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 26 2026 at 6:54 AM PDTNext Issuance: Oct 27 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:  10/26/2026 at 06:55 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/26/2026 at 06:00 AM PDT
# Maximum Observed Stage:                       1.80 Feet
# Maximum Observed Flow:                        186 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/26/2026 at 07:00 AM PDT
# Maximum Forecast Stage:                       1.80 Feet
# Maximum Forecast Flow:                        186 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/21/2026 06 AM PDT            1.71            174                        Normal
  10/21/2026 07 AM PDT            1.71            174         0              Normal
  10/21/2026 08 AM PDT            1.71            174         0              Normal
  10/21/2026 09 AM PDT            1.71            174         0              Normal
  10/21/2026 10 AM PDT            1.72            176         +              Normal
  10/21/2026 11 AM PDT            1.71            174         -              Normal
  10/21/2026 12 PM PDT            1.71            174         0              Normal
  10/21/2026 01 PM PDT            1.71            174         0              Normal
  10/21/2026 02 PM PDT            1.71            174         0              Normal
  10/21/2026 03 PM PDT            1.71            174         0              Normal
  10/21/2026 04 PM PDT            1.70            173         -              Normal
  10/21/2026 05 PM PDT            1.70            173         0              Normal
  10/21/2026 06 PM PDT            1.71            174         +              Normal
  10/21/2026 07 PM PDT            1.71            174         0              Normal
  10/21/2026 08 PM PDT            1.72            176         +              Normal
  10/21/2026 09 PM PDT            1.72            176         0              Normal
  10/21/2026 10 PM PDT            1.72            176         0              Normal
  10/21/2026 11 PM PDT            1.72            176         0              Normal
  10/22/2026 12 AM PDT            1.72            176         0              Normal
  10/22/2026 01 AM PDT            1.72            176         0              Normal
  10/22/2026 02 AM PDT            1.72            176         0              Normal
  10/22/2026 03 AM PDT            1.72            176         0              Normal
  10/22/2026 04 AM PDT            1.72            176         0              Normal
  10/22/2026 05 AM PDT            1.73            177         +              Normal
  10/22/2026 06 AM PDT            1.73            177         0              Normal
  10/22/2026 07 AM PDT            1.73            177         0              Normal
  10/22/2026 08 AM PDT            1.74            178         +              Normal
  10/22/2026 09 AM PDT            1.74            178         0              Normal
  10/22/2026 10 AM PDT            1.74            178         0              Normal
  10/22/2026 11 AM PDT            1.75            180         +              Normal
  10/22/2026 12 PM PDT            1.75            180         0              Normal
  10/22/2026 01 PM PDT            1.75            180         0              Normal
  10/22/2026 02 PM PDT            1.75            180         0              Normal
  10/22/2026 03 PM PDT            1.76            181         +              Normal
  10/22/2026 04 PM PDT            1.76            181         0              Normal
  10/22/2026 05 PM PDT            1.76            181         0              Normal
  10/22/2026 06 PM PDT            1.77            182         +              Normal
  10/22/2026 07 PM PDT            1.77            182         0              Normal
  10/22/2026 08 PM PDT            1.77            182         0              Normal
  10/22/2026 09 PM PDT            1.77            182         0              Normal
  10/22/2026 10 PM PDT            1.77            182         0              Normal
  10/22/2026 11 PM PDT            1.78            184         +              Normal
  10/23/2026 12 AM PDT            1.78            184         0              Normal
  10/23/2026 01 AM PDT            1.78            184         0              Normal
  10/23/2026 02 AM PDT            1.78            184         0              Normal
  10/23/2026 03 AM PDT            1.78            184         0              Normal
  10/23/2026 04 AM PDT            1.79            185         +              Normal
  10/23/2026 05 AM PDT            1.79            185         0              Normal
  10/23/2026 06 AM PDT            1.79            185         0              Normal
  10/23/2026 07 AM PDT            1.79            185         0              Normal
  10/23/2026 08 AM PDT            1.79            185         0              Normal
  10/23/2026 09 AM PDT            1.78            184         -              Normal
  10/23/2026 10 AM PDT            1.79            185         +              Normal
  10/23/2026 11 AM PDT            1.78            184         -              Normal
  10/23/2026 12 PM PDT            1.78            184         0              Normal
  10/23/2026 01 PM PDT            1.78            184         0              Normal
  10/23/2026 02 PM PDT            1.78            184         0              Normal
  10/23/2026 03 PM PDT            1.77            182         -              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            1.77            182         0              Normal
  10/23/2026 07 PM PDT            1.78            184         +              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            1.79            185         +              Normal
  10/23/2026 11 PM PDT            1.79            185         0              Normal
  10/24/2026 12 AM PDT            1.79            185         0              Normal
  10/24/2026 01 AM PDT            1.79            185         0              Normal
  10/24/2026 02 AM PDT            1.79            185         0              Normal
  10/24/2026 03 AM PDT            1.79            185         0              Normal
  10/24/2026 04 AM PDT            1.79            185         0              Normal
  10/24/2026 05 AM PDT            1.79            185         0              Normal
  10/24/2026 06 AM PDT            1.79            185         0              Normal
  10/24/2026 07 AM PDT            1.79            185         0              Normal
  10/24/2026 08 AM PDT            1.80            186         +              Normal
  10/24/2026 09 AM PDT            1.79            185         -              Normal
  10/24/2026 10 AM PDT            1.79            185         0              Normal
  10/24/2026 11 AM PDT            1.79            185         0              Normal
  10/24/2026 12 PM PDT            1.79            185         0              Normal
  10/24/2026 01 PM PDT            1.80            186         +              Normal
  10/24/2026 02 PM PDT            1.79            185         -              Normal
  10/24/2026 03 PM PDT            1.79            185         0              Normal
  10/24/2026 04 PM PDT            1.79            185         0              Normal
  10/24/2026 05 PM PDT            1.78            184         -              Normal
  10/24/2026 06 PM PDT            1.78            184         0              Normal
  10/24/2026 07 PM PDT            1.78            184         0              Normal
  10/24/2026 08 PM PDT            1.78            184         0              Normal
  10/24/2026 09 PM PDT            1.78            184         0              Normal
  10/24/2026 10 PM PDT            1.79            185         +              Normal
  10/24/2026 11 PM PDT            1.79            185         0              Normal
  10/25/2026 12 AM PDT            1.79            185         0              Normal
  10/25/2026 01 AM PDT            1.79            185         0              Normal
  10/25/2026 02 AM PDT            1.79            185         0              Normal
  10/25/2026 03 AM PDT            1.79            185         0              Normal
  10/25/2026 04 AM PDT            1.79            185         0              Normal
  10/25/2026 05 AM PDT            1.79            185         0              Normal
  10/25/2026 06 AM PDT            1.78            184         -              Normal
  10/25/2026 07 AM PDT            1.78            184         0              Normal
  10/25/2026 08 AM PDT            1.79            185         +              Normal
  10/25/2026 09 AM PDT            1.79            185         0              Normal
  10/25/2026 10 AM PDT            1.79            185         0              Normal
  10/25/2026 11 AM PDT            1.79            185         0              Normal
  10/25/2026 12 PM PDT            1.80            186         +              Normal
  10/25/2026 01 PM PDT            1.80            186         0              Normal
  10/25/2026 02 PM PDT            1.79            185         -              Normal
  10/25/2026 03 PM PDT            1.78            184         -              Normal
  10/25/2026 04 PM PDT            1.78            184         0              Normal
  10/25/2026 05 PM PDT            1.78            184         0              Normal
  10/25/2026 06 PM PDT            1.79            185         +              Normal
  10/25/2026 07 PM PDT            1.78            184         -              Normal
  10/25/2026 08 PM PDT            1.78            184         0              Normal
  10/25/2026 09 PM PDT            1.78            184         0              Normal
  10/25/2026 10 PM PDT            1.79            185         +              Normal
  10/25/2026 11 PM PDT            1.79            185         0              Normal
  10/26/2026 12 AM PDT            1.79            185         0              Normal
  10/26/2026 01 AM PDT            1.80            186         +              Normal
  10/26/2026 02 AM PDT            1.80            186         0              Normal
  10/26/2026 03 AM PDT            1.80            186         0              Normal
  10/26/2026 04 AM PDT            1.80            186         0              Normal
  10/26/2026 05 AM PDT            1.80            186         0              Normal
  10/26/2026 06 AM PDT            1.80            186         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/26/2026 07 AM PDT            1.80            186                        Normal
  10/26/2026 08 AM PDT            1.80            186         0              Normal
  10/26/2026 09 AM PDT            1.80            186         0              Normal
  10/26/2026 10 AM PDT            1.80            186         0              Normal
  10/26/2026 11 AM PDT            1.80            186         0              Normal
  10/26/2026 12 PM PDT            1.80            186         0              Normal
  10/26/2026 01 PM PDT            1.80            186         0              Normal
  10/26/2026 02 PM PDT            1.80            186         0              Normal
  10/26/2026 03 PM PDT            1.80            186         0              Normal
  10/26/2026 04 PM PDT            1.80            186         0              Normal
  10/26/2026 05 PM PDT            1.80            186         0              Normal
  10/26/2026 06 PM PDT            1.80            186         0              Normal
  10/26/2026 07 PM PDT            1.80            186         0              Normal
  10/26/2026 08 PM PDT            1.80            186         0              Normal
  10/26/2026 09 PM PDT            1.80            186         0              Normal
  10/26/2026 10 PM PDT            1.79            185         -              Normal
  10/26/2026 11 PM PDT            1.79            185         0              Normal
  10/27/2026 12 AM PDT            1.79            185         0              Normal
  10/27/2026 01 AM PDT            1.79            185         0              Normal
  10/27/2026 02 AM PDT            1.79            185         0              Normal
  10/27/2026 03 AM PDT            1.79            185         0              Normal
  10/27/2026 04 AM PDT            1.79            185         0              Normal
  10/27/2026 05 AM PDT            1.79            185         0              Normal
  10/27/2026 06 AM PDT            1.79            185         0              Normal
  10/27/2026 07 AM PDT            1.79            185         0              Normal
  10/27/2026 08 AM PDT            1.79            185         0              Normal
  10/27/2026 09 AM PDT            1.79            185         0              Normal
  10/27/2026 10 AM PDT            1.79            185         0              Normal
  10/27/2026 11 AM PDT            1.79            185         0              Normal
  10/27/2026 12 PM PDT            1.79            185         0              Normal
  10/27/2026 01 PM PDT            1.79            185         0              Normal
  10/27/2026 02 PM PDT            1.79            185         0              Normal
  10/27/2026 03 PM PDT            1.79            185         0              Normal
  10/27/2026 04 PM PDT            1.79            185         0              Normal
  10/27/2026 05 PM PDT            1.79            185         0              Normal
  10/27/2026 06 PM PDT            1.80            186         +              Normal
  10/27/2026 07 PM PDT            1.80            186         0              Normal
  10/27/2026 08 PM PDT            1.80            186         0              Normal
  10/27/2026 09 PM PDT            1.80            186         0              Normal
  10/27/2026 10 PM PDT            1.80            186         0              Normal
  10/27/2026 11 PM PDT            1.80            186         0              Normal
  10/28/2026 12 AM PDT            1.80            186         0              Normal
  10/28/2026 01 AM PDT            1.80            186         0              Normal
  10/28/2026 02 AM PDT            1.80            186         0              Normal
  10/28/2026 03 AM PDT            1.80            186         0              Normal
  10/28/2026 04 AM PDT            1.80            186         0              Normal
  10/28/2026 05 AM PDT            1.80            186         0              Normal
  10/28/2026 06 AM PDT            1.80            186         0              Normal
  10/28/2026 07 AM PDT            1.80            186         0              Normal
  10/28/2026 08 AM PDT            1.80            186         0              Normal
  10/28/2026 09 AM PDT            1.80            186         0              Normal
  10/28/2026 10 AM PDT            1.80            186         0              Normal
  10/28/2026 11 AM PDT            1.80            186         0              Normal
  10/28/2026 12 PM PDT            1.80            186         0              Normal
  10/28/2026 01 PM PDT            1.80            186         0              Normal
  10/28/2026 02 PM PDT            1.80            186         0              Normal
  10/28/2026 03 PM PDT            1.80            186         0              Normal
  10/28/2026 04 PM PDT            1.80            186         0              Normal
  10/28/2026 05 PM PDT            1.80            186         0              Normal
  10/28/2026 06 PM PDT            1.80            186         0              Normal
  10/28/2026 07 PM PDT            1.80            186         0              Normal
  10/28/2026 08 PM PDT            1.80            186         0              Normal
  10/28/2026 09 PM PDT            1.80            186         0              Normal
  10/28/2026 10 PM PDT            1.80            186         0              Normal
  10/28/2026 11 PM PDT            1.80            186         0              Normal
  10/29/2026 12 AM PDT            1.80            186         0              Normal
  10/29/2026 01 AM PDT            1.80            186         0              Normal
  10/29/2026 02 AM PDT            1.80            186         0              Normal
  10/29/2026 03 AM PDT            1.80            186         0              Normal
  10/29/2026 04 AM PDT            1.80            186         0              Normal
  10/29/2026 05 AM PDT            1.80            186         0              Normal
  10/29/2026 06 AM PDT            1.80            186         0              Normal
  10/29/2026 07 AM PDT            1.80            186         0              Normal
  10/29/2026 08 AM PDT            1.80            186         0              Normal
  10/29/2026 09 AM PDT            1.80            186         0              Normal
  10/29/2026 10 AM PDT            1.80            186         0              Normal
  10/29/2026 11 AM PDT            1.80            186         0              Normal
  10/29/2026 12 PM PDT            1.80            186         0              Normal
  10/29/2026 01 PM PDT            1.80            186         0              Normal
  10/29/2026 02 PM PDT            1.80            186         0              Normal
  10/29/2026 03 PM PDT            1.80            186         0              Normal
  10/29/2026 04 PM PDT            1.80            186         0              Normal
  10/29/2026 05 PM PDT            1.80            186         0              Normal
  10/29/2026 06 PM PDT            1.80            186         0              Normal
  10/29/2026 07 PM PDT            1.80            186         0              Normal
  10/29/2026 08 PM PDT            1.80            186         0              Normal
  10/29/2026 09 PM PDT            1.80            186         0              Normal
  10/29/2026 10 PM PDT            1.80            186         0              Normal
  10/29/2026 11 PM PDT            1.80            186         0              Normal
  10/30/2026 12 AM PDT            1.80            186         0              Normal
  10/30/2026 01 AM PDT            1.80            186         0              Normal
  10/30/2026 02 AM PDT            1.80            186         0              Normal
  10/30/2026 03 AM PDT            1.80            186         0              Normal
  10/30/2026 04 AM PDT            1.80            186         0              Normal
  10/30/2026 05 AM PDT            1.80            186         0              Normal
  10/30/2026 06 AM PDT            1.80            186         0              Normal
  10/30/2026 07 AM PDT            1.80            186         0              Normal
  10/30/2026 08 AM PDT            1.80            186         0              Normal
  10/30/2026 09 AM PDT            1.80            186         0              Normal
  10/30/2026 10 AM PDT            1.80            186         0              Normal
  10/30/2026 11 AM PDT            1.80            186         0              Normal
  10/30/2026 12 PM PDT            1.80            186         0              Normal
  10/30/2026 01 PM PDT            1.80            186         0              Normal
  10/30/2026 02 PM PDT            1.80            186         0              Normal
  10/30/2026 03 PM PDT            1.80            186         0              Normal
  10/30/2026 04 PM PDT            1.80            186         0              Normal
  10/30/2026 05 PM PDT            1.80            186         0              Normal
  10/30/2026 06 PM PDT            1.80            186         0              Normal
  10/30/2026 07 PM PDT            1.80            186         0              Normal
  10/30/2026 08 PM PDT            1.80            186         0              Normal
  10/30/2026 09 PM PDT            1.80            186         0              Normal
  10/30/2026 10 PM PDT            1.80            186         0              Normal
  10/30/2026 11 PM PDT            1.80            186         0              Normal
  10/31/2026 12 AM PDT            1.80            186         0              Normal
  10/31/2026 01 AM PDT            1.80            186         0              Normal
  10/31/2026 02 AM PDT            1.80            186         0              Normal
  10/31/2026 03 AM PDT            1.80            186         0              Normal
  10/31/2026 04 AM PDT            1.80            186         0              Normal
  10/31/2026 05 AM PDT            1.80            186         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.