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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: | Mar 19 2026 at 7:01 AM PDT | Next Issuance: | Mar 19 2026 at 3:00 PM PDT
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| 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: 03/19/2026 at 07:03 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/14/2026 at 07:00 AM PDT
# Maximum Observed Stage: 26.04 Feet
# Maximum Observed Flow: 654 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/19/2026 at 07:00 AM PDT
# Maximum Forecast Stage: 25.63 Feet
# Maximum Forecast Flow: 503 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/14/2026 07 AM PDT 26.04 654 Normal
03/14/2026 08 AM PDT 26.03 650 - Normal
03/14/2026 09 AM PDT 26.02 646 - Normal
03/14/2026 10 AM PDT 26.01 642 - Normal
03/14/2026 11 AM PDT 26.01 642 0 Normal
03/14/2026 12 PM PDT 26.00 638 - Normal
03/14/2026 01 PM PDT 26.01 642 + Normal
03/14/2026 02 PM PDT 26.01 642 0 Normal
03/14/2026 03 PM PDT 26.00 638 - Normal
03/14/2026 04 PM PDT 26.00 638 0 Normal
03/14/2026 05 PM PDT 25.99 634 - Normal
03/14/2026 06 PM PDT 25.98 631 - Normal
03/14/2026 07 PM PDT 25.98 631 0 Normal
03/14/2026 08 PM PDT 25.97 627 - Normal
03/14/2026 09 PM PDT 25.97 627 0 Normal
03/14/2026 10 PM PDT 25.96 623 - Normal
03/14/2026 11 PM PDT 25.96 623 0 Normal
03/15/2026 12 AM PDT 25.95 619 - Normal
03/15/2026 01 AM PDT 25.95 619 0 Normal
03/15/2026 02 AM PDT 25.95 619 0 Normal
03/15/2026 03 AM PDT 25.94 615 - Normal
03/15/2026 04 AM PDT 25.93 611 - Normal
03/15/2026 05 AM PDT 25.92 607 - Normal
03/15/2026 06 AM PDT 25.92 607 0 Normal
03/15/2026 07 AM PDT 25.92 607 0 Normal
03/15/2026 08 AM PDT 25.91 603 - Normal
03/15/2026 09 AM PDT 25.91 603 0 Normal
03/15/2026 10 AM PDT 25.91 603 0 Normal
03/15/2026 11 AM PDT 25.91 603 0 Normal
03/15/2026 12 PM PDT 25.91 603 0 Normal
03/15/2026 01 PM PDT 25.90 600 - Normal
03/15/2026 02 PM PDT 25.91 603 + Normal
03/15/2026 03 PM PDT 25.90 600 - Normal
03/15/2026 04 PM PDT 25.90 600 0 Normal
03/15/2026 05 PM PDT 25.88 592 - Normal
03/15/2026 06 PM PDT 25.88 592 0 Normal
03/15/2026 07 PM PDT 25.87 589 - Normal
03/15/2026 08 PM PDT 25.87 589 0 Normal
03/15/2026 09 PM PDT 25.86 585 - Normal
03/15/2026 10 PM PDT 25.85 581 - Normal
03/15/2026 11 PM PDT 25.85 581 0 Normal
03/16/2026 12 AM PDT 25.84 578 - Normal
03/16/2026 01 AM PDT 25.83 574 - Normal
03/16/2026 02 AM PDT 25.83 574 0 Normal
03/16/2026 03 AM PDT 25.83 574 0 Normal
03/16/2026 04 AM PDT 25.83 574 0 Normal
03/16/2026 05 AM PDT 25.82 570 - Normal
03/16/2026 06 AM PDT 25.81 567 - Normal
03/16/2026 07 AM PDT 25.82 570 + Normal
03/16/2026 08 AM PDT 25.80 563 - Normal
03/16/2026 09 AM PDT 25.80 563 0 Normal
03/16/2026 10 AM PDT 25.80 563 0 Normal
03/16/2026 11 AM PDT 25.80 563 0 Normal
03/16/2026 12 PM PDT 25.79 559 - Normal
03/16/2026 01 PM PDT 25.81 567 + Normal
03/16/2026 02 PM PDT 25.81 567 0 Normal
03/16/2026 03 PM PDT 25.80 563 - Normal
03/16/2026 04 PM PDT 25.80 563 0 Normal
03/16/2026 05 PM PDT 25.80 563 0 Normal
03/16/2026 06 PM PDT 25.79 559 - Normal
03/16/2026 07 PM PDT 25.79 559 0 Normal
03/16/2026 08 PM PDT 25.77 552 - Normal
03/16/2026 09 PM PDT 25.77 552 0 Normal
03/16/2026 10 PM PDT 25.77 552 0 Normal
03/16/2026 11 PM PDT 25.76 549 - Normal
03/17/2026 12 AM PDT 25.77 552 + Normal
03/17/2026 01 AM PDT 25.76 549 - Normal
03/17/2026 02 AM PDT 25.74 541 - Normal
03/17/2026 03 AM PDT 25.74 541 0 Normal
03/17/2026 04 AM PDT 25.73 538 - Normal
03/17/2026 05 AM PDT 25.72 534 - Normal
03/17/2026 06 AM PDT 25.72 534 0 Normal
03/17/2026 07 AM PDT 25.71 531 - Normal
03/17/2026 08 AM PDT 25.71 531 0 Normal
03/17/2026 09 AM PDT 25.71 531 0 Normal
03/17/2026 10 AM PDT 25.72 534 + Normal
03/17/2026 11 AM PDT 25.71 531 - Normal
03/17/2026 12 PM PDT 25.74 541 + Normal
03/17/2026 01 PM PDT 25.74 541 0 Normal
03/17/2026 02 PM PDT 25.73 538 - Normal
03/17/2026 03 PM PDT 25.73 538 0 Normal
03/17/2026 04 PM PDT 25.74 541 + Normal
03/17/2026 05 PM PDT 25.72 534 - Normal
03/17/2026 06 PM PDT 25.73 538 + Normal
03/17/2026 07 PM PDT 25.72 534 - Normal
03/17/2026 08 PM PDT 25.72 534 0 Normal
03/17/2026 09 PM PDT 25.72 534 0 Normal
03/17/2026 10 PM PDT 25.71 531 - Normal
03/17/2026 11 PM PDT 25.71 531 0 Normal
03/18/2026 12 AM PDT 25.70 527 - Normal
03/18/2026 01 AM PDT 25.71 531 + Normal
03/18/2026 02 AM PDT 25.70 527 - Normal
03/18/2026 03 AM PDT 25.69 524 - Normal
03/18/2026 04 AM PDT 25.69 524 0 Normal
03/18/2026 05 AM PDT 25.70 527 + Normal
03/18/2026 06 AM PDT 25.70 527 0 Normal
03/18/2026 07 AM PDT 25.71 531 + Normal
03/18/2026 08 AM PDT 25.70 527 - Normal
03/18/2026 09 AM PDT 25.70 527 0 Normal
03/18/2026 10 AM PDT 25.68 520 - Normal
03/18/2026 11 AM PDT 25.70 527 + Normal
03/18/2026 12 PM PDT 25.70 527 0 Normal
03/18/2026 01 PM PDT 25.70 527 0 Normal
03/18/2026 02 PM PDT 25.71 531 + Normal
03/18/2026 03 PM PDT 25.73 538 + Normal
03/18/2026 04 PM PDT 25.69 524 - Normal
03/18/2026 05 PM PDT 25.70 527 + Normal
03/18/2026 06 PM PDT 25.70 527 0 Normal
03/18/2026 07 PM PDT 25.69 524 - Normal
03/18/2026 08 PM PDT 25.68 520 - Normal
03/18/2026 09 PM PDT 25.69 524 + Normal
03/18/2026 10 PM PDT 25.68 520 - Normal
03/18/2026 11 PM PDT 25.68 520 0 Normal
03/19/2026 12 AM PDT 25.66 513 - Normal
03/19/2026 01 AM PDT 25.66 513 0 Normal
03/19/2026 02 AM PDT 25.65 510 - Normal
03/19/2026 03 AM PDT 25.65 510 0 Normal
03/19/2026 04 AM PDT 25.63 503 - Normal
03/19/2026 05 AM PDT 25.64 506 + Normal
03/19/2026 06 AM PDT 25.64 506 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/19/2026 07 AM PDT 25.63 503 Normal
03/19/2026 08 AM PDT 25.63 503 0 Normal
03/19/2026 09 AM PDT 25.63 503 0 Normal
03/19/2026 10 AM PDT 25.63 503 0 Normal
03/19/2026 11 AM PDT 25.62 499 - Normal
03/19/2026 12 PM PDT 25.62 499 0 Normal
03/19/2026 01 PM PDT 25.62 499 0 Normal
03/19/2026 02 PM PDT 25.61 496 - Normal
03/19/2026 03 PM PDT 25.61 496 0 Normal
03/19/2026 04 PM PDT 25.61 496 0 Normal
03/19/2026 05 PM PDT 25.61 496 0 Normal
03/19/2026 06 PM PDT 25.61 496 0 Normal
03/19/2026 07 PM PDT 25.60 492 - Normal
03/19/2026 08 PM PDT 25.60 492 0 Normal
03/19/2026 09 PM PDT 25.60 492 0 Normal
03/19/2026 10 PM PDT 25.60 492 0 Normal
03/19/2026 11 PM PDT 25.59 489 - Normal
03/20/2026 12 AM PDT 25.59 489 0 Normal
03/20/2026 01 AM PDT 25.59 489 0 Normal
03/20/2026 02 AM PDT 25.59 489 0 Normal
03/20/2026 03 AM PDT 25.59 489 0 Normal
03/20/2026 04 AM PDT 25.59 489 0 Normal
03/20/2026 05 AM PDT 25.58 486 - Normal
03/20/2026 06 AM PDT 25.58 486 0 Normal
03/20/2026 07 AM PDT 25.58 486 0 Normal
03/20/2026 08 AM PDT 25.58 486 0 Normal
03/20/2026 09 AM PDT 25.57 482 - Normal
03/20/2026 10 AM PDT 25.57 482 0 Normal
03/20/2026 11 AM PDT 25.57 482 0 Normal
03/20/2026 12 PM PDT 25.57 482 0 Normal
03/20/2026 01 PM PDT 25.57 482 0 Normal
03/20/2026 02 PM PDT 25.57 482 0 Normal
03/20/2026 03 PM PDT 25.56 479 - Normal
03/20/2026 04 PM PDT 25.56 479 0 Normal
03/20/2026 05 PM PDT 25.56 479 0 Normal
03/20/2026 06 PM PDT 25.56 479 0 Normal
03/20/2026 07 PM PDT 25.56 479 0 Normal
03/20/2026 08 PM PDT 25.55 475 - Normal
03/20/2026 09 PM PDT 25.55 475 0 Normal
03/20/2026 10 PM PDT 25.55 475 0 Normal
03/20/2026 11 PM PDT 25.55 475 0 Normal
03/21/2026 12 AM PDT 25.55 475 0 Normal
03/21/2026 01 AM PDT 25.55 475 0 Normal
03/21/2026 02 AM PDT 25.54 472 - Normal
03/21/2026 03 AM PDT 25.54 472 0 Normal
03/21/2026 04 AM PDT 25.54 472 0 Normal
03/21/2026 05 AM PDT 25.54 472 0 Normal
03/21/2026 06 AM PDT 25.54 472 0 Normal
03/21/2026 07 AM PDT 25.54 472 0 Normal
03/21/2026 08 AM PDT 25.53 469 - Normal
03/21/2026 09 AM PDT 25.53 469 0 Normal
03/21/2026 10 AM PDT 25.53 469 0 Normal
03/21/2026 11 AM PDT 25.53 469 0 Normal
03/21/2026 12 PM PDT 25.53 469 0 Normal
03/21/2026 01 PM PDT 25.53 469 0 Normal
03/21/2026 02 PM PDT 25.52 465 - Normal
03/21/2026 03 PM PDT 25.52 465 0 Normal
03/21/2026 04 PM PDT 25.52 465 0 Normal
03/21/2026 05 PM PDT 25.52 465 0 Normal
03/21/2026 06 PM PDT 25.52 465 0 Normal
03/21/2026 07 PM PDT 25.52 465 0 Normal
03/21/2026 08 PM PDT 25.52 465 0 Normal
03/21/2026 09 PM PDT 25.51 462 - Normal
03/21/2026 10 PM PDT 25.51 462 0 Normal
03/21/2026 11 PM PDT 25.51 462 0 Normal
03/22/2026 12 AM PDT 25.51 462 0 Normal
03/22/2026 01 AM PDT 25.51 462 0 Normal
03/22/2026 02 AM PDT 25.51 462 0 Normal
03/22/2026 03 AM PDT 25.51 462 0 Normal
03/22/2026 04 AM PDT 25.50 459 - Normal
03/22/2026 05 AM PDT 25.50 459 0 Normal
03/22/2026 06 AM PDT 25.50 459 0 Normal
03/22/2026 07 AM PDT 25.50 459 0 Normal
03/22/2026 08 AM PDT 25.50 459 0 Normal
03/22/2026 09 AM PDT 25.50 459 0 Normal
03/22/2026 10 AM PDT 25.50 459 0 Normal
03/22/2026 11 AM PDT 25.49 455 - Normal
03/22/2026 12 PM PDT 25.49 455 0 Normal
03/22/2026 01 PM PDT 25.49 455 0 Normal
03/22/2026 02 PM PDT 25.49 455 0 Normal
03/22/2026 03 PM PDT 25.49 455 0 Normal
03/22/2026 04 PM PDT 25.49 455 0 Normal
03/22/2026 05 PM PDT 25.49 455 0 Normal
03/22/2026 06 PM PDT 25.48 452 - Normal
03/22/2026 07 PM PDT 25.48 452 0 Normal
03/22/2026 08 PM PDT 25.48 452 0 Normal
03/22/2026 09 PM PDT 25.48 452 0 Normal
03/22/2026 10 PM PDT 25.48 452 0 Normal
03/22/2026 11 PM PDT 25.48 452 0 Normal
03/23/2026 12 AM PDT 25.48 452 0 Normal
03/23/2026 01 AM PDT 25.48 452 0 Normal
03/23/2026 02 AM PDT 25.47 449 - Normal
03/23/2026 03 AM PDT 25.47 449 0 Normal
03/23/2026 04 AM PDT 25.47 449 0 Normal
03/23/2026 05 AM PDT 25.47 449 0 Normal
03/23/2026 06 AM PDT 25.47 449 0 Normal
03/23/2026 07 AM PDT 25.47 449 0 Normal
03/23/2026 08 AM PDT 25.46 445 - Normal
03/23/2026 09 AM PDT 25.46 445 0 Normal
03/23/2026 10 AM PDT 25.46 445 0 Normal
03/23/2026 11 AM PDT 25.46 445 0 Normal
03/23/2026 12 PM PDT 25.46 445 0 Normal
03/23/2026 01 PM PDT 25.46 445 0 Normal
03/23/2026 02 PM PDT 25.46 445 0 Normal
03/23/2026 03 PM PDT 25.46 445 0 Normal
03/23/2026 04 PM PDT 25.45 442 - Normal
03/23/2026 05 PM PDT 25.45 442 0 Normal
03/23/2026 06 PM PDT 25.45 442 0 Normal
03/23/2026 07 PM PDT 25.45 442 0 Normal
03/23/2026 08 PM PDT 25.45 442 0 Normal
03/23/2026 09 PM PDT 25.45 442 0 Normal
03/23/2026 10 PM PDT 25.45 442 0 Normal
03/23/2026 11 PM PDT 25.45 442 0 Normal
03/24/2026 12 AM PDT 25.44 439 - Normal
03/24/2026 01 AM PDT 25.44 439 0 Normal
03/24/2026 02 AM PDT 25.44 439 0 Normal
03/24/2026 03 AM PDT 25.44 439 0 Normal
03/24/2026 04 AM PDT 25.44 439 0 Normal
03/24/2026 05 AM PDT 25.44 439 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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