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RUSSIAN RIVER - HOPLAND (HOPC1)
| Latitude: 39.03º N | Longitude: 123.13º W | Elevation: 498 Feet | | Forecast Type: Official Location |
| Location: Mendocino County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Oct 21 2026 at 7:24 AM PDT | Next Issuance: | Oct 22 2026 at 9:00 AM PDT
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| Action: N/A | Minor Flood: 15.0 Feet | Moderate Flood: 23.0 Feet | Major Flood: 26.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Russian River - Hopland (HOPC1)
#
# File Generation Time: 10/21/2026 at 07:24 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 10/21/2026 at 03:00 AM PDT
# Maximum Observed Stage: 1.28 Feet
# Maximum Observed Flow: 223 cfs
#
# Earliest Date & Time of Maximum Forecast: 10/22/2026 at 12:00 PM PDT
# Maximum Forecast Stage: 1.36 Feet
# Maximum Forecast Flow: 239 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
10/16/2026 07 AM PDT 1.15 198 Normal
10/16/2026 08 AM PDT 1.16 200 + Normal
10/16/2026 09 AM PDT 1.15 198 - Normal
10/16/2026 10 AM PDT 1.15 198 0 Normal
10/16/2026 11 AM PDT 1.15 198 0 Normal
10/16/2026 12 PM PDT 1.15 198 0 Normal
10/16/2026 01 PM PDT 1.14 196 - Normal
10/16/2026 02 PM PDT 1.14 196 0 Normal
10/16/2026 03 PM PDT 1.14 196 0 Normal
10/16/2026 04 PM PDT 1.14 196 0 Normal
10/16/2026 05 PM PDT 1.14 196 0 Normal
10/16/2026 06 PM PDT 1.14 196 0 Normal
10/16/2026 07 PM PDT 1.14 196 0 Normal
10/16/2026 08 PM PDT 1.14 196 0 Normal
10/16/2026 09 PM PDT 1.15 198 + Normal
10/16/2026 10 PM PDT 1.18 204 + Normal
10/16/2026 11 PM PDT 1.20 207 + Normal
10/17/2026 12 AM PDT 1.22 211 + Normal
10/17/2026 01 AM PDT 1.22 211 0 Normal
10/17/2026 02 AM PDT 1.22 211 0 Normal
10/17/2026 03 AM PDT 1.21 209 - Normal
10/17/2026 04 AM PDT 1.21 209 0 Normal
10/17/2026 05 AM PDT 1.22 211 + Normal
10/17/2026 06 AM PDT 1.22 211 0 Normal
10/17/2026 07 AM PDT 1.22 211 0 Normal
10/17/2026 08 AM PDT 1.22 211 0 Normal
10/17/2026 09 AM PDT 1.22 211 0 Normal
10/17/2026 10 AM PDT 1.22 211 0 Normal
10/17/2026 11 AM PDT 1.22 211 0 Normal
10/17/2026 12 PM PDT 1.21 209 - Normal
10/17/2026 01 PM PDT 1.21 209 0 Normal
10/17/2026 02 PM PDT 1.21 209 0 Normal
10/17/2026 03 PM PDT 1.21 209 0 Normal
10/17/2026 04 PM PDT 1.21 209 0 Normal
10/17/2026 05 PM PDT 1.21 209 0 Normal
10/17/2026 06 PM PDT 1.22 211 + Normal
10/17/2026 07 PM PDT 1.21 209 - Normal
10/17/2026 08 PM PDT 1.22 211 + Normal
10/17/2026 09 PM PDT 1.22 211 0 Normal
10/17/2026 10 PM PDT 1.22 211 0 Normal
10/17/2026 11 PM PDT 1.23 213 + Normal
10/18/2026 12 AM PDT 1.23 213 0 Normal
10/18/2026 01 AM PDT 1.23 213 0 Normal
10/18/2026 02 AM PDT 1.23 213 0 Normal
10/18/2026 03 AM PDT 1.23 213 0 Normal
10/18/2026 04 AM PDT 1.22 211 - Normal
10/18/2026 05 AM PDT 1.22 211 0 Normal
10/18/2026 06 AM PDT 1.22 211 0 Normal
10/18/2026 07 AM PDT 1.22 211 0 Normal
10/18/2026 08 AM PDT 1.22 211 0 Normal
10/18/2026 09 AM PDT 1.23 213 + Normal
10/18/2026 10 AM PDT 1.22 211 - Normal
10/18/2026 11 AM PDT 1.23 213 + Normal
10/18/2026 12 PM PDT 1.23 213 0 Normal
10/18/2026 01 PM PDT 1.22 211 - Normal
10/18/2026 02 PM PDT 1.22 211 0 Normal
10/18/2026 03 PM PDT 1.22 211 0 Normal
10/18/2026 04 PM PDT 1.22 211 0 Normal
10/18/2026 05 PM PDT 1.23 213 + Normal
10/18/2026 06 PM PDT 1.23 213 0 Normal
10/18/2026 07 PM PDT 1.23 213 0 Normal
10/18/2026 08 PM PDT 1.23 213 0 Normal
10/18/2026 09 PM PDT 1.23 213 0 Normal
10/18/2026 10 PM PDT 1.23 213 0 Normal
10/18/2026 11 PM PDT 1.24 215 + Normal
10/19/2026 12 AM PDT 1.24 215 0 Normal
10/19/2026 01 AM PDT 1.25 217 + Normal
10/19/2026 02 AM PDT 1.24 215 - Normal
10/19/2026 03 AM PDT 1.25 217 + Normal
10/19/2026 04 AM PDT 1.25 217 0 Normal
10/19/2026 05 AM PDT 1.24 215 - Normal
10/19/2026 06 AM PDT 1.25 217 + Normal
10/19/2026 07 AM PDT 1.25 217 0 Normal
10/19/2026 08 AM PDT 1.25 217 0 Normal
10/19/2026 09 AM PDT 1.25 217 0 Normal
10/19/2026 10 AM PDT 1.24 215 - Normal
10/19/2026 11 AM PDT 1.24 215 0 Normal
10/19/2026 12 PM PDT 1.23 213 - Normal
10/19/2026 01 PM PDT 1.22 211 - Normal
10/19/2026 02 PM PDT 1.21 209 - Normal
10/19/2026 03 PM PDT 1.21 209 0 Normal
10/19/2026 04 PM PDT 1.21 209 0 Normal
10/19/2026 05 PM PDT 1.21 209 0 Normal
10/19/2026 06 PM PDT 1.21 209 0 Normal
10/19/2026 07 PM PDT 1.22 211 + Normal
10/19/2026 08 PM PDT 1.22 211 0 Normal
10/19/2026 09 PM PDT 1.22 211 0 Normal
10/19/2026 10 PM PDT 1.23 213 + Normal
10/19/2026 11 PM PDT 1.22 211 - Normal
10/20/2026 12 AM PDT 1.22 211 0 Normal
10/20/2026 01 AM PDT 1.22 211 0 Normal
10/20/2026 02 AM PDT 1.22 211 0 Normal
10/20/2026 03 AM PDT 1.22 211 0 Normal
10/20/2026 04 AM PDT 1.21 209 - Normal
10/20/2026 05 AM PDT 1.22 211 + Normal
10/20/2026 06 AM PDT 1.22 211 0 Normal
10/20/2026 07 AM PDT 1.22 211 0 Normal
10/20/2026 08 AM PDT 1.23 213 + Normal
10/20/2026 09 AM PDT 1.23 213 0 Normal
10/20/2026 10 AM PDT 1.23 213 0 Normal
10/20/2026 11 AM PDT 1.23 213 0 Normal
10/20/2026 12 PM PDT 1.23 213 0 Normal
10/20/2026 01 PM PDT 1.23 213 0 Normal
10/20/2026 02 PM PDT 1.22 211 - Normal
10/20/2026 03 PM PDT 1.21 209 - Normal
10/20/2026 04 PM PDT 1.21 209 0 Normal
10/20/2026 05 PM PDT 1.23 213 + Normal
10/20/2026 06 PM PDT 1.24 215 + Normal
10/20/2026 07 PM PDT 1.25 217 + Normal
10/20/2026 08 PM PDT 1.26 219 + Normal
10/20/2026 09 PM PDT 1.26 219 0 Normal
10/20/2026 10 PM PDT 1.27 221 + Normal
10/20/2026 11 PM PDT 1.28 223 + Normal
10/21/2026 12 AM PDT 1.28 223 0 Normal
10/21/2026 01 AM PDT 1.28 223 0 Normal
10/21/2026 02 AM PDT 1.28 223 0 Normal
10/21/2026 03 AM PDT 1.28 223 0 Normal
10/21/2026 04 AM PDT 1.27 221 - Normal
10/21/2026 05 AM PDT 1.27 221 0 Normal
10/21/2026 06 AM PDT 1.27 221 0 Normal
10/21/2026 07 AM PDT 1.27 221 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
10/21/2026 08 AM PDT 1.27 221 Normal
10/21/2026 09 AM PDT 1.27 221 0 Normal
10/21/2026 10 AM PDT 1.27 221 0 Normal
10/21/2026 11 AM PDT 1.27 221 0 Normal
10/21/2026 12 PM PDT 1.27 221 0 Normal
10/21/2026 01 PM PDT 1.27 221 0 Normal
10/21/2026 02 PM PDT 1.27 221 0 Normal
10/21/2026 03 PM PDT 1.27 221 0 Normal
10/21/2026 04 PM PDT 1.27 221 0 Normal
10/21/2026 05 PM PDT 1.27 221 0 Normal
10/21/2026 06 PM PDT 1.27 221 0 Normal
10/21/2026 07 PM PDT 1.27 221 0 Normal
10/21/2026 08 PM PDT 1.27 221 0 Normal
10/21/2026 09 PM PDT 1.27 221 0 Normal
10/21/2026 10 PM PDT 1.27 221 0 Normal
10/21/2026 11 PM PDT 1.27 221 0 Normal
10/22/2026 12 AM PDT 1.27 221 0 Normal
10/22/2026 01 AM PDT 1.27 221 0 Normal
10/22/2026 02 AM PDT 1.27 221 0 Normal
10/22/2026 03 AM PDT 1.28 223 + Normal
10/22/2026 04 AM PDT 1.29 225 + Normal
10/22/2026 05 AM PDT 1.30 227 + Normal
10/22/2026 06 AM PDT 1.31 229 + Normal
10/22/2026 07 AM PDT 1.32 231 + Normal
10/22/2026 08 AM PDT 1.33 233 + Normal
10/22/2026 09 AM PDT 1.33 233 0 Normal
10/22/2026 10 AM PDT 1.34 235 + Normal
10/22/2026 11 AM PDT 1.35 237 + Normal
10/22/2026 12 PM PDT 1.36 239 + Normal
10/22/2026 01 PM PDT 1.36 239 0 Normal
10/22/2026 02 PM PDT 1.36 239 0 Normal
10/22/2026 03 PM PDT 1.36 239 0 Normal
10/22/2026 04 PM PDT 1.36 239 0 Normal
10/22/2026 05 PM PDT 1.35 237 - Normal
10/22/2026 06 PM PDT 1.35 237 0 Normal
10/22/2026 07 PM PDT 1.34 235 - Normal
10/22/2026 08 PM PDT 1.34 235 0 Normal
10/22/2026 09 PM PDT 1.33 233 - Normal
10/22/2026 10 PM PDT 1.33 233 0 Normal
10/22/2026 11 PM PDT 1.32 231 - Normal
10/23/2026 12 AM PDT 1.32 231 0 Normal
10/23/2026 01 AM PDT 1.31 229 - Normal
10/23/2026 02 AM PDT 1.31 229 0 Normal
10/23/2026 03 AM PDT 1.30 227 - Normal
10/23/2026 04 AM PDT 1.30 227 0 Normal
10/23/2026 05 AM PDT 1.29 225 - Normal
10/23/2026 06 AM PDT 1.29 225 0 Normal
10/23/2026 07 AM PDT 1.29 225 0 Normal
10/23/2026 08 AM PDT 1.28 223 - Normal
10/23/2026 09 AM PDT 1.28 223 0 Normal
10/23/2026 10 AM PDT 1.28 223 0 Normal
10/23/2026 11 AM PDT 1.28 223 0 Normal
10/23/2026 12 PM PDT 1.28 223 0 Normal
10/23/2026 01 PM PDT 1.28 223 0 Normal
10/23/2026 02 PM PDT 1.27 221 - Normal
10/23/2026 03 PM PDT 1.27 221 0 Normal
10/23/2026 04 PM PDT 1.27 221 0 Normal
10/23/2026 05 PM PDT 1.27 221 0 Normal
10/23/2026 06 PM PDT 1.27 221 0 Normal
10/23/2026 07 PM PDT 1.27 221 0 Normal
10/23/2026 08 PM PDT 1.27 221 0 Normal
10/23/2026 09 PM PDT 1.27 221 0 Normal
10/23/2026 10 PM PDT 1.27 221 0 Normal
10/23/2026 11 PM PDT 1.27 221 0 Normal
10/24/2026 12 AM PDT 1.27 221 0 Normal
10/24/2026 01 AM PDT 1.27 221 0 Normal
10/24/2026 02 AM PDT 1.27 221 0 Normal
10/24/2026 03 AM PDT 1.27 221 0 Normal
10/24/2026 04 AM PDT 1.27 221 0 Normal
10/24/2026 05 AM PDT 1.27 221 0 Normal
10/24/2026 06 AM PDT 1.27 221 0 Normal
10/24/2026 07 AM PDT 1.27 221 0 Normal
10/24/2026 08 AM PDT 1.27 221 0 Normal
10/24/2026 09 AM PDT 1.27 221 0 Normal
10/24/2026 10 AM PDT 1.27 221 0 Normal
10/24/2026 11 AM PDT 1.27 221 0 Normal
10/24/2026 12 PM PDT 1.27 221 0 Normal
10/24/2026 01 PM PDT 1.27 221 0 Normal
10/24/2026 02 PM PDT 1.27 221 0 Normal
10/24/2026 03 PM PDT 1.27 221 0 Normal
10/24/2026 04 PM PDT 1.27 221 0 Normal
10/24/2026 05 PM PDT 1.27 221 0 Normal
10/24/2026 06 PM PDT 1.27 221 0 Normal
10/24/2026 07 PM PDT 1.27 221 0 Normal
10/24/2026 08 PM PDT 1.27 221 0 Normal
10/24/2026 09 PM PDT 1.27 221 0 Normal
10/24/2026 10 PM PDT 1.27 221 0 Normal
10/24/2026 11 PM PDT 1.27 221 0 Normal
10/25/2026 12 AM PDT 1.27 221 0 Normal
10/25/2026 01 AM PDT 1.27 221 0 Normal
10/25/2026 02 AM PDT 1.27 221 0 Normal
10/25/2026 03 AM PDT 1.27 221 0 Normal
10/25/2026 04 AM PDT 1.27 221 0 Normal
10/25/2026 05 AM PDT 1.27 221 0 Normal
10/25/2026 06 AM PDT 1.27 221 0 Normal
10/25/2026 07 AM PDT 1.27 221 0 Normal
10/25/2026 08 AM PDT 1.27 221 0 Normal
10/25/2026 09 AM PDT 1.27 221 0 Normal
10/25/2026 10 AM PDT 1.27 221 0 Normal
10/25/2026 11 AM PDT 1.27 221 0 Normal
10/25/2026 12 PM PDT 1.27 221 0 Normal
10/25/2026 01 PM PDT 1.27 221 0 Normal
10/25/2026 02 PM PDT 1.27 221 0 Normal
10/25/2026 03 PM PDT 1.27 221 0 Normal
10/25/2026 04 PM PDT 1.27 221 0 Normal
10/25/2026 05 PM PDT 1.27 221 0 Normal
10/25/2026 06 PM PDT 1.27 221 0 Normal
10/25/2026 07 PM PDT 1.27 221 0 Normal
10/25/2026 08 PM PDT 1.27 221 0 Normal
10/25/2026 09 PM PDT 1.27 221 0 Normal
10/25/2026 10 PM PDT 1.27 221 0 Normal
10/25/2026 11 PM PDT 1.27 221 0 Normal
10/26/2026 12 AM PDT 1.27 221 0 Normal
10/26/2026 01 AM PDT 1.27 221 0 Normal
10/26/2026 02 AM PDT 1.27 221 0 Normal
10/26/2026 03 AM PDT 1.27 221 0 Normal
10/26/2026 04 AM PDT 1.27 221 0 Normal
10/26/2026 05 AM PDT 1.27 221 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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