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: Nov 04 2026 at 7:28 AM PSTNext Issuance: Nov 04 2026 at 3:00 PM PST
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:  11/04/2026 at 07:29 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/03/2026 at 07:00 PM PST
# Maximum Observed Stage:                       1.98 Feet
# Maximum Observed Flow:                        212 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/04/2026 at 08:00 AM PST
# Maximum Forecast Stage:                       1.94 Feet
# Maximum Forecast Flow:                        206 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/30/2026 08 AM PDT            1.87            196                        Normal
  10/30/2026 09 AM PDT            1.87            196         0              Normal
  10/30/2026 10 AM PDT            1.88            198         +              Normal
  10/30/2026 11 AM PDT            1.88            198         0              Normal
  10/30/2026 12 PM PDT            1.89            199         +              Normal
  10/30/2026 01 PM PDT            1.89            199         0              Normal
  10/30/2026 02 PM PDT            1.90            201         +              Normal
  10/30/2026 03 PM PDT            1.90            201         0              Normal
  10/30/2026 04 PM PDT            1.90            201         0              Normal
  10/30/2026 05 PM PDT            1.90            201         0              Normal
  10/30/2026 06 PM PDT            1.90            201         0              Normal
  10/30/2026 07 PM PDT            1.90            201         0              Normal
  10/30/2026 08 PM PDT            1.90            201         0              Normal
  10/30/2026 09 PM PDT            1.90            201         0              Normal
  10/30/2026 10 PM PDT            1.90            201         0              Normal
  10/30/2026 11 PM PDT            1.90            201         0              Normal
  10/31/2026 12 AM PDT            1.90            201         0              Normal
  10/31/2026 01 AM PDT            1.90            201         0              Normal
  10/31/2026 02 AM PDT            1.91            202         +              Normal
  10/31/2026 03 AM PDT            1.91            202         0              Normal
  10/31/2026 04 AM PDT            1.91            202         0              Normal
  10/31/2026 05 AM PDT            1.91            202         0              Normal
  10/31/2026 06 AM PDT            1.92            204         +              Normal
  10/31/2026 07 AM PDT            1.91            202         -              Normal
  10/31/2026 08 AM PDT            1.92            204         +              Normal
  10/31/2026 09 AM PDT            1.92            204         0              Normal
  10/31/2026 10 AM PDT            1.92            204         0              Normal
  10/31/2026 11 AM PDT            1.92            204         0              Normal
  10/31/2026 12 PM PDT            1.92            204         0              Normal
  10/31/2026 01 PM PDT            1.92            204         0              Normal
  10/31/2026 02 PM PDT            1.92            204         0              Normal
  10/31/2026 03 PM PDT            1.92            204         0              Normal
  10/31/2026 04 PM PDT            1.92            204         0              Normal
  10/31/2026 05 PM PDT            1.92            204         0              Normal
  10/31/2026 06 PM PDT            1.92            204         0              Normal
  10/31/2026 07 PM PDT            1.91            202         -              Normal
  10/31/2026 08 PM PDT            1.92            204         +              Normal
  10/31/2026 09 PM PDT            1.92            204         0              Normal
  10/31/2026 10 PM PDT            1.92            204         0              Normal
  10/31/2026 11 PM PDT            1.92            204         0              Normal
  11/01/2026 12 AM PDT            1.92            204         0              Normal
  11/01/2026 01 AM PDT            1.92            204         0              Normal
  11/01/2026 01 AM PST            1.91            202         -              Normal
  11/01/2026 02 AM PST            1.91            202         0              Normal
  11/01/2026 03 AM PST            1.91            202         0              Normal
  11/01/2026 04 AM PST            1.90            201         -              Normal
  11/01/2026 05 AM PST            1.90            201         0              Normal
  11/01/2026 06 AM PST            1.90            201         0              Normal
  11/01/2026 07 AM PST            1.90            201         0              Normal
  11/01/2026 08 AM PST            1.90            201         0              Normal
  11/01/2026 09 AM PST            1.90            201         0              Normal
  11/01/2026 10 AM PST            1.91            202         +              Normal
  11/01/2026 11 AM PST            1.91            202         0              Normal
  11/01/2026 12 PM PST            1.91            202         0              Normal
  11/01/2026 01 PM PST            1.91            202         0              Normal
  11/01/2026 02 PM PST            1.90            201         -              Normal
  11/01/2026 03 PM PST            1.90            201         0              Normal
  11/01/2026 04 PM PST            1.90            201         0              Normal
  11/01/2026 05 PM PST            1.90            201         0              Normal
  11/01/2026 06 PM PST            1.90            201         0              Normal
  11/01/2026 07 PM PST            1.90            201         0              Normal
  11/01/2026 08 PM PST            1.90            201         0              Normal
  11/01/2026 09 PM PST            1.90            201         0              Normal
  11/01/2026 10 PM PST            1.90            201         0              Normal
  11/01/2026 11 PM PST            1.90            201         0              Normal
  11/02/2026 12 AM PST            1.90            201         0              Normal
  11/02/2026 01 AM PST            1.90            201         0              Normal
  11/02/2026 02 AM PST            1.90            201         0              Normal
  11/02/2026 03 AM PST            1.91            202         +              Normal
  11/02/2026 04 AM PST            1.91            202         0              Normal
  11/02/2026 05 AM PST            1.91            202         0              Normal
  11/02/2026 06 AM PST            1.91            202         0              Normal
  11/02/2026 07 AM PST            1.91            202         0              Normal
  11/02/2026 08 AM PST            1.91            202         0              Normal
  11/02/2026 09 AM PST            1.91            202         0              Normal
  11/02/2026 10 AM PST            1.91            202         0              Normal
  11/02/2026 11 AM PST            1.91            202         0              Normal
  11/02/2026 12 PM PST            1.91            202         0              Normal
  11/02/2026 01 PM PST            1.91            202         0              Normal
  11/02/2026 02 PM PST            1.90            201         -              Normal
  11/02/2026 03 PM PST            1.91            202         +              Normal
  11/02/2026 04 PM PST            1.91            202         0              Normal
  11/02/2026 05 PM PST            1.91            202         0              Normal
  11/02/2026 06 PM PST            1.91            202         0              Normal
  11/02/2026 07 PM PST            1.91            202         0              Normal
  11/02/2026 08 PM PST            1.91            202         0              Normal
  11/02/2026 09 PM PST            1.91            202         0              Normal
  11/02/2026 10 PM PST            1.91            202         0              Normal
  11/02/2026 11 PM PST            1.92            204         +              Normal
  11/03/2026 12 AM PST            1.92            204         0              Normal
  11/03/2026 01 AM PST            1.92            204         0              Normal
  11/03/2026 02 AM PST            1.93            205         +              Normal
  11/03/2026 03 AM PST            1.93            205         0              Normal
  11/03/2026 04 AM PST            1.93            205         0              Normal
  11/03/2026 05 AM PST            1.93            205         0              Normal
  11/03/2026 06 AM PST            1.93            205         0              Normal
  11/03/2026 07 AM PST            1.93            205         0              Normal
  11/03/2026 08 AM PST            1.93            205         0              Normal
  11/03/2026 09 AM PST            1.94            206         +              Normal
  11/03/2026 10 AM PST            1.95            208         +              Normal
  11/03/2026 11 AM PST            1.95            208         0              Normal
  11/03/2026 12 PM PST            1.95            208         0              Normal
  11/03/2026 01 PM PST            1.96            209         +              Normal
  11/03/2026 02 PM PST            1.96            209         0              Normal
  11/03/2026 03 PM PST            1.96            209         0              Normal
  11/03/2026 04 PM PST            1.97            211         +              Normal
  11/03/2026 05 PM PST            1.98            212         +              Normal
  11/03/2026 06 PM PST            1.98            212         0              Normal
  11/03/2026 07 PM PST            1.98            212         0              Normal
  11/03/2026 08 PM PST            1.97            211         -              Normal
  11/03/2026 09 PM PST            1.97            211         0              Normal
  11/03/2026 10 PM PST            1.97            211         0              Normal
  11/03/2026 11 PM PST            1.96            209         -              Normal
  11/04/2026 12 AM PST            1.96            209         0              Normal
  11/04/2026 01 AM PST            1.96            209         0              Normal
  11/04/2026 02 AM PST            1.95            208         -              Normal
  11/04/2026 03 AM PST            1.95            208         0              Normal
  11/04/2026 04 AM PST            1.95            208         0              Normal
  11/04/2026 05 AM PST            1.95            208         0              Normal
  11/04/2026 06 AM PST            1.95            208         0              Normal
  11/04/2026 07 AM PST            1.94            206         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/04/2026 08 AM PST            1.94            206                        Normal
  11/04/2026 09 AM PST            1.93            205         -              Normal
  11/04/2026 10 AM PST            1.93            205         0              Normal
  11/04/2026 11 AM PST            1.93            205         0              Normal
  11/04/2026 12 PM PST            1.92            204         -              Normal
  11/04/2026 01 PM PST            1.92            204         0              Normal
  11/04/2026 02 PM PST            1.91            202         -              Normal
  11/04/2026 03 PM PST            1.91            202         0              Normal
  11/04/2026 04 PM PST            1.90            201         -              Normal
  11/04/2026 05 PM PST            1.90            201         0              Normal
  11/04/2026 06 PM PST            1.89            199         -              Normal
  11/04/2026 07 PM PST            1.89            199         0              Normal
  11/04/2026 08 PM PST            1.88            198         -              Normal
  11/04/2026 09 PM PST            1.87            196         -              Normal
  11/04/2026 10 PM PST            1.86            195         -              Normal
  11/04/2026 11 PM PST            1.86            195         0              Normal
  11/05/2026 12 AM PST            1.85            193         -              Normal
  11/05/2026 01 AM PST            1.84            192         -              Normal
  11/05/2026 02 AM PST            1.84            192         0              Normal
  11/05/2026 03 AM PST            1.83            191         -              Normal
  11/05/2026 04 AM PST            1.82            189         -              Normal
  11/05/2026 05 AM PST            1.81            188         -              Normal
  11/05/2026 06 AM PST            1.80            186         -              Normal
  11/05/2026 07 AM PST            1.80            186         0              Normal
  11/05/2026 08 AM PST            1.79            185         -              Normal
  11/05/2026 09 AM PST            1.78            184         -              Normal
  11/05/2026 10 AM PST            1.78            184         0              Normal
  11/05/2026 11 AM PST            1.77            182         -              Normal
  11/05/2026 12 PM PST            1.76            181         -              Normal
  11/05/2026 01 PM PST            1.75            180         -              Normal
  11/05/2026 02 PM PST            1.75            180         0              Normal
  11/05/2026 03 PM PST            1.74            178         -              Normal
  11/05/2026 04 PM PST            1.73            177         -              Normal
  11/05/2026 05 PM PST            1.73            177         0              Normal
  11/05/2026 06 PM PST            1.72            176         -              Normal
  11/05/2026 07 PM PST            1.71            174         -              Normal
  11/05/2026 08 PM PST            1.70            173         -              Normal
  11/05/2026 09 PM PST            1.70            173         0              Normal
  11/05/2026 10 PM PST            1.69            172         -              Normal
  11/05/2026 11 PM PST            1.68            170         -              Normal
  11/06/2026 12 AM PST            1.68            170         0              Normal
  11/06/2026 01 AM PST            1.67            169         -              Normal
  11/06/2026 02 AM PST            1.67            169         0              Normal
  11/06/2026 03 AM PST            1.66            168         -              Normal
  11/06/2026 04 AM PST            1.66            168         0              Normal
  11/06/2026 05 AM PST            1.65            166         -              Normal
  11/06/2026 06 AM PST            1.65            166         0              Normal
  11/06/2026 07 AM PST            1.64            165         -              Normal
  11/06/2026 08 AM PST            1.64            165         0              Normal
  11/06/2026 09 AM PST            1.64            165         0              Normal
  11/06/2026 10 AM PST            1.63            164         -              Normal
  11/06/2026 11 AM PST            1.63            164         0              Normal
  11/06/2026 12 PM PST            1.63            164         0              Normal
  11/06/2026 01 PM PST            1.62            163         -              Normal
  11/06/2026 02 PM PST            1.62            163         0              Normal
  11/06/2026 03 PM PST            1.62            163         0              Normal
  11/06/2026 04 PM PST            1.62            163         0              Normal
  11/06/2026 05 PM PST            1.62            163         0              Normal
  11/06/2026 06 PM PST            1.62            163         0              Normal
  11/06/2026 07 PM PST            1.61            161         -              Normal
  11/06/2026 08 PM PST            1.61            161         0              Normal
  11/06/2026 09 PM PST            1.61            161         0              Normal
  11/06/2026 10 PM PST            1.61            161         0              Normal
  11/06/2026 11 PM PST            1.61            161         0              Normal
  11/07/2026 12 AM PST            1.61            161         0              Normal
  11/07/2026 01 AM PST            1.61            161         0              Normal
  11/07/2026 02 AM PST            1.61            161         0              Normal
  11/07/2026 03 AM PST            1.61            161         0              Normal
  11/07/2026 04 AM PST            1.60            160         -              Normal
  11/07/2026 05 AM PST            1.60            160         0              Normal
  11/07/2026 06 AM PST            1.60            160         0              Normal
  11/07/2026 07 AM PST            1.60            160         0              Normal
  11/07/2026 08 AM PST            1.60            160         0              Normal
  11/07/2026 09 AM PST            1.60            160         0              Normal
  11/07/2026 10 AM PST            1.60            160         0              Normal
  11/07/2026 11 AM PST            1.60            160         0              Normal
  11/07/2026 12 PM PST            1.60            160         0              Normal
  11/07/2026 01 PM PST            1.60            160         0              Normal
  11/07/2026 02 PM PST            1.60            160         0              Normal
  11/07/2026 03 PM PST            1.60            160         0              Normal
  11/07/2026 04 PM PST            1.60            160         0              Normal
  11/07/2026 05 PM PST            1.60            160         0              Normal
  11/07/2026 06 PM PST            1.60            160         0              Normal
  11/07/2026 07 PM PST            1.60            160         0              Normal
  11/07/2026 08 PM PST            1.60            160         0              Normal
  11/07/2026 09 PM PST            1.60            160         0              Normal
  11/07/2026 10 PM PST            1.60            160         0              Normal
  11/07/2026 11 PM PST            1.60            160         0              Normal
  11/08/2026 12 AM PST            1.60            160         0              Normal
  11/08/2026 01 AM PST            1.60            160         0              Normal
  11/08/2026 02 AM PST            1.60            160         0              Normal
  11/08/2026 03 AM PST            1.60            160         0              Normal
  11/08/2026 04 AM PST            1.60            160         0              Normal
  11/08/2026 05 AM PST            1.60            160         0              Normal
  11/08/2026 06 AM PST            1.60            160         0              Normal
  11/08/2026 07 AM PST            1.60            160         0              Normal
  11/08/2026 08 AM PST            1.60            160         0              Normal
  11/08/2026 09 AM PST            1.60            160         0              Normal
  11/08/2026 10 AM PST            1.60            160         0              Normal
  11/08/2026 11 AM PST            1.60            160         0              Normal
  11/08/2026 12 PM PST            1.60            160         0              Normal
  11/08/2026 01 PM PST            1.60            160         0              Normal
  11/08/2026 02 PM PST            1.60            160         0              Normal
  11/08/2026 03 PM PST            1.60            160         0              Normal
  11/08/2026 04 PM PST            1.60            160         0              Normal
  11/08/2026 05 PM PST            1.61            161         +              Normal
  11/08/2026 06 PM PST            1.61            161         0              Normal
  11/08/2026 07 PM PST            1.61            161         0              Normal
  11/08/2026 08 PM PST            1.61            161         0              Normal
  11/08/2026 09 PM PST            1.61            161         0              Normal
  11/08/2026 10 PM PST            1.61            161         0              Normal
  11/08/2026 11 PM PST            1.61            161         0              Normal
  11/09/2026 12 AM PST            1.61            161         0              Normal
  11/09/2026 01 AM PST            1.61            161         0              Normal
  11/09/2026 02 AM PST            1.61            161         0              Normal
  11/09/2026 03 AM PST            1.61            161         0              Normal
  11/09/2026 04 AM PST            1.61            161         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.