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 05 2026 at 12:37 PM PSTNext Issuance: Nov 06 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:  11/05/2026 at 12:37 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:     11/09/2026 at 07:00 PM PST
# Maximum Forecast Stage:                       8.49 Feet
# Maximum Forecast Flow:                        1319 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  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            9.41           1930         -              Normal
  11/02/2026 01 PM PST            9.40           1923         -              Normal
  11/02/2026 02 PM PST            9.38           1908         -              Normal
  11/02/2026 03 PM PST            9.36           1894         -              Normal
  11/02/2026 04 PM PST            9.34           1880         -              Normal
  11/02/2026 05 PM PST            9.33           1873         -              Normal
  11/02/2026 06 PM PST            9.32           1866         -              Normal
  11/02/2026 07 PM PST            9.30           1852         -              Normal
  11/02/2026 08 PM PST            9.29           1845         -              Normal
  11/02/2026 09 PM PST            9.29           1845         0              Normal
  11/02/2026 10 PM PST            9.28           1838         -              Normal
  11/02/2026 11 PM PST            9.28           1838         0              Normal
  11/03/2026 12 AM PST            9.26           1824         -              Normal
  11/03/2026 01 AM PST            9.26           1824         0              Normal
  11/03/2026 02 AM PST            9.25           1817         -              Normal
  11/03/2026 03 AM PST            9.24           1810         -              Normal
  11/03/2026 04 AM PST            9.23           1803         -              Normal
  11/03/2026 05 AM PST            9.22           1796         -              Normal
  11/03/2026 06 AM PST            9.21           1789         -              Normal
  11/03/2026 07 AM PST            9.20           1782         -              Normal
  11/03/2026 08 AM PST            9.19           1775         -              Normal
  11/03/2026 09 AM PST            9.17           1761         -              Normal
  11/03/2026 10 AM PST            9.16           1754         -              Normal
  11/03/2026 11 AM PST            9.15           1747         -              Normal
  11/03/2026 12 PM PST            9.14           1740         -              Normal
  11/03/2026 01 PM PST            9.12           1727         -              Normal
  11/03/2026 02 PM PST            9.10           1713         -              Normal
  11/03/2026 03 PM PST            9.10           1713         0              Normal
  11/03/2026 04 PM PST            9.10           1713         0              Normal
  11/03/2026 05 PM PST            9.08           1700         -              Normal
  11/03/2026 06 PM PST            9.06           1686         -              Normal
  11/03/2026 07 PM PST            9.04           1672         -              Normal
  11/03/2026 08 PM PST            9.01           1652         -              Normal
  11/03/2026 09 PM PST            8.98           1632         -              Normal
  11/03/2026 10 PM PST            8.96           1619         -              Normal
  11/03/2026 11 PM PST            8.93           1599         -              Normal
  11/04/2026 12 AM PST            8.90           1579         -              Normal
  11/04/2026 01 AM PST            8.87           1560         -              Normal
  11/04/2026 02 AM PST            8.87           1560         0              Normal
  11/04/2026 03 AM PST            8.84           1540         -              Normal
  11/04/2026 04 AM PST            8.81           1520         -              Normal
  11/04/2026 05 AM PST            8.80           1514         -              Normal
  11/04/2026 06 AM PST            8.78           1501         -              Normal
  11/04/2026 07 AM PST            8.76           1488         -              Normal
  11/04/2026 08 AM PST            8.74           1475         -              Normal
  11/04/2026 09 AM PST            8.72           1463         -              Normal
  11/04/2026 10 AM PST            8.70           1450         -              Normal
  11/04/2026 11 AM PST            8.69           1444         -              Normal
  11/04/2026 12 PM PST            8.67           1431         -              Normal
  11/04/2026 01 PM PST            8.65           1418         -              Normal
  11/04/2026 02 PM PST            8.63           1406         -              Normal
  11/04/2026 03 PM PST            8.62           1400         -              Normal
  11/04/2026 04 PM PST            8.62           1400         0              Normal
  11/04/2026 05 PM PST            8.63           1406         +              Normal
  11/04/2026 06 PM PST            8.61           1393         -              Normal
  11/04/2026 07 PM PST            8.60           1387         -              Normal
  11/04/2026 08 PM PST            8.60           1387         0              Normal
  11/04/2026 09 PM PST            8.59           1381         -              Normal
  11/04/2026 10 PM PST            8.57           1368         -              Normal
  11/04/2026 11 PM PST            8.56           1362         -              Normal
  11/05/2026 12 AM PST            8.55           1356         -              Normal
  11/05/2026 01 AM PST            8.53           1344         -              Normal
  11/05/2026 02 AM PST            8.52           1338         -              Normal
  11/05/2026 03 AM PST            8.51           1331         -              Normal
  11/05/2026 04 AM PST            8.50           1325         -              Normal
  11/05/2026 05 AM PST            8.48           1313         -              Normal
  11/05/2026 06 AM PST            8.48           1313         0              Normal
  11/05/2026 07 AM PST            8.47           1307         -              Normal
  11/05/2026 08 AM PST            8.46           1301         -              Normal
  11/05/2026 09 AM PST            8.45           1295         -              Normal
  11/05/2026 10 AM PST            8.43           1283         -              Normal
  11/05/2026 11 AM PST            8.42           1277         -              Normal
  11/05/2026 12 PM PST            8.41           1271         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/05/2026 01 PM PST            8.41           1271                        Normal
  11/05/2026 02 PM PST            8.40           1265         -              Normal
  11/05/2026 03 PM PST            8.40           1265         0              Normal
  11/05/2026 04 PM PST            8.39           1259         -              Normal
  11/05/2026 05 PM PST            8.38           1253         -              Normal
  11/05/2026 06 PM PST            8.38           1253         0              Normal
  11/05/2026 07 PM PST            8.37           1247         -              Normal
  11/05/2026 08 PM PST            8.37           1247         0              Normal
  11/05/2026 09 PM PST            8.36           1241         -              Normal
  11/05/2026 10 PM PST            8.36           1241         0              Normal
  11/05/2026 11 PM PST            8.36           1241         0              Normal
  11/06/2026 12 AM PST            8.35           1235         -              Normal
  11/06/2026 01 AM PST            8.35           1235         0              Normal
  11/06/2026 02 AM PST            8.34           1229         -              Normal
  11/06/2026 03 AM PST            8.34           1229         0              Normal
  11/06/2026 04 AM PST            8.34           1229         0              Normal
  11/06/2026 05 AM PST            8.33           1223         -              Normal
  11/06/2026 06 AM PST            8.33           1223         0              Normal
  11/06/2026 07 AM PST            8.32           1217         -              Normal
  11/06/2026 08 AM PST            8.32           1217         0              Normal
  11/06/2026 09 AM PST            8.32           1217         0              Normal
  11/06/2026 10 AM PST            8.32           1217         0              Normal
  11/06/2026 11 AM PST            8.31           1211         -              Normal
  11/06/2026 12 PM PST            8.31           1211         0              Normal
  11/06/2026 01 PM PST            8.31           1211         0              Normal
  11/06/2026 02 PM PST            8.30           1205         -              Normal
  11/06/2026 03 PM PST            8.30           1205         0              Normal
  11/06/2026 04 PM PST            8.30           1205         0              Normal
  11/06/2026 05 PM PST            8.30           1205         0              Normal
  11/06/2026 06 PM PST            8.29           1200         -              Normal
  11/06/2026 07 PM PST            8.29           1200         0              Normal
  11/06/2026 08 PM PST            8.29           1200         0              Normal
  11/06/2026 09 PM PST            8.29           1200         0              Normal
  11/06/2026 10 PM PST            8.29           1200         0              Normal
  11/06/2026 11 PM PST            8.29           1200         0              Normal
  11/07/2026 12 AM PST            8.29           1200         0              Normal
  11/07/2026 01 AM PST            8.29           1200         0              Normal
  11/07/2026 02 AM PST            8.29           1200         0              Normal
  11/07/2026 03 AM PST            8.29           1200         0              Normal
  11/07/2026 04 AM PST            8.30           1205         +              Normal
  11/07/2026 05 AM PST            8.30           1205         0              Normal
  11/07/2026 06 AM PST            8.30           1205         0              Normal
  11/07/2026 07 AM PST            8.31           1211         +              Normal
  11/07/2026 08 AM PST            8.31           1211         0              Normal
  11/07/2026 09 AM PST            8.32           1217         +              Normal
  11/07/2026 10 AM PST            8.32           1217         0              Normal
  11/07/2026 11 AM PST            8.33           1223         +              Normal
  11/07/2026 12 PM PST            8.34           1229         +              Normal
  11/07/2026 01 PM PST            8.34           1229         0              Normal
  11/07/2026 02 PM PST            8.35           1235         +              Normal
  11/07/2026 03 PM PST            8.35           1235         0              Normal
  11/07/2026 04 PM PST            8.36           1241         +              Normal
  11/07/2026 05 PM PST            8.36           1241         0              Normal
  11/07/2026 06 PM PST            8.37           1247         +              Normal
  11/07/2026 07 PM PST            8.38           1253         +              Normal
  11/07/2026 08 PM PST            8.38           1253         0              Normal
  11/07/2026 09 PM PST            8.38           1253         0              Normal
  11/07/2026 10 PM PST            8.39           1259         +              Normal
  11/07/2026 11 PM PST            8.39           1259         0              Normal
  11/08/2026 12 AM PST            8.40           1265         +              Normal
  11/08/2026 01 AM PST            8.40           1265         0              Normal
  11/08/2026 02 AM PST            8.41           1271         +              Normal
  11/08/2026 03 AM PST            8.41           1271         0              Normal
  11/08/2026 04 AM PST            8.42           1277         +              Normal
  11/08/2026 05 AM PST            8.42           1277         0              Normal
  11/08/2026 06 AM PST            8.42           1277         0              Normal
  11/08/2026 07 AM PST            8.43           1283         +              Normal
  11/08/2026 08 AM PST            8.43           1283         0              Normal
  11/08/2026 09 AM PST            8.43           1283         0              Normal
  11/08/2026 10 AM PST            8.44           1289         +              Normal
  11/08/2026 11 AM PST            8.44           1289         0              Normal
  11/08/2026 12 PM PST            8.44           1289         0              Normal
  11/08/2026 01 PM PST            8.45           1295         +              Normal
  11/08/2026 02 PM PST            8.45           1295         0              Normal
  11/08/2026 03 PM PST            8.45           1295         0              Normal
  11/08/2026 04 PM PST            8.45           1295         0              Normal
  11/08/2026 05 PM PST            8.46           1301         +              Normal
  11/08/2026 06 PM PST            8.46           1301         0              Normal
  11/08/2026 07 PM PST            8.46           1301         0              Normal
  11/08/2026 08 PM PST            8.46           1301         0              Normal
  11/08/2026 09 PM PST            8.46           1301         0              Normal
  11/08/2026 10 PM PST            8.46           1301         0              Normal
  11/08/2026 11 PM PST            8.47           1307         +              Normal
  11/09/2026 12 AM PST            8.47           1307         0              Normal
  11/09/2026 01 AM PST            8.47           1307         0              Normal
  11/09/2026 02 AM PST            8.47           1307         0              Normal
  11/09/2026 03 AM PST            8.47           1307         0              Normal
  11/09/2026 04 AM PST            8.47           1307         0              Normal
  11/09/2026 05 AM PST            8.47           1307         0              Normal
  11/09/2026 06 AM PST            8.47           1307         0              Normal
  11/09/2026 07 AM PST            8.48           1313         +              Normal
  11/09/2026 08 AM PST            8.48           1313         0              Normal
  11/09/2026 09 AM PST            8.48           1313         0              Normal
  11/09/2026 10 AM PST            8.48           1313         0              Normal
  11/09/2026 11 AM PST            8.48           1313         0              Normal
  11/09/2026 12 PM PST            8.48           1313         0              Normal
  11/09/2026 01 PM PST            8.48           1313         0              Normal
  11/09/2026 02 PM PST            8.48           1313         0              Normal
  11/09/2026 03 PM PST            8.48           1313         0              Normal
  11/09/2026 04 PM PST            8.48           1313         0              Normal
  11/09/2026 05 PM PST            8.48           1313         0              Normal
  11/09/2026 06 PM PST            8.48           1313         0              Normal
  11/09/2026 07 PM PST            8.49           1319         +              Normal
  11/09/2026 08 PM PST            8.49           1319         0              Normal
  11/09/2026 09 PM PST            8.49           1319         0              Normal
  11/09/2026 10 PM PST            8.49           1319         0              Normal
  11/09/2026 11 PM PST            8.49           1319         0              Normal
  11/10/2026 12 AM PST            8.49           1319         0              Normal
  11/10/2026 01 AM PST            8.49           1319         0              Normal
  11/10/2026 02 AM PST            8.49           1319         0              Normal
  11/10/2026 03 AM PST            8.49           1319         0              Normal
  11/10/2026 04 AM PST            8.49           1319         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.