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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 19 2026 at 6:45 AM PDT | Next Issuance: | Aug 20 2026 at 9:00 AM PDT
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| 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: 08/19/2026 at 06:45 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 08/17/2026 at 01:00 PM PDT
# Maximum Observed Stage: 1.33 Feet
# Maximum Observed Flow: 106 cfs
#
# Earliest Date & Time of Maximum Forecast: 08/21/2026 at 12:00 AM PDT
# Maximum Forecast Stage: 1.32 Feet
# Maximum Forecast Flow: 104 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
08/14/2026 06 AM PDT 1.28 97 Normal
08/14/2026 07 AM PDT 1.28 97 0 Normal
08/14/2026 08 AM PDT 1.28 97 0 Normal
08/14/2026 09 AM PDT 1.28 97 0 Normal
08/14/2026 10 AM PDT 1.29 99 + Normal
08/14/2026 11 AM PDT 1.29 99 0 Normal
08/14/2026 12 PM PDT 1.29 99 0 Normal
08/14/2026 01 PM PDT 1.30 100 + Normal
08/14/2026 02 PM PDT 1.30 100 0 Normal
08/14/2026 03 PM PDT 1.30 100 0 Normal
08/14/2026 04 PM PDT 1.30 100 0 Normal
08/14/2026 05 PM PDT 1.30 100 0 Normal
08/14/2026 06 PM PDT 1.30 100 0 Normal
08/14/2026 07 PM PDT 1.30 100 0 Normal
08/14/2026 08 PM PDT 1.30 100 0 Normal
08/14/2026 09 PM PDT 1.30 100 0 Normal
08/14/2026 10 PM PDT 1.30 100 0 Normal
08/14/2026 11 PM PDT 1.29 99 - Normal
08/15/2026 12 AM PDT 1.29 99 0 Normal
08/15/2026 01 AM PDT 1.29 99 0 Normal
08/15/2026 02 AM PDT 1.29 99 0 Normal
08/15/2026 03 AM PDT 1.29 99 0 Normal
08/15/2026 04 AM PDT 1.29 99 0 Normal
08/15/2026 05 AM PDT 1.29 99 0 Normal
08/15/2026 06 AM PDT 1.29 99 0 Normal
08/15/2026 07 AM PDT 1.30 100 + Normal
08/15/2026 08 AM PDT 1.30 100 0 Normal
08/15/2026 09 AM PDT 1.30 100 0 Normal
08/15/2026 10 AM PDT 1.30 100 0 Normal
08/15/2026 11 AM PDT 1.30 100 0 Normal
08/15/2026 12 PM PDT 1.31 102 + Normal
08/15/2026 01 PM PDT 1.30 100 - Normal
08/15/2026 02 PM PDT 1.31 102 + Normal
08/15/2026 03 PM PDT 1.31 102 0 Normal
08/15/2026 04 PM PDT 1.30 100 - Normal
08/15/2026 05 PM PDT 1.31 102 + Normal
08/15/2026 06 PM PDT 1.31 102 0 Normal
08/15/2026 07 PM PDT 1.31 102 0 Normal
08/15/2026 08 PM PDT 1.31 102 0 Normal
08/15/2026 09 PM PDT 1.31 102 0 Normal
08/15/2026 10 PM PDT 1.31 102 0 Normal
08/15/2026 11 PM PDT 1.31 102 0 Normal
08/16/2026 12 AM PDT 1.31 102 0 Normal
08/16/2026 01 AM PDT 1.31 102 0 Normal
08/16/2026 02 AM PDT 1.31 102 0 Normal
08/16/2026 03 AM PDT 1.31 102 0 Normal
08/16/2026 04 AM PDT 1.31 102 0 Normal
08/16/2026 05 AM PDT 1.32 104 + Normal
08/16/2026 06 AM PDT 1.32 104 0 Normal
08/16/2026 07 AM PDT 1.32 104 0 Normal
08/16/2026 08 AM PDT 1.32 104 0 Normal
08/16/2026 09 AM PDT 1.32 104 0 Normal
08/16/2026 10 AM PDT 1.33 106 + Normal
08/16/2026 11 AM PDT 1.33 106 0 Normal
08/16/2026 12 PM PDT 1.33 106 0 Normal
08/16/2026 01 PM PDT 1.33 106 0 Normal
08/16/2026 02 PM PDT 1.33 106 0 Normal
08/16/2026 03 PM PDT 1.33 106 0 Normal
08/16/2026 04 PM PDT 1.33 106 0 Normal
08/16/2026 05 PM PDT 1.33 106 0 Normal
08/16/2026 06 PM PDT 1.33 106 0 Normal
08/16/2026 07 PM PDT 1.33 106 0 Normal
08/16/2026 08 PM PDT 1.33 106 0 Normal
08/16/2026 09 PM PDT 1.33 106 0 Normal
08/16/2026 10 PM PDT 1.33 106 0 Normal
08/16/2026 11 PM PDT 1.33 106 0 Normal
08/17/2026 12 AM PDT 1.33 106 0 Normal
08/17/2026 01 AM PDT 1.33 106 0 Normal
08/17/2026 02 AM PDT 1.33 106 0 Normal
08/17/2026 03 AM PDT 1.32 104 - Normal
08/17/2026 04 AM PDT 1.32 104 0 Normal
08/17/2026 05 AM PDT 1.32 104 0 Normal
08/17/2026 06 AM PDT 1.32 104 0 Normal
08/17/2026 07 AM PDT 1.32 104 0 Normal
08/17/2026 08 AM PDT 1.32 104 0 Normal
08/17/2026 09 AM PDT 1.33 106 + Normal
08/17/2026 10 AM PDT 1.32 104 - Normal
08/17/2026 11 AM PDT 1.33 106 + Normal
08/17/2026 12 PM PDT 1.32 104 - Normal
08/17/2026 01 PM PDT 1.33 106 + Normal
08/17/2026 02 PM PDT 1.32 104 - Normal
08/17/2026 03 PM PDT 1.32 104 0 Normal
08/17/2026 04 PM PDT 1.32 104 0 Normal
08/17/2026 05 PM PDT 1.32 104 0 Normal
08/17/2026 06 PM PDT 1.32 104 0 Normal
08/17/2026 07 PM PDT 1.32 104 0 Normal
08/17/2026 08 PM PDT 1.32 104 0 Normal
08/17/2026 09 PM PDT 1.31 102 - Normal
08/17/2026 10 PM PDT 1.31 102 0 Normal
08/17/2026 11 PM PDT 1.31 102 0 Normal
08/18/2026 12 AM PDT 1.31 102 0 Normal
08/18/2026 01 AM PDT 1.31 102 0 Normal
08/18/2026 02 AM PDT 1.31 102 0 Normal
08/18/2026 03 AM PDT 1.31 102 0 Normal
08/18/2026 04 AM PDT 1.30 100 - Normal
08/18/2026 05 AM PDT 1.30 100 0 Normal
08/18/2026 06 AM PDT 1.30 100 0 Normal
08/18/2026 07 AM PDT 1.30 100 0 Normal
08/18/2026 08 AM PDT 1.30 100 0 Normal
08/18/2026 09 AM PDT 1.30 100 0 Normal
08/18/2026 10 AM PDT 1.30 100 0 Normal
08/18/2026 11 AM PDT 1.31 102 + Normal
08/18/2026 12 PM PDT 1.31 102 0 Normal
08/18/2026 01 PM PDT 1.31 102 0 Normal
08/18/2026 02 PM PDT 1.31 102 0 Normal
08/18/2026 03 PM PDT 1.31 102 0 Normal
08/18/2026 04 PM PDT 1.31 102 0 Normal
08/18/2026 05 PM PDT 1.32 104 + Normal
08/18/2026 06 PM PDT 1.31 102 - Normal
08/18/2026 07 PM PDT 1.31 102 0 Normal
08/18/2026 08 PM PDT 1.31 102 0 Normal
08/18/2026 09 PM PDT 1.32 104 + Normal
08/18/2026 10 PM PDT 1.31 102 - Normal
08/18/2026 11 PM PDT 1.32 104 + Normal
08/19/2026 12 AM PDT 1.31 102 - Normal
08/19/2026 01 AM PDT 1.31 102 0 Normal
08/19/2026 02 AM PDT 1.31 102 0 Normal
08/19/2026 03 AM PDT 1.31 102 0 Normal
08/19/2026 04 AM PDT 1.31 102 0 Normal
08/19/2026 05 AM PDT 1.31 102 0 Normal
08/19/2026 06 AM PDT 1.31 102 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
08/19/2026 07 AM PDT 1.30 100 Normal
08/19/2026 08 AM PDT 1.30 100 0 Normal
08/19/2026 09 AM PDT 1.30 100 0 Normal
08/19/2026 10 AM PDT 1.30 100 0 Normal
08/19/2026 11 AM PDT 1.29 99 - Normal
08/19/2026 12 PM PDT 1.29 99 0 Normal
08/19/2026 01 PM PDT 1.29 99 0 Normal
08/19/2026 02 PM PDT 1.29 99 0 Normal
08/19/2026 03 PM PDT 1.29 99 0 Normal
08/19/2026 04 PM PDT 1.29 99 0 Normal
08/19/2026 05 PM PDT 1.29 99 0 Normal
08/19/2026 06 PM PDT 1.29 99 0 Normal
08/19/2026 07 PM PDT 1.29 99 0 Normal
08/19/2026 08 PM PDT 1.29 99 0 Normal
08/19/2026 09 PM PDT 1.29 99 0 Normal
08/19/2026 10 PM PDT 1.29 99 0 Normal
08/19/2026 11 PM PDT 1.29 99 0 Normal
08/20/2026 12 AM PDT 1.29 99 0 Normal
08/20/2026 01 AM PDT 1.29 99 0 Normal
08/20/2026 02 AM PDT 1.29 99 0 Normal
08/20/2026 03 AM PDT 1.29 99 0 Normal
08/20/2026 04 AM PDT 1.29 99 0 Normal
08/20/2026 05 AM PDT 1.29 99 0 Normal
08/20/2026 06 AM PDT 1.30 100 + Normal
08/20/2026 07 AM PDT 1.30 100 0 Normal
08/20/2026 08 AM PDT 1.30 100 0 Normal
08/20/2026 09 AM PDT 1.30 100 0 Normal
08/20/2026 10 AM PDT 1.30 100 0 Normal
08/20/2026 11 AM PDT 1.30 100 0 Normal
08/20/2026 12 PM PDT 1.30 100 0 Normal
08/20/2026 01 PM PDT 1.31 102 + Normal
08/20/2026 02 PM PDT 1.31 102 0 Normal
08/20/2026 03 PM PDT 1.31 102 0 Normal
08/20/2026 04 PM PDT 1.31 102 0 Normal
08/20/2026 05 PM PDT 1.31 102 0 Normal
08/20/2026 06 PM PDT 1.31 102 0 Normal
08/20/2026 07 PM PDT 1.31 102 0 Normal
08/20/2026 08 PM PDT 1.31 102 0 Normal
08/20/2026 09 PM PDT 1.31 102 0 Normal
08/20/2026 10 PM PDT 1.31 102 0 Normal
08/20/2026 11 PM PDT 1.31 102 0 Normal
08/21/2026 12 AM PDT 1.32 104 + Normal
08/21/2026 01 AM PDT 1.32 104 0 Normal
08/21/2026 02 AM PDT 1.32 104 0 Normal
08/21/2026 03 AM PDT 1.32 104 0 Normal
08/21/2026 04 AM PDT 1.32 104 0 Normal
08/21/2026 05 AM PDT 1.32 104 0 Normal
08/21/2026 06 AM PDT 1.32 104 0 Normal
08/21/2026 07 AM PDT 1.32 104 0 Normal
08/21/2026 08 AM PDT 1.32 104 0 Normal
08/21/2026 09 AM PDT 1.32 104 0 Normal
08/21/2026 10 AM PDT 1.32 104 0 Normal
08/21/2026 11 AM PDT 1.32 104 0 Normal
08/21/2026 12 PM PDT 1.32 104 0 Normal
08/21/2026 01 PM PDT 1.32 104 0 Normal
08/21/2026 02 PM PDT 1.32 104 0 Normal
08/21/2026 03 PM PDT 1.32 104 0 Normal
08/21/2026 04 PM PDT 1.32 104 0 Normal
08/21/2026 05 PM PDT 1.32 104 0 Normal
08/21/2026 06 PM PDT 1.32 104 0 Normal
08/21/2026 07 PM PDT 1.32 104 0 Normal
08/21/2026 08 PM PDT 1.32 104 0 Normal
08/21/2026 09 PM PDT 1.32 104 0 Normal
08/21/2026 10 PM PDT 1.32 104 0 Normal
08/21/2026 11 PM PDT 1.32 104 0 Normal
08/22/2026 12 AM PDT 1.32 104 0 Normal
08/22/2026 01 AM PDT 1.32 104 0 Normal
08/22/2026 02 AM PDT 1.32 104 0 Normal
08/22/2026 03 AM PDT 1.32 104 0 Normal
08/22/2026 04 AM PDT 1.32 104 0 Normal
08/22/2026 05 AM PDT 1.32 104 0 Normal
08/22/2026 06 AM PDT 1.32 104 0 Normal
08/22/2026 07 AM PDT 1.32 104 0 Normal
08/22/2026 08 AM PDT 1.32 104 0 Normal
08/22/2026 09 AM PDT 1.32 104 0 Normal
08/22/2026 10 AM PDT 1.32 104 0 Normal
08/22/2026 11 AM PDT 1.32 104 0 Normal
08/22/2026 12 PM PDT 1.32 104 0 Normal
08/22/2026 01 PM PDT 1.32 104 0 Normal
08/22/2026 02 PM PDT 1.32 104 0 Normal
08/22/2026 03 PM PDT 1.32 104 0 Normal
08/22/2026 04 PM PDT 1.32 104 0 Normal
08/22/2026 05 PM PDT 1.32 104 0 Normal
08/22/2026 06 PM PDT 1.32 104 0 Normal
08/22/2026 07 PM PDT 1.32 104 0 Normal
08/22/2026 08 PM PDT 1.32 104 0 Normal
08/22/2026 09 PM PDT 1.32 104 0 Normal
08/22/2026 10 PM PDT 1.32 104 0 Normal
08/22/2026 11 PM PDT 1.32 104 0 Normal
08/23/2026 12 AM PDT 1.32 104 0 Normal
08/23/2026 01 AM PDT 1.32 104 0 Normal
08/23/2026 02 AM PDT 1.32 104 0 Normal
08/23/2026 03 AM PDT 1.32 104 0 Normal
08/23/2026 04 AM PDT 1.32 104 0 Normal
08/23/2026 05 AM PDT 1.32 104 0 Normal
08/23/2026 06 AM PDT 1.32 104 0 Normal
08/23/2026 07 AM PDT 1.32 104 0 Normal
08/23/2026 08 AM PDT 1.32 104 0 Normal
08/23/2026 09 AM PDT 1.32 104 0 Normal
08/23/2026 10 AM PDT 1.32 104 0 Normal
08/23/2026 11 AM PDT 1.32 104 0 Normal
08/23/2026 12 PM PDT 1.32 104 0 Normal
08/23/2026 01 PM PDT 1.32 104 0 Normal
08/23/2026 02 PM PDT 1.32 104 0 Normal
08/23/2026 03 PM PDT 1.32 104 0 Normal
08/23/2026 04 PM PDT 1.32 104 0 Normal
08/23/2026 05 PM PDT 1.32 104 0 Normal
08/23/2026 06 PM PDT 1.32 104 0 Normal
08/23/2026 07 PM PDT 1.32 104 0 Normal
08/23/2026 08 PM PDT 1.32 104 0 Normal
08/23/2026 09 PM PDT 1.32 104 0 Normal
08/23/2026 10 PM PDT 1.32 104 0 Normal
08/23/2026 11 PM PDT 1.32 104 0 Normal
08/24/2026 12 AM PDT 1.32 104 0 Normal
08/24/2026 01 AM PDT 1.32 104 0 Normal
08/24/2026 02 AM PDT 1.32 104 0 Normal
08/24/2026 03 AM PDT 1.32 104 0 Normal
08/24/2026 04 AM PDT 1.32 104 0 Normal
08/24/2026 05 AM PDT 1.32 104 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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