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RUSSIAN RIVER - HEALDSBURG (HEAC1)
| Latitude: 38.61º N | Longitude: 122.84º W | Elevation: 77 Feet | | Forecast Type: Official Location |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Aug 04 2026 at 7:13 AM PDT | Next Issuance: | Aug 05 2026 at 9:00 AM PDT
| |
| Action/Monitor: 20.0 Feet | Minor Flood: 23.0 Feet | Moderate Flood: 27.0 Feet | Major Flood: 29.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Russian River - Healdsburg (HEAC1)
#
# File Generation Time: 08/04/2026 at 07:14 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/30/2026 at 05:00 PM PDT
# Maximum Observed Stage: 1.25 Feet
# Maximum Observed Flow: 91 cfs
#
# Earliest Date & Time of Maximum Forecast: 08/04/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 1.21 Feet
# Maximum Forecast Flow: 84 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/30/2026 07 AM PDT 1.25 91 Normal
07/30/2026 08 AM PDT 1.25 91 0 Normal
07/30/2026 09 AM PDT 1.25 91 0 Normal
07/30/2026 10 AM PDT 1.25 91 0 Normal
07/30/2026 11 AM PDT 1.25 91 0 Normal
07/30/2026 12 PM PDT 1.25 91 0 Normal
07/30/2026 01 PM PDT 1.25 91 0 Normal
07/30/2026 02 PM PDT 1.25 91 0 Normal
07/30/2026 03 PM PDT 1.25 91 0 Normal
07/30/2026 04 PM PDT 1.24 90 - Normal
07/30/2026 05 PM PDT 1.25 91 + Normal
07/30/2026 06 PM PDT 1.24 90 - Normal
07/30/2026 07 PM PDT 1.24 90 0 Normal
07/30/2026 08 PM PDT 1.24 90 0 Normal
07/30/2026 09 PM PDT 1.24 90 0 Normal
07/30/2026 10 PM PDT 1.24 90 0 Normal
07/30/2026 11 PM PDT 1.24 90 0 Normal
07/31/2026 12 AM PDT 1.23 88 - Normal
07/31/2026 01 AM PDT 1.23 88 0 Normal
07/31/2026 02 AM PDT 1.23 88 0 Normal
07/31/2026 03 AM PDT 1.23 88 0 Normal
07/31/2026 04 AM PDT 1.23 88 0 Normal
07/31/2026 05 AM PDT 1.23 88 0 Normal
07/31/2026 06 AM PDT 1.23 88 0 Normal
07/31/2026 07 AM PDT 1.23 88 0 Normal
07/31/2026 08 AM PDT 1.23 88 0 Normal
07/31/2026 09 AM PDT 1.23 88 0 Normal
07/31/2026 10 AM PDT 1.24 90 + Normal
07/31/2026 11 AM PDT 1.24 90 0 Normal
07/31/2026 12 PM PDT 1.24 90 0 Normal
07/31/2026 01 PM PDT 1.24 90 0 Normal
07/31/2026 02 PM PDT 1.24 90 0 Normal
07/31/2026 03 PM PDT 1.23 88 - Normal
07/31/2026 04 PM PDT 1.23 88 0 Normal
07/31/2026 05 PM PDT 1.23 88 0 Normal
07/31/2026 06 PM PDT 1.23 88 0 Normal
07/31/2026 07 PM PDT 1.23 88 0 Normal
07/31/2026 08 PM PDT 1.23 88 0 Normal
07/31/2026 09 PM PDT 1.23 88 0 Normal
07/31/2026 10 PM PDT 1.23 88 0 Normal
07/31/2026 11 PM PDT 1.23 88 0 Normal
08/01/2026 12 AM PDT 1.22 86 - Normal
08/01/2026 01 AM PDT 1.22 86 0 Normal
08/01/2026 02 AM PDT 1.22 86 0 Normal
08/01/2026 03 AM PDT 1.22 86 0 Normal
08/01/2026 04 AM PDT 1.21 84 - Normal
08/01/2026 05 AM PDT 1.21 84 0 Normal
08/01/2026 06 AM PDT 1.21 84 0 Normal
08/01/2026 07 AM PDT 1.21 84 0 Normal
08/01/2026 08 AM PDT 1.21 84 0 Normal
08/01/2026 09 AM PDT 1.22 86 + Normal
08/01/2026 10 AM PDT 1.22 86 0 Normal
08/01/2026 11 AM PDT 1.22 86 0 Normal
08/01/2026 12 PM PDT 1.22 86 0 Normal
08/01/2026 01 PM PDT 1.22 86 0 Normal
08/01/2026 02 PM PDT 1.22 86 0 Normal
08/01/2026 03 PM PDT 1.23 88 + Normal
08/01/2026 04 PM PDT 1.22 86 - Normal
08/01/2026 05 PM PDT 1.22 86 0 Normal
08/01/2026 06 PM PDT 1.22 86 0 Normal
08/01/2026 07 PM PDT 1.22 86 0 Normal
08/01/2026 08 PM PDT 1.22 86 0 Normal
08/01/2026 09 PM PDT 1.22 86 0 Normal
08/01/2026 10 PM PDT 1.22 86 0 Normal
08/01/2026 11 PM PDT 1.22 86 0 Normal
08/02/2026 12 AM PDT 1.22 86 0 Normal
08/02/2026 01 AM PDT 1.22 86 0 Normal
08/02/2026 02 AM PDT 1.21 84 - Normal
08/02/2026 03 AM PDT 1.21 84 0 Normal
08/02/2026 04 AM PDT 1.21 84 0 Normal
08/02/2026 05 AM PDT 1.21 84 0 Normal
08/02/2026 06 AM PDT 1.21 84 0 Normal
08/02/2026 07 AM PDT 1.22 86 + Normal
08/02/2026 08 AM PDT 1.22 86 0 Normal
08/02/2026 09 AM PDT 1.22 86 0 Normal
08/02/2026 10 AM PDT 1.22 86 0 Normal
08/02/2026 11 AM PDT 1.23 88 + Normal
08/02/2026 12 PM PDT 1.23 88 0 Normal
08/02/2026 01 PM PDT 1.23 88 0 Normal
08/02/2026 02 PM PDT 1.22 86 - Normal
08/02/2026 03 PM PDT 1.23 88 + Normal
08/02/2026 04 PM PDT 1.22 86 - Normal
08/02/2026 05 PM PDT 1.22 86 0 Normal
08/02/2026 06 PM PDT 1.23 88 + Normal
08/02/2026 07 PM PDT 1.23 88 0 Normal
08/02/2026 08 PM PDT 1.23 88 0 Normal
08/02/2026 09 PM PDT 1.23 88 0 Normal
08/02/2026 10 PM PDT 1.23 88 0 Normal
08/02/2026 11 PM PDT 1.23 88 0 Normal
08/03/2026 12 AM PDT 1.23 88 0 Normal
08/03/2026 01 AM PDT 1.23 88 0 Normal
08/03/2026 02 AM PDT 1.23 88 0 Normal
08/03/2026 03 AM PDT 1.23 88 0 Normal
08/03/2026 04 AM PDT 1.23 88 0 Normal
08/03/2026 05 AM PDT 1.23 88 0 Normal
08/03/2026 06 AM PDT 1.23 88 0 Normal
08/03/2026 07 AM PDT 1.23 88 0 Normal
08/03/2026 08 AM PDT 1.23 88 0 Normal
08/03/2026 09 AM PDT 1.23 88 0 Normal
08/03/2026 10 AM PDT 1.24 90 + Normal
08/03/2026 11 AM PDT 1.24 90 0 Normal
08/03/2026 12 PM PDT 1.24 90 0 Normal
08/03/2026 01 PM PDT 1.24 90 0 Normal
08/03/2026 02 PM PDT 1.24 90 0 Normal
08/03/2026 03 PM PDT 1.23 88 - Normal
08/03/2026 04 PM PDT 1.23 88 0 Normal
08/03/2026 05 PM PDT 1.23 88 0 Normal
08/03/2026 06 PM PDT 1.23 88 0 Normal
08/03/2026 07 PM PDT 1.23 88 0 Normal
08/03/2026 08 PM PDT 1.23 88 0 Normal
08/03/2026 09 PM PDT 1.23 88 0 Normal
08/03/2026 10 PM PDT 1.23 88 0 Normal
08/03/2026 11 PM PDT 1.23 88 0 Normal
08/04/2026 12 AM PDT 1.23 88 0 Normal
08/04/2026 01 AM PDT 1.22 86 - Normal
08/04/2026 02 AM PDT 1.22 86 0 Normal
08/04/2026 03 AM PDT 1.22 86 0 Normal
08/04/2026 04 AM PDT 1.22 86 0 Normal
08/04/2026 05 AM PDT 1.22 86 0 Normal
08/04/2026 06 AM PDT 1.22 86 0 Normal
08/04/2026 07 AM PDT 1.22 86 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
08/04/2026 08 AM PDT 1.21 84 Normal
08/04/2026 09 AM PDT 1.21 84 0 Normal
08/04/2026 10 AM PDT 1.21 84 0 Normal
08/04/2026 11 AM PDT 1.20 83 - Normal
08/04/2026 12 PM PDT 1.20 83 0 Normal
08/04/2026 01 PM PDT 1.20 83 0 Normal
08/04/2026 02 PM PDT 1.20 83 0 Normal
08/04/2026 03 PM PDT 1.19 81 - Normal
08/04/2026 04 PM PDT 1.19 81 0 Normal
08/04/2026 05 PM PDT 1.19 81 0 Normal
08/04/2026 06 PM PDT 1.19 81 0 Normal
08/04/2026 07 PM PDT 1.19 81 0 Normal
08/04/2026 08 PM PDT 1.19 81 0 Normal
08/04/2026 09 PM PDT 1.19 81 0 Normal
08/04/2026 10 PM PDT 1.19 81 0 Normal
08/04/2026 11 PM PDT 1.19 81 0 Normal
08/05/2026 12 AM PDT 1.19 81 0 Normal
08/05/2026 01 AM PDT 1.19 81 0 Normal
08/05/2026 02 AM PDT 1.19 81 0 Normal
08/05/2026 03 AM PDT 1.19 81 0 Normal
08/05/2026 04 AM PDT 1.19 81 0 Normal
08/05/2026 05 AM PDT 1.19 81 0 Normal
08/05/2026 06 AM PDT 1.19 81 0 Normal
08/05/2026 07 AM PDT 1.19 81 0 Normal
08/05/2026 08 AM PDT 1.19 81 0 Normal
08/05/2026 09 AM PDT 1.19 81 0 Normal
08/05/2026 10 AM PDT 1.19 81 0 Normal
08/05/2026 11 AM PDT 1.19 81 0 Normal
08/05/2026 12 PM PDT 1.19 81 0 Normal
08/05/2026 01 PM PDT 1.19 81 0 Normal
08/05/2026 02 PM PDT 1.20 83 + Normal
08/05/2026 03 PM PDT 1.20 83 0 Normal
08/05/2026 04 PM PDT 1.20 83 0 Normal
08/05/2026 05 PM PDT 1.20 83 0 Normal
08/05/2026 06 PM PDT 1.20 83 0 Normal
08/05/2026 07 PM PDT 1.20 83 0 Normal
08/05/2026 08 PM PDT 1.20 83 0 Normal
08/05/2026 09 PM PDT 1.20 83 0 Normal
08/05/2026 10 PM PDT 1.20 83 0 Normal
08/05/2026 11 PM PDT 1.20 83 0 Normal
08/06/2026 12 AM PDT 1.20 83 0 Normal
08/06/2026 01 AM PDT 1.20 83 0 Normal
08/06/2026 02 AM PDT 1.20 83 0 Normal
08/06/2026 03 AM PDT 1.20 83 0 Normal
08/06/2026 04 AM PDT 1.20 83 0 Normal
08/06/2026 05 AM PDT 1.20 83 0 Normal
08/06/2026 06 AM PDT 1.20 83 0 Normal
08/06/2026 07 AM PDT 1.20 83 0 Normal
08/06/2026 08 AM PDT 1.20 83 0 Normal
08/06/2026 09 AM PDT 1.20 83 0 Normal
08/06/2026 10 AM PDT 1.20 83 0 Normal
08/06/2026 11 AM PDT 1.20 83 0 Normal
08/06/2026 12 PM PDT 1.20 83 0 Normal
08/06/2026 01 PM PDT 1.20 83 0 Normal
08/06/2026 02 PM PDT 1.20 83 0 Normal
08/06/2026 03 PM PDT 1.20 83 0 Normal
08/06/2026 04 PM PDT 1.20 83 0 Normal
08/06/2026 05 PM PDT 1.20 83 0 Normal
08/06/2026 06 PM PDT 1.20 83 0 Normal
08/06/2026 07 PM PDT 1.20 83 0 Normal
08/06/2026 08 PM PDT 1.20 83 0 Normal
08/06/2026 09 PM PDT 1.20 83 0 Normal
08/06/2026 10 PM PDT 1.20 83 0 Normal
08/06/2026 11 PM PDT 1.20 83 0 Normal
08/07/2026 12 AM PDT 1.20 83 0 Normal
08/07/2026 01 AM PDT 1.20 83 0 Normal
08/07/2026 02 AM PDT 1.20 83 0 Normal
08/07/2026 03 AM PDT 1.20 83 0 Normal
08/07/2026 04 AM PDT 1.20 83 0 Normal
08/07/2026 05 AM PDT 1.20 83 0 Normal
08/07/2026 06 AM PDT 1.20 83 0 Normal
08/07/2026 07 AM PDT 1.20 83 0 Normal
08/07/2026 08 AM PDT 1.20 83 0 Normal
08/07/2026 09 AM PDT 1.20 83 0 Normal
08/07/2026 10 AM PDT 1.20 83 0 Normal
08/07/2026 11 AM PDT 1.20 83 0 Normal
08/07/2026 12 PM PDT 1.20 83 0 Normal
08/07/2026 01 PM PDT 1.20 83 0 Normal
08/07/2026 02 PM PDT 1.20 83 0 Normal
08/07/2026 03 PM PDT 1.20 83 0 Normal
08/07/2026 04 PM PDT 1.20 83 0 Normal
08/07/2026 05 PM PDT 1.20 83 0 Normal
08/07/2026 06 PM PDT 1.20 83 0 Normal
08/07/2026 07 PM PDT 1.20 83 0 Normal
08/07/2026 08 PM PDT 1.20 83 0 Normal
08/07/2026 09 PM PDT 1.20 83 0 Normal
08/07/2026 10 PM PDT 1.20 83 0 Normal
08/07/2026 11 PM PDT 1.20 83 0 Normal
08/08/2026 12 AM PDT 1.20 83 0 Normal
08/08/2026 01 AM PDT 1.20 83 0 Normal
08/08/2026 02 AM PDT 1.20 83 0 Normal
08/08/2026 03 AM PDT 1.20 83 0 Normal
08/08/2026 04 AM PDT 1.20 83 0 Normal
08/08/2026 05 AM PDT 1.20 83 0 Normal
08/08/2026 06 AM PDT 1.20 83 0 Normal
08/08/2026 07 AM PDT 1.20 83 0 Normal
08/08/2026 08 AM PDT 1.20 83 0 Normal
08/08/2026 09 AM PDT 1.20 83 0 Normal
08/08/2026 10 AM PDT 1.20 83 0 Normal
08/08/2026 11 AM PDT 1.20 83 0 Normal
08/08/2026 12 PM PDT 1.20 83 0 Normal
08/08/2026 01 PM PDT 1.20 83 0 Normal
08/08/2026 02 PM PDT 1.20 83 0 Normal
08/08/2026 03 PM PDT 1.20 83 0 Normal
08/08/2026 04 PM PDT 1.20 83 0 Normal
08/08/2026 05 PM PDT 1.20 83 0 Normal
08/08/2026 06 PM PDT 1.20 83 0 Normal
08/08/2026 07 PM PDT 1.20 83 0 Normal
08/08/2026 08 PM PDT 1.20 83 0 Normal
08/08/2026 09 PM PDT 1.20 83 0 Normal
08/08/2026 10 PM PDT 1.20 83 0 Normal
08/08/2026 11 PM PDT 1.20 83 0 Normal
08/09/2026 12 AM PDT 1.20 83 0 Normal
08/09/2026 01 AM PDT 1.20 83 0 Normal
08/09/2026 02 AM PDT 1.20 83 0 Normal
08/09/2026 03 AM PDT 1.20 83 0 Normal
08/09/2026 04 AM PDT 1.20 83 0 Normal
08/09/2026 05 AM PDT 1.20 83 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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