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 Feet
Location: Mendocino County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jul 19 2025 at 7:48 AM PDTNext Issuance: Jul 20 2025 at 9:00 AM PDT
Action/Monitor: 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:  07/19/2025 at 07:48 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/15/2025 at 08:00 AM PDT
# Maximum Observed Stage:                       1.06 Feet
# Maximum Observed Flow:                        181 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/22/2025 at 12:00 PM PDT
# Maximum Forecast Stage:                       0.95 Feet
# Maximum Forecast Flow:                        161 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/14/2025 07 AM PDT            1.04            177                        Normal
  07/14/2025 08 AM PDT            1.04            177         0              Normal
  07/14/2025 09 AM PDT            1.04            177         0              Normal
  07/14/2025 10 AM PDT            1.04            177         0              Normal
  07/14/2025 11 AM PDT            1.04            177         0              Normal
  07/14/2025 12 PM PDT            1.03            175         -              Normal
  07/14/2025 01 PM PDT            1.03            175         0              Normal
  07/14/2025 02 PM PDT            1.01            172         -              Normal
  07/14/2025 03 PM PDT            1.01            172         0              Normal
  07/14/2025 04 PM PDT            1.02            173         +              Normal
  07/14/2025 05 PM PDT            1.01            172         -              Normal
  07/14/2025 06 PM PDT            1.01            172         0              Normal
  07/14/2025 07 PM PDT            1.00            170         -              Normal
  07/14/2025 08 PM PDT            1.02            173         +              Normal
  07/14/2025 09 PM PDT            1.03            175         +              Normal
  07/14/2025 10 PM PDT            1.03            175         0              Normal
  07/14/2025 11 PM PDT            1.03            175         0              Normal
  07/15/2025 12 AM PDT            1.03            175         0              Normal
  07/15/2025 01 AM PDT            1.04            177         +              Normal
  07/15/2025 02 AM PDT            1.04            177         0              Normal
  07/15/2025 03 AM PDT            1.05            179         +              Normal
  07/15/2025 04 AM PDT            1.05            179         0              Normal
  07/15/2025 05 AM PDT            1.05            179         0              Normal
  07/15/2025 06 AM PDT            1.05            179         0              Normal
  07/15/2025 07 AM PDT            1.06            181         +              Normal
  07/15/2025 08 AM PDT            1.06            181         0              Normal
  07/15/2025 09 AM PDT            1.05            179         -              Normal
  07/15/2025 10 AM PDT            1.04            177         -              Normal
  07/15/2025 11 AM PDT            1.04            177         0              Normal
  07/15/2025 12 PM PDT            1.03            175         -              Normal
  07/15/2025 01 PM PDT            1.03            175         0              Normal
  07/15/2025 02 PM PDT            1.03            175         0              Normal
  07/15/2025 03 PM PDT            1.02            173         -              Normal
  07/15/2025 04 PM PDT            1.01            172         -              Normal
  07/15/2025 05 PM PDT            1.00            170         -              Normal
  07/15/2025 06 PM PDT            1.00            170         0              Normal
  07/15/2025 07 PM PDT            1.00            170         0              Normal
  07/15/2025 08 PM PDT            1.00            170         0              Normal
  07/15/2025 09 PM PDT            1.01            172         +              Normal
  07/15/2025 10 PM PDT            1.01            172         0              Normal
  07/15/2025 11 PM PDT            1.01            172         0              Normal
  07/16/2025 12 AM PDT            1.02            173         +              Normal
  07/16/2025 01 AM PDT            1.02            173         0              Normal
  07/16/2025 02 AM PDT            1.03            175         +              Normal
  07/16/2025 03 AM PDT            1.03            175         0              Normal
  07/16/2025 04 AM PDT            1.03            175         0              Normal
  07/16/2025 05 AM PDT            1.03            175         0              Normal
  07/16/2025 06 AM PDT            1.03            175         0              Normal
  07/16/2025 07 AM PDT            1.04            177         +              Normal
  07/16/2025 08 AM PDT            1.03            175         -              Normal
  07/16/2025 09 AM PDT            1.03            175         0              Normal
  07/16/2025 10 AM PDT            1.03            175         0              Normal
  07/16/2025 11 AM PDT            1.03            175         0              Normal
  07/16/2025 12 PM PDT            1.03            175         0              Normal
  07/16/2025 01 PM PDT            1.02            173         -              Normal
  07/16/2025 02 PM PDT            1.01            172         -              Normal
  07/16/2025 03 PM PDT            1.00            170         -              Normal
  07/16/2025 04 PM PDT            0.98            166         -              Normal
  07/16/2025 05 PM PDT            0.99            168         +              Normal
  07/16/2025 06 PM PDT            0.99            168         0              Normal
  07/16/2025 07 PM PDT            0.99            168         0              Normal
  07/16/2025 08 PM PDT            0.99            168         0              Normal
  07/16/2025 09 PM PDT            0.99            168         0              Normal
  07/16/2025 10 PM PDT            0.98            166         -              Normal
  07/16/2025 11 PM PDT            0.99            168         +              Normal
  07/17/2025 12 AM PDT            0.99            168         0              Normal
  07/17/2025 01 AM PDT            1.00            170         +              Normal
  07/17/2025 02 AM PDT            1.00            170         0              Normal
  07/17/2025 03 AM PDT            1.01            172         +              Normal
  07/17/2025 04 AM PDT            1.01            172         0              Normal
  07/17/2025 05 AM PDT            1.02            173         +              Normal
  07/17/2025 06 AM PDT            1.03            175         +              Normal
  07/17/2025 07 AM PDT            1.02            173         -              Normal
  07/17/2025 08 AM PDT            1.01            172         -              Normal
  07/17/2025 09 AM PDT            1.01            172         0              Normal
  07/17/2025 10 AM PDT            1.02            173         +              Normal
  07/17/2025 11 AM PDT            1.02            173         0              Normal
  07/17/2025 12 PM PDT            1.01            172         -              Normal
  07/17/2025 01 PM PDT            1.01            172         0              Normal
  07/17/2025 02 PM PDT            1.00            170         -              Normal
  07/17/2025 03 PM PDT            0.99            168         -              Normal
  07/17/2025 04 PM PDT            0.99            168         0              Normal
  07/17/2025 05 PM PDT            0.99            168         0              Normal
  07/17/2025 06 PM PDT            0.99            168         0              Normal
  07/17/2025 07 PM PDT            0.97            164         -              Normal
  07/17/2025 08 PM PDT            0.95            161         -              Normal
  07/17/2025 09 PM PDT            0.93            157         -              Normal
  07/17/2025 10 PM PDT            0.92            155         -              Normal
  07/17/2025 11 PM PDT            0.92            155         0              Normal
  07/18/2025 12 AM PDT            0.93            157         +              Normal
  07/18/2025 01 AM PDT            0.94            159         +              Normal
  07/18/2025 02 AM PDT            0.94            159         0              Normal
  07/18/2025 03 AM PDT            0.93            157         -              Normal
  07/18/2025 04 AM PDT            0.94            159         +              Normal
  07/18/2025 05 AM PDT            0.94            159         0              Normal
  07/18/2025 06 AM PDT            0.94            159         0              Normal
  07/18/2025 07 AM PDT            0.94            159         0              Normal
  07/18/2025 08 AM PDT            0.94            159         0              Normal
  07/18/2025 09 AM PDT            0.92            155         -              Normal
  07/18/2025 10 AM PDT            0.92            155         0              Normal
  07/18/2025 11 AM PDT            0.91            154         -              Normal
  07/18/2025 12 PM PDT            0.90            152         -              Normal
  07/18/2025 01 PM PDT            0.88            148         -              Normal
  07/18/2025 02 PM PDT            0.88            148         0              Normal
  07/18/2025 03 PM PDT            0.87            147         -              Normal
  07/18/2025 04 PM PDT            0.88            148         +              Normal
  07/18/2025 05 PM PDT            0.89            150         +              Normal
  07/18/2025 06 PM PDT            0.89            150         0              Normal
  07/18/2025 07 PM PDT            0.89            150         0              Normal
  07/18/2025 08 PM PDT            0.89            150         0              Normal
  07/18/2025 09 PM PDT            0.89            150         0              Normal
  07/18/2025 10 PM PDT            0.90            152         +              Normal
  07/18/2025 11 PM PDT            0.91            154         +              Normal
  07/19/2025 12 AM PDT            0.92            155         +              Normal
  07/19/2025 01 AM PDT            0.93            157         +              Normal
  07/19/2025 02 AM PDT            0.93            157         0              Normal
  07/19/2025 03 AM PDT            0.94            159         +              Normal
  07/19/2025 04 AM PDT            0.94            159         0              Normal
  07/19/2025 05 AM PDT            0.94            159         0              Normal
  07/19/2025 06 AM PDT            0.94            159         0              Normal
  07/19/2025 07 AM PDT            0.94            159         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/19/2025 08 AM PDT            0.94            159                        Normal
  07/19/2025 09 AM PDT            0.94            159         0              Normal
  07/19/2025 10 AM PDT            0.94            159         0              Normal
  07/19/2025 11 AM PDT            0.94            159         0              Normal
  07/19/2025 12 PM PDT            0.94            159         0              Normal
  07/19/2025 01 PM PDT            0.94            159         0              Normal
  07/19/2025 02 PM PDT            0.94            159         0              Normal
  07/19/2025 03 PM PDT            0.94            159         0              Normal
  07/19/2025 04 PM PDT            0.94            159         0              Normal
  07/19/2025 05 PM PDT            0.94            159         0              Normal
  07/19/2025 06 PM PDT            0.94            159         0              Normal
  07/19/2025 07 PM PDT            0.94            159         0              Normal
  07/19/2025 08 PM PDT            0.94            159         0              Normal
  07/19/2025 09 PM PDT            0.94            159         0              Normal
  07/19/2025 10 PM PDT            0.94            159         0              Normal
  07/19/2025 11 PM PDT            0.94            159         0              Normal
  07/20/2025 12 AM PDT            0.94            159         0              Normal
  07/20/2025 01 AM PDT            0.94            159         0              Normal
  07/20/2025 02 AM PDT            0.94            159         0              Normal
  07/20/2025 03 AM PDT            0.94            159         0              Normal
  07/20/2025 04 AM PDT            0.94            159         0              Normal
  07/20/2025 05 AM PDT            0.94            159         0              Normal
  07/20/2025 06 AM PDT            0.94            159         0              Normal
  07/20/2025 07 AM PDT            0.94            159         0              Normal
  07/20/2025 08 AM PDT            0.94            159         0              Normal
  07/20/2025 09 AM PDT            0.94            159         0              Normal
  07/20/2025 10 AM PDT            0.94            159         0              Normal
  07/20/2025 11 AM PDT            0.94            159         0              Normal
  07/20/2025 12 PM PDT            0.94            159         0              Normal
  07/20/2025 01 PM PDT            0.94            159         0              Normal
  07/20/2025 02 PM PDT            0.94            159         0              Normal
  07/20/2025 03 PM PDT            0.94            159         0              Normal
  07/20/2025 04 PM PDT            0.94            159         0              Normal
  07/20/2025 05 PM PDT            0.94            159         0              Normal
  07/20/2025 06 PM PDT            0.94            159         0              Normal
  07/20/2025 07 PM PDT            0.94            159         0              Normal
  07/20/2025 08 PM PDT            0.94            159         0              Normal
  07/20/2025 09 PM PDT            0.94            159         0              Normal
  07/20/2025 10 PM PDT            0.94            159         0              Normal
  07/20/2025 11 PM PDT            0.94            159         0              Normal
  07/21/2025 12 AM PDT            0.94            159         0              Normal
  07/21/2025 01 AM PDT            0.94            159         0              Normal
  07/21/2025 02 AM PDT            0.94            159         0              Normal
  07/21/2025 03 AM PDT            0.94            159         0              Normal
  07/21/2025 04 AM PDT            0.94            159         0              Normal
  07/21/2025 05 AM PDT            0.94            159         0              Normal
  07/21/2025 06 AM PDT            0.94            159         0              Normal
  07/21/2025 07 AM PDT            0.94            159         0              Normal
  07/21/2025 08 AM PDT            0.94            159         0              Normal
  07/21/2025 09 AM PDT            0.94            159         0              Normal
  07/21/2025 10 AM PDT            0.94            159         0              Normal
  07/21/2025 11 AM PDT            0.93            157         -              Normal
  07/21/2025 12 PM PDT            0.93            157         0              Normal
  07/21/2025 01 PM PDT            0.93            157         0              Normal
  07/21/2025 02 PM PDT            0.93            157         0              Normal
  07/21/2025 03 PM PDT            0.93            157         0              Normal
  07/21/2025 04 PM PDT            0.93            157         0              Normal
  07/21/2025 05 PM PDT            0.93            157         0              Normal
  07/21/2025 06 PM PDT            0.93            157         0              Normal
  07/21/2025 07 PM PDT            0.93            157         0              Normal
  07/21/2025 08 PM PDT            0.93            157         0              Normal
  07/21/2025 09 PM PDT            0.93            157         0              Normal
  07/21/2025 10 PM PDT            0.93            157         0              Normal
  07/21/2025 11 PM PDT            0.93            157         0              Normal
  07/22/2025 12 AM PDT            0.93            157         0              Normal
  07/22/2025 01 AM PDT            0.93            157         0              Normal
  07/22/2025 02 AM PDT            0.93            157         0              Normal
  07/22/2025 03 AM PDT            0.93            157         0              Normal
  07/22/2025 04 AM PDT            0.93            157         0              Normal
  07/22/2025 05 AM PDT            0.93            157         0              Normal
  07/22/2025 06 AM PDT            0.94            159         +              Normal
  07/22/2025 07 AM PDT            0.94            159         0              Normal
  07/22/2025 08 AM PDT            0.94            159         0              Normal
  07/22/2025 09 AM PDT            0.94            159         0              Normal
  07/22/2025 10 AM PDT            0.94            159         0              Normal
  07/22/2025 11 AM PDT            0.94            159         0              Normal
  07/22/2025 12 PM PDT            0.95            161         +              Normal
  07/22/2025 01 PM PDT            0.95            161         0              Normal
  07/22/2025 02 PM PDT            0.95            161         0              Normal
  07/22/2025 03 PM PDT            0.95            161         0              Normal
  07/22/2025 04 PM PDT            0.95            161         0              Normal
  07/22/2025 05 PM PDT            0.95            161         0              Normal
  07/22/2025 06 PM PDT            0.95            161         0              Normal
  07/22/2025 07 PM PDT            0.95            161         0              Normal
  07/22/2025 08 PM PDT            0.94            159         -              Normal
  07/22/2025 09 PM PDT            0.94            159         0              Normal
  07/22/2025 10 PM PDT            0.94            159         0              Normal
  07/22/2025 11 PM PDT            0.94            159         0              Normal
  07/23/2025 12 AM PDT            0.94            159         0              Normal
  07/23/2025 01 AM PDT            0.94            159         0              Normal
  07/23/2025 02 AM PDT            0.94            159         0              Normal
  07/23/2025 03 AM PDT            0.94            159         0              Normal
  07/23/2025 04 AM PDT            0.94            159         0              Normal
  07/23/2025 05 AM PDT            0.93            157         -              Normal
  07/23/2025 06 AM PDT            0.93            157         0              Normal
  07/23/2025 07 AM PDT            0.93            157         0              Normal
  07/23/2025 08 AM PDT            0.93            157         0              Normal
  07/23/2025 09 AM PDT            0.93            157         0              Normal
  07/23/2025 10 AM PDT            0.93            157         0              Normal
  07/23/2025 11 AM PDT            0.93            157         0              Normal
  07/23/2025 12 PM PDT            0.93            157         0              Normal
  07/23/2025 01 PM PDT            0.93            157         0              Normal
  07/23/2025 02 PM PDT            0.93            157         0              Normal
  07/23/2025 03 PM PDT            0.93            157         0              Normal
  07/23/2025 04 PM PDT            0.93            157         0              Normal
  07/23/2025 05 PM PDT            0.93            157         0              Normal
  07/23/2025 06 PM PDT            0.93            157         0              Normal
  07/23/2025 07 PM PDT            0.93            157         0              Normal
  07/23/2025 08 PM PDT            0.93            157         0              Normal
  07/23/2025 09 PM PDT            0.93            157         0              Normal
  07/23/2025 10 PM PDT            0.93            157         0              Normal
  07/23/2025 11 PM PDT            0.93            157         0              Normal
  07/24/2025 12 AM PDT            0.93            157         0              Normal
  07/24/2025 01 AM PDT            0.93            157         0              Normal
  07/24/2025 02 AM PDT            0.93            157         0              Normal
  07/24/2025 03 AM PDT            0.93            157         0              Normal
  07/24/2025 04 AM PDT            0.93            157         0              Normal
  07/24/2025 05 AM PDT            0.93            157         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.