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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 27 2026 at 7:49 AM PDT | Next Issuance: | Jun 28 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: 06/27/2026 at 07:49 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: 06/27/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 8.91 Feet
# Maximum Forecast Flow: 1586 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
06/22/2026 07 AM PDT 8.44 1289 Normal
06/22/2026 08 AM PDT 8.40 1265 - Normal
06/22/2026 09 AM PDT 8.39 1259 - Normal
06/22/2026 10 AM PDT 8.36 1241 - Normal
06/22/2026 11 AM PDT 8.34 1229 - Normal
06/22/2026 12 PM PDT 8.32 1217 - Normal
06/22/2026 01 PM PDT 8.30 1205 - Normal
06/22/2026 02 PM PDT 8.27 1188 - Normal
06/22/2026 03 PM PDT 8.26 1182 - Normal
06/22/2026 04 PM PDT 8.23 1165 - Normal
06/22/2026 05 PM PDT 8.21 1153 - Normal
06/22/2026 06 PM PDT 8.18 1136 - Normal
06/22/2026 07 PM PDT 8.18 1136 0 Normal
06/22/2026 08 PM PDT 8.16 1124 - Normal
06/22/2026 09 PM PDT 8.13 1107 - Normal
06/22/2026 10 PM PDT 8.10 1090 - Normal
06/22/2026 11 PM PDT 8.11 1096 + Normal
06/23/2026 12 AM PDT 8.12 1102 + Normal
06/23/2026 01 AM PDT 8.12 1102 0 Normal
06/23/2026 02 AM PDT 8.11 1096 - Normal
06/23/2026 03 AM PDT 8.10 1090 - Normal
06/23/2026 04 AM PDT 8.09 1085 - Normal
06/23/2026 05 AM PDT 8.07 1074 - Normal
06/23/2026 06 AM PDT 8.07 1074 0 Normal
06/23/2026 07 AM PDT 8.06 1068 - Normal
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 8.95 1612 - Normal
06/27/2026 07 AM PDT 8.93 1599 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
06/27/2026 08 AM PDT 8.91 1586 Normal
06/27/2026 09 AM PDT 8.89 1573 - Normal
06/27/2026 10 AM PDT 8.87 1560 - Normal
06/27/2026 11 AM PDT 8.84 1540 - Normal
06/27/2026 12 PM PDT 8.81 1520 - Normal
06/27/2026 01 PM PDT 8.79 1508 - Normal
06/27/2026 02 PM PDT 8.76 1488 - Normal
06/27/2026 03 PM PDT 8.73 1469 - Normal
06/27/2026 04 PM PDT 8.70 1450 - Normal
06/27/2026 05 PM PDT 8.67 1431 - Normal
06/27/2026 06 PM PDT 8.64 1412 - Normal
06/27/2026 07 PM PDT 8.60 1387 - Normal
06/27/2026 08 PM PDT 8.57 1368 - Normal
06/27/2026 09 PM PDT 8.54 1350 - Normal
06/27/2026 10 PM PDT 8.51 1331 - Normal
06/27/2026 11 PM PDT 8.48 1313 - Normal
06/28/2026 12 AM PDT 8.45 1295 - Normal
06/28/2026 01 AM PDT 8.42 1277 - Normal
06/28/2026 02 AM PDT 8.40 1265 - Normal
06/28/2026 03 AM PDT 8.37 1247 - Normal
06/28/2026 04 AM PDT 8.34 1229 - Normal
06/28/2026 05 AM PDT 8.32 1217 - Normal
06/28/2026 06 AM PDT 8.29 1200 - Normal
06/28/2026 07 AM PDT 8.27 1188 - Normal
06/28/2026 08 AM PDT 8.25 1176 - Normal
06/28/2026 09 AM PDT 8.22 1159 - Normal
06/28/2026 10 AM PDT 8.20 1147 - Normal
06/28/2026 11 AM PDT 8.19 1142 - Normal
06/28/2026 12 PM PDT 8.17 1130 - Normal
06/28/2026 01 PM PDT 8.15 1119 - Normal
06/28/2026 02 PM PDT 8.13 1107 - Normal
06/28/2026 03 PM PDT 8.11 1096 - Normal
06/28/2026 04 PM PDT 8.10 1090 - Normal
06/28/2026 05 PM PDT 8.08 1079 - Normal
06/28/2026 06 PM PDT 8.07 1074 - Normal
06/28/2026 07 PM PDT 8.06 1068 - Normal
06/28/2026 08 PM PDT 8.04 1057 - Normal
06/28/2026 09 PM PDT 8.03 1051 - Normal
06/28/2026 10 PM PDT 8.02 1046 - Normal
06/28/2026 11 PM PDT 8.01 1040 - Normal
06/29/2026 12 AM PDT 8.00 1035 - Normal
06/29/2026 01 AM PDT 7.99 1029 - Normal
06/29/2026 02 AM PDT 7.99 1029 0 Normal
06/29/2026 03 AM PDT 7.98 1024 - Normal
06/29/2026 04 AM PDT 7.97 1018 - Normal
06/29/2026 05 AM PDT 7.96 1013 - Normal
06/29/2026 06 AM PDT 7.96 1013 0 Normal
06/29/2026 07 AM PDT 7.95 1007 - Normal
06/29/2026 08 AM PDT 7.95 1007 0 Normal
06/29/2026 09 AM PDT 7.94 1002 - Normal
06/29/2026 10 AM PDT 7.94 1002 0 Normal
06/29/2026 11 AM PDT 7.93 997 - Normal
06/29/2026 12 PM PDT 7.93 997 0 Normal
06/29/2026 01 PM PDT 7.93 997 0 Normal
06/29/2026 02 PM PDT 7.92 991 - Normal
06/29/2026 03 PM PDT 7.92 991 0 Normal
06/29/2026 04 PM PDT 7.92 991 0 Normal
06/29/2026 05 PM PDT 7.92 991 0 Normal
06/29/2026 06 PM PDT 7.91 986 - Normal
06/29/2026 07 PM PDT 7.91 986 0 Normal
06/29/2026 08 PM PDT 7.91 986 0 Normal
06/29/2026 09 PM PDT 7.90 980 - Normal
06/29/2026 10 PM PDT 7.89 975 - Normal
06/29/2026 11 PM PDT 7.89 975 0 Normal
06/30/2026 12 AM PDT 7.88 970 - Normal
06/30/2026 01 AM PDT 7.87 964 - Normal
06/30/2026 02 AM PDT 7.86 959 - Normal
06/30/2026 03 AM PDT 7.85 954 - Normal
06/30/2026 04 AM PDT 7.83 943 - Normal
06/30/2026 05 AM PDT 7.82 938 - Normal
06/30/2026 06 AM PDT 7.81 933 - Normal
06/30/2026 07 AM PDT 7.80 927 - Normal
06/30/2026 08 AM PDT 7.79 922 - Normal
06/30/2026 09 AM PDT 7.78 917 - Normal
06/30/2026 10 AM PDT 7.77 912 - Normal
06/30/2026 11 AM PDT 7.76 906 - Normal
06/30/2026 12 PM PDT 7.75 901 - Normal
06/30/2026 01 PM PDT 7.73 891 - Normal
06/30/2026 02 PM PDT 7.72 886 - Normal
06/30/2026 03 PM PDT 7.71 881 - Normal
06/30/2026 04 PM PDT 7.70 876 - Normal
06/30/2026 05 PM PDT 7.70 876 0 Normal
06/30/2026 06 PM PDT 7.69 870 - Normal
06/30/2026 07 PM PDT 7.68 865 - Normal
06/30/2026 08 PM PDT 7.67 860 - Normal
06/30/2026 09 PM PDT 7.66 855 - Normal
06/30/2026 10 PM PDT 7.65 850 - Normal
06/30/2026 11 PM PDT 7.64 845 - Normal
07/01/2026 12 AM PDT 7.63 840 - Normal
07/01/2026 01 AM PDT 7.62 835 - Normal
07/01/2026 02 AM PDT 7.61 830 - Normal
07/01/2026 03 AM PDT 7.60 825 - Normal
07/01/2026 04 AM PDT 7.59 820 - Normal
07/01/2026 05 AM PDT 7.58 815 - Normal
07/01/2026 06 AM PDT 7.57 810 - Normal
07/01/2026 07 AM PDT 7.55 800 - Normal
07/01/2026 08 AM PDT 7.54 795 - Normal
07/01/2026 09 AM PDT 7.53 790 - Normal
07/01/2026 10 AM PDT 7.51 781 - Normal
07/01/2026 11 AM PDT 7.50 776 - Normal
07/01/2026 12 PM PDT 7.48 766 - Normal
07/01/2026 01 PM PDT 7.47 761 - Normal
07/01/2026 02 PM PDT 7.45 752 - Normal
07/01/2026 03 PM PDT 7.44 747 - Normal
07/01/2026 04 PM PDT 7.43 742 - Normal
07/01/2026 05 PM PDT 7.41 733 - Normal
07/01/2026 06 PM PDT 7.40 728 - Normal
07/01/2026 07 PM PDT 7.38 718 - Normal
07/01/2026 08 PM PDT 7.37 714 - Normal
07/01/2026 09 PM PDT 7.36 709 - Normal
07/01/2026 10 PM PDT 7.35 704 - Normal
07/01/2026 11 PM PDT 7.34 700 - Normal
07/02/2026 12 AM PDT 7.33 695 - Normal
07/02/2026 01 AM PDT 7.31 686 - Normal
07/02/2026 02 AM PDT 7.30 681 - Normal
07/02/2026 03 AM PDT 7.29 677 - Normal
07/02/2026 04 AM PDT 7.28 672 - Normal
07/02/2026 05 AM PDT 7.28 672 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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