National Weather Service California-Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

 | 

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: Aug 26 2026 at 7:03 AM PDTNext Issuance: Aug 27 2026 at 9:00 AM PDT
Action/Monitor: 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:  08/26/2026 at 07:04 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  08/21/2026 at 01:00 PM PDT
# Maximum Observed Stage:                       1.08 Feet
# Maximum Observed Flow:                        102 cfs
#
# Earliest Date & Time of Maximum Forecast:     08/29/2026 at 09:00 PM PDT
# Maximum Forecast Stage:                       1.15 Feet
# Maximum Forecast Flow:                        109 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  08/21/2026 07 AM PDT            1.07            101                        Normal
  08/21/2026 08 AM PDT            1.07            101         0              Normal
  08/21/2026 09 AM PDT            1.07            101         0              Normal
  08/21/2026 10 AM PDT            1.07            101         0              Normal
  08/21/2026 11 AM PDT            1.08            102         +              Normal
  08/21/2026 12 PM PDT            1.08            102         0              Normal
  08/21/2026 01 PM PDT            1.08            102         0              Normal
  08/21/2026 02 PM PDT            1.07            101         -              Normal
  08/21/2026 03 PM PDT            1.07            101         0              Normal
  08/21/2026 04 PM PDT            1.07            101         0              Normal
  08/21/2026 05 PM PDT            1.06            100         -              Normal
  08/21/2026 06 PM PDT            1.06            100         0              Normal
  08/21/2026 07 PM PDT            1.06            100         0              Normal
  08/21/2026 08 PM PDT            1.05             99         -              Normal
  08/21/2026 09 PM PDT            1.05             99         0              Normal
  08/21/2026 10 PM PDT            1.05             99         0              Normal
  08/21/2026 11 PM PDT            1.05             99         0              Normal
  08/22/2026 12 AM PDT            1.05             99         0              Normal
  08/22/2026 01 AM PDT            1.05             99         0              Normal
  08/22/2026 02 AM PDT            1.05             99         0              Normal
  08/22/2026 03 AM PDT            1.05             99         0              Normal
  08/22/2026 04 AM PDT            1.05             99         0              Normal
  08/22/2026 05 AM PDT            1.04             98         -              Normal
  08/22/2026 06 AM PDT            1.04             98         0              Normal
  08/22/2026 07 AM PDT            1.05             99         +              Normal
  08/22/2026 08 AM PDT            1.05             99         0              Normal
  08/22/2026 09 AM PDT            1.05             99         0              Normal
  08/22/2026 10 AM PDT            1.05             99         0              Normal
  08/22/2026 11 AM PDT            1.05             99         0              Normal
  08/22/2026 12 PM PDT            1.05             99         0              Normal
  08/22/2026 01 PM PDT            1.05             99         0              Normal
  08/22/2026 02 PM PDT            1.05             99         0              Normal
  08/22/2026 03 PM PDT            1.06            100         +              Normal
  08/22/2026 04 PM PDT            1.05             99         -              Normal
  08/22/2026 05 PM PDT            1.05             99         0              Normal
  08/22/2026 06 PM PDT            1.05             99         0              Normal
  08/22/2026 07 PM PDT            1.05             99         0              Normal
  08/22/2026 08 PM PDT            1.04             98         -              Normal
  08/22/2026 09 PM PDT            1.04             98         0              Normal
  08/22/2026 10 PM PDT            1.04             98         0              Normal
  08/22/2026 11 PM PDT            1.04             98         0              Normal
  08/23/2026 12 AM PDT            1.04             98         0              Normal
  08/23/2026 01 AM PDT            1.04             98         0              Normal
  08/23/2026 02 AM PDT            1.04             98         0              Normal
  08/23/2026 03 AM PDT            1.04             98         0              Normal
  08/23/2026 04 AM PDT            1.04             98         0              Normal
  08/23/2026 05 AM PDT            1.04             98         0              Normal
  08/23/2026 06 AM PDT            1.05             99         +              Normal
  08/23/2026 07 AM PDT            1.05             99         0              Normal
  08/23/2026 08 AM PDT            1.05             99         0              Normal
  08/23/2026 09 AM PDT            1.05             99         0              Normal
  08/23/2026 10 AM PDT            1.06            100         +              Normal
  08/23/2026 11 AM PDT            1.06            100         0              Normal
  08/23/2026 12 PM PDT            1.06            100         0              Normal
  08/23/2026 01 PM PDT            1.06            100         0              Normal
  08/23/2026 02 PM PDT            1.06            100         0              Normal
  08/23/2026 03 PM PDT            1.06            100         0              Normal
  08/23/2026 04 PM PDT            1.07            101         +              Normal
  08/23/2026 05 PM PDT            1.06            100         -              Normal
  08/23/2026 06 PM PDT            1.05             99         -              Normal
  08/23/2026 07 PM PDT            1.05             99         0              Normal
  08/23/2026 08 PM PDT            1.05             99         0              Normal
  08/23/2026 09 PM PDT            1.05             99         0              Normal
  08/23/2026 10 PM PDT            1.05             99         0              Normal
  08/23/2026 11 PM PDT            1.05             99         0              Normal
  08/24/2026 12 AM PDT            1.04             98         -              Normal
  08/24/2026 01 AM PDT            1.04             98         0              Normal
  08/24/2026 02 AM PDT            1.03             97         -              Normal
  08/24/2026 03 AM PDT            1.03             97         0              Normal
  08/24/2026 04 AM PDT            1.03             97         0              Normal
  08/24/2026 05 AM PDT            1.03             97         0              Normal
  08/24/2026 06 AM PDT            1.03             97         0              Normal
  08/24/2026 07 AM PDT            1.03             97         0              Normal
  08/24/2026 08 AM PDT            1.04             98         +              Normal
  08/24/2026 09 AM PDT            1.04             98         0              Normal
  08/24/2026 10 AM PDT            1.04             98         0              Normal
  08/24/2026 11 AM PDT            1.04             98         0              Normal
  08/24/2026 12 PM PDT            1.05             99         +              Normal
  08/24/2026 01 PM PDT            1.05             99         0              Normal
  08/24/2026 02 PM PDT            1.04             98         -              Normal
  08/24/2026 03 PM PDT            1.04             98         0              Normal
  08/24/2026 04 PM PDT            1.03             97         -              Normal
  08/24/2026 05 PM PDT            1.01             96         -              Normal
  08/24/2026 06 PM PDT            0.99             94         -              Normal
  08/24/2026 07 PM PDT            0.98             93         -              Normal
  08/24/2026 08 PM PDT            0.96             91         -              Normal
  08/24/2026 09 PM PDT            0.95             90         -              Normal
  08/24/2026 10 PM PDT            0.94             89         -              Normal
  08/24/2026 11 PM PDT            0.93             88         -              Normal
  08/25/2026 12 AM PDT            0.93             88         0              Normal
  08/25/2026 01 AM PDT            0.92             88         -              Normal
  08/25/2026 02 AM PDT            0.92             88         0              Normal
  08/25/2026 03 AM PDT            0.92             88         0              Normal
  08/25/2026 04 AM PDT            0.91             87         -              Normal
  08/25/2026 05 AM PDT            0.91             87         0              Normal
  08/25/2026 06 AM PDT            0.91             87         0              Normal
  08/25/2026 07 AM PDT            0.91             87         0              Normal
  08/25/2026 08 AM PDT            0.91             87         0              Normal
  08/25/2026 09 AM PDT            0.91             87         0              Normal
  08/25/2026 10 AM PDT            0.92             88         +              Normal
  08/25/2026 11 AM PDT            0.93             88         +              Normal
  08/25/2026 12 PM PDT            0.95             90         +              Normal
  08/25/2026 01 PM PDT            0.97             92         +              Normal
  08/25/2026 02 PM PDT            0.98             93         +              Normal
  08/25/2026 03 PM PDT            1.00             95         +              Normal
  08/25/2026 04 PM PDT            1.01             96         +              Normal
  08/25/2026 05 PM PDT            1.01             96         0              Normal
  08/25/2026 06 PM PDT            1.02             97         +              Normal
  08/25/2026 07 PM PDT            1.03             97         +              Normal
  08/25/2026 08 PM PDT            1.03             97         0              Normal
  08/25/2026 09 PM PDT            1.04             98         +              Normal
  08/25/2026 10 PM PDT            1.04             98         0              Normal
  08/25/2026 11 PM PDT            1.04             98         0              Normal
  08/26/2026 12 AM PDT            1.04             98         0              Normal
  08/26/2026 01 AM PDT            1.04             98         0              Normal
  08/26/2026 02 AM PDT            1.04             98         0              Normal
  08/26/2026 03 AM PDT            1.04             98         0              Normal
  08/26/2026 04 AM PDT            1.04             98         0              Normal
  08/26/2026 05 AM PDT            1.04             98         0              Normal
  08/26/2026 06 AM PDT            1.04             98         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  08/26/2026 07 AM PDT            1.04             98                        Normal
  08/26/2026 08 AM PDT            1.04             98         0              Normal
  08/26/2026 09 AM PDT            1.04             98         0              Normal
  08/26/2026 10 AM PDT            1.04             98         0              Normal
  08/26/2026 11 AM PDT            1.04             98         0              Normal
  08/26/2026 12 PM PDT            1.04             98         0              Normal
  08/26/2026 01 PM PDT            1.03             97         -              Normal
  08/26/2026 02 PM PDT            1.03             97         0              Normal
  08/26/2026 03 PM PDT            1.03             97         0              Normal
  08/26/2026 04 PM PDT            1.03             97         0              Normal
  08/26/2026 05 PM PDT            1.02             97         -              Normal
  08/26/2026 06 PM PDT            1.02             97         0              Normal
  08/26/2026 07 PM PDT            1.01             96         -              Normal
  08/26/2026 08 PM PDT            1.01             96         0              Normal
  08/26/2026 09 PM PDT            1.00             95         -              Normal
  08/26/2026 10 PM PDT            1.00             95         0              Normal
  08/26/2026 11 PM PDT            1.00             95         0              Normal
  08/27/2026 12 AM PDT            0.99             94         -              Normal
  08/27/2026 01 AM PDT            0.99             94         0              Normal
  08/27/2026 02 AM PDT            0.99             94         0              Normal
  08/27/2026 03 AM PDT            0.99             94         0              Normal
  08/27/2026 04 AM PDT            1.00             95         +              Normal
  08/27/2026 05 AM PDT            1.00             95         0              Normal
  08/27/2026 06 AM PDT            1.00             95         0              Normal
  08/27/2026 07 AM PDT            1.01             96         +              Normal
  08/27/2026 08 AM PDT            1.01             96         0              Normal
  08/27/2026 09 AM PDT            1.02             97         +              Normal
  08/27/2026 10 AM PDT            1.03             97         +              Normal
  08/27/2026 11 AM PDT            1.03             97         0              Normal
  08/27/2026 12 PM PDT            1.04             98         +              Normal
  08/27/2026 01 PM PDT            1.05             99         +              Normal
  08/27/2026 02 PM PDT            1.05             99         0              Normal
  08/27/2026 03 PM PDT            1.06            100         +              Normal
  08/27/2026 04 PM PDT            1.06            100         0              Normal
  08/27/2026 05 PM PDT            1.07            101         +              Normal
  08/27/2026 06 PM PDT            1.08            102         +              Normal
  08/27/2026 07 PM PDT            1.08            102         0              Normal
  08/27/2026 08 PM PDT            1.09            103         +              Normal
  08/27/2026 09 PM PDT            1.09            103         0              Normal
  08/27/2026 10 PM PDT            1.10            104         +              Normal
  08/27/2026 11 PM PDT            1.10            104         0              Normal
  08/28/2026 12 AM PDT            1.11            105         +              Normal
  08/28/2026 01 AM PDT            1.11            105         0              Normal
  08/28/2026 02 AM PDT            1.11            105         0              Normal
  08/28/2026 03 AM PDT            1.12            106         +              Normal
  08/28/2026 04 AM PDT            1.12            106         0              Normal
  08/28/2026 05 AM PDT            1.12            106         0              Normal
  08/28/2026 06 AM PDT            1.12            106         0              Normal
  08/28/2026 07 AM PDT            1.13            107         +              Normal
  08/28/2026 08 AM PDT            1.13            107         0              Normal
  08/28/2026 09 AM PDT            1.13            107         0              Normal
  08/28/2026 10 AM PDT            1.13            107         0              Normal
  08/28/2026 11 AM PDT            1.13            107         0              Normal
  08/28/2026 12 PM PDT            1.14            108         +              Normal
  08/28/2026 01 PM PDT            1.14            108         0              Normal
  08/28/2026 02 PM PDT            1.14            108         0              Normal
  08/28/2026 03 PM PDT            1.14            108         0              Normal
  08/28/2026 04 PM PDT            1.14            108         0              Normal
  08/28/2026 05 PM PDT            1.14            108         0              Normal
  08/28/2026 06 PM PDT            1.14            108         0              Normal
  08/28/2026 07 PM PDT            1.14            108         0              Normal
  08/28/2026 08 PM PDT            1.14            108         0              Normal
  08/28/2026 09 PM PDT            1.14            108         0              Normal
  08/28/2026 10 PM PDT            1.14            108         0              Normal
  08/28/2026 11 PM PDT            1.14            108         0              Normal
  08/29/2026 12 AM PDT            1.14            108         0              Normal
  08/29/2026 01 AM PDT            1.14            108         0              Normal
  08/29/2026 02 AM PDT            1.14            108         0              Normal
  08/29/2026 03 AM PDT            1.14            108         0              Normal
  08/29/2026 04 AM PDT            1.14            108         0              Normal
  08/29/2026 05 AM PDT            1.14            108         0              Normal
  08/29/2026 06 AM PDT            1.14            108         0              Normal
  08/29/2026 07 AM PDT            1.14            108         0              Normal
  08/29/2026 08 AM PDT            1.14            108         0              Normal
  08/29/2026 09 AM PDT            1.14            108         0              Normal
  08/29/2026 10 AM PDT            1.14            108         0              Normal
  08/29/2026 11 AM PDT            1.14            108         0              Normal
  08/29/2026 12 PM PDT            1.14            108         0              Normal
  08/29/2026 01 PM PDT            1.14            108         0              Normal
  08/29/2026 02 PM PDT            1.14            108         0              Normal
  08/29/2026 03 PM PDT            1.14            108         0              Normal
  08/29/2026 04 PM PDT            1.14            108         0              Normal
  08/29/2026 05 PM PDT            1.14            108         0              Normal
  08/29/2026 06 PM PDT            1.14            108         0              Normal
  08/29/2026 07 PM PDT            1.14            108         0              Normal
  08/29/2026 08 PM PDT            1.14            108         0              Normal
  08/29/2026 09 PM PDT            1.15            109         +              Normal
  08/29/2026 10 PM PDT            1.15            109         0              Normal
  08/29/2026 11 PM PDT            1.15            109         0              Normal
  08/30/2026 12 AM PDT            1.15            109         0              Normal
  08/30/2026 01 AM PDT            1.15            109         0              Normal
  08/30/2026 02 AM PDT            1.15            109         0              Normal
  08/30/2026 03 AM PDT            1.15            109         0              Normal
  08/30/2026 04 AM PDT            1.15            109         0              Normal
  08/30/2026 05 AM PDT            1.15            109         0              Normal
  08/30/2026 06 AM PDT            1.15            109         0              Normal
  08/30/2026 07 AM PDT            1.15            109         0              Normal
  08/30/2026 08 AM PDT            1.15            109         0              Normal
  08/30/2026 09 AM PDT            1.15            109         0              Normal
  08/30/2026 10 AM PDT            1.15            109         0              Normal
  08/30/2026 11 AM PDT            1.15            109         0              Normal
  08/30/2026 12 PM PDT            1.15            109         0              Normal
  08/30/2026 01 PM PDT            1.15            109         0              Normal
  08/30/2026 02 PM PDT            1.15            109         0              Normal
  08/30/2026 03 PM PDT            1.15            109         0              Normal
  08/30/2026 04 PM PDT            1.15            109         0              Normal
  08/30/2026 05 PM PDT            1.15            109         0              Normal
  08/30/2026 06 PM PDT            1.15            109         0              Normal
  08/30/2026 07 PM PDT            1.15            109         0              Normal
  08/30/2026 08 PM PDT            1.15            109         0              Normal
  08/30/2026 09 PM PDT            1.15            109         0              Normal
  08/30/2026 10 PM PDT            1.15            109         0              Normal
  08/30/2026 11 PM PDT            1.15            109         0              Normal
  08/31/2026 12 AM PDT            1.15            109         0              Normal
  08/31/2026 01 AM PDT            1.15            109         0              Normal
  08/31/2026 02 AM PDT            1.15            109         0              Normal
  08/31/2026 03 AM PDT            1.15            109         0              Normal
  08/31/2026 04 AM PDT            1.15            109         0              Normal
  08/31/2026 05 AM PDT            1.15            109         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.