RUSSIAN RIVER - HACIENDA BRIDGE (RIOC1)
Latitude: 38.51º NLongitude: 122.93º WElevation: 20 FeetForecast Type: Unofficial Location
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Oct 20 2026 at 7:29 AM PDTNext Issuance: Oct 21 2026 at 9:00 AM PDT
Action: 31.0 FeetMinor Flood: 34.0 FeetModerate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Russian River - Hacienda Bridge (RIOC1)
#
# File Generation Time:  10/20/2026 at 07:30 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/20/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       1.67 Feet
# Maximum Observed Flow:                        169 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/23/2026 at 06:00 PM PDT
# Maximum Forecast Stage:                       1.78 Feet
# Maximum Forecast Flow:                        184 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/15/2026 07 AM PDT            1.45            142                        Normal
  10/15/2026 08 AM PDT            1.45            142         0              Normal
  10/15/2026 09 AM PDT            1.45            142         0              Normal
  10/15/2026 10 AM PDT            1.45            142         0              Normal
  10/15/2026 11 AM PDT            1.46            143         +              Normal
  10/15/2026 12 PM PDT            1.47            144         +              Normal
  10/15/2026 01 PM PDT            1.47            144         0              Normal
  10/15/2026 02 PM PDT            1.46            143         -              Normal
  10/15/2026 03 PM PDT            1.46            143         0              Normal
  10/15/2026 04 PM PDT            1.46            143         0              Normal
  10/15/2026 05 PM PDT            1.46            143         0              Normal
  10/15/2026 06 PM PDT            1.46            143         0              Normal
  10/15/2026 07 PM PDT            1.46            143         0              Normal
  10/15/2026 08 PM PDT            1.46            143         0              Normal
  10/15/2026 09 PM PDT            1.46            143         0              Normal
  10/15/2026 10 PM PDT            1.46            143         0              Normal
  10/15/2026 11 PM PDT            1.46            143         0              Normal
  10/16/2026 12 AM PDT            1.46            143         0              Normal
  10/16/2026 01 AM PDT            1.46            143         0              Normal
  10/16/2026 02 AM PDT            1.47            144         +              Normal
  10/16/2026 03 AM PDT            1.47            144         0              Normal
  10/16/2026 04 AM PDT            1.47            144         0              Normal
  10/16/2026 05 AM PDT            1.47            144         0              Normal
  10/16/2026 06 AM PDT            1.48            145         +              Normal
  10/16/2026 07 AM PDT            1.48            145         0              Normal
  10/16/2026 08 AM PDT            1.48            145         0              Normal
  10/16/2026 09 AM PDT            1.48            145         0              Normal
  10/16/2026 10 AM PDT            1.49            147         +              Normal
  10/16/2026 11 AM PDT            1.49            147         0              Normal
  10/16/2026 12 PM PDT            1.50            148         +              Normal
  10/16/2026 01 PM PDT            1.50            148         0              Normal
  10/16/2026 02 PM PDT            1.50            148         0              Normal
  10/16/2026 03 PM PDT            1.50            148         0              Normal
  10/16/2026 04 PM PDT            1.49            147         -              Normal
  10/16/2026 05 PM PDT            1.49            147         0              Normal
  10/16/2026 06 PM PDT            1.49            147         0              Normal
  10/16/2026 07 PM PDT            1.49            147         0              Normal
  10/16/2026 08 PM PDT            1.49            147         0              Normal
  10/16/2026 09 PM PDT            1.49            147         0              Normal
  10/16/2026 10 PM PDT            1.50            148         +              Normal
  10/16/2026 11 PM PDT            1.50            148         0              Normal
  10/17/2026 12 AM PDT            1.50            148         0              Normal
  10/17/2026 01 AM PDT            1.50            148         0              Normal
  10/17/2026 02 AM PDT            1.50            148         0              Normal
  10/17/2026 03 AM PDT            1.50            148         0              Normal
  10/17/2026 04 AM PDT            1.51            149         +              Normal
  10/17/2026 05 AM PDT            1.51            149         0              Normal
  10/17/2026 06 AM PDT            1.51            149         0              Normal
  10/17/2026 07 AM PDT            1.51            149         0              Normal
  10/17/2026 08 AM PDT            1.51            149         0              Normal
  10/17/2026 09 AM PDT            1.52            150         +              Normal
  10/17/2026 10 AM PDT            1.52            150         0              Normal
  10/17/2026 11 AM PDT            1.52            150         0              Normal
  10/17/2026 12 PM PDT            1.53            151         +              Normal
  10/17/2026 01 PM PDT            1.52            150         -              Normal
  10/17/2026 02 PM PDT            1.53            151         +              Normal
  10/17/2026 03 PM PDT            1.52            150         -              Normal
  10/17/2026 04 PM PDT            1.52            150         0              Normal
  10/17/2026 05 PM PDT            1.52            150         0              Normal
  10/17/2026 06 PM PDT            1.52            150         0              Normal
  10/17/2026 07 PM PDT            1.52            150         0              Normal
  10/17/2026 08 PM PDT            1.52            150         0              Normal
  10/17/2026 09 PM PDT            1.53            151         +              Normal
  10/17/2026 10 PM PDT            1.53            151         0              Normal
  10/17/2026 11 PM PDT            1.53            151         0              Normal
  10/18/2026 12 AM PDT            1.53            151         0              Normal
  10/18/2026 01 AM PDT            1.54            153         +              Normal
  10/18/2026 02 AM PDT            1.54            153         0              Normal
  10/18/2026 03 AM PDT            1.54            153         0              Normal
  10/18/2026 04 AM PDT            1.54            153         0              Normal
  10/18/2026 05 AM PDT            1.54            153         0              Normal
  10/18/2026 06 AM PDT            1.55            154         +              Normal
  10/18/2026 07 AM PDT            1.55            154         0              Normal
  10/18/2026 08 AM PDT            1.55            154         0              Normal
  10/18/2026 09 AM PDT            1.55            154         0              Normal
  10/18/2026 10 AM PDT            1.55            154         0              Normal
  10/18/2026 11 AM PDT            1.56            155         +              Normal
  10/18/2026 12 PM PDT            1.57            156         +              Normal
  10/18/2026 01 PM PDT            1.57            156         0              Normal
  10/18/2026 02 PM PDT            1.57            156         0              Normal
  10/18/2026 03 PM PDT            1.57            156         0              Normal
  10/18/2026 04 PM PDT            1.57            156         0              Normal
  10/18/2026 05 PM PDT            1.58            158         +              Normal
  10/18/2026 06 PM PDT            1.57            156         -              Normal
  10/18/2026 07 PM PDT            1.57            156         0              Normal
  10/18/2026 08 PM PDT            1.58            158         +              Normal
  10/18/2026 09 PM PDT            1.58            158         0              Normal
  10/18/2026 10 PM PDT            1.59            159         +              Normal
  10/18/2026 11 PM PDT            1.60            160         +              Normal
  10/19/2026 12 AM PDT            1.60            160         0              Normal
  10/19/2026 01 AM PDT            1.61            161         +              Normal
  10/19/2026 02 AM PDT            1.62            163         +              Normal
  10/19/2026 03 AM PDT            1.62            163         0              Normal
  10/19/2026 04 AM PDT            1.63            164         +              Normal
  10/19/2026 05 AM PDT            1.64            165         +              Normal
  10/19/2026 06 AM PDT            1.64            165         0              Normal
  10/19/2026 07 AM PDT            1.65            166         +              Normal
  10/19/2026 08 AM PDT            1.65            166         0              Normal
  10/19/2026 09 AM PDT            1.66            168         +              Normal
  10/19/2026 10 AM PDT            1.66            168         0              Normal
  10/19/2026 11 AM PDT            1.67            169         +              Normal
  10/19/2026 12 PM PDT            1.67            169         0              Normal
  10/19/2026 01 PM PDT            1.67            169         0              Normal
  10/19/2026 02 PM PDT            1.67            169         0              Normal
  10/19/2026 03 PM PDT            1.67            169         0              Normal
  10/19/2026 04 PM PDT            1.67            169         0              Normal
  10/19/2026 05 PM PDT            1.66            168         -              Normal
  10/19/2026 06 PM PDT            1.66            168         0              Normal
  10/19/2026 07 PM PDT            1.66            168         0              Normal
  10/19/2026 08 PM PDT            1.66            168         0              Normal
  10/19/2026 09 PM PDT            1.67            169         +              Normal
  10/19/2026 10 PM PDT            1.66            168         -              Normal
  10/19/2026 11 PM PDT            1.67            169         +              Normal
  10/20/2026 12 AM PDT            1.67            169         0              Normal
  10/20/2026 01 AM PDT            1.67            169         0              Normal
  10/20/2026 02 AM PDT            1.67            169         0              Normal
  10/20/2026 03 AM PDT            1.67            169         0              Normal
  10/20/2026 04 AM PDT            1.67            169         0              Normal
  10/20/2026 05 AM PDT            1.67            169         0              Normal
  10/20/2026 06 AM PDT            1.67            169         0              Normal
  10/20/2026 07 AM PDT            1.67            169         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/20/2026 08 AM PDT            1.67            169                        Normal
  10/20/2026 09 AM PDT            1.67            169         0              Normal
  10/20/2026 10 AM PDT            1.67            169         0              Normal
  10/20/2026 11 AM PDT            1.67            169         0              Normal
  10/20/2026 12 PM PDT            1.68            170         +              Normal
  10/20/2026 01 PM PDT            1.68            170         0              Normal
  10/20/2026 02 PM PDT            1.68            170         0              Normal
  10/20/2026 03 PM PDT            1.68            170         0              Normal
  10/20/2026 04 PM PDT            1.67            169         -              Normal
  10/20/2026 05 PM PDT            1.67            169         0              Normal
  10/20/2026 06 PM PDT            1.67            169         0              Normal
  10/20/2026 07 PM PDT            1.67            169         0              Normal
  10/20/2026 08 PM PDT            1.67            169         0              Normal
  10/20/2026 09 PM PDT            1.67            169         0              Normal
  10/20/2026 10 PM PDT            1.66            168         -              Normal
  10/20/2026 11 PM PDT            1.66            168         0              Normal
  10/21/2026 12 AM PDT            1.66            168         0              Normal
  10/21/2026 01 AM PDT            1.66            168         0              Normal
  10/21/2026 02 AM PDT            1.66            168         0              Normal
  10/21/2026 03 AM PDT            1.66            168         0              Normal
  10/21/2026 04 AM PDT            1.65            166         -              Normal
  10/21/2026 05 AM PDT            1.65            166         0              Normal
  10/21/2026 06 AM PDT            1.65            166         0              Normal
  10/21/2026 07 AM PDT            1.65            166         0              Normal
  10/21/2026 08 AM PDT            1.65            166         0              Normal
  10/21/2026 09 AM PDT            1.65            166         0              Normal
  10/21/2026 10 AM PDT            1.65            166         0              Normal
  10/21/2026 11 AM PDT            1.65            166         0              Normal
  10/21/2026 12 PM PDT            1.65            166         0              Normal
  10/21/2026 01 PM PDT            1.65            166         0              Normal
  10/21/2026 02 PM PDT            1.65            166         0              Normal
  10/21/2026 03 PM PDT            1.65            166         0              Normal
  10/21/2026 04 PM PDT            1.65            166         0              Normal
  10/21/2026 05 PM PDT            1.65            166         0              Normal
  10/21/2026 06 PM PDT            1.66            168         +              Normal
  10/21/2026 07 PM PDT            1.66            168         0              Normal
  10/21/2026 08 PM PDT            1.66            168         0              Normal
  10/21/2026 09 PM PDT            1.66            168         0              Normal
  10/21/2026 10 PM PDT            1.66            168         0              Normal
  10/21/2026 11 PM PDT            1.66            168         0              Normal
  10/22/2026 12 AM PDT            1.67            169         +              Normal
  10/22/2026 01 AM PDT            1.67            169         0              Normal
  10/22/2026 02 AM PDT            1.67            169         0              Normal
  10/22/2026 03 AM PDT            1.67            169         0              Normal
  10/22/2026 04 AM PDT            1.67            169         0              Normal
  10/22/2026 05 AM PDT            1.67            169         0              Normal
  10/22/2026 06 AM PDT            1.67            169         0              Normal
  10/22/2026 07 AM PDT            1.67            169         0              Normal
  10/22/2026 08 AM PDT            1.68            170         +              Normal
  10/22/2026 09 AM PDT            1.68            170         0              Normal
  10/22/2026 10 AM PDT            1.68            170         0              Normal
  10/22/2026 11 AM PDT            1.68            170         0              Normal
  10/22/2026 12 PM PDT            1.68            170         0              Normal
  10/22/2026 01 PM PDT            1.68            170         0              Normal
  10/22/2026 02 PM PDT            1.68            170         0              Normal
  10/22/2026 03 PM PDT            1.69            172         +              Normal
  10/22/2026 04 PM PDT            1.69            172         0              Normal
  10/22/2026 05 PM PDT            1.70            173         +              Normal
  10/22/2026 06 PM PDT            1.71            174         +              Normal
  10/22/2026 07 PM PDT            1.72            176         +              Normal
  10/22/2026 08 PM PDT            1.72            176         0              Normal
  10/22/2026 09 PM PDT            1.73            177         +              Normal
  10/22/2026 10 PM PDT            1.74            178         +              Normal
  10/22/2026 11 PM PDT            1.74            178         0              Normal
  10/23/2026 12 AM PDT            1.75            180         +              Normal
  10/23/2026 01 AM PDT            1.75            180         0              Normal
  10/23/2026 02 AM PDT            1.76            181         +              Normal
  10/23/2026 03 AM PDT            1.76            181         0              Normal
  10/23/2026 04 AM PDT            1.76            181         0              Normal
  10/23/2026 05 AM PDT            1.76            181         0              Normal
  10/23/2026 06 AM PDT            1.77            182         +              Normal
  10/23/2026 07 AM PDT            1.77            182         0              Normal
  10/23/2026 08 AM PDT            1.77            182         0              Normal
  10/23/2026 09 AM PDT            1.77            182         0              Normal
  10/23/2026 10 AM PDT            1.77            182         0              Normal
  10/23/2026 11 AM PDT            1.77            182         0              Normal
  10/23/2026 12 PM PDT            1.77            182         0              Normal
  10/23/2026 01 PM PDT            1.77            182         0              Normal
  10/23/2026 02 PM PDT            1.77            182         0              Normal
  10/23/2026 03 PM PDT            1.77            182         0              Normal
  10/23/2026 04 PM PDT            1.77            182         0              Normal
  10/23/2026 05 PM PDT            1.77            182         0              Normal
  10/23/2026 06 PM PDT            1.78            184         +              Normal
  10/23/2026 07 PM PDT            1.78            184         0              Normal
  10/23/2026 08 PM PDT            1.78            184         0              Normal
  10/23/2026 09 PM PDT            1.78            184         0              Normal
  10/23/2026 10 PM PDT            1.78            184         0              Normal
  10/23/2026 11 PM PDT            1.78            184         0              Normal
  10/24/2026 12 AM PDT            1.77            182         -              Normal
  10/24/2026 01 AM PDT            1.77            182         0              Normal
  10/24/2026 02 AM PDT            1.77            182         0              Normal
  10/24/2026 03 AM PDT            1.77            182         0              Normal
  10/24/2026 04 AM PDT            1.77            182         0              Normal
  10/24/2026 05 AM PDT            1.77            182         0              Normal
  10/24/2026 06 AM PDT            1.77            182         0              Normal
  10/24/2026 07 AM PDT            1.77            182         0              Normal
  10/24/2026 08 AM PDT            1.77            182         0              Normal
  10/24/2026 09 AM PDT            1.76            181         -              Normal
  10/24/2026 10 AM PDT            1.76            181         0              Normal
  10/24/2026 11 AM PDT            1.76            181         0              Normal
  10/24/2026 12 PM PDT            1.76            181         0              Normal
  10/24/2026 01 PM PDT            1.75            180         -              Normal
  10/24/2026 02 PM PDT            1.75            180         0              Normal
  10/24/2026 03 PM PDT            1.75            180         0              Normal
  10/24/2026 04 PM PDT            1.75            180         0              Normal
  10/24/2026 05 PM PDT            1.75            180         0              Normal
  10/24/2026 06 PM PDT            1.75            180         0              Normal
  10/24/2026 07 PM PDT            1.75            180         0              Normal
  10/24/2026 08 PM PDT            1.74            178         -              Normal
  10/24/2026 09 PM PDT            1.74            178         0              Normal
  10/24/2026 10 PM PDT            1.74            178         0              Normal
  10/24/2026 11 PM PDT            1.74            178         0              Normal
  10/25/2026 12 AM PDT            1.74            178         0              Normal
  10/25/2026 01 AM PDT            1.74            178         0              Normal
  10/25/2026 02 AM PDT            1.73            177         -              Normal
  10/25/2026 03 AM PDT            1.73            177         0              Normal
  10/25/2026 04 AM PDT            1.73            177         0              Normal
  10/25/2026 05 AM PDT            1.73            177         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.