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NAPA RIVER - SAINT HELENA (SHEC1)
| Latitude: 38.51º N | Longitude: 122.45º W | Elevation: 195 Feet | | | |
| Location: Napa County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Jul 15 2025 at 7:29 AM PDT | Next Issuance: | Jul 16 2025 at 9:00 AM PDT
| |
| Action/Monitor: 16.0 Feet | Minor Flood: 18.0 Feet | Moderate Flood: 20.0 Feet | Major Flood: 22.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Napa River - Saint Helena (SHEC1)
#
# File Generation Time: 07/15/2025 at 07:29 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/10/2025 at 09:00 PM PDT
# Maximum Observed Stage: 1.23 Feet
# Maximum Observed Flow: 2 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/15/2025 at 08:00 AM PDT
# Maximum Forecast Stage: 1.20 Feet
# Maximum Forecast Flow: 2 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/10/2025 07 AM PDT 1.22 2 Normal
07/10/2025 08 AM PDT 1.23 2 + Normal
07/10/2025 09 AM PDT 1.23 2 0 Normal
07/10/2025 10 AM PDT 1.23 2 0 Normal
07/10/2025 11 AM PDT 1.23 2 0 Normal
07/10/2025 12 PM PDT 1.23 2 0 Normal
07/10/2025 01 PM PDT 1.23 2 0 Normal
07/10/2025 02 PM PDT 1.23 2 0 Normal
07/10/2025 03 PM PDT 1.23 2 0 Normal
07/10/2025 04 PM PDT 1.23 2 0 Normal
07/10/2025 05 PM PDT 1.23 2 0 Normal
07/10/2025 06 PM PDT 1.23 2 0 Normal
07/10/2025 07 PM PDT 1.23 2 0 Normal
07/10/2025 08 PM PDT 1.23 2 0 Normal
07/10/2025 09 PM PDT 1.23 2 0 Normal
07/10/2025 10 PM PDT 1.22 2 - Normal
07/10/2025 11 PM PDT 1.22 2 0 Normal
07/11/2025 12 AM PDT 1.22 2 0 Normal
07/11/2025 01 AM PDT 1.22 2 0 Normal
07/11/2025 02 AM PDT 1.22 2 0 Normal
07/11/2025 03 AM PDT 1.22 2 0 Normal
07/11/2025 04 AM PDT 1.22 2 0 Normal
07/11/2025 05 AM PDT 1.22 2 0 Normal
07/11/2025 06 AM PDT 1.22 2 0 Normal
07/11/2025 07 AM PDT 1.22 2 0 Normal
07/11/2025 08 AM PDT 1.22 2 0 Normal
07/11/2025 09 AM PDT 1.22 2 0 Normal
07/11/2025 10 AM PDT 1.22 2 0 Normal
07/11/2025 11 AM PDT 1.22 2 0 Normal
07/11/2025 12 PM PDT 1.22 2 0 Normal
07/11/2025 01 PM PDT 1.22 2 0 Normal
07/11/2025 02 PM PDT 1.22 2 0 Normal
07/11/2025 03 PM PDT 1.22 2 0 Normal
07/11/2025 04 PM PDT 1.22 2 0 Normal
07/11/2025 05 PM PDT 1.22 2 0 Normal
07/11/2025 06 PM PDT 1.22 2 0 Normal
07/11/2025 07 PM PDT 1.22 2 0 Normal
07/11/2025 08 PM PDT 1.22 2 0 Normal
07/11/2025 09 PM PDT 1.22 2 0 Normal
07/11/2025 10 PM PDT 1.22 2 0 Normal
07/11/2025 11 PM PDT 1.22 2 0 Normal
07/12/2025 12 AM PDT 1.22 2 0 Normal
07/12/2025 01 AM PDT 1.22 2 0 Normal
07/12/2025 02 AM PDT 1.22 2 0 Normal
07/12/2025 03 AM PDT 1.21 2 - Normal
07/12/2025 04 AM PDT 1.21 2 0 Normal
07/12/2025 05 AM PDT 1.21 2 0 Normal
07/12/2025 06 AM PDT 1.21 2 0 Normal
07/12/2025 07 AM PDT 1.21 2 0 Normal
07/12/2025 08 AM PDT 1.21 2 0 Normal
07/12/2025 09 AM PDT 1.20 2 - Normal
07/12/2025 10 AM PDT 1.21 2 + Normal
07/12/2025 11 AM PDT 1.21 2 0 Normal
07/12/2025 12 PM PDT 1.21 2 0 Normal
07/12/2025 01 PM PDT 1.21 2 0 Normal
07/12/2025 02 PM PDT 1.21 2 0 Normal
07/12/2025 03 PM PDT 1.21 2 0 Normal
07/12/2025 04 PM PDT 1.22 2 + Normal
07/12/2025 05 PM PDT 1.22 2 0 Normal
07/12/2025 06 PM PDT 1.22 2 0 Normal
07/12/2025 07 PM PDT 1.22 2 0 Normal
07/12/2025 08 PM PDT 1.22 2 0 Normal
07/12/2025 09 PM PDT 1.22 2 0 Normal
07/12/2025 10 PM PDT 1.22 2 0 Normal
07/12/2025 11 PM PDT 1.20 2 - Normal
07/13/2025 12 AM PDT 1.20 2 0 Normal
07/13/2025 01 AM PDT 1.20 2 0 Normal
07/13/2025 02 AM PDT 1.20 2 0 Normal
07/13/2025 03 AM PDT 1.20 2 0 Normal
07/13/2025 04 AM PDT 1.20 2 0 Normal
07/13/2025 05 AM PDT 1.21 2 + Normal
07/13/2025 06 AM PDT 1.20 2 - Normal
07/13/2025 07 AM PDT 1.20 2 0 Normal
07/13/2025 08 AM PDT 1.20 2 0 Normal
07/13/2025 09 AM PDT 1.21 2 + Normal
07/13/2025 10 AM PDT 1.21 2 0 Normal
07/13/2025 11 AM PDT 1.21 2 0 Normal
07/13/2025 12 PM PDT 1.21 2 0 Normal
07/13/2025 01 PM PDT 1.21 2 0 Normal
07/13/2025 02 PM PDT 1.21 2 0 Normal
07/13/2025 03 PM PDT 1.21 2 0 Normal
07/13/2025 04 PM PDT 1.21 2 0 Normal
07/13/2025 05 PM PDT 1.21 2 0 Normal
07/13/2025 06 PM PDT 1.21 2 0 Normal
07/13/2025 07 PM PDT 1.21 2 0 Normal
07/13/2025 08 PM PDT 1.21 2 0 Normal
07/13/2025 09 PM PDT 1.21 2 0 Normal
07/13/2025 10 PM PDT 1.21 2 0 Normal
07/13/2025 11 PM PDT 1.20 2 - Normal
07/14/2025 12 AM PDT 1.19 2 - Normal
07/14/2025 01 AM PDT 1.19 2 0 Normal
07/14/2025 02 AM PDT 1.19 2 0 Normal
07/14/2025 03 AM PDT 1.19 2 0 Normal
07/14/2025 04 AM PDT 1.19 2 0 Normal
07/14/2025 05 AM PDT 1.20 2 + Normal
07/14/2025 06 AM PDT 1.20 2 0 Normal
07/14/2025 07 AM PDT 1.20 2 0 Normal
07/14/2025 08 AM PDT 1.20 2 0 Normal
07/14/2025 09 AM PDT 1.21 2 + Normal
07/14/2025 10 AM PDT 1.21 2 0 Normal
07/14/2025 11 AM PDT 1.21 2 0 Normal
07/14/2025 12 PM PDT 1.21 2 0 Normal
07/14/2025 01 PM PDT 1.21 2 0 Normal
07/14/2025 02 PM PDT 1.21 2 0 Normal
07/14/2025 03 PM PDT 1.21 2 0 Normal
07/14/2025 04 PM PDT 1.21 2 0 Normal
07/14/2025 05 PM PDT 1.21 2 0 Normal
07/14/2025 06 PM PDT 1.21 2 0 Normal
07/14/2025 07 PM PDT 1.20 2 - Normal
07/14/2025 08 PM PDT 1.20 2 0 Normal
07/14/2025 09 PM PDT 1.20 2 0 Normal
07/14/2025 10 PM PDT 1.20 2 0 Normal
07/14/2025 11 PM PDT 1.20 2 0 Normal
07/15/2025 12 AM PDT 1.20 2 0 Normal
07/15/2025 01 AM PDT 1.19 2 - Normal
07/15/2025 02 AM PDT 1.19 2 0 Normal
07/15/2025 03 AM PDT 1.19 2 0 Normal
07/15/2025 04 AM PDT 1.19 2 0 Normal
07/15/2025 05 AM PDT 1.19 2 0 Normal
07/15/2025 06 AM PDT 1.20 2 + Normal
07/15/2025 07 AM PDT 1.20 2 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/15/2025 08 AM PDT 1.20 2 Normal
07/15/2025 09 AM PDT 1.20 2 0 Normal
07/15/2025 10 AM PDT 1.20 2 0 Normal
07/15/2025 11 AM PDT 1.20 2 0 Normal
07/15/2025 12 PM PDT 1.20 2 0 Normal
07/15/2025 01 PM PDT 1.20 2 0 Normal
07/15/2025 02 PM PDT 1.20 2 0 Normal
07/15/2025 03 PM PDT 1.20 2 0 Normal
07/15/2025 04 PM PDT 1.20 2 0 Normal
07/15/2025 05 PM PDT 1.20 2 0 Normal
07/15/2025 06 PM PDT 1.20 2 0 Normal
07/15/2025 07 PM PDT 1.20 2 0 Normal
07/15/2025 08 PM PDT 1.20 2 0 Normal
07/15/2025 09 PM PDT 1.20 2 0 Normal
07/15/2025 10 PM PDT 1.20 2 0 Normal
07/15/2025 11 PM PDT 1.20 2 0 Normal
07/16/2025 12 AM PDT 1.20 2 0 Normal
07/16/2025 01 AM PDT 1.20 2 0 Normal
07/16/2025 02 AM PDT 1.20 2 0 Normal
07/16/2025 03 AM PDT 1.20 2 0 Normal
07/16/2025 04 AM PDT 1.20 2 0 Normal
07/16/2025 05 AM PDT 1.20 2 0 Normal
07/16/2025 06 AM PDT 1.20 2 0 Normal
07/16/2025 07 AM PDT 1.20 2 0 Normal
07/16/2025 08 AM PDT 1.20 2 0 Normal
07/16/2025 09 AM PDT 1.20 2 0 Normal
07/16/2025 10 AM PDT 1.20 2 0 Normal
07/16/2025 11 AM PDT 1.20 2 0 Normal
07/16/2025 12 PM PDT 1.20 2 0 Normal
07/16/2025 01 PM PDT 1.20 2 0 Normal
07/16/2025 02 PM PDT 1.20 2 0 Normal
07/16/2025 03 PM PDT 1.20 2 0 Normal
07/16/2025 04 PM PDT 1.20 2 0 Normal
07/16/2025 05 PM PDT 1.20 2 0 Normal
07/16/2025 06 PM PDT 1.20 2 0 Normal
07/16/2025 07 PM PDT 1.20 2 0 Normal
07/16/2025 08 PM PDT 1.20 2 0 Normal
07/16/2025 09 PM PDT 1.20 2 0 Normal
07/16/2025 10 PM PDT 1.20 2 0 Normal
07/16/2025 11 PM PDT 1.20 2 0 Normal
07/17/2025 12 AM PDT 1.20 2 0 Normal
07/17/2025 01 AM PDT 1.20 2 0 Normal
07/17/2025 02 AM PDT 1.20 2 0 Normal
07/17/2025 03 AM PDT 1.20 2 0 Normal
07/17/2025 04 AM PDT 1.20 2 0 Normal
07/17/2025 05 AM PDT 1.20 2 0 Normal
07/17/2025 06 AM PDT 1.20 2 0 Normal
07/17/2025 07 AM PDT 1.20 2 0 Normal
07/17/2025 08 AM PDT 1.20 2 0 Normal
07/17/2025 09 AM PDT 1.20 2 0 Normal
07/17/2025 10 AM PDT 1.20 2 0 Normal
07/17/2025 11 AM PDT 1.20 2 0 Normal
07/17/2025 12 PM PDT 1.20 2 0 Normal
07/17/2025 01 PM PDT 1.20 2 0 Normal
07/17/2025 02 PM PDT 1.20 2 0 Normal
07/17/2025 03 PM PDT 1.20 2 0 Normal
07/17/2025 04 PM PDT 1.20 2 0 Normal
07/17/2025 05 PM PDT 1.20 2 0 Normal
07/17/2025 06 PM PDT 1.20 2 0 Normal
07/17/2025 07 PM PDT 1.20 2 0 Normal
07/17/2025 08 PM PDT 1.20 2 0 Normal
07/17/2025 09 PM PDT 1.20 2 0 Normal
07/17/2025 10 PM PDT 1.20 2 0 Normal
07/17/2025 11 PM PDT 1.20 2 0 Normal
07/18/2025 12 AM PDT 1.20 2 0 Normal
07/18/2025 01 AM PDT 1.20 2 0 Normal
07/18/2025 02 AM PDT 1.20 2 0 Normal
07/18/2025 03 AM PDT 1.20 2 0 Normal
07/18/2025 04 AM PDT 1.20 2 0 Normal
07/18/2025 05 AM PDT 1.20 2 0 Normal
07/18/2025 06 AM PDT 1.20 2 0 Normal
07/18/2025 07 AM PDT 1.20 2 0 Normal
07/18/2025 08 AM PDT 1.20 2 0 Normal
07/18/2025 09 AM PDT 1.20 2 0 Normal
07/18/2025 10 AM PDT 1.20 2 0 Normal
07/18/2025 11 AM PDT 1.20 2 0 Normal
07/18/2025 12 PM PDT 1.20 2 0 Normal
07/18/2025 01 PM PDT 1.20 2 0 Normal
07/18/2025 02 PM PDT 1.20 2 0 Normal
07/18/2025 03 PM PDT 1.20 2 0 Normal
07/18/2025 04 PM PDT 1.20 2 0 Normal
07/18/2025 05 PM PDT 1.20 2 0 Normal
07/18/2025 06 PM PDT 1.20 2 0 Normal
07/18/2025 07 PM PDT 1.20 2 0 Normal
07/18/2025 08 PM PDT 1.20 2 0 Normal
07/18/2025 09 PM PDT 1.20 2 0 Normal
07/18/2025 10 PM PDT 1.20 2 0 Normal
07/18/2025 11 PM PDT 1.20 2 0 Normal
07/19/2025 12 AM PDT 1.20 2 0 Normal
07/19/2025 01 AM PDT 1.20 2 0 Normal
07/19/2025 02 AM PDT 1.20 2 0 Normal
07/19/2025 03 AM PDT 1.20 2 0 Normal
07/19/2025 04 AM PDT 1.20 2 0 Normal
07/19/2025 05 AM PDT 1.20 2 0 Normal
07/19/2025 06 AM PDT 1.20 2 0 Normal
07/19/2025 07 AM PDT 1.20 2 0 Normal
07/19/2025 08 AM PDT 1.20 2 0 Normal
07/19/2025 09 AM PDT 1.20 2 0 Normal
07/19/2025 10 AM PDT 1.20 2 0 Normal
07/19/2025 11 AM PDT 1.20 2 0 Normal
07/19/2025 12 PM PDT 1.20 2 0 Normal
07/19/2025 01 PM PDT 1.20 2 0 Normal
07/19/2025 02 PM PDT 1.20 2 0 Normal
07/19/2025 03 PM PDT 1.20 2 0 Normal
07/19/2025 04 PM PDT 1.20 2 0 Normal
07/19/2025 05 PM PDT 1.20 2 0 Normal
07/19/2025 06 PM PDT 1.20 2 0 Normal
07/19/2025 07 PM PDT 1.20 2 0 Normal
07/19/2025 08 PM PDT 1.20 2 0 Normal
07/19/2025 09 PM PDT 1.20 2 0 Normal
07/19/2025 10 PM PDT 1.20 2 0 Normal
07/19/2025 11 PM PDT 1.20 2 0 Normal
07/20/2025 12 AM PDT 1.20 2 0 Normal
07/20/2025 01 AM PDT 1.20 2 0 Normal
07/20/2025 02 AM PDT 1.20 2 0 Normal
07/20/2025 03 AM PDT 1.20 2 0 Normal
07/20/2025 04 AM PDT 1.20 2 0 Normal
07/20/2025 05 AM PDT 1.20 2 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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