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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: | Jul 19 2026 at 8:06 AM PDT | Next Issuance: | Jul 20 2026 at 9:00 AM PDT
| |
| 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: 07/19/2026 at 08:07 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/19/2026 at 08:00 AM PDT
# Maximum Observed Stage: 1.24 Feet
# Maximum Observed Flow: 108 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/21/2026 at 05:00 AM PDT
# Maximum Forecast Stage: 1.29 Feet
# Maximum Forecast Flow: 113 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/14/2026 08 AM PDT 1.19 103 Normal
07/14/2026 09 AM PDT 1.19 103 0 Normal
07/14/2026 10 AM PDT 1.19 103 0 Normal
07/14/2026 11 AM PDT 1.19 103 0 Normal
07/14/2026 12 PM PDT 1.19 103 0 Normal
07/14/2026 01 PM PDT 1.19 103 0 Normal
07/14/2026 02 PM PDT 1.20 104 + Normal
07/14/2026 03 PM PDT 1.20 104 0 Normal
07/14/2026 04 PM PDT 1.19 103 - Normal
07/14/2026 05 PM PDT 1.19 103 0 Normal
07/14/2026 06 PM PDT 1.18 102 - Normal
07/14/2026 07 PM PDT 1.17 101 - Normal
07/14/2026 08 PM PDT 1.17 101 0 Normal
07/14/2026 09 PM PDT 1.17 101 0 Normal
07/14/2026 10 PM PDT 1.17 101 0 Normal
07/14/2026 11 PM PDT 1.16 100 - Normal
07/15/2026 12 AM PDT 1.16 100 0 Normal
07/15/2026 01 AM PDT 1.15 99 - Normal
07/15/2026 02 AM PDT 1.15 99 0 Normal
07/15/2026 03 AM PDT 1.15 99 0 Normal
07/15/2026 04 AM PDT 1.14 98 - Normal
07/15/2026 05 AM PDT 1.14 98 0 Normal
07/15/2026 06 AM PDT 1.14 98 0 Normal
07/15/2026 07 AM PDT 1.13 97 - Normal
07/15/2026 08 AM PDT 1.13 97 0 Normal
07/15/2026 09 AM PDT 1.13 97 0 Normal
07/15/2026 10 AM PDT 1.13 97 0 Normal
07/15/2026 11 AM PDT 1.13 97 0 Normal
07/15/2026 12 PM PDT 1.12 97 - Normal
07/15/2026 01 PM PDT 1.12 97 0 Normal
07/15/2026 02 PM PDT 1.12 97 0 Normal
07/15/2026 03 PM PDT 1.12 97 0 Normal
07/15/2026 04 PM PDT 1.12 97 0 Normal
07/15/2026 05 PM PDT 1.11 96 - Normal
07/15/2026 06 PM PDT 1.11 96 0 Normal
07/15/2026 07 PM PDT 1.10 95 - Normal
07/15/2026 08 PM PDT 1.10 95 0 Normal
07/15/2026 09 PM PDT 1.09 94 - Normal
07/15/2026 10 PM PDT 1.09 94 0 Normal
07/15/2026 11 PM PDT 1.08 93 - Normal
07/16/2026 12 AM PDT 1.08 93 0 Normal
07/16/2026 01 AM PDT 1.08 93 0 Normal
07/16/2026 02 AM PDT 1.08 93 0 Normal
07/16/2026 03 AM PDT 1.08 93 0 Normal
07/16/2026 04 AM PDT 1.07 92 - Normal
07/16/2026 05 AM PDT 1.08 93 + Normal
07/16/2026 06 AM PDT 1.08 93 0 Normal
07/16/2026 07 AM PDT 1.07 92 - Normal
07/16/2026 08 AM PDT 1.08 93 + Normal
07/16/2026 09 AM PDT 1.07 92 - Normal
07/16/2026 10 AM PDT 1.08 93 + Normal
07/16/2026 11 AM PDT 1.08 93 0 Normal
07/16/2026 12 PM PDT 1.08 93 0 Normal
07/16/2026 01 PM PDT 1.08 93 0 Normal
07/16/2026 02 PM PDT 1.08 93 0 Normal
07/16/2026 03 PM PDT 1.09 94 + Normal
07/16/2026 04 PM PDT 1.08 93 - Normal
07/16/2026 05 PM PDT 1.09 94 + Normal
07/16/2026 06 PM PDT 1.08 93 - Normal
07/16/2026 07 PM PDT 1.08 93 0 Normal
07/16/2026 08 PM PDT 1.08 93 0 Normal
07/16/2026 09 PM PDT 1.07 92 - Normal
07/16/2026 10 PM PDT 1.07 92 0 Normal
07/16/2026 11 PM PDT 1.07 92 0 Normal
07/17/2026 12 AM PDT 1.07 92 0 Normal
07/17/2026 01 AM PDT 1.07 92 0 Normal
07/17/2026 02 AM PDT 1.07 92 0 Normal
07/17/2026 03 AM PDT 1.08 93 + Normal
07/17/2026 04 AM PDT 1.09 94 + Normal
07/17/2026 05 AM PDT 1.09 94 0 Normal
07/17/2026 06 AM PDT 1.10 95 + Normal
07/17/2026 07 AM PDT 1.10 95 0 Normal
07/17/2026 08 AM PDT 1.11 96 + Normal
07/17/2026 09 AM PDT 1.11 96 0 Normal
07/17/2026 10 AM PDT 1.12 97 + Normal
07/17/2026 11 AM PDT 1.12 97 0 Normal
07/17/2026 12 PM PDT 1.12 97 0 Normal
07/17/2026 01 PM PDT 1.12 97 0 Normal
07/17/2026 02 PM PDT 1.12 97 0 Normal
07/17/2026 03 PM PDT 1.12 97 0 Normal
07/17/2026 04 PM PDT 1.12 97 0 Normal
07/17/2026 05 PM PDT 1.12 97 0 Normal
07/17/2026 06 PM PDT 1.12 97 0 Normal
07/17/2026 07 PM PDT 1.12 97 0 Normal
07/17/2026 08 PM PDT 1.12 97 0 Normal
07/17/2026 09 PM PDT 1.12 97 0 Normal
07/17/2026 10 PM PDT 1.12 97 0 Normal
07/17/2026 11 PM PDT 1.12 97 0 Normal
07/18/2026 12 AM PDT 1.12 97 0 Normal
07/18/2026 01 AM PDT 1.13 97 + Normal
07/18/2026 02 AM PDT 1.13 97 0 Normal
07/18/2026 03 AM PDT 1.14 98 + Normal
07/18/2026 04 AM PDT 1.14 98 0 Normal
07/18/2026 05 AM PDT 1.14 98 0 Normal
07/18/2026 06 AM PDT 1.15 99 + Normal
07/18/2026 07 AM PDT 1.16 100 + Normal
07/18/2026 08 AM PDT 1.16 100 0 Normal
07/18/2026 09 AM PDT 1.17 101 + Normal
07/18/2026 10 AM PDT 1.17 101 0 Normal
07/18/2026 11 AM PDT 1.18 102 + Normal
07/18/2026 12 PM PDT 1.18 102 0 Normal
07/18/2026 01 PM PDT 1.18 102 0 Normal
07/18/2026 02 PM PDT 1.18 102 0 Normal
07/18/2026 03 PM PDT 1.19 103 + Normal
07/18/2026 04 PM PDT 1.20 104 + Normal
07/18/2026 05 PM PDT 1.20 104 0 Normal
07/18/2026 06 PM PDT 1.20 104 0 Normal
07/18/2026 07 PM PDT 1.20 104 0 Normal
07/18/2026 08 PM PDT 1.20 104 0 Normal
07/18/2026 09 PM PDT 1.20 104 0 Normal
07/18/2026 10 PM PDT 1.20 104 0 Normal
07/18/2026 11 PM PDT 1.20 104 0 Normal
07/19/2026 12 AM PDT 1.21 105 + Normal
07/19/2026 01 AM PDT 1.21 105 0 Normal
07/19/2026 02 AM PDT 1.21 105 0 Normal
07/19/2026 03 AM PDT 1.22 106 + Normal
07/19/2026 04 AM PDT 1.22 106 0 Normal
07/19/2026 05 AM PDT 1.23 107 + Normal
07/19/2026 06 AM PDT 1.23 107 0 Normal
07/19/2026 07 AM PDT 1.23 107 0 Normal
07/19/2026 08 AM PDT 1.24 108 + Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/19/2026 09 AM PDT 1.24 108 Normal
07/19/2026 10 AM PDT 1.24 108 0 Normal
07/19/2026 11 AM PDT 1.24 108 0 Normal
07/19/2026 12 PM PDT 1.24 108 0 Normal
07/19/2026 01 PM PDT 1.24 108 0 Normal
07/19/2026 02 PM PDT 1.24 108 0 Normal
07/19/2026 03 PM PDT 1.24 108 0 Normal
07/19/2026 04 PM PDT 1.24 108 0 Normal
07/19/2026 05 PM PDT 1.24 108 0 Normal
07/19/2026 06 PM PDT 1.25 109 + Normal
07/19/2026 07 PM PDT 1.24 108 - Normal
07/19/2026 08 PM PDT 1.24 108 0 Normal
07/19/2026 09 PM PDT 1.24 108 0 Normal
07/19/2026 10 PM PDT 1.24 108 0 Normal
07/19/2026 11 PM PDT 1.24 108 0 Normal
07/20/2026 12 AM PDT 1.24 108 0 Normal
07/20/2026 01 AM PDT 1.24 108 0 Normal
07/20/2026 02 AM PDT 1.24 108 0 Normal
07/20/2026 03 AM PDT 1.24 108 0 Normal
07/20/2026 04 AM PDT 1.24 108 0 Normal
07/20/2026 05 AM PDT 1.24 108 0 Normal
07/20/2026 06 AM PDT 1.25 109 + Normal
07/20/2026 07 AM PDT 1.25 109 0 Normal
07/20/2026 08 AM PDT 1.25 109 0 Normal
07/20/2026 09 AM PDT 1.25 109 0 Normal
07/20/2026 10 AM PDT 1.25 109 0 Normal
07/20/2026 11 AM PDT 1.25 109 0 Normal
07/20/2026 12 PM PDT 1.25 109 0 Normal
07/20/2026 01 PM PDT 1.26 110 + Normal
07/20/2026 02 PM PDT 1.26 110 0 Normal
07/20/2026 03 PM PDT 1.26 110 0 Normal
07/20/2026 04 PM PDT 1.26 110 0 Normal
07/20/2026 05 PM PDT 1.27 111 + Normal
07/20/2026 06 PM PDT 1.27 111 0 Normal
07/20/2026 07 PM PDT 1.27 111 0 Normal
07/20/2026 08 PM PDT 1.27 111 0 Normal
07/20/2026 09 PM PDT 1.28 112 + Normal
07/20/2026 10 PM PDT 1.28 112 0 Normal
07/20/2026 11 PM PDT 1.28 112 0 Normal
07/21/2026 12 AM PDT 1.28 112 0 Normal
07/21/2026 01 AM PDT 1.28 112 0 Normal
07/21/2026 02 AM PDT 1.28 112 0 Normal
07/21/2026 03 AM PDT 1.28 112 0 Normal
07/21/2026 04 AM PDT 1.28 112 0 Normal
07/21/2026 05 AM PDT 1.29 113 + Normal
07/21/2026 06 AM PDT 1.29 113 0 Normal
07/21/2026 07 AM PDT 1.29 113 0 Normal
07/21/2026 08 AM PDT 1.29 113 0 Normal
07/21/2026 09 AM PDT 1.29 113 0 Normal
07/21/2026 10 AM PDT 1.29 113 0 Normal
07/21/2026 11 AM PDT 1.29 113 0 Normal
07/21/2026 12 PM PDT 1.29 113 0 Normal
07/21/2026 01 PM PDT 1.29 113 0 Normal
07/21/2026 02 PM PDT 1.29 113 0 Normal
07/21/2026 03 PM PDT 1.29 113 0 Normal
07/21/2026 04 PM PDT 1.29 113 0 Normal
07/21/2026 05 PM PDT 1.29 113 0 Normal
07/21/2026 06 PM PDT 1.29 113 0 Normal
07/21/2026 07 PM PDT 1.29 113 0 Normal
07/21/2026 08 PM PDT 1.29 113 0 Normal
07/21/2026 09 PM PDT 1.29 113 0 Normal
07/21/2026 10 PM PDT 1.29 113 0 Normal
07/21/2026 11 PM PDT 1.29 113 0 Normal
07/22/2026 12 AM PDT 1.29 113 0 Normal
07/22/2026 01 AM PDT 1.29 113 0 Normal
07/22/2026 02 AM PDT 1.29 113 0 Normal
07/22/2026 03 AM PDT 1.29 113 0 Normal
07/22/2026 04 AM PDT 1.29 113 0 Normal
07/22/2026 05 AM PDT 1.29 113 0 Normal
07/22/2026 06 AM PDT 1.29 113 0 Normal
07/22/2026 07 AM PDT 1.29 113 0 Normal
07/22/2026 08 AM PDT 1.28 112 - Normal
07/22/2026 09 AM PDT 1.28 112 0 Normal
07/22/2026 10 AM PDT 1.28 112 0 Normal
07/22/2026 11 AM PDT 1.28 112 0 Normal
07/22/2026 12 PM PDT 1.28 112 0 Normal
07/22/2026 01 PM PDT 1.28 112 0 Normal
07/22/2026 02 PM PDT 1.28 112 0 Normal
07/22/2026 03 PM PDT 1.28 112 0 Normal
07/22/2026 04 PM PDT 1.28 112 0 Normal
07/22/2026 05 PM PDT 1.28 112 0 Normal
07/22/2026 06 PM PDT 1.28 112 0 Normal
07/22/2026 07 PM PDT 1.28 112 0 Normal
07/22/2026 08 PM PDT 1.28 112 0 Normal
07/22/2026 09 PM PDT 1.28 112 0 Normal
07/22/2026 10 PM PDT 1.28 112 0 Normal
07/22/2026 11 PM PDT 1.28 112 0 Normal
07/23/2026 12 AM PDT 1.28 112 0 Normal
07/23/2026 01 AM PDT 1.28 112 0 Normal
07/23/2026 02 AM PDT 1.28 112 0 Normal
07/23/2026 03 AM PDT 1.28 112 0 Normal
07/23/2026 04 AM PDT 1.28 112 0 Normal
07/23/2026 05 AM PDT 1.28 112 0 Normal
07/23/2026 06 AM PDT 1.28 112 0 Normal
07/23/2026 07 AM PDT 1.28 112 0 Normal
07/23/2026 08 AM PDT 1.28 112 0 Normal
07/23/2026 09 AM PDT 1.28 112 0 Normal
07/23/2026 10 AM PDT 1.28 112 0 Normal
07/23/2026 11 AM PDT 1.28 112 0 Normal
07/23/2026 12 PM PDT 1.28 112 0 Normal
07/23/2026 01 PM PDT 1.28 112 0 Normal
07/23/2026 02 PM PDT 1.28 112 0 Normal
07/23/2026 03 PM PDT 1.27 111 - Normal
07/23/2026 04 PM PDT 1.27 111 0 Normal
07/23/2026 05 PM PDT 1.27 111 0 Normal
07/23/2026 06 PM PDT 1.27 111 0 Normal
07/23/2026 07 PM PDT 1.27 111 0 Normal
07/23/2026 08 PM PDT 1.27 111 0 Normal
07/23/2026 09 PM PDT 1.27 111 0 Normal
07/23/2026 10 PM PDT 1.27 111 0 Normal
07/23/2026 11 PM PDT 1.27 111 0 Normal
07/24/2026 12 AM PDT 1.27 111 0 Normal
07/24/2026 01 AM PDT 1.27 111 0 Normal
07/24/2026 02 AM PDT 1.27 111 0 Normal
07/24/2026 03 AM PDT 1.27 111 0 Normal
07/24/2026 04 AM PDT 1.27 111 0 Normal
07/24/2026 05 AM PDT 1.27 111 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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