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RUSSIAN RIVER - HACIENDA BRIDGE (RIOC1)
| Latitude: 38.51º N | Longitude: 122.93º W | Elevation: 20 Feet | | Forecast Type: Unofficial Location |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Mar 01 2026 at 7:31 AM PST | Next Issuance: | Mar 02 2026 at 9:00 AM PST
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| Action/Monitor: 31.0 Feet | Minor Flood: 34.0 Feet | Moderate Flood: N/A | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Russian River - Hacienda Bridge (RIOC1)
#
# File Generation Time: 03/01/2026 at 07:33 AM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 02/26/2026 at 04:00 AM PST
# Maximum Observed Stage: 22.39 Feet
# Maximum Observed Flow: 16094 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/01/2026 at 08:00 AM PST
# Maximum Forecast Stage: 12.81 Feet
# Maximum Forecast Flow: 5620 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
02/24/2026 07 AM PST 9.52 3213 Normal
02/24/2026 08 AM PST 9.51 3206 - Normal
02/24/2026 09 AM PST 9.53 3219 + Normal
02/24/2026 10 AM PST 9.54 3225 + Normal
02/24/2026 11 AM PST 9.57 3245 + Normal
02/24/2026 12 PM PST 9.59 3257 + Normal
02/24/2026 01 PM PST 9.65 3296 + Normal
02/24/2026 02 PM PST 9.71 3335 + Normal
02/24/2026 03 PM PST 9.80 3393 + Normal
02/24/2026 04 PM PST 9.92 3472 + Normal
02/24/2026 05 PM PST 10.11 3598 + Normal
02/24/2026 06 PM PST 10.38 3781 + Normal
02/24/2026 07 PM PST 10.77 4053 + Normal
02/24/2026 08 PM PST 11.30 4437 + Normal
02/24/2026 09 PM PST 11.86 4861 + Normal
02/24/2026 10 PM PST 12.41 5294 + Normal
02/24/2026 11 PM PST 12.93 5720 + Normal
02/25/2026 12 AM PST 13.37 6092 + Normal
02/25/2026 01 AM PST 13.80 6467 + Normal
02/25/2026 02 AM PST 14.26 6879 + Normal
02/25/2026 03 AM PST 14.73 7312 + Normal
02/25/2026 04 AM PST 15.21 7767 + Normal
02/25/2026 05 AM PST 15.76 8305 + Normal
02/25/2026 06 AM PST 16.31 8859 + Normal
02/25/2026 07 AM PST 16.80 9368 + Normal
02/25/2026 08 AM PST 17.40 10008 + Normal
02/25/2026 09 AM PST 17.94 10601 + Normal
02/25/2026 10 AM PST 18.40 11119 + Normal
02/25/2026 11 AM PST 19.01 11824 + Normal
02/25/2026 12 PM PST 19.46 12356 + Normal
02/25/2026 01 PM PST 19.94 12937 + Normal
02/25/2026 02 PM PST 20.37 13468 + Normal
02/25/2026 03 PM PST 20.82 14034 + Normal
02/25/2026 04 PM PST 21.17 14481 + Normal
02/25/2026 05 PM PST 21.43 14818 + Normal
02/25/2026 06 PM PST 21.67 15132 + Normal
02/25/2026 07 PM PST 21.81 15317 + Normal
02/25/2026 08 PM PST 22.04 15623 + Normal
02/25/2026 09 PM PST 22.11 15717 + Normal
02/25/2026 10 PM PST 22.28 15945 + Normal
02/25/2026 11 PM PST 22.31 15985 + Normal
02/26/2026 12 AM PST 22.38 16080 + Normal
02/26/2026 01 AM PST 22.37 16067 - Normal
02/26/2026 02 AM PST 22.33 16012 - Normal
02/26/2026 03 AM PST 22.38 16080 + Normal
02/26/2026 04 AM PST 22.39 16094 + Normal
02/26/2026 05 AM PST 22.37 16067 - Normal
02/26/2026 06 AM PST 22.30 15972 - Normal
02/26/2026 07 AM PST 22.27 15932 - Normal
02/26/2026 08 AM PST 22.17 15797 - Normal
02/26/2026 09 AM PST 22.10 15703 - Normal
02/26/2026 10 AM PST 22.00 15570 - Normal
02/26/2026 11 AM PST 21.73 15211 - Normal
02/26/2026 12 PM PST 21.53 14949 - Normal
02/26/2026 01 PM PST 21.26 14598 - Normal
02/26/2026 02 PM PST 21.01 14276 - Normal
02/26/2026 03 PM PST 20.75 13945 - Normal
02/26/2026 04 PM PST 20.43 13542 - Normal
02/26/2026 05 PM PST 20.07 13096 - Normal
02/26/2026 06 PM PST 19.73 12681 - Normal
02/26/2026 07 PM PST 19.38 12261 - Normal
02/26/2026 08 PM PST 19.05 11871 - Normal
02/26/2026 09 PM PST 18.74 11509 - Normal
02/26/2026 10 PM PST 18.38 11096 - Normal
02/26/2026 11 PM PST 18.15 10836 - Normal
02/27/2026 12 AM PST 17.94 10601 - Normal
02/27/2026 01 AM PST 17.66 10291 - Normal
02/27/2026 02 AM PST 17.46 10073 - Normal
02/27/2026 03 AM PST 17.21 9803 - Normal
02/27/2026 04 AM PST 16.99 9568 - Normal
02/27/2026 05 AM PST 16.84 9410 - Normal
02/27/2026 06 AM PST 16.64 9200 - Normal
02/27/2026 07 AM PST 16.46 9014 - Normal
02/27/2026 08 AM PST 16.31 8859 - Normal
02/27/2026 09 AM PST 16.14 8686 - Normal
02/27/2026 10 AM PST 15.98 8525 - Normal
02/27/2026 11 AM PST 15.89 8434 - Normal
02/27/2026 12 PM PST 15.75 8295 - Normal
02/27/2026 01 PM PST 15.61 8157 - Normal
02/27/2026 02 PM PST 15.51 8058 - Normal
02/27/2026 03 PM PST 15.38 7932 - Normal
02/27/2026 04 PM PST 15.27 7825 - Normal
02/27/2026 05 PM PST 15.17 7729 - Normal
02/27/2026 06 PM PST 15.05 7614 - Normal
02/27/2026 07 PM PST 15.01 7576 - Normal
02/27/2026 08 PM PST 14.93 7500 - Normal
02/27/2026 09 PM PST 14.85 7425 - Normal
02/27/2026 10 PM PST 14.77 7349 - Normal
02/27/2026 11 PM PST 14.75 7331 - Normal
02/28/2026 12 AM PST 14.63 7219 - Normal
02/28/2026 01 AM PST 14.61 7200 - Normal
02/28/2026 02 AM PST 14.50 7098 - Normal
02/28/2026 03 AM PST 14.43 7034 - Normal
02/28/2026 04 AM PST 14.38 6988 - Normal
02/28/2026 05 AM PST 14.31 6924 - Normal
02/28/2026 06 AM PST 14.25 6870 - Normal
02/28/2026 07 AM PST 14.18 6806 - Normal
02/28/2026 08 AM PST 14.13 6761 - Normal
02/28/2026 09 AM PST 14.06 6698 - Normal
02/28/2026 10 AM PST 14.02 6662 - Normal
02/28/2026 11 AM PST 13.95 6600 - Normal
02/28/2026 12 PM PST 13.88 6537 - Normal
02/28/2026 01 PM PST 13.83 6493 - Normal
02/28/2026 02 PM PST 13.75 6422 - Normal
02/28/2026 03 PM PST 13.69 6370 - Normal
02/28/2026 04 PM PST 13.66 6343 - Normal
02/28/2026 05 PM PST 13.58 6274 - Normal
02/28/2026 06 PM PST 13.53 6230 - Normal
02/28/2026 07 PM PST 13.48 6187 - Normal
02/28/2026 08 PM PST 13.42 6135 - Normal
02/28/2026 09 PM PST 13.37 6092 - Normal
02/28/2026 10 PM PST 13.30 6032 - Normal
02/28/2026 11 PM PST 13.26 5998 - Normal
03/01/2026 12 AM PST 13.20 5947 - Normal
03/01/2026 01 AM PST 13.14 5896 - Normal
03/01/2026 02 AM PST 13.09 5854 - Normal
03/01/2026 03 AM PST 13.06 5829 - Normal
03/01/2026 04 AM PST 12.99 5770 - Normal
03/01/2026 05 AM PST 12.95 5737 - Normal
03/01/2026 06 AM PST 12.90 5695 - Normal
03/01/2026 07 AM PST 12.85 5653 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/01/2026 08 AM PST 12.81 5620 Normal
03/01/2026 09 AM PST 12.76 5579 - Normal
03/01/2026 10 AM PST 12.71 5538 - Normal
03/01/2026 11 AM PST 12.66 5497 - Normal
03/01/2026 12 PM PST 12.62 5464 - Normal
03/01/2026 01 PM PST 12.57 5424 - Normal
03/01/2026 02 PM PST 12.53 5391 - Normal
03/01/2026 03 PM PST 12.49 5359 - Normal
03/01/2026 04 PM PST 12.45 5326 - Normal
03/01/2026 05 PM PST 12.40 5286 - Normal
03/01/2026 06 PM PST 12.36 5254 - Normal
03/01/2026 07 PM PST 12.32 5222 - Normal
03/01/2026 08 PM PST 12.28 5190 - Normal
03/01/2026 09 PM PST 12.23 5150 - Normal
03/01/2026 10 PM PST 12.19 5119 - Normal
03/01/2026 11 PM PST 12.15 5087 - Normal
03/02/2026 12 AM PST 12.11 5056 - Normal
03/02/2026 01 AM PST 12.07 5024 - Normal
03/02/2026 02 AM PST 12.04 5001 - Normal
03/02/2026 03 AM PST 12.00 4969 - Normal
03/02/2026 04 AM PST 11.96 4938 - Normal
03/02/2026 05 AM PST 11.93 4915 - Normal
03/02/2026 06 AM PST 11.89 4884 - Normal
03/02/2026 07 AM PST 11.86 4861 - Normal
03/02/2026 08 AM PST 11.83 4838 - Normal
03/02/2026 09 AM PST 11.80 4815 - Normal
03/02/2026 10 AM PST 11.77 4792 - Normal
03/02/2026 11 AM PST 11.74 4769 - Normal
03/02/2026 12 PM PST 11.71 4746 - Normal
03/02/2026 01 PM PST 11.68 4723 - Normal
03/02/2026 02 PM PST 11.65 4700 - Normal
03/02/2026 03 PM PST 11.63 4685 - Normal
03/02/2026 04 PM PST 11.60 4662 - Normal
03/02/2026 05 PM PST 11.57 4639 - Normal
03/02/2026 06 PM PST 11.55 4624 - Normal
03/02/2026 07 PM PST 11.52 4602 - Normal
03/02/2026 08 PM PST 11.50 4587 - Normal
03/02/2026 09 PM PST 11.47 4564 - Normal
03/02/2026 10 PM PST 11.45 4549 - Normal
03/02/2026 11 PM PST 11.43 4534 - Normal
03/03/2026 12 AM PST 11.40 4512 - Normal
03/03/2026 01 AM PST 11.38 4497 - Normal
03/03/2026 02 AM PST 11.36 4482 - Normal
03/03/2026 03 AM PST 11.33 4460 - Normal
03/03/2026 04 AM PST 11.31 4445 - Normal
03/03/2026 05 AM PST 11.29 4430 - Normal
03/03/2026 06 AM PST 11.26 4408 - Normal
03/03/2026 07 AM PST 11.24 4393 - Normal
03/03/2026 08 AM PST 11.22 4378 - Normal
03/03/2026 09 AM PST 11.19 4356 - Normal
03/03/2026 10 AM PST 11.17 4342 - Normal
03/03/2026 11 AM PST 11.15 4327 - Normal
03/03/2026 12 PM PST 11.13 4312 - Normal
03/03/2026 01 PM PST 11.11 4298 - Normal
03/03/2026 02 PM PST 11.09 4283 - Normal
03/03/2026 03 PM PST 11.07 4269 - Normal
03/03/2026 04 PM PST 11.05 4254 - Normal
03/03/2026 05 PM PST 11.04 4247 - Normal
03/03/2026 06 PM PST 11.02 4233 - Normal
03/03/2026 07 PM PST 11.00 4218 - Normal
03/03/2026 08 PM PST 10.98 4204 - Normal
03/03/2026 09 PM PST 10.97 4196 - Normal
03/03/2026 10 PM PST 10.95 4182 - Normal
03/03/2026 11 PM PST 10.93 4168 - Normal
03/04/2026 12 AM PST 10.92 4160 - Normal
03/04/2026 01 AM PST 10.90 4146 - Normal
03/04/2026 02 AM PST 10.88 4132 - Normal
03/04/2026 03 AM PST 10.87 4125 - Normal
03/04/2026 04 AM PST 10.85 4110 - Normal
03/04/2026 05 AM PST 10.84 4103 - Normal
03/04/2026 06 AM PST 10.82 4089 - Normal
03/04/2026 07 AM PST 10.81 4082 - Normal
03/04/2026 08 AM PST 10.79 4068 - Normal
03/04/2026 09 AM PST 10.78 4061 - Normal
03/04/2026 10 AM PST 10.76 4046 - Normal
03/04/2026 11 AM PST 10.74 4032 - Normal
03/04/2026 12 PM PST 10.73 4025 - Normal
03/04/2026 01 PM PST 10.71 4011 - Normal
03/04/2026 02 PM PST 10.70 4004 - Normal
03/04/2026 03 PM PST 10.69 3997 - Normal
03/04/2026 04 PM PST 10.67 3983 - Normal
03/04/2026 05 PM PST 10.66 3976 - Normal
03/04/2026 06 PM PST 10.64 3962 - Normal
03/04/2026 07 PM PST 10.63 3955 - Normal
03/04/2026 08 PM PST 10.61 3941 - Normal
03/04/2026 09 PM PST 10.60 3934 - Normal
03/04/2026 10 PM PST 10.59 3927 - Normal
03/04/2026 11 PM PST 10.57 3913 - Normal
03/05/2026 12 AM PST 10.56 3906 - Normal
03/05/2026 01 AM PST 10.54 3892 - Normal
03/05/2026 02 AM PST 10.53 3885 - Normal
03/05/2026 03 AM PST 10.51 3871 - Normal
03/05/2026 04 AM PST 10.50 3864 - Normal
03/05/2026 05 AM PST 10.48 3850 - Normal
03/05/2026 06 AM PST 10.47 3843 - Normal
03/05/2026 07 AM PST 10.45 3830 - Normal
03/05/2026 08 AM PST 10.43 3816 - Normal
03/05/2026 09 AM PST 10.42 3809 - Normal
03/05/2026 10 AM PST 10.40 3795 - Normal
03/05/2026 11 AM PST 10.38 3781 - Normal
03/05/2026 12 PM PST 10.37 3774 - Normal
03/05/2026 01 PM PST 10.35 3761 - Normal
03/05/2026 02 PM PST 10.33 3747 - Normal
03/05/2026 03 PM PST 10.31 3733 - Normal
03/05/2026 04 PM PST 10.30 3727 - Normal
03/05/2026 05 PM PST 10.28 3713 - Normal
03/05/2026 06 PM PST 10.26 3699 - Normal
03/05/2026 07 PM PST 10.25 3693 - Normal
03/05/2026 08 PM PST 10.23 3679 - Normal
03/05/2026 09 PM PST 10.21 3665 - Normal
03/05/2026 10 PM PST 10.20 3659 - Normal
03/05/2026 11 PM PST 10.18 3645 - Normal
03/06/2026 12 AM PST 10.17 3638 - Normal
03/06/2026 01 AM PST 10.15 3625 - Normal
03/06/2026 02 AM PST 10.14 3618 - Normal
03/06/2026 03 AM PST 10.12 3605 - Normal
03/06/2026 04 AM PST 10.11 3598 - 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.
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