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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: | Mar 02 2026 at 7:28 AM PST | Next Issuance: | Mar 02 2026 at 3:00 PM PST
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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: 03/02/2026 at 07:28 AM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 02/25/2026 at 07:00 AM PST
# Maximum Observed Stage: 15.68 Feet
# Maximum Observed Flow: 8128 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/02/2026 at 08:00 AM PST
# Maximum Forecast Stage: 14.59 Feet
# Maximum Forecast Flow: 6816 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
02/25/2026 07 AM PST 15.68 8128 Normal
02/25/2026 08 AM PST 15.66 8103 - Normal
02/25/2026 09 AM PST 15.65 8091 - Normal
02/25/2026 10 AM PST 15.65 8091 0 Normal
02/25/2026 11 AM PST 15.64 8078 - Normal
02/25/2026 12 PM PST 15.63 8066 - Normal
02/25/2026 01 PM PST 15.59 8016 - Normal
02/25/2026 02 PM PST 15.60 8029 + Normal
02/25/2026 03 PM PST 15.59 8016 - Normal
02/25/2026 04 PM PST 15.57 7991 - Normal
02/25/2026 05 PM PST 15.58 8004 + Normal
02/25/2026 06 PM PST 15.57 7991 - Normal
02/25/2026 07 PM PST 15.56 7979 - Normal
02/25/2026 08 PM PST 15.55 7967 - Normal
02/25/2026 09 PM PST 15.54 7954 - Normal
02/25/2026 10 PM PST 15.53 7942 - Normal
02/25/2026 11 PM PST 15.52 7929 - Normal
02/26/2026 12 AM PST 15.51 7917 - Normal
02/26/2026 01 AM PST 15.50 7905 - Normal
02/26/2026 02 AM PST 15.49 7892 - Normal
02/26/2026 03 AM PST 15.47 7868 - Normal
02/26/2026 04 AM PST 15.47 7868 0 Normal
02/26/2026 05 AM PST 15.46 7856 - Normal
02/26/2026 06 AM PST 15.45 7843 - Normal
02/26/2026 07 AM PST 15.42 7806 - Normal
02/26/2026 08 AM PST 15.43 7819 + Normal
02/26/2026 09 AM PST 15.41 7794 - Normal
02/26/2026 10 AM PST 15.40 7782 - Normal
02/26/2026 11 AM PST 15.38 7757 - Normal
02/26/2026 12 PM PST 15.38 7757 0 Normal
02/26/2026 01 PM PST 15.36 7733 - Normal
02/26/2026 02 PM PST 15.36 7733 0 Normal
02/26/2026 03 PM PST 15.35 7721 - Normal
02/26/2026 04 PM PST 15.35 7721 0 Normal
02/26/2026 05 PM PST 15.33 7696 - Normal
02/26/2026 06 PM PST 15.33 7696 0 Normal
02/26/2026 07 PM PST 15.33 7696 0 Normal
02/26/2026 08 PM PST 15.33 7696 0 Normal
02/26/2026 09 PM PST 15.32 7684 - Normal
02/26/2026 10 PM PST 15.30 7660 - Normal
02/26/2026 11 PM PST 15.29 7648 - Normal
02/27/2026 12 AM PST 15.29 7648 0 Normal
02/27/2026 01 AM PST 15.28 7635 - Normal
02/27/2026 02 AM PST 15.26 7611 - Normal
02/27/2026 03 AM PST 15.26 7611 0 Normal
02/27/2026 04 AM PST 15.24 7587 - Normal
02/27/2026 05 AM PST 15.23 7575 - Normal
02/27/2026 06 AM PST 15.22 7563 - Normal
02/27/2026 07 AM PST 15.22 7563 0 Normal
02/27/2026 08 AM PST 15.20 7538 - Normal
02/27/2026 09 AM PST 15.18 7514 - Normal
02/27/2026 10 AM PST 15.18 7514 0 Normal
02/27/2026 11 AM PST 15.16 7490 - Normal
02/27/2026 12 PM PST 15.16 7490 0 Normal
02/27/2026 01 PM PST 15.14 7466 - Normal
02/27/2026 02 PM PST 15.11 7430 - Normal
02/27/2026 03 PM PST 15.10 7418 - Normal
02/27/2026 04 PM PST 15.09 7406 - Normal
02/27/2026 05 PM PST 15.09 7406 0 Normal
02/27/2026 06 PM PST 15.09 7406 0 Normal
02/27/2026 07 PM PST 15.08 7394 - Normal
02/27/2026 08 PM PST 15.07 7382 - Normal
02/27/2026 09 PM PST 15.05 7358 - Normal
02/27/2026 10 PM PST 15.04 7346 - Normal
02/27/2026 11 PM PST 15.03 7334 - Normal
02/28/2026 12 AM PST 15.02 7322 - Normal
02/28/2026 01 AM PST 15.00 7298 - Normal
02/28/2026 02 AM PST 14.99 7286 - Normal
02/28/2026 03 AM PST 14.98 7275 - Normal
02/28/2026 04 AM PST 14.97 7263 - Normal
02/28/2026 05 AM PST 14.96 7251 - Normal
02/28/2026 06 AM PST 14.95 7239 - Normal
02/28/2026 07 AM PST 14.93 7215 - Normal
02/28/2026 08 AM PST 14.92 7203 - Normal
02/28/2026 09 AM PST 14.91 7191 - Normal
02/28/2026 10 AM PST 14.90 7180 - Normal
02/28/2026 11 AM PST 14.90 7180 0 Normal
02/28/2026 12 PM PST 14.89 7168 - Normal
02/28/2026 01 PM PST 14.88 7156 - Normal
02/28/2026 02 PM PST 14.87 7144 - Normal
02/28/2026 03 PM PST 14.86 7132 - Normal
02/28/2026 04 PM PST 14.85 7120 - Normal
02/28/2026 05 PM PST 14.85 7120 0 Normal
02/28/2026 06 PM PST 14.84 7109 - Normal
02/28/2026 07 PM PST 14.83 7097 - Normal
02/28/2026 08 PM PST 14.82 7085 - Normal
02/28/2026 09 PM PST 14.82 7085 0 Normal
02/28/2026 10 PM PST 14.81 7073 - Normal
02/28/2026 11 PM PST 14.80 7061 - Normal
03/01/2026 12 AM PST 14.80 7061 0 Normal
03/01/2026 01 AM PST 14.79 7050 - Normal
03/01/2026 02 AM PST 14.76 7015 - Normal
03/01/2026 03 AM PST 14.77 7026 + Normal
03/01/2026 04 AM PST 14.77 7026 0 Normal
03/01/2026 05 AM PST 14.75 7003 - Normal
03/01/2026 06 AM PST 14.74 6991 - Normal
03/01/2026 07 AM PST 14.74 6991 0 Normal
03/01/2026 08 AM PST 14.73 6979 - Normal
03/01/2026 09 AM PST 14.73 6979 0 Normal
03/01/2026 10 AM PST 14.71 6956 - Normal
03/01/2026 11 AM PST 14.70 6944 - Normal
03/01/2026 12 PM PST 14.70 6944 0 Normal
03/01/2026 01 PM PST 14.70 6944 0 Normal
03/01/2026 02 PM PST 14.69 6933 - Normal
03/01/2026 03 PM PST 14.69 6933 0 Normal
03/01/2026 04 PM PST 14.67 6909 - Normal
03/01/2026 05 PM PST 14.66 6898 - Normal
03/01/2026 06 PM PST 14.64 6874 - Normal
03/01/2026 07 PM PST 14.66 6898 + Normal
03/01/2026 08 PM PST 14.66 6898 0 Normal
03/01/2026 09 PM PST 14.66 6898 0 Normal
03/01/2026 10 PM PST 14.62 6851 - Normal
03/01/2026 11 PM PST 14.63 6863 + Normal
03/02/2026 12 AM PST 14.62 6851 - Normal
03/02/2026 01 AM PST 14.62 6851 0 Normal
03/02/2026 02 AM PST 14.64 6874 + Normal
03/02/2026 03 AM PST 14.62 6851 - Normal
03/02/2026 04 AM PST 14.62 6851 0 Normal
03/02/2026 05 AM PST 14.61 6840 - Normal
03/02/2026 06 AM PST 14.61 6840 0 Normal
03/02/2026 07 AM PST 14.60 6828 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/02/2026 08 AM PST 14.59 6816 Normal
03/02/2026 09 AM PST 14.59 6816 0 Normal
03/02/2026 10 AM PST 14.58 6805 - Normal
03/02/2026 11 AM PST 14.57 6793 - Normal
03/02/2026 12 PM PST 14.57 6793 0 Normal
03/02/2026 01 PM PST 14.56 6782 - Normal
03/02/2026 02 PM PST 14.55 6770 - Normal
03/02/2026 03 PM PST 14.55 6770 0 Normal
03/02/2026 04 PM PST 14.54 6759 - Normal
03/02/2026 05 PM PST 14.54 6759 0 Normal
03/02/2026 06 PM PST 14.53 6747 - Normal
03/02/2026 07 PM PST 14.52 6735 - Normal
03/02/2026 08 PM PST 14.52 6735 0 Normal
03/02/2026 09 PM PST 14.51 6724 - Normal
03/02/2026 10 PM PST 14.50 6712 - Normal
03/02/2026 11 PM PST 14.50 6712 0 Normal
03/03/2026 12 AM PST 14.49 6701 - Normal
03/03/2026 01 AM PST 14.49 6701 0 Normal
03/03/2026 02 AM PST 14.48 6689 - Normal
03/03/2026 03 AM PST 14.47 6678 - Normal
03/03/2026 04 AM PST 14.47 6678 0 Normal
03/03/2026 05 AM PST 14.46 6666 - Normal
03/03/2026 06 AM PST 14.46 6666 0 Normal
03/03/2026 07 AM PST 14.45 6655 - Normal
03/03/2026 08 AM PST 14.45 6655 0 Normal
03/03/2026 09 AM PST 14.44 6643 - Normal
03/03/2026 10 AM PST 14.43 6632 - Normal
03/03/2026 11 AM PST 14.43 6632 0 Normal
03/03/2026 12 PM PST 14.42 6621 - Normal
03/03/2026 01 PM PST 14.41 6609 - Normal
03/03/2026 02 PM PST 14.41 6609 0 Normal
03/03/2026 03 PM PST 14.40 6598 - Normal
03/03/2026 04 PM PST 14.39 6586 - Normal
03/03/2026 05 PM PST 14.39 6586 0 Normal
03/03/2026 06 PM PST 14.38 6575 - Normal
03/03/2026 07 PM PST 14.37 6563 - Normal
03/03/2026 08 PM PST 14.37 6563 0 Normal
03/03/2026 09 PM PST 14.36 6552 - Normal
03/03/2026 10 PM PST 14.35 6541 - Normal
03/03/2026 11 PM PST 14.34 6529 - Normal
03/04/2026 12 AM PST 14.33 6518 - Normal
03/04/2026 01 AM PST 14.33 6518 0 Normal
03/04/2026 02 AM PST 14.32 6507 - Normal
03/04/2026 03 AM PST 14.31 6495 - Normal
03/04/2026 04 AM PST 14.30 6484 - Normal
03/04/2026 05 AM PST 14.29 6473 - Normal
03/04/2026 06 AM PST 14.28 6461 - Normal
03/04/2026 07 AM PST 14.27 6450 - Normal
03/04/2026 08 AM PST 14.27 6450 0 Normal
03/04/2026 09 AM PST 14.26 6439 - Normal
03/04/2026 10 AM PST 14.25 6427 - Normal
03/04/2026 11 AM PST 14.24 6416 - Normal
03/04/2026 12 PM PST 14.23 6405 - Normal
03/04/2026 01 PM PST 14.22 6393 - Normal
03/04/2026 02 PM PST 14.21 6382 - Normal
03/04/2026 03 PM PST 14.20 6371 - Normal
03/04/2026 04 PM PST 14.20 6371 0 Normal
03/04/2026 05 PM PST 14.19 6360 - Normal
03/04/2026 06 PM PST 14.18 6348 - Normal
03/04/2026 07 PM PST 14.17 6337 - Normal
03/04/2026 08 PM PST 14.16 6326 - Normal
03/04/2026 09 PM PST 14.15 6315 - Normal
03/04/2026 10 PM PST 14.14 6303 - Normal
03/04/2026 11 PM PST 14.13 6292 - Normal
03/05/2026 12 AM PST 14.13 6292 0 Normal
03/05/2026 01 AM PST 14.12 6281 - Normal
03/05/2026 02 AM PST 14.11 6270 - Normal
03/05/2026 03 AM PST 14.10 6259 - Normal
03/05/2026 04 AM PST 14.10 6259 0 Normal
03/05/2026 05 AM PST 14.09 6247 - Normal
03/05/2026 06 AM PST 14.08 6236 - Normal
03/05/2026 07 AM PST 14.07 6225 - Normal
03/05/2026 08 AM PST 14.07 6225 0 Normal
03/05/2026 09 AM PST 14.06 6214 - Normal
03/05/2026 10 AM PST 14.05 6203 - Normal
03/05/2026 11 AM PST 14.04 6192 - Normal
03/05/2026 12 PM PST 14.04 6192 0 Normal
03/05/2026 01 PM PST 14.03 6181 - Normal
03/05/2026 02 PM PST 14.03 6181 0 Normal
03/05/2026 03 PM PST 14.02 6170 - Normal
03/05/2026 04 PM PST 14.01 6158 - Normal
03/05/2026 05 PM PST 14.01 6158 0 Normal
03/05/2026 06 PM PST 14.00 6147 - Normal
03/05/2026 07 PM PST 13.99 6136 - Normal
03/05/2026 08 PM PST 13.99 6136 0 Normal
03/05/2026 09 PM PST 13.98 6125 - Normal
03/05/2026 10 PM PST 13.98 6125 0 Normal
03/05/2026 11 PM PST 13.97 6114 - Normal
03/06/2026 12 AM PST 13.97 6114 0 Normal
03/06/2026 01 AM PST 13.96 6103 - Normal
03/06/2026 02 AM PST 13.96 6103 0 Normal
03/06/2026 03 AM PST 13.95 6092 - Normal
03/06/2026 04 AM PST 13.95 6092 0 Normal
03/06/2026 05 AM PST 13.94 6081 - Normal
03/06/2026 06 AM PST 13.94 6081 0 Normal
03/06/2026 07 AM PST 13.93 6070 - Normal
03/06/2026 08 AM PST 13.93 6070 0 Normal
03/06/2026 09 AM PST 13.93 6070 0 Normal
03/06/2026 10 AM PST 13.92 6059 - Normal
03/06/2026 11 AM PST 13.92 6059 0 Normal
03/06/2026 12 PM PST 13.91 6048 - Normal
03/06/2026 01 PM PST 13.91 6048 0 Normal
03/06/2026 02 PM PST 13.90 6037 - Normal
03/06/2026 03 PM PST 13.90 6037 0 Normal
03/06/2026 04 PM PST 13.90 6037 0 Normal
03/06/2026 05 PM PST 13.89 6026 - Normal
03/06/2026 06 PM PST 13.89 6026 0 Normal
03/06/2026 07 PM PST 13.89 6026 0 Normal
03/06/2026 08 PM PST 13.88 6015 - Normal
03/06/2026 09 PM PST 13.88 6015 0 Normal
03/06/2026 10 PM PST 13.88 6015 0 Normal
03/06/2026 11 PM PST 13.87 6004 - Normal
03/07/2026 12 AM PST 13.87 6004 0 Normal
03/07/2026 01 AM PST 13.87 6004 0 Normal
03/07/2026 02 AM PST 13.86 5993 - Normal
03/07/2026 03 AM PST 13.86 5993 0 Normal
03/07/2026 04 AM PST 13.86 5993 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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