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 29 2026 at 7:40 AM PDTNext Issuance: Oct 30 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:  10/29/2026 at 07:41 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/28/2026 at 02:00 PM PDT
# Maximum Observed Stage:                       1.87 Feet
# Maximum Observed Flow:                        196 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/29/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       1.85 Feet
# Maximum Forecast Flow:                        193 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/24/2026 07 AM PDT            1.79            185                        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
  10/26/2026 07 AM PDT            1.81            188         +              Normal
  10/26/2026 08 AM PDT            1.81            188         0              Normal
  10/26/2026 09 AM PDT            1.80            186         -              Normal
  10/26/2026 10 AM PDT            1.81            188         +              Normal
  10/26/2026 11 AM PDT            1.81            188         0              Normal
  10/26/2026 12 PM PDT            1.81            188         0              Normal
  10/26/2026 01 PM PDT            1.81            188         0              Normal
  10/26/2026 02 PM PDT            1.81            188         0              Normal
  10/26/2026 03 PM PDT            1.80            186         -              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            1.81            188         +              Normal
  10/26/2026 09 PM PDT            1.81            188         0              Normal
  10/26/2026 10 PM PDT            1.82            189         +              Normal
  10/26/2026 11 PM PDT            1.82            189         0              Normal
  10/27/2026 12 AM PDT            1.82            189         0              Normal
  10/27/2026 01 AM PDT            1.82            189         0              Normal
  10/27/2026 02 AM PDT            1.83            191         +              Normal
  10/27/2026 03 AM PDT            1.83            191         0              Normal
  10/27/2026 04 AM PDT            1.83            191         0              Normal
  10/27/2026 05 AM PDT            1.83            191         0              Normal
  10/27/2026 06 AM PDT            1.83            191         0              Normal
  10/27/2026 07 AM PDT            1.83            191         0              Normal
  10/27/2026 08 AM PDT            1.84            192         +              Normal
  10/27/2026 09 AM PDT            1.84            192         0              Normal
  10/27/2026 10 AM PDT            1.84            192         0              Normal
  10/27/2026 11 AM PDT            1.85            193         +              Normal
  10/27/2026 12 PM PDT            1.85            193         0              Normal
  10/27/2026 01 PM PDT            1.85            193         0              Normal
  10/27/2026 02 PM PDT            1.85            193         0              Normal
  10/27/2026 03 PM PDT            1.85            193         0              Normal
  10/27/2026 04 PM PDT            1.84            192         -              Normal
  10/27/2026 05 PM PDT            1.84            192         0              Normal
  10/27/2026 06 PM PDT            1.84            192         0              Normal
  10/27/2026 07 PM PDT            1.84            192         0              Normal
  10/27/2026 08 PM PDT            1.84            192         0              Normal
  10/27/2026 09 PM PDT            1.84            192         0              Normal
  10/27/2026 10 PM PDT            1.84            192         0              Normal
  10/27/2026 11 PM PDT            1.84            192         0              Normal
  10/28/2026 12 AM PDT            1.85            193         +              Normal
  10/28/2026 01 AM PDT            1.85            193         0              Normal
  10/28/2026 02 AM PDT            1.85            193         0              Normal
  10/28/2026 03 AM PDT            1.86            195         +              Normal
  10/28/2026 04 AM PDT            1.86            195         0              Normal
  10/28/2026 05 AM PDT            1.86            195         0              Normal
  10/28/2026 06 AM PDT            1.86            195         0              Normal
  10/28/2026 07 AM PDT            1.86            195         0              Normal
  10/28/2026 08 AM PDT            1.86            195         0              Normal
  10/28/2026 09 AM PDT            1.86            195         0              Normal
  10/28/2026 10 AM PDT            1.86            195         0              Normal
  10/28/2026 11 AM PDT            1.86            195         0              Normal
  10/28/2026 12 PM PDT            1.87            196         +              Normal
  10/28/2026 01 PM PDT            1.87            196         0              Normal
  10/28/2026 02 PM PDT            1.87            196         0              Normal
  10/28/2026 03 PM PDT            1.86            195         -              Normal
  10/28/2026 04 PM PDT            1.86            195         0              Normal
  10/28/2026 05 PM PDT            1.86            195         0              Normal
  10/28/2026 06 PM PDT            1.85            193         -              Normal
  10/28/2026 07 PM PDT            1.85            193         0              Normal
  10/28/2026 08 PM PDT            1.85            193         0              Normal
  10/28/2026 09 PM PDT            1.85            193         0              Normal
  10/28/2026 10 PM PDT            1.85            193         0              Normal
  10/28/2026 11 PM PDT            1.85            193         0              Normal
  10/29/2026 12 AM PDT            1.85            193         0              Normal
  10/29/2026 01 AM PDT            1.85            193         0              Normal
  10/29/2026 02 AM PDT            1.85            193         0              Normal
  10/29/2026 03 AM PDT            1.85            193         0              Normal
  10/29/2026 04 AM PDT            1.85            193         0              Normal
  10/29/2026 05 AM PDT            1.85            193         0              Normal
  10/29/2026 06 AM PDT            1.85            193         0              Normal
  10/29/2026 07 AM PDT            1.85            193         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/29/2026 08 AM PDT            1.85            193                        Normal
  10/29/2026 09 AM PDT            1.84            192         -              Normal
  10/29/2026 10 AM PDT            1.84            192         0              Normal
  10/29/2026 11 AM PDT            1.84            192         0              Normal
  10/29/2026 12 PM PDT            1.84            192         0              Normal
  10/29/2026 01 PM PDT            1.83            191         -              Normal
  10/29/2026 02 PM PDT            1.83            191         0              Normal
  10/29/2026 03 PM PDT            1.83            191         0              Normal
  10/29/2026 04 PM PDT            1.82            189         -              Normal
  10/29/2026 05 PM PDT            1.82            189         0              Normal
  10/29/2026 06 PM PDT            1.82            189         0              Normal
  10/29/2026 07 PM PDT            1.82            189         0              Normal
  10/29/2026 08 PM PDT            1.82            189         0              Normal
  10/29/2026 09 PM PDT            1.82            189         0              Normal
  10/29/2026 10 PM PDT            1.82            189         0              Normal
  10/29/2026 11 PM PDT            1.82            189         0              Normal
  10/30/2026 12 AM PDT            1.82            189         0              Normal
  10/30/2026 01 AM PDT            1.82            189         0              Normal
  10/30/2026 02 AM PDT            1.82            189         0              Normal
  10/30/2026 03 AM PDT            1.82            189         0              Normal
  10/30/2026 04 AM PDT            1.82            189         0              Normal
  10/30/2026 05 AM PDT            1.82            189         0              Normal
  10/30/2026 06 AM PDT            1.82            189         0              Normal
  10/30/2026 07 AM PDT            1.82            189         0              Normal
  10/30/2026 08 AM PDT            1.81            188         -              Normal
  10/30/2026 09 AM PDT            1.81            188         0              Normal
  10/30/2026 10 AM PDT            1.81            188         0              Normal
  10/30/2026 11 AM PDT            1.81            188         0              Normal
  10/30/2026 12 PM PDT            1.81            188         0              Normal
  10/30/2026 01 PM PDT            1.81            188         0              Normal
  10/30/2026 02 PM PDT            1.81            188         0              Normal
  10/30/2026 03 PM PDT            1.81            188         0              Normal
  10/30/2026 04 PM PDT            1.81            188         0              Normal
  10/30/2026 05 PM PDT            1.81            188         0              Normal
  10/30/2026 06 PM PDT            1.81            188         0              Normal
  10/30/2026 07 PM PDT            1.81            188         0              Normal
  10/30/2026 08 PM PDT            1.81            188         0              Normal
  10/30/2026 09 PM PDT            1.81            188         0              Normal
  10/30/2026 10 PM PDT            1.81            188         0              Normal
  10/30/2026 11 PM PDT            1.81            188         0              Normal
  10/31/2026 12 AM PDT            1.80            186         -              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
  10/31/2026 06 AM PDT            1.80            186         0              Normal
  10/31/2026 07 AM PDT            1.80            186         0              Normal
  10/31/2026 08 AM PDT            1.80            186         0              Normal
  10/31/2026 09 AM PDT            1.80            186         0              Normal
  10/31/2026 10 AM PDT            1.80            186         0              Normal
  10/31/2026 11 AM PDT            1.81            188         +              Normal
  10/31/2026 12 PM PDT            1.81            188         0              Normal
  10/31/2026 01 PM PDT            1.81            188         0              Normal
  10/31/2026 02 PM PDT            1.81            188         0              Normal
  10/31/2026 03 PM PDT            1.81            188         0              Normal
  10/31/2026 04 PM PDT            1.81            188         0              Normal
  10/31/2026 05 PM PDT            1.81            188         0              Normal
  10/31/2026 06 PM PDT            1.81            188         0              Normal
  10/31/2026 07 PM PDT            1.81            188         0              Normal
  10/31/2026 08 PM PDT            1.81            188         0              Normal
  10/31/2026 09 PM PDT            1.81            188         0              Normal
  10/31/2026 10 PM PDT            1.81            188         0              Normal
  10/31/2026 11 PM PDT            1.81            188         0              Normal
  11/01/2026 12 AM PDT            1.81            188         0              Normal
  11/01/2026 01 AM PDT            1.81            188         0              Normal
  11/01/2026 01 AM PST            1.81            188         0              Normal
  11/01/2026 02 AM PST            1.81            188         0              Normal
  11/01/2026 03 AM PST            1.81            188         0              Normal
  11/01/2026 04 AM PST            1.81            188         0              Normal
  11/01/2026 05 AM PST            1.81            188         0              Normal
  11/01/2026 06 AM PST            1.81            188         0              Normal
  11/01/2026 07 AM PST            1.81            188         0              Normal
  11/01/2026 08 AM PST            1.81            188         0              Normal
  11/01/2026 09 AM PST            1.81            188         0              Normal
  11/01/2026 10 AM PST            1.81            188         0              Normal
  11/01/2026 11 AM PST            1.81            188         0              Normal
  11/01/2026 12 PM PST            1.81            188         0              Normal
  11/01/2026 01 PM PST            1.81            188         0              Normal
  11/01/2026 02 PM PST            1.81            188         0              Normal
  11/01/2026 03 PM PST            1.81            188         0              Normal
  11/01/2026 04 PM PST            1.81            188         0              Normal
  11/01/2026 05 PM PST            1.81            188         0              Normal
  11/01/2026 06 PM PST            1.81            188         0              Normal
  11/01/2026 07 PM PST            1.81            188         0              Normal
  11/01/2026 08 PM PST            1.81            188         0              Normal
  11/01/2026 09 PM PST            1.81            188         0              Normal
  11/01/2026 10 PM PST            1.81            188         0              Normal
  11/01/2026 11 PM PST            1.81            188         0              Normal
  11/02/2026 12 AM PST            1.81            188         0              Normal
  11/02/2026 01 AM PST            1.81            188         0              Normal
  11/02/2026 02 AM PST            1.81            188         0              Normal
  11/02/2026 03 AM PST            1.81            188         0              Normal
  11/02/2026 04 AM PST            1.81            188         0              Normal
  11/02/2026 05 AM PST            1.81            188         0              Normal
  11/02/2026 06 AM PST            1.81            188         0              Normal
  11/02/2026 07 AM PST            1.81            188         0              Normal
  11/02/2026 08 AM PST            1.81            188         0              Normal
  11/02/2026 09 AM PST            1.81            188         0              Normal
  11/02/2026 10 AM PST            1.81            188         0              Normal
  11/02/2026 11 AM PST            1.81            188         0              Normal
  11/02/2026 12 PM PST            1.81            188         0              Normal
  11/02/2026 01 PM PST            1.81            188         0              Normal
  11/02/2026 02 PM PST            1.81            188         0              Normal
  11/02/2026 03 PM PST            1.81            188         0              Normal
  11/02/2026 04 PM PST            1.81            188         0              Normal
  11/02/2026 05 PM PST            1.82            189         +              Normal
  11/02/2026 06 PM PST            1.82            189         0              Normal
  11/02/2026 07 PM PST            1.82            189         0              Normal
  11/02/2026 08 PM PST            1.82            189         0              Normal
  11/02/2026 09 PM PST            1.82            189         0              Normal
  11/02/2026 10 PM PST            1.82            189         0              Normal
  11/02/2026 11 PM PST            1.82            189         0              Normal
  11/03/2026 12 AM PST            1.82            189         0              Normal
  11/03/2026 01 AM PST            1.82            189         0              Normal
  11/03/2026 02 AM PST            1.82            189         0              Normal
  11/03/2026 03 AM PST            1.82            189         0              Normal
  11/03/2026 04 AM PST            1.82            189         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.