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: Nov 02 2026 at 12:58 PM PSTNext Issuance: Nov 03 2026 at 9:00 AM PST
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:  11/02/2026 at 12:58 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/31/2026 at 08:00 PM PDT
# Maximum Observed Stage:                       9.73 Feet
# Maximum Observed Flow:                        2165 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/02/2026 at 01:00 PM PST
# Maximum Forecast Stage:                       9.40 Feet
# Maximum Forecast Flow:                        1923 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/28/2026 01 PM PDT            9.23           1803                        Normal
  10/28/2026 02 PM PDT            9.20           1782         -              Normal
  10/28/2026 03 PM PDT            9.17           1761         -              Normal
  10/28/2026 04 PM PDT            9.16           1754         -              Normal
  10/28/2026 05 PM PDT            9.15           1747         -              Normal
  10/28/2026 06 PM PDT            9.12           1727         -              Normal
  10/28/2026 07 PM PDT            9.09           1706         -              Normal
  10/28/2026 08 PM PDT            9.07           1693         -              Normal
  10/28/2026 09 PM PDT            9.04           1672         -              Normal
  10/28/2026 10 PM PDT            9.02           1659         -              Normal
  10/28/2026 11 PM PDT            9.00           1646         -              Normal
  10/29/2026 12 AM PDT            8.98           1632         -              Normal
  10/29/2026 01 AM PDT            8.96           1619         -              Normal
  10/29/2026 02 AM PDT            8.94           1606         -              Normal
  10/29/2026 03 AM PDT            8.93           1599         -              Normal
  10/29/2026 04 AM PDT            8.91           1586         -              Normal
  10/29/2026 05 AM PDT            8.89           1573         -              Normal
  10/29/2026 06 AM PDT            8.88           1566         -              Normal
  10/29/2026 07 AM PDT            8.87           1560         -              Normal
  10/29/2026 08 AM PDT            8.86           1553         -              Normal
  10/29/2026 09 AM PDT            8.85           1546         -              Normal
  10/29/2026 10 AM PDT            8.84           1540         -              Normal
  10/29/2026 11 AM PDT            8.83           1533         -              Normal
  10/29/2026 12 PM PDT            8.83           1533         0              Normal
  10/29/2026 01 PM PDT            8.82           1527         -              Normal
  10/29/2026 02 PM PDT            8.82           1527         0              Normal
  10/29/2026 03 PM PDT            8.83           1533         +              Normal
  10/29/2026 04 PM PDT            8.83           1533         0              Normal
  10/29/2026 05 PM PDT            8.84           1540         +              Normal
  10/29/2026 06 PM PDT            8.84           1540         0              Normal
  10/29/2026 07 PM PDT            8.85           1546         +              Normal
  10/29/2026 08 PM PDT            8.85           1546         0              Normal
  10/29/2026 09 PM PDT            8.86           1553         +              Normal
  10/29/2026 10 PM PDT            8.87           1560         +              Normal
  10/29/2026 11 PM PDT            8.88           1566         +              Normal
  10/30/2026 12 AM PDT            8.90           1579         +              Normal
  10/30/2026 01 AM PDT            8.91           1586         +              Normal
  10/30/2026 02 AM PDT            8.93           1599         +              Normal
  10/30/2026 03 AM PDT            8.95           1612         +              Normal
  10/30/2026 04 AM PDT            8.95           1612         0              Normal
  10/30/2026 05 AM PDT            8.96           1619         +              Normal
  10/30/2026 06 AM PDT            8.99           1639         +              Normal
  10/30/2026 07 AM PDT            9.01           1652         +              Normal
  10/30/2026 08 AM PDT            9.02           1659         +              Normal
  10/30/2026 09 AM PDT            9.05           1679         +              Normal
  10/30/2026 10 AM PDT            9.06           1686         +              Normal
  10/30/2026 11 AM PDT            9.09           1706         +              Normal
  10/30/2026 12 PM PDT            9.12           1727         +              Normal
  10/30/2026 01 PM PDT            9.15           1747         +              Normal
  10/30/2026 02 PM PDT            9.19           1775         +              Normal
  10/30/2026 03 PM PDT            9.23           1803         +              Normal
  10/30/2026 04 PM PDT            9.25           1817         +              Normal
  10/30/2026 05 PM PDT            9.28           1838         +              Normal
  10/30/2026 06 PM PDT            9.31           1859         +              Normal
  10/30/2026 07 PM PDT            9.33           1873         +              Normal
  10/30/2026 08 PM PDT            9.35           1887         +              Normal
  10/30/2026 09 PM PDT            9.38           1908         +              Normal
  10/30/2026 10 PM PDT            9.41           1930         +              Normal
  10/30/2026 11 PM PDT            9.44           1951         +              Normal
  10/31/2026 12 AM PDT            9.47           1973         +              Normal
  10/31/2026 01 AM PDT            9.49           1988         +              Normal
  10/31/2026 02 AM PDT            9.53           2017         +              Normal
  10/31/2026 03 AM PDT            9.55           2031         +              Normal
  10/31/2026 04 AM PDT            9.56           2039         +              Normal
  10/31/2026 05 AM PDT            9.58           2053         +              Normal
  10/31/2026 06 AM PDT            9.60           2068         +              Normal
  10/31/2026 07 AM PDT            9.61           2076         +              Normal
  10/31/2026 08 AM PDT            9.63           2090         +              Normal
  10/31/2026 09 AM PDT            9.64           2098         +              Normal
  10/31/2026 10 AM PDT            9.65           2105         +              Normal
  10/31/2026 11 AM PDT            9.66           2113         +              Normal
  10/31/2026 12 PM PDT            9.68           2128         +              Normal
  10/31/2026 01 PM PDT            9.69           2135         +              Normal
  10/31/2026 02 PM PDT            9.69           2135         0              Normal
  10/31/2026 03 PM PDT            9.71           2150         +              Normal
  10/31/2026 04 PM PDT            9.71           2150         0              Normal
  10/31/2026 05 PM PDT            9.72           2158         +              Normal
  10/31/2026 06 PM PDT            9.72           2158         0              Normal
  10/31/2026 07 PM PDT            9.71           2150         -              Normal
  10/31/2026 08 PM PDT            9.73           2165         +              Normal
  10/31/2026 09 PM PDT            9.72           2158         -              Normal
  10/31/2026 10 PM PDT            9.71           2150         -              Normal
  10/31/2026 11 PM PDT            9.71           2150         0              Normal
  11/01/2026 12 AM PDT            9.71           2150         0              Normal
  11/01/2026 01 AM PDT            9.71           2150         0              Normal
  11/01/2026 01 AM PST            9.70           2143         -              Normal
  11/01/2026 02 AM PST            9.69           2135         -              Normal
  11/01/2026 03 AM PST            9.69           2135         0              Normal
  11/01/2026 04 AM PST            9.68           2128         -              Normal
  11/01/2026 05 AM PST            9.67           2120         -              Normal
  11/01/2026 06 AM PST            9.66           2113         -              Normal
  11/01/2026 07 AM PST            9.65           2105         -              Normal
  11/01/2026 08 AM PST            9.63           2090         -              Normal
  11/01/2026 09 AM PST            9.60           2068         -              Normal
  11/01/2026 10 AM PST            9.58           2053         -              Normal
  11/01/2026 11 AM PST            9.58           2053         0              Normal
  11/01/2026 12 PM PST            9.57           2046         -              Normal
  11/01/2026 01 PM PST            9.56           2039         -              Normal
  11/01/2026 02 PM PST            9.55           2031         -              Normal
  11/01/2026 03 PM PST            9.56           2039         +              Normal
  11/01/2026 04 PM PST            9.56           2039         0              Normal
  11/01/2026 05 PM PST            9.57           2046         +              Normal
  11/01/2026 06 PM PST            9.57           2046         0              Normal
  11/01/2026 07 PM PST            9.56           2039         -              Normal
  11/01/2026 08 PM PST            9.55           2031         -              Normal
  11/01/2026 09 PM PST            9.54           2024         -              Normal
  11/01/2026 10 PM PST            9.53           2017         -              Normal
  11/01/2026 11 PM PST            9.52           2009         -              Normal
  11/02/2026 12 AM PST            9.52           2009         0              Normal
  11/02/2026 01 AM PST            9.51           2002         -              Normal
  11/02/2026 02 AM PST            9.51           2002         0              Normal
  11/02/2026 03 AM PST            9.50           1995         -              Normal
  11/02/2026 04 AM PST            9.50           1995         0              Normal
  11/02/2026 05 AM PST            9.49           1988         -              Normal
  11/02/2026 06 AM PST            9.49           1988         0              Normal
  11/02/2026 07 AM PST            9.48           1980         -              Normal
  11/02/2026 08 AM PST            9.47           1973         -              Normal
  11/02/2026 09 AM PST            9.46           1966         -              Normal
  11/02/2026 10 AM PST            9.45           1959         -              Normal
  11/02/2026 11 AM PST            9.43           1944         -              Normal
  11/02/2026 12 PM PST            9.42           1937         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/02/2026 01 PM PST            9.40           1923                        Normal
  11/02/2026 02 PM PST            9.39           1916         -              Normal
  11/02/2026 03 PM PST            9.38           1908         -              Normal
  11/02/2026 04 PM PST            9.37           1901         -              Normal
  11/02/2026 05 PM PST            9.35           1887         -              Normal
  11/02/2026 06 PM PST            9.34           1880         -              Normal
  11/02/2026 07 PM PST            9.33           1873         -              Normal
  11/02/2026 08 PM PST            9.31           1859         -              Normal
  11/02/2026 09 PM PST            9.30           1852         -              Normal
  11/02/2026 10 PM PST            9.29           1845         -              Normal
  11/02/2026 11 PM PST            9.28           1838         -              Normal
  11/03/2026 12 AM PST            9.26           1824         -              Normal
  11/03/2026 01 AM PST            9.25           1817         -              Normal
  11/03/2026 02 AM PST            9.23           1803         -              Normal
  11/03/2026 03 AM PST            9.22           1796         -              Normal
  11/03/2026 04 AM PST            9.20           1782         -              Normal
  11/03/2026 05 AM PST            9.19           1775         -              Normal
  11/03/2026 06 AM PST            9.17           1761         -              Normal
  11/03/2026 07 AM PST            9.15           1747         -              Normal
  11/03/2026 08 AM PST            9.13           1734         -              Normal
  11/03/2026 09 AM PST            9.11           1720         -              Normal
  11/03/2026 10 AM PST            9.09           1706         -              Normal
  11/03/2026 11 AM PST            9.07           1693         -              Normal
  11/03/2026 12 PM PST            9.05           1679         -              Normal
  11/03/2026 01 PM PST            9.03           1666         -              Normal
  11/03/2026 02 PM PST            9.01           1652         -              Normal
  11/03/2026 03 PM PST            8.98           1632         -              Normal
  11/03/2026 04 PM PST            8.96           1619         -              Normal
  11/03/2026 05 PM PST            8.94           1606         -              Normal
  11/03/2026 06 PM PST            8.92           1592         -              Normal
  11/03/2026 07 PM PST            8.90           1579         -              Normal
  11/03/2026 08 PM PST            8.88           1566         -              Normal
  11/03/2026 09 PM PST            8.86           1553         -              Normal
  11/03/2026 10 PM PST            8.85           1546         -              Normal
  11/03/2026 11 PM PST            8.83           1533         -              Normal
  11/04/2026 12 AM PST            8.81           1520         -              Normal
  11/04/2026 01 AM PST            8.79           1508         -              Normal
  11/04/2026 02 AM PST            8.77           1495         -              Normal
  11/04/2026 03 AM PST            8.75           1482         -              Normal
  11/04/2026 04 AM PST            8.73           1469         -              Normal
  11/04/2026 05 AM PST            8.71           1456         -              Normal
  11/04/2026 06 AM PST            8.69           1444         -              Normal
  11/04/2026 07 AM PST            8.67           1431         -              Normal
  11/04/2026 08 AM PST            8.65           1418         -              Normal
  11/04/2026 09 AM PST            8.63           1406         -              Normal
  11/04/2026 10 AM PST            8.61           1393         -              Normal
  11/04/2026 11 AM PST            8.59           1381         -              Normal
  11/04/2026 12 PM PST            8.57           1368         -              Normal
  11/04/2026 01 PM PST            8.56           1362         -              Normal
  11/04/2026 02 PM PST            8.54           1350         -              Normal
  11/04/2026 03 PM PST            8.52           1338         -              Normal
  11/04/2026 04 PM PST            8.50           1325         -              Normal
  11/04/2026 05 PM PST            8.49           1319         -              Normal
  11/04/2026 06 PM PST            8.47           1307         -              Normal
  11/04/2026 07 PM PST            8.45           1295         -              Normal
  11/04/2026 08 PM PST            8.44           1289         -              Normal
  11/04/2026 09 PM PST            8.42           1277         -              Normal
  11/04/2026 10 PM PST            8.41           1271         -              Normal
  11/04/2026 11 PM PST            8.39           1259         -              Normal
  11/05/2026 12 AM PST            8.38           1253         -              Normal
  11/05/2026 01 AM PST            8.36           1241         -              Normal
  11/05/2026 02 AM PST            8.35           1235         -              Normal
  11/05/2026 03 AM PST            8.34           1229         -              Normal
  11/05/2026 04 AM PST            8.32           1217         -              Normal
  11/05/2026 05 AM PST            8.31           1211         -              Normal
  11/05/2026 06 AM PST            8.29           1200         -              Normal
  11/05/2026 07 AM PST            8.28           1194         -              Normal
  11/05/2026 08 AM PST            8.27           1188         -              Normal
  11/05/2026 09 AM PST            8.26           1182         -              Normal
  11/05/2026 10 AM PST            8.24           1170         -              Normal
  11/05/2026 11 AM PST            8.23           1165         -              Normal
  11/05/2026 12 PM PST            8.22           1159         -              Normal
  11/05/2026 01 PM PST            8.21           1153         -              Normal
  11/05/2026 02 PM PST            8.20           1147         -              Normal
  11/05/2026 03 PM PST            8.19           1142         -              Normal
  11/05/2026 04 PM PST            8.18           1136         -              Normal
  11/05/2026 05 PM PST            8.17           1130         -              Normal
  11/05/2026 06 PM PST            8.16           1124         -              Normal
  11/05/2026 07 PM PST            8.15           1119         -              Normal
  11/05/2026 08 PM PST            8.14           1113         -              Normal
  11/05/2026 09 PM PST            8.13           1107         -              Normal
  11/05/2026 10 PM PST            8.12           1102         -              Normal
  11/05/2026 11 PM PST            8.11           1096         -              Normal
  11/06/2026 12 AM PST            8.10           1090         -              Normal
  11/06/2026 01 AM PST            8.10           1090         0              Normal
  11/06/2026 02 AM PST            8.09           1085         -              Normal
  11/06/2026 03 AM PST            8.08           1079         -              Normal
  11/06/2026 04 AM PST            8.07           1074         -              Normal
  11/06/2026 05 AM PST            8.07           1074         0              Normal
  11/06/2026 06 AM PST            8.06           1068         -              Normal
  11/06/2026 07 AM PST            8.05           1062         -              Normal
  11/06/2026 08 AM PST            8.04           1057         -              Normal
  11/06/2026 09 AM PST            8.04           1057         0              Normal
  11/06/2026 10 AM PST            8.03           1051         -              Normal
  11/06/2026 11 AM PST            8.03           1051         0              Normal
  11/06/2026 12 PM PST            8.02           1046         -              Normal
  11/06/2026 01 PM PST            8.02           1046         0              Normal
  11/06/2026 02 PM PST            8.01           1040         -              Normal
  11/06/2026 03 PM PST            8.00           1035         -              Normal
  11/06/2026 04 PM PST            8.00           1035         0              Normal
  11/06/2026 05 PM PST            7.99           1029         -              Normal
  11/06/2026 06 PM PST            7.99           1029         0              Normal
  11/06/2026 07 PM PST            7.98           1024         -              Normal
  11/06/2026 08 PM PST            7.98           1024         0              Normal
  11/06/2026 09 PM PST            7.97           1018         -              Normal
  11/06/2026 10 PM PST            7.97           1018         0              Normal
  11/06/2026 11 PM PST            7.96           1013         -              Normal
  11/07/2026 12 AM PST            7.96           1013         0              Normal
  11/07/2026 01 AM PST            7.96           1013         0              Normal
  11/07/2026 02 AM PST            7.95           1007         -              Normal
  11/07/2026 03 AM PST            7.95           1007         0              Normal
  11/07/2026 04 AM PST            7.94           1002         -              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.