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SAN JOAQUIN RIVER - VERNALIS (VNSC1)
| Latitude: 37.68º N | Longitude: 121.27º W | Elevation: 35 Feet | | Forecast Type: Official Location |
| Location: San Joaquin County in California | Bulletin Group: San Joaquin | River Group: San Joaquin |
| Issuance Time: | Jun 06 2026 at 7:59 AM PDT | Next Issuance: | Jun 07 2026 at 9:00 AM PDT
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| Action/Monitor: 24.5 Feet | Minor Flood: 29.0 Feet | Moderate Flood: 32.0 Feet | Major Flood: 37.3 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Joaquin River - Vernalis (VNSC1)
#
# File Generation Time: 06/06/2026 at 07:59 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 06/01/2026 at 09:00 AM PDT
# Maximum Observed Stage: 9.72 Feet
# Maximum Observed Flow: 2158 cfs
#
# Earliest Date & Time of Maximum Forecast: 06/06/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 9.41 Feet
# Maximum Forecast Flow: 1930 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
06/01/2026 07 AM PDT 9.69 2135 Normal
06/01/2026 08 AM PDT 9.71 2150 + Normal
06/01/2026 09 AM PDT 9.72 2158 + Normal
06/01/2026 10 AM PDT 9.70 2143 - Normal
06/01/2026 11 AM PDT 9.68 2128 - Normal
06/01/2026 12 PM PDT 9.67 2120 - Normal
06/01/2026 01 PM PDT 9.66 2113 - Normal
06/01/2026 02 PM PDT 9.65 2105 - Normal
06/01/2026 03 PM PDT 9.64 2098 - Normal
06/01/2026 04 PM PDT 9.61 2076 - Normal
06/01/2026 05 PM PDT 9.58 2053 - Normal
06/01/2026 06 PM PDT 9.55 2031 - Normal
06/01/2026 07 PM PDT 9.51 2002 - Normal
06/01/2026 08 PM PDT 9.48 1980 - Normal
06/01/2026 09 PM PDT 9.47 1973 - Normal
06/01/2026 10 PM PDT 9.44 1951 - Normal
06/01/2026 11 PM PDT 9.42 1937 - Normal
06/02/2026 12 AM PDT 9.41 1930 - Normal
06/02/2026 01 AM PDT 9.39 1916 - Normal
06/02/2026 02 AM PDT 9.38 1908 - Normal
06/02/2026 03 AM PDT 9.38 1908 0 Normal
06/02/2026 04 AM PDT 9.37 1901 - Normal
06/02/2026 05 AM PDT 9.37 1901 0 Normal
06/02/2026 06 AM PDT 9.37 1901 0 Normal
06/02/2026 07 AM PDT 9.36 1894 - Normal
06/02/2026 08 AM PDT 9.36 1894 0 Normal
06/02/2026 09 AM PDT 9.33 1873 - Normal
06/02/2026 10 AM PDT 9.34 1880 + Normal
06/02/2026 11 AM PDT 9.35 1887 + Normal
06/02/2026 12 PM PDT 9.33 1873 - Normal
06/02/2026 01 PM PDT 9.33 1873 0 Normal
06/02/2026 02 PM PDT 9.34 1880 + Normal
06/02/2026 03 PM PDT 9.34 1880 0 Normal
06/02/2026 04 PM PDT 9.34 1880 0 Normal
06/02/2026 05 PM PDT 9.34 1880 0 Normal
06/02/2026 06 PM PDT 9.33 1873 - Normal
06/02/2026 07 PM PDT 9.36 1894 + Normal
06/02/2026 08 PM PDT 9.36 1894 0 Normal
06/02/2026 09 PM PDT 9.37 1901 + Normal
06/02/2026 10 PM PDT 9.38 1908 + Normal
06/02/2026 11 PM PDT 9.38 1908 0 Normal
06/03/2026 12 AM PDT 9.39 1916 + Normal
06/03/2026 01 AM PDT 9.39 1916 0 Normal
06/03/2026 02 AM PDT 9.41 1930 + Normal
06/03/2026 03 AM PDT 9.43 1944 + Normal
06/03/2026 04 AM PDT 9.44 1951 + Normal
06/03/2026 05 AM PDT 9.45 1959 + Normal
06/03/2026 06 AM PDT 9.46 1966 + Normal
06/03/2026 07 AM PDT 9.47 1973 + Normal
06/03/2026 08 AM PDT 9.47 1973 0 Normal
06/03/2026 09 AM PDT 9.48 1980 + Normal
06/03/2026 10 AM PDT 9.47 1973 - Normal
06/03/2026 11 AM PDT 9.46 1966 - Normal
06/03/2026 12 PM PDT 9.45 1959 - Normal
06/03/2026 01 PM PDT 9.45 1959 0 Normal
06/03/2026 02 PM PDT 9.43 1944 - Normal
06/03/2026 03 PM PDT 9.43 1944 0 Normal
06/03/2026 04 PM PDT 9.42 1937 - Normal
06/03/2026 05 PM PDT 9.43 1944 + Normal
06/03/2026 06 PM PDT 9.41 1930 - Normal
06/03/2026 07 PM PDT 9.43 1944 + Normal
06/03/2026 08 PM PDT 9.42 1937 - Normal
06/03/2026 09 PM PDT 9.41 1930 - Normal
06/03/2026 10 PM PDT 9.38 1908 - Normal
06/03/2026 11 PM PDT 9.39 1916 + Normal
06/04/2026 12 AM PDT 9.40 1923 + Normal
06/04/2026 01 AM PDT 9.40 1923 0 Normal
06/04/2026 02 AM PDT 9.40 1923 0 Normal
06/04/2026 03 AM PDT 9.41 1930 + Normal
06/04/2026 04 AM PDT 9.42 1937 + Normal
06/04/2026 05 AM PDT 9.42 1937 0 Normal
06/04/2026 06 AM PDT 9.42 1937 0 Normal
06/04/2026 07 AM PDT 9.42 1937 0 Normal
06/04/2026 08 AM PDT 9.42 1937 0 Normal
06/04/2026 09 AM PDT 9.41 1930 - Normal
06/04/2026 10 AM PDT 9.39 1916 - Normal
06/04/2026 11 AM PDT 9.39 1916 0 Normal
06/04/2026 12 PM PDT 9.39 1916 0 Normal
06/04/2026 01 PM PDT 9.38 1908 - Normal
06/04/2026 02 PM PDT 9.38 1908 0 Normal
06/04/2026 03 PM PDT 9.36 1894 - Normal
06/04/2026 04 PM PDT 9.37 1901 + Normal
06/04/2026 05 PM PDT 9.36 1894 - Normal
06/04/2026 06 PM PDT 9.35 1887 - Normal
06/04/2026 07 PM PDT 9.36 1894 + Normal
06/04/2026 08 PM PDT 9.37 1901 + Normal
06/04/2026 09 PM PDT 9.36 1894 - Normal
06/04/2026 10 PM PDT 9.35 1887 - Normal
06/04/2026 11 PM PDT 9.34 1880 - Normal
06/05/2026 12 AM PDT 9.34 1880 0 Normal
06/05/2026 01 AM PDT 9.34 1880 0 Normal
06/05/2026 02 AM PDT 9.34 1880 0 Normal
06/05/2026 03 AM PDT 9.33 1873 - Normal
06/05/2026 04 AM PDT 9.33 1873 0 Normal
06/05/2026 05 AM PDT 9.33 1873 0 Normal
06/05/2026 06 AM PDT 9.32 1866 - Normal
06/05/2026 07 AM PDT 9.32 1866 0 Normal
06/05/2026 08 AM PDT 9.32 1866 0 Normal
06/05/2026 09 AM PDT 9.32 1866 0 Normal
06/05/2026 10 AM PDT 9.31 1859 - Normal
06/05/2026 11 AM PDT 9.31 1859 0 Normal
06/05/2026 12 PM PDT 9.30 1852 - Normal
06/05/2026 01 PM PDT 9.30 1852 0 Normal
06/05/2026 02 PM PDT 9.31 1859 + Normal
06/05/2026 03 PM PDT 9.31 1859 0 Normal
06/05/2026 04 PM PDT 9.30 1852 - Normal
06/05/2026 05 PM PDT 9.31 1859 + Normal
06/05/2026 06 PM PDT 9.32 1866 + Normal
06/05/2026 07 PM PDT 9.34 1880 + Normal
06/05/2026 08 PM PDT 9.35 1887 + Normal
06/05/2026 09 PM PDT 9.36 1894 + Normal
06/05/2026 10 PM PDT 9.37 1901 + Normal
06/05/2026 11 PM PDT 9.38 1908 + Normal
06/06/2026 12 AM PDT 9.39 1916 + Normal
06/06/2026 01 AM PDT 9.40 1923 + Normal
06/06/2026 02 AM PDT 9.41 1930 + Normal
06/06/2026 03 AM PDT 9.42 1937 + Normal
06/06/2026 04 AM PDT 9.43 1944 + Normal
06/06/2026 05 AM PDT 9.44 1951 + Normal
06/06/2026 06 AM PDT 9.43 1944 - Normal
06/06/2026 07 AM PDT 9.42 1937 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
06/06/2026 08 AM PDT 9.41 1930 Normal
06/06/2026 09 AM PDT 9.40 1923 - Normal
06/06/2026 10 AM PDT 9.38 1908 - Normal
06/06/2026 11 AM PDT 9.37 1901 - Normal
06/06/2026 12 PM PDT 9.35 1887 - Normal
06/06/2026 01 PM PDT 9.33 1873 - Normal
06/06/2026 02 PM PDT 9.31 1859 - Normal
06/06/2026 03 PM PDT 9.29 1845 - Normal
06/06/2026 04 PM PDT 9.27 1831 - Normal
06/06/2026 05 PM PDT 9.25 1817 - Normal
06/06/2026 06 PM PDT 9.23 1803 - Normal
06/06/2026 07 PM PDT 9.21 1789 - Normal
06/06/2026 08 PM PDT 9.18 1768 - Normal
06/06/2026 09 PM PDT 9.16 1754 - Normal
06/06/2026 10 PM PDT 9.14 1740 - Normal
06/06/2026 11 PM PDT 9.11 1720 - Normal
06/07/2026 12 AM PDT 9.09 1706 - Normal
06/07/2026 01 AM PDT 9.07 1693 - Normal
06/07/2026 02 AM PDT 9.04 1672 - Normal
06/07/2026 03 AM PDT 9.02 1659 - Normal
06/07/2026 04 AM PDT 9.00 1646 - Normal
06/07/2026 05 AM PDT 8.97 1626 - Normal
06/07/2026 06 AM PDT 8.95 1612 - Normal
06/07/2026 07 AM PDT 8.93 1599 - Normal
06/07/2026 08 AM PDT 8.91 1586 - Normal
06/07/2026 09 AM PDT 8.89 1573 - Normal
06/07/2026 10 AM PDT 8.87 1560 - Normal
06/07/2026 11 AM PDT 8.85 1546 - Normal
06/07/2026 12 PM PDT 8.83 1533 - Normal
06/07/2026 01 PM PDT 8.81 1520 - Normal
06/07/2026 02 PM PDT 8.80 1514 - Normal
06/07/2026 03 PM PDT 8.78 1501 - Normal
06/07/2026 04 PM PDT 8.77 1495 - Normal
06/07/2026 05 PM PDT 8.75 1482 - Normal
06/07/2026 06 PM PDT 8.73 1469 - Normal
06/07/2026 07 PM PDT 8.72 1463 - Normal
06/07/2026 08 PM PDT 8.71 1456 - Normal
06/07/2026 09 PM PDT 8.69 1444 - Normal
06/07/2026 10 PM PDT 8.68 1437 - Normal
06/07/2026 11 PM PDT 8.67 1431 - Normal
06/08/2026 12 AM PDT 8.65 1418 - Normal
06/08/2026 01 AM PDT 8.64 1412 - Normal
06/08/2026 02 AM PDT 8.63 1406 - Normal
06/08/2026 03 AM PDT 8.62 1400 - Normal
06/08/2026 04 AM PDT 8.61 1393 - Normal
06/08/2026 05 AM PDT 8.60 1387 - Normal
06/08/2026 06 AM PDT 8.60 1387 0 Normal
06/08/2026 07 AM PDT 8.59 1381 - Normal
06/08/2026 08 AM PDT 8.58 1375 - Normal
06/08/2026 09 AM PDT 8.57 1368 - Normal
06/08/2026 10 AM PDT 8.56 1362 - Normal
06/08/2026 11 AM PDT 8.56 1362 0 Normal
06/08/2026 12 PM PDT 8.55 1356 - Normal
06/08/2026 01 PM PDT 8.54 1350 - Normal
06/08/2026 02 PM PDT 8.54 1350 0 Normal
06/08/2026 03 PM PDT 8.53 1344 - Normal
06/08/2026 04 PM PDT 8.53 1344 0 Normal
06/08/2026 05 PM PDT 8.52 1338 - Normal
06/08/2026 06 PM PDT 8.52 1338 0 Normal
06/08/2026 07 PM PDT 8.51 1331 - Normal
06/08/2026 08 PM PDT 8.51 1331 0 Normal
06/08/2026 09 PM PDT 8.50 1325 - Normal
06/08/2026 10 PM PDT 8.50 1325 0 Normal
06/08/2026 11 PM PDT 8.49 1319 - Normal
06/09/2026 12 AM PDT 8.49 1319 0 Normal
06/09/2026 01 AM PDT 8.49 1319 0 Normal
06/09/2026 02 AM PDT 8.48 1313 - Normal
06/09/2026 03 AM PDT 8.48 1313 0 Normal
06/09/2026 04 AM PDT 8.48 1313 0 Normal
06/09/2026 05 AM PDT 8.48 1313 0 Normal
06/09/2026 06 AM PDT 8.48 1313 0 Normal
06/09/2026 07 AM PDT 8.48 1313 0 Normal
06/09/2026 08 AM PDT 8.49 1319 + Normal
06/09/2026 09 AM PDT 8.50 1325 + Normal
06/09/2026 10 AM PDT 8.51 1331 + Normal
06/09/2026 11 AM PDT 8.53 1344 + Normal
06/09/2026 12 PM PDT 8.54 1350 + Normal
06/09/2026 01 PM PDT 8.56 1362 + Normal
06/09/2026 02 PM PDT 8.59 1381 + Normal
06/09/2026 03 PM PDT 8.61 1393 + Normal
06/09/2026 04 PM PDT 8.63 1406 + Normal
06/09/2026 05 PM PDT 8.65 1418 + Normal
06/09/2026 06 PM PDT 8.68 1437 + Normal
06/09/2026 07 PM PDT 8.70 1450 + Normal
06/09/2026 08 PM PDT 8.73 1469 + Normal
06/09/2026 09 PM PDT 8.75 1482 + Normal
06/09/2026 10 PM PDT 8.78 1501 + Normal
06/09/2026 11 PM PDT 8.80 1514 + Normal
06/10/2026 12 AM PDT 8.83 1533 + Normal
06/10/2026 01 AM PDT 8.85 1546 + Normal
06/10/2026 02 AM PDT 8.88 1566 + Normal
06/10/2026 03 AM PDT 8.90 1579 + Normal
06/10/2026 04 AM PDT 8.92 1592 + Normal
06/10/2026 05 AM PDT 8.94 1606 + Normal
06/10/2026 06 AM PDT 8.96 1619 + Normal
06/10/2026 07 AM PDT 8.98 1632 + Normal
06/10/2026 08 AM PDT 9.00 1646 + Normal
06/10/2026 09 AM PDT 9.02 1659 + Normal
06/10/2026 10 AM PDT 9.04 1672 + Normal
06/10/2026 11 AM PDT 9.05 1679 + Normal
06/10/2026 12 PM PDT 9.07 1693 + Normal
06/10/2026 01 PM PDT 9.09 1706 + Normal
06/10/2026 02 PM PDT 9.10 1713 + Normal
06/10/2026 03 PM PDT 9.12 1727 + Normal
06/10/2026 04 PM PDT 9.13 1734 + Normal
06/10/2026 05 PM PDT 9.14 1740 + Normal
06/10/2026 06 PM PDT 9.16 1754 + Normal
06/10/2026 07 PM PDT 9.17 1761 + Normal
06/10/2026 08 PM PDT 9.18 1768 + Normal
06/10/2026 09 PM PDT 9.19 1775 + Normal
06/10/2026 10 PM PDT 9.20 1782 + Normal
06/10/2026 11 PM PDT 9.21 1789 + Normal
06/11/2026 12 AM PDT 9.22 1796 + Normal
06/11/2026 01 AM PDT 9.23 1803 + Normal
06/11/2026 02 AM PDT 9.24 1810 + Normal
06/11/2026 03 AM PDT 9.25 1817 + Normal
06/11/2026 04 AM PDT 9.26 1824 + Normal
06/11/2026 05 AM PDT 9.26 1824 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.
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