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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: | Sep 20 2026 at 7:49 AM PDT | Next Issuance: | Sep 21 2026 at 9:00 AM PDT
| |
| 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: 09/20/2026 at 07:49 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 09/16/2026 at 06:00 AM PDT
# Maximum Observed Stage: 0.73 Feet
# Maximum Observed Flow: 123 cfs
#
# Earliest Date & Time of Maximum Forecast: 09/23/2026 at 06:00 PM PDT
# Maximum Forecast Stage: 0.71 Feet
# Maximum Forecast Flow: 120 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
09/15/2026 07 AM PDT 0.72 121 Normal
09/15/2026 08 AM PDT 0.72 121 0 Normal
09/15/2026 09 AM PDT 0.70 118 - Normal
09/15/2026 10 AM PDT 0.69 116 - Normal
09/15/2026 11 AM PDT 0.69 116 0 Normal
09/15/2026 12 PM PDT 0.69 116 0 Normal
09/15/2026 01 PM PDT 0.68 115 - Normal
09/15/2026 02 PM PDT 0.66 112 - Normal
09/15/2026 03 PM PDT 0.64 108 - Normal
09/15/2026 04 PM PDT 0.63 107 - Normal
09/15/2026 05 PM PDT 0.64 108 + Normal
09/15/2026 06 PM PDT 0.66 112 + Normal
09/15/2026 07 PM PDT 0.68 115 + Normal
09/15/2026 08 PM PDT 0.69 116 + Normal
09/15/2026 09 PM PDT 0.69 116 0 Normal
09/15/2026 10 PM PDT 0.70 118 + Normal
09/15/2026 11 PM PDT 0.70 118 0 Normal
09/16/2026 12 AM PDT 0.70 118 0 Normal
09/16/2026 01 AM PDT 0.71 120 + Normal
09/16/2026 02 AM PDT 0.71 120 0 Normal
09/16/2026 03 AM PDT 0.72 121 + Normal
09/16/2026 04 AM PDT 0.72 121 0 Normal
09/16/2026 05 AM PDT 0.72 121 0 Normal
09/16/2026 06 AM PDT 0.73 123 + Normal
09/16/2026 07 AM PDT 0.72 121 - Normal
09/16/2026 08 AM PDT 0.72 121 0 Normal
09/16/2026 09 AM PDT 0.72 121 0 Normal
09/16/2026 10 AM PDT 0.71 120 - Normal
09/16/2026 11 AM PDT 0.70 118 - Normal
09/16/2026 12 PM PDT 0.70 118 0 Normal
09/16/2026 01 PM PDT 0.69 116 - Normal
09/16/2026 02 PM PDT 0.69 116 0 Normal
09/16/2026 03 PM PDT 0.69 116 0 Normal
09/16/2026 04 PM PDT 0.69 116 0 Normal
09/16/2026 05 PM PDT 0.69 116 0 Normal
09/16/2026 06 PM PDT 0.69 116 0 Normal
09/16/2026 07 PM PDT 0.68 115 - Normal
09/16/2026 08 PM PDT 0.68 115 0 Normal
09/16/2026 09 PM PDT 0.69 116 + Normal
09/16/2026 10 PM PDT 0.69 116 0 Normal
09/16/2026 11 PM PDT 0.70 118 + Normal
09/17/2026 12 AM PDT 0.71 120 + Normal
09/17/2026 01 AM PDT 0.71 120 0 Normal
09/17/2026 02 AM PDT 0.71 120 0 Normal
09/17/2026 03 AM PDT 0.71 120 0 Normal
09/17/2026 04 AM PDT 0.72 121 + Normal
09/17/2026 05 AM PDT 0.72 121 0 Normal
09/17/2026 06 AM PDT 0.71 120 - Normal
09/17/2026 07 AM PDT 0.71 120 0 Normal
09/17/2026 08 AM PDT 0.71 120 0 Normal
09/17/2026 09 AM PDT 0.71 120 0 Normal
09/17/2026 10 AM PDT 0.71 120 0 Normal
09/17/2026 11 AM PDT 0.71 120 0 Normal
09/17/2026 12 PM PDT 0.70 118 - Normal
09/17/2026 01 PM PDT 0.70 118 0 Normal
09/17/2026 02 PM PDT 0.69 116 - Normal
09/17/2026 03 PM PDT 0.69 116 0 Normal
09/17/2026 04 PM PDT 0.69 116 0 Normal
09/17/2026 05 PM PDT 0.68 115 - Normal
09/17/2026 06 PM PDT 0.68 115 0 Normal
09/17/2026 07 PM PDT 0.68 115 0 Normal
09/17/2026 08 PM PDT 0.68 115 0 Normal
09/17/2026 09 PM PDT 0.68 115 0 Normal
09/17/2026 10 PM PDT 0.68 115 0 Normal
09/17/2026 11 PM PDT 0.69 116 + Normal
09/18/2026 12 AM PDT 0.69 116 0 Normal
09/18/2026 01 AM PDT 0.69 116 0 Normal
09/18/2026 02 AM PDT 0.69 116 0 Normal
09/18/2026 03 AM PDT 0.70 118 + Normal
09/18/2026 04 AM PDT 0.70 118 0 Normal
09/18/2026 05 AM PDT 0.70 118 0 Normal
09/18/2026 06 AM PDT 0.70 118 0 Normal
09/18/2026 07 AM PDT 0.70 118 0 Normal
09/18/2026 08 AM PDT 0.70 118 0 Normal
09/18/2026 09 AM PDT 0.70 118 0 Normal
09/18/2026 10 AM PDT 0.70 118 0 Normal
09/18/2026 11 AM PDT 0.69 116 - Normal
09/18/2026 12 PM PDT 0.69 116 0 Normal
09/18/2026 01 PM PDT 0.69 116 0 Normal
09/18/2026 02 PM PDT 0.68 115 - Normal
09/18/2026 03 PM PDT 0.68 115 0 Normal
09/18/2026 04 PM PDT 0.68 115 0 Normal
09/18/2026 05 PM PDT 0.68 115 0 Normal
09/18/2026 06 PM PDT 0.68 115 0 Normal
09/18/2026 07 PM PDT 0.68 115 0 Normal
09/18/2026 08 PM PDT 0.68 115 0 Normal
09/18/2026 09 PM PDT 0.68 115 0 Normal
09/18/2026 10 PM PDT 0.69 116 + Normal
09/18/2026 11 PM PDT 0.69 116 0 Normal
09/19/2026 12 AM PDT 0.69 116 0 Normal
09/19/2026 01 AM PDT 0.70 118 + Normal
09/19/2026 02 AM PDT 0.70 118 0 Normal
09/19/2026 03 AM PDT 0.70 118 0 Normal
09/19/2026 04 AM PDT 0.71 120 + Normal
09/19/2026 05 AM PDT 0.71 120 0 Normal
09/19/2026 06 AM PDT 0.70 118 - Normal
09/19/2026 07 AM PDT 0.70 118 0 Normal
09/19/2026 08 AM PDT 0.71 120 + Normal
09/19/2026 09 AM PDT 0.70 118 - Normal
09/19/2026 10 AM PDT 0.70 118 0 Normal
09/19/2026 11 AM PDT 0.70 118 0 Normal
09/19/2026 12 PM PDT 0.70 118 0 Normal
09/19/2026 01 PM PDT 0.69 116 - Normal
09/19/2026 02 PM PDT 0.69 116 0 Normal
09/19/2026 03 PM PDT 0.68 115 - Normal
09/19/2026 04 PM PDT 0.68 115 0 Normal
09/19/2026 05 PM PDT 0.67 113 - Normal
09/19/2026 06 PM PDT 0.66 112 - Normal
09/19/2026 07 PM PDT 0.66 112 0 Normal
09/19/2026 08 PM PDT 0.66 112 0 Normal
09/19/2026 09 PM PDT 0.66 112 0 Normal
09/19/2026 10 PM PDT 0.67 113 + Normal
09/19/2026 11 PM PDT 0.67 113 0 Normal
09/20/2026 12 AM PDT 0.68 115 + Normal
09/20/2026 01 AM PDT 0.69 116 + Normal
09/20/2026 02 AM PDT 0.70 118 + Normal
09/20/2026 03 AM PDT 0.70 118 0 Normal
09/20/2026 04 AM PDT 0.70 118 0 Normal
09/20/2026 05 AM PDT 0.70 118 0 Normal
09/20/2026 06 AM PDT 0.70 118 0 Normal
09/20/2026 07 AM PDT 0.70 118 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
09/20/2026 08 AM PDT 0.70 118 Normal
09/20/2026 09 AM PDT 0.70 118 0 Normal
09/20/2026 10 AM PDT 0.70 118 0 Normal
09/20/2026 11 AM PDT 0.70 118 0 Normal
09/20/2026 12 PM PDT 0.70 118 0 Normal
09/20/2026 01 PM PDT 0.70 118 0 Normal
09/20/2026 02 PM PDT 0.70 118 0 Normal
09/20/2026 03 PM PDT 0.70 118 0 Normal
09/20/2026 04 PM PDT 0.70 118 0 Normal
09/20/2026 05 PM PDT 0.70 118 0 Normal
09/20/2026 06 PM PDT 0.70 118 0 Normal
09/20/2026 07 PM PDT 0.70 118 0 Normal
09/20/2026 08 PM PDT 0.70 118 0 Normal
09/20/2026 09 PM PDT 0.70 118 0 Normal
09/20/2026 10 PM PDT 0.70 118 0 Normal
09/20/2026 11 PM PDT 0.70 118 0 Normal
09/21/2026 12 AM PDT 0.70 118 0 Normal
09/21/2026 01 AM PDT 0.70 118 0 Normal
09/21/2026 02 AM PDT 0.70 118 0 Normal
09/21/2026 03 AM PDT 0.70 118 0 Normal
09/21/2026 04 AM PDT 0.70 118 0 Normal
09/21/2026 05 AM PDT 0.70 118 0 Normal
09/21/2026 06 AM PDT 0.70 118 0 Normal
09/21/2026 07 AM PDT 0.70 118 0 Normal
09/21/2026 08 AM PDT 0.70 118 0 Normal
09/21/2026 09 AM PDT 0.70 118 0 Normal
09/21/2026 10 AM PDT 0.70 118 0 Normal
09/21/2026 11 AM PDT 0.70 118 0 Normal
09/21/2026 12 PM PDT 0.70 118 0 Normal
09/21/2026 01 PM PDT 0.70 118 0 Normal
09/21/2026 02 PM PDT 0.70 118 0 Normal
09/21/2026 03 PM PDT 0.70 118 0 Normal
09/21/2026 04 PM PDT 0.70 118 0 Normal
09/21/2026 05 PM PDT 0.70 118 0 Normal
09/21/2026 06 PM PDT 0.70 118 0 Normal
09/21/2026 07 PM PDT 0.70 118 0 Normal
09/21/2026 08 PM PDT 0.70 118 0 Normal
09/21/2026 09 PM PDT 0.70 118 0 Normal
09/21/2026 10 PM PDT 0.70 118 0 Normal
09/21/2026 11 PM PDT 0.70 118 0 Normal
09/22/2026 12 AM PDT 0.70 118 0 Normal
09/22/2026 01 AM PDT 0.70 118 0 Normal
09/22/2026 02 AM PDT 0.70 118 0 Normal
09/22/2026 03 AM PDT 0.70 118 0 Normal
09/22/2026 04 AM PDT 0.70 118 0 Normal
09/22/2026 05 AM PDT 0.70 118 0 Normal
09/22/2026 06 AM PDT 0.70 118 0 Normal
09/22/2026 07 AM PDT 0.70 118 0 Normal
09/22/2026 08 AM PDT 0.70 118 0 Normal
09/22/2026 09 AM PDT 0.70 118 0 Normal
09/22/2026 10 AM PDT 0.70 118 0 Normal
09/22/2026 11 AM PDT 0.70 118 0 Normal
09/22/2026 12 PM PDT 0.70 118 0 Normal
09/22/2026 01 PM PDT 0.70 118 0 Normal
09/22/2026 02 PM PDT 0.70 118 0 Normal
09/22/2026 03 PM PDT 0.70 118 0 Normal
09/22/2026 04 PM PDT 0.70 118 0 Normal
09/22/2026 05 PM PDT 0.70 118 0 Normal
09/22/2026 06 PM PDT 0.70 118 0 Normal
09/22/2026 07 PM PDT 0.70 118 0 Normal
09/22/2026 08 PM PDT 0.70 118 0 Normal
09/22/2026 09 PM PDT 0.70 118 0 Normal
09/22/2026 10 PM PDT 0.70 118 0 Normal
09/22/2026 11 PM PDT 0.70 118 0 Normal
09/23/2026 12 AM PDT 0.70 118 0 Normal
09/23/2026 01 AM PDT 0.70 118 0 Normal
09/23/2026 02 AM PDT 0.70 118 0 Normal
09/23/2026 03 AM PDT 0.70 118 0 Normal
09/23/2026 04 AM PDT 0.70 118 0 Normal
09/23/2026 05 AM PDT 0.70 118 0 Normal
09/23/2026 06 AM PDT 0.70 118 0 Normal
09/23/2026 07 AM PDT 0.70 118 0 Normal
09/23/2026 08 AM PDT 0.70 118 0 Normal
09/23/2026 09 AM PDT 0.70 118 0 Normal
09/23/2026 10 AM PDT 0.70 118 0 Normal
09/23/2026 11 AM PDT 0.70 118 0 Normal
09/23/2026 12 PM PDT 0.70 118 0 Normal
09/23/2026 01 PM PDT 0.70 118 0 Normal
09/23/2026 02 PM PDT 0.70 118 0 Normal
09/23/2026 03 PM PDT 0.70 118 0 Normal
09/23/2026 04 PM PDT 0.70 118 0 Normal
09/23/2026 05 PM PDT 0.70 118 0 Normal
09/23/2026 06 PM PDT 0.71 120 + Normal
09/23/2026 07 PM PDT 0.71 120 0 Normal
09/23/2026 08 PM PDT 0.71 120 0 Normal
09/23/2026 09 PM PDT 0.71 120 0 Normal
09/23/2026 10 PM PDT 0.71 120 0 Normal
09/23/2026 11 PM PDT 0.71 120 0 Normal
09/24/2026 12 AM PDT 0.71 120 0 Normal
09/24/2026 01 AM PDT 0.71 120 0 Normal
09/24/2026 02 AM PDT 0.71 120 0 Normal
09/24/2026 03 AM PDT 0.71 120 0 Normal
09/24/2026 04 AM PDT 0.71 120 0 Normal
09/24/2026 05 AM PDT 0.71 120 0 Normal
09/24/2026 06 AM PDT 0.71 120 0 Normal
09/24/2026 07 AM PDT 0.71 120 0 Normal
09/24/2026 08 AM PDT 0.71 120 0 Normal
09/24/2026 09 AM PDT 0.71 120 0 Normal
09/24/2026 10 AM PDT 0.71 120 0 Normal
09/24/2026 11 AM PDT 0.71 120 0 Normal
09/24/2026 12 PM PDT 0.71 120 0 Normal
09/24/2026 01 PM PDT 0.71 120 0 Normal
09/24/2026 02 PM PDT 0.71 120 0 Normal
09/24/2026 03 PM PDT 0.71 120 0 Normal
09/24/2026 04 PM PDT 0.71 120 0 Normal
09/24/2026 05 PM PDT 0.71 120 0 Normal
09/24/2026 06 PM PDT 0.71 120 0 Normal
09/24/2026 07 PM PDT 0.71 120 0 Normal
09/24/2026 08 PM PDT 0.71 120 0 Normal
09/24/2026 09 PM PDT 0.71 120 0 Normal
09/24/2026 10 PM PDT 0.71 120 0 Normal
09/24/2026 11 PM PDT 0.71 120 0 Normal
09/25/2026 12 AM PDT 0.71 120 0 Normal
09/25/2026 01 AM PDT 0.71 120 0 Normal
09/25/2026 02 AM PDT 0.71 120 0 Normal
09/25/2026 03 AM PDT 0.71 120 0 Normal
09/25/2026 04 AM PDT 0.71 120 0 Normal
09/25/2026 05 AM PDT 0.71 120 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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