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: Apr 14 2026 at 7:53 AM PDTNext Issuance: Apr 14 2026 at 3:00 PM 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:  04/14/2026 at 07:54 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/12/2026 at 08:00 PM PDT
# Maximum Observed Stage:                       7.39 Feet
# Maximum Observed Flow:                        1994 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/14/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       6.38 Feet
# Maximum Forecast Flow:                        1511 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/09/2026 07 AM PDT            3.34            479                        Normal
  04/09/2026 08 AM PDT            3.35            482         +              Normal
  04/09/2026 09 AM PDT            3.34            479         -              Normal
  04/09/2026 10 AM PDT            3.34            479         0              Normal
  04/09/2026 11 AM PDT            3.33            477         -              Normal
  04/09/2026 12 PM PDT            3.33            477         0              Normal
  04/09/2026 01 PM PDT            3.33            477         0              Normal
  04/09/2026 02 PM PDT            3.33            477         0              Normal
  04/09/2026 03 PM PDT            3.32            475         -              Normal
  04/09/2026 04 PM PDT            3.32            475         0              Normal
  04/09/2026 05 PM PDT            3.33            477         +              Normal
  04/09/2026 06 PM PDT            3.33            477         0              Normal
  04/09/2026 07 PM PDT            3.32            475         -              Normal
  04/09/2026 08 PM PDT            3.32            475         0              Normal
  04/09/2026 09 PM PDT            3.32            475         0              Normal
  04/09/2026 10 PM PDT            3.31            473         -              Normal
  04/09/2026 11 PM PDT            3.32            475         +              Normal
  04/10/2026 12 AM PDT            3.31            473         -              Normal
  04/10/2026 01 AM PDT            3.31            473         0              Normal
  04/10/2026 02 AM PDT            3.31            473         0              Normal
  04/10/2026 03 AM PDT            3.31            473         0              Normal
  04/10/2026 04 AM PDT            3.31            473         0              Normal
  04/10/2026 05 AM PDT            3.32            475         +              Normal
  04/10/2026 06 AM PDT            3.34            479         +              Normal
  04/10/2026 07 AM PDT            3.37            486         +              Normal
  04/10/2026 08 AM PDT            3.39            491         +              Normal
  04/10/2026 09 AM PDT            3.39            491         0              Normal
  04/10/2026 10 AM PDT            3.41            495         +              Normal
  04/10/2026 11 AM PDT            3.45            504         +              Normal
  04/10/2026 12 PM PDT            3.51            518         +              Normal
  04/10/2026 01 PM PDT            3.58            535         +              Normal
  04/10/2026 02 PM PDT            3.66            554         +              Normal
  04/10/2026 03 PM PDT            3.81            592         +              Normal
  04/10/2026 04 PM PDT            3.91            617         +              Normal
  04/10/2026 05 PM PDT            3.96            631         +              Normal
  04/10/2026 06 PM PDT            4.02            647         +              Normal
  04/10/2026 07 PM PDT            4.11            672         +              Normal
  04/10/2026 08 PM PDT            4.17            689         +              Normal
  04/10/2026 09 PM PDT            4.22            703         +              Normal
  04/10/2026 10 PM PDT            4.21            700         -              Normal
  04/10/2026 11 PM PDT            4.19            695         -              Normal
  04/11/2026 12 AM PDT            4.17            689         -              Normal
  04/11/2026 01 AM PDT            4.16            686         -              Normal
  04/11/2026 02 AM PDT            4.14            680         -              Normal
  04/11/2026 03 AM PDT            4.16            686         +              Normal
  04/11/2026 04 AM PDT            4.25            712         +              Normal
  04/11/2026 05 AM PDT            4.43            764         +              Normal
  04/11/2026 06 AM PDT            4.64            830         +              Normal
  04/11/2026 07 AM PDT            4.77            874         +              Normal
  04/11/2026 08 AM PDT            4.81            888         +              Normal
  04/11/2026 09 AM PDT            4.81            888         0              Normal
  04/11/2026 10 AM PDT            4.76            870         -              Normal
  04/11/2026 11 AM PDT            4.70            850         -              Normal
  04/11/2026 12 PM PDT            4.65            833         -              Normal
  04/11/2026 01 PM PDT            4.62            823         -              Normal
  04/11/2026 02 PM PDT            4.58            809         -              Normal
  04/11/2026 03 PM PDT            4.57            806         -              Normal
  04/11/2026 04 PM PDT            4.57            806         0              Normal
  04/11/2026 05 PM PDT            4.63            826         +              Normal
  04/11/2026 06 PM PDT            4.66            836         +              Normal
  04/11/2026 07 PM PDT            4.69            846         +              Normal
  04/11/2026 08 PM PDT            4.76            870         +              Normal
  04/11/2026 09 PM PDT            4.93            930         +              Normal
  04/11/2026 10 PM PDT            5.12            999         +              Normal
  04/11/2026 11 PM PDT            5.36           1089         +              Normal
  04/12/2026 12 AM PDT            5.59           1178         +              Normal
  04/12/2026 01 AM PDT            5.76           1247         +              Normal
  04/12/2026 02 AM PDT            5.90           1304         +              Normal
  04/12/2026 03 AM PDT            6.03           1359         +              Normal
  04/12/2026 04 AM PDT            6.23           1445         +              Normal
  04/12/2026 05 AM PDT            6.47           1552         +              Normal
  04/12/2026 06 AM PDT            6.64           1630         +              Normal
  04/12/2026 07 AM PDT            6.76           1686         +              Normal
  04/12/2026 08 AM PDT            6.82           1714         +              Normal
  04/12/2026 09 AM PDT            6.83           1719         +              Normal
  04/12/2026 10 AM PDT            6.84           1723         +              Normal
  04/12/2026 11 AM PDT            6.89           1747         +              Normal
  04/12/2026 12 PM PDT            6.95           1776         +              Normal
  04/12/2026 01 PM PDT            7.04           1819         +              Normal
  04/12/2026 02 PM PDT            7.12           1859         +              Normal
  04/12/2026 03 PM PDT            7.21           1903         +              Normal
  04/12/2026 04 PM PDT            7.30           1948         +              Normal
  04/12/2026 05 PM PDT            7.35           1973         +              Normal
  04/12/2026 06 PM PDT            7.39           1994         +              Normal
  04/12/2026 07 PM PDT            7.39           1994         0              Normal
  04/12/2026 08 PM PDT            7.39           1994         0              Normal
  04/12/2026 09 PM PDT            7.38           1989         -              Normal
  04/12/2026 10 PM PDT            7.37           1983         -              Normal
  04/12/2026 11 PM PDT            7.37           1983         0              Normal
  04/13/2026 12 AM PDT            7.36           1978         -              Normal
  04/13/2026 01 AM PDT            7.34           1968         -              Normal
  04/13/2026 02 AM PDT            7.34           1968         0              Normal
  04/13/2026 03 AM PDT            7.31           1953         -              Normal
  04/13/2026 04 AM PDT            7.29           1943         -              Normal
  04/13/2026 05 AM PDT            7.28           1938         -              Normal
  04/13/2026 06 AM PDT            7.26           1928         -              Normal
  04/13/2026 07 AM PDT            7.26           1928         0              Normal
  04/13/2026 08 AM PDT            7.25           1923         -              Normal
  04/13/2026 09 AM PDT            7.24           1918         -              Normal
  04/13/2026 10 AM PDT            7.23           1913         -              Normal
  04/13/2026 11 AM PDT            7.22           1908         -              Normal
  04/13/2026 12 PM PDT            7.20           1898         -              Normal
  04/13/2026 01 PM PDT            7.17           1883         -              Normal
  04/13/2026 02 PM PDT            7.14           1868         -              Normal
  04/13/2026 03 PM PDT            7.11           1854         -              Normal
  04/13/2026 04 PM PDT            7.08           1839         -              Normal
  04/13/2026 05 PM PDT            7.04           1819         -              Normal
  04/13/2026 06 PM PDT            7.00           1800         -              Normal
  04/13/2026 07 PM PDT            6.96           1781         -              Normal
  04/13/2026 08 PM PDT            6.92           1761         -              Normal
  04/13/2026 09 PM PDT            6.88           1742         -              Normal
  04/13/2026 10 PM PDT            6.84           1723         -              Normal
  04/13/2026 11 PM PDT            6.80           1704         -              Normal
  04/14/2026 12 AM PDT            6.74           1676         -              Normal
  04/14/2026 01 AM PDT            6.69           1653         -              Normal
  04/14/2026 02 AM PDT            6.65           1634         -              Normal
  04/14/2026 03 AM PDT            6.60           1611         -              Normal
  04/14/2026 04 AM PDT            6.55           1588         -              Normal
  04/14/2026 05 AM PDT            6.49           1561         -              Normal
  04/14/2026 06 AM PDT            6.45           1543         -              Normal
  04/14/2026 07 AM PDT            6.42           1529         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/14/2026 08 AM PDT            6.38           1511                        Normal
  04/14/2026 09 AM PDT            6.34           1494         -              Normal
  04/14/2026 10 AM PDT            6.30           1476         -              Normal
  04/14/2026 11 AM PDT            6.26           1458         -              Normal
  04/14/2026 12 PM PDT            6.22           1441         -              Normal
  04/14/2026 01 PM PDT            6.18           1423         -              Normal
  04/14/2026 02 PM PDT            6.14           1406         -              Normal
  04/14/2026 03 PM PDT            6.11           1393         -              Normal
  04/14/2026 04 PM PDT            6.07           1376         -              Normal
  04/14/2026 05 PM PDT            6.04           1363         -              Normal
  04/14/2026 06 PM PDT            6.00           1346         -              Normal
  04/14/2026 07 PM PDT            5.95           1325         -              Normal
  04/14/2026 08 PM PDT            5.92           1313         -              Normal
  04/14/2026 09 PM PDT            5.88           1296         -              Normal
  04/14/2026 10 PM PDT            5.84           1279         -              Normal
  04/14/2026 11 PM PDT            5.80           1263         -              Normal
  04/15/2026 12 AM PDT            5.77           1251         -              Normal
  04/15/2026 01 AM PDT            5.73           1234         -              Normal
  04/15/2026 02 AM PDT            5.70           1222         -              Normal
  04/15/2026 03 AM PDT            5.67           1210         -              Normal
  04/15/2026 04 AM PDT            5.63           1194         -              Normal
  04/15/2026 05 AM PDT            5.60           1182         -              Normal
  04/15/2026 06 AM PDT            5.57           1170         -              Normal
  04/15/2026 07 AM PDT            5.54           1158         -              Normal
  04/15/2026 08 AM PDT            5.50           1143         -              Normal
  04/15/2026 09 AM PDT            5.47           1131         -              Normal
  04/15/2026 10 AM PDT            5.44           1119         -              Normal
  04/15/2026 11 AM PDT            5.41           1108         -              Normal
  04/15/2026 12 PM PDT            5.38           1096         -              Normal
  04/15/2026 01 PM PDT            5.36           1089         -              Normal
  04/15/2026 02 PM PDT            5.33           1077         -              Normal
  04/15/2026 03 PM PDT            5.30           1066         -              Normal
  04/15/2026 04 PM PDT            5.27           1054         -              Normal
  04/15/2026 05 PM PDT            5.24           1043         -              Normal
  04/15/2026 06 PM PDT            5.21           1032         -              Normal
  04/15/2026 07 PM PDT            5.18           1021         -              Normal
  04/15/2026 08 PM PDT            5.16           1013         -              Normal
  04/15/2026 09 PM PDT            5.13           1002         -              Normal
  04/15/2026 10 PM PDT            5.10            991         -              Normal
  04/15/2026 11 PM PDT            5.08            984         -              Normal
  04/16/2026 12 AM PDT            5.05            973         -              Normal
  04/16/2026 01 AM PDT            5.02            962         -              Normal
  04/16/2026 02 AM PDT            5.00            955         -              Normal
  04/16/2026 03 AM PDT            4.97            944         -              Normal
  04/16/2026 04 AM PDT            4.95            937         -              Normal
  04/16/2026 05 AM PDT            4.93            930         -              Normal
  04/16/2026 06 AM PDT            4.90            919         -              Normal
  04/16/2026 07 AM PDT            4.88            912         -              Normal
  04/16/2026 08 AM PDT            4.86            905         -              Normal
  04/16/2026 09 AM PDT            4.83            895         -              Normal
  04/16/2026 10 AM PDT            4.81            888         -              Normal
  04/16/2026 11 AM PDT            4.79            881         -              Normal
  04/16/2026 12 PM PDT            4.78            877         -              Normal
  04/16/2026 01 PM PDT            4.76            870         -              Normal
  04/16/2026 02 PM PDT            4.75            867         -              Normal
  04/16/2026 03 PM PDT            4.74            864         -              Normal
  04/16/2026 04 PM PDT            4.72            857         -              Normal
  04/16/2026 05 PM PDT            4.71            853         -              Normal
  04/16/2026 06 PM PDT            4.70            850         -              Normal
  04/16/2026 07 PM PDT            4.69            846         -              Normal
  04/16/2026 08 PM PDT            4.67            840         -              Normal
  04/16/2026 09 PM PDT            4.66            836         -              Normal
  04/16/2026 10 PM PDT            4.65            833         -              Normal
  04/16/2026 11 PM PDT            4.63            826         -              Normal
  04/17/2026 12 AM PDT            4.62            823         -              Normal
  04/17/2026 01 AM PDT            4.61            819         -              Normal
  04/17/2026 02 AM PDT            4.60            816         -              Normal
  04/17/2026 03 AM PDT            4.58            809         -              Normal
  04/17/2026 04 AM PDT            4.57            806         -              Normal
  04/17/2026 05 AM PDT            4.56            803         -              Normal
  04/17/2026 06 AM PDT            4.55            800         -              Normal
  04/17/2026 07 AM PDT            4.54            797         -              Normal
  04/17/2026 08 AM PDT            4.53            794         -              Normal
  04/17/2026 09 AM PDT            4.53            794         0              Normal
  04/17/2026 10 AM PDT            4.52            791         -              Normal
  04/17/2026 11 AM PDT            4.51            788         -              Normal
  04/17/2026 12 PM PDT            4.50            785         -              Normal
  04/17/2026 01 PM PDT            4.49            782         -              Normal
  04/17/2026 02 PM PDT            4.48            779         -              Normal
  04/17/2026 03 PM PDT            4.48            779         0              Normal
  04/17/2026 04 PM PDT            4.47            776         -              Normal
  04/17/2026 05 PM PDT            4.46            773         -              Normal
  04/17/2026 06 PM PDT            4.45            770         -              Normal
  04/17/2026 07 PM PDT            4.44            767         -              Normal
  04/17/2026 08 PM PDT            4.43            764         -              Normal
  04/17/2026 09 PM PDT            4.43            764         0              Normal
  04/17/2026 10 PM PDT            4.42            761         -              Normal
  04/17/2026 11 PM PDT            4.42            761         0              Normal
  04/18/2026 12 AM PDT            4.41            758         -              Normal
  04/18/2026 01 AM PDT            4.40            755         -              Normal
  04/18/2026 02 AM PDT            4.40            755         0              Normal
  04/18/2026 03 AM PDT            4.39            752         -              Normal
  04/18/2026 04 AM PDT            4.38            749         -              Normal
  04/18/2026 05 AM PDT            4.38            749         0              Normal
  04/18/2026 06 AM PDT            4.37            747         -              Normal
  04/18/2026 07 AM PDT            4.37            747         0              Normal
  04/18/2026 08 AM PDT            4.36            744         -              Normal
  04/18/2026 09 AM PDT            4.35            741         -              Normal
  04/18/2026 10 AM PDT            4.35            741         0              Normal
  04/18/2026 11 AM PDT            4.34            738         -              Normal
  04/18/2026 12 PM PDT            4.34            738         0              Normal
  04/18/2026 01 PM PDT            4.33            735         -              Normal
  04/18/2026 02 PM PDT            4.33            735         0              Normal
  04/18/2026 03 PM PDT            4.32            732         -              Normal
  04/18/2026 04 PM PDT            4.32            732         0              Normal
  04/18/2026 05 PM PDT            4.31            729         -              Normal
  04/18/2026 06 PM PDT            4.30            726         -              Normal
  04/18/2026 07 PM PDT            4.29            723         -              Normal
  04/18/2026 08 PM PDT            4.29            723         0              Normal
  04/18/2026 09 PM PDT            4.28            720         -              Normal
  04/18/2026 10 PM PDT            4.28            720         0              Normal
  04/18/2026 11 PM PDT            4.27            717         -              Normal
  04/19/2026 12 AM PDT            4.27            717         0              Normal
  04/19/2026 01 AM PDT            4.26            715         -              Normal
  04/19/2026 02 AM PDT            4.26            715         0              Normal
  04/19/2026 03 AM PDT            4.25            712         -              Normal
  04/19/2026 04 AM PDT            4.25            712         0              Normal
  04/19/2026 05 AM PDT            4.25            712         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.