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: Jan 07 2026 at 2:19 PM PSTNext Issuance: Jan 08 2026 at 9:00 AM PST
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:  01/07/2026 at 02:21 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/05/2026 at 07:00 PM PST
# Maximum Observed Stage:                       25.66 Feet
# Maximum Observed Flow:                        14114 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/07/2026 at 03:00 PM PST
# Maximum Forecast Stage:                       11.03 Feet
# Maximum Forecast Flow:                        2243 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/02/2026 02 PM PST           10.84           2145                Not Applicable
  01/02/2026 03 PM PST           10.76           2104         -      Not Applicable
  01/02/2026 04 PM PST           10.70           2074         -      Not Applicable
  01/02/2026 05 PM PST           10.62           2033         -      Not Applicable
  01/02/2026 06 PM PST           10.51           1978         -      Not Applicable
  01/02/2026 07 PM PST           10.50           1973         -      Not Applicable
  01/02/2026 08 PM PST           10.64           2043         +      Not Applicable
  01/02/2026 09 PM PST           11.06           2259         +      Not Applicable
  01/02/2026 10 PM PST           11.84           2681         +      Not Applicable
  01/02/2026 11 PM PST           13.24           3507         +      Not Applicable
  01/03/2026 12 AM PST           14.90           4594         +      Not Applicable
  01/03/2026 01 AM PST           16.18           5508         +      Not Applicable
  01/03/2026 02 AM PST           16.96           6096         +      Not Applicable
  01/03/2026 03 AM PST           17.21           6290         +      Not Applicable
  01/03/2026 04 AM PST           17.11           6212         -      Not Applicable
  01/03/2026 05 AM PST           16.65           5860         -      Not Applicable
  01/03/2026 06 AM PST           16.06           5420         -      Not Applicable
  01/03/2026 07 AM PST           15.45           4979         -      Not Applicable
  01/03/2026 08 AM PST           14.92           4608         -      Not Applicable
  01/03/2026 09 AM PST           14.44           4281         -      Not Applicable
  01/03/2026 10 AM PST           14.01           3997         -      Not Applicable
  01/03/2026 11 AM PST           13.62           3745         -      Not Applicable
  01/03/2026 12 PM PST           13.32           3556         -      Not Applicable
  01/03/2026 01 PM PST           12.99           3353         -      Not Applicable
  01/03/2026 02 PM PST           12.75           3208         -      Not Applicable
  01/03/2026 03 PM PST           12.48           3048         -      Not Applicable
  01/03/2026 04 PM PST           12.26           2919         -      Not Applicable
  01/03/2026 05 PM PST           12.04           2793         -      Not Applicable
  01/03/2026 06 PM PST           11.85           2686         -      Not Applicable
  01/03/2026 07 PM PST           11.71           2608         -      Not Applicable
  01/03/2026 08 PM PST           11.52           2504         -      Not Applicable
  01/03/2026 09 PM PST           11.35           2412         -      Not Applicable
  01/03/2026 10 PM PST           11.26           2364         -      Not Applicable
  01/03/2026 11 PM PST           11.16           2311         -      Not Applicable
  01/04/2026 12 AM PST           11.00           2227         -      Not Applicable
  01/04/2026 01 AM PST           10.91           2181         -      Not Applicable
  01/04/2026 02 AM PST           10.87           2160         -      Not Applicable
  01/04/2026 03 AM PST           10.81           2129         -      Not Applicable
  01/04/2026 04 AM PST           10.88           2165         +      Not Applicable
  01/04/2026 05 AM PST           11.08           2269         +      Not Applicable
  01/04/2026 06 AM PST           11.49           2488         +      Not Applicable
  01/04/2026 07 AM PST           12.21           2891         +      Not Applicable
  01/04/2026 08 AM PST           12.81           3244         +      Not Applicable
  01/04/2026 09 AM PST           13.16           3457         +      Not Applicable
  01/04/2026 10 AM PST           13.29           3538         +      Not Applicable
  01/04/2026 11 AM PST           13.27           3525         -      Not Applicable
  01/04/2026 12 PM PST           13.26           3519         -      Not Applicable
  01/04/2026 01 PM PST           13.18           3469         -      Not Applicable
  01/04/2026 02 PM PST           13.00           3359         -      Not Applicable
  01/04/2026 03 PM PST           12.74           3202         -      Not Applicable
  01/04/2026 04 PM PST           12.49           3053         -      Not Applicable
  01/04/2026 05 PM PST           12.30           2943         -      Not Applicable
  01/04/2026 06 PM PST           12.15           2856         -      Not Applicable
  01/04/2026 07 PM PST           12.00           2771         -      Not Applicable
  01/04/2026 08 PM PST           11.86           2692         -      Not Applicable
  01/04/2026 09 PM PST           11.72           2614         -      Not Applicable
  01/04/2026 10 PM PST           11.58           2537         -      Not Applicable
  01/04/2026 11 PM PST           11.44           2461         -      Not Applicable
  01/05/2026 12 AM PST           11.30           2386         -      Not Applicable
  01/05/2026 01 AM PST           11.21           2338         -      Not Applicable
  01/05/2026 02 AM PST           11.13           2295         -      Not Applicable
  01/05/2026 03 AM PST           11.14           2301         +      Not Applicable
  01/05/2026 04 AM PST           11.16           2311         +      Not Applicable
  01/05/2026 05 AM PST           11.33           2402         +      Not Applicable
  01/05/2026 06 AM PST           11.64           2570         +      Not Applicable
  01/05/2026 07 AM PST           12.16           2862         +      Not Applicable
  01/05/2026 08 AM PST           12.87           3280         +      Not Applicable
  01/05/2026 09 AM PST           14.10           4056         +      Not Applicable
  01/05/2026 10 AM PST           15.34           4901         +      Not Applicable
  01/05/2026 11 AM PST           16.38           5657         +      Not Applicable
  01/05/2026 12 PM PST           17.43           6462         +      Not Applicable
  01/05/2026 01 PM PST           18.51           7333         +      Not Applicable
  01/05/2026 02 PM PST           19.57           8228         +      Not Applicable
  01/05/2026 03 PM PST           20.89           9399         +      Not Applicable
  01/05/2026 04 PM PST           22.78          11178         +      Not Applicable
  01/05/2026 05 PM PST           24.28          12674         +      Not Applicable
  01/05/2026 06 PM PST           25.38          13817         +      Not Applicable
  01/05/2026 07 PM PST           25.66          14114         +      Not Applicable
  01/05/2026 08 PM PST           25.38          13817         -      Not Applicable
  01/05/2026 09 PM PST           24.68          13086         -      Not Applicable
  01/05/2026 10 PM PST           23.88          12268         -      Not Applicable
  01/05/2026 11 PM PST           23.12          11511         -      Not Applicable
  01/06/2026 12 AM PST           22.46          10869         -      Not Applicable
  01/06/2026 01 AM PST           21.95          10382         -      Not Applicable
  01/06/2026 02 AM PST           21.53           9988         -      Not Applicable
  01/06/2026 03 AM PST           21.19           9673         -      Not Applicable
  01/06/2026 04 AM PST           20.73           9254         -      Not Applicable
  01/06/2026 05 AM PST           20.11           8700         -      Not Applicable
  01/06/2026 06 AM PST           19.39           8073         -      Not Applicable
  01/06/2026 07 AM PST           18.74           7524         -      Not Applicable
  01/06/2026 08 AM PST           18.17           7054         -      Not Applicable
  01/06/2026 09 AM PST           17.63           6620         -      Not Applicable
  01/06/2026 10 AM PST           17.14           6235         -      Not Applicable
  01/06/2026 11 AM PST           16.73           5920         -      Not Applicable
  01/06/2026 12 PM PST           16.31           5604         -      Not Applicable
  01/06/2026 01 PM PST           15.93           5324         -      Not Applicable
  01/06/2026 02 PM PST           15.56           5057         -      Not Applicable
  01/06/2026 03 PM PST           15.24           4830         -      Not Applicable
  01/06/2026 04 PM PST           14.97           4642         -      Not Applicable
  01/06/2026 05 PM PST           14.65           4423         -      Not Applicable
  01/06/2026 06 PM PST           14.38           4241         -      Not Applicable
  01/06/2026 07 PM PST           14.13           4075         -      Not Applicable
  01/06/2026 08 PM PST           13.86           3899         -      Not Applicable
  01/06/2026 09 PM PST           13.63           3752         -      Not Applicable
  01/06/2026 10 PM PST           13.43           3625         -      Not Applicable
  01/06/2026 11 PM PST           13.20           3482         -      Not Applicable
  01/07/2026 12 AM PST           13.05           3390         -      Not Applicable
  01/07/2026 01 AM PST           12.85           3268         -      Not Applicable
  01/07/2026 02 AM PST           12.66           3154         -      Not Applicable
  01/07/2026 03 AM PST           12.50           3059         -      Not Applicable
  01/07/2026 04 AM PST           12.34           2966         -      Not Applicable
  01/07/2026 05 AM PST           12.22           2896         -      Not Applicable
  01/07/2026 06 AM PST           12.04           2793         -      Not Applicable
  01/07/2026 07 AM PST           11.91           2720         -      Not Applicable
  01/07/2026 08 AM PST           11.78           2647         -      Not Applicable
  01/07/2026 09 AM PST           11.63           2564         -      Not Applicable
  01/07/2026 10 AM PST           11.52           2504         -      Not Applicable
  01/07/2026 11 AM PST           11.42           2450         -      Not Applicable
  01/07/2026 12 PM PST           11.32           2396         -      Not Applicable
  01/07/2026 01 PM PST           11.23           2348         -      Not Applicable
  01/07/2026 02 PM PST           11.13           2295         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/07/2026 03 PM PST           11.03           2243                Not Applicable
  01/07/2026 04 PM PST           10.94           2196         -      Not Applicable
  01/07/2026 05 PM PST           10.85           2150         -      Not Applicable
  01/07/2026 06 PM PST           10.76           2104         -      Not Applicable
  01/07/2026 07 PM PST           10.68           2063         -      Not Applicable
  01/07/2026 08 PM PST           10.59           2018         -      Not Applicable
  01/07/2026 09 PM PST           10.51           1978         -      Not Applicable
  01/07/2026 10 PM PST           10.42           1934         -      Not Applicable
  01/07/2026 11 PM PST           10.34           1895         -      Not Applicable
  01/08/2026 12 AM PST           10.26           1856         -      Not Applicable
  01/08/2026 01 AM PST           10.20           1827         -      Not Applicable
  01/08/2026 02 AM PST           10.13           1793         -      Not Applicable
  01/08/2026 03 AM PST           10.07           1764         -      Not Applicable
  01/08/2026 04 AM PST           10.00           1731         -      Not Applicable
  01/08/2026 05 AM PST            9.93           1698         -      Not Applicable
  01/08/2026 06 AM PST            9.86           1666         -      Not Applicable
  01/08/2026 07 AM PST            9.79           1633         -      Not Applicable
  01/08/2026 08 AM PST            9.72           1601         -      Not Applicable
  01/08/2026 09 AM PST            9.65           1569         -      Not Applicable
  01/08/2026 10 AM PST            9.59           1542         -      Not Applicable
  01/08/2026 11 AM PST            9.52           1511         -      Not Applicable
  01/08/2026 12 PM PST            9.46           1484         -      Not Applicable
  01/08/2026 01 PM PST            9.39           1453         -      Not Applicable
  01/08/2026 02 PM PST            9.33           1427         -      Not Applicable
  01/08/2026 03 PM PST            9.27           1400         -      Not Applicable
  01/08/2026 04 PM PST            9.21           1375         -      Not Applicable
  01/08/2026 05 PM PST            9.15           1349         -      Not Applicable
  01/08/2026 06 PM PST            9.09           1323         -      Not Applicable
  01/08/2026 07 PM PST            9.04           1302         -      Not Applicable
  01/08/2026 08 PM PST            8.98           1277         -      Not Applicable
  01/08/2026 09 PM PST            8.93           1255         -      Not Applicable
  01/08/2026 10 PM PST            8.88           1232         -      Not Applicable
  01/08/2026 11 PM PST            8.84           1213         -      Not Applicable
  01/09/2026 12 AM PST            8.79           1190         -      Not Applicable
  01/09/2026 01 AM PST            8.75           1171         -      Not Applicable
  01/09/2026 02 AM PST            8.71           1153         -      Not Applicable
  01/09/2026 03 AM PST            8.67           1135         -      Not Applicable
  01/09/2026 04 AM PST            8.63           1117         -      Not Applicable
  01/09/2026 05 AM PST            8.59           1099         -      Not Applicable
  01/09/2026 06 AM PST            8.54           1076         -      Not Applicable
  01/09/2026 07 AM PST            8.50           1059         -      Not Applicable
  01/09/2026 08 AM PST            8.47           1045         -      Not Applicable
  01/09/2026 09 AM PST            8.43           1023         -      Not Applicable
  01/09/2026 10 AM PST            8.40           1007         -      Not Applicable
  01/09/2026 11 AM PST            8.37            991         -      Not Applicable
  01/09/2026 12 PM PST            8.34            975         -      Not Applicable
  01/09/2026 01 PM PST            8.30            955         -      Not Applicable
  01/09/2026 02 PM PST            8.27            939         -      Not Applicable
  01/09/2026 03 PM PST            8.24            924         -      Not Applicable
  01/09/2026 04 PM PST            8.21            909         -      Not Applicable
  01/09/2026 05 PM PST            8.18            894         -      Not Applicable
  01/09/2026 06 PM PST            8.15            876         -      Not Applicable
  01/09/2026 07 PM PST            8.12            859         -      Not Applicable
  01/09/2026 08 PM PST            8.10            847         -      Not Applicable
  01/09/2026 09 PM PST            8.07            830         -      Not Applicable
  01/09/2026 10 PM PST            8.04            813         -      Not Applicable
  01/09/2026 11 PM PST            8.01            797         -      Not Applicable
  01/10/2026 12 AM PST            8.00            791         -      Not Applicable
  01/10/2026 01 AM PST            7.99            786         -      Not Applicable
  01/10/2026 02 AM PST            7.98            780         -      Not Applicable
  01/10/2026 03 AM PST            7.96            769         -      Not Applicable
  01/10/2026 04 AM PST            7.95            764         -      Not Applicable
  01/10/2026 05 AM PST            7.94            759         -      Not Applicable
  01/10/2026 06 AM PST            7.93            753         -      Not Applicable
  01/10/2026 07 AM PST            7.92            748         -      Not Applicable
  01/10/2026 08 AM PST            7.90            738         -      Not Applicable
  01/10/2026 09 AM PST            7.89            732         -      Not Applicable
  01/10/2026 10 AM PST            7.88            727         -      Not Applicable
  01/10/2026 11 AM PST            7.87            722         -      Not Applicable
  01/10/2026 12 PM PST            7.86            717         -      Not Applicable
  01/10/2026 01 PM PST            7.85            712         -      Not Applicable
  01/10/2026 02 PM PST            7.84            707         -      Not Applicable
  01/10/2026 03 PM PST            7.83            701         -      Not Applicable
  01/10/2026 04 PM PST            7.82            696         -      Not Applicable
  01/10/2026 05 PM PST            7.80            686         -      Not Applicable
  01/10/2026 06 PM PST            7.79            681         -      Not Applicable
  01/10/2026 07 PM PST            7.79            681         0      Not Applicable
  01/10/2026 08 PM PST            7.78            676         -      Not Applicable
  01/10/2026 09 PM PST            7.76            667         -      Not Applicable
  01/10/2026 10 PM PST            7.75            662         -      Not Applicable
  01/10/2026 11 PM PST            7.75            662         0      Not Applicable
  01/11/2026 12 AM PST            7.74            657         -      Not Applicable
  01/11/2026 01 AM PST            7.73            652         -      Not Applicable
  01/11/2026 02 AM PST            7.72            647         -      Not Applicable
  01/11/2026 03 AM PST            7.71            642         -      Not Applicable
  01/11/2026 04 AM PST            7.70            638         -      Not Applicable
  01/11/2026 05 AM PST            7.69            633         -      Not Applicable
  01/11/2026 06 AM PST            7.68            628         -      Not Applicable
  01/11/2026 07 AM PST            7.67            623         -      Not Applicable
  01/11/2026 08 AM PST            7.66            619         -      Not Applicable
  01/11/2026 09 AM PST            7.65            614         -      Not Applicable
  01/11/2026 10 AM PST            7.64            609         -      Not Applicable
  01/11/2026 11 AM PST            7.63            605         -      Not Applicable
  01/11/2026 12 PM PST            7.63            605         0      Not Applicable
  01/11/2026 01 PM PST            7.62            600         -      Not Applicable
  01/11/2026 02 PM PST            7.61            595         -      Not Applicable
  01/11/2026 03 PM PST            7.60            591         -      Not Applicable
  01/11/2026 04 PM PST            7.59            586         -      Not Applicable
  01/11/2026 05 PM PST            7.58            582         -      Not Applicable
  01/11/2026 06 PM PST            7.58            582         0      Not Applicable
  01/11/2026 07 PM PST            7.57            577         -      Not Applicable
  01/11/2026 08 PM PST            7.56            573         -      Not Applicable
  01/11/2026 09 PM PST            7.55            569         -      Not Applicable
  01/11/2026 10 PM PST            7.54            564         -      Not Applicable
  01/11/2026 11 PM PST            7.53            560         -      Not Applicable
  01/12/2026 12 AM PST            7.53            560         0      Not Applicable
  01/12/2026 01 AM PST            7.52            555         -      Not Applicable
  01/12/2026 02 AM PST            7.51            551         -      Not Applicable
  01/12/2026 03 AM PST            7.50            547         -      Not Applicable
  01/12/2026 04 AM PST            7.50            547         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.