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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 23 2026 at 7:28 AM PDT | Next Issuance: | Jul 24 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: 07/23/2026 at 07:29 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/21/2026 at 09:00 AM PDT
# Maximum Observed Stage: 24.23 Feet
# Maximum Observed Flow: 95 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/24/2026 at 12:00 AM PDT
# Maximum Forecast Stage: 24.18 Feet
# Maximum Forecast Flow: 86 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/18/2026 07 AM PDT 24.16 83 Normal
07/18/2026 08 AM PDT 24.16 83 0 Normal
07/18/2026 09 AM PDT 24.16 83 0 Normal
07/18/2026 10 AM PDT 24.17 84 + Normal
07/18/2026 11 AM PDT 24.18 86 + Normal
07/18/2026 12 PM PDT 24.19 88 + Normal
07/18/2026 01 PM PDT 24.19 88 0 Normal
07/18/2026 02 PM PDT 24.20 90 + Normal
07/18/2026 03 PM PDT 24.21 91 + Normal
07/18/2026 04 PM PDT 24.21 91 0 Normal
07/18/2026 05 PM PDT 24.20 90 - Normal
07/18/2026 06 PM PDT 24.20 90 0 Normal
07/18/2026 07 PM PDT 24.19 88 - Normal
07/18/2026 08 PM PDT 24.20 90 + Normal
07/18/2026 09 PM PDT 24.20 90 0 Normal
07/18/2026 10 PM PDT 24.20 90 0 Normal
07/18/2026 11 PM PDT 24.20 90 0 Normal
07/19/2026 12 AM PDT 24.21 91 + Normal
07/19/2026 01 AM PDT 24.20 90 - Normal
07/19/2026 02 AM PDT 24.21 91 + Normal
07/19/2026 03 AM PDT 24.21 91 0 Normal
07/19/2026 04 AM PDT 24.21 91 0 Normal
07/19/2026 05 AM PDT 24.21 91 0 Normal
07/19/2026 06 AM PDT 24.21 91 0 Normal
07/19/2026 07 AM PDT 24.21 91 0 Normal
07/19/2026 08 AM PDT 24.21 91 0 Normal
07/19/2026 09 AM PDT 24.22 93 + Normal
07/19/2026 10 AM PDT 24.22 93 0 Normal
07/19/2026 11 AM PDT 24.22 93 0 Normal
07/19/2026 12 PM PDT 24.22 93 0 Normal
07/19/2026 01 PM PDT 24.23 95 + Normal
07/19/2026 02 PM PDT 24.23 95 0 Normal
07/19/2026 03 PM PDT 24.23 95 0 Normal
07/19/2026 04 PM PDT 24.23 95 0 Normal
07/19/2026 05 PM PDT 24.22 93 - Normal
07/19/2026 06 PM PDT 24.23 95 + Normal
07/19/2026 07 PM PDT 24.22 93 - Normal
07/19/2026 08 PM PDT 24.22 93 0 Normal
07/19/2026 09 PM PDT 24.21 91 - Normal
07/19/2026 10 PM PDT 24.22 93 + Normal
07/19/2026 11 PM PDT 24.22 93 0 Normal
07/20/2026 12 AM PDT 24.22 93 0 Normal
07/20/2026 01 AM PDT 24.22 93 0 Normal
07/20/2026 02 AM PDT 24.22 93 0 Normal
07/20/2026 03 AM PDT 24.22 93 0 Normal
07/20/2026 04 AM PDT 24.22 93 0 Normal
07/20/2026 05 AM PDT 24.22 93 0 Normal
07/20/2026 06 AM PDT 24.22 93 0 Normal
07/20/2026 07 AM PDT 24.22 93 0 Normal
07/20/2026 08 AM PDT 24.22 93 0 Normal
07/20/2026 09 AM PDT 24.21 91 - Normal
07/20/2026 10 AM PDT 24.22 93 + Normal
07/20/2026 11 AM PDT 24.22 93 0 Normal
07/20/2026 12 PM PDT 24.22 93 0 Normal
07/20/2026 01 PM PDT 24.21 91 - Normal
07/20/2026 02 PM PDT 24.22 93 + Normal
07/20/2026 03 PM PDT 24.21 91 - Normal
07/20/2026 04 PM PDT 24.22 93 + Normal
07/20/2026 05 PM PDT 24.23 95 + Normal
07/20/2026 06 PM PDT 24.22 93 - Normal
07/20/2026 07 PM PDT 24.22 93 0 Normal
07/20/2026 08 PM PDT 24.22 93 0 Normal
07/20/2026 09 PM PDT 24.22 93 0 Normal
07/20/2026 10 PM PDT 24.23 95 + Normal
07/20/2026 11 PM PDT 24.23 95 0 Normal
07/21/2026 12 AM PDT 24.22 93 - Normal
07/21/2026 01 AM PDT 24.23 95 + Normal
07/21/2026 02 AM PDT 24.23 95 0 Normal
07/21/2026 03 AM PDT 24.23 95 0 Normal
07/21/2026 04 AM PDT 24.23 95 0 Normal
07/21/2026 05 AM PDT 24.23 95 0 Normal
07/21/2026 06 AM PDT 24.23 95 0 Normal
07/21/2026 07 AM PDT 24.22 93 - Normal
07/21/2026 08 AM PDT 24.23 95 + Normal
07/21/2026 09 AM PDT 24.23 95 0 Normal
07/21/2026 10 AM PDT 24.22 93 - Normal
07/21/2026 11 AM PDT 24.22 93 0 Normal
07/21/2026 12 PM PDT 24.22 93 0 Normal
07/21/2026 01 PM PDT 24.22 93 0 Normal
07/21/2026 02 PM PDT 24.22 93 0 Normal
07/21/2026 03 PM PDT 24.22 93 0 Normal
07/21/2026 04 PM PDT 24.21 91 - Normal
07/21/2026 05 PM PDT 24.20 90 - Normal
07/21/2026 06 PM PDT 24.18 86 - Normal
07/21/2026 07 PM PDT 24.19 88 + Normal
07/21/2026 08 PM PDT 24.19 88 0 Normal
07/21/2026 09 PM PDT 24.18 86 - Normal
07/21/2026 10 PM PDT 24.17 84 - Normal
07/21/2026 11 PM PDT 24.18 86 + Normal
07/22/2026 12 AM PDT 24.17 84 - Normal
07/22/2026 01 AM PDT 24.17 84 0 Normal
07/22/2026 02 AM PDT 24.17 84 0 Normal
07/22/2026 03 AM PDT 24.17 84 0 Normal
07/22/2026 04 AM PDT 24.16 83 - Normal
07/22/2026 05 AM PDT 24.16 83 0 Normal
07/22/2026 06 AM PDT 24.15 81 - Normal
07/22/2026 07 AM PDT 24.15 81 0 Normal
07/22/2026 08 AM PDT 24.16 83 + Normal
07/22/2026 09 AM PDT 24.16 83 0 Normal
07/22/2026 10 AM PDT 24.15 81 - Normal
07/22/2026 11 AM PDT 24.16 83 + Normal
07/22/2026 12 PM PDT 24.16 83 0 Normal
07/22/2026 01 PM PDT 24.16 83 0 Normal
07/22/2026 02 PM PDT 24.16 83 0 Normal
07/22/2026 03 PM PDT 24.16 83 0 Normal
07/22/2026 04 PM PDT 24.16 83 0 Normal
07/22/2026 05 PM PDT 24.17 84 + Normal
07/22/2026 06 PM PDT 24.16 83 - Normal
07/22/2026 07 PM PDT 24.17 84 + Normal
07/22/2026 08 PM PDT 24.15 81 - Normal
07/22/2026 09 PM PDT 24.15 81 0 Normal
07/22/2026 10 PM PDT 24.15 81 0 Normal
07/22/2026 11 PM PDT 24.16 83 + Normal
07/23/2026 12 AM PDT 24.16 83 0 Normal
07/23/2026 01 AM PDT 24.16 83 0 Normal
07/23/2026 02 AM PDT 24.16 83 0 Normal
07/23/2026 03 AM PDT 24.16 83 0 Normal
07/23/2026 04 AM PDT 24.16 83 0 Normal
07/23/2026 05 AM PDT 24.16 83 0 Normal
07/23/2026 06 AM PDT 24.16 83 0 Normal
07/23/2026 07 AM PDT 24.16 83 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/23/2026 08 AM PDT 24.16 83 Normal
07/23/2026 09 AM PDT 24.15 81 - Normal
07/23/2026 10 AM PDT 24.15 81 0 Normal
07/23/2026 11 AM PDT 24.15 81 0 Normal
07/23/2026 12 PM PDT 24.16 83 + Normal
07/23/2026 01 PM PDT 24.16 83 0 Normal
07/23/2026 02 PM PDT 24.16 83 0 Normal
07/23/2026 03 PM PDT 24.16 83 0 Normal
07/23/2026 04 PM PDT 24.16 83 0 Normal
07/23/2026 05 PM PDT 24.16 83 0 Normal
07/23/2026 06 PM PDT 24.16 83 0 Normal
07/23/2026 07 PM PDT 24.17 84 + Normal
07/23/2026 08 PM PDT 24.17 84 0 Normal
07/23/2026 09 PM PDT 24.17 84 0 Normal
07/23/2026 10 PM PDT 24.17 84 0 Normal
07/23/2026 11 PM PDT 24.17 84 0 Normal
07/24/2026 12 AM PDT 24.18 86 + Normal
07/24/2026 01 AM PDT 24.18 86 0 Normal
07/24/2026 02 AM PDT 24.18 86 0 Normal
07/24/2026 03 AM PDT 24.18 86 0 Normal
07/24/2026 04 AM PDT 24.18 86 0 Normal
07/24/2026 05 AM PDT 24.18 86 0 Normal
07/24/2026 06 AM PDT 24.18 86 0 Normal
07/24/2026 07 AM PDT 24.18 86 0 Normal
07/24/2026 08 AM PDT 24.18 86 0 Normal
07/24/2026 09 AM PDT 24.18 86 0 Normal
07/24/2026 10 AM PDT 24.18 86 0 Normal
07/24/2026 11 AM PDT 24.18 86 0 Normal
07/24/2026 12 PM PDT 24.18 86 0 Normal
07/24/2026 01 PM PDT 24.18 86 0 Normal
07/24/2026 02 PM PDT 24.18 86 0 Normal
07/24/2026 03 PM PDT 24.18 86 0 Normal
07/24/2026 04 PM PDT 24.18 86 0 Normal
07/24/2026 05 PM PDT 24.18 86 0 Normal
07/24/2026 06 PM PDT 24.18 86 0 Normal
07/24/2026 07 PM PDT 24.18 86 0 Normal
07/24/2026 08 PM PDT 24.18 86 0 Normal
07/24/2026 09 PM PDT 24.18 86 0 Normal
07/24/2026 10 PM PDT 24.18 86 0 Normal
07/24/2026 11 PM PDT 24.18 86 0 Normal
07/25/2026 12 AM PDT 24.18 86 0 Normal
07/25/2026 01 AM PDT 24.18 86 0 Normal
07/25/2026 02 AM PDT 24.18 86 0 Normal
07/25/2026 03 AM PDT 24.18 86 0 Normal
07/25/2026 04 AM PDT 24.18 86 0 Normal
07/25/2026 05 AM PDT 24.18 86 0 Normal
07/25/2026 06 AM PDT 24.18 86 0 Normal
07/25/2026 07 AM PDT 24.18 86 0 Normal
07/25/2026 08 AM PDT 24.18 86 0 Normal
07/25/2026 09 AM PDT 24.18 86 0 Normal
07/25/2026 10 AM PDT 24.18 86 0 Normal
07/25/2026 11 AM PDT 24.18 86 0 Normal
07/25/2026 12 PM PDT 24.18 86 0 Normal
07/25/2026 01 PM PDT 24.18 86 0 Normal
07/25/2026 02 PM PDT 24.18 86 0 Normal
07/25/2026 03 PM PDT 24.18 86 0 Normal
07/25/2026 04 PM PDT 24.18 86 0 Normal
07/25/2026 05 PM PDT 24.18 86 0 Normal
07/25/2026 06 PM PDT 24.18 86 0 Normal
07/25/2026 07 PM PDT 24.18 86 0 Normal
07/25/2026 08 PM PDT 24.18 86 0 Normal
07/25/2026 09 PM PDT 24.18 86 0 Normal
07/25/2026 10 PM PDT 24.18 86 0 Normal
07/25/2026 11 PM PDT 24.18 86 0 Normal
07/26/2026 12 AM PDT 24.18 86 0 Normal
07/26/2026 01 AM PDT 24.18 86 0 Normal
07/26/2026 02 AM PDT 24.18 86 0 Normal
07/26/2026 03 AM PDT 24.18 86 0 Normal
07/26/2026 04 AM PDT 24.18 86 0 Normal
07/26/2026 05 AM PDT 24.18 86 0 Normal
07/26/2026 06 AM PDT 24.18 86 0 Normal
07/26/2026 07 AM PDT 24.18 86 0 Normal
07/26/2026 08 AM PDT 24.18 86 0 Normal
07/26/2026 09 AM PDT 24.18 86 0 Normal
07/26/2026 10 AM PDT 24.18 86 0 Normal
07/26/2026 11 AM PDT 24.18 86 0 Normal
07/26/2026 12 PM PDT 24.18 86 0 Normal
07/26/2026 01 PM PDT 24.18 86 0 Normal
07/26/2026 02 PM PDT 24.18 86 0 Normal
07/26/2026 03 PM PDT 24.18 86 0 Normal
07/26/2026 04 PM PDT 24.18 86 0 Normal
07/26/2026 05 PM PDT 24.18 86 0 Normal
07/26/2026 06 PM PDT 24.18 86 0 Normal
07/26/2026 07 PM PDT 24.18 86 0 Normal
07/26/2026 08 PM PDT 24.18 86 0 Normal
07/26/2026 09 PM PDT 24.18 86 0 Normal
07/26/2026 10 PM PDT 24.18 86 0 Normal
07/26/2026 11 PM PDT 24.18 86 0 Normal
07/27/2026 12 AM PDT 24.18 86 0 Normal
07/27/2026 01 AM PDT 24.18 86 0 Normal
07/27/2026 02 AM PDT 24.18 86 0 Normal
07/27/2026 03 AM PDT 24.18 86 0 Normal
07/27/2026 04 AM PDT 24.18 86 0 Normal
07/27/2026 05 AM PDT 24.18 86 0 Normal
07/27/2026 06 AM PDT 24.18 86 0 Normal
07/27/2026 07 AM PDT 24.18 86 0 Normal
07/27/2026 08 AM PDT 24.18 86 0 Normal
07/27/2026 09 AM PDT 24.18 86 0 Normal
07/27/2026 10 AM PDT 24.18 86 0 Normal
07/27/2026 11 AM PDT 24.18 86 0 Normal
07/27/2026 12 PM PDT 24.18 86 0 Normal
07/27/2026 01 PM PDT 24.18 86 0 Normal
07/27/2026 02 PM PDT 24.18 86 0 Normal
07/27/2026 03 PM PDT 24.18 86 0 Normal
07/27/2026 04 PM PDT 24.18 86 0 Normal
07/27/2026 05 PM PDT 24.18 86 0 Normal
07/27/2026 06 PM PDT 24.18 86 0 Normal
07/27/2026 07 PM PDT 24.18 86 0 Normal
07/27/2026 08 PM PDT 24.18 86 0 Normal
07/27/2026 09 PM PDT 24.18 86 0 Normal
07/27/2026 10 PM PDT 24.18 86 0 Normal
07/27/2026 11 PM PDT 24.18 86 0 Normal
07/28/2026 12 AM PDT 24.18 86 0 Normal
07/28/2026 01 AM PDT 24.18 86 0 Normal
07/28/2026 02 AM PDT 24.18 86 0 Normal
07/28/2026 03 AM PDT 24.18 86 0 Normal
07/28/2026 04 AM PDT 24.18 86 0 Normal
07/28/2026 05 AM PDT 24.18 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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