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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 30 2026 at 7:11 AM PDT | Next Issuance: | Jul 01 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: 06/30/2026 at 07:12 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 06/25/2026 at 12:00 PM PDT
# Maximum Observed Stage: 1.26 Feet
# Maximum Observed Flow: 128 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/02/2026 at 01:00 PM PDT
# Maximum Forecast Stage: 0.85 Feet
# Maximum Forecast Flow: 88 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
06/25/2026 07 AM PDT 1.26 128 Normal
06/25/2026 08 AM PDT 1.26 128 0 Normal
06/25/2026 09 AM PDT 1.26 128 0 Normal
06/25/2026 10 AM PDT 1.26 128 0 Normal
06/25/2026 11 AM PDT 1.26 128 0 Normal
06/25/2026 12 PM PDT 1.26 128 0 Normal
06/25/2026 01 PM PDT 1.24 126 - Normal
06/25/2026 02 PM PDT 1.21 123 - Normal
06/25/2026 03 PM PDT 1.19 121 - Normal
06/25/2026 04 PM PDT 1.18 119 - Normal
06/25/2026 05 PM PDT 1.16 117 - Normal
06/25/2026 06 PM PDT 1.15 116 - Normal
06/25/2026 07 PM PDT 1.14 115 - Normal
06/25/2026 08 PM PDT 1.14 115 0 Normal
06/25/2026 09 PM PDT 1.14 115 0 Normal
06/25/2026 10 PM PDT 1.14 115 0 Normal
06/25/2026 11 PM PDT 1.14 115 0 Normal
06/26/2026 12 AM PDT 1.14 115 0 Normal
06/26/2026 01 AM PDT 1.13 114 - Normal
06/26/2026 02 AM PDT 1.14 115 + Normal
06/26/2026 03 AM PDT 1.13 114 - Normal
06/26/2026 04 AM PDT 1.13 114 0 Normal
06/26/2026 05 AM PDT 1.13 114 0 Normal
06/26/2026 06 AM PDT 1.13 114 0 Normal
06/26/2026 07 AM PDT 1.13 114 0 Normal
06/26/2026 08 AM PDT 1.13 114 0 Normal
06/26/2026 09 AM PDT 1.13 114 0 Normal
06/26/2026 10 AM PDT 1.13 114 0 Normal
06/26/2026 11 AM PDT 1.14 115 + Normal
06/26/2026 12 PM PDT 1.13 114 - Normal
06/26/2026 01 PM PDT 1.13 114 0 Normal
06/26/2026 02 PM PDT 1.12 113 - Normal
06/26/2026 03 PM PDT 1.11 112 - Normal
06/26/2026 04 PM PDT 1.09 110 - Normal
06/26/2026 05 PM PDT 1.06 107 - Normal
06/26/2026 06 PM PDT 1.04 105 - Normal
06/26/2026 07 PM PDT 1.02 103 - Normal
06/26/2026 08 PM PDT 1.00 101 - Normal
06/26/2026 09 PM PDT 0.98 99 - Normal
06/26/2026 10 PM PDT 0.96 97 - Normal
06/26/2026 11 PM PDT 0.95 97 - Normal
06/27/2026 12 AM PDT 0.95 97 0 Normal
06/27/2026 01 AM PDT 0.95 97 0 Normal
06/27/2026 02 AM PDT 0.96 97 + Normal
06/27/2026 03 AM PDT 0.97 98 + Normal
06/27/2026 04 AM PDT 0.97 98 0 Normal
06/27/2026 05 AM PDT 0.98 99 + Normal
06/27/2026 06 AM PDT 0.99 100 + Normal
06/27/2026 07 AM PDT 1.00 101 + Normal
06/27/2026 08 AM PDT 1.01 102 + Normal
06/27/2026 09 AM PDT 1.02 103 + Normal
06/27/2026 10 AM PDT 1.03 104 + Normal
06/27/2026 11 AM PDT 1.04 105 + Normal
06/27/2026 12 PM PDT 1.04 105 0 Normal
06/27/2026 01 PM PDT 1.05 106 + Normal
06/27/2026 02 PM PDT 1.06 107 + Normal
06/27/2026 03 PM PDT 1.06 107 0 Normal
06/27/2026 04 PM PDT 1.06 107 0 Normal
06/27/2026 05 PM PDT 1.06 107 0 Normal
06/27/2026 06 PM PDT 1.05 106 - Normal
06/27/2026 07 PM PDT 1.05 106 0 Normal
06/27/2026 08 PM PDT 1.05 106 0 Normal
06/27/2026 09 PM PDT 1.05 106 0 Normal
06/27/2026 10 PM PDT 1.05 106 0 Normal
06/27/2026 11 PM PDT 1.05 106 0 Normal
06/28/2026 12 AM PDT 1.05 106 0 Normal
06/28/2026 01 AM PDT 1.05 106 0 Normal
06/28/2026 02 AM PDT 1.06 107 + Normal
06/28/2026 03 AM PDT 1.08 109 + Normal
06/28/2026 04 AM PDT 1.10 111 + Normal
06/28/2026 05 AM PDT 1.11 112 + Normal
06/28/2026 06 AM PDT 1.13 114 + Normal
06/28/2026 07 AM PDT 1.14 115 + Normal
06/28/2026 08 AM PDT 1.15 116 + Normal
06/28/2026 09 AM PDT 1.16 117 + Normal
06/28/2026 10 AM PDT 1.17 118 + Normal
06/28/2026 11 AM PDT 1.17 118 0 Normal
06/28/2026 12 PM PDT 1.16 117 - Normal
06/28/2026 01 PM PDT 1.14 115 - Normal
06/28/2026 02 PM PDT 1.12 113 - Normal
06/28/2026 03 PM PDT 1.11 112 - Normal
06/28/2026 04 PM PDT 1.09 110 - Normal
06/28/2026 05 PM PDT 1.07 108 - Normal
06/28/2026 06 PM PDT 1.06 107 - Normal
06/28/2026 07 PM PDT 1.05 106 - Normal
06/28/2026 08 PM PDT 1.05 106 0 Normal
06/28/2026 09 PM PDT 1.05 106 0 Normal
06/28/2026 10 PM PDT 1.04 105 - Normal
06/28/2026 11 PM PDT 1.04 105 0 Normal
06/29/2026 12 AM PDT 1.04 105 0 Normal
06/29/2026 01 AM PDT 1.03 104 - Normal
06/29/2026 02 AM PDT 1.03 104 0 Normal
06/29/2026 03 AM PDT 1.03 104 0 Normal
06/29/2026 04 AM PDT 1.03 104 0 Normal
06/29/2026 05 AM PDT 1.03 104 0 Normal
06/29/2026 06 AM PDT 1.03 104 0 Normal
06/29/2026 07 AM PDT 1.03 104 0 Normal
06/29/2026 08 AM PDT 1.03 104 0 Normal
06/29/2026 09 AM PDT 1.03 104 0 Normal
06/29/2026 10 AM PDT 1.03 104 0 Normal
06/29/2026 11 AM PDT 1.03 104 0 Normal
06/29/2026 12 PM PDT 1.02 103 - Normal
06/29/2026 01 PM PDT 1.02 103 0 Normal
06/29/2026 02 PM PDT 1.01 102 - Normal
06/29/2026 03 PM PDT 0.99 100 - Normal
06/29/2026 04 PM PDT 0.97 98 - Normal
06/29/2026 05 PM PDT 0.94 96 - Normal
06/29/2026 06 PM PDT 0.92 94 - Normal
06/29/2026 07 PM PDT 0.90 92 - Normal
06/29/2026 08 PM PDT 0.88 90 - Normal
06/29/2026 09 PM PDT 0.86 88 - Normal
06/29/2026 10 PM PDT 0.86 88 0 Normal
06/29/2026 11 PM PDT 0.85 88 - Normal
06/30/2026 12 AM PDT 0.85 88 0 Normal
06/30/2026 01 AM PDT 0.84 87 - Normal
06/30/2026 02 AM PDT 0.84 87 0 Normal
06/30/2026 03 AM PDT 0.84 87 0 Normal
06/30/2026 04 AM PDT 0.84 87 0 Normal
06/30/2026 05 AM PDT 0.84 87 0 Normal
06/30/2026 06 AM PDT 0.83 86 - Normal
06/30/2026 07 AM PDT 0.83 86 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
06/30/2026 08 AM PDT 0.83 86 Normal
06/30/2026 09 AM PDT 0.82 85 - Normal
06/30/2026 10 AM PDT 0.81 84 - Normal
06/30/2026 11 AM PDT 0.81 84 0 Normal
06/30/2026 12 PM PDT 0.80 83 - Normal
06/30/2026 01 PM PDT 0.80 83 0 Normal
06/30/2026 02 PM PDT 0.80 83 0 Normal
06/30/2026 03 PM PDT 0.79 82 - Normal
06/30/2026 04 PM PDT 0.79 82 0 Normal
06/30/2026 05 PM PDT 0.79 82 0 Normal
06/30/2026 06 PM PDT 0.78 81 - Normal
06/30/2026 07 PM PDT 0.78 81 0 Normal
06/30/2026 08 PM PDT 0.78 81 0 Normal
06/30/2026 09 PM PDT 0.78 81 0 Normal
06/30/2026 10 PM PDT 0.78 81 0 Normal
06/30/2026 11 PM PDT 0.78 81 0 Normal
07/01/2026 12 AM PDT 0.78 81 0 Normal
07/01/2026 01 AM PDT 0.78 81 0 Normal
07/01/2026 02 AM PDT 0.78 81 0 Normal
07/01/2026 03 AM PDT 0.78 81 0 Normal
07/01/2026 04 AM PDT 0.78 81 0 Normal
07/01/2026 05 AM PDT 0.79 82 + Normal
07/01/2026 06 AM PDT 0.79 82 0 Normal
07/01/2026 07 AM PDT 0.79 82 0 Normal
07/01/2026 08 AM PDT 0.80 83 + Normal
07/01/2026 09 AM PDT 0.80 83 0 Normal
07/01/2026 10 AM PDT 0.81 84 + Normal
07/01/2026 11 AM PDT 0.81 84 0 Normal
07/01/2026 12 PM PDT 0.81 84 0 Normal
07/01/2026 01 PM PDT 0.82 85 + Normal
07/01/2026 02 PM PDT 0.82 85 0 Normal
07/01/2026 03 PM PDT 0.82 85 0 Normal
07/01/2026 04 PM PDT 0.83 86 + Normal
07/01/2026 05 PM PDT 0.83 86 0 Normal
07/01/2026 06 PM PDT 0.82 85 - Normal
07/01/2026 07 PM PDT 0.82 85 0 Normal
07/01/2026 08 PM PDT 0.82 85 0 Normal
07/01/2026 09 PM PDT 0.82 85 0 Normal
07/01/2026 10 PM PDT 0.83 86 + Normal
07/01/2026 11 PM PDT 0.83 86 0 Normal
07/02/2026 12 AM PDT 0.83 86 0 Normal
07/02/2026 01 AM PDT 0.83 86 0 Normal
07/02/2026 02 AM PDT 0.83 86 0 Normal
07/02/2026 03 AM PDT 0.84 87 + Normal
07/02/2026 04 AM PDT 0.84 87 0 Normal
07/02/2026 05 AM PDT 0.84 87 0 Normal
07/02/2026 06 AM PDT 0.84 87 0 Normal
07/02/2026 07 AM PDT 0.84 87 0 Normal
07/02/2026 08 AM PDT 0.84 87 0 Normal
07/02/2026 09 AM PDT 0.84 87 0 Normal
07/02/2026 10 AM PDT 0.84 87 0 Normal
07/02/2026 11 AM PDT 0.84 87 0 Normal
07/02/2026 12 PM PDT 0.84 87 0 Normal
07/02/2026 01 PM PDT 0.85 88 + Normal
07/02/2026 02 PM PDT 0.85 88 0 Normal
07/02/2026 03 PM PDT 0.85 88 0 Normal
07/02/2026 04 PM PDT 0.85 88 0 Normal
07/02/2026 05 PM PDT 0.85 88 0 Normal
07/02/2026 06 PM PDT 0.83 86 - Normal
07/02/2026 07 PM PDT 0.83 86 0 Normal
07/02/2026 08 PM PDT 0.83 86 0 Normal
07/02/2026 09 PM PDT 0.83 86 0 Normal
07/02/2026 10 PM PDT 0.83 86 0 Normal
07/02/2026 11 PM PDT 0.83 86 0 Normal
07/03/2026 12 AM PDT 0.83 86 0 Normal
07/03/2026 01 AM PDT 0.83 86 0 Normal
07/03/2026 02 AM PDT 0.82 85 - Normal
07/03/2026 03 AM PDT 0.82 85 0 Normal
07/03/2026 04 AM PDT 0.82 85 0 Normal
07/03/2026 05 AM PDT 0.82 85 0 Normal
07/03/2026 06 AM PDT 0.82 85 0 Normal
07/03/2026 07 AM PDT 0.82 85 0 Normal
07/03/2026 08 AM PDT 0.81 84 - Normal
07/03/2026 09 AM PDT 0.81 84 0 Normal
07/03/2026 10 AM PDT 0.81 84 0 Normal
07/03/2026 11 AM PDT 0.81 84 0 Normal
07/03/2026 12 PM PDT 0.81 84 0 Normal
07/03/2026 01 PM PDT 0.80 83 - Normal
07/03/2026 02 PM PDT 0.80 83 0 Normal
07/03/2026 03 PM PDT 0.80 83 0 Normal
07/03/2026 04 PM PDT 0.80 83 0 Normal
07/03/2026 05 PM PDT 0.80 83 0 Normal
07/03/2026 06 PM PDT 0.78 81 - Normal
07/03/2026 07 PM PDT 0.78 81 0 Normal
07/03/2026 08 PM PDT 0.78 81 0 Normal
07/03/2026 09 PM PDT 0.77 81 - Normal
07/03/2026 10 PM PDT 0.77 81 0 Normal
07/03/2026 11 PM PDT 0.77 81 0 Normal
07/04/2026 12 AM PDT 0.77 81 0 Normal
07/04/2026 01 AM PDT 0.77 81 0 Normal
07/04/2026 02 AM PDT 0.77 81 0 Normal
07/04/2026 03 AM PDT 0.76 80 - Normal
07/04/2026 04 AM PDT 0.76 80 0 Normal
07/04/2026 05 AM PDT 0.76 80 0 Normal
07/04/2026 06 AM PDT 0.76 80 0 Normal
07/04/2026 07 AM PDT 0.75 79 - Normal
07/04/2026 08 AM PDT 0.75 79 0 Normal
07/04/2026 09 AM PDT 0.75 79 0 Normal
07/04/2026 10 AM PDT 0.75 79 0 Normal
07/04/2026 11 AM PDT 0.75 79 0 Normal
07/04/2026 12 PM PDT 0.74 78 - Normal
07/04/2026 01 PM PDT 0.74 78 0 Normal
07/04/2026 02 PM PDT 0.74 78 0 Normal
07/04/2026 03 PM PDT 0.74 78 0 Normal
07/04/2026 04 PM PDT 0.74 78 0 Normal
07/04/2026 05 PM PDT 0.73 77 - Normal
07/04/2026 06 PM PDT 0.72 77 - Normal
07/04/2026 07 PM PDT 0.71 76 - Normal
07/04/2026 08 PM PDT 0.71 76 0 Normal
07/04/2026 09 PM PDT 0.71 76 0 Normal
07/04/2026 10 PM PDT 0.71 76 0 Normal
07/04/2026 11 PM PDT 0.71 76 0 Normal
07/05/2026 12 AM PDT 0.70 75 - Normal
07/05/2026 01 AM PDT 0.70 75 0 Normal
07/05/2026 02 AM PDT 0.70 75 0 Normal
07/05/2026 03 AM PDT 0.70 75 0 Normal
07/05/2026 04 AM PDT 0.70 75 0 Normal
07/05/2026 05 AM PDT 0.69 74 - 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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