National Weather Service California-Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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RUSSIAN RIVER - HOPLAND (HOPC1)
Latitude: 39.03º NLongitude: 123.13º WElevation: 498 FeetForecast Type: Official Location
Location: Mendocino County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Nov 05 2026 at 12:42 PM PSTNext Issuance: Nov 06 2026 at 9:00 AM PST
Action: N/A Minor Flood: 15.0 FeetModerate Flood: 23.0 FeetMajor Flood: 26.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Russian River - Hopland (HOPC1)
#
# File Generation Time:  11/05/2026 at 12:42 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/01/2026 at 08:00 AM PST
# Maximum Observed Stage:                       1.21 Feet
# Maximum Observed Flow:                        198 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/05/2026 at 06:00 PM PST
# Maximum Forecast Stage:                       0.89 Feet
# Maximum Forecast Flow:                        140 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/31/2026 01 PM PDT            1.19            194                        Normal
  10/31/2026 02 PM PDT            1.19            194         0              Normal
  10/31/2026 03 PM PDT            1.19            194         0              Normal
  10/31/2026 04 PM PDT            1.19            194         0              Normal
  10/31/2026 05 PM PDT            1.19            194         0              Normal
  10/31/2026 06 PM PDT            1.19            194         0              Normal
  10/31/2026 07 PM PDT            1.19            194         0              Normal
  10/31/2026 08 PM PDT            1.19            194         0              Normal
  10/31/2026 09 PM PDT            1.19            194         0              Normal
  10/31/2026 10 PM PDT            1.19            194         0              Normal
  10/31/2026 11 PM PDT            1.19            194         0              Normal
  11/01/2026 12 AM PDT            1.19            194         0              Normal
  11/01/2026 01 AM PDT            1.19            194         0              Normal
  11/01/2026 01 AM PST            1.20            196         +              Normal
  11/01/2026 02 AM PST            1.20            196         0              Normal
  11/01/2026 03 AM PST            1.20            196         0              Normal
  11/01/2026 04 AM PST            1.20            196         0              Normal
  11/01/2026 05 AM PST            1.20            196         0              Normal
  11/01/2026 06 AM PST            1.20            196         0              Normal
  11/01/2026 07 AM PST            1.20            196         0              Normal
  11/01/2026 08 AM PST            1.21            198         +              Normal
  11/01/2026 09 AM PST            1.20            196         -              Normal
  11/01/2026 10 AM PST            1.20            196         0              Normal
  11/01/2026 11 AM PST            1.20            196         0              Normal
  11/01/2026 12 PM PST            1.20            196         0              Normal
  11/01/2026 01 PM PST            1.20            196         0              Normal
  11/01/2026 02 PM PST            1.18            192         -              Normal
  11/01/2026 03 PM PST            1.16            188         -              Normal
  11/01/2026 04 PM PST            1.14            185         -              Normal
  11/01/2026 05 PM PST            1.14            185         0              Normal
  11/01/2026 06 PM PST            1.14            185         0              Normal
  11/01/2026 07 PM PST            1.13            183         -              Normal
  11/01/2026 08 PM PST            1.14            185         +              Normal
  11/01/2026 09 PM PST            1.13            183         -              Normal
  11/01/2026 10 PM PST            1.14            185         +              Normal
  11/01/2026 11 PM PST            1.14            185         0              Normal
  11/02/2026 12 AM PST            1.13            183         -              Normal
  11/02/2026 01 AM PST            1.12            181         -              Normal
  11/02/2026 02 AM PST            1.10            177         -              Normal
  11/02/2026 03 AM PST            1.10            177         0              Normal
  11/02/2026 04 AM PST            1.10            177         0              Normal
  11/02/2026 05 AM PST            1.09            175         -              Normal
  11/02/2026 06 AM PST            1.11            179         +              Normal
  11/02/2026 07 AM PST            1.10            177         -              Normal
  11/02/2026 08 AM PST            1.10            177         0              Normal
  11/02/2026 09 AM PST            1.10            177         0              Normal
  11/02/2026 10 AM PST            1.10            177         0              Normal
  11/02/2026 11 AM PST            1.10            177         0              Normal
  11/02/2026 12 PM PST            1.09            175         -              Normal
  11/02/2026 01 PM PST            1.08            173         -              Normal
  11/02/2026 02 PM PST            1.06            170         -              Normal
  11/02/2026 03 PM PST            1.05            168         -              Normal
  11/02/2026 04 PM PST            1.04            166         -              Normal
  11/02/2026 05 PM PST            1.04            166         0              Normal
  11/02/2026 06 PM PST            1.04            166         0              Normal
  11/02/2026 07 PM PST            1.04            166         0              Normal
  11/02/2026 08 PM PST            1.04            166         0              Normal
  11/02/2026 09 PM PST            1.04            166         0              Normal
  11/02/2026 10 PM PST            1.04            166         0              Normal
  11/02/2026 11 PM PST            1.04            166         0              Normal
  11/03/2026 12 AM PST            1.04            166         0              Normal
  11/03/2026 01 AM PST            1.04            166         0              Normal
  11/03/2026 02 AM PST            1.02            163         -              Normal
  11/03/2026 03 AM PST            1.00            159         -              Normal
  11/03/2026 04 AM PST            0.99            157         -              Normal
  11/03/2026 05 AM PST            0.99            157         0              Normal
  11/03/2026 06 AM PST            0.99            157         0              Normal
  11/03/2026 07 AM PST            1.00            159         +              Normal
  11/03/2026 08 AM PST            1.00            159         0              Normal
  11/03/2026 09 AM PST            1.00            159         0              Normal
  11/03/2026 10 AM PST            0.99            157         -              Normal
  11/03/2026 11 AM PST            1.00            159         +              Normal
  11/03/2026 12 PM PST            1.01            161         +              Normal
  11/03/2026 01 PM PST            1.00            159         -              Normal
  11/03/2026 02 PM PST            0.98            155         -              Normal
  11/03/2026 03 PM PST            0.97            154         -              Normal
  11/03/2026 04 PM PST            0.97            154         0              Normal
  11/03/2026 05 PM PST            0.96            152         -              Normal
  11/03/2026 06 PM PST            0.96            152         0              Normal
  11/03/2026 07 PM PST            0.95            150         -              Normal
  11/03/2026 08 PM PST            0.95            150         0              Normal
  11/03/2026 09 PM PST            0.95            150         0              Normal
  11/03/2026 10 PM PST            0.95            150         0              Normal
  11/03/2026 11 PM PST            0.94            148         -              Normal
  11/04/2026 12 AM PST            0.94            148         0              Normal
  11/04/2026 01 AM PST            0.93            147         -              Normal
  11/04/2026 02 AM PST            0.91            143         -              Normal
  11/04/2026 03 AM PST            0.89            140         -              Normal
  11/04/2026 04 AM PST            0.89            140         0              Normal
  11/04/2026 05 AM PST            0.89            140         0              Normal
  11/04/2026 06 AM PST            0.88            138         -              Normal
  11/04/2026 07 AM PST            0.88            138         0              Normal
  11/04/2026 08 AM PST            0.88            138         0              Normal
  11/04/2026 09 AM PST            0.88            138         0              Normal
  11/04/2026 10 AM PST            0.88            138         0              Normal
  11/04/2026 11 AM PST            0.88            138         0              Normal
  11/04/2026 12 PM PST            0.87            136         -              Normal
  11/04/2026 01 PM PST            0.87            136         0              Normal
  11/04/2026 02 PM PST            0.87            136         0              Normal
  11/04/2026 03 PM PST            0.88            138         +              Normal
  11/04/2026 04 PM PST            0.88            138         0              Normal
  11/04/2026 05 PM PST            0.88            138         0              Normal
  11/04/2026 06 PM PST            0.87            136         -              Normal
  11/04/2026 07 PM PST            0.87            136         0              Normal
  11/04/2026 08 PM PST            0.87            136         0              Normal
  11/04/2026 09 PM PST            0.87            136         0              Normal
  11/04/2026 10 PM PST            0.87            136         0              Normal
  11/04/2026 11 PM PST            0.87            136         0              Normal
  11/05/2026 12 AM PST            0.87            136         0              Normal
  11/05/2026 01 AM PST            0.87            136         0              Normal
  11/05/2026 02 AM PST            0.87            136         0              Normal
  11/05/2026 03 AM PST            0.87            136         0              Normal
  11/05/2026 04 AM PST            0.87            136         0              Normal
  11/05/2026 05 AM PST            0.88            138         +              Normal
  11/05/2026 06 AM PST            0.87            136         -              Normal
  11/05/2026 07 AM PST            0.87            136         0              Normal
  11/05/2026 08 AM PST            0.88            138         +              Normal
  11/05/2026 09 AM PST            0.87            136         -              Normal
  11/05/2026 10 AM PST            0.87            136         0              Normal
  11/05/2026 11 AM PST            0.88            138         +              Normal
  11/05/2026 12 PM PST            0.88            138         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/05/2026 01 PM PST            0.88            138                        Normal
  11/05/2026 02 PM PST            0.88            138         0              Normal
  11/05/2026 03 PM PST            0.88            138         0              Normal
  11/05/2026 04 PM PST            0.88            138         0              Normal
  11/05/2026 05 PM PST            0.88            138         0              Normal
  11/05/2026 06 PM PST            0.89            140         +              Normal
  11/05/2026 07 PM PST            0.89            140         0              Normal
  11/05/2026 08 PM PST            0.89            140         0              Normal
  11/05/2026 09 PM PST            0.89            140         0              Normal
  11/05/2026 10 PM PST            0.89            140         0              Normal
  11/05/2026 11 PM PST            0.89            140         0              Normal
  11/06/2026 12 AM PST            0.89            140         0              Normal
  11/06/2026 01 AM PST            0.89            140         0              Normal
  11/06/2026 02 AM PST            0.88            138         -              Normal
  11/06/2026 03 AM PST            0.88            138         0              Normal
  11/06/2026 04 AM PST            0.88            138         0              Normal
  11/06/2026 05 AM PST            0.88            138         0              Normal
  11/06/2026 06 AM PST            0.88            138         0              Normal
  11/06/2026 07 AM PST            0.88            138         0              Normal
  11/06/2026 08 AM PST            0.88            138         0              Normal
  11/06/2026 09 AM PST            0.88            138         0              Normal
  11/06/2026 10 AM PST            0.88            138         0              Normal
  11/06/2026 11 AM PST            0.88            138         0              Normal
  11/06/2026 12 PM PST            0.88            138         0              Normal
  11/06/2026 01 PM PST            0.88            138         0              Normal
  11/06/2026 02 PM PST            0.88            138         0              Normal
  11/06/2026 03 PM PST            0.88            138         0              Normal
  11/06/2026 04 PM PST            0.88            138         0              Normal
  11/06/2026 05 PM PST            0.88            138         0              Normal
  11/06/2026 06 PM PST            0.88            138         0              Normal
  11/06/2026 07 PM PST            0.88            138         0              Normal
  11/06/2026 08 PM PST            0.88            138         0              Normal
  11/06/2026 09 PM PST            0.88            138         0              Normal
  11/06/2026 10 PM PST            0.88            138         0              Normal
  11/06/2026 11 PM PST            0.88            138         0              Normal
  11/07/2026 12 AM PST            0.88            138         0              Normal
  11/07/2026 01 AM PST            0.88            138         0              Normal
  11/07/2026 02 AM PST            0.88            138         0              Normal
  11/07/2026 03 AM PST            0.88            138         0              Normal
  11/07/2026 04 AM PST            0.88            138         0              Normal
  11/07/2026 05 AM PST            0.88            138         0              Normal
  11/07/2026 06 AM PST            0.88            138         0              Normal
  11/07/2026 07 AM PST            0.88            138         0              Normal
  11/07/2026 08 AM PST            0.88            138         0              Normal
  11/07/2026 09 AM PST            0.88            138         0              Normal
  11/07/2026 10 AM PST            0.88            138         0              Normal
  11/07/2026 11 AM PST            0.88            138         0              Normal
  11/07/2026 12 PM PST            0.88            138         0              Normal
  11/07/2026 01 PM PST            0.88            138         0              Normal
  11/07/2026 02 PM PST            0.88            138         0              Normal
  11/07/2026 03 PM PST            0.88            138         0              Normal
  11/07/2026 04 PM PST            0.88            138         0              Normal
  11/07/2026 05 PM PST            0.88            138         0              Normal
  11/07/2026 06 PM PST            0.88            138         0              Normal
  11/07/2026 07 PM PST            0.88            138         0              Normal
  11/07/2026 08 PM PST            0.88            138         0              Normal
  11/07/2026 09 PM PST            0.88            138         0              Normal
  11/07/2026 10 PM PST            0.88            138         0              Normal
  11/07/2026 11 PM PST            0.88            138         0              Normal
  11/08/2026 12 AM PST            0.88            138         0              Normal
  11/08/2026 01 AM PST            0.88            138         0              Normal
  11/08/2026 02 AM PST            0.88            138         0              Normal
  11/08/2026 03 AM PST            0.88            138         0              Normal
  11/08/2026 04 AM PST            0.88            138         0              Normal
  11/08/2026 05 AM PST            0.88            138         0              Normal
  11/08/2026 06 AM PST            0.88            138         0              Normal
  11/08/2026 07 AM PST            0.88            138         0              Normal
  11/08/2026 08 AM PST            0.88            138         0              Normal
  11/08/2026 09 AM PST            0.88            138         0              Normal
  11/08/2026 10 AM PST            0.88            138         0              Normal
  11/08/2026 11 AM PST            0.88            138         0              Normal
  11/08/2026 12 PM PST            0.88            138         0              Normal
  11/08/2026 01 PM PST            0.88            138         0              Normal
  11/08/2026 02 PM PST            0.88            138         0              Normal
  11/08/2026 03 PM PST            0.88            138         0              Normal
  11/08/2026 04 PM PST            0.88            138         0              Normal
  11/08/2026 05 PM PST            0.88            138         0              Normal
  11/08/2026 06 PM PST            0.88            138         0              Normal
  11/08/2026 07 PM PST            0.88            138         0              Normal
  11/08/2026 08 PM PST            0.88            138         0              Normal
  11/08/2026 09 PM PST            0.88            138         0              Normal
  11/08/2026 10 PM PST            0.88            138         0              Normal
  11/08/2026 11 PM PST            0.88            138         0              Normal
  11/09/2026 12 AM PST            0.88            138         0              Normal
  11/09/2026 01 AM PST            0.88            138         0              Normal
  11/09/2026 02 AM PST            0.88            138         0              Normal
  11/09/2026 03 AM PST            0.88            138         0              Normal
  11/09/2026 04 AM PST            0.88            138         0              Normal
  11/09/2026 05 AM PST            0.88            138         0              Normal
  11/09/2026 06 AM PST            0.88            138         0              Normal
  11/09/2026 07 AM PST            0.88            138         0              Normal
  11/09/2026 08 AM PST            0.88            138         0              Normal
  11/09/2026 09 AM PST            0.88            138         0              Normal
  11/09/2026 10 AM PST            0.88            138         0              Normal
  11/09/2026 11 AM PST            0.88            138         0              Normal
  11/09/2026 12 PM PST            0.88            138         0              Normal
  11/09/2026 01 PM PST            0.88            138         0              Normal
  11/09/2026 02 PM PST            0.88            138         0              Normal
  11/09/2026 03 PM PST            0.88            138         0              Normal
  11/09/2026 04 PM PST            0.88            138         0              Normal
  11/09/2026 05 PM PST            0.88            138         0              Normal
  11/09/2026 06 PM PST            0.88            138         0              Normal
  11/09/2026 07 PM PST            0.88            138         0              Normal
  11/09/2026 08 PM PST            0.88            138         0              Normal
  11/09/2026 09 PM PST            0.88            138         0              Normal
  11/09/2026 10 PM PST            0.88            138         0              Normal
  11/09/2026 11 PM PST            0.88            138         0              Normal
  11/10/2026 12 AM PST            0.88            138         0              Normal
  11/10/2026 01 AM PST            0.88            138         0              Normal
  11/10/2026 02 AM PST            0.88            138         0              Normal
  11/10/2026 03 AM PST            0.88            138         0              Normal
  11/10/2026 04 AM PST            0.88            138         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.