SAN JOAQUIN RIVER - VERNALIS (VNSC1)
Latitude: 37.68º NLongitude: 121.27º WElevation: 35 FeetForecast Type: Official Location
Location: San Joaquin County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Oct 06 2026 at 7:24 AM PDTNext Issuance: Oct 07 2026 at 9:00 AM PDT
Action: 24.5 FeetMinor Flood: 29.0 FeetModerate Flood: 32.0 FeetMajor Flood: 37.3 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Joaquin River - Vernalis (VNSC1)
#
# File Generation Time:  10/06/2026 at 07:24 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/05/2026 at 09:00 PM PDT
# Maximum Observed Stage:                       8.27 Feet
# Maximum Observed Flow:                        1188 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/06/2026 at 11:00 AM PDT
# Maximum Forecast Stage:                       8.26 Feet
# Maximum Forecast Flow:                        1182 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/01/2026 07 AM PDT            7.48            766                        Normal
  10/01/2026 08 AM PDT            7.49            771         +              Normal
  10/01/2026 09 AM PDT            7.49            771         0              Normal
  10/01/2026 10 AM PDT            7.50            776         +              Normal
  10/01/2026 11 AM PDT            7.51            781         +              Normal
  10/01/2026 12 PM PDT            7.52            786         +              Normal
  10/01/2026 01 PM PDT            7.53            790         +              Normal
  10/01/2026 02 PM PDT            7.52            786         -              Normal
  10/01/2026 03 PM PDT            7.52            786         0              Normal
  10/01/2026 04 PM PDT            7.52            786         0              Normal
  10/01/2026 05 PM PDT            7.51            781         -              Normal
  10/01/2026 06 PM PDT            7.52            786         +              Normal
  10/01/2026 07 PM PDT            7.51            781         -              Normal
  10/01/2026 08 PM PDT            7.52            786         +              Normal
  10/01/2026 09 PM PDT            7.53            790         +              Normal
  10/01/2026 10 PM PDT            7.54            795         +              Normal
  10/01/2026 11 PM PDT            7.55            800         +              Normal
  10/02/2026 12 AM PDT            7.55            800         0              Normal
  10/02/2026 01 AM PDT            7.56            805         +              Normal
  10/02/2026 02 AM PDT            7.56            805         0              Normal
  10/02/2026 03 AM PDT            7.57            810         +              Normal
  10/02/2026 04 AM PDT            7.58            815         +              Normal
  10/02/2026 05 AM PDT            7.59            820         +              Normal
  10/02/2026 06 AM PDT            7.60            825         +              Normal
  10/02/2026 07 AM PDT            7.61            830         +              Normal
  10/02/2026 08 AM PDT            7.59            820         -              Normal
  10/02/2026 09 AM PDT            7.62            835         +              Normal
  10/02/2026 10 AM PDT            7.62            835         0              Normal
  10/02/2026 11 AM PDT            7.63            840         +              Normal
  10/02/2026 12 PM PDT            7.63            840         0              Normal
  10/02/2026 01 PM PDT            7.64            845         +              Normal
  10/02/2026 02 PM PDT            7.65            850         +              Normal
  10/02/2026 03 PM PDT            7.66            855         +              Normal
  10/02/2026 04 PM PDT            7.67            860         +              Normal
  10/02/2026 05 PM PDT            7.68            865         +              Normal
  10/02/2026 06 PM PDT            7.68            865         0              Normal
  10/02/2026 07 PM PDT            7.68            865         0              Normal
  10/02/2026 08 PM PDT            7.68            865         0              Normal
  10/02/2026 09 PM PDT            7.68            865         0              Normal
  10/02/2026 10 PM PDT            7.68            865         0              Normal
  10/02/2026 11 PM PDT            7.68            865         0              Normal
  10/03/2026 12 AM PDT            7.68            865         0              Normal
  10/03/2026 01 AM PDT            7.69            870         +              Normal
  10/03/2026 02 AM PDT            7.70            876         +              Normal
  10/03/2026 03 AM PDT            7.72            886         +              Normal
  10/03/2026 04 AM PDT            7.73            891         +              Normal
  10/03/2026 05 AM PDT            7.75            901         +              Normal
  10/03/2026 06 AM PDT            7.76            906         +              Normal
  10/03/2026 07 AM PDT            7.77            912         +              Normal
  10/03/2026 08 AM PDT            7.77            912         0              Normal
  10/03/2026 09 AM PDT            7.78            917         +              Normal
  10/03/2026 10 AM PDT            7.78            917         0              Normal
  10/03/2026 11 AM PDT            7.78            917         0              Normal
  10/03/2026 12 PM PDT            7.79            922         +              Normal
  10/03/2026 01 PM PDT            7.79            922         0              Normal
  10/03/2026 02 PM PDT            7.80            927         +              Normal
  10/03/2026 03 PM PDT            7.80            927         0              Normal
  10/03/2026 04 PM PDT            7.82            938         +              Normal
  10/03/2026 05 PM PDT            7.82            938         0              Normal
  10/03/2026 06 PM PDT            7.83            943         +              Normal
  10/03/2026 07 PM PDT            7.84            948         +              Normal
  10/03/2026 08 PM PDT            7.85            954         +              Normal
  10/03/2026 09 PM PDT            7.86            959         +              Normal
  10/03/2026 10 PM PDT            7.87            964         +              Normal
  10/03/2026 11 PM PDT            7.89            975         +              Normal
  10/04/2026 12 AM PDT            7.90            980         +              Normal
  10/04/2026 01 AM PDT            7.93            997         +              Normal
  10/04/2026 02 AM PDT            7.94           1002         +              Normal
  10/04/2026 03 AM PDT            7.96           1013         +              Normal
  10/04/2026 04 AM PDT            7.98           1024         +              Normal
  10/04/2026 05 AM PDT            7.98           1024         0              Normal
  10/04/2026 06 AM PDT            8.00           1035         +              Normal
  10/04/2026 07 AM PDT            8.00           1035         0              Normal
  10/04/2026 08 AM PDT            8.02           1046         +              Normal
  10/04/2026 09 AM PDT            8.03           1051         +              Normal
  10/04/2026 10 AM PDT            8.05           1062         +              Normal
  10/04/2026 11 AM PDT            8.06           1068         +              Normal
  10/04/2026 12 PM PDT            8.09           1085         +              Normal
  10/04/2026 01 PM PDT            8.11           1096         +              Normal
  10/04/2026 02 PM PDT            8.14           1113         +              Normal
  10/04/2026 03 PM PDT            8.15           1119         +              Normal
  10/04/2026 04 PM PDT            8.16           1124         +              Normal
  10/04/2026 05 PM PDT            8.16           1124         0              Normal
  10/04/2026 06 PM PDT            8.16           1124         0              Normal
  10/04/2026 07 PM PDT            8.16           1124         0              Normal
  10/04/2026 08 PM PDT            8.16           1124         0              Normal
  10/04/2026 09 PM PDT            8.16           1124         0              Normal
  10/04/2026 10 PM PDT            8.16           1124         0              Normal
  10/04/2026 11 PM PDT            8.16           1124         0              Normal
  10/05/2026 12 AM PDT            8.16           1124         0              Normal
  10/05/2026 01 AM PDT            8.16           1124         0              Normal
  10/05/2026 02 AM PDT            8.16           1124         0              Normal
  10/05/2026 03 AM PDT            8.16           1124         0              Normal
  10/05/2026 04 AM PDT            8.16           1124         0              Normal
  10/05/2026 05 AM PDT            8.16           1124         0              Normal
  10/05/2026 06 AM PDT            8.16           1124         0              Normal
  10/05/2026 07 AM PDT            8.17           1130         +              Normal
  10/05/2026 08 AM PDT            8.17           1130         0              Normal
  10/05/2026 09 AM PDT            8.17           1130         0              Normal
  10/05/2026 10 AM PDT            8.17           1130         0              Normal
  10/05/2026 11 AM PDT            8.17           1130         0              Normal
  10/05/2026 12 PM PDT            8.18           1136         +              Normal
  10/05/2026 01 PM PDT            8.19           1142         +              Normal
  10/05/2026 02 PM PDT            8.21           1153         +              Normal
  10/05/2026 03 PM PDT            8.23           1165         +              Normal
  10/05/2026 04 PM PDT            8.23           1165         0              Normal
  10/05/2026 05 PM PDT            8.25           1176         +              Normal
  10/05/2026 06 PM PDT            8.26           1182         +              Normal
  10/05/2026 07 PM PDT            8.26           1182         0              Normal
  10/05/2026 08 PM PDT            8.27           1188         +              Normal
  10/05/2026 09 PM PDT            8.27           1188         0              Normal
  10/05/2026 10 PM PDT            8.26           1182         -              Normal
  10/05/2026 11 PM PDT            8.26           1182         0              Normal
  10/06/2026 12 AM PDT            8.25           1176         -              Normal
  10/06/2026 01 AM PDT            8.25           1176         0              Normal
  10/06/2026 02 AM PDT            8.25           1176         0              Normal
  10/06/2026 03 AM PDT            8.24           1170         -              Normal
  10/06/2026 04 AM PDT            8.23           1165         -              Normal
  10/06/2026 05 AM PDT            8.24           1170         +              Normal
  10/06/2026 06 AM PDT            8.24           1170         0              Normal
  10/06/2026 07 AM PDT            8.25           1176         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/06/2026 08 AM PDT            8.25           1176                        Normal
  10/06/2026 09 AM PDT            8.25           1176         0              Normal
  10/06/2026 10 AM PDT            8.25           1176         0              Normal
  10/06/2026 11 AM PDT            8.26           1182         +              Normal
  10/06/2026 12 PM PDT            8.26           1182         0              Normal
  10/06/2026 01 PM PDT            8.26           1182         0              Normal
  10/06/2026 02 PM PDT            8.26           1182         0              Normal
  10/06/2026 03 PM PDT            8.26           1182         0              Normal
  10/06/2026 04 PM PDT            8.26           1182         0              Normal
  10/06/2026 05 PM PDT            8.26           1182         0              Normal
  10/06/2026 06 PM PDT            8.26           1182         0              Normal
  10/06/2026 07 PM PDT            8.26           1182         0              Normal
  10/06/2026 08 PM PDT            8.26           1182         0              Normal
  10/06/2026 09 PM PDT            8.26           1182         0              Normal
  10/06/2026 10 PM PDT            8.26           1182         0              Normal
  10/06/2026 11 PM PDT            8.26           1182         0              Normal
  10/07/2026 12 AM PDT            8.25           1176         -              Normal
  10/07/2026 01 AM PDT            8.25           1176         0              Normal
  10/07/2026 02 AM PDT            8.25           1176         0              Normal
  10/07/2026 03 AM PDT            8.24           1170         -              Normal
  10/07/2026 04 AM PDT            8.24           1170         0              Normal
  10/07/2026 05 AM PDT            8.23           1165         -              Normal
  10/07/2026 06 AM PDT            8.22           1159         -              Normal
  10/07/2026 07 AM PDT            8.22           1159         0              Normal
  10/07/2026 08 AM PDT            8.21           1153         -              Normal
  10/07/2026 09 AM PDT            8.20           1147         -              Normal
  10/07/2026 10 AM PDT            8.19           1142         -              Normal
  10/07/2026 11 AM PDT            8.18           1136         -              Normal
  10/07/2026 12 PM PDT            8.18           1136         0              Normal
  10/07/2026 01 PM PDT            8.17           1130         -              Normal
  10/07/2026 02 PM PDT            8.16           1124         -              Normal
  10/07/2026 03 PM PDT            8.15           1119         -              Normal
  10/07/2026 04 PM PDT            8.14           1113         -              Normal
  10/07/2026 05 PM PDT            8.13           1107         -              Normal
  10/07/2026 06 PM PDT            8.12           1102         -              Normal
  10/07/2026 07 PM PDT            8.12           1102         0              Normal
  10/07/2026 08 PM PDT            8.11           1096         -              Normal
  10/07/2026 09 PM PDT            8.10           1090         -              Normal
  10/07/2026 10 PM PDT            8.09           1085         -              Normal
  10/07/2026 11 PM PDT            8.09           1085         0              Normal
  10/08/2026 12 AM PDT            8.08           1079         -              Normal
  10/08/2026 01 AM PDT            8.08           1079         0              Normal
  10/08/2026 02 AM PDT            8.08           1079         0              Normal
  10/08/2026 03 AM PDT            8.08           1079         0              Normal
  10/08/2026 04 AM PDT            8.08           1079         0              Normal
  10/08/2026 05 AM PDT            8.08           1079         0              Normal
  10/08/2026 06 AM PDT            8.08           1079         0              Normal
  10/08/2026 07 AM PDT            8.09           1085         +              Normal
  10/08/2026 08 AM PDT            8.09           1085         0              Normal
  10/08/2026 09 AM PDT            8.09           1085         0              Normal
  10/08/2026 10 AM PDT            8.10           1090         +              Normal
  10/08/2026 11 AM PDT            8.10           1090         0              Normal
  10/08/2026 12 PM PDT            8.11           1096         +              Normal
  10/08/2026 01 PM PDT            8.11           1096         0              Normal
  10/08/2026 02 PM PDT            8.12           1102         +              Normal
  10/08/2026 03 PM PDT            8.12           1102         0              Normal
  10/08/2026 04 PM PDT            8.13           1107         +              Normal
  10/08/2026 05 PM PDT            8.13           1107         0              Normal
  10/08/2026 06 PM PDT            8.14           1113         +              Normal
  10/08/2026 07 PM PDT            8.14           1113         0              Normal
  10/08/2026 08 PM PDT            8.15           1119         +              Normal
  10/08/2026 09 PM PDT            8.15           1119         0              Normal
  10/08/2026 10 PM PDT            8.16           1124         +              Normal
  10/08/2026 11 PM PDT            8.16           1124         0              Normal
  10/09/2026 12 AM PDT            8.17           1130         +              Normal
  10/09/2026 01 AM PDT            8.17           1130         0              Normal
  10/09/2026 02 AM PDT            8.18           1136         +              Normal
  10/09/2026 03 AM PDT            8.18           1136         0              Normal
  10/09/2026 04 AM PDT            8.18           1136         0              Normal
  10/09/2026 05 AM PDT            8.19           1142         +              Normal
  10/09/2026 06 AM PDT            8.19           1142         0              Normal
  10/09/2026 07 AM PDT            8.20           1147         +              Normal
  10/09/2026 08 AM PDT            8.20           1147         0              Normal
  10/09/2026 09 AM PDT            8.20           1147         0              Normal
  10/09/2026 10 AM PDT            8.21           1153         +              Normal
  10/09/2026 11 AM PDT            8.21           1153         0              Normal
  10/09/2026 12 PM PDT            8.21           1153         0              Normal
  10/09/2026 01 PM PDT            8.21           1153         0              Normal
  10/09/2026 02 PM PDT            8.22           1159         +              Normal
  10/09/2026 03 PM PDT            8.22           1159         0              Normal
  10/09/2026 04 PM PDT            8.22           1159         0              Normal
  10/09/2026 05 PM PDT            8.22           1159         0              Normal
  10/09/2026 06 PM PDT            8.23           1165         +              Normal
  10/09/2026 07 PM PDT            8.23           1165         0              Normal
  10/09/2026 08 PM PDT            8.23           1165         0              Normal
  10/09/2026 09 PM PDT            8.23           1165         0              Normal
  10/09/2026 10 PM PDT            8.23           1165         0              Normal
  10/09/2026 11 PM PDT            8.24           1170         +              Normal
  10/10/2026 12 AM PDT            8.24           1170         0              Normal
  10/10/2026 01 AM PDT            8.24           1170         0              Normal
  10/10/2026 02 AM PDT            8.24           1170         0              Normal
  10/10/2026 03 AM PDT            8.24           1170         0              Normal
  10/10/2026 04 AM PDT            8.24           1170         0              Normal
  10/10/2026 05 AM PDT            8.24           1170         0              Normal
  10/10/2026 06 AM PDT            8.24           1170         0              Normal
  10/10/2026 07 AM PDT            8.25           1176         +              Normal
  10/10/2026 08 AM PDT            8.25           1176         0              Normal
  10/10/2026 09 AM PDT            8.25           1176         0              Normal
  10/10/2026 10 AM PDT            8.25           1176         0              Normal
  10/10/2026 11 AM PDT            8.25           1176         0              Normal
  10/10/2026 12 PM PDT            8.25           1176         0              Normal
  10/10/2026 01 PM PDT            8.25           1176         0              Normal
  10/10/2026 02 PM PDT            8.25           1176         0              Normal
  10/10/2026 03 PM PDT            8.25           1176         0              Normal
  10/10/2026 04 PM PDT            8.25           1176         0              Normal
  10/10/2026 05 PM PDT            8.25           1176         0              Normal
  10/10/2026 06 PM PDT            8.25           1176         0              Normal
  10/10/2026 07 PM PDT            8.25           1176         0              Normal
  10/10/2026 08 PM PDT            8.26           1182         +              Normal
  10/10/2026 09 PM PDT            8.26           1182         0              Normal
  10/10/2026 10 PM PDT            8.26           1182         0              Normal
  10/10/2026 11 PM PDT            8.26           1182         0              Normal
  10/11/2026 12 AM PDT            8.26           1182         0              Normal
  10/11/2026 01 AM PDT            8.26           1182         0              Normal
  10/11/2026 02 AM PDT            8.26           1182         0              Normal
  10/11/2026 03 AM PDT            8.26           1182         0              Normal
  10/11/2026 04 AM PDT            8.26           1182         0              Normal
  10/11/2026 05 AM PDT            8.26           1182         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.