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RUSSIAN RIVER - GEYSERVILLE (GEYC1)
| Latitude: 38.71º N | Longitude: 122.89º W | Elevation: 190 Feet | | | |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Feb 11 2026 at 1:08 PM PST | Next Issuance: | Feb 12 2026 at 9:00 AM PST
| |
| Action/Monitor: 38.0 Feet | Minor Flood: 39.7 Feet | Moderate Flood: 46.0 Feet | Major Flood: 50.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Russian River - Geyserville (GEYC1)
#
# File Generation Time: 02/11/2026 at 01:10 PM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 02/06/2026 at 03:00 PM PST
# Maximum Observed Stage: 25.53 Feet
# Maximum Observed Flow: 485 cfs
#
# Earliest Date & Time of Maximum Forecast: 02/16/2026 at 04:00 AM PST
# Maximum Forecast Stage: 29.14 Feet
# Maximum Forecast Flow: 2454 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
02/06/2026 01 PM PST 25.53 485 Normal
02/06/2026 02 PM PST 25.53 485 0 Normal
02/06/2026 03 PM PST 25.53 485 0 Normal
02/06/2026 04 PM PST 25.52 482 - Normal
02/06/2026 05 PM PST 25.52 482 0 Normal
02/06/2026 06 PM PST 25.51 479 - Normal
02/06/2026 07 PM PST 25.51 479 0 Normal
02/06/2026 08 PM PST 25.51 479 0 Normal
02/06/2026 09 PM PST 25.51 479 0 Normal
02/06/2026 10 PM PST 25.50 476 - Normal
02/06/2026 11 PM PST 25.49 473 - Normal
02/07/2026 12 AM PST 25.49 473 0 Normal
02/07/2026 01 AM PST 25.48 470 - Normal
02/07/2026 02 AM PST 25.49 473 + Normal
02/07/2026 03 AM PST 25.48 470 - Normal
02/07/2026 04 AM PST 25.49 473 + Normal
02/07/2026 05 AM PST 25.48 470 - Normal
02/07/2026 06 AM PST 25.48 470 0 Normal
02/07/2026 07 AM PST 25.47 467 - Normal
02/07/2026 08 AM PST 25.47 467 0 Normal
02/07/2026 09 AM PST 25.48 470 + Normal
02/07/2026 10 AM PST 25.48 470 0 Normal
02/07/2026 11 AM PST 25.48 470 0 Normal
02/07/2026 12 PM PST 25.48 470 0 Normal
02/07/2026 01 PM PST 25.48 470 0 Normal
02/07/2026 02 PM PST 25.47 467 - Normal
02/07/2026 03 PM PST 25.48 470 + Normal
02/07/2026 04 PM PST 25.47 467 - Normal
02/07/2026 05 PM PST 25.47 467 0 Normal
02/07/2026 06 PM PST 25.47 467 0 Normal
02/07/2026 07 PM PST 25.47 467 0 Normal
02/07/2026 08 PM PST 25.46 464 - Normal
02/07/2026 09 PM PST 25.46 464 0 Normal
02/07/2026 10 PM PST 25.47 467 + Normal
02/07/2026 11 PM PST 25.46 464 - Normal
02/08/2026 12 AM PST 25.46 464 0 Normal
02/08/2026 01 AM PST 25.45 461 - Normal
02/08/2026 02 AM PST 25.45 461 0 Normal
02/08/2026 03 AM PST 25.46 464 + Normal
02/08/2026 04 AM PST 25.46 464 0 Normal
02/08/2026 05 AM PST 25.45 461 - Normal
02/08/2026 06 AM PST 25.45 461 0 Normal
02/08/2026 07 AM PST 25.44 458 - Normal
02/08/2026 08 AM PST 25.44 458 0 Normal
02/08/2026 09 AM PST 25.44 458 0 Normal
02/08/2026 10 AM PST 25.44 458 0 Normal
02/08/2026 11 AM PST 25.45 461 + Normal
02/08/2026 12 PM PST 25.44 458 - Normal
02/08/2026 01 PM PST 25.45 461 + Normal
02/08/2026 02 PM PST 25.44 458 - Normal
02/08/2026 03 PM PST 25.45 461 + Normal
02/08/2026 04 PM PST 25.44 458 - Normal
02/08/2026 05 PM PST 25.44 458 0 Normal
02/08/2026 06 PM PST 25.44 458 0 Normal
02/08/2026 07 PM PST 25.43 455 - Normal
02/08/2026 08 PM PST 25.43 455 0 Normal
02/08/2026 09 PM PST 25.43 455 0 Normal
02/08/2026 10 PM PST 25.43 455 0 Normal
02/08/2026 11 PM PST 25.44 458 + Normal
02/09/2026 12 AM PST 25.43 455 - Normal
02/09/2026 01 AM PST 25.43 455 0 Normal
02/09/2026 02 AM PST 25.43 455 0 Normal
02/09/2026 03 AM PST 25.42 452 - Normal
02/09/2026 04 AM PST 25.42 452 0 Normal
02/09/2026 05 AM PST 25.42 452 0 Normal
02/09/2026 06 AM PST 25.42 452 0 Normal
02/09/2026 07 AM PST 25.42 452 0 Normal
02/09/2026 08 AM PST 25.42 452 0 Normal
02/09/2026 09 AM PST 25.42 452 0 Normal
02/09/2026 10 AM PST 25.43 455 + Normal
02/09/2026 11 AM PST 25.42 452 - Normal
02/09/2026 12 PM PST 25.43 455 + Normal
02/09/2026 01 PM PST 25.44 458 + Normal
02/09/2026 02 PM PST 25.43 455 - Normal
02/09/2026 03 PM PST 25.43 455 0 Normal
02/09/2026 04 PM PST 25.43 455 0 Normal
02/09/2026 05 PM PST 25.44 458 + Normal
02/09/2026 06 PM PST 25.43 455 - Normal
02/09/2026 07 PM PST 25.42 452 - Normal
02/09/2026 08 PM PST 25.42 452 0 Normal
02/09/2026 09 PM PST 25.42 452 0 Normal
02/09/2026 10 PM PST 25.41 450 - Normal
02/09/2026 11 PM PST 25.42 452 + Normal
02/10/2026 12 AM PST 25.41 450 - Normal
02/10/2026 01 AM PST 25.42 452 + Normal
02/10/2026 02 AM PST 25.41 450 - Normal
02/10/2026 03 AM PST 25.42 452 + Normal
02/10/2026 04 AM PST 25.41 450 - Normal
02/10/2026 05 AM PST 25.41 450 0 Normal
02/10/2026 06 AM PST 25.42 452 + Normal
02/10/2026 07 AM PST 25.41 450 - Normal
02/10/2026 08 AM PST 25.42 452 + Normal
02/10/2026 09 AM PST 25.41 450 - Normal
02/10/2026 10 AM PST 25.42 452 + Normal
02/10/2026 11 AM PST 25.41 450 - Normal
02/10/2026 12 PM PST 25.41 450 0 Normal
02/10/2026 01 PM PST 25.41 450 0 Normal
02/10/2026 02 PM PST 25.42 452 + Normal
02/10/2026 03 PM PST 25.41 450 - Normal
02/10/2026 04 PM PST 25.42 452 + Normal
02/10/2026 05 PM PST 25.42 452 0 Normal
02/10/2026 06 PM PST 25.43 455 + Normal
02/10/2026 07 PM PST 25.43 455 0 Normal
02/10/2026 08 PM PST 25.43 455 0 Normal
02/10/2026 09 PM PST 25.43 455 0 Normal
02/10/2026 10 PM PST 25.43 455 0 Normal
02/10/2026 11 PM PST 25.43 455 0 Normal
02/11/2026 12 AM PST 25.43 455 0 Normal
02/11/2026 01 AM PST 25.43 455 0 Normal
02/11/2026 02 AM PST 25.44 458 + Normal
02/11/2026 03 AM PST 25.44 458 0 Normal
02/11/2026 04 AM PST 25.45 461 + Normal
02/11/2026 05 AM PST 25.45 461 0 Normal
02/11/2026 06 AM PST 25.46 464 + Normal
02/11/2026 07 AM PST 25.46 464 0 Normal
02/11/2026 08 AM PST 25.46 464 0 Normal
02/11/2026 09 AM PST 25.46 464 0 Normal
02/11/2026 10 AM PST 25.48 470 + Normal
02/11/2026 11 AM PST 25.48 470 0 Normal
02/11/2026 12 PM PST 25.49 473 + Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
02/11/2026 01 PM PST 25.49 473 Normal
02/11/2026 02 PM PST 25.50 476 + Normal
02/11/2026 03 PM PST 25.50 476 0 Normal
02/11/2026 04 PM PST 25.51 479 + Normal
02/11/2026 05 PM PST 25.51 479 0 Normal
02/11/2026 06 PM PST 25.51 479 0 Normal
02/11/2026 07 PM PST 25.51 479 0 Normal
02/11/2026 08 PM PST 25.51 479 0 Normal
02/11/2026 09 PM PST 25.51 479 0 Normal
02/11/2026 10 PM PST 25.51 479 0 Normal
02/11/2026 11 PM PST 25.51 479 0 Normal
02/12/2026 12 AM PST 25.51 479 0 Normal
02/12/2026 01 AM PST 25.51 479 0 Normal
02/12/2026 02 AM PST 25.50 476 - Normal
02/12/2026 03 AM PST 25.50 476 0 Normal
02/12/2026 04 AM PST 25.50 476 0 Normal
02/12/2026 05 AM PST 25.49 473 - Normal
02/12/2026 06 AM PST 25.49 473 0 Normal
02/12/2026 07 AM PST 25.48 470 - Normal
02/12/2026 08 AM PST 25.48 470 0 Normal
02/12/2026 09 AM PST 25.48 470 0 Normal
02/12/2026 10 AM PST 25.47 467 - Normal
02/12/2026 11 AM PST 25.46 464 - Normal
02/12/2026 12 PM PST 25.46 464 0 Normal
02/12/2026 01 PM PST 25.45 461 - Normal
02/12/2026 02 PM PST 25.45 461 0 Normal
02/12/2026 03 PM PST 25.44 458 - Normal
02/12/2026 04 PM PST 25.44 458 0 Normal
02/12/2026 05 PM PST 25.43 455 - Normal
02/12/2026 06 PM PST 25.43 455 0 Normal
02/12/2026 07 PM PST 25.42 452 - Normal
02/12/2026 08 PM PST 25.42 452 0 Normal
02/12/2026 09 PM PST 25.41 450 - Normal
02/12/2026 10 PM PST 25.41 450 0 Normal
02/12/2026 11 PM PST 25.40 447 - Normal
02/13/2026 12 AM PST 25.40 447 0 Normal
02/13/2026 01 AM PST 25.40 447 0 Normal
02/13/2026 02 AM PST 25.39 444 - Normal
02/13/2026 03 AM PST 25.39 444 0 Normal
02/13/2026 04 AM PST 25.39 444 0 Normal
02/13/2026 05 AM PST 25.39 444 0 Normal
02/13/2026 06 AM PST 25.39 444 0 Normal
02/13/2026 07 AM PST 25.39 444 0 Normal
02/13/2026 08 AM PST 25.39 444 0 Normal
02/13/2026 09 AM PST 25.39 444 0 Normal
02/13/2026 10 AM PST 25.39 444 0 Normal
02/13/2026 11 AM PST 25.38 441 - Normal
02/13/2026 12 PM PST 25.38 441 0 Normal
02/13/2026 01 PM PST 25.38 441 0 Normal
02/13/2026 02 PM PST 25.38 441 0 Normal
02/13/2026 03 PM PST 25.38 441 0 Normal
02/13/2026 04 PM PST 25.38 441 0 Normal
02/13/2026 05 PM PST 25.38 441 0 Normal
02/13/2026 06 PM PST 25.39 444 + Normal
02/13/2026 07 PM PST 25.39 444 0 Normal
02/13/2026 08 PM PST 25.39 444 0 Normal
02/13/2026 09 PM PST 25.39 444 0 Normal
02/13/2026 10 PM PST 25.39 444 0 Normal
02/13/2026 11 PM PST 25.39 444 0 Normal
02/14/2026 12 AM PST 25.39 444 0 Normal
02/14/2026 01 AM PST 25.39 444 0 Normal
02/14/2026 02 AM PST 25.39 444 0 Normal
02/14/2026 03 AM PST 25.39 444 0 Normal
02/14/2026 04 AM PST 25.39 444 0 Normal
02/14/2026 05 AM PST 25.39 444 0 Normal
02/14/2026 06 AM PST 25.39 444 0 Normal
02/14/2026 07 AM PST 25.39 444 0 Normal
02/14/2026 08 AM PST 25.39 444 0 Normal
02/14/2026 09 AM PST 25.39 444 0 Normal
02/14/2026 10 AM PST 25.40 447 + Normal
02/14/2026 11 AM PST 25.40 447 0 Normal
02/14/2026 12 PM PST 25.40 447 0 Normal
02/14/2026 01 PM PST 25.40 447 0 Normal
02/14/2026 02 PM PST 25.40 447 0 Normal
02/14/2026 03 PM PST 25.40 447 0 Normal
02/14/2026 04 PM PST 25.40 447 0 Normal
02/14/2026 05 PM PST 25.40 447 0 Normal
02/14/2026 06 PM PST 25.40 447 0 Normal
02/14/2026 07 PM PST 25.41 450 + Normal
02/14/2026 08 PM PST 25.41 450 0 Normal
02/14/2026 09 PM PST 25.41 450 0 Normal
02/14/2026 10 PM PST 25.41 450 0 Normal
02/14/2026 11 PM PST 25.41 450 0 Normal
02/15/2026 12 AM PST 25.41 450 0 Normal
02/15/2026 01 AM PST 25.41 450 0 Normal
02/15/2026 02 AM PST 25.42 452 + Normal
02/15/2026 03 AM PST 25.42 452 0 Normal
02/15/2026 04 AM PST 25.42 452 0 Normal
02/15/2026 05 AM PST 25.43 455 + Normal
02/15/2026 06 AM PST 25.43 455 0 Normal
02/15/2026 07 AM PST 25.44 458 + Normal
02/15/2026 08 AM PST 25.45 461 + Normal
02/15/2026 09 AM PST 25.45 461 0 Normal
02/15/2026 10 AM PST 25.46 464 + Normal
02/15/2026 11 AM PST 25.48 470 + Normal
02/15/2026 12 PM PST 25.49 473 + Normal
02/15/2026 01 PM PST 25.50 476 + Normal
02/15/2026 02 PM PST 25.51 479 + Normal
02/15/2026 03 PM PST 25.54 488 + Normal
02/15/2026 04 PM PST 25.57 497 + Normal
02/15/2026 05 PM PST 25.63 515 + Normal
02/15/2026 06 PM PST 25.82 574 + Normal
02/15/2026 07 PM PST 26.18 723 + Normal
02/15/2026 08 PM PST 26.58 917 + Normal
02/15/2026 09 PM PST 26.95 1112 + Normal
02/15/2026 10 PM PST 27.28 1298 + Normal
02/15/2026 11 PM PST 27.50 1429 + Normal
02/16/2026 12 AM PST 27.72 1566 + Normal
02/16/2026 01 AM PST 27.96 1720 + Normal
02/16/2026 02 AM PST 28.25 1893 + Normal
02/16/2026 03 AM PST 28.75 2201 + Normal
02/16/2026 04 AM PST 29.14 2454 + Normal
#
# 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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