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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: | May 07 2026 at 7:37 AM PDT | Next Issuance: | May 08 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: 05/07/2026 at 07:38 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/02/2026 at 04:00 PM PDT
# Maximum Observed Stage: 24.87 Feet
# Maximum Observed Flow: 252 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/11/2026 at 11:00 PM PDT
# Maximum Forecast Stage: 24.74 Feet
# Maximum Forecast Flow: 218 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/02/2026 07 AM PDT 24.85 246 Normal
05/02/2026 08 AM PDT 24.87 252 + Normal
05/02/2026 09 AM PDT 24.86 249 - Normal
05/02/2026 10 AM PDT 24.85 246 - Normal
05/02/2026 11 AM PDT 24.86 249 + Normal
05/02/2026 12 PM PDT 24.85 246 - Normal
05/02/2026 01 PM PDT 24.86 249 + Normal
05/02/2026 02 PM PDT 24.83 241 - Normal
05/02/2026 03 PM PDT 24.86 249 + Normal
05/02/2026 04 PM PDT 24.87 252 + Normal
05/02/2026 05 PM PDT 24.84 244 - Normal
05/02/2026 06 PM PDT 24.85 246 + Normal
05/02/2026 07 PM PDT 24.85 246 0 Normal
05/02/2026 08 PM PDT 24.84 244 - Normal
05/02/2026 09 PM PDT 24.84 244 0 Normal
05/02/2026 10 PM PDT 24.85 246 + Normal
05/02/2026 11 PM PDT 24.83 241 - Normal
05/03/2026 12 AM PDT 24.84 244 + Normal
05/03/2026 01 AM PDT 24.83 241 - Normal
05/03/2026 02 AM PDT 24.83 241 0 Normal
05/03/2026 03 AM PDT 24.84 244 + Normal
05/03/2026 04 AM PDT 24.82 238 - Normal
05/03/2026 05 AM PDT 24.84 244 + Normal
05/03/2026 06 AM PDT 24.83 241 - Normal
05/03/2026 07 AM PDT 24.83 241 0 Normal
05/03/2026 08 AM PDT 24.83 241 0 Normal
05/03/2026 09 AM PDT 24.82 238 - Normal
05/03/2026 10 AM PDT 24.83 241 + Normal
05/03/2026 11 AM PDT 24.82 238 - Normal
05/03/2026 12 PM PDT 24.82 238 0 Normal
05/03/2026 01 PM PDT 24.82 238 0 Normal
05/03/2026 02 PM PDT 24.83 241 + Normal
05/03/2026 03 PM PDT 24.84 244 + Normal
05/03/2026 04 PM PDT 24.82 238 - Normal
05/03/2026 05 PM PDT 24.83 241 + Normal
05/03/2026 06 PM PDT 24.83 241 0 Normal
05/03/2026 07 PM PDT 24.82 238 - Normal
05/03/2026 08 PM PDT 24.83 241 + Normal
05/03/2026 09 PM PDT 24.83 241 0 Normal
05/03/2026 10 PM PDT 24.82 238 - Normal
05/03/2026 11 PM PDT 24.83 241 + Normal
05/04/2026 12 AM PDT 24.83 241 0 Normal
05/04/2026 01 AM PDT 24.83 241 0 Normal
05/04/2026 02 AM PDT 24.82 238 - Normal
05/04/2026 03 AM PDT 24.82 238 0 Normal
05/04/2026 04 AM PDT 24.81 236 - Normal
05/04/2026 05 AM PDT 24.83 241 + Normal
05/04/2026 06 AM PDT 24.81 236 - Normal
05/04/2026 07 AM PDT 24.82 238 + Normal
05/04/2026 08 AM PDT 24.81 236 - Normal
05/04/2026 09 AM PDT 24.81 236 0 Normal
05/04/2026 10 AM PDT 24.82 238 + Normal
05/04/2026 11 AM PDT 24.82 238 0 Normal
05/04/2026 12 PM PDT 24.82 238 0 Normal
05/04/2026 01 PM PDT 24.81 236 - Normal
05/04/2026 02 PM PDT 24.81 236 0 Normal
05/04/2026 03 PM PDT 24.82 238 + Normal
05/04/2026 04 PM PDT 24.82 238 0 Normal
05/04/2026 05 PM PDT 24.82 238 0 Normal
05/04/2026 06 PM PDT 24.82 238 0 Normal
05/04/2026 07 PM PDT 24.81 236 - Normal
05/04/2026 08 PM PDT 24.81 236 0 Normal
05/04/2026 09 PM PDT 24.81 236 0 Normal
05/04/2026 10 PM PDT 24.82 238 + Normal
05/04/2026 11 PM PDT 24.82 238 0 Normal
05/05/2026 12 AM PDT 24.82 238 0 Normal
05/05/2026 01 AM PDT 24.80 233 - Normal
05/05/2026 02 AM PDT 24.82 238 + Normal
05/05/2026 03 AM PDT 24.81 236 - Normal
05/05/2026 04 AM PDT 24.80 233 - Normal
05/05/2026 05 AM PDT 24.81 236 + Normal
05/05/2026 06 AM PDT 24.82 238 + Normal
05/05/2026 07 AM PDT 24.82 238 0 Normal
05/05/2026 08 AM PDT 24.81 236 - Normal
05/05/2026 09 AM PDT 24.81 236 0 Normal
05/05/2026 10 AM PDT 24.82 238 + Normal
05/05/2026 11 AM PDT 24.82 238 0 Normal
05/05/2026 12 PM PDT 24.82 238 0 Normal
05/05/2026 01 PM PDT 24.82 238 0 Normal
05/05/2026 02 PM PDT 24.81 236 - Normal
05/05/2026 03 PM PDT 24.81 236 0 Normal
05/05/2026 04 PM PDT 24.83 241 + Normal
05/05/2026 05 PM PDT 24.81 236 - Normal
05/05/2026 06 PM PDT 24.81 236 0 Normal
05/05/2026 07 PM PDT 24.81 236 0 Normal
05/05/2026 08 PM PDT 24.81 236 0 Normal
05/05/2026 09 PM PDT 24.79 231 - Normal
05/05/2026 10 PM PDT 24.80 233 + Normal
05/05/2026 11 PM PDT 24.81 236 + Normal
05/06/2026 12 AM PDT 24.80 233 - Normal
05/06/2026 01 AM PDT 24.79 231 - Normal
05/06/2026 02 AM PDT 24.79 231 0 Normal
05/06/2026 03 AM PDT 24.80 233 + Normal
05/06/2026 04 AM PDT 24.80 233 0 Normal
05/06/2026 05 AM PDT 24.79 231 - Normal
05/06/2026 06 AM PDT 24.77 225 - Normal
05/06/2026 07 AM PDT 24.79 231 + Normal
05/06/2026 08 AM PDT 24.78 228 - Normal
05/06/2026 09 AM PDT 24.77 225 - Normal
05/06/2026 10 AM PDT 24.78 228 + Normal
05/06/2026 11 AM PDT 24.78 228 0 Normal
05/06/2026 12 PM PDT 24.79 231 + Normal
05/06/2026 01 PM PDT 24.78 228 - Normal
05/06/2026 02 PM PDT 24.78 228 0 Normal
05/06/2026 03 PM PDT 24.79 231 + Normal
05/06/2026 04 PM PDT 24.77 225 - Normal
05/06/2026 05 PM PDT 24.78 228 + Normal
05/06/2026 06 PM PDT 24.78 228 0 Normal
05/06/2026 07 PM PDT 24.76 223 - Normal
05/06/2026 08 PM PDT 24.76 223 0 Normal
05/06/2026 09 PM PDT 24.76 223 0 Normal
05/06/2026 10 PM PDT 24.76 223 0 Normal
05/06/2026 11 PM PDT 24.76 223 0 Normal
05/07/2026 12 AM PDT 24.76 223 0 Normal
05/07/2026 01 AM PDT 24.75 220 - Normal
05/07/2026 02 AM PDT 24.75 220 0 Normal
05/07/2026 03 AM PDT 24.75 220 0 Normal
05/07/2026 04 AM PDT 24.76 223 + Normal
05/07/2026 05 AM PDT 24.74 218 - Normal
05/07/2026 06 AM PDT 24.73 216 - Normal
05/07/2026 07 AM PDT 24.73 216 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/07/2026 08 AM PDT 24.73 216 Normal
05/07/2026 09 AM PDT 24.72 213 - Normal
05/07/2026 10 AM PDT 24.72 213 0 Normal
05/07/2026 11 AM PDT 24.72 213 0 Normal
05/07/2026 12 PM PDT 24.72 213 0 Normal
05/07/2026 01 PM PDT 24.72 213 0 Normal
05/07/2026 02 PM PDT 24.72 213 0 Normal
05/07/2026 03 PM PDT 24.72 213 0 Normal
05/07/2026 04 PM PDT 24.72 213 0 Normal
05/07/2026 05 PM PDT 24.73 216 + Normal
05/07/2026 06 PM PDT 24.72 213 - Normal
05/07/2026 07 PM PDT 24.72 213 0 Normal
05/07/2026 08 PM PDT 24.72 213 0 Normal
05/07/2026 09 PM PDT 24.72 213 0 Normal
05/07/2026 10 PM PDT 24.72 213 0 Normal
05/07/2026 11 PM PDT 24.72 213 0 Normal
05/08/2026 12 AM PDT 24.72 213 0 Normal
05/08/2026 01 AM PDT 24.72 213 0 Normal
05/08/2026 02 AM PDT 24.72 213 0 Normal
05/08/2026 03 AM PDT 24.72 213 0 Normal
05/08/2026 04 AM PDT 24.72 213 0 Normal
05/08/2026 05 AM PDT 24.71 211 - Normal
05/08/2026 06 AM PDT 24.71 211 0 Normal
05/08/2026 07 AM PDT 24.71 211 0 Normal
05/08/2026 08 AM PDT 24.71 211 0 Normal
05/08/2026 09 AM PDT 24.71 211 0 Normal
05/08/2026 10 AM PDT 24.71 211 0 Normal
05/08/2026 11 AM PDT 24.71 211 0 Normal
05/08/2026 12 PM PDT 24.71 211 0 Normal
05/08/2026 01 PM PDT 24.71 211 0 Normal
05/08/2026 02 PM PDT 24.71 211 0 Normal
05/08/2026 03 PM PDT 24.71 211 0 Normal
05/08/2026 04 PM PDT 24.70 208 - Normal
05/08/2026 05 PM PDT 24.70 208 0 Normal
05/08/2026 06 PM PDT 24.70 208 0 Normal
05/08/2026 07 PM PDT 24.70 208 0 Normal
05/08/2026 08 PM PDT 24.70 208 0 Normal
05/08/2026 09 PM PDT 24.70 208 0 Normal
05/08/2026 10 PM PDT 24.70 208 0 Normal
05/08/2026 11 PM PDT 24.70 208 0 Normal
05/09/2026 12 AM PDT 24.70 208 0 Normal
05/09/2026 01 AM PDT 24.70 208 0 Normal
05/09/2026 02 AM PDT 24.70 208 0 Normal
05/09/2026 03 AM PDT 24.70 208 0 Normal
05/09/2026 04 AM PDT 24.70 208 0 Normal
05/09/2026 05 AM PDT 24.69 206 - Normal
05/09/2026 06 AM PDT 24.69 206 0 Normal
05/09/2026 07 AM PDT 24.69 206 0 Normal
05/09/2026 08 AM PDT 24.69 206 0 Normal
05/09/2026 09 AM PDT 24.69 206 0 Normal
05/09/2026 10 AM PDT 24.69 206 0 Normal
05/09/2026 11 AM PDT 24.69 206 0 Normal
05/09/2026 12 PM PDT 24.69 206 0 Normal
05/09/2026 01 PM PDT 24.69 206 0 Normal
05/09/2026 02 PM PDT 24.69 206 0 Normal
05/09/2026 03 PM PDT 24.69 206 0 Normal
05/09/2026 04 PM PDT 24.68 203 - Normal
05/09/2026 05 PM PDT 24.68 203 0 Normal
05/09/2026 06 PM PDT 24.68 203 0 Normal
05/09/2026 07 PM PDT 24.68 203 0 Normal
05/09/2026 08 PM PDT 24.68 203 0 Normal
05/09/2026 09 PM PDT 24.68 203 0 Normal
05/09/2026 10 PM PDT 24.68 203 0 Normal
05/09/2026 11 PM PDT 24.68 203 0 Normal
05/10/2026 12 AM PDT 24.68 203 0 Normal
05/10/2026 01 AM PDT 24.68 203 0 Normal
05/10/2026 02 AM PDT 24.68 203 0 Normal
05/10/2026 03 AM PDT 24.68 203 0 Normal
05/10/2026 04 AM PDT 24.68 203 0 Normal
05/10/2026 05 AM PDT 24.68 203 0 Normal
05/10/2026 06 AM PDT 24.67 201 - Normal
05/10/2026 07 AM PDT 24.67 201 0 Normal
05/10/2026 08 AM PDT 24.67 201 0 Normal
05/10/2026 09 AM PDT 24.67 201 0 Normal
05/10/2026 10 AM PDT 24.67 201 0 Normal
05/10/2026 11 AM PDT 24.67 201 0 Normal
05/10/2026 12 PM PDT 24.67 201 0 Normal
05/10/2026 01 PM PDT 24.67 201 0 Normal
05/10/2026 02 PM PDT 24.67 201 0 Normal
05/10/2026 03 PM PDT 24.67 201 0 Normal
05/10/2026 04 PM PDT 24.67 201 0 Normal
05/10/2026 05 PM PDT 24.66 199 - Normal
05/10/2026 06 PM PDT 24.66 199 0 Normal
05/10/2026 07 PM PDT 24.66 199 0 Normal
05/10/2026 08 PM PDT 24.66 199 0 Normal
05/10/2026 09 PM PDT 24.66 199 0 Normal
05/10/2026 10 PM PDT 24.66 199 0 Normal
05/10/2026 11 PM PDT 24.66 199 0 Normal
05/11/2026 12 AM PDT 24.66 199 0 Normal
05/11/2026 01 AM PDT 24.66 199 0 Normal
05/11/2026 02 AM PDT 24.66 199 0 Normal
05/11/2026 03 AM PDT 24.66 199 0 Normal
05/11/2026 04 AM PDT 24.66 199 0 Normal
05/11/2026 05 AM PDT 24.66 199 0 Normal
05/11/2026 06 AM PDT 24.65 196 - Normal
05/11/2026 07 AM PDT 24.65 196 0 Normal
05/11/2026 08 AM PDT 24.65 196 0 Normal
05/11/2026 09 AM PDT 24.65 196 0 Normal
05/11/2026 10 AM PDT 24.65 196 0 Normal
05/11/2026 11 AM PDT 24.65 196 0 Normal
05/11/2026 12 PM PDT 24.65 196 0 Normal
05/11/2026 01 PM PDT 24.65 196 0 Normal
05/11/2026 02 PM PDT 24.65 196 0 Normal
05/11/2026 03 PM PDT 24.65 196 0 Normal
05/11/2026 04 PM PDT 24.65 196 0 Normal
05/11/2026 05 PM PDT 24.65 196 0 Normal
05/11/2026 06 PM PDT 24.66 199 + Normal
05/11/2026 07 PM PDT 24.68 203 + Normal
05/11/2026 08 PM PDT 24.70 208 + Normal
05/11/2026 09 PM PDT 24.72 213 + Normal
05/11/2026 10 PM PDT 24.73 216 + Normal
05/11/2026 11 PM PDT 24.74 218 + Normal
05/12/2026 12 AM PDT 24.74 218 0 Normal
05/12/2026 01 AM PDT 24.74 218 0 Normal
05/12/2026 02 AM PDT 24.72 213 - Normal
05/12/2026 03 AM PDT 24.71 211 - Normal
05/12/2026 04 AM PDT 24.70 208 - Normal
05/12/2026 05 AM PDT 24.68 203 - 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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