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: Jun 28 2026 at 8:01 AM PDTNext Issuance: Jun 29 2026 at 9:00 AM PDT
Action/Monitor: 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:  06/28/2026 at 08:01 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/26/2026 at 09:00 AM PDT
# Maximum Observed Stage:                       9.06 Feet
# Maximum Observed Flow:                        1686 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/28/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       8.32 Feet
# Maximum Forecast Flow:                        1217 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/23/2026 08 AM PDT            8.03           1051                        Normal
  06/23/2026 09 AM PDT            8.04           1057         +              Normal
  06/23/2026 10 AM PDT            8.05           1062         +              Normal
  06/23/2026 11 AM PDT            8.07           1074         +              Normal
  06/23/2026 12 PM PDT            8.10           1090         +              Normal
  06/23/2026 01 PM PDT            8.12           1102         +              Normal
  06/23/2026 02 PM PDT            8.15           1119         +              Normal
  06/23/2026 03 PM PDT            8.18           1136         +              Normal
  06/23/2026 04 PM PDT            8.21           1153         +              Normal
  06/23/2026 05 PM PDT            8.25           1176         +              Normal
  06/23/2026 06 PM PDT            8.28           1194         +              Normal
  06/23/2026 07 PM PDT            8.30           1205         +              Normal
  06/23/2026 08 PM PDT            8.34           1229         +              Normal
  06/23/2026 09 PM PDT            8.39           1259         +              Normal
  06/23/2026 10 PM PDT            8.42           1277         +              Normal
  06/23/2026 11 PM PDT            8.45           1295         +              Normal
  06/24/2026 12 AM PDT            8.51           1331         +              Normal
  06/24/2026 01 AM PDT            8.54           1350         +              Normal
  06/24/2026 02 AM PDT            8.56           1362         +              Normal
  06/24/2026 03 AM PDT            8.59           1381         +              Normal
  06/24/2026 04 AM PDT            8.61           1393         +              Normal
  06/24/2026 05 AM PDT            8.64           1412         +              Normal
  06/24/2026 06 AM PDT            8.67           1431         +              Normal
  06/24/2026 07 AM PDT            8.68           1437         +              Normal
  06/24/2026 08 AM PDT            8.70           1450         +              Normal
  06/24/2026 09 AM PDT            8.72           1463         +              Normal
  06/24/2026 10 AM PDT            8.75           1482         +              Normal
  06/24/2026 11 AM PDT            8.76           1488         +              Normal
  06/24/2026 12 PM PDT            8.78           1501         +              Normal
  06/24/2026 01 PM PDT            8.78           1501         0              Normal
  06/24/2026 02 PM PDT            8.79           1508         +              Normal
  06/24/2026 03 PM PDT            8.81           1520         +              Normal
  06/24/2026 04 PM PDT            8.82           1527         +              Normal
  06/24/2026 05 PM PDT            8.81           1520         -              Normal
  06/24/2026 06 PM PDT            8.83           1533         +              Normal
  06/24/2026 07 PM PDT            8.83           1533         0              Normal
  06/24/2026 08 PM PDT            8.84           1540         +              Normal
  06/24/2026 09 PM PDT            8.84           1540         0              Normal
  06/24/2026 10 PM PDT            8.86           1553         +              Normal
  06/24/2026 11 PM PDT            8.88           1566         +              Normal
  06/25/2026 12 AM PDT            8.88           1566         0              Normal
  06/25/2026 01 AM PDT            8.88           1566         0              Normal
  06/25/2026 02 AM PDT            8.87           1560         -              Normal
  06/25/2026 03 AM PDT            8.90           1579         +              Normal
  06/25/2026 04 AM PDT            8.90           1579         0              Normal
  06/25/2026 05 AM PDT            8.92           1592         +              Normal
  06/25/2026 06 AM PDT            8.93           1599         +              Normal
  06/25/2026 07 AM PDT            8.94           1606         +              Normal
  06/25/2026 08 AM PDT            8.93           1599         -              Normal
  06/25/2026 09 AM PDT            8.94           1606         +              Normal
  06/25/2026 10 AM PDT            8.94           1606         0              Normal
  06/25/2026 11 AM PDT            8.95           1612         +              Normal
  06/25/2026 12 PM PDT            8.95           1612         0              Normal
  06/25/2026 01 PM PDT            8.95           1612         0              Normal
  06/25/2026 02 PM PDT            8.96           1619         +              Normal
  06/25/2026 03 PM PDT            8.96           1619         0              Normal
  06/25/2026 04 PM PDT            8.97           1626         +              Normal
  06/25/2026 05 PM PDT            8.94           1606         -              Normal
  06/25/2026 06 PM PDT            8.94           1606         0              Normal
  06/25/2026 07 PM PDT            8.94           1606         0              Normal
  06/25/2026 08 PM PDT            8.95           1612         +              Normal
  06/25/2026 09 PM PDT            8.96           1619         +              Normal
  06/25/2026 10 PM PDT            8.97           1626         +              Normal
  06/25/2026 11 PM PDT            8.97           1626         0              Normal
  06/26/2026 12 AM PDT            8.98           1632         +              Normal
  06/26/2026 01 AM PDT            8.98           1632         0              Normal
  06/26/2026 02 AM PDT            8.99           1639         +              Normal
  06/26/2026 03 AM PDT            8.99           1639         0              Normal
  06/26/2026 04 AM PDT            9.00           1646         +              Normal
  06/26/2026 05 AM PDT            9.01           1652         +              Normal
  06/26/2026 06 AM PDT            9.02           1659         +              Normal
  06/26/2026 07 AM PDT            9.04           1672         +              Normal
  06/26/2026 08 AM PDT            9.05           1679         +              Normal
  06/26/2026 09 AM PDT            9.06           1686         +              Normal
  06/26/2026 10 AM PDT            9.04           1672         -              Normal
  06/26/2026 11 AM PDT            9.04           1672         0              Normal
  06/26/2026 12 PM PDT            9.02           1659         -              Normal
  06/26/2026 01 PM PDT            9.02           1659         0              Normal
  06/26/2026 02 PM PDT            9.03           1666         +              Normal
  06/26/2026 03 PM PDT            9.00           1646         -              Normal
  06/26/2026 04 PM PDT            9.01           1652         +              Normal
  06/26/2026 05 PM PDT            9.01           1652         0              Normal
  06/26/2026 06 PM PDT            9.01           1652         0              Normal
  06/26/2026 07 PM PDT            8.99           1639         -              Normal
  06/26/2026 08 PM PDT            8.99           1639         0              Normal
  06/26/2026 09 PM PDT            8.98           1632         -              Normal
  06/26/2026 10 PM PDT            8.98           1632         0              Normal
  06/26/2026 11 PM PDT            8.98           1632         0              Normal
  06/27/2026 12 AM PDT            8.98           1632         0              Normal
  06/27/2026 01 AM PDT            8.98           1632         0              Normal
  06/27/2026 02 AM PDT            8.99           1639         +              Normal
  06/27/2026 03 AM PDT            8.98           1632         -              Normal
  06/27/2026 04 AM PDT            8.97           1626         -              Normal
  06/27/2026 05 AM PDT            8.96           1619         -              Normal
  06/27/2026 06 AM PDT            8.99           1639         +              Normal
  06/27/2026 07 AM PDT            8.98           1632         -              Normal
  06/27/2026 08 AM PDT            8.97           1626         -              Normal
  06/27/2026 09 AM PDT            8.97           1626         0              Normal
  06/27/2026 10 AM PDT            8.94           1606         -              Normal
  06/27/2026 11 AM PDT            8.90           1579         -              Normal
  06/27/2026 12 PM PDT            8.88           1566         -              Normal
  06/27/2026 01 PM PDT            8.85           1546         -              Normal
  06/27/2026 02 PM PDT            8.81           1520         -              Normal
  06/27/2026 03 PM PDT            8.79           1508         -              Normal
  06/27/2026 04 PM PDT            8.75           1482         -              Normal
  06/27/2026 05 PM PDT            8.71           1456         -              Normal
  06/27/2026 06 PM PDT            8.67           1431         -              Normal
  06/27/2026 07 PM PDT            8.67           1431         0              Normal
  06/27/2026 08 PM PDT            8.63           1406         -              Normal
  06/27/2026 09 PM PDT            8.61           1393         -              Normal
  06/27/2026 10 PM PDT            8.58           1375         -              Normal
  06/27/2026 11 PM PDT            8.55           1356         -              Normal
  06/28/2026 12 AM PDT            8.51           1331         -              Normal
  06/28/2026 01 AM PDT            8.48           1313         -              Normal
  06/28/2026 02 AM PDT            8.45           1295         -              Normal
  06/28/2026 03 AM PDT            8.43           1283         -              Normal
  06/28/2026 04 AM PDT            8.41           1271         -              Normal
  06/28/2026 05 AM PDT            8.40           1265         -              Normal
  06/28/2026 06 AM PDT            8.37           1247         -              Normal
  06/28/2026 07 AM PDT            8.35           1235         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/28/2026 08 AM PDT            8.32           1217                        Normal
  06/28/2026 09 AM PDT            8.30           1205         -              Normal
  06/28/2026 10 AM PDT            8.28           1194         -              Normal
  06/28/2026 11 AM PDT            8.26           1182         -              Normal
  06/28/2026 12 PM PDT            8.24           1170         -              Normal
  06/28/2026 01 PM PDT            8.22           1159         -              Normal
  06/28/2026 02 PM PDT            8.20           1147         -              Normal
  06/28/2026 03 PM PDT            8.19           1142         -              Normal
  06/28/2026 04 PM PDT            8.17           1130         -              Normal
  06/28/2026 05 PM PDT            8.15           1119         -              Normal
  06/28/2026 06 PM PDT            8.14           1113         -              Normal
  06/28/2026 07 PM PDT            8.13           1107         -              Normal
  06/28/2026 08 PM PDT            8.11           1096         -              Normal
  06/28/2026 09 PM PDT            8.10           1090         -              Normal
  06/28/2026 10 PM PDT            8.09           1085         -              Normal
  06/28/2026 11 PM PDT            8.08           1079         -              Normal
  06/29/2026 12 AM PDT            8.07           1074         -              Normal
  06/29/2026 01 AM PDT            8.06           1068         -              Normal
  06/29/2026 02 AM PDT            8.05           1062         -              Normal
  06/29/2026 03 AM PDT            8.04           1057         -              Normal
  06/29/2026 04 AM PDT            8.03           1051         -              Normal
  06/29/2026 05 AM PDT            8.02           1046         -              Normal
  06/29/2026 06 AM PDT            8.01           1040         -              Normal
  06/29/2026 07 AM PDT            8.01           1040         0              Normal
  06/29/2026 08 AM PDT            8.00           1035         -              Normal
  06/29/2026 09 AM PDT            7.99           1029         -              Normal
  06/29/2026 10 AM PDT            7.99           1029         0              Normal
  06/29/2026 11 AM PDT            7.98           1024         -              Normal
  06/29/2026 12 PM PDT            7.97           1018         -              Normal
  06/29/2026 01 PM PDT            7.97           1018         0              Normal
  06/29/2026 02 PM PDT            7.96           1013         -              Normal
  06/29/2026 03 PM PDT            7.96           1013         0              Normal
  06/29/2026 04 PM PDT            7.95           1007         -              Normal
  06/29/2026 05 PM PDT            7.95           1007         0              Normal
  06/29/2026 06 PM PDT            7.94           1002         -              Normal
  06/29/2026 07 PM PDT            7.94           1002         0              Normal
  06/29/2026 08 PM PDT            7.93            997         -              Normal
  06/29/2026 09 PM PDT            7.92            991         -              Normal
  06/29/2026 10 PM PDT            7.92            991         0              Normal
  06/29/2026 11 PM PDT            7.91            986         -              Normal
  06/30/2026 12 AM PDT            7.90            980         -              Normal
  06/30/2026 01 AM PDT            7.89            975         -              Normal
  06/30/2026 02 AM PDT            7.88            970         -              Normal
  06/30/2026 03 AM PDT            7.87            964         -              Normal
  06/30/2026 04 AM PDT            7.86            959         -              Normal
  06/30/2026 05 AM PDT            7.84            948         -              Normal
  06/30/2026 06 AM PDT            7.83            943         -              Normal
  06/30/2026 07 AM PDT            7.82            938         -              Normal
  06/30/2026 08 AM PDT            7.81            933         -              Normal
  06/30/2026 09 AM PDT            7.80            927         -              Normal
  06/30/2026 10 AM PDT            7.79            922         -              Normal
  06/30/2026 11 AM PDT            7.78            917         -              Normal
  06/30/2026 12 PM PDT            7.77            912         -              Normal
  06/30/2026 01 PM PDT            7.76            906         -              Normal
  06/30/2026 02 PM PDT            7.75            901         -              Normal
  06/30/2026 03 PM PDT            7.74            896         -              Normal
  06/30/2026 04 PM PDT            7.73            891         -              Normal
  06/30/2026 05 PM PDT            7.72            886         -              Normal
  06/30/2026 06 PM PDT            7.71            881         -              Normal
  06/30/2026 07 PM PDT            7.70            876         -              Normal
  06/30/2026 08 PM PDT            7.69            870         -              Normal
  06/30/2026 09 PM PDT            7.68            865         -              Normal
  06/30/2026 10 PM PDT            7.67            860         -              Normal
  06/30/2026 11 PM PDT            7.67            860         0              Normal
  07/01/2026 12 AM PDT            7.66            855         -              Normal
  07/01/2026 01 AM PDT            7.65            850         -              Normal
  07/01/2026 02 AM PDT            7.64            845         -              Normal
  07/01/2026 03 AM PDT            7.63            840         -              Normal
  07/01/2026 04 AM PDT            7.62            835         -              Normal
  07/01/2026 05 AM PDT            7.61            830         -              Normal
  07/01/2026 06 AM PDT            7.60            825         -              Normal
  07/01/2026 07 AM PDT            7.59            820         -              Normal
  07/01/2026 08 AM PDT            7.58            815         -              Normal
  07/01/2026 09 AM PDT            7.56            805         -              Normal
  07/01/2026 10 AM PDT            7.55            800         -              Normal
  07/01/2026 11 AM PDT            7.54            795         -              Normal
  07/01/2026 12 PM PDT            7.52            786         -              Normal
  07/01/2026 01 PM PDT            7.51            781         -              Normal
  07/01/2026 02 PM PDT            7.50            776         -              Normal
  07/01/2026 03 PM PDT            7.49            771         -              Normal
  07/01/2026 04 PM PDT            7.47            761         -              Normal
  07/01/2026 05 PM PDT            7.46            756         -              Normal
  07/01/2026 06 PM PDT            7.45            752         -              Normal
  07/01/2026 07 PM PDT            7.43            742         -              Normal
  07/01/2026 08 PM PDT            7.42            737         -              Normal
  07/01/2026 09 PM PDT            7.41            733         -              Normal
  07/01/2026 10 PM PDT            7.40            728         -              Normal
  07/01/2026 11 PM PDT            7.39            723         -              Normal
  07/02/2026 12 AM PDT            7.38            718         -              Normal
  07/02/2026 01 AM PDT            7.37            714         -              Normal
  07/02/2026 02 AM PDT            7.36            709         -              Normal
  07/02/2026 03 AM PDT            7.35            704         -              Normal
  07/02/2026 04 AM PDT            7.34            700         -              Normal
  07/02/2026 05 AM PDT            7.33            695         -              Normal
  07/02/2026 06 AM PDT            7.33            695         0              Normal
  07/02/2026 07 AM PDT            7.32            690         -              Normal
  07/02/2026 08 AM PDT            7.31            686         -              Normal
  07/02/2026 09 AM PDT            7.31            686         0              Normal
  07/02/2026 10 AM PDT            7.30            681         -              Normal
  07/02/2026 11 AM PDT            7.29            677         -              Normal
  07/02/2026 12 PM PDT            7.29            677         0              Normal
  07/02/2026 01 PM PDT            7.28            672         -              Normal
  07/02/2026 02 PM PDT            7.28            672         0              Normal
  07/02/2026 03 PM PDT            7.27            667         -              Normal
  07/02/2026 04 PM PDT            7.27            667         0              Normal
  07/02/2026 05 PM PDT            7.26            663         -              Normal
  07/02/2026 06 PM PDT            7.26            663         0              Normal
  07/02/2026 07 PM PDT            7.26            663         0              Normal
  07/02/2026 08 PM PDT            7.25            658         -              Normal
  07/02/2026 09 PM PDT            7.25            658         0              Normal
  07/02/2026 10 PM PDT            7.25            658         0              Normal
  07/02/2026 11 PM PDT            7.25            658         0              Normal
  07/03/2026 12 AM PDT            7.24            654         -              Normal
  07/03/2026 01 AM PDT            7.24            654         0              Normal
  07/03/2026 02 AM PDT            7.24            654         0              Normal
  07/03/2026 03 AM PDT            7.24            654         0              Normal
  07/03/2026 04 AM PDT            7.23            649         -              Normal
  07/03/2026 05 AM PDT            7.23            649         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.