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SOUTH FORK GUALALA RIVER - SEA RANCH (GSRC1)
| Latitude: 38.71º N | Longitude: 123.43º W | Elevation: 40 Feet | | | |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Jan 09 2026 at 7:07 AM PST | Next Issuance: | Jan 09 2026 at 3:00 PM 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: 01/09/2026 at 07:09 AM 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: 01/09/2026 at 08:00 AM PST
# Maximum Forecast Stage: 8.67 Feet
# Maximum Forecast Flow: 1135 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
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 11.38 2428 - Not Applicable
01/07/2026 12 PM PST 11.31 2391 - Not Applicable
01/07/2026 01 PM PST 11.21 2338 - Not Applicable
01/07/2026 02 PM PST 11.07 2264 - Not Applicable
01/07/2026 03 PM PST 10.98 2217 - Not Applicable
01/07/2026 04 PM PST 10.90 2176 - Not Applicable
01/07/2026 05 PM PST 10.80 2124 - Not Applicable
01/07/2026 06 PM PST 10.69 2068 - Not Applicable
01/07/2026 07 PM PST 10.61 2028 - Not Applicable
01/07/2026 08 PM PST 10.51 1978 - Not Applicable
01/07/2026 09 PM PST 10.46 1953 - Not Applicable
01/07/2026 10 PM PST 10.40 1924 - Not Applicable
01/07/2026 11 PM PST 10.33 1890 - Not Applicable
01/08/2026 12 AM PST 10.24 1846 - Not Applicable
01/08/2026 01 AM PST 10.19 1822 - Not Applicable
01/08/2026 02 AM PST 10.11 1783 - Not Applicable
01/08/2026 03 AM PST 10.04 1750 - Not Applicable
01/08/2026 04 AM PST 9.96 1712 - Not Applicable
01/08/2026 05 AM PST 9.88 1675 - Not Applicable
01/08/2026 06 AM PST 9.81 1643 - Not Applicable
01/08/2026 07 AM PST 9.74 1610 - Not Applicable
01/08/2026 08 AM PST 9.72 1601 - Not Applicable
01/08/2026 09 AM PST 9.64 1565 - Not Applicable
01/08/2026 10 AM PST 9.58 1538 - Not Applicable
01/08/2026 11 AM PST 9.53 1515 - Not Applicable
01/08/2026 12 PM PST 9.49 1497 - Not Applicable
01/08/2026 01 PM PST 9.41 1462 - Not Applicable
01/08/2026 02 PM PST 9.36 1440 - Not Applicable
01/08/2026 03 PM PST 9.32 1422 - Not Applicable
01/08/2026 04 PM PST 9.29 1409 - Not Applicable
01/08/2026 05 PM PST 9.19 1366 - Not Applicable
01/08/2026 06 PM PST 9.17 1357 - Not Applicable
01/08/2026 07 PM PST 9.11 1332 - Not Applicable
01/08/2026 08 PM PST 9.08 1319 - Not Applicable
01/08/2026 09 PM PST 9.05 1306 - Not Applicable
01/08/2026 10 PM PST 9.00 1285 - Not Applicable
01/08/2026 11 PM PST 8.96 1268 - Not Applicable
01/09/2026 12 AM PST 8.92 1251 - Not Applicable
01/09/2026 01 AM PST 8.88 1232 - Not Applicable
01/09/2026 02 AM PST 8.86 1222 - Not Applicable
01/09/2026 03 AM PST 8.82 1204 - Not Applicable
01/09/2026 04 AM PST 8.79 1190 - Not Applicable
01/09/2026 05 AM PST 8.76 1176 - Not Applicable
01/09/2026 06 AM PST 8.73 1162 - Not Applicable
01/09/2026 07 AM PST 8.70 1148 - Not Applicable
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
01/09/2026 08 AM PST 8.67 1135 Not Applicable
01/09/2026 09 AM PST 8.64 1121 - Not Applicable
01/09/2026 10 AM PST 8.61 1108 - Not Applicable
01/09/2026 11 AM PST 8.58 1094 - Not Applicable
01/09/2026 12 PM PST 8.55 1081 - Not Applicable
01/09/2026 01 PM PST 8.52 1068 - Not Applicable
01/09/2026 02 PM PST 8.49 1054 - Not Applicable
01/09/2026 03 PM PST 8.47 1045 - Not Applicable
01/09/2026 04 PM PST 8.44 1028 - Not Applicable
01/09/2026 05 PM PST 8.42 1018 - Not Applicable
01/09/2026 06 PM PST 8.40 1007 - Not Applicable
01/09/2026 07 PM PST 8.38 996 - Not Applicable
01/09/2026 08 PM PST 8.36 986 - Not Applicable
01/09/2026 09 PM PST 8.33 970 - Not Applicable
01/09/2026 10 PM PST 8.31 960 - Not Applicable
01/09/2026 11 PM PST 8.29 950 - Not Applicable
01/10/2026 12 AM PST 8.27 939 - Not Applicable
01/10/2026 01 AM PST 8.25 929 - Not Applicable
01/10/2026 02 AM PST 8.23 919 - Not Applicable
01/10/2026 03 AM PST 8.21 909 - Not Applicable
01/10/2026 04 AM PST 8.19 899 - Not Applicable
01/10/2026 05 AM PST 8.17 888 - Not Applicable
01/10/2026 06 AM PST 8.15 876 - Not Applicable
01/10/2026 07 AM PST 8.14 870 - Not Applicable
01/10/2026 08 AM PST 8.12 859 - Not Applicable
01/10/2026 09 AM PST 8.10 847 - Not Applicable
01/10/2026 10 AM PST 8.09 842 - Not Applicable
01/10/2026 11 AM PST 8.07 830 - Not Applicable
01/10/2026 12 PM PST 8.05 819 - Not Applicable
01/10/2026 01 PM PST 8.04 813 - Not Applicable
01/10/2026 02 PM PST 8.02 802 - Not Applicable
01/10/2026 03 PM PST 8.00 791 - Not Applicable
01/10/2026 04 PM PST 7.99 786 - Not Applicable
01/10/2026 05 PM PST 7.97 775 - Not Applicable
01/10/2026 06 PM PST 7.96 769 - Not Applicable
01/10/2026 07 PM PST 7.94 759 - Not Applicable
01/10/2026 08 PM PST 7.92 748 - Not Applicable
01/10/2026 09 PM PST 7.91 743 - Not Applicable
01/10/2026 10 PM PST 7.89 732 - Not Applicable
01/10/2026 11 PM PST 7.88 727 - Not Applicable
01/11/2026 12 AM PST 7.86 717 - Not Applicable
01/11/2026 01 AM PST 7.84 707 - Not Applicable
01/11/2026 02 AM PST 7.83 701 - Not Applicable
01/11/2026 03 AM PST 7.81 691 - Not Applicable
01/11/2026 04 AM PST 7.79 681 - Not Applicable
01/11/2026 05 AM PST 7.78 676 - Not Applicable
01/11/2026 06 AM PST 7.76 667 - Not Applicable
01/11/2026 07 AM PST 7.75 662 - Not Applicable
01/11/2026 08 AM PST 7.73 652 - Not Applicable
01/11/2026 09 AM PST 7.71 642 - Not Applicable
01/11/2026 10 AM PST 7.70 638 - Not Applicable
01/11/2026 11 AM PST 7.68 628 - Not Applicable
01/11/2026 12 PM PST 7.67 623 - Not Applicable
01/11/2026 01 PM PST 7.65 614 - Not Applicable
01/11/2026 02 PM PST 7.63 605 - Not Applicable
01/11/2026 03 PM PST 7.62 600 - Not Applicable
01/11/2026 04 PM PST 7.60 591 - 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 7.54 564 0 Not Applicable
01/12/2026 12 AM PST 7.53 560 - 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
01/12/2026 05 AM PST 7.49 542 - Not Applicable
01/12/2026 06 AM PST 7.48 538 - Not Applicable
01/12/2026 07 AM PST 7.47 534 - Not Applicable
01/12/2026 08 AM PST 7.46 530 - Not Applicable
01/12/2026 09 AM PST 7.46 530 0 Not Applicable
01/12/2026 10 AM PST 7.45 525 - Not Applicable
01/12/2026 11 AM PST 7.44 521 - Not Applicable
01/12/2026 12 PM PST 7.43 517 - Not Applicable
01/12/2026 01 PM PST 7.43 517 0 Not Applicable
01/12/2026 02 PM PST 7.42 513 - Not Applicable
01/12/2026 03 PM PST 7.41 509 - Not Applicable
01/12/2026 04 PM PST 7.41 509 0 Not Applicable
01/12/2026 05 PM PST 7.40 505 - Not Applicable
01/12/2026 06 PM PST 7.39 500 - Not Applicable
01/12/2026 07 PM PST 7.38 496 - Not Applicable
01/12/2026 08 PM PST 7.38 496 0 Not Applicable
01/12/2026 09 PM PST 7.37 492 - Not Applicable
01/12/2026 10 PM PST 7.37 492 0 Not Applicable
01/12/2026 11 PM PST 7.36 488 - Not Applicable
01/13/2026 12 AM PST 7.36 488 0 Not Applicable
01/13/2026 01 AM PST 7.35 484 - Not Applicable
01/13/2026 02 AM PST 7.34 480 - Not Applicable
01/13/2026 03 AM PST 7.34 480 0 Not Applicable
01/13/2026 04 AM PST 7.33 476 - Not Applicable
01/13/2026 05 AM PST 7.33 476 0 Not Applicable
01/13/2026 06 AM PST 7.32 472 - Not Applicable
01/13/2026 07 AM PST 7.31 468 - Not Applicable
01/13/2026 08 AM PST 7.31 468 0 Not Applicable
01/13/2026 09 AM PST 7.30 465 - Not Applicable
01/13/2026 10 AM PST 7.29 461 - Not Applicable
01/13/2026 11 AM PST 7.29 461 0 Not Applicable
01/13/2026 12 PM PST 7.28 457 - Not Applicable
01/13/2026 01 PM PST 7.27 453 - Not Applicable
01/13/2026 02 PM PST 7.27 453 0 Not Applicable
01/13/2026 03 PM PST 7.26 449 - Not Applicable
01/13/2026 04 PM PST 7.25 445 - Not Applicable
01/13/2026 05 PM PST 7.25 445 0 Not Applicable
01/13/2026 06 PM PST 7.24 442 - Not Applicable
01/13/2026 07 PM PST 7.24 442 0 Not Applicable
01/13/2026 08 PM PST 7.23 438 - Not Applicable
01/13/2026 09 PM PST 7.22 434 - Not Applicable
01/13/2026 10 PM PST 7.22 434 0 Not Applicable
01/13/2026 11 PM PST 7.21 430 - Not Applicable
01/14/2026 12 AM PST 7.21 430 0 Not Applicable
01/14/2026 01 AM PST 7.20 427 - Not Applicable
01/14/2026 02 AM PST 7.19 423 - Not Applicable
01/14/2026 03 AM PST 7.19 423 0 Not Applicable
01/14/2026 04 AM PST 7.18 419 - 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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