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

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SAN JOAQUIN RIVER - VERNALIS (VNSC1)
Latitude: 37.68º NLongitude: 121.27º WElevation: 35 Feet
Location: San Joaquin County in CaliforniaRiver Group: San Joaquin
Issuance Time: Sep 23 2021 at 7:40 AM PDTNext Issuance: Sep 24 2021 at 9:00 AM PDT
Monitor Stage: 24.5 FeetFlood Stage: 29.0 FeetDanger Stage: 29.5 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Joaquin River - Vernalis (VNSC1)
#
# File Generation Time:  09/23/2021 at 07:40 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  09/19/2021 at 11:00 AM PDT
# Maximum Observed Stage:                       7.7 Feet
# Maximum Observed Flow:                        537 cfs
#
# Earliest Date & Time of Maximum Forecast:     09/23/2021 at 08:00 AM PDT
# Maximum Forecast Stage:                       7.3 Feet
# Maximum Forecast Flow:                        379 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  09/18/2021 07 AM PDT             7.6            480                        Normal
  09/18/2021 08 AM PDT             7.6            480         0              Normal
  09/18/2021 09 AM PDT             7.6            480         0              Normal
  09/18/2021 10 AM PDT             7.6            476         -              Normal
  09/18/2021 11 AM PDT             7.6            476         0              Normal
  09/18/2021 12 PM PDT             7.6            480         +              Normal
  09/18/2021 01 PM PDT             7.6            476         -              Normal
  09/18/2021 02 PM PDT             7.6            476         0              Normal
  09/18/2021 03 PM PDT             7.6            476         0              Normal
  09/18/2021 04 PM PDT             7.6            476         0              Normal
  09/18/2021 05 PM PDT             7.6            472         -              Normal
  09/18/2021 06 PM PDT             7.6            472         0              Normal
  09/18/2021 07 PM PDT             7.6            476         +              Normal
  09/18/2021 08 PM PDT             7.6            476         0              Normal
  09/18/2021 09 PM PDT             7.6            484         +              Normal
  09/18/2021 10 PM PDT             7.6            492         +              Normal
  09/18/2021 11 PM PDT             7.6            500         +              Normal
  09/19/2021 12 AM PDT             7.7            508         +              Normal
  09/19/2021 01 AM PDT             7.7            512         +              Normal
  09/19/2021 02 AM PDT             7.7            516         +              Normal
  09/19/2021 03 AM PDT             7.7            520         +              Normal
  09/19/2021 04 AM PDT             7.7            520         0              Normal
  09/19/2021 05 AM PDT             7.7            525         +              Normal
  09/19/2021 06 AM PDT             7.7            525         0              Normal
  09/19/2021 07 AM PDT             7.7            529         +              Normal
  09/19/2021 08 AM PDT             7.7            529         0              Normal
  09/19/2021 09 AM PDT             7.7            533         +              Normal
  09/19/2021 10 AM PDT             7.7            533         0              Normal
  09/19/2021 11 AM PDT             7.7            537         +              Normal
  09/19/2021 12 PM PDT             7.7            529         -              Normal
  09/19/2021 01 PM PDT             7.7            533         +              Normal
  09/19/2021 02 PM PDT             7.7            529         -              Normal
  09/19/2021 03 PM PDT             7.7            529         0              Normal
  09/19/2021 04 PM PDT             7.7            525         -              Normal
  09/19/2021 05 PM PDT             7.7            525         0              Normal
  09/19/2021 06 PM PDT             7.7            525         0              Normal
  09/19/2021 07 PM PDT             7.7            525         0              Normal
  09/19/2021 08 PM PDT             7.7            525         0              Normal
  09/19/2021 09 PM PDT             7.7            525         0              Normal
  09/19/2021 10 PM PDT             7.7            525         0              Normal
  09/19/2021 11 PM PDT             7.7            525         0              Normal
  09/20/2021 12 AM PDT             7.7            529         +              Normal
  09/20/2021 01 AM PDT             7.7            529         0              Normal
  09/20/2021 02 AM PDT             7.7            529         0              Normal
  09/20/2021 03 AM PDT             7.7            529         0              Normal
  09/20/2021 04 AM PDT             7.7            533         +              Normal
  09/20/2021 05 AM PDT             7.7            533         0              Normal
  09/20/2021 06 AM PDT             7.7            533         0              Normal
  09/20/2021 07 AM PDT             7.7            533         0              Normal
  09/20/2021 08 AM PDT             7.7            533         0              Normal
  09/20/2021 09 AM PDT             7.7            529         -              Normal
  09/20/2021 10 AM PDT             7.7            525         -              Normal
  09/20/2021 11 AM PDT             7.7            520         -              Normal
  09/20/2021 12 PM PDT             7.7            516         -              Normal
  09/20/2021 01 PM PDT             7.7            508         -              Normal
  09/20/2021 02 PM PDT             7.6            500         -              Normal
  09/20/2021 03 PM PDT             7.6            496         -              Normal
  09/20/2021 04 PM PDT             7.6            488         -              Normal
  09/20/2021 05 PM PDT             7.6            484         -              Normal
  09/20/2021 06 PM PDT             7.6            476         -              Normal
  09/20/2021 07 PM PDT             7.6            472         -              Normal
  09/20/2021 08 PM PDT             7.5            465         -              Normal
  09/20/2021 09 PM PDT             7.5            461         -              Normal
  09/20/2021 10 PM PDT             7.5            457         -              Normal
  09/20/2021 11 PM PDT             7.5            453         -              Normal
  09/21/2021 12 AM PDT             7.5            453         0              Normal
  09/21/2021 01 AM PDT             7.5            449         -              Normal
  09/21/2021 02 AM PDT             7.5            449         0              Normal
  09/21/2021 03 AM PDT             7.5            449         0              Normal
  09/21/2021 04 AM PDT             7.5            449         0              Normal
  09/21/2021 05 AM PDT             7.5            449         0              Normal
  09/21/2021 06 AM PDT             7.5            453         +              Normal
  09/21/2021 07 AM PDT             7.5            453         0              Normal
  09/21/2021 08 AM PDT             7.5            457         +              Normal
  09/21/2021 09 AM PDT             7.5            457         0              Normal
  09/21/2021 10 AM PDT             7.5            457         0              Normal
  09/21/2021 11 AM PDT             7.5            453         -              Normal
  09/21/2021 12 PM PDT             7.5            449         -              Normal
  09/21/2021 01 PM PDT             7.5            445         -              Normal
  09/21/2021 02 PM PDT             7.5            438         -              Normal
  09/21/2021 03 PM PDT             7.5            430         -              Normal
  09/21/2021 04 PM PDT             7.4            426         -              Normal
  09/21/2021 05 PM PDT             7.4            419         -              Normal
  09/21/2021 06 PM PDT             7.4            415         -              Normal
  09/21/2021 07 PM PDT             7.4            408         -              Normal
  09/21/2021 08 PM PDT             7.4            408         0              Normal
  09/21/2021 09 PM PDT             7.4            404         -              Normal
  09/21/2021 10 PM PDT             7.4            408         +              Normal
  09/21/2021 11 PM PDT             7.4            408         0              Normal
  09/22/2021 12 AM PDT             7.4            411         +              Normal
  09/22/2021 01 AM PDT             7.4            411         0              Normal
  09/22/2021 02 AM PDT             7.4            419         +              Normal
  09/22/2021 03 AM PDT             7.4            423         +              Normal
  09/22/2021 04 AM PDT             7.4            426         +              Normal
  09/22/2021 05 AM PDT             7.5            434         +              Normal
  09/22/2021 06 AM PDT             7.5            438         +              Normal
  09/22/2021 07 AM PDT             7.5            441         +              Normal
  09/22/2021 08 AM PDT             7.5            445         +              Normal
  09/22/2021 09 AM PDT             7.5            445         0              Normal
  09/22/2021 10 AM PDT             7.5            445         0              Normal
  09/22/2021 11 AM PDT             7.5            441         -              Normal
  09/22/2021 12 PM PDT             7.5            441         0              Normal
  09/22/2021 01 PM PDT             7.5            434         -              Normal
  09/22/2021 02 PM PDT             7.5            430         -              Normal
  09/22/2021 03 PM PDT             7.4            426         -              Normal
  09/22/2021 04 PM PDT             7.4            426         0              Normal
  09/22/2021 05 PM PDT             7.4            423         -              Normal
  09/22/2021 06 PM PDT             7.4            419         -              Normal
  09/22/2021 07 PM PDT             7.4            415         -              Normal
  09/22/2021 08 PM PDT             7.4            408         -              Normal
  09/22/2021 09 PM PDT             7.4            404         -              Normal
  09/22/2021 10 PM PDT             7.4            400         -              Normal
  09/22/2021 11 PM PDT             7.4            397         -              Normal
  09/23/2021 12 AM PDT             7.4            397         0              Normal
  09/23/2021 01 AM PDT             7.4            397         0              Normal
  09/23/2021 02 AM PDT             7.3            393         -              Normal
  09/23/2021 03 AM PDT             7.3            390         -              Normal
  09/23/2021 04 AM PDT             7.3            382         -              Normal
  09/23/2021 05 AM PDT             7.3            379         -              Normal
  09/23/2021 06 AM PDT             7.3            379         0              Normal
  09/23/2021 07 AM PDT             7.3            379         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  09/23/2021 08 AM PDT             7.3            379                        Normal
  09/23/2021 09 AM PDT             7.3            379         0              Normal
  09/23/2021 10 AM PDT             7.3            379         0              Normal
  09/23/2021 11 AM PDT             7.3            379         0              Normal
  09/23/2021 12 PM PDT             7.3            375         -              Normal
  09/23/2021 01 PM PDT             7.3            375         0              Normal
  09/23/2021 02 PM PDT             7.3            375         0              Normal
  09/23/2021 03 PM PDT             7.3            375         0              Normal
  09/23/2021 04 PM PDT             7.3            375         0              Normal
  09/23/2021 05 PM PDT             7.3            375         0              Normal
  09/23/2021 06 PM PDT             7.3            375         0              Normal
  09/23/2021 07 PM PDT             7.3            375         0              Normal
  09/23/2021 08 PM PDT             7.3            372         -              Normal
  09/23/2021 09 PM PDT             7.3            372         0              Normal
  09/23/2021 10 PM PDT             7.3            372         0              Normal
  09/23/2021 11 PM PDT             7.3            372         0              Normal
  09/24/2021 12 AM PDT             7.3            372         0              Normal
  09/24/2021 01 AM PDT             7.3            372         0              Normal
  09/24/2021 02 AM PDT             7.3            368         -              Normal
  09/24/2021 03 AM PDT             7.3            368         0              Normal
  09/24/2021 04 AM PDT             7.3            368         0              Normal
  09/24/2021 05 AM PDT             7.3            368         0              Normal
  09/24/2021 06 AM PDT             7.3            368         0              Normal
  09/24/2021 07 AM PDT             7.3            368         0              Normal
  09/24/2021 08 AM PDT             7.3            368         0              Normal
  09/24/2021 09 AM PDT             7.3            365         -              Normal
  09/24/2021 10 AM PDT             7.3            365         0              Normal
  09/24/2021 11 AM PDT             7.3            365         0              Normal
  09/24/2021 12 PM PDT             7.3            365         0              Normal
  09/24/2021 01 PM PDT             7.3            365         0              Normal
  09/24/2021 02 PM PDT             7.3            365         0              Normal
  09/24/2021 03 PM PDT             7.3            365         0              Normal
  09/24/2021 04 PM PDT             7.3            365         0              Normal
  09/24/2021 05 PM PDT             7.3            365         0              Normal
  09/24/2021 06 PM PDT             7.3            361         -              Normal
  09/24/2021 07 PM PDT             7.3            361         0              Normal
  09/24/2021 08 PM PDT             7.3            361         0              Normal
  09/24/2021 09 PM PDT             7.3            361         0              Normal
  09/24/2021 10 PM PDT             7.3            361         0              Normal
  09/24/2021 11 PM PDT             7.3            361         0              Normal
  09/25/2021 12 AM PDT             7.3            361         0              Normal
  09/25/2021 01 AM PDT             7.3            361         0              Normal
  09/25/2021 02 AM PDT             7.3            361         0              Normal
  09/25/2021 03 AM PDT             7.3            361         0              Normal
  09/25/2021 04 AM PDT             7.2            358         -              Normal
  09/25/2021 05 AM PDT             7.2            358         0              Normal
  09/25/2021 06 AM PDT             7.2            358         0              Normal
  09/25/2021 07 AM PDT             7.2            358         0              Normal
  09/25/2021 08 AM PDT             7.2            358         0              Normal
  09/25/2021 09 AM PDT             7.2            358         0              Normal
  09/25/2021 10 AM PDT             7.2            358         0              Normal
  09/25/2021 11 AM PDT             7.2            358         0              Normal
  09/25/2021 12 PM PDT             7.2            358         0              Normal
  09/25/2021 01 PM PDT             7.2            354         -              Normal
  09/25/2021 02 PM PDT             7.2            354         0              Normal
  09/25/2021 03 PM PDT             7.2            354         0              Normal
  09/25/2021 04 PM PDT             7.2            354         0              Normal
  09/25/2021 05 PM PDT             7.2            351         -              Normal
  09/25/2021 06 PM PDT             7.2            351         0              Normal
  09/25/2021 07 PM PDT             7.2            351         0              Normal
  09/25/2021 08 PM PDT             7.2            347         -              Normal
  09/25/2021 09 PM PDT             7.2            347         0              Normal
  09/25/2021 10 PM PDT             7.2            344         -              Normal
  09/25/2021 11 PM PDT             7.2            344         0              Normal
  09/26/2021 12 AM PDT             7.2            340         -              Normal
  09/26/2021 01 AM PDT             7.2            340         0              Normal
  09/26/2021 02 AM PDT             7.2            337         -              Normal
  09/26/2021 03 AM PDT             7.2            337         0              Normal
  09/26/2021 04 AM PDT             7.2            334         -              Normal
  09/26/2021 05 AM PDT             7.2            334         0              Normal
  09/26/2021 06 AM PDT             7.2            330         -              Normal
  09/26/2021 07 AM PDT             7.2            330         0              Normal
  09/26/2021 08 AM PDT             7.2            327         -              Normal
  09/26/2021 09 AM PDT             7.2            327         0              Normal
  09/26/2021 10 AM PDT             7.2            324         -              Normal
  09/26/2021 11 AM PDT             7.2            324         0              Normal
  09/26/2021 12 PM PDT             7.1            320         -              Normal
  09/26/2021 01 PM PDT             7.1            320         0              Normal
  09/26/2021 02 PM PDT             7.1            320         0              Normal
  09/26/2021 03 PM PDT             7.1            317         -              Normal
  09/26/2021 04 PM PDT             7.1            317         0              Normal
  09/26/2021 05 PM PDT             7.1            314         -              Normal
  09/26/2021 06 PM PDT             7.1            314         0              Normal
  09/26/2021 07 PM PDT             7.1            314         0              Normal
  09/26/2021 08 PM PDT             7.1            310         -              Normal
  09/26/2021 09 PM PDT             7.1            310         0              Normal
  09/26/2021 10 PM PDT             7.1            310         0              Normal
  09/26/2021 11 PM PDT             7.1            310         0              Normal
  09/27/2021 12 AM PDT             7.1            307         -              Normal
  09/27/2021 01 AM PDT             7.1            307         0              Normal
  09/27/2021 02 AM PDT             7.1            307         0              Normal
  09/27/2021 03 AM PDT             7.1            307         0              Normal
  09/27/2021 04 AM PDT             7.1            304         -              Normal
  09/27/2021 05 AM PDT             7.1            304         0              Normal
  09/27/2021 06 AM PDT             7.1            304         0              Normal
  09/27/2021 07 AM PDT             7.1            304         0              Normal
  09/27/2021 08 AM PDT             7.1            304         0              Normal
  09/27/2021 09 AM PDT             7.1            301         -              Normal
  09/27/2021 10 AM PDT             7.1            301         0              Normal
  09/27/2021 11 AM PDT             7.1            301         0              Normal
  09/27/2021 12 PM PDT             7.1            301         0              Normal
  09/27/2021 01 PM PDT             7.1            301         0              Normal
  09/27/2021 02 PM PDT             7.1            301         0              Normal
  09/27/2021 03 PM PDT             7.1            301         0              Normal
  09/27/2021 04 PM PDT             7.1            297         -              Normal
  09/27/2021 05 PM PDT             7.1            297         0              Normal
  09/27/2021 06 PM PDT             7.1            297         0              Normal
  09/27/2021 07 PM PDT             7.1            297         0              Normal
  09/27/2021 08 PM PDT             7.1            297         0              Normal
  09/27/2021 09 PM PDT             7.1            297         0              Normal
  09/27/2021 10 PM PDT             7.1            297         0              Normal
  09/27/2021 11 PM PDT             7.1            297         0              Normal
  09/28/2021 12 AM PDT             7.1            297         0              Normal
  09/28/2021 01 AM PDT             7.1            297         0              Normal
  09/28/2021 02 AM PDT             7.1            297         0              Normal
  09/28/2021 03 AM PDT             7.1            297         0              Normal
  09/28/2021 04 AM PDT             7.1            297         0              Normal
  09/28/2021 05 AM PDT             7.1            294         -              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.