National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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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: Sep 28 2023 at 7:42 AM PDTNext Issuance: Sep 29 2023 at 9:00 AM PDT
Monitor Stage: 16.0 FeetFlood Stage: 18.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Napa River - Saint Helena (SHEC1)
#
# File Generation Time:  09/28/2023 at 07:42 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  09/28/2023 at 07:00 AM PDT
# Maximum Observed Stage:                       0.8 Feet
# Maximum Observed Flow:                        0 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/01/2023 at 12:00 AM PDT
# Maximum Forecast Stage:                       0.8 Feet
# Maximum Forecast Flow:                        0 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  09/23/2023 07 AM PDT             0.8              0                        Normal
  09/23/2023 08 AM PDT             0.8              0         0              Normal
  09/23/2023 09 AM PDT             0.8              0         0              Normal
  09/23/2023 10 AM PDT             0.8              0         0              Normal
  09/23/2023 11 AM PDT             0.8              0         0              Normal
  09/23/2023 12 PM PDT             0.8              0         0              Normal
  09/23/2023 01 PM PDT             0.8              0         0              Normal
  09/23/2023 02 PM PDT             0.8              0         0              Normal
  09/23/2023 03 PM PDT             0.8              0         0              Normal
  09/23/2023 04 PM PDT             0.8              0         0              Normal
  09/23/2023 05 PM PDT             0.8              0         0              Normal
  09/23/2023 06 PM PDT             0.8              0         0              Normal
  09/23/2023 07 PM PDT             0.8              0         0              Normal
  09/23/2023 08 PM PDT             0.8              0         0              Normal
  09/23/2023 09 PM PDT             0.8              0         0              Normal
  09/23/2023 10 PM PDT             0.8              0         0              Normal
  09/23/2023 11 PM PDT             0.8              0         0              Normal
  09/24/2023 12 AM PDT             0.8              0         0              Normal
  09/24/2023 01 AM PDT             0.8              0         0              Normal
  09/24/2023 02 AM PDT             0.8              0         0              Normal
  09/24/2023 03 AM PDT             0.8              0         0              Normal
  09/24/2023 04 AM PDT             0.8              0         0              Normal
  09/24/2023 05 AM PDT             0.8              0         0              Normal
  09/24/2023 06 AM PDT             0.8              0         0              Normal
  09/24/2023 07 AM PDT             0.8              0         0              Normal
  09/24/2023 08 AM PDT             0.8              0         0              Normal
  09/24/2023 09 AM PDT             0.8              0         0              Normal
  09/24/2023 10 AM PDT             0.8              0         0              Normal
  09/24/2023 11 AM PDT             0.8              0         0              Normal
  09/24/2023 12 PM PDT             0.8              0         0              Normal
  09/24/2023 01 PM PDT             0.8              0         0              Normal
  09/24/2023 02 PM PDT             0.8              0         0              Normal
  09/24/2023 03 PM PDT             0.8              0         0              Normal
  09/24/2023 04 PM PDT             0.8              0         0              Normal
  09/24/2023 05 PM PDT             0.8              0         0              Normal
  09/24/2023 06 PM PDT             0.8              0         0              Normal
  09/24/2023 07 PM PDT             0.8              0         0              Normal
  09/24/2023 08 PM PDT             0.8              0         0              Normal
  09/24/2023 09 PM PDT             0.8              0         0              Normal
  09/24/2023 10 PM PDT             0.8              0         0              Normal
  09/24/2023 11 PM PDT             0.8              0         0              Normal
  09/25/2023 12 AM PDT             0.8              0         0              Normal
  09/25/2023 01 AM PDT             0.8              0         0              Normal
  09/25/2023 02 AM PDT             0.8              0         0              Normal
  09/25/2023 03 AM PDT             0.8              0         0              Normal
  09/25/2023 04 AM PDT             0.8              0         0              Normal
  09/25/2023 05 AM PDT             0.8              0         0              Normal
  09/25/2023 06 AM PDT             0.8              0         0              Normal
  09/25/2023 07 AM PDT             0.8              0         0              Normal
  09/25/2023 08 AM PDT             0.8              0         0              Normal
  09/25/2023 09 AM PDT             0.8              0         0              Normal
  09/25/2023 10 AM PDT             0.8              0         0              Normal
  09/25/2023 11 AM PDT             0.8              0         0              Normal
  09/25/2023 12 PM PDT             0.8              0         0              Normal
  09/25/2023 01 PM PDT             0.8              0         0              Normal
  09/25/2023 02 PM PDT             0.8              0         0              Normal
  09/25/2023 03 PM PDT             0.8              0         0              Normal
  09/25/2023 04 PM PDT             0.8              0         0              Normal
  09/25/2023 05 PM PDT             0.8              0         0              Normal
  09/25/2023 06 PM PDT             0.8              0         0              Normal
  09/25/2023 07 PM PDT             0.8              0         0              Normal
  09/25/2023 08 PM PDT             0.8              0         0              Normal
  09/25/2023 09 PM PDT             0.8              0         0              Normal
  09/25/2023 10 PM PDT             0.8              0         0              Normal
  09/25/2023 11 PM PDT             0.8              0         0              Normal
  09/26/2023 12 AM PDT             0.8              0         0              Normal
  09/26/2023 01 AM PDT             0.8              0         0              Normal
  09/26/2023 02 AM PDT             0.8              0         0              Normal
  09/26/2023 03 AM PDT             0.8              0         0              Normal
  09/26/2023 04 AM PDT             0.8              0         0              Normal
  09/26/2023 05 AM PDT             0.8              0         0              Normal
  09/26/2023 06 AM PDT             0.8              0         0              Normal
  09/26/2023 07 AM PDT             0.8              0         0              Normal
  09/26/2023 08 AM PDT             0.8              0         0              Normal
  09/26/2023 09 AM PDT             0.8              0         0              Normal
  09/26/2023 10 AM PDT             0.8              0         0              Normal
  09/26/2023 11 AM PDT             0.8              0         0              Normal
  09/26/2023 12 PM PDT             0.8              0         0              Normal
  09/26/2023 01 PM PDT             0.8              0         0              Normal
  09/26/2023 02 PM PDT             0.8              0         0              Normal
  09/26/2023 03 PM PDT             0.8              0         0              Normal
  09/26/2023 04 PM PDT             0.8              0         0              Normal
  09/26/2023 05 PM PDT             0.8              0         0              Normal
  09/26/2023 06 PM PDT             0.8              0         0              Normal
  09/26/2023 07 PM PDT             0.8              0         0              Normal
  09/26/2023 08 PM PDT             0.8              0         0              Normal
  09/26/2023 09 PM PDT             0.8              0         0              Normal
  09/26/2023 10 PM PDT             0.8              0         0              Normal
  09/26/2023 11 PM PDT             0.8              0         0              Normal
  09/27/2023 12 AM PDT             0.8              0         0              Normal
  09/27/2023 01 AM PDT             0.8              0         0              Normal
  09/27/2023 02 AM PDT             0.8              0         0              Normal
  09/27/2023 03 AM PDT             0.8              0         0              Normal
  09/27/2023 04 AM PDT             0.8              0         0              Normal
  09/27/2023 05 AM PDT             0.8              0         0              Normal
  09/27/2023 06 AM PDT             0.8              0         0              Normal
  09/27/2023 07 AM PDT             0.8              0         0              Normal
  09/27/2023 08 AM PDT             0.8              0         0              Normal
  09/27/2023 09 AM PDT             0.8              0         0              Normal
  09/27/2023 10 AM PDT             0.8              0         0              Normal
  09/27/2023 11 AM PDT             0.8              0         0              Normal
  09/27/2023 12 PM PDT             0.8              0         0              Normal
  09/27/2023 01 PM PDT             0.8              0         0              Normal
  09/27/2023 02 PM PDT             0.8              0         0              Normal
  09/27/2023 03 PM PDT             0.8              0         0              Normal
  09/27/2023 04 PM PDT             0.8              0         0              Normal
  09/27/2023 05 PM PDT             0.8              0         0              Normal
  09/27/2023 06 PM PDT             0.8              0         0              Normal
  09/27/2023 07 PM PDT             0.8              0         0              Normal
  09/27/2023 08 PM PDT             0.8              0         0              Normal
  09/27/2023 09 PM PDT             0.8              0         0              Normal
  09/27/2023 10 PM PDT             0.8              0         0              Normal
  09/27/2023 11 PM PDT             0.8              0         0              Normal
  09/28/2023 12 AM PDT             0.8              0         0              Normal
  09/28/2023 01 AM PDT             0.8              0         0              Normal
  09/28/2023 02 AM PDT             0.8              0         0              Normal
  09/28/2023 03 AM PDT             0.8              0         0              Normal
  09/28/2023 04 AM PDT             0.8              0         0              Normal
  09/28/2023 05 AM PDT             0.8              0         0              Normal
  09/28/2023 06 AM PDT             0.8              0         0              Normal
  09/28/2023 07 AM PDT             0.8              0         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  09/28/2023 08 AM PDT             0.8              0                        Normal
  09/28/2023 09 AM PDT             0.8              0         0              Normal
  09/28/2023 10 AM PDT             0.8              0         0              Normal
  09/28/2023 11 AM PDT             0.8              0         0              Normal
  09/28/2023 12 PM PDT             0.8              0         0              Normal
  09/28/2023 01 PM PDT             0.8              0         0              Normal
  09/28/2023 02 PM PDT             0.8              0         0              Normal
  09/28/2023 03 PM PDT             0.8              0         0              Normal
  09/28/2023 04 PM PDT             0.8              0         0              Normal
  09/28/2023 05 PM PDT             0.8              0         0              Normal
  09/28/2023 06 PM PDT             0.8              0         0              Normal
  09/28/2023 07 PM PDT             0.8              0         0              Normal
  09/28/2023 08 PM PDT             0.8              0         0              Normal
  09/28/2023 09 PM PDT             0.8              0         0              Normal
  09/28/2023 10 PM PDT             0.8              0         0              Normal
  09/28/2023 11 PM PDT             0.8              0         0              Normal
  09/29/2023 12 AM PDT             0.8              0         0              Normal
  09/29/2023 01 AM PDT             0.8              0         0              Normal
  09/29/2023 02 AM PDT             0.8              0         0              Normal
  09/29/2023 03 AM PDT             0.8              0         0              Normal
  09/29/2023 04 AM PDT             0.8              0         0              Normal
  09/29/2023 05 AM PDT             0.8              0         0              Normal
  09/29/2023 06 AM PDT             0.8              0         0              Normal
  09/29/2023 07 AM PDT             0.8              0         0              Normal
  09/29/2023 08 AM PDT             0.8              0         0              Normal
  09/29/2023 09 AM PDT             0.8              0         0              Normal
  09/29/2023 10 AM PDT             0.8              0         0              Normal
  09/29/2023 11 AM PDT             0.8              0         0              Normal
  09/29/2023 12 PM PDT             0.8              0         0              Normal
  09/29/2023 01 PM PDT             0.8              0         0              Normal
  09/29/2023 02 PM PDT             0.8              0         0              Normal
  09/29/2023 03 PM PDT             0.8              0         0              Normal
  09/29/2023 04 PM PDT             0.8              0         0              Normal
  09/29/2023 05 PM PDT             0.8              0         0              Normal
  09/29/2023 06 PM PDT             0.8              0         0              Normal
  09/29/2023 07 PM PDT             0.8              0         0              Normal
  09/29/2023 08 PM PDT             0.8              0         0              Normal
  09/29/2023 09 PM PDT             0.8              0         0              Normal
  09/29/2023 10 PM PDT             0.8              0         0              Normal
  09/29/2023 11 PM PDT             0.8              0         0              Normal
  09/30/2023 12 AM PDT             0.8              0         0              Normal
  09/30/2023 01 AM PDT             0.8              0         0              Normal
  09/30/2023 02 AM PDT             0.8              0         0              Normal
  09/30/2023 03 AM PDT             0.8              0         0              Normal
  09/30/2023 04 AM PDT             0.8              0         0              Normal
  09/30/2023 05 AM PDT             0.8              0         0              Normal
  09/30/2023 06 AM PDT             0.8              0         0              Normal
  09/30/2023 07 AM PDT             0.8              0         0              Normal
  09/30/2023 08 AM PDT             0.8              0         0              Normal
  09/30/2023 09 AM PDT             0.8              0         0              Normal
  09/30/2023 10 AM PDT             0.8              0         0              Normal
  09/30/2023 11 AM PDT             0.8              0         0              Normal
  09/30/2023 12 PM PDT             0.8              0         0              Normal
  09/30/2023 01 PM PDT             0.8              0         0              Normal
  09/30/2023 02 PM PDT             0.8              0         0              Normal
  09/30/2023 03 PM PDT             0.8              0         0              Normal
  09/30/2023 04 PM PDT             0.8              0         0              Normal
  09/30/2023 05 PM PDT             0.8              0         +              Normal
  09/30/2023 06 PM PDT             0.8              0         0              Normal
  09/30/2023 07 PM PDT             0.8              0         +              Normal
  09/30/2023 08 PM PDT             0.8              0         0              Normal
  09/30/2023 09 PM PDT             0.8              0         +              Normal
  09/30/2023 10 PM PDT             0.8              0         +              Normal
  09/30/2023 11 PM PDT             0.8              0         0              Normal
  10/01/2023 12 AM PDT             0.8              0         +              Normal
  10/01/2023 01 AM PDT             0.8              0         0              Normal
  10/01/2023 02 AM PDT             0.8              0         0              Normal
  10/01/2023 03 AM PDT             0.8              0         0              Normal
  10/01/2023 04 AM PDT             0.8              0         0              Normal
  10/01/2023 05 AM PDT             0.8              0         0              Normal
  10/01/2023 06 AM PDT             0.8              0         -              Normal
  10/01/2023 07 AM PDT             0.8              0         0              Normal
  10/01/2023 08 AM PDT             0.8              0         -              Normal
  10/01/2023 09 AM PDT             0.8              0         0              Normal
  10/01/2023 10 AM PDT             0.8              0         -              Normal
  10/01/2023 11 AM PDT             0.8              0         0              Normal
  10/01/2023 12 PM PDT             0.8              0         -              Normal
  10/01/2023 01 PM PDT             0.8              0         0              Normal
  10/01/2023 02 PM PDT             0.8              0         0              Normal
  10/01/2023 03 PM PDT             0.8              0         0              Normal
  10/01/2023 04 PM PDT             0.8              0         -              Normal
  10/01/2023 05 PM PDT             0.8              0         -              Normal
  10/01/2023 06 PM PDT             0.8              0         0              Normal
  10/01/2023 07 PM PDT             0.8              0         0              Normal
  10/01/2023 08 PM PDT             0.8              0         0              Normal
  10/01/2023 09 PM PDT             0.8              0         0              Normal
  10/01/2023 10 PM PDT             0.8              0         0              Normal
  10/01/2023 11 PM PDT             0.8              0         0              Normal
  10/02/2023 12 AM PDT             0.8              0         -              Normal
  10/02/2023 01 AM PDT             0.8              0         0              Normal
  10/02/2023 02 AM PDT             0.8              0         0              Normal
  10/02/2023 03 AM PDT             0.8              0         0              Normal
  10/02/2023 04 AM PDT             0.8              0         0              Normal
  10/02/2023 05 AM PDT             0.8              0         0              Normal
  10/02/2023 06 AM PDT             0.8              0         0              Normal
  10/02/2023 07 AM PDT             0.8              0         0              Normal
  10/02/2023 08 AM PDT             0.8              0         0              Normal
  10/02/2023 09 AM PDT             0.8              0         0              Normal
  10/02/2023 10 AM PDT             0.8              0         0              Normal
  10/02/2023 11 AM PDT             0.8              0         0              Normal
  10/02/2023 12 PM PDT             0.8              0         0              Normal
  10/02/2023 01 PM PDT             0.8              0         0              Normal
  10/02/2023 02 PM PDT             0.8              0         0              Normal
  10/02/2023 03 PM PDT             0.8              0         0              Normal
  10/02/2023 04 PM PDT             0.8              0         0              Normal
  10/02/2023 05 PM PDT             0.8              0         0              Normal
  10/02/2023 06 PM PDT             0.8              0         0              Normal
  10/02/2023 07 PM PDT             0.8              0         0              Normal
  10/02/2023 08 PM PDT             0.8              0         0              Normal
  10/02/2023 09 PM PDT             0.8              0         0              Normal
  10/02/2023 10 PM PDT             0.8              0         0              Normal
  10/02/2023 11 PM PDT             0.8              0         0              Normal
  10/03/2023 12 AM PDT             0.8              0         0              Normal
  10/03/2023 01 AM PDT             0.8              0         0              Normal
  10/03/2023 02 AM PDT             0.8              0         0              Normal
  10/03/2023 03 AM PDT             0.8              0         0              Normal
  10/03/2023 04 AM PDT             0.8              0         0              Normal
  10/03/2023 05 AM PDT             0.8              0         0              Normal
#
# NOTE 1: Stages are rounded to the nearest tenth (.1) 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.