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SOUTH FORK GUALALA RIVER - SEA RANCH (GSRC1)
| Latitude: 38.71º N | Longitude: 123.43º W | Elevation: 40 Feet | | Forecast Type: Unofficial Location |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Jul 30 2026 at 6:23 AM PDT | Next Issuance: | Jul 31 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: 07/30/2026 at 06:24 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/27/2026 at 11:00 AM PDT
# Maximum Observed Stage: 4.52 Feet
# Maximum Observed Flow: 6 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/30/2026 at 07:00 AM PDT
# Maximum Forecast Stage: 4.49 Feet
# Maximum Forecast Flow: 5 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/25/2026 06 AM PDT 4.51 5 Not Applicable
07/25/2026 07 AM PDT 4.51 5 0 Not Applicable
07/25/2026 08 AM PDT 4.51 5 0 Not Applicable
07/25/2026 09 AM PDT 4.51 5 0 Not Applicable
07/25/2026 10 AM PDT 4.51 5 0 Not Applicable
07/25/2026 11 AM PDT 4.51 5 0 Not Applicable
07/25/2026 12 PM PDT 4.51 5 0 Not Applicable
07/25/2026 01 PM PDT 4.51 5 0 Not Applicable
07/25/2026 02 PM PDT 4.51 5 0 Not Applicable
07/25/2026 03 PM PDT 4.51 5 0 Not Applicable
07/25/2026 04 PM PDT 4.51 5 0 Not Applicable
07/25/2026 05 PM PDT 4.51 5 0 Not Applicable
07/25/2026 06 PM PDT 4.51 5 0 Not Applicable
07/25/2026 07 PM PDT 4.51 5 0 Not Applicable
07/25/2026 08 PM PDT 4.51 5 0 Not Applicable
07/25/2026 09 PM PDT 4.51 5 0 Not Applicable
07/25/2026 10 PM PDT 4.51 5 0 Not Applicable
07/25/2026 11 PM PDT 4.51 5 0 Not Applicable
07/26/2026 12 AM PDT 4.51 5 0 Not Applicable
07/26/2026 01 AM PDT 4.51 5 0 Not Applicable
07/26/2026 02 AM PDT 4.51 5 0 Not Applicable
07/26/2026 03 AM PDT 4.51 5 0 Not Applicable
07/26/2026 04 AM PDT 4.51 5 0 Not Applicable
07/26/2026 05 AM PDT 4.51 5 0 Not Applicable
07/26/2026 06 AM PDT 4.51 5 0 Not Applicable
07/26/2026 07 AM PDT 4.51 5 0 Not Applicable
07/26/2026 08 AM PDT 4.51 5 0 Not Applicable
07/26/2026 09 AM PDT 4.51 5 0 Not Applicable
07/26/2026 10 AM PDT 4.51 5 0 Not Applicable
07/26/2026 11 AM PDT 4.51 5 0 Not Applicable
07/26/2026 12 PM PDT 4.51 5 0 Not Applicable
07/26/2026 01 PM PDT 4.51 5 0 Not Applicable
07/26/2026 02 PM PDT 4.51 5 0 Not Applicable
07/26/2026 03 PM PDT 4.51 5 0 Not Applicable
07/26/2026 04 PM PDT 4.51 5 0 Not Applicable
07/26/2026 05 PM PDT 4.51 5 0 Not Applicable
07/26/2026 06 PM PDT 4.51 5 0 Not Applicable
07/26/2026 07 PM PDT 4.51 5 0 Not Applicable
07/26/2026 08 PM PDT 4.51 5 0 Not Applicable
07/26/2026 09 PM PDT 4.51 5 0 Not Applicable
07/26/2026 10 PM PDT 4.51 5 0 Not Applicable
07/26/2026 11 PM PDT 4.51 5 0 Not Applicable
07/27/2026 12 AM PDT 4.51 5 0 Not Applicable
07/27/2026 01 AM PDT 4.51 5 0 Not Applicable
07/27/2026 02 AM PDT 4.51 5 0 Not Applicable
07/27/2026 03 AM PDT 4.52 6 + Not Applicable
07/27/2026 04 AM PDT 4.51 5 - Not Applicable
07/27/2026 05 AM PDT 4.52 6 + Not Applicable
07/27/2026 06 AM PDT 4.52 6 0 Not Applicable
07/27/2026 07 AM PDT 4.52 6 0 Not Applicable
07/27/2026 08 AM PDT 4.52 6 0 Not Applicable
07/27/2026 09 AM PDT 4.52 6 0 Not Applicable
07/27/2026 10 AM PDT 4.52 6 0 Not Applicable
07/27/2026 11 AM PDT 4.52 6 0 Not Applicable
07/27/2026 12 PM PDT 4.51 5 - Not Applicable
07/27/2026 01 PM PDT 4.51 5 0 Not Applicable
07/27/2026 02 PM PDT 4.51 5 0 Not Applicable
07/27/2026 03 PM PDT 4.51 5 0 Not Applicable
07/27/2026 04 PM PDT 4.51 5 0 Not Applicable
07/27/2026 05 PM PDT 4.51 5 0 Not Applicable
07/27/2026 06 PM PDT 4.51 5 0 Not Applicable
07/27/2026 07 PM PDT 4.51 5 0 Not Applicable
07/27/2026 08 PM PDT 4.51 5 0 Not Applicable
07/27/2026 09 PM PDT 4.51 5 0 Not Applicable
07/27/2026 10 PM PDT 4.51 5 0 Not Applicable
07/27/2026 11 PM PDT 4.51 5 0 Not Applicable
07/28/2026 12 AM PDT 4.51 5 0 Not Applicable
07/28/2026 01 AM PDT 4.51 5 0 Not Applicable
07/28/2026 02 AM PDT 4.51 5 0 Not Applicable
07/28/2026 03 AM PDT 4.51 5 0 Not Applicable
07/28/2026 04 AM PDT 4.51 5 0 Not Applicable
07/28/2026 05 AM PDT 4.51 5 0 Not Applicable
07/28/2026 06 AM PDT 4.51 5 0 Not Applicable
07/28/2026 07 AM PDT 4.51 5 0 Not Applicable
07/28/2026 08 AM PDT 4.51 5 0 Not Applicable
07/28/2026 09 AM PDT 4.51 5 0 Not Applicable
07/28/2026 10 AM PDT 4.51 5 0 Not Applicable
07/28/2026 11 AM PDT 4.51 5 0 Not Applicable
07/28/2026 12 PM PDT 4.51 5 0 Not Applicable
07/28/2026 01 PM PDT 4.51 5 0 Not Applicable
07/28/2026 02 PM PDT 4.51 5 0 Not Applicable
07/28/2026 03 PM PDT 4.51 5 0 Not Applicable
07/28/2026 04 PM PDT 4.50 5 - Not Applicable
07/28/2026 05 PM PDT 4.50 5 0 Not Applicable
07/28/2026 06 PM PDT 4.50 5 0 Not Applicable
07/28/2026 07 PM PDT 4.51 5 + Not Applicable
07/28/2026 08 PM PDT 4.50 5 - Not Applicable
07/28/2026 09 PM PDT 4.50 5 0 Not Applicable
07/28/2026 10 PM PDT 4.50 5 0 Not Applicable
07/28/2026 11 PM PDT 4.50 5 0 Not Applicable
07/29/2026 12 AM PDT 4.50 5 0 Not Applicable
07/29/2026 01 AM PDT 4.50 5 0 Not Applicable
07/29/2026 02 AM PDT 4.50 5 0 Not Applicable
07/29/2026 03 AM PDT 4.50 5 0 Not Applicable
07/29/2026 04 AM PDT 4.50 5 0 Not Applicable
07/29/2026 05 AM PDT 4.50 5 0 Not Applicable
07/29/2026 06 AM PDT 4.50 5 0 Not Applicable
07/29/2026 07 AM PDT 4.50 5 0 Not Applicable
07/29/2026 08 AM PDT 4.50 5 0 Not Applicable
07/29/2026 09 AM PDT 4.50 5 0 Not Applicable
07/29/2026 10 AM PDT 4.50 5 0 Not Applicable
07/29/2026 11 AM PDT 4.50 5 0 Not Applicable
07/29/2026 12 PM PDT 4.50 5 0 Not Applicable
07/29/2026 01 PM PDT 4.50 5 0 Not Applicable
07/29/2026 02 PM PDT 4.50 5 0 Not Applicable
07/29/2026 03 PM PDT 4.50 5 0 Not Applicable
07/29/2026 04 PM PDT 4.50 5 0 Not Applicable
07/29/2026 05 PM PDT 4.50 5 0 Not Applicable
07/29/2026 06 PM PDT 4.50 5 0 Not Applicable
07/29/2026 07 PM PDT 4.50 5 0 Not Applicable
07/29/2026 08 PM PDT 4.50 5 0 Not Applicable
07/29/2026 09 PM PDT 4.50 5 0 Not Applicable
07/29/2026 10 PM PDT 4.50 5 0 Not Applicable
07/29/2026 11 PM PDT 4.50 5 0 Not Applicable
07/30/2026 12 AM PDT 4.50 5 0 Not Applicable
07/30/2026 01 AM PDT 4.50 5 0 Not Applicable
07/30/2026 02 AM PDT 4.50 5 0 Not Applicable
07/30/2026 03 AM PDT 4.50 5 0 Not Applicable
07/30/2026 04 AM PDT 4.49 5 - Not Applicable
07/30/2026 05 AM PDT 4.49 5 0 Not Applicable
07/30/2026 06 AM PDT 4.49 5 0 Not Applicable
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/30/2026 07 AM PDT 4.49 5 Not Applicable
07/30/2026 08 AM PDT 4.49 5 0 Not Applicable
07/30/2026 09 AM PDT 4.49 5 0 Not Applicable
07/30/2026 10 AM PDT 4.49 5 0 Not Applicable
07/30/2026 11 AM PDT 4.49 5 0 Not Applicable
07/30/2026 12 PM PDT 4.49 5 0 Not Applicable
07/30/2026 01 PM PDT 4.49 5 0 Not Applicable
07/30/2026 02 PM PDT 4.49 5 0 Not Applicable
07/30/2026 03 PM PDT 4.49 5 0 Not Applicable
07/30/2026 04 PM PDT 4.49 5 0 Not Applicable
07/30/2026 05 PM PDT 4.49 5 0 Not Applicable
07/30/2026 06 PM PDT 4.49 5 0 Not Applicable
07/30/2026 07 PM PDT 4.49 5 0 Not Applicable
07/30/2026 08 PM PDT 4.48 5 - Not Applicable
07/30/2026 09 PM PDT 4.48 5 0 Not Applicable
07/30/2026 10 PM PDT 4.48 5 0 Not Applicable
07/30/2026 11 PM PDT 4.48 5 0 Not Applicable
07/31/2026 12 AM PDT 4.48 5 0 Not Applicable
07/31/2026 01 AM PDT 4.48 5 0 Not Applicable
07/31/2026 02 AM PDT 4.48 5 0 Not Applicable
07/31/2026 03 AM PDT 4.48 5 0 Not Applicable
07/31/2026 04 AM PDT 4.48 5 0 Not Applicable
07/31/2026 05 AM PDT 4.48 5 0 Not Applicable
07/31/2026 06 AM PDT 4.48 5 0 Not Applicable
07/31/2026 07 AM PDT 4.48 5 0 Not Applicable
07/31/2026 08 AM PDT 4.48 5 0 Not Applicable
07/31/2026 09 AM PDT 4.48 5 0 Not Applicable
07/31/2026 10 AM PDT 4.48 5 0 Not Applicable
07/31/2026 11 AM PDT 4.48 5 0 Not Applicable
07/31/2026 12 PM PDT 4.48 5 0 Not Applicable
07/31/2026 01 PM PDT 4.48 5 0 Not Applicable
07/31/2026 02 PM PDT 4.48 5 0 Not Applicable
07/31/2026 03 PM PDT 4.48 5 0 Not Applicable
07/31/2026 04 PM PDT 4.48 5 0 Not Applicable
07/31/2026 05 PM PDT 4.48 5 0 Not Applicable
07/31/2026 06 PM PDT 4.48 5 0 Not Applicable
07/31/2026 07 PM PDT 4.48 5 0 Not Applicable
07/31/2026 08 PM PDT 4.47 4 - Not Applicable
07/31/2026 09 PM PDT 4.47 4 0 Not Applicable
07/31/2026 10 PM PDT 4.47 4 0 Not Applicable
07/31/2026 11 PM PDT 4.47 4 0 Not Applicable
08/01/2026 12 AM PDT 4.47 4 0 Not Applicable
08/01/2026 01 AM PDT 4.47 4 0 Not Applicable
08/01/2026 02 AM PDT 4.47 4 0 Not Applicable
08/01/2026 03 AM PDT 4.47 4 0 Not Applicable
08/01/2026 04 AM PDT 4.47 4 0 Not Applicable
08/01/2026 05 AM PDT 4.47 4 0 Not Applicable
08/01/2026 06 AM PDT 4.47 4 0 Not Applicable
08/01/2026 07 AM PDT 4.47 4 0 Not Applicable
08/01/2026 08 AM PDT 4.47 4 0 Not Applicable
08/01/2026 09 AM PDT 4.47 4 0 Not Applicable
08/01/2026 10 AM PDT 4.47 4 0 Not Applicable
08/01/2026 11 AM PDT 4.47 4 0 Not Applicable
08/01/2026 12 PM PDT 4.47 4 0 Not Applicable
08/01/2026 01 PM PDT 4.47 4 0 Not Applicable
08/01/2026 02 PM PDT 4.47 4 0 Not Applicable
08/01/2026 03 PM PDT 4.47 4 0 Not Applicable
08/01/2026 04 PM PDT 4.47 4 0 Not Applicable
08/01/2026 05 PM PDT 4.47 4 0 Not Applicable
08/01/2026 06 PM PDT 4.47 4 0 Not Applicable
08/01/2026 07 PM PDT 4.47 4 0 Not Applicable
08/01/2026 08 PM PDT 4.47 4 0 Not Applicable
08/01/2026 09 PM PDT 4.47 4 0 Not Applicable
08/01/2026 10 PM PDT 4.46 4 - Not Applicable
08/01/2026 11 PM PDT 4.46 4 0 Not Applicable
08/02/2026 12 AM PDT 4.46 4 0 Not Applicable
08/02/2026 01 AM PDT 4.46 4 0 Not Applicable
08/02/2026 02 AM PDT 4.46 4 0 Not Applicable
08/02/2026 03 AM PDT 4.46 4 0 Not Applicable
08/02/2026 04 AM PDT 4.46 4 0 Not Applicable
08/02/2026 05 AM PDT 4.46 4 0 Not Applicable
08/02/2026 06 AM PDT 4.46 4 0 Not Applicable
08/02/2026 07 AM PDT 4.46 4 0 Not Applicable
08/02/2026 08 AM PDT 4.46 4 0 Not Applicable
08/02/2026 09 AM PDT 4.46 4 0 Not Applicable
08/02/2026 10 AM PDT 4.46 4 0 Not Applicable
08/02/2026 11 AM PDT 4.46 4 0 Not Applicable
08/02/2026 12 PM PDT 4.46 4 0 Not Applicable
08/02/2026 01 PM PDT 4.46 4 0 Not Applicable
08/02/2026 02 PM PDT 4.46 4 0 Not Applicable
08/02/2026 03 PM PDT 4.46 4 0 Not Applicable
08/02/2026 04 PM PDT 4.46 4 0 Not Applicable
08/02/2026 05 PM PDT 4.46 4 0 Not Applicable
08/02/2026 06 PM PDT 4.46 4 0 Not Applicable
08/02/2026 07 PM PDT 4.46 4 0 Not Applicable
08/02/2026 08 PM PDT 4.46 4 0 Not Applicable
08/02/2026 09 PM PDT 4.46 4 0 Not Applicable
08/02/2026 10 PM PDT 4.46 4 0 Not Applicable
08/02/2026 11 PM PDT 4.46 4 0 Not Applicable
08/03/2026 12 AM PDT 4.46 4 0 Not Applicable
08/03/2026 01 AM PDT 4.46 4 0 Not Applicable
08/03/2026 02 AM PDT 4.46 4 0 Not Applicable
08/03/2026 03 AM PDT 4.45 4 - Not Applicable
08/03/2026 04 AM PDT 4.45 4 0 Not Applicable
08/03/2026 05 AM PDT 4.45 4 0 Not Applicable
08/03/2026 06 AM PDT 4.45 4 0 Not Applicable
08/03/2026 07 AM PDT 4.45 4 0 Not Applicable
08/03/2026 08 AM PDT 4.45 4 0 Not Applicable
08/03/2026 09 AM PDT 4.45 4 0 Not Applicable
08/03/2026 10 AM PDT 4.45 4 0 Not Applicable
08/03/2026 11 AM PDT 4.45 4 0 Not Applicable
08/03/2026 12 PM PDT 4.45 4 0 Not Applicable
08/03/2026 01 PM PDT 4.45 4 0 Not Applicable
08/03/2026 02 PM PDT 4.45 4 0 Not Applicable
08/03/2026 03 PM PDT 4.45 4 0 Not Applicable
08/03/2026 04 PM PDT 4.45 4 0 Not Applicable
08/03/2026 05 PM PDT 4.45 4 0 Not Applicable
08/03/2026 06 PM PDT 4.45 4 0 Not Applicable
08/03/2026 07 PM PDT 4.45 4 0 Not Applicable
08/03/2026 08 PM PDT 4.45 4 0 Not Applicable
08/03/2026 09 PM PDT 4.45 4 0 Not Applicable
08/03/2026 10 PM PDT 4.45 4 0 Not Applicable
08/03/2026 11 PM PDT 4.45 4 0 Not Applicable
08/04/2026 12 AM PDT 4.45 4 0 Not Applicable
08/04/2026 01 AM PDT 4.45 4 0 Not Applicable
08/04/2026 02 AM PDT 4.45 4 0 Not Applicable
08/04/2026 03 AM PDT 4.45 4 0 Not Applicable
08/04/2026 04 AM PDT 4.44 4 - Not Applicable
08/04/2026 05 AM PDT 4.44 4 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.
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