RUSSIAN RIVER - HACIENDA BRIDGE (RIOC1)
Latitude: 38.51º NLongitude: 122.93º WElevation: 20 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jan 08 2026 at 1:44 PM PSTNext Issuance: Jan 09 2026 at 9:00 AM PST
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:  01/08/2026 at 01:45 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/06/2026 at 04:00 PM PST
# Maximum Observed Stage:                       32.78 Feet
# Maximum Observed Flow:                        33004 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/08/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       20.63 Feet
# Maximum Forecast Flow:                        13793 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/03/2026 01 PM PST           18.60          11348                        Normal
  01/03/2026 02 PM PST           18.75          11521         +              Normal
  01/03/2026 03 PM PST           18.92          11718         +              Normal
  01/03/2026 04 PM PST           19.13          11965         +              Normal
  01/03/2026 05 PM PST           19.25          12106         +              Normal
  01/03/2026 06 PM PST           19.39          12273         +              Normal
  01/03/2026 07 PM PST           19.61          12536         +              Normal
  01/03/2026 08 PM PST           19.69          12633         +              Normal
  01/03/2026 09 PM PST           19.79          12754         +              Normal
  01/03/2026 10 PM PST           19.87          12851         +              Normal
  01/03/2026 11 PM PST           19.93          12925         +              Normal
  01/04/2026 12 AM PST           20.02          13035         +              Normal
  01/04/2026 01 AM PST           20.02          13035         0              Normal
  01/04/2026 02 AM PST           20.02          13035         0              Normal
  01/04/2026 03 AM PST           20.15          13195         +              Normal
  01/04/2026 04 AM PST           20.21          13269         +              Normal
  01/04/2026 05 AM PST           20.26          13331         +              Normal
  01/04/2026 06 AM PST           20.23          13294         -              Normal
  01/04/2026 07 AM PST           20.26          13331         +              Normal
  01/04/2026 08 AM PST           20.32          13405         +              Normal
  01/04/2026 09 AM PST           20.44          13555         +              Normal
  01/04/2026 10 AM PST           20.52          13655         +              Normal
  01/04/2026 11 AM PST           20.62          13781         +              Normal
  01/04/2026 12 PM PST           20.69          13869         +              Normal
  01/04/2026 01 PM PST           20.84          14059         +              Normal
  01/04/2026 02 PM PST           20.95          14199         +              Normal
  01/04/2026 03 PM PST           20.98          14237         +              Normal
  01/04/2026 04 PM PST           21.04          14314         +              Normal
  01/04/2026 05 PM PST           21.12          14417         +              Normal
  01/04/2026 06 PM PST           21.14          14443         +              Normal
  01/04/2026 07 PM PST           21.15          14456         +              Normal
  01/04/2026 08 PM PST           21.16          14468         +              Normal
  01/04/2026 09 PM PST           21.15          14456         -              Normal
  01/04/2026 10 PM PST           21.18          14494         +              Normal
  01/04/2026 11 PM PST           21.23          14559         +              Normal
  01/05/2026 12 AM PST           21.27          14610         +              Normal
  01/05/2026 01 AM PST           21.25          14585         -              Normal
  01/05/2026 02 AM PST           21.28          14623         +              Normal
  01/05/2026 03 AM PST           21.32          14675         +              Normal
  01/05/2026 04 AM PST           21.32          14675         0              Normal
  01/05/2026 05 AM PST           21.32          14675         0              Normal
  01/05/2026 06 AM PST           21.43          14818         +              Normal
  01/05/2026 07 AM PST           21.48          14883         +              Normal
  01/05/2026 08 AM PST           21.51          14923         +              Normal
  01/05/2026 09 AM PST           21.61          15054         +              Normal
  01/05/2026 10 AM PST           21.76          15251         +              Normal
  01/05/2026 11 AM PST           21.95          15503         +              Normal
  01/05/2026 12 PM PST           22.20          15837         +              Normal
  01/05/2026 01 PM PST           22.62          16407         +              Normal
  01/05/2026 02 PM PST           23.09          17055         +              Normal
  01/05/2026 03 PM PST           23.73          17956         +              Normal
  01/05/2026 04 PM PST           24.29          18763         +              Normal
  01/05/2026 05 PM PST           24.89          19646         +              Normal
  01/05/2026 06 PM PST           25.40          20411         +              Normal
  01/05/2026 07 PM PST           25.97          21282         +              Normal
  01/05/2026 08 PM PST           26.49          22092         +              Normal
  01/05/2026 09 PM PST           26.98          22869         +              Normal
  01/05/2026 10 PM PST           27.52          23739         +              Normal
  01/05/2026 11 PM PST           28.12          24723         +              Normal
  01/06/2026 12 AM PST           28.69          25676         +              Normal
  01/06/2026 01 AM PST           29.28          26680         +              Normal
  01/06/2026 02 AM PST           29.70          27405         +              Normal
  01/06/2026 03 AM PST           30.17          28228         +              Normal
  01/06/2026 04 AM PST           30.56          28919         +              Normal
  01/06/2026 05 AM PST           30.89          29511         +              Normal
  01/06/2026 06 AM PST           31.29          30235         +      Action/Monitor
  01/06/2026 07 AM PST           31.55          30710         +      Action/Monitor
  01/06/2026 08 AM PST           31.74          31059         +      Action/Monitor
  01/06/2026 09 AM PST           31.95          31447         +      Action/Monitor
  01/06/2026 10 AM PST           32.14          31801         +      Action/Monitor
  01/06/2026 11 AM PST           32.35          32193         +      Action/Monitor
  01/06/2026 12 PM PST           32.51          32494         +      Action/Monitor
  01/06/2026 01 PM PST           32.59          32645         +      Action/Monitor
  01/06/2026 02 PM PST           32.71          32872         +      Action/Monitor
  01/06/2026 03 PM PST           32.73          32910         +      Action/Monitor
  01/06/2026 04 PM PST           32.78          33004         +      Action/Monitor
  01/06/2026 05 PM PST           32.76          32966         -      Action/Monitor
  01/06/2026 06 PM PST           32.76          32966         0      Action/Monitor
  01/06/2026 07 PM PST           32.66          32777         -      Action/Monitor
  01/06/2026 08 PM PST           32.62          32701         -      Action/Monitor
  01/06/2026 09 PM PST           32.57          32607         -      Action/Monitor
  01/06/2026 10 PM PST           32.41          32306         -      Action/Monitor
  01/06/2026 11 PM PST           32.35          32193         -      Action/Monitor
  01/07/2026 12 AM PST           32.20          31913         -      Action/Monitor
  01/07/2026 01 AM PST           32.00          31540         -      Action/Monitor
  01/07/2026 02 AM PST           31.74          31059         -      Action/Monitor
  01/07/2026 03 AM PST           31.62          30838         -      Action/Monitor
  01/07/2026 04 AM PST           31.36          30362         -      Action/Monitor
  01/07/2026 05 AM PST           31.09          29872         -      Action/Monitor
  01/07/2026 06 AM PST           30.80          29349         -              Normal
  01/07/2026 07 AM PST           30.54          28884         -              Normal
  01/07/2026 08 AM PST           30.18          28246         -              Normal
  01/07/2026 09 AM PST           29.83          27632         -              Normal
  01/07/2026 10 AM PST           29.51          27076         -              Normal
  01/07/2026 11 AM PST           29.15          26457         -              Normal
  01/07/2026 12 PM PST           28.66          25625         -              Normal
  01/07/2026 01 PM PST           28.34          25089         -              Normal
  01/07/2026 02 PM PST           27.91          24376         -              Normal
  01/07/2026 03 PM PST           27.50          23706         -              Normal
  01/07/2026 04 PM PST           27.02          22933         -              Normal
  01/07/2026 05 PM PST           26.60          22266         -              Normal
  01/07/2026 06 PM PST           26.19          21623         -              Normal
  01/07/2026 07 PM PST           25.75          20944         -              Normal
  01/07/2026 08 PM PST           25.34          20320         -              Normal
  01/07/2026 09 PM PST           24.99          19795         -              Normal
  01/07/2026 10 PM PST           24.70          19364         -              Normal
  01/07/2026 11 PM PST           24.29          18763         -              Normal
  01/08/2026 12 AM PST           23.99          18329         -              Normal
  01/08/2026 01 AM PST           23.70          17913         -              Normal
  01/08/2026 02 AM PST           23.37          17446         -              Normal
  01/08/2026 03 AM PST           23.08          17041         -              Normal
  01/08/2026 04 AM PST           22.86          16736         -              Normal
  01/08/2026 05 AM PST           22.60          16379         -              Normal
  01/08/2026 06 AM PST           22.32          15999         -              Normal
  01/08/2026 07 AM PST           22.05          15636         -              Normal
  01/08/2026 08 AM PST           21.79          15291         -              Normal
  01/08/2026 09 AM PST           21.60          15040         -              Normal
  01/08/2026 10 AM PST           21.38          14753         -              Normal
  01/08/2026 11 AM PST           21.18          14494         -              Normal
  01/08/2026 12 PM PST           20.98          14237         -              Normal
  01/08/2026 01 PM PST           20.80          14008         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/08/2026 02 PM PST           20.63          13793                        Normal
  01/08/2026 03 PM PST           20.46          13580         -              Normal
  01/08/2026 04 PM PST           20.31          13393         -              Normal
  01/08/2026 05 PM PST           20.16          13207         -              Normal
  01/08/2026 06 PM PST           20.01          13023         -              Normal
  01/08/2026 07 PM PST           19.84          12815         -              Normal
  01/08/2026 08 PM PST           19.69          12633         -              Normal
  01/08/2026 09 PM PST           19.54          12452         -              Normal
  01/08/2026 10 PM PST           19.40          12285         -              Normal
  01/08/2026 11 PM PST           19.27          12130         -              Normal
  01/09/2026 12 AM PST           19.14          11976         -              Normal
  01/09/2026 01 AM PST           19.02          11835         -              Normal
  01/09/2026 02 AM PST           18.90          11695         -              Normal
  01/09/2026 03 AM PST           18.78          11556         -              Normal
  01/09/2026 04 AM PST           18.67          11428         -              Normal
  01/09/2026 05 AM PST           18.57          11313         -              Normal
  01/09/2026 06 AM PST           18.47          11199         -              Normal
  01/09/2026 07 AM PST           18.37          11085         -              Normal
  01/09/2026 08 AM PST           18.25          10949         -              Normal
  01/09/2026 09 AM PST           18.15          10836         -              Normal
  01/09/2026 10 AM PST           18.05          10724         -              Normal
  01/09/2026 11 AM PST           17.95          10612         -              Normal
  01/09/2026 12 PM PST           17.86          10512         -              Normal
  01/09/2026 01 PM PST           17.77          10413         -              Normal
  01/09/2026 02 PM PST           17.69          10324         -              Normal
  01/09/2026 03 PM PST           17.61          10237         -              Normal
  01/09/2026 04 PM PST           17.54          10160         -              Normal
  01/09/2026 05 PM PST           17.47          10084         -              Normal
  01/09/2026 06 PM PST           17.40          10008         -              Normal
  01/09/2026 07 PM PST           17.33           9932         -              Normal
  01/09/2026 08 PM PST           17.27           9867         -              Normal
  01/09/2026 09 PM PST           17.21           9803         -              Normal
  01/09/2026 10 PM PST           17.15           9739         -              Normal
  01/09/2026 11 PM PST           17.09           9675         -              Normal
  01/10/2026 12 AM PST           17.04           9621         -              Normal
  01/10/2026 01 AM PST           16.98           9558         -              Normal
  01/10/2026 02 AM PST           16.93           9505         -              Normal
  01/10/2026 03 AM PST           16.88           9452         -              Normal
  01/10/2026 04 AM PST           16.84           9410         -              Normal
  01/10/2026 05 AM PST           16.79           9357         -              Normal
  01/10/2026 06 AM PST           16.74           9305         -              Normal
  01/10/2026 07 AM PST           16.70           9263         -              Normal
  01/10/2026 08 AM PST           16.64           9200         -              Normal
  01/10/2026 09 AM PST           16.57           9127         -              Normal
  01/10/2026 10 AM PST           16.51           9065         -              Normal
  01/10/2026 11 AM PST           16.45           9003         -              Normal
  01/10/2026 12 PM PST           16.38           8931         -              Normal
  01/10/2026 01 PM PST           16.31           8859         -              Normal
  01/10/2026 02 PM PST           16.25           8798         -              Normal
  01/10/2026 03 PM PST           16.18           8727         -              Normal
  01/10/2026 04 PM PST           16.12           8666         -              Normal
  01/10/2026 05 PM PST           16.07           8615         -              Normal
  01/10/2026 06 PM PST           16.02           8565         -              Normal
  01/10/2026 07 PM PST           15.97           8515         -              Normal
  01/10/2026 08 PM PST           15.92           8465         -              Normal
  01/10/2026 09 PM PST           15.88           8424         -              Normal
  01/10/2026 10 PM PST           15.83           8375         -              Normal
  01/10/2026 11 PM PST           15.79           8335         -              Normal
  01/11/2026 12 AM PST           15.75           8295         -              Normal
  01/11/2026 01 AM PST           15.72           8265         -              Normal
  01/11/2026 02 AM PST           15.68           8226         -              Normal
  01/11/2026 03 AM PST           15.64           8186         -              Normal
  01/11/2026 04 AM PST           15.61           8157         -              Normal
  01/11/2026 05 AM PST           15.58           8127         -              Normal
  01/11/2026 06 AM PST           15.54           8088         -              Normal
  01/11/2026 07 AM PST           15.51           8058         -              Normal
  01/11/2026 08 AM PST           15.48           8029         -              Normal
  01/11/2026 09 AM PST           15.45           8000         -              Normal
  01/11/2026 10 AM PST           15.42           7971         -              Normal
  01/11/2026 11 AM PST           15.39           7941         -              Normal
  01/11/2026 12 PM PST           15.36           7912         -              Normal
  01/11/2026 01 PM PST           15.34           7893         -              Normal
  01/11/2026 02 PM PST           15.31           7864         -              Normal
  01/11/2026 03 PM PST           15.28           7835         -              Normal
  01/11/2026 04 PM PST           15.26           7816         -              Normal
  01/11/2026 05 PM PST           15.23           7787         -              Normal
  01/11/2026 06 PM PST           15.20           7758         -              Normal
  01/11/2026 07 PM PST           15.18           7738         -              Normal
  01/11/2026 08 PM PST           15.15           7710         -              Normal
  01/11/2026 09 PM PST           15.13           7691         -              Normal
  01/11/2026 10 PM PST           15.11           7671         -              Normal
  01/11/2026 11 PM PST           15.08           7643         -              Normal
  01/12/2026 12 AM PST           15.06           7624         -              Normal
  01/12/2026 01 AM PST           15.03           7595         -              Normal
  01/12/2026 02 AM PST           15.01           7576         -              Normal
  01/12/2026 03 AM PST           14.99           7557         -              Normal
  01/12/2026 04 AM PST           14.96           7529         -              Normal
  01/12/2026 05 AM PST           14.94           7510         -              Normal
  01/12/2026 06 AM PST           14.92           7491         -              Normal
  01/12/2026 07 AM PST           14.89           7462         -              Normal
  01/12/2026 08 AM PST           14.87           7443         -              Normal
  01/12/2026 09 AM PST           14.85           7425         -              Normal
  01/12/2026 10 AM PST           14.83           7406         -              Normal
  01/12/2026 11 AM PST           14.80           7378         -              Normal
  01/12/2026 12 PM PST           14.78           7359         -              Normal
  01/12/2026 01 PM PST           14.76           7340         -              Normal
  01/12/2026 02 PM PST           14.74           7321         -              Normal
  01/12/2026 03 PM PST           14.72           7303         -              Normal
  01/12/2026 04 PM PST           14.70           7284         -              Normal
  01/12/2026 05 PM PST           14.67           7256         -              Normal
  01/12/2026 06 PM PST           14.65           7237         -              Normal
  01/12/2026 07 PM PST           14.63           7219         -              Normal
  01/12/2026 08 PM PST           14.61           7200         -              Normal
  01/12/2026 09 PM PST           14.59           7182         -              Normal
  01/12/2026 10 PM PST           14.57           7163         -              Normal
  01/12/2026 11 PM PST           14.55           7145         -              Normal
  01/13/2026 12 AM PST           14.53           7126         -              Normal
  01/13/2026 01 AM PST           14.52           7117         -              Normal
  01/13/2026 02 AM PST           14.50           7098         -              Normal
  01/13/2026 03 AM PST           14.48           7080         -              Normal
  01/13/2026 04 AM PST           14.46           7061         -              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.