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RUSSIAN RIVER - GEYSERVILLE (GEYC1)
| Latitude: 38.71º N | Longitude: 122.89º W | Elevation: 190 Feet | | Forecast Type: Unofficial Location |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Apr 02 2026 at 8:41 AM PDT | Next Issuance: | Apr 02 2026 at 3:00 PM PDT
| |
| 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: 04/02/2026 at 08:42 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/28/2026 at 03:00 PM PDT
# Maximum Observed Stage: 25.32 Feet
# Maximum Observed Flow: 400 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/02/2026 at 02:00 PM PDT
# Maximum Forecast Stage: 25.32 Feet
# Maximum Forecast Flow: 400 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/28/2026 08 AM PDT 25.28 388 Normal
03/28/2026 09 AM PDT 25.29 391 + Normal
03/28/2026 10 AM PDT 25.29 391 0 Normal
03/28/2026 11 AM PDT 25.29 391 0 Normal
03/28/2026 12 PM PDT 25.28 388 - Normal
03/28/2026 01 PM PDT 25.30 394 + Normal
03/28/2026 02 PM PDT 25.31 397 + Normal
03/28/2026 03 PM PDT 25.32 400 + Normal
03/28/2026 04 PM PDT 25.30 394 - Normal
03/28/2026 05 PM PDT 25.29 391 - Normal
03/28/2026 06 PM PDT 25.29 391 0 Normal
03/28/2026 07 PM PDT 25.29 391 0 Normal
03/28/2026 08 PM PDT 25.29 391 0 Normal
03/28/2026 09 PM PDT 25.29 391 0 Normal
03/28/2026 10 PM PDT 25.29 391 0 Normal
03/28/2026 11 PM PDT 25.28 388 - Normal
03/29/2026 12 AM PDT 25.28 388 0 Normal
03/29/2026 01 AM PDT 25.28 388 0 Normal
03/29/2026 02 AM PDT 25.28 388 0 Normal
03/29/2026 03 AM PDT 25.27 385 - Normal
03/29/2026 04 AM PDT 25.28 388 + Normal
03/29/2026 05 AM PDT 25.27 385 - Normal
03/29/2026 06 AM PDT 25.27 385 0 Normal
03/29/2026 07 AM PDT 25.27 385 0 Normal
03/29/2026 08 AM PDT 25.26 382 - Normal
03/29/2026 09 AM PDT 25.27 385 + Normal
03/29/2026 10 AM PDT 25.27 385 0 Normal
03/29/2026 11 AM PDT 25.26 382 - Normal
03/29/2026 12 PM PDT 25.27 385 + Normal
03/29/2026 01 PM PDT 25.27 385 0 Normal
03/29/2026 02 PM PDT 25.26 382 - Normal
03/29/2026 03 PM PDT 25.26 382 0 Normal
03/29/2026 04 PM PDT 25.26 382 0 Normal
03/29/2026 05 PM PDT 25.26 382 0 Normal
03/29/2026 06 PM PDT 25.26 382 0 Normal
03/29/2026 07 PM PDT 25.25 379 - Normal
03/29/2026 08 PM PDT 25.26 382 + Normal
03/29/2026 09 PM PDT 25.26 382 0 Normal
03/29/2026 10 PM PDT 25.26 382 0 Normal
03/29/2026 11 PM PDT 25.25 379 - Normal
03/30/2026 12 AM PDT 25.25 379 0 Normal
03/30/2026 01 AM PDT 25.25 379 0 Normal
03/30/2026 02 AM PDT 25.25 379 0 Normal
03/30/2026 03 AM PDT 25.25 379 0 Normal
03/30/2026 04 AM PDT 25.24 375 - Normal
03/30/2026 05 AM PDT 25.24 375 0 Normal
03/30/2026 06 AM PDT 25.24 375 0 Normal
03/30/2026 07 AM PDT 25.23 372 - Normal
03/30/2026 08 AM PDT 25.26 382 + Normal
03/30/2026 09 AM PDT 25.24 375 - Normal
03/30/2026 10 AM PDT 25.23 372 - Normal
03/30/2026 11 AM PDT 25.23 372 0 Normal
03/30/2026 12 PM PDT 25.23 372 0 Normal
03/30/2026 01 PM PDT 25.23 372 0 Normal
03/30/2026 02 PM PDT 25.28 388 + Normal
03/30/2026 03 PM PDT 25.23 372 - Normal
03/30/2026 04 PM PDT 25.21 366 - Normal
03/30/2026 05 PM PDT 25.25 379 + Normal
03/30/2026 06 PM PDT 25.23 372 - Normal
03/30/2026 07 PM PDT 25.23 372 0 Normal
03/30/2026 08 PM PDT 25.22 369 - Normal
03/30/2026 09 PM PDT 25.24 375 + Normal
03/30/2026 10 PM PDT 25.23 372 - Normal
03/30/2026 11 PM PDT 25.23 372 0 Normal
03/31/2026 12 AM PDT 25.23 372 0 Normal
03/31/2026 01 AM PDT 25.22 369 - Normal
03/31/2026 02 AM PDT 25.22 369 0 Normal
03/31/2026 03 AM PDT 25.23 372 + Normal
03/31/2026 04 AM PDT 25.22 369 - Normal
03/31/2026 05 AM PDT 25.23 372 + Normal
03/31/2026 06 AM PDT 25.23 372 0 Normal
03/31/2026 07 AM PDT 25.22 369 - Normal
03/31/2026 08 AM PDT 25.24 375 + Normal
03/31/2026 09 AM PDT 25.25 379 + Normal
03/31/2026 10 AM PDT 25.25 379 0 Normal
03/31/2026 11 AM PDT 25.26 382 + Normal
03/31/2026 12 PM PDT 25.25 379 - Normal
03/31/2026 01 PM PDT 25.25 379 0 Normal
03/31/2026 02 PM PDT 25.25 379 0 Normal
03/31/2026 03 PM PDT 25.25 379 0 Normal
03/31/2026 04 PM PDT 25.23 372 - Normal
03/31/2026 05 PM PDT 25.23 372 0 Normal
03/31/2026 06 PM PDT 25.24 375 + Normal
03/31/2026 07 PM PDT 25.23 372 - Normal
03/31/2026 08 PM PDT 25.23 372 0 Normal
03/31/2026 09 PM PDT 25.24 375 + Normal
03/31/2026 10 PM PDT 25.24 375 0 Normal
03/31/2026 11 PM PDT 25.24 375 0 Normal
04/01/2026 12 AM PDT 25.24 375 0 Normal
04/01/2026 01 AM PDT 25.24 375 0 Normal
04/01/2026 02 AM PDT 25.23 372 - Normal
04/01/2026 03 AM PDT 25.23 372 0 Normal
04/01/2026 04 AM PDT 25.24 375 + Normal
04/01/2026 05 AM PDT 25.25 379 + Normal
04/01/2026 06 AM PDT 25.25 379 0 Normal
04/01/2026 07 AM PDT 25.24 375 - Normal
04/01/2026 08 AM PDT 25.28 388 + Normal
04/01/2026 09 AM PDT 25.28 388 0 Normal
04/01/2026 10 AM PDT 25.26 382 - Normal
04/01/2026 11 AM PDT 25.26 382 0 Normal
04/01/2026 12 PM PDT 25.27 385 + Normal
04/01/2026 01 PM PDT 25.27 385 0 Normal
04/01/2026 02 PM PDT 25.27 385 0 Normal
04/01/2026 03 PM PDT 25.27 385 0 Normal
04/01/2026 04 PM PDT 25.27 385 0 Normal
04/01/2026 05 PM PDT 25.29 391 + Normal
04/01/2026 06 PM PDT 25.29 391 0 Normal
04/01/2026 07 PM PDT 25.28 388 - Normal
04/01/2026 08 PM PDT 25.29 391 + Normal
04/01/2026 09 PM PDT 25.30 394 + Normal
04/01/2026 10 PM PDT 25.28 388 - Normal
04/01/2026 11 PM PDT 25.30 394 + Normal
04/02/2026 12 AM PDT 25.29 391 - Normal
04/02/2026 01 AM PDT 25.28 388 - Normal
04/02/2026 02 AM PDT 25.30 394 + Normal
04/02/2026 03 AM PDT 25.30 394 0 Normal
04/02/2026 04 AM PDT 25.29 391 - Normal
04/02/2026 05 AM PDT 25.30 394 + Normal
04/02/2026 06 AM PDT 25.30 394 0 Normal
04/02/2026 07 AM PDT 25.30 394 0 Normal
04/02/2026 08 AM PDT 25.30 394 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/02/2026 09 AM PDT 25.31 397 Normal
04/02/2026 10 AM PDT 25.31 397 0 Normal
04/02/2026 11 AM PDT 25.31 397 0 Normal
04/02/2026 12 PM PDT 25.31 397 0 Normal
04/02/2026 01 PM PDT 25.31 397 0 Normal
04/02/2026 02 PM PDT 25.32 400 + Normal
04/02/2026 03 PM PDT 25.32 400 0 Normal
04/02/2026 04 PM PDT 25.32 400 0 Normal
04/02/2026 05 PM PDT 25.32 400 0 Normal
04/02/2026 06 PM PDT 25.32 400 0 Normal
04/02/2026 07 PM PDT 25.32 400 0 Normal
04/02/2026 08 PM PDT 25.32 400 0 Normal
04/02/2026 09 PM PDT 25.32 400 0 Normal
04/02/2026 10 PM PDT 25.32 400 0 Normal
04/02/2026 11 PM PDT 25.32 400 0 Normal
04/03/2026 12 AM PDT 25.32 400 0 Normal
04/03/2026 01 AM PDT 25.32 400 0 Normal
04/03/2026 02 AM PDT 25.31 397 - Normal
04/03/2026 03 AM PDT 25.31 397 0 Normal
04/03/2026 04 AM PDT 25.31 397 0 Normal
04/03/2026 05 AM PDT 25.31 397 0 Normal
04/03/2026 06 AM PDT 25.31 397 0 Normal
04/03/2026 07 AM PDT 25.30 394 - Normal
04/03/2026 08 AM PDT 25.30 394 0 Normal
04/03/2026 09 AM PDT 25.30 394 0 Normal
04/03/2026 10 AM PDT 25.29 391 - Normal
04/03/2026 11 AM PDT 25.29 391 0 Normal
04/03/2026 12 PM PDT 25.29 391 0 Normal
04/03/2026 01 PM PDT 25.28 388 - Normal
04/03/2026 02 PM PDT 25.28 388 0 Normal
04/03/2026 03 PM PDT 25.28 388 0 Normal
04/03/2026 04 PM PDT 25.27 385 - Normal
04/03/2026 05 PM PDT 25.27 385 0 Normal
04/03/2026 06 PM PDT 25.27 385 0 Normal
04/03/2026 07 PM PDT 25.27 385 0 Normal
04/03/2026 08 PM PDT 25.26 382 - Normal
04/03/2026 09 PM PDT 25.26 382 0 Normal
04/03/2026 10 PM PDT 25.26 382 0 Normal
04/03/2026 11 PM PDT 25.26 382 0 Normal
04/04/2026 12 AM PDT 25.25 379 - Normal
04/04/2026 01 AM PDT 25.25 379 0 Normal
04/04/2026 02 AM PDT 25.25 379 0 Normal
04/04/2026 03 AM PDT 25.25 379 0 Normal
04/04/2026 04 AM PDT 25.25 379 0 Normal
04/04/2026 05 AM PDT 25.25 379 0 Normal
04/04/2026 06 AM PDT 25.24 375 - Normal
04/04/2026 07 AM PDT 25.24 375 0 Normal
04/04/2026 08 AM PDT 25.24 375 0 Normal
04/04/2026 09 AM PDT 25.24 375 0 Normal
04/04/2026 10 AM PDT 25.24 375 0 Normal
04/04/2026 11 AM PDT 25.24 375 0 Normal
04/04/2026 12 PM PDT 25.24 375 0 Normal
04/04/2026 01 PM PDT 25.23 372 - Normal
04/04/2026 02 PM PDT 25.23 372 0 Normal
04/04/2026 03 PM PDT 25.23 372 0 Normal
04/04/2026 04 PM PDT 25.23 372 0 Normal
04/04/2026 05 PM PDT 25.23 372 0 Normal
04/04/2026 06 PM PDT 25.23 372 0 Normal
04/04/2026 07 PM PDT 25.23 372 0 Normal
04/04/2026 08 PM PDT 25.23 372 0 Normal
04/04/2026 09 PM PDT 25.23 372 0 Normal
04/04/2026 10 PM PDT 25.23 372 0 Normal
04/04/2026 11 PM PDT 25.23 372 0 Normal
04/05/2026 12 AM PDT 25.23 372 0 Normal
04/05/2026 01 AM PDT 25.23 372 0 Normal
04/05/2026 02 AM PDT 25.23 372 0 Normal
04/05/2026 03 AM PDT 25.23 372 0 Normal
04/05/2026 04 AM PDT 25.23 372 0 Normal
04/05/2026 05 AM PDT 25.22 369 - Normal
04/05/2026 06 AM PDT 25.22 369 0 Normal
04/05/2026 07 AM PDT 25.22 369 0 Normal
04/05/2026 08 AM PDT 25.22 369 0 Normal
04/05/2026 09 AM PDT 25.22 369 0 Normal
04/05/2026 10 AM PDT 25.22 369 0 Normal
04/05/2026 11 AM PDT 25.22 369 0 Normal
04/05/2026 12 PM PDT 25.22 369 0 Normal
04/05/2026 01 PM PDT 25.22 369 0 Normal
04/05/2026 02 PM PDT 25.22 369 0 Normal
04/05/2026 03 PM PDT 25.22 369 0 Normal
04/05/2026 04 PM PDT 25.22 369 0 Normal
04/05/2026 05 PM PDT 25.22 369 0 Normal
04/05/2026 06 PM PDT 25.22 369 0 Normal
04/05/2026 07 PM PDT 25.22 369 0 Normal
04/05/2026 08 PM PDT 25.22 369 0 Normal
04/05/2026 09 PM PDT 25.22 369 0 Normal
04/05/2026 10 PM PDT 25.22 369 0 Normal
04/05/2026 11 PM PDT 25.21 366 - Normal
04/06/2026 12 AM PDT 25.21 366 0 Normal
04/06/2026 01 AM PDT 25.21 366 0 Normal
04/06/2026 02 AM PDT 25.21 366 0 Normal
04/06/2026 03 AM PDT 25.21 366 0 Normal
04/06/2026 04 AM PDT 25.21 366 0 Normal
04/06/2026 05 AM PDT 25.21 366 0 Normal
04/06/2026 06 AM PDT 25.21 366 0 Normal
04/06/2026 07 AM PDT 25.21 366 0 Normal
04/06/2026 08 AM PDT 25.21 366 0 Normal
04/06/2026 09 AM PDT 25.21 366 0 Normal
04/06/2026 10 AM PDT 25.21 366 0 Normal
04/06/2026 11 AM PDT 25.21 366 0 Normal
04/06/2026 12 PM PDT 25.21 366 0 Normal
04/06/2026 01 PM PDT 25.21 366 0 Normal
04/06/2026 02 PM PDT 25.21 366 0 Normal
04/06/2026 03 PM PDT 25.21 366 0 Normal
04/06/2026 04 PM PDT 25.21 366 0 Normal
04/06/2026 05 PM PDT 25.21 366 0 Normal
04/06/2026 06 PM PDT 25.21 366 0 Normal
04/06/2026 07 PM PDT 25.20 363 - Normal
04/06/2026 08 PM PDT 25.20 363 0 Normal
04/06/2026 09 PM PDT 25.20 363 0 Normal
04/06/2026 10 PM PDT 25.20 363 0 Normal
04/06/2026 11 PM PDT 25.20 363 0 Normal
04/07/2026 12 AM PDT 25.20 363 0 Normal
04/07/2026 01 AM PDT 25.20 363 0 Normal
04/07/2026 02 AM PDT 25.20 363 0 Normal
04/07/2026 03 AM PDT 25.20 363 0 Normal
04/07/2026 04 AM PDT 25.20 363 0 Normal
04/07/2026 05 AM PDT 25.20 363 0 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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