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NAPA RIVER - NAPA (APCC1)
| Latitude: 38.37º N | Longitude: 122.30º W | Elevation: 25 Feet | | Forecast Type: Official Location |
| Location: Napa County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Aug 20 2026 at 6:36 AM PDT | Next Issuance: | Aug 21 2026 at 9:00 AM PDT
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| Action/Monitor: 22.0 Feet | Minor Flood: 25.0 Feet | Moderate Flood: 26.0 Feet | Major Flood: 28.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Napa River - Napa (APCC1)
#
# File Generation Time: 08/20/2026 at 06:36 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 08/17/2026 at 11:00 AM PDT
# Maximum Observed Stage: 2.39 Feet
# Maximum Observed Flow: 8 cfs
#
# Earliest Date & Time of Maximum Forecast: 08/20/2026 at 07:00 AM PDT
# Maximum Forecast Stage: 2.16 Feet
# Maximum Forecast Flow: 1 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
08/15/2026 06 AM PDT 2.18 1 Normal
08/15/2026 07 AM PDT 2.18 1 0 Normal
08/15/2026 08 AM PDT 2.18 1 0 Normal
08/15/2026 09 AM PDT 2.17 1 - Normal
08/15/2026 10 AM PDT 2.17 1 0 Normal
08/15/2026 11 AM PDT 2.18 1 + Normal
08/15/2026 12 PM PDT 2.18 1 0 Normal
08/15/2026 01 PM PDT 2.18 1 0 Normal
08/15/2026 02 PM PDT 2.18 1 0 Normal
08/15/2026 03 PM PDT 2.18 1 0 Normal
08/15/2026 04 PM PDT 2.18 1 0 Normal
08/15/2026 05 PM PDT 2.18 1 0 Normal
08/15/2026 06 PM PDT 2.19 2 + Normal
08/15/2026 07 PM PDT 2.19 2 0 Normal
08/15/2026 08 PM PDT 2.20 2 + Normal
08/15/2026 09 PM PDT 2.20 2 0 Normal
08/15/2026 10 PM PDT 2.20 2 0 Normal
08/15/2026 11 PM PDT 2.20 2 0 Normal
08/16/2026 12 AM PDT 2.20 2 0 Normal
08/16/2026 01 AM PDT 2.19 2 - Normal
08/16/2026 02 AM PDT 2.19 2 0 Normal
08/16/2026 03 AM PDT 2.19 2 0 Normal
08/16/2026 04 AM PDT 2.20 2 + Normal
08/16/2026 05 AM PDT 2.21 2 + Normal
08/16/2026 06 AM PDT 2.21 2 0 Normal
08/16/2026 07 AM PDT 2.20 2 - Normal
08/16/2026 08 AM PDT 2.20 2 0 Normal
08/16/2026 09 AM PDT 2.20 2 0 Normal
08/16/2026 10 AM PDT 2.19 2 - Normal
08/16/2026 11 AM PDT 2.19 2 0 Normal
08/16/2026 12 PM PDT 2.19 2 0 Normal
08/16/2026 01 PM PDT 2.19 2 0 Normal
08/16/2026 02 PM PDT 2.19 2 0 Normal
08/16/2026 03 PM PDT 2.20 2 + Normal
08/16/2026 04 PM PDT 2.20 2 0 Normal
08/16/2026 05 PM PDT 2.20 2 0 Normal
08/16/2026 06 PM PDT 2.20 2 0 Normal
08/16/2026 07 PM PDT 2.20 2 0 Normal
08/16/2026 08 PM PDT 2.20 2 0 Normal
08/16/2026 09 PM PDT 2.21 2 + Normal
08/16/2026 10 PM PDT 2.20 2 - Normal
08/16/2026 11 PM PDT 2.20 2 0 Normal
08/17/2026 12 AM PDT 2.20 2 0 Normal
08/17/2026 01 AM PDT 2.20 2 0 Normal
08/17/2026 02 AM PDT 2.20 2 0 Normal
08/17/2026 03 AM PDT 2.20 2 0 Normal
08/17/2026 04 AM PDT 2.21 2 + Normal
08/17/2026 05 AM PDT 2.20 2 - Normal
08/17/2026 06 AM PDT 2.20 2 0 Normal
08/17/2026 07 AM PDT 2.19 2 - Normal
08/17/2026 08 AM PDT 2.19 2 0 Normal
08/17/2026 09 AM PDT 2.18 1 - Normal
08/17/2026 10 AM PDT 2.18 1 0 Normal
08/17/2026 11 AM PDT 2.39 8 + Normal
08/17/2026 12 PM PDT 2.33 5 - Normal
08/17/2026 01 PM PDT 2.27 4 - Normal
08/17/2026 02 PM PDT 2.23 2 - Normal
08/17/2026 03 PM PDT 2.20 2 - Normal
08/17/2026 04 PM PDT 2.19 2 - Normal
08/17/2026 05 PM PDT 2.18 1 - Normal
08/17/2026 06 PM PDT 2.17 1 - Normal
08/17/2026 07 PM PDT 2.17 1 0 Normal
08/17/2026 08 PM PDT 2.16 1 - Normal
08/17/2026 09 PM PDT 2.16 1 0 Normal
08/17/2026 10 PM PDT 2.15 1 - Normal
08/17/2026 11 PM PDT 2.15 1 0 Normal
08/18/2026 12 AM PDT 2.15 1 0 Normal
08/18/2026 01 AM PDT 2.14 1 - Normal
08/18/2026 02 AM PDT 2.14 1 0 Normal
08/18/2026 03 AM PDT 2.13 1 - Normal
08/18/2026 04 AM PDT 2.12 0 - Normal
08/18/2026 05 AM PDT 2.12 0 0 Normal
08/18/2026 06 AM PDT 2.12 0 0 Normal
08/18/2026 07 AM PDT 2.12 0 0 Normal
08/18/2026 08 AM PDT 2.12 0 0 Normal
08/18/2026 09 AM PDT 2.13 1 + Normal
08/18/2026 10 AM PDT 2.13 1 0 Normal
08/18/2026 11 AM PDT 2.15 1 + Normal
08/18/2026 12 PM PDT 2.16 1 + Normal
08/18/2026 01 PM PDT 2.17 1 + Normal
08/18/2026 02 PM PDT 2.17 1 0 Normal
08/18/2026 03 PM PDT 2.17 1 0 Normal
08/18/2026 04 PM PDT 2.17 1 0 Normal
08/18/2026 05 PM PDT 2.17 1 0 Normal
08/18/2026 06 PM PDT 2.17 1 0 Normal
08/18/2026 07 PM PDT 2.17 1 0 Normal
08/18/2026 08 PM PDT 2.16 1 - Normal
08/18/2026 09 PM PDT 2.16 1 0 Normal
08/18/2026 10 PM PDT 2.16 1 0 Normal
08/18/2026 11 PM PDT 2.16 1 0 Normal
08/19/2026 12 AM PDT 2.16 1 0 Normal
08/19/2026 01 AM PDT 2.15 1 - Normal
08/19/2026 02 AM PDT 2.15 1 0 Normal
08/19/2026 03 AM PDT 2.15 1 0 Normal
08/19/2026 04 AM PDT 2.15 1 0 Normal
08/19/2026 05 AM PDT 2.15 1 0 Normal
08/19/2026 06 AM PDT 2.15 1 0 Normal
08/19/2026 07 AM PDT 2.15 1 0 Normal
08/19/2026 08 AM PDT 2.15 1 0 Normal
08/19/2026 09 AM PDT 2.14 1 - Normal
08/19/2026 10 AM PDT 2.15 1 + Normal
08/19/2026 11 AM PDT 2.16 1 + Normal
08/19/2026 12 PM PDT 2.16 1 0 Normal
08/19/2026 01 PM PDT 2.22 2 + Normal
08/19/2026 02 PM PDT 2.25 3 + Normal
08/19/2026 03 PM PDT 2.23 2 - Normal
08/19/2026 04 PM PDT 2.21 2 - Normal
08/19/2026 05 PM PDT 2.19 2 - Normal
08/19/2026 06 PM PDT 2.18 1 - Normal
08/19/2026 07 PM PDT 2.18 1 0 Normal
08/19/2026 08 PM PDT 2.18 1 0 Normal
08/19/2026 09 PM PDT 2.17 1 - Normal
08/19/2026 10 PM PDT 2.17 1 0 Normal
08/19/2026 11 PM PDT 2.17 1 0 Normal
08/20/2026 12 AM PDT 2.16 1 - Normal
08/20/2026 01 AM PDT 2.16 1 0 Normal
08/20/2026 02 AM PDT 2.16 1 0 Normal
08/20/2026 03 AM PDT 2.16 1 0 Normal
08/20/2026 04 AM PDT 2.16 1 0 Normal
08/20/2026 05 AM PDT 2.16 1 0 Normal
08/20/2026 06 AM PDT 2.16 1 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
08/20/2026 07 AM PDT 2.16 1 Normal
08/20/2026 08 AM PDT 2.16 1 0 Normal
08/20/2026 09 AM PDT 2.16 1 0 Normal
08/20/2026 10 AM PDT 2.16 1 0 Normal
08/20/2026 11 AM PDT 2.16 1 0 Normal
08/20/2026 12 PM PDT 2.16 1 0 Normal
08/20/2026 01 PM PDT 2.16 1 0 Normal
08/20/2026 02 PM PDT 2.16 1 0 Normal
08/20/2026 03 PM PDT 2.16 1 0 Normal
08/20/2026 04 PM PDT 2.16 1 0 Normal
08/20/2026 05 PM PDT 2.15 1 - Normal
08/20/2026 06 PM PDT 2.15 1 0 Normal
08/20/2026 07 PM PDT 2.15 1 0 Normal
08/20/2026 08 PM PDT 2.15 1 0 Normal
08/20/2026 09 PM PDT 2.15 1 0 Normal
08/20/2026 10 PM PDT 2.15 1 0 Normal
08/20/2026 11 PM PDT 2.15 1 0 Normal
08/21/2026 12 AM PDT 2.15 1 0 Normal
08/21/2026 01 AM PDT 2.15 1 0 Normal
08/21/2026 02 AM PDT 2.15 1 0 Normal
08/21/2026 03 AM PDT 2.15 1 0 Normal
08/21/2026 04 AM PDT 2.15 1 0 Normal
08/21/2026 05 AM PDT 2.15 1 0 Normal
08/21/2026 06 AM PDT 2.15 1 0 Normal
08/21/2026 07 AM PDT 2.15 1 0 Normal
08/21/2026 08 AM PDT 2.15 1 0 Normal
08/21/2026 09 AM PDT 2.15 1 0 Normal
08/21/2026 10 AM PDT 2.15 1 0 Normal
08/21/2026 11 AM PDT 2.15 1 0 Normal
08/21/2026 12 PM PDT 2.15 1 0 Normal
08/21/2026 01 PM PDT 2.15 1 0 Normal
08/21/2026 02 PM PDT 2.15 1 0 Normal
08/21/2026 03 PM PDT 2.15 1 0 Normal
08/21/2026 04 PM PDT 2.15 1 0 Normal
08/21/2026 05 PM PDT 2.15 1 0 Normal
08/21/2026 06 PM PDT 2.15 1 0 Normal
08/21/2026 07 PM PDT 2.15 1 0 Normal
08/21/2026 08 PM PDT 2.15 1 0 Normal
08/21/2026 09 PM PDT 2.15 1 0 Normal
08/21/2026 10 PM PDT 2.15 1 0 Normal
08/21/2026 11 PM PDT 2.15 1 0 Normal
08/22/2026 12 AM PDT 2.15 1 0 Normal
08/22/2026 01 AM PDT 2.15 1 0 Normal
08/22/2026 02 AM PDT 2.15 1 0 Normal
08/22/2026 03 AM PDT 2.15 1 0 Normal
08/22/2026 04 AM PDT 2.15 1 0 Normal
08/22/2026 05 AM PDT 2.15 1 0 Normal
08/22/2026 06 AM PDT 2.15 1 0 Normal
08/22/2026 07 AM PDT 2.15 1 0 Normal
08/22/2026 08 AM PDT 2.15 1 0 Normal
08/22/2026 09 AM PDT 2.15 1 0 Normal
08/22/2026 10 AM PDT 2.15 1 0 Normal
08/22/2026 11 AM PDT 2.15 1 0 Normal
08/22/2026 12 PM PDT 2.15 1 0 Normal
08/22/2026 01 PM PDT 2.15 1 0 Normal
08/22/2026 02 PM PDT 2.15 1 0 Normal
08/22/2026 03 PM PDT 2.15 1 0 Normal
08/22/2026 04 PM PDT 2.15 1 0 Normal
08/22/2026 05 PM PDT 2.15 1 0 Normal
08/22/2026 06 PM PDT 2.15 1 0 Normal
08/22/2026 07 PM PDT 2.15 1 0 Normal
08/22/2026 08 PM PDT 2.15 1 0 Normal
08/22/2026 09 PM PDT 2.15 1 0 Normal
08/22/2026 10 PM PDT 2.15 1 0 Normal
08/22/2026 11 PM PDT 2.15 1 0 Normal
08/23/2026 12 AM PDT 2.15 1 0 Normal
08/23/2026 01 AM PDT 2.15 1 0 Normal
08/23/2026 02 AM PDT 2.15 1 0 Normal
08/23/2026 03 AM PDT 2.15 1 0 Normal
08/23/2026 04 AM PDT 2.15 1 0 Normal
08/23/2026 05 AM PDT 2.15 1 0 Normal
08/23/2026 06 AM PDT 2.15 1 0 Normal
08/23/2026 07 AM PDT 2.15 1 0 Normal
08/23/2026 08 AM PDT 2.15 1 0 Normal
08/23/2026 09 AM PDT 2.15 1 0 Normal
08/23/2026 10 AM PDT 2.15 1 0 Normal
08/23/2026 11 AM PDT 2.15 1 0 Normal
08/23/2026 12 PM PDT 2.15 1 0 Normal
08/23/2026 01 PM PDT 2.15 1 0 Normal
08/23/2026 02 PM PDT 2.15 1 0 Normal
08/23/2026 03 PM PDT 2.15 1 0 Normal
08/23/2026 04 PM PDT 2.15 1 0 Normal
08/23/2026 05 PM PDT 2.15 1 0 Normal
08/23/2026 06 PM PDT 2.15 1 0 Normal
08/23/2026 07 PM PDT 2.15 1 0 Normal
08/23/2026 08 PM PDT 2.15 1 0 Normal
08/23/2026 09 PM PDT 2.15 1 0 Normal
08/23/2026 10 PM PDT 2.15 1 0 Normal
08/23/2026 11 PM PDT 2.15 1 0 Normal
08/24/2026 12 AM PDT 2.15 1 0 Normal
08/24/2026 01 AM PDT 2.15 1 0 Normal
08/24/2026 02 AM PDT 2.15 1 0 Normal
08/24/2026 03 AM PDT 2.15 1 0 Normal
08/24/2026 04 AM PDT 2.15 1 0 Normal
08/24/2026 05 AM PDT 2.15 1 0 Normal
08/24/2026 06 AM PDT 2.15 1 0 Normal
08/24/2026 07 AM PDT 2.15 1 0 Normal
08/24/2026 08 AM PDT 2.15 1 0 Normal
08/24/2026 09 AM PDT 2.15 1 0 Normal
08/24/2026 10 AM PDT 2.15 1 0 Normal
08/24/2026 11 AM PDT 2.15 1 0 Normal
08/24/2026 12 PM PDT 2.15 1 0 Normal
08/24/2026 01 PM PDT 2.15 1 0 Normal
08/24/2026 02 PM PDT 2.15 1 0 Normal
08/24/2026 03 PM PDT 2.15 1 0 Normal
08/24/2026 04 PM PDT 2.15 1 0 Normal
08/24/2026 05 PM PDT 2.15 1 0 Normal
08/24/2026 06 PM PDT 2.15 1 0 Normal
08/24/2026 07 PM PDT 2.15 1 0 Normal
08/24/2026 08 PM PDT 2.15 1 0 Normal
08/24/2026 09 PM PDT 2.15 1 0 Normal
08/24/2026 10 PM PDT 2.15 1 0 Normal
08/24/2026 11 PM PDT 2.15 1 0 Normal
08/25/2026 12 AM PDT 2.15 1 0 Normal
08/25/2026 01 AM PDT 2.15 1 0 Normal
08/25/2026 02 AM PDT 2.15 1 0 Normal
08/25/2026 03 AM PDT 2.15 1 0 Normal
08/25/2026 04 AM PDT 2.15 1 0 Normal
08/25/2026 05 AM PDT 2.15 1 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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