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: Nov 28 2023 at 7:48 AM PSTNext Issuance: Nov 28 2023 at 3:00 PM PST
Monitor Stage: 16.0 FeetFlood Stage: 18.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Napa River - Saint Helena (SHEC1)
#
# File Generation Time:  11/28/2023 at 07:48 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/28/2023 at 07:00 AM PST
# Maximum Observed Stage:                       0.9 Feet
# Maximum Observed Flow:                        1 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/29/2023 at 02:00 PM PST
# Maximum Forecast Stage:                       1.1 Feet
# Maximum Forecast Flow:                        5 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  11/23/2023 07 AM PST             0.8              0                        Normal
  11/23/2023 08 AM PST             0.9              0         +              Normal
  11/23/2023 09 AM PST             0.8              0         -              Normal
  11/23/2023 10 AM PST             0.9              0         +              Normal
  11/23/2023 11 AM PST             0.9              0         0              Normal
  11/23/2023 12 PM PST             0.9              0         0              Normal
  11/23/2023 01 PM PST             0.9              0         0              Normal
  11/23/2023 02 PM PST             0.9              0         +              Normal
  11/23/2023 03 PM PST             0.9              0         0              Normal
  11/23/2023 04 PM PST             0.9              0         -              Normal
  11/23/2023 05 PM PST             0.9              0         +              Normal
  11/23/2023 06 PM PST             0.9              0         0              Normal
  11/23/2023 07 PM PST             0.9              0         +              Normal
  11/23/2023 08 PM PST             0.9              0         0              Normal
  11/23/2023 09 PM PST             0.9              0         0              Normal
  11/23/2023 10 PM PST             0.9              0         0              Normal
  11/23/2023 11 PM PST             0.9              0         -              Normal
  11/24/2023 12 AM PST             0.9              0         0              Normal
  11/24/2023 01 AM PST             0.9              0         0              Normal
  11/24/2023 02 AM PST             0.9              0         0              Normal
  11/24/2023 03 AM PST             0.9              0         0              Normal
  11/24/2023 04 AM PST             0.9              0         -              Normal
  11/24/2023 05 AM PST             0.9              0         0              Normal
  11/24/2023 06 AM PST             0.9              0         +              Normal
  11/24/2023 07 AM PST             0.9              0         -              Normal
  11/24/2023 08 AM PST             0.9              0         0              Normal
  11/24/2023 09 AM PST             0.9              0         0              Normal
  11/24/2023 10 AM PST             0.9              0         0              Normal
  11/24/2023 11 AM PST             0.9              0         0              Normal
  11/24/2023 12 PM PST             0.8              0         -              Normal
  11/24/2023 01 PM PST             0.9              0         +              Normal
  11/24/2023 02 PM PST             0.8              0         -              Normal
  11/24/2023 03 PM PST             0.9              0         +              Normal
  11/24/2023 04 PM PST             0.8              0         -              Normal
  11/24/2023 05 PM PST             0.8              0         0              Normal
  11/24/2023 06 PM PST             0.8              0         0              Normal
  11/24/2023 07 PM PST             0.8              0         0              Normal
  11/24/2023 08 PM PST             0.8              0         0              Normal
  11/24/2023 09 PM PST             0.8              0         0              Normal
  11/24/2023 10 PM PST             0.9              0         +              Normal
  11/24/2023 11 PM PST             0.8              0         -              Normal
  11/25/2023 12 AM PST             0.8              0         0              Normal
  11/25/2023 01 AM PST             0.8              0         0              Normal
  11/25/2023 02 AM PST             0.8              0         0              Normal
  11/25/2023 03 AM PST             0.8              0         0              Normal
  11/25/2023 04 AM PST             0.8              0         0              Normal
  11/25/2023 05 AM PST             0.8              0         -              Normal
  11/25/2023 06 AM PST             0.8              0         0              Normal
  11/25/2023 07 AM PST             0.8              0         0              Normal
  11/25/2023 08 AM PST             0.8              0         0              Normal
  11/25/2023 09 AM PST             0.8              0         0              Normal
  11/25/2023 10 AM PST             0.8              0         0              Normal
  11/25/2023 11 AM PST             0.8              0         0              Normal
  11/25/2023 12 PM PST             0.8              0         +              Normal
  11/25/2023 01 PM PST             0.8              0         -              Normal
  11/25/2023 02 PM PST             0.8              0         +              Normal
  11/25/2023 03 PM PST             0.8              0         -              Normal
  11/25/2023 04 PM PST             0.8              0         +              Normal
  11/25/2023 05 PM PST             0.8              0         -              Normal
  11/25/2023 06 PM PST             0.8              0         +              Normal
  11/25/2023 07 PM PST             0.8              0         -              Normal
  11/25/2023 08 PM PST             0.8              0         +              Normal
  11/25/2023 09 PM PST             0.8              0         0              Normal
  11/25/2023 10 PM PST             0.8              0         0              Normal
  11/25/2023 11 PM PST             0.8              0         -              Normal
  11/26/2023 12 AM PST             0.8              0         +              Normal
  11/26/2023 01 AM PST             0.8              0         0              Normal
  11/26/2023 02 AM PST             0.8              0         -              Normal
  11/26/2023 03 AM PST             0.8              0         +              Normal
  11/26/2023 04 AM PST             0.8              0         -              Normal
  11/26/2023 05 AM PST             0.8              0         0              Normal
  11/26/2023 06 AM PST             0.8              0         0              Normal
  11/26/2023 07 AM PST             0.8              0         0              Normal
  11/26/2023 08 AM PST             0.8              0         +              Normal
  11/26/2023 09 AM PST             0.8              0         0              Normal
  11/26/2023 10 AM PST             0.8              0         -              Normal
  11/26/2023 11 AM PST             0.8              0         +              Normal
  11/26/2023 12 PM PST             0.8              0         -              Normal
  11/26/2023 01 PM PST             0.8              0         +              Normal
  11/26/2023 02 PM PST             0.8              0         0              Normal
  11/26/2023 03 PM PST             0.8              0         0              Normal
  11/26/2023 04 PM PST             0.8              0         -              Normal
  11/26/2023 05 PM PST             0.8              0         +              Normal
  11/26/2023 06 PM PST             0.8              0         0              Normal
  11/26/2023 07 PM PST             0.8              0         0              Normal
  11/26/2023 08 PM PST             0.9              0         +              Normal
  11/26/2023 09 PM PST             0.9              0         0              Normal
  11/26/2023 10 PM PST             0.9              0         0              Normal
  11/26/2023 11 PM PST             0.9              0         +              Normal
  11/27/2023 12 AM PST             0.9              0         0              Normal
  11/27/2023 01 AM PST             0.9              0         0              Normal
  11/27/2023 02 AM PST             0.9              0         0              Normal
  11/27/2023 03 AM PST             0.9              0         0              Normal
  11/27/2023 04 AM PST             0.9              0         0              Normal
  11/27/2023 05 AM PST             0.9              0         +              Normal
  11/27/2023 06 AM PST             0.9              0         -              Normal
  11/27/2023 07 AM PST             0.9              0         +              Normal
  11/27/2023 08 AM PST             0.9              0         0              Normal
  11/27/2023 09 AM PST             0.9              0         0              Normal
  11/27/2023 10 AM PST             0.9              0         0              Normal
  11/27/2023 11 AM PST             0.9              0         0              Normal
  11/27/2023 12 PM PST             0.9              0         0              Normal
  11/27/2023 01 PM PST             0.9              0         0              Normal
  11/27/2023 02 PM PST             0.9              0         0              Normal
  11/27/2023 03 PM PST             0.9              0         +              Normal
  11/27/2023 04 PM PST             0.9              0         0              Normal
  11/27/2023 05 PM PST             0.9              0         -              Normal
  11/27/2023 06 PM PST             0.9              0         +              Normal
  11/27/2023 07 PM PST             0.9              0         0              Normal
  11/27/2023 08 PM PST             0.9              0         0              Normal
  11/27/2023 09 PM PST             0.9              0         0              Normal
  11/27/2023 10 PM PST             0.9              1         +              Normal
  11/27/2023 11 PM PST             0.9              0         -              Normal
  11/28/2023 12 AM PST             0.9              0         0              Normal
  11/28/2023 01 AM PST             0.9              0         0              Normal
  11/28/2023 02 AM PST             0.9              0         0              Normal
  11/28/2023 03 AM PST             0.9              1         +              Normal
  11/28/2023 04 AM PST             0.9              1         0              Normal
  11/28/2023 05 AM PST             0.9              1         0              Normal
  11/28/2023 06 AM PST             0.9              1         0              Normal
  11/28/2023 07 AM PST             0.9              1         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/28/2023 08 AM PST             0.9              1                        Normal
  11/28/2023 09 AM PST             0.9              1         0              Normal
  11/28/2023 10 AM PST             0.9              1         0              Normal
  11/28/2023 11 AM PST             0.9              1         0              Normal
  11/28/2023 12 PM PST             0.9              1         0              Normal
  11/28/2023 01 PM PST             0.9              1         0              Normal
  11/28/2023 02 PM PST             0.9              1         0              Normal
  11/28/2023 03 PM PST             0.9              1         0              Normal
  11/28/2023 04 PM PST             0.9              1         0              Normal
  11/28/2023 05 PM PST             0.9              1         0              Normal
  11/28/2023 06 PM PST             0.9              1         0              Normal
  11/28/2023 07 PM PST             0.9              1         0              Normal
  11/28/2023 08 PM PST             0.9              1         0              Normal
  11/28/2023 09 PM PST             0.9              0         -              Normal
  11/28/2023 10 PM PST             0.9              0         0              Normal
  11/28/2023 11 PM PST             0.9              0         0              Normal
  11/29/2023 12 AM PST             0.9              0         0              Normal
  11/29/2023 01 AM PST             0.9              0         0              Normal
  11/29/2023 02 AM PST             0.9              0         0              Normal
  11/29/2023 03 AM PST             0.9              1         +              Normal
  11/29/2023 04 AM PST             0.9              1         +              Normal
  11/29/2023 05 AM PST             0.9              1         +              Normal
  11/29/2023 06 AM PST             0.9              1         +              Normal
  11/29/2023 07 AM PST             1.0              1         +              Normal
  11/29/2023 08 AM PST             1.0              2         +              Normal
  11/29/2023 09 AM PST             1.0              3         +              Normal
  11/29/2023 10 AM PST             1.0              3         +              Normal
  11/29/2023 11 AM PST             1.1              4         +              Normal
  11/29/2023 12 PM PST             1.1              4         +              Normal
  11/29/2023 01 PM PST             1.1              4         0              Normal
  11/29/2023 02 PM PST             1.1              5         +              Normal
  11/29/2023 03 PM PST             1.1              5         0              Normal
  11/29/2023 04 PM PST             1.1              5         0              Normal
  11/29/2023 05 PM PST             1.1              5         0              Normal
  11/29/2023 06 PM PST             1.1              4         -              Normal
  11/29/2023 07 PM PST             1.1              4         0              Normal
  11/29/2023 08 PM PST             1.1              4         -              Normal
  11/29/2023 09 PM PST             1.1              4         -              Normal
  11/29/2023 10 PM PST             1.0              3         -              Normal
  11/29/2023 11 PM PST             1.0              3         -              Normal
  11/30/2023 12 AM PST             1.0              2         -              Normal
  11/30/2023 01 AM PST             1.0              2         -              Normal
  11/30/2023 02 AM PST             1.0              2         -              Normal
  11/30/2023 03 AM PST             1.0              2         -              Normal
  11/30/2023 04 AM PST             1.0              2         -              Normal
  11/30/2023 05 AM PST             1.0              1         -              Normal
  11/30/2023 06 AM PST             1.0              1         0              Normal
  11/30/2023 07 AM PST             0.9              1         -              Normal
  11/30/2023 08 AM PST             0.9              1         -              Normal
  11/30/2023 09 AM PST             0.9              1         0              Normal
  11/30/2023 10 AM PST             0.9              1         -              Normal
  11/30/2023 11 AM PST             0.9              1         0              Normal
  11/30/2023 12 PM PST             0.9              1         0              Normal
  11/30/2023 01 PM PST             0.9              1         -              Normal
  11/30/2023 02 PM PST             0.9              1         0              Normal
  11/30/2023 03 PM PST             0.9              1         0              Normal
  11/30/2023 04 PM PST             0.9              1         0              Normal
  11/30/2023 05 PM PST             0.9              1         0              Normal
  11/30/2023 06 PM PST             0.9              1         -              Normal
  11/30/2023 07 PM PST             0.9              1         0              Normal
  11/30/2023 08 PM PST             0.9              1         0              Normal
  11/30/2023 09 PM PST             0.9              1         0              Normal
  11/30/2023 10 PM PST             0.9              1         0              Normal
  11/30/2023 11 PM PST             0.9              1         0              Normal
  12/01/2023 12 AM PST             0.9              1         0              Normal
  12/01/2023 01 AM PST             0.9              1         0              Normal
  12/01/2023 02 AM PST             0.9              1         0              Normal
  12/01/2023 03 AM PST             0.9              1         0              Normal
  12/01/2023 04 AM PST             0.9              1         0              Normal
  12/01/2023 05 AM PST             0.9              1         0              Normal
  12/01/2023 06 AM PST             0.9              1         0              Normal
  12/01/2023 07 AM PST             0.9              1         0              Normal
  12/01/2023 08 AM PST             0.9              1         0              Normal
  12/01/2023 09 AM PST             0.9              1         0              Normal
  12/01/2023 10 AM PST             0.9              1         0              Normal
  12/01/2023 11 AM PST             0.9              1         0              Normal
  12/01/2023 12 PM PST             0.9              1         0              Normal
  12/01/2023 01 PM PST             0.9              1         0              Normal
  12/01/2023 02 PM PST             0.9              1         0              Normal
  12/01/2023 03 PM PST             0.9              1         0              Normal
  12/01/2023 04 PM PST             0.9              1         -              Normal
  12/01/2023 05 PM PST             0.9              1         0              Normal
  12/01/2023 06 PM PST             0.9              1         0              Normal
  12/01/2023 07 PM PST             0.9              1         0              Normal
  12/01/2023 08 PM PST             0.9              1         0              Normal
  12/01/2023 09 PM PST             0.9              1         0              Normal
  12/01/2023 10 PM PST             0.9              1         0              Normal
  12/01/2023 11 PM PST             0.9              1         0              Normal
  12/02/2023 12 AM PST             0.9              1         +              Normal
  12/02/2023 01 AM PST             0.9              1         0              Normal
  12/02/2023 02 AM PST             0.9              1         0              Normal
  12/02/2023 03 AM PST             0.9              1         +              Normal
  12/02/2023 04 AM PST             0.9              1         0              Normal
  12/02/2023 05 AM PST             0.9              1         +              Normal
  12/02/2023 06 AM PST             0.9              1         0              Normal
  12/02/2023 07 AM PST             0.9              1         0              Normal
  12/02/2023 08 AM PST             0.9              1         +              Normal
  12/02/2023 09 AM PST             0.9              1         0              Normal
  12/02/2023 10 AM PST             0.9              1         0              Normal
  12/02/2023 11 AM PST             0.9              1         0              Normal
  12/02/2023 12 PM PST             0.9              1         0              Normal
  12/02/2023 01 PM PST             0.9              1         0              Normal
  12/02/2023 02 PM PST             0.9              1         0              Normal
  12/02/2023 03 PM PST             0.9              1         -              Normal
  12/02/2023 04 PM PST             0.9              1         0              Normal
  12/02/2023 05 PM PST             0.9              1         0              Normal
  12/02/2023 06 PM PST             0.9              1         -              Normal
  12/02/2023 07 PM PST             0.9              1         0              Normal
  12/02/2023 08 PM PST             0.9              1         0              Normal
  12/02/2023 09 PM PST             0.9              1         -              Normal
  12/02/2023 10 PM PST             0.9              1         0              Normal
  12/02/2023 11 PM PST             0.9              1         0              Normal
  12/03/2023 12 AM PST             0.9              1         0              Normal
  12/03/2023 01 AM PST             0.9              1         -              Normal
  12/03/2023 02 AM PST             0.9              1         0              Normal
  12/03/2023 03 AM PST             0.9              1         0              Normal
  12/03/2023 04 AM PST             0.9              1         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.