/2025 02 AM PDT            4.64              8         0      Not Applicable
  07/15/2025 03 AM PDT            4.64              8         0      Not Applicable
  07/15/2025 04 AM PDT            4.64              8         0      Not Applicable
  07/15/2025 05 AM PDT            4.64              8         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.