NAPA RIVER - SAINT HELENA (SHEC1)
Latitude: 38.51º NLongitude: 122.45º WElevation: 195 Feet
Location: Napa County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jun 01 2025 at 8:17 AM PDTNext Issuance: Jun 02 2025 at 9:00 AM PDT
Action/Monitor: 16.0 FeetMinor Flood: 18.0 FeetModerate Flood: 20.0 FeetMajor Flood: 22.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Napa River - Saint Helena (SHEC1)
#
# File Generation Time:  06/01/2025 at 08:17 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/27/2025 at 12:00 PM PDT
# Maximum Observed Stage:                       1.50 Feet
# Maximum Observed Flow:                        10 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/01/2025 at 09:00 AM PDT
# Maximum Forecast Stage:                       1.41 Feet
# Maximum Forecast Flow:                        5 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/27/2025 08 AM PDT            1.49              9                        Normal
  05/27/2025 09 AM PDT            1.49              9         0              Normal
  05/27/2025 10 AM PDT            1.50             10         +              Normal
  05/27/2025 11 AM PDT            1.50             10         0              Normal
  05/27/2025 12 PM PDT            1.50             10         0              Normal
  05/27/2025 01 PM PDT            1.49              9         -              Normal
  05/27/2025 02 PM PDT            1.49              9         0              Normal
  05/27/2025 03 PM PDT            1.49              9         0              Normal
  05/27/2025 04 PM PDT            1.49              9         0              Normal
  05/27/2025 05 PM PDT            1.48              9         -              Normal
  05/27/2025 06 PM PDT            1.48              9         0              Normal
  05/27/2025 07 PM PDT            1.48              9         0              Normal
  05/27/2025 08 PM PDT            1.48              9         0              Normal
  05/27/2025 09 PM PDT            1.48              9         0              Normal
  05/27/2025 10 PM PDT            1.48              9         0              Normal
  05/27/2025 11 PM PDT            1.48              9         0              Normal
  05/28/2025 12 AM PDT            1.47              8         -              Normal
  05/28/2025 01 AM PDT            1.48              9         +              Normal
  05/28/2025 02 AM PDT            1.47              8         -              Normal
  05/28/2025 03 AM PDT            1.47              8         0              Normal
  05/28/2025 04 AM PDT            1.47              8         0              Normal
  05/28/2025 05 AM PDT            1.46              8         -              Normal
  05/28/2025 06 AM PDT            1.47              8         +              Normal
  05/28/2025 07 AM PDT            1.48              9         +              Normal
  05/28/2025 08 AM PDT            1.48              9         0              Normal
  05/28/2025 09 AM PDT            1.48              9         0              Normal
  05/28/2025 10 AM PDT            1.48              9         0              Normal
  05/28/2025 11 AM PDT            1.49              9         +              Normal
  05/28/2025 12 PM PDT            1.49              9         0              Normal
  05/28/2025 01 PM PDT            1.49              9         0              Normal
  05/28/2025 02 PM PDT            1.49              9         0              Normal
  05/28/2025 03 PM PDT            1.49              9         0              Normal
  05/28/2025 04 PM PDT            1.49              9         0              Normal
  05/28/2025 05 PM PDT            1.48              9         -              Normal
  05/28/2025 06 PM PDT            1.48              9         0              Normal
  05/28/2025 07 PM PDT            1.48              9         0              Normal
  05/28/2025 08 PM PDT            1.47              8         -              Normal
  05/28/2025 09 PM PDT            1.47              8         0              Normal
  05/28/2025 10 PM PDT            1.46              8         -              Normal
  05/28/2025 11 PM PDT            1.46              8         0              Normal
  05/29/2025 12 AM PDT            1.46              8         0              Normal
  05/29/2025 01 AM PDT            1.46              8         0              Normal
  05/29/2025 02 AM PDT            1.46              8         0              Normal
  05/29/2025 03 AM PDT            1.46              8         0              Normal
  05/29/2025 04 AM PDT            1.46              8         0              Normal
  05/29/2025 05 AM PDT            1.45              7         -              Normal
  05/29/2025 06 AM PDT            1.45              7         0              Normal
  05/29/2025 07 AM PDT            1.47              8         +              Normal
  05/29/2025 08 AM PDT            1.47              8         0              Normal
  05/29/2025 09 AM PDT            1.47              8         0              Normal
  05/29/2025 10 AM PDT            1.47              8         0              Normal
  05/29/2025 11 AM PDT            1.46              8         -              Normal
  05/29/2025 12 PM PDT            1.46              8         0              Normal
  05/29/2025 01 PM PDT            1.46              8         0              Normal
  05/29/2025 02 PM PDT            1.45              7         -              Normal
  05/29/2025 03 PM PDT            1.46              8         +              Normal
  05/29/2025 04 PM PDT            1.46              8         0              Normal
  05/29/2025 05 PM PDT            1.46              8         0              Normal
  05/29/2025 06 PM PDT            1.46              8         0              Normal
  05/29/2025 07 PM PDT            1.46              8         0              Normal
  05/29/2025 08 PM PDT            1.46              8         0              Normal
  05/29/2025 09 PM PDT            1.45              7         -              Normal
  05/29/2025 10 PM PDT            1.44              7         -              Normal
  05/29/2025 11 PM PDT            1.44              7         0              Normal
  05/30/2025 12 AM PDT            1.45              7         +              Normal
  05/30/2025 01 AM PDT            1.45              7         0              Normal
  05/30/2025 02 AM PDT            1.44              7         -              Normal
  05/30/2025 03 AM PDT            1.44              7         0              Normal
  05/30/2025 04 AM PDT            1.44              7         0              Normal
  05/30/2025 05 AM PDT            1.43              6         -              Normal
  05/30/2025 06 AM PDT            1.44              7         +              Normal
  05/30/2025 07 AM PDT            1.44              7         0              Normal
  05/30/2025 08 AM PDT            1.45              7         +              Normal
  05/30/2025 09 AM PDT            1.45              7         0              Normal
  05/30/2025 10 AM PDT            1.45              7         0              Normal
  05/30/2025 11 AM PDT            1.45              7         0              Normal
  05/30/2025 12 PM PDT            1.45              7         0              Normal
  05/30/2025 01 PM PDT            1.45              7         0              Normal
  05/30/2025 02 PM PDT            1.45              7         0              Normal
  05/30/2025 03 PM PDT            1.44              7         -              Normal
  05/30/2025 04 PM PDT            1.44              7         0              Normal
  05/30/2025 05 PM PDT            1.44              7         0              Normal
  05/30/2025 06 PM PDT            1.44              7         0              Normal
  05/30/2025 07 PM PDT            1.44              7         0              Normal
  05/30/2025 08 PM PDT            1.44              7         0              Normal
  05/30/2025 09 PM PDT            1.44              7         0              Normal
  05/30/2025 10 PM PDT            1.43              6         -              Normal
  05/30/2025 11 PM PDT            1.42              6         -              Normal
  05/31/2025 12 AM PDT            1.43              6         +              Normal
  05/31/2025 01 AM PDT            1.42              6         -              Normal
  05/31/2025 02 AM PDT            1.43              6         +              Normal
  05/31/2025 03 AM PDT            1.42              6         -              Normal
  05/31/2025 04 AM PDT            1.42              6         0              Normal
  05/31/2025 05 AM PDT            1.42              6         0              Normal
  05/31/2025 06 AM PDT            1.42              6         0              Normal
  05/31/2025 07 AM PDT            1.42              6         0              Normal
  05/31/2025 08 AM PDT            1.43              6         +              Normal
  05/31/2025 09 AM PDT            1.43              6         0              Normal
  05/31/2025 10 AM PDT            1.43              6         0              Normal
  05/31/2025 11 AM PDT            1.43              6         0              Normal
  05/31/2025 12 PM PDT            1.43              6         0              Normal
  05/31/2025 01 PM PDT            1.43              6         0              Normal
  05/31/2025 02 PM PDT            1.43              6         0              Normal
  05/31/2025 03 PM PDT            1.43              6         0              Normal
  05/31/2025 04 PM PDT            1.43              6         0              Normal
  05/31/2025 05 PM PDT            1.43              6         0              Normal
  05/31/2025 06 PM PDT            1.43              6         0              Normal
  05/31/2025 07 PM PDT            1.43              6         0              Normal
  05/31/2025 08 PM PDT            1.43              6         0              Normal
  05/31/2025 09 PM PDT            1.43              6         0              Normal
  05/31/2025 10 PM PDT            1.41              5         -              Normal
  05/31/2025 11 PM PDT            1.41              5         0              Normal
  06/01/2025 12 AM PDT            1.41              5         0              Normal
  06/01/2025 01 AM PDT            1.42              6         +              Normal
  06/01/2025 02 AM PDT            1.42              6         0              Normal
  06/01/2025 03 AM PDT            1.41              5         -              Normal
  06/01/2025 04 AM PDT            1.41              5         0              Normal
  06/01/2025 05 AM PDT            1.40              5         -              Normal
  06/01/2025 06 AM PDT            1.41              5         +              Normal
  06/01/2025 07 AM PDT            1.41              5         0              Normal
  06/01/2025 08 AM PDT            1.41              5         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/01/2025 09 AM PDT            1.41              5                        Normal
  06/01/2025 10 AM PDT            1.41              5         0              Normal
  06/01/2025 11 AM PDT            1.41              5         0              Normal
  06/01/2025 12 PM PDT            1.41              5         0              Normal
  06/01/2025 01 PM PDT            1.41              5         0              Normal
  06/01/2025 02 PM PDT            1.41              5         0              Normal
  06/01/2025 03 PM PDT            1.41              5         0              Normal
  06/01/2025 04 PM PDT            1.41              5         0              Normal
  06/01/2025 05 PM PDT            1.41              5         0              Normal
  06/01/2025 06 PM PDT            1.41              5         0              Normal
  06/01/2025 07 PM PDT            1.41              5         0              Normal
  06/01/2025 08 PM PDT            1.41              5         0              Normal
  06/01/2025 09 PM PDT            1.41              5         0              Normal
  06/01/2025 10 PM PDT            1.41              5         0              Normal
  06/01/2025 11 PM PDT            1.41              5         0              Normal
  06/02/2025 12 AM PDT            1.41              5         0              Normal
  06/02/2025 01 AM PDT            1.41              5         0              Normal
  06/02/2025 02 AM PDT            1.41              5         0              Normal
  06/02/2025 03 AM PDT            1.41              5         0              Normal
  06/02/2025 04 AM PDT            1.40              5         -              Normal
  06/02/2025 05 AM PDT            1.40              5         0              Normal
  06/02/2025 06 AM PDT            1.40              5         0              Normal
  06/02/2025 07 AM PDT            1.40              5         0              Normal
  06/02/2025 08 AM PDT            1.40              5         0              Normal
  06/02/2025 09 AM PDT            1.40              5         0              Normal
  06/02/2025 10 AM PDT            1.40              5         0              Normal
  06/02/2025 11 AM PDT            1.40              5         0              Normal
  06/02/2025 12 PM PDT            1.40              5         0              Normal
  06/02/2025 01 PM PDT            1.40              5         0              Normal
  06/02/2025 02 PM PDT            1.40              5         0              Normal
  06/02/2025 03 PM PDT            1.40              5         0              Normal
  06/02/2025 04 PM PDT            1.40              5         0              Normal
  06/02/2025 05 PM PDT            1.40              5         0              Normal
  06/02/2025 06 PM PDT            1.40              5         0              Normal
  06/02/2025 07 PM PDT            1.40              5         0              Normal
  06/02/2025 08 PM PDT            1.40              5         0              Normal
  06/02/2025 09 PM PDT            1.40              5         0              Normal
  06/02/2025 10 PM PDT            1.40              5         0              Normal
  06/02/2025 11 PM PDT            1.40              5         0              Normal
  06/03/2025 12 AM PDT            1.40              5         0              Normal
  06/03/2025 01 AM PDT            1.40              5         0              Normal
  06/03/2025 02 AM PDT            1.40              5         0              Normal
  06/03/2025 03 AM PDT            1.40              5         0              Normal
  06/03/2025 04 AM PDT            1.40              5         0              Normal
  06/03/2025 05 AM PDT            1.40              5         0              Normal
  06/03/2025 06 AM PDT            1.40              5         0              Normal
  06/03/2025 07 AM PDT            1.40              5         0              Normal
  06/03/2025 08 AM PDT            1.40              5         0              Normal
  06/03/2025 09 AM PDT            1.40              5         0              Normal
  06/03/2025 10 AM PDT            1.40              5         0              Normal
  06/03/2025 11 AM PDT            1.40              5         0              Normal
  06/03/2025 12 PM PDT            1.40              5         0              Normal
  06/03/2025 01 PM PDT            1.40              5         0              Normal
  06/03/2025 02 PM PDT            1.40              5         0              Normal
  06/03/2025 03 PM PDT            1.40              5         0              Normal
  06/03/2025 04 PM PDT            1.39              4         -              Normal
  06/03/2025 05 PM PDT            1.39              4         0              Normal
  06/03/2025 06 PM PDT            1.39              4         0              Normal
  06/03/2025 07 PM PDT            1.39              4         0              Normal
  06/03/2025 08 PM PDT            1.39              4         0              Normal
  06/03/2025 09 PM PDT            1.39              4         0              Normal
  06/03/2025 10 PM PDT            1.39              4         0              Normal
  06/03/2025 11 PM PDT            1.39              4         0              Normal
  06/04/2025 12 AM PDT            1.39              4         0              Normal
  06/04/2025 01 AM PDT            1.39              4         0              Normal
  06/04/2025 02 AM PDT            1.39              4         0              Normal
  06/04/2025 03 AM PDT            1.39              4         0              Normal
  06/04/2025 04 AM PDT            1.39              4         0              Normal
  06/04/2025 05 AM PDT            1.39              4         0              Normal
  06/04/2025 06 AM PDT            1.39              4         0              Normal
  06/04/2025 07 AM PDT            1.39              4         0              Normal
  06/04/2025 08 AM PDT            1.39              4         0              Normal
  06/04/2025 09 AM PDT            1.39              4         0              Normal
  06/04/2025 10 AM PDT            1.39              4         0              Normal
  06/04/2025 11 AM PDT            1.39              4         0              Normal
  06/04/2025 12 PM PDT            1.39              4         0              Normal
  06/04/2025 01 PM PDT            1.39              4         0              Normal
  06/04/2025 02 PM PDT            1.39              4         0              Normal
  06/04/2025 03 PM PDT            1.39              4         0              Normal
  06/04/2025 04 PM PDT            1.39              4         0              Normal
  06/04/2025 05 PM PDT            1.39              4         0              Normal
  06/04/2025 06 PM PDT            1.39              4         0              Normal
  06/04/2025 07 PM PDT            1.39              4         0              Normal
  06/04/2025 08 PM PDT            1.39              4         0              Normal
  06/04/2025 09 PM PDT            1.39              4         0              Normal
  06/04/2025 10 PM PDT            1.39              4         0              Normal
  06/04/2025 11 PM PDT            1.39              4         0              Normal
  06/05/2025 12 AM PDT            1.39              4         0              Normal
  06/05/2025 01 AM PDT            1.39              4         0              Normal
  06/05/2025 02 AM PDT            1.39              4         0              Normal
  06/05/2025 03 AM PDT            1.39              4         0              Normal
  06/05/2025 04 AM PDT            1.39              4         0              Normal
  06/05/2025 05 AM PDT            1.38              4         -              Normal
  06/05/2025 06 AM PDT            1.38              4         0              Normal
  06/05/2025 07 AM PDT            1.38              4         0              Normal
  06/05/2025 08 AM PDT            1.38              4         0              Normal
  06/05/2025 09 AM PDT            1.38              4         0              Normal
  06/05/2025 10 AM PDT            1.38              4         0              Normal
  06/05/2025 11 AM PDT            1.38              4         0              Normal
  06/05/2025 12 PM PDT            1.38              4         0              Normal
  06/05/2025 01 PM PDT            1.38              4         0              Normal
  06/05/2025 02 PM PDT            1.38              4         0              Normal
  06/05/2025 03 PM PDT            1.38              4         0              Normal
  06/05/2025 04 PM PDT            1.38              4         0              Normal
  06/05/2025 05 PM PDT            1.38              4         0              Normal
  06/05/2025 06 PM PDT            1.38              4         0              Normal
  06/05/2025 07 PM PDT            1.38              4         0              Normal
  06/05/2025 08 PM PDT            1.38              4         0              Normal
  06/05/2025 09 PM PDT            1.38              4         0              Normal
  06/05/2025 10 PM PDT            1.38              4         0              Normal
  06/05/2025 11 PM PDT            1.38              4         0              Normal
  06/06/2025 12 AM PDT            1.38              4         0              Normal
  06/06/2025 01 AM PDT            1.38              4         0              Normal
  06/06/2025 02 AM PDT            1.38              4         0              Normal
  06/06/2025 03 AM PDT            1.38              4         0              Normal
  06/06/2025 04 AM PDT            1.38              4         0              Normal
  06/06/2025 05 AM PDT            1.38              4         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.