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 12 2026 at 7:18 AM PDTNext Issuance: Jun 13 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:  06/12/2026 at 07:19 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/09/2026 at 04:00 AM PDT
# Maximum Observed Stage:                       4.89 Feet
# Maximum Observed Flow:                        22 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/12/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       4.81 Feet
# Maximum Forecast Flow:                        17 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/07/2026 07 AM PDT            4.83             18                Not Applicable
  06/07/2026 08 AM PDT            4.83             18         0      Not Applicable
  06/07/2026 09 AM PDT            4.82             18         -      Not Applicable
  06/07/2026 10 AM PDT            4.82             18         0      Not Applicable
  06/07/2026 11 AM PDT            4.82             18         0      Not Applicable
  06/07/2026 12 PM PDT            4.82             18         0      Not Applicable
  06/07/2026 01 PM PDT            4.82             18         0      Not Applicable
  06/07/2026 02 PM PDT            4.81             17         -      Not Applicable
  06/07/2026 03 PM PDT            4.80             17         -      Not Applicable
  06/07/2026 04 PM PDT            4.80             17         0      Not Applicable
  06/07/2026 05 PM PDT            4.80             17         0      Not Applicable
  06/07/2026 06 PM PDT            4.80             17         0      Not Applicable
  06/07/2026 07 PM PDT            4.81             17         +      Not Applicable
  06/07/2026 08 PM PDT            4.81             17         0      Not Applicable
  06/07/2026 09 PM PDT            4.81             17         0      Not Applicable
  06/07/2026 10 PM PDT            4.82             18         +      Not Applicable
  06/07/2026 11 PM PDT            4.82             18         0      Not Applicable
  06/08/2026 12 AM PDT            4.82             18         0      Not Applicable
  06/08/2026 01 AM PDT            4.82             18         0      Not Applicable
  06/08/2026 02 AM PDT            4.82             18         0      Not Applicable
  06/08/2026 03 AM PDT            4.82             18         0      Not Applicable
  06/08/2026 04 AM PDT            4.82             18         0      Not Applicable
  06/08/2026 05 AM PDT            4.81             17         -      Not Applicable
  06/08/2026 06 AM PDT            4.81             17         0      Not Applicable
  06/08/2026 07 AM PDT            4.81             17         0      Not Applicable
  06/08/2026 08 AM PDT            4.81             17         0      Not Applicable
  06/08/2026 09 AM PDT            4.80             17         -      Not Applicable
  06/08/2026 10 AM PDT            4.80             17         0      Not Applicable
  06/08/2026 11 AM PDT            4.80             17         0      Not Applicable
  06/08/2026 12 PM PDT            4.80             17         0      Not Applicable
  06/08/2026 01 PM PDT            4.81             17         +      Not Applicable
  06/08/2026 02 PM PDT            4.81             17         0      Not Applicable
  06/08/2026 03 PM PDT            4.81             17         0      Not Applicable
  06/08/2026 04 PM PDT            4.81             17         0      Not Applicable
  06/08/2026 05 PM PDT            4.81             17         0      Not Applicable
  06/08/2026 06 PM PDT            4.81             17         0      Not Applicable
  06/08/2026 07 PM PDT            4.81             17         0      Not Applicable
  06/08/2026 08 PM PDT            4.82             18         +      Not Applicable
  06/08/2026 09 PM PDT            4.83             18         +      Not Applicable
  06/08/2026 10 PM PDT            4.84             19         +      Not Applicable
  06/08/2026 11 PM PDT            4.86             20         +      Not Applicable
  06/09/2026 12 AM PDT            4.87             21         +      Not Applicable
  06/09/2026 01 AM PDT            4.88             21         +      Not Applicable
  06/09/2026 02 AM PDT            4.88             21         0      Not Applicable
  06/09/2026 03 AM PDT            4.89             22         +      Not Applicable
  06/09/2026 04 AM PDT            4.89             22         0      Not Applicable
  06/09/2026 05 AM PDT            4.88             21         -      Not Applicable
  06/09/2026 06 AM PDT            4.88             21         0      Not Applicable
  06/09/2026 07 AM PDT            4.87             21         -      Not Applicable
  06/09/2026 08 AM PDT            4.87             21         0      Not Applicable
  06/09/2026 09 AM PDT            4.87             21         0      Not Applicable
  06/09/2026 10 AM PDT            4.88             21         +      Not Applicable
  06/09/2026 11 AM PDT            4.88             21         0      Not Applicable
  06/09/2026 12 PM PDT            4.88             21         0      Not Applicable
  06/09/2026 01 PM PDT            4.87             21         -      Not Applicable
  06/09/2026 02 PM PDT            4.86             20         -      Not Applicable
  06/09/2026 03 PM PDT            4.86             20         0      Not Applicable
  06/09/2026 04 PM PDT            4.86             20         0      Not Applicable
  06/09/2026 05 PM PDT            4.87             21         +      Not Applicable
  06/09/2026 06 PM PDT            4.87             21         0      Not Applicable
  06/09/2026 07 PM PDT            4.88             21         +      Not Applicable
  06/09/2026 08 PM PDT            4.88             21         0      Not Applicable
  06/09/2026 09 PM PDT            4.88             21         0      Not Applicable
  06/09/2026 10 PM PDT            4.88             21         0      Not Applicable
  06/09/2026 11 PM PDT            4.88             21         0      Not Applicable
  06/10/2026 12 AM PDT            4.88             21         0      Not Applicable
  06/10/2026 01 AM PDT            4.87             21         -      Not Applicable
  06/10/2026 02 AM PDT            4.87             21         0      Not Applicable
  06/10/2026 03 AM PDT            4.87             21         0      Not Applicable
  06/10/2026 04 AM PDT            4.87             21         0      Not Applicable
  06/10/2026 05 AM PDT            4.87             21         0      Not Applicable
  06/10/2026 06 AM PDT            4.87             21         0      Not Applicable
  06/10/2026 07 AM PDT            4.87             21         0      Not Applicable
  06/10/2026 08 AM PDT            4.86             20         -      Not Applicable
  06/10/2026 09 AM PDT            4.86             20         0      Not Applicable
  06/10/2026 10 AM PDT            4.86             20         0      Not Applicable
  06/10/2026 11 AM PDT            4.86             20         0      Not Applicable
  06/10/2026 12 PM PDT            4.86             20         0      Not Applicable
  06/10/2026 01 PM PDT            4.86             20         0      Not Applicable
  06/10/2026 02 PM PDT            4.86             20         0      Not Applicable
  06/10/2026 03 PM PDT            4.86             20         0      Not Applicable
  06/10/2026 04 PM PDT            4.86             20         0      Not Applicable
  06/10/2026 05 PM PDT            4.86             20         0      Not Applicable
  06/10/2026 06 PM PDT            4.86             20         0      Not Applicable
  06/10/2026 07 PM PDT            4.86             20         0      Not Applicable
  06/10/2026 08 PM PDT            4.87             21         +      Not Applicable
  06/10/2026 09 PM PDT            4.87             21         0      Not Applicable
  06/10/2026 10 PM PDT            4.87             21         0      Not Applicable
  06/10/2026 11 PM PDT            4.87             21         0      Not Applicable
  06/11/2026 12 AM PDT            4.87             21         0      Not Applicable
  06/11/2026 01 AM PDT            4.87             21         0      Not Applicable
  06/11/2026 02 AM PDT            4.86             20         -      Not Applicable
  06/11/2026 03 AM PDT            4.86             20         0      Not Applicable
  06/11/2026 04 AM PDT            4.86             20         0      Not Applicable
  06/11/2026 05 AM PDT            4.85             20         -      Not Applicable
  06/11/2026 06 AM PDT            4.84             19         -      Not Applicable
  06/11/2026 07 AM PDT            4.84             19         0      Not Applicable
  06/11/2026 08 AM PDT            4.84             19         0      Not Applicable
  06/11/2026 09 AM PDT            4.84             19         0      Not Applicable
  06/11/2026 10 AM PDT            4.84             19         0      Not Applicable
  06/11/2026 11 AM PDT            4.83             18         -      Not Applicable
  06/11/2026 12 PM PDT            4.84             19         +      Not Applicable
  06/11/2026 01 PM PDT            4.84             19         0      Not Applicable
  06/11/2026 02 PM PDT            4.84             19         0      Not Applicable
  06/11/2026 03 PM PDT            4.84             19         0      Not Applicable
  06/11/2026 04 PM PDT            4.83             18         -      Not Applicable
  06/11/2026 05 PM PDT            4.83             18         0      Not Applicable
  06/11/2026 06 PM PDT            4.83             18         0      Not Applicable
  06/11/2026 07 PM PDT            4.83             18         0      Not Applicable
  06/11/2026 08 PM PDT            4.83             18         0      Not Applicable
  06/11/2026 09 PM PDT            4.83             18         0      Not Applicable
  06/11/2026 10 PM PDT            4.83             18         0      Not Applicable
  06/11/2026 11 PM PDT            4.83             18         0      Not Applicable
  06/12/2026 12 AM PDT            4.83             18         0      Not Applicable
  06/12/2026 01 AM PDT            4.83             18         0      Not Applicable
  06/12/2026 02 AM PDT            4.82             18         -      Not Applicable
  06/12/2026 03 AM PDT            4.81             17         -      Not Applicable
  06/12/2026 04 AM PDT            4.81             17         0      Not Applicable
  06/12/2026 05 AM PDT            4.81             17         0      Not Applicable
  06/12/2026 06 AM PDT            4.81             17         0      Not Applicable
  06/12/2026 07 AM PDT            4.81             17         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/12/2026 08 AM PDT            4.81             17                Not Applicable
  06/12/2026 09 AM PDT            4.81             17         0      Not Applicable
  06/12/2026 10 AM PDT            4.81             17         0      Not Applicable
  06/12/2026 11 AM PDT            4.81             17         0      Not Applicable
  06/12/2026 12 PM PDT            4.81             17         0      Not Applicable
  06/12/2026 01 PM PDT            4.81             17         0      Not Applicable
  06/12/2026 02 PM PDT            4.81             17         0      Not Applicable
  06/12/2026 03 PM PDT            4.81             17         0      Not Applicable
  06/12/2026 04 PM PDT            4.81             17         0      Not Applicable
  06/12/2026 05 PM PDT            4.80             17         -      Not Applicable
  06/12/2026 06 PM PDT            4.80             17         0      Not Applicable
  06/12/2026 07 PM PDT            4.80             17         0      Not Applicable
  06/12/2026 08 PM PDT            4.80             17         0      Not Applicable
  06/12/2026 09 PM PDT            4.80             17         0      Not Applicable
  06/12/2026 10 PM PDT            4.80             17         0      Not Applicable
  06/12/2026 11 PM PDT            4.80             17         0      Not Applicable
  06/13/2026 12 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 01 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 02 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 03 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 04 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 05 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 06 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 07 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 08 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 09 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 10 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 11 AM PDT            4.80             17         0      Not Applicable
  06/13/2026 12 PM PDT            4.80             17         0      Not Applicable
  06/13/2026 01 PM PDT            4.80             17         0      Not Applicable
  06/13/2026 02 PM PDT            4.80             17         0      Not Applicable
  06/13/2026 03 PM PDT            4.80             17         0      Not Applicable
  06/13/2026 04 PM PDT            4.80             17         0      Not Applicable
  06/13/2026 05 PM PDT            4.80             17         0      Not Applicable
  06/13/2026 06 PM PDT            4.80             17         0      Not Applicable
  06/13/2026 07 PM PDT            4.79             16         -      Not Applicable
  06/13/2026 08 PM PDT            4.79             16         0      Not Applicable
  06/13/2026 09 PM PDT            4.79             16         0      Not Applicable
  06/13/2026 10 PM PDT            4.79             16         0      Not Applicable
  06/13/2026 11 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 12 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 01 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 02 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 03 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 04 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 05 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 06 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 07 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 08 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 09 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 10 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 11 AM PDT            4.79             16         0      Not Applicable
  06/14/2026 12 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 01 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 02 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 03 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 04 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 05 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 06 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 07 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 08 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 09 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 10 PM PDT            4.79             16         0      Not Applicable
  06/14/2026 11 PM PDT            4.78             16         -      Not Applicable
  06/15/2026 12 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 01 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 02 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 03 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 04 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 05 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 06 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 07 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 08 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 09 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 10 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 11 AM PDT            4.78             16         0      Not Applicable
  06/15/2026 12 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 01 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 02 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 03 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 04 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 05 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 06 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 07 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 08 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 09 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 10 PM PDT            4.78             16         0      Not Applicable
  06/15/2026 11 PM PDT            4.78             16         0      Not Applicable
  06/16/2026 12 AM PDT            4.78             16         0      Not Applicable
  06/16/2026 01 AM PDT            4.78             16         0      Not Applicable
  06/16/2026 02 AM PDT            4.78             16         0      Not Applicable
  06/16/2026 03 AM PDT            4.78             16         0      Not Applicable
  06/16/2026 04 AM PDT            4.78             16         0      Not Applicable
  06/16/2026 05 AM PDT            4.77             15         -      Not Applicable
  06/16/2026 06 AM PDT            4.77             15         0      Not Applicable
  06/16/2026 07 AM PDT            4.77             15         0      Not Applicable
  06/16/2026 08 AM PDT            4.77             15         0      Not Applicable
  06/16/2026 09 AM PDT            4.77             15         0      Not Applicable
  06/16/2026 10 AM PDT            4.77             15         0      Not Applicable
  06/16/2026 11 AM PDT            4.77             15         0      Not Applicable
  06/16/2026 12 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 01 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 02 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 03 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 04 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 05 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 06 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 07 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 08 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 09 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 10 PM PDT            4.77             15         0      Not Applicable
  06/16/2026 11 PM PDT            4.77             15         0      Not Applicable
  06/17/2026 12 AM PDT            4.77             15         0      Not Applicable
  06/17/2026 01 AM PDT            4.77             15         0      Not Applicable
  06/17/2026 02 AM PDT            4.77             15         0      Not Applicable
  06/17/2026 03 AM PDT            4.77             15         0      Not Applicable
  06/17/2026 04 AM PDT            4.76             15         -      Not Applicable
  06/17/2026 05 AM PDT            4.76             15         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.