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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: | Jul 16 2026 at 7:18 AM PDT | Next Issuance: | Jul 17 2026 at 9:00 AM 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: 07/16/2026 at 07:19 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/11/2026 at 12:00 PM PDT
# Maximum Observed Stage: 24.16 Feet
# Maximum Observed Flow: 86 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/17/2026 at 02:00 PM PDT
# Maximum Forecast Stage: 24.18 Feet
# Maximum Forecast Flow: 89 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/11/2026 07 AM PDT 24.13 81 Normal
07/11/2026 08 AM PDT 24.14 83 + Normal
07/11/2026 09 AM PDT 24.14 83 0 Normal
07/11/2026 10 AM PDT 24.15 84 + Normal
07/11/2026 11 AM PDT 24.15 84 0 Normal
07/11/2026 12 PM PDT 24.16 86 + Normal
07/11/2026 01 PM PDT 24.15 84 - Normal
07/11/2026 02 PM PDT 24.14 83 - Normal
07/11/2026 03 PM PDT 24.14 83 0 Normal
07/11/2026 04 PM PDT 24.13 81 - Normal
07/11/2026 05 PM PDT 24.14 83 + Normal
07/11/2026 06 PM PDT 24.15 84 + Normal
07/11/2026 07 PM PDT 24.14 83 - Normal
07/11/2026 08 PM PDT 24.13 81 - Normal
07/11/2026 09 PM PDT 24.13 81 0 Normal
07/11/2026 10 PM PDT 24.13 81 0 Normal
07/11/2026 11 PM PDT 24.13 81 0 Normal
07/12/2026 12 AM PDT 24.12 79 - Normal
07/12/2026 01 AM PDT 24.13 81 + Normal
07/12/2026 02 AM PDT 24.13 81 0 Normal
07/12/2026 03 AM PDT 24.13 81 0 Normal
07/12/2026 04 AM PDT 24.13 81 0 Normal
07/12/2026 05 AM PDT 24.13 81 0 Normal
07/12/2026 06 AM PDT 24.12 79 - Normal
07/12/2026 07 AM PDT 24.12 79 0 Normal
07/12/2026 08 AM PDT 24.13 81 + Normal
07/12/2026 09 AM PDT 24.13 81 0 Normal
07/12/2026 10 AM PDT 24.13 81 0 Normal
07/12/2026 11 AM PDT 24.14 83 + Normal
07/12/2026 12 PM PDT 24.14 83 0 Normal
07/12/2026 01 PM PDT 24.14 83 0 Normal
07/12/2026 02 PM PDT 24.15 84 + Normal
07/12/2026 03 PM PDT 24.14 83 - Normal
07/12/2026 04 PM PDT 24.12 79 - Normal
07/12/2026 05 PM PDT 24.12 79 0 Normal
07/12/2026 06 PM PDT 24.12 79 0 Normal
07/12/2026 07 PM PDT 24.11 78 - Normal
07/12/2026 08 PM PDT 24.13 81 + Normal
07/12/2026 09 PM PDT 24.12 79 - Normal
07/12/2026 10 PM PDT 24.12 79 0 Normal
07/12/2026 11 PM PDT 24.13 81 + Normal
07/13/2026 12 AM PDT 24.12 79 - Normal
07/13/2026 01 AM PDT 24.12 79 0 Normal
07/13/2026 02 AM PDT 24.13 81 + Normal
07/13/2026 03 AM PDT 24.13 81 0 Normal
07/13/2026 04 AM PDT 24.13 81 0 Normal
07/13/2026 05 AM PDT 24.12 79 - Normal
07/13/2026 06 AM PDT 24.13 81 + Normal
07/13/2026 07 AM PDT 24.13 81 0 Normal
07/13/2026 08 AM PDT 24.15 84 + Normal
07/13/2026 09 AM PDT 24.12 79 - Normal
07/13/2026 10 AM PDT 24.12 79 0 Normal
07/13/2026 11 AM PDT 24.12 79 0 Normal
07/13/2026 12 PM PDT 24.13 81 + Normal
07/13/2026 01 PM PDT 24.13 81 0 Normal
07/13/2026 02 PM PDT 24.11 78 - Normal
07/13/2026 03 PM PDT 24.12 79 + Normal
07/13/2026 04 PM PDT 24.13 81 + Normal
07/13/2026 05 PM PDT 24.11 78 - Normal
07/13/2026 06 PM PDT 24.11 78 0 Normal
07/13/2026 07 PM PDT 24.14 83 + Normal
07/13/2026 08 PM PDT 24.12 79 - Normal
07/13/2026 09 PM PDT 24.12 79 0 Normal
07/13/2026 10 PM PDT 24.13 81 + Normal
07/13/2026 11 PM PDT 24.13 81 0 Normal
07/14/2026 12 AM PDT 24.13 81 0 Normal
07/14/2026 01 AM PDT 24.13 81 0 Normal
07/14/2026 02 AM PDT 24.14 83 + Normal
07/14/2026 03 AM PDT 24.14 83 0 Normal
07/14/2026 04 AM PDT 24.14 83 0 Normal
07/14/2026 05 AM PDT 24.14 83 0 Normal
07/14/2026 06 AM PDT 24.12 79 - Normal
07/14/2026 07 AM PDT 24.12 79 0 Normal
07/14/2026 08 AM PDT 24.12 79 0 Normal
07/14/2026 09 AM PDT 24.12 79 0 Normal
07/14/2026 10 AM PDT 24.13 81 + Normal
07/14/2026 11 AM PDT 24.12 79 - Normal
07/14/2026 12 PM PDT 24.11 78 - Normal
07/14/2026 01 PM PDT 24.11 78 0 Normal
07/14/2026 02 PM PDT 24.11 78 0 Normal
07/14/2026 03 PM PDT 24.10 77 - Normal
07/14/2026 04 PM PDT 24.10 77 0 Normal
07/14/2026 05 PM PDT 24.11 78 + Normal
07/14/2026 06 PM PDT 24.11 78 0 Normal
07/14/2026 07 PM PDT 24.10 77 - Normal
07/14/2026 08 PM PDT 24.10 77 0 Normal
07/14/2026 09 PM PDT 24.10 77 0 Normal
07/14/2026 10 PM PDT 24.10 77 0 Normal
07/14/2026 11 PM PDT 24.10 77 0 Normal
07/15/2026 12 AM PDT 24.11 78 + Normal
07/15/2026 01 AM PDT 24.10 77 - Normal
07/15/2026 02 AM PDT 24.10 77 0 Normal
07/15/2026 03 AM PDT 24.10 77 0 Normal
07/15/2026 04 AM PDT 24.10 77 0 Normal
07/15/2026 05 AM PDT 24.10 77 0 Normal
07/15/2026 06 AM PDT 24.12 79 + Normal
07/15/2026 07 AM PDT 24.13 81 + Normal
07/15/2026 08 AM PDT 24.13 81 0 Normal
07/15/2026 09 AM PDT 24.12 79 - Normal
07/15/2026 10 AM PDT 24.11 78 - Normal
07/15/2026 11 AM PDT 24.10 77 - Normal
07/15/2026 12 PM PDT 24.11 78 + Normal
07/15/2026 01 PM PDT 24.12 79 + Normal
07/15/2026 02 PM PDT 24.12 79 0 Normal
07/15/2026 03 PM PDT 24.12 79 0 Normal
07/15/2026 04 PM PDT 24.12 79 0 Normal
07/15/2026 05 PM PDT 24.11 78 - Normal
07/15/2026 06 PM PDT 24.11 78 0 Normal
07/15/2026 07 PM PDT 24.11 78 0 Normal
07/15/2026 08 PM PDT 24.11 78 0 Normal
07/15/2026 09 PM PDT 24.11 78 0 Normal
07/15/2026 10 PM PDT 24.11 78 0 Normal
07/15/2026 11 PM PDT 24.12 79 + Normal
07/16/2026 12 AM PDT 24.12 79 0 Normal
07/16/2026 01 AM PDT 24.12 79 0 Normal
07/16/2026 02 AM PDT 24.11 78 - Normal
07/16/2026 03 AM PDT 24.12 79 + Normal
07/16/2026 04 AM PDT 24.12 79 0 Normal
07/16/2026 05 AM PDT 24.12 79 0 Normal
07/16/2026 06 AM PDT 24.12 79 0 Normal
07/16/2026 07 AM PDT 24.11 78 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/16/2026 08 AM PDT 24.11 78 Normal
07/16/2026 09 AM PDT 24.11 78 0 Normal
07/16/2026 10 AM PDT 24.11 78 0 Normal
07/16/2026 11 AM PDT 24.10 77 - Normal
07/16/2026 12 PM PDT 24.10 77 0 Normal
07/16/2026 01 PM PDT 24.10 77 0 Normal
07/16/2026 02 PM PDT 24.10 77 0 Normal
07/16/2026 03 PM PDT 24.11 78 + Normal
07/16/2026 04 PM PDT 24.11 78 0 Normal
07/16/2026 05 PM PDT 24.11 78 0 Normal
07/16/2026 06 PM PDT 24.11 78 0 Normal
07/16/2026 07 PM PDT 24.12 79 + Normal
07/16/2026 08 PM PDT 24.12 79 0 Normal
07/16/2026 09 PM PDT 24.13 81 + Normal
07/16/2026 10 PM PDT 24.13 81 0 Normal
07/16/2026 11 PM PDT 24.14 83 + Normal
07/17/2026 12 AM PDT 24.14 83 0 Normal
07/17/2026 01 AM PDT 24.15 84 + Normal
07/17/2026 02 AM PDT 24.15 84 0 Normal
07/17/2026 03 AM PDT 24.15 84 0 Normal
07/17/2026 04 AM PDT 24.16 86 + Normal
07/17/2026 05 AM PDT 24.16 86 0 Normal
07/17/2026 06 AM PDT 24.16 86 0 Normal
07/17/2026 07 AM PDT 24.16 86 0 Normal
07/17/2026 08 AM PDT 24.17 87 + Normal
07/17/2026 09 AM PDT 24.17 87 0 Normal
07/17/2026 10 AM PDT 24.17 87 0 Normal
07/17/2026 11 AM PDT 24.17 87 0 Normal
07/17/2026 12 PM PDT 24.17 87 0 Normal
07/17/2026 01 PM PDT 24.17 87 0 Normal
07/17/2026 02 PM PDT 24.18 89 + Normal
07/17/2026 03 PM PDT 24.18 89 0 Normal
07/17/2026 04 PM PDT 24.18 89 0 Normal
07/17/2026 05 PM PDT 24.18 89 0 Normal
07/17/2026 06 PM PDT 24.18 89 0 Normal
07/17/2026 07 PM PDT 24.18 89 0 Normal
07/17/2026 08 PM PDT 24.18 89 0 Normal
07/17/2026 09 PM PDT 24.18 89 0 Normal
07/17/2026 10 PM PDT 24.18 89 0 Normal
07/17/2026 11 PM PDT 24.18 89 0 Normal
07/18/2026 12 AM PDT 24.18 89 0 Normal
07/18/2026 01 AM PDT 24.18 89 0 Normal
07/18/2026 02 AM PDT 24.18 89 0 Normal
07/18/2026 03 AM PDT 24.18 89 0 Normal
07/18/2026 04 AM PDT 24.18 89 0 Normal
07/18/2026 05 AM PDT 24.18 89 0 Normal
07/18/2026 06 AM PDT 24.18 89 0 Normal
07/18/2026 07 AM PDT 24.18 89 0 Normal
07/18/2026 08 AM PDT 24.18 89 0 Normal
07/18/2026 09 AM PDT 24.18 89 0 Normal
07/18/2026 10 AM PDT 24.18 89 0 Normal
07/18/2026 11 AM PDT 24.18 89 0 Normal
07/18/2026 12 PM PDT 24.18 89 0 Normal
07/18/2026 01 PM PDT 24.18 89 0 Normal
07/18/2026 02 PM PDT 24.18 89 0 Normal
07/18/2026 03 PM PDT 24.17 87 - Normal
07/18/2026 04 PM PDT 24.17 87 0 Normal
07/18/2026 05 PM PDT 24.17 87 0 Normal
07/18/2026 06 PM PDT 24.17 87 0 Normal
07/18/2026 07 PM PDT 24.17 87 0 Normal
07/18/2026 08 PM PDT 24.17 87 0 Normal
07/18/2026 09 PM PDT 24.17 87 0 Normal
07/18/2026 10 PM PDT 24.17 87 0 Normal
07/18/2026 11 PM PDT 24.17 87 0 Normal
07/19/2026 12 AM PDT 24.17 87 0 Normal
07/19/2026 01 AM PDT 24.17 87 0 Normal
07/19/2026 02 AM PDT 24.17 87 0 Normal
07/19/2026 03 AM PDT 24.17 87 0 Normal
07/19/2026 04 AM PDT 24.17 87 0 Normal
07/19/2026 05 AM PDT 24.17 87 0 Normal
07/19/2026 06 AM PDT 24.17 87 0 Normal
07/19/2026 07 AM PDT 24.17 87 0 Normal
07/19/2026 08 AM PDT 24.17 87 0 Normal
07/19/2026 09 AM PDT 24.17 87 0 Normal
07/19/2026 10 AM PDT 24.17 87 0 Normal
07/19/2026 11 AM PDT 24.17 87 0 Normal
07/19/2026 12 PM PDT 24.17 87 0 Normal
07/19/2026 01 PM PDT 24.17 87 0 Normal
07/19/2026 02 PM PDT 24.17 87 0 Normal
07/19/2026 03 PM PDT 24.17 87 0 Normal
07/19/2026 04 PM PDT 24.17 87 0 Normal
07/19/2026 05 PM PDT 24.17 87 0 Normal
07/19/2026 06 PM PDT 24.17 87 0 Normal
07/19/2026 07 PM PDT 24.17 87 0 Normal
07/19/2026 08 PM PDT 24.17 87 0 Normal
07/19/2026 09 PM PDT 24.17 87 0 Normal
07/19/2026 10 PM PDT 24.17 87 0 Normal
07/19/2026 11 PM PDT 24.17 87 0 Normal
07/20/2026 12 AM PDT 24.17 87 0 Normal
07/20/2026 01 AM PDT 24.17 87 0 Normal
07/20/2026 02 AM PDT 24.17 87 0 Normal
07/20/2026 03 AM PDT 24.17 87 0 Normal
07/20/2026 04 AM PDT 24.17 87 0 Normal
07/20/2026 05 AM PDT 24.17 87 0 Normal
07/20/2026 06 AM PDT 24.16 86 - Normal
07/20/2026 07 AM PDT 24.16 86 0 Normal
07/20/2026 08 AM PDT 24.16 86 0 Normal
07/20/2026 09 AM PDT 24.16 86 0 Normal
07/20/2026 10 AM PDT 24.16 86 0 Normal
07/20/2026 11 AM PDT 24.16 86 0 Normal
07/20/2026 12 PM PDT 24.16 86 0 Normal
07/20/2026 01 PM PDT 24.16 86 0 Normal
07/20/2026 02 PM PDT 24.16 86 0 Normal
07/20/2026 03 PM PDT 24.16 86 0 Normal
07/20/2026 04 PM PDT 24.16 86 0 Normal
07/20/2026 05 PM PDT 24.16 86 0 Normal
07/20/2026 06 PM PDT 24.16 86 0 Normal
07/20/2026 07 PM PDT 24.16 86 0 Normal
07/20/2026 08 PM PDT 24.16 86 0 Normal
07/20/2026 09 PM PDT 24.16 86 0 Normal
07/20/2026 10 PM PDT 24.16 86 0 Normal
07/20/2026 11 PM PDT 24.16 86 0 Normal
07/21/2026 12 AM PDT 24.16 86 0 Normal
07/21/2026 01 AM PDT 24.16 86 0 Normal
07/21/2026 02 AM PDT 24.16 86 0 Normal
07/21/2026 03 AM PDT 24.16 86 0 Normal
07/21/2026 04 AM PDT 24.16 86 0 Normal
07/21/2026 05 AM PDT 24.16 86 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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