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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: | Jun 18 2026 at 7:23 AM PDT | Next Issuance: | Jun 19 2026 at 9:00 AM PDT
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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: 06/18/2026 at 07:24 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 06/15/2026 at 04:00 PM PDT
# Maximum Observed Stage: 1.29 Feet
# Maximum Observed Flow: 131 cfs
#
# Earliest Date & Time of Maximum Forecast: 06/18/2026 at 07:00 AM PDT
# Maximum Forecast Stage: 1.25 Feet
# Maximum Forecast Flow: 127 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
06/13/2026 07 AM PDT 1.28 130 Normal
06/13/2026 08 AM PDT 1.28 130 0 Normal
06/13/2026 09 AM PDT 1.28 130 0 Normal
06/13/2026 10 AM PDT 1.28 130 0 Normal
06/13/2026 11 AM PDT 1.28 130 0 Normal
06/13/2026 12 PM PDT 1.28 130 0 Normal
06/13/2026 01 PM PDT 1.28 130 0 Normal
06/13/2026 02 PM PDT 1.28 130 0 Normal
06/13/2026 03 PM PDT 1.28 130 0 Normal
06/13/2026 04 PM PDT 1.28 130 0 Normal
06/13/2026 05 PM PDT 1.28 130 0 Normal
06/13/2026 06 PM PDT 1.27 129 - Normal
06/13/2026 07 PM PDT 1.27 129 0 Normal
06/13/2026 08 PM PDT 1.27 129 0 Normal
06/13/2026 09 PM PDT 1.27 129 0 Normal
06/13/2026 10 PM PDT 1.27 129 0 Normal
06/13/2026 11 PM PDT 1.27 129 0 Normal
06/14/2026 12 AM PDT 1.27 129 0 Normal
06/14/2026 01 AM PDT 1.26 128 - Normal
06/14/2026 02 AM PDT 1.26 128 0 Normal
06/14/2026 03 AM PDT 1.26 128 0 Normal
06/14/2026 04 AM PDT 1.26 128 0 Normal
06/14/2026 05 AM PDT 1.26 128 0 Normal
06/14/2026 06 AM PDT 1.26 128 0 Normal
06/14/2026 07 AM PDT 1.26 128 0 Normal
06/14/2026 08 AM PDT 1.26 128 0 Normal
06/14/2026 09 AM PDT 1.26 128 0 Normal
06/14/2026 10 AM PDT 1.27 129 + Normal
06/14/2026 11 AM PDT 1.27 129 0 Normal
06/14/2026 12 PM PDT 1.27 129 0 Normal
06/14/2026 01 PM PDT 1.27 129 0 Normal
06/14/2026 02 PM PDT 1.27 129 0 Normal
06/14/2026 03 PM PDT 1.26 128 - Normal
06/14/2026 04 PM PDT 1.27 129 + Normal
06/14/2026 05 PM PDT 1.27 129 0 Normal
06/14/2026 06 PM PDT 1.27 129 0 Normal
06/14/2026 07 PM PDT 1.27 129 0 Normal
06/14/2026 08 PM PDT 1.27 129 0 Normal
06/14/2026 09 PM PDT 1.28 130 + Normal
06/14/2026 10 PM PDT 1.28 130 0 Normal
06/14/2026 11 PM PDT 1.28 130 0 Normal
06/15/2026 12 AM PDT 1.28 130 0 Normal
06/15/2026 01 AM PDT 1.28 130 0 Normal
06/15/2026 02 AM PDT 1.28 130 0 Normal
06/15/2026 03 AM PDT 1.28 130 0 Normal
06/15/2026 04 AM PDT 1.28 130 0 Normal
06/15/2026 05 AM PDT 1.28 130 0 Normal
06/15/2026 06 AM PDT 1.28 130 0 Normal
06/15/2026 07 AM PDT 1.28 130 0 Normal
06/15/2026 08 AM PDT 1.28 130 0 Normal
06/15/2026 09 AM PDT 1.28 130 0 Normal
06/15/2026 10 AM PDT 1.28 130 0 Normal
06/15/2026 11 AM PDT 1.29 131 + Normal
06/15/2026 12 PM PDT 1.29 131 0 Normal
06/15/2026 01 PM PDT 1.29 131 0 Normal
06/15/2026 02 PM PDT 1.29 131 0 Normal
06/15/2026 03 PM PDT 1.29 131 0 Normal
06/15/2026 04 PM PDT 1.29 131 0 Normal
06/15/2026 05 PM PDT 1.28 130 - Normal
06/15/2026 06 PM PDT 1.28 130 0 Normal
06/15/2026 07 PM PDT 1.28 130 0 Normal
06/15/2026 08 PM PDT 1.28 130 0 Normal
06/15/2026 09 PM PDT 1.28 130 0 Normal
06/15/2026 10 PM PDT 1.28 130 0 Normal
06/15/2026 11 PM PDT 1.28 130 0 Normal
06/16/2026 12 AM PDT 1.27 129 - Normal
06/16/2026 01 AM PDT 1.27 129 0 Normal
06/16/2026 02 AM PDT 1.27 129 0 Normal
06/16/2026 03 AM PDT 1.27 129 0 Normal
06/16/2026 04 AM PDT 1.26 128 - Normal
06/16/2026 05 AM PDT 1.26 128 0 Normal
06/16/2026 06 AM PDT 1.26 128 0 Normal
06/16/2026 07 AM PDT 1.26 128 0 Normal
06/16/2026 08 AM PDT 1.26 128 0 Normal
06/16/2026 09 AM PDT 1.26 128 0 Normal
06/16/2026 10 AM PDT 1.26 128 0 Normal
06/16/2026 11 AM PDT 1.26 128 0 Normal
06/16/2026 12 PM PDT 1.26 128 0 Normal
06/16/2026 01 PM PDT 1.26 128 0 Normal
06/16/2026 02 PM PDT 1.26 128 0 Normal
06/16/2026 03 PM PDT 1.25 127 - Normal
06/16/2026 04 PM PDT 1.24 126 - Normal
06/16/2026 05 PM PDT 1.24 126 0 Normal
06/16/2026 06 PM PDT 1.24 126 0 Normal
06/16/2026 07 PM PDT 1.25 127 + Normal
06/16/2026 08 PM PDT 1.25 127 0 Normal
06/16/2026 09 PM PDT 1.25 127 0 Normal
06/16/2026 10 PM PDT 1.25 127 0 Normal
06/16/2026 11 PM PDT 1.26 128 + Normal
06/17/2026 12 AM PDT 1.26 128 0 Normal
06/17/2026 01 AM PDT 1.25 127 - Normal
06/17/2026 02 AM PDT 1.26 128 + Normal
06/17/2026 03 AM PDT 1.25 127 - Normal
06/17/2026 04 AM PDT 1.25 127 0 Normal
06/17/2026 05 AM PDT 1.25 127 0 Normal
06/17/2026 06 AM PDT 1.25 127 0 Normal
06/17/2026 07 AM PDT 1.25 127 0 Normal
06/17/2026 08 AM PDT 1.25 127 0 Normal
06/17/2026 09 AM PDT 1.25 127 0 Normal
06/17/2026 10 AM PDT 1.25 127 0 Normal
06/17/2026 11 AM PDT 1.25 127 0 Normal
06/17/2026 12 PM PDT 1.26 128 + Normal
06/17/2026 01 PM PDT 1.26 128 0 Normal
06/17/2026 02 PM PDT 1.26 128 0 Normal
06/17/2026 03 PM PDT 1.25 127 - Normal
06/17/2026 04 PM PDT 1.25 127 0 Normal
06/17/2026 05 PM PDT 1.25 127 0 Normal
06/17/2026 06 PM PDT 1.25 127 0 Normal
06/17/2026 07 PM PDT 1.25 127 0 Normal
06/17/2026 08 PM PDT 1.25 127 0 Normal
06/17/2026 09 PM PDT 1.25 127 0 Normal
06/17/2026 10 PM PDT 1.25 127 0 Normal
06/17/2026 11 PM PDT 1.25 127 0 Normal
06/18/2026 12 AM PDT 1.26 128 + Normal
06/18/2026 01 AM PDT 1.26 128 0 Normal
06/18/2026 02 AM PDT 1.26 128 0 Normal
06/18/2026 03 AM PDT 1.26 128 0 Normal
06/18/2026 04 AM PDT 1.26 128 0 Normal
06/18/2026 05 AM PDT 1.25 127 - Normal
06/18/2026 06 AM PDT 1.25 127 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
06/18/2026 07 AM PDT 1.25 127 Normal
06/18/2026 08 AM PDT 1.24 126 - Normal
06/18/2026 09 AM PDT 1.24 126 0 Normal
06/18/2026 10 AM PDT 1.24 126 0 Normal
06/18/2026 11 AM PDT 1.23 125 - Normal
06/18/2026 12 PM PDT 1.22 124 - Normal
06/18/2026 01 PM PDT 1.22 124 0 Normal
06/18/2026 02 PM PDT 1.21 123 - Normal
06/18/2026 03 PM PDT 1.21 123 0 Normal
06/18/2026 04 PM PDT 1.21 123 0 Normal
06/18/2026 05 PM PDT 1.20 122 - Normal
06/18/2026 06 PM PDT 1.19 121 - Normal
06/18/2026 07 PM PDT 1.19 121 0 Normal
06/18/2026 08 PM PDT 1.18 119 - Normal
06/18/2026 09 PM PDT 1.18 119 0 Normal
06/18/2026 10 PM PDT 1.17 118 - Normal
06/18/2026 11 PM PDT 1.17 118 0 Normal
06/19/2026 12 AM PDT 1.16 117 - Normal
06/19/2026 01 AM PDT 1.16 117 0 Normal
06/19/2026 02 AM PDT 1.16 117 0 Normal
06/19/2026 03 AM PDT 1.16 117 0 Normal
06/19/2026 04 AM PDT 1.15 116 - Normal
06/19/2026 05 AM PDT 1.15 116 0 Normal
06/19/2026 06 AM PDT 1.16 117 + Normal
06/19/2026 07 AM PDT 1.16 117 0 Normal
06/19/2026 08 AM PDT 1.16 117 0 Normal
06/19/2026 09 AM PDT 1.16 117 0 Normal
06/19/2026 10 AM PDT 1.16 117 0 Normal
06/19/2026 11 AM PDT 1.17 118 + Normal
06/19/2026 12 PM PDT 1.17 118 0 Normal
06/19/2026 01 PM PDT 1.17 118 0 Normal
06/19/2026 02 PM PDT 1.18 119 + Normal
06/19/2026 03 PM PDT 1.18 119 0 Normal
06/19/2026 04 PM PDT 1.18 119 0 Normal
06/19/2026 05 PM PDT 1.18 119 0 Normal
06/19/2026 06 PM PDT 1.18 119 0 Normal
06/19/2026 07 PM PDT 1.18 119 0 Normal
06/19/2026 08 PM PDT 1.18 119 0 Normal
06/19/2026 09 PM PDT 1.18 119 0 Normal
06/19/2026 10 PM PDT 1.18 119 0 Normal
06/19/2026 11 PM PDT 1.19 121 + Normal
06/20/2026 12 AM PDT 1.19 121 0 Normal
06/20/2026 01 AM PDT 1.19 121 0 Normal
06/20/2026 02 AM PDT 1.19 121 0 Normal
06/20/2026 03 AM PDT 1.19 121 0 Normal
06/20/2026 04 AM PDT 1.19 121 0 Normal
06/20/2026 05 AM PDT 1.19 121 0 Normal
06/20/2026 06 AM PDT 1.19 121 0 Normal
06/20/2026 07 AM PDT 1.19 121 0 Normal
06/20/2026 08 AM PDT 1.19 121 0 Normal
06/20/2026 09 AM PDT 1.19 121 0 Normal
06/20/2026 10 AM PDT 1.19 121 0 Normal
06/20/2026 11 AM PDT 1.19 121 0 Normal
06/20/2026 12 PM PDT 1.19 121 0 Normal
06/20/2026 01 PM PDT 1.19 121 0 Normal
06/20/2026 02 PM PDT 1.18 119 - Normal
06/20/2026 03 PM PDT 1.18 119 0 Normal
06/20/2026 04 PM PDT 1.18 119 0 Normal
06/20/2026 05 PM PDT 1.18 119 0 Normal
06/20/2026 06 PM PDT 1.17 118 - Normal
06/20/2026 07 PM PDT 1.17 118 0 Normal
06/20/2026 08 PM PDT 1.16 117 - Normal
06/20/2026 09 PM PDT 1.16 117 0 Normal
06/20/2026 10 PM PDT 1.16 117 0 Normal
06/20/2026 11 PM PDT 1.16 117 0 Normal
06/21/2026 12 AM PDT 1.16 117 0 Normal
06/21/2026 01 AM PDT 1.16 117 0 Normal
06/21/2026 02 AM PDT 1.15 116 - Normal
06/21/2026 03 AM PDT 1.15 116 0 Normal
06/21/2026 04 AM PDT 1.15 116 0 Normal
06/21/2026 05 AM PDT 1.15 116 0 Normal
06/21/2026 06 AM PDT 1.15 116 0 Normal
06/21/2026 07 AM PDT 1.15 116 0 Normal
06/21/2026 08 AM PDT 1.14 115 - Normal
06/21/2026 09 AM PDT 1.14 115 0 Normal
06/21/2026 10 AM PDT 1.14 115 0 Normal
06/21/2026 11 AM PDT 1.14 115 0 Normal
06/21/2026 12 PM PDT 1.14 115 0 Normal
06/21/2026 01 PM PDT 1.13 114 - Normal
06/21/2026 02 PM PDT 1.13 114 0 Normal
06/21/2026 03 PM PDT 1.13 114 0 Normal
06/21/2026 04 PM PDT 1.13 114 0 Normal
06/21/2026 05 PM PDT 1.13 114 0 Normal
06/21/2026 06 PM PDT 1.11 112 - Normal
06/21/2026 07 PM PDT 1.11 112 0 Normal
06/21/2026 08 PM PDT 1.11 112 0 Normal
06/21/2026 09 PM PDT 1.11 112 0 Normal
06/21/2026 10 PM PDT 1.11 112 0 Normal
06/21/2026 11 PM PDT 1.10 111 - Normal
06/22/2026 12 AM PDT 1.10 111 0 Normal
06/22/2026 01 AM PDT 1.10 111 0 Normal
06/22/2026 02 AM PDT 1.10 111 0 Normal
06/22/2026 03 AM PDT 1.10 111 0 Normal
06/22/2026 04 AM PDT 1.09 110 - Normal
06/22/2026 05 AM PDT 1.09 110 0 Normal
06/22/2026 06 AM PDT 1.09 110 0 Normal
06/22/2026 07 AM PDT 1.09 110 0 Normal
06/22/2026 08 AM PDT 1.09 110 0 Normal
06/22/2026 09 AM PDT 1.08 109 - Normal
06/22/2026 10 AM PDT 1.08 109 0 Normal
06/22/2026 11 AM PDT 1.08 109 0 Normal
06/22/2026 12 PM PDT 1.08 109 0 Normal
06/22/2026 01 PM PDT 1.08 109 0 Normal
06/22/2026 02 PM PDT 1.08 109 0 Normal
06/22/2026 03 PM PDT 1.08 109 0 Normal
06/22/2026 04 PM PDT 1.08 109 0 Normal
06/22/2026 05 PM PDT 1.08 109 0 Normal
06/22/2026 06 PM PDT 1.06 107 - Normal
06/22/2026 07 PM PDT 1.06 107 0 Normal
06/22/2026 08 PM PDT 1.06 107 0 Normal
06/22/2026 09 PM PDT 1.06 107 0 Normal
06/22/2026 10 PM PDT 1.06 107 0 Normal
06/22/2026 11 PM PDT 1.06 107 0 Normal
06/23/2026 12 AM PDT 1.06 107 0 Normal
06/23/2026 01 AM PDT 1.06 107 0 Normal
06/23/2026 02 AM PDT 1.06 107 0 Normal
06/23/2026 03 AM PDT 1.06 107 0 Normal
06/23/2026 04 AM PDT 1.05 106 - Normal
06/23/2026 05 AM PDT 1.05 106 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.
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