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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: | Apr 03 2026 at 7:45 AM PDT | Next Issuance: | Apr 03 2026 at 3:00 PM 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: 04/03/2026 at 07:45 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/01/2026 at 09:00 PM PDT
# Maximum Observed Stage: 9.83 Feet
# Maximum Observed Flow: 2241 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/04/2026 at 07:00 PM PDT
# Maximum Forecast Stage: 10.01 Feet
# Maximum Forecast Flow: 2380 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/29/2026 07 AM PDT 9.44 1951 Normal
03/29/2026 08 AM PDT 9.44 1951 0 Normal
03/29/2026 09 AM PDT 9.44 1951 0 Normal
03/29/2026 10 AM PDT 9.44 1951 0 Normal
03/29/2026 11 AM PDT 9.45 1959 + Normal
03/29/2026 12 PM PDT 9.44 1951 - Normal
03/29/2026 01 PM PDT 9.44 1951 0 Normal
03/29/2026 02 PM PDT 9.44 1951 0 Normal
03/29/2026 03 PM PDT 9.45 1959 + Normal
03/29/2026 04 PM PDT 9.43 1944 - Normal
03/29/2026 05 PM PDT 9.43 1944 0 Normal
03/29/2026 06 PM PDT 9.45 1959 + Normal
03/29/2026 07 PM PDT 9.45 1959 0 Normal
03/29/2026 08 PM PDT 9.43 1944 - Normal
03/29/2026 09 PM PDT 9.43 1944 0 Normal
03/29/2026 10 PM PDT 9.42 1937 - Normal
03/29/2026 11 PM PDT 9.41 1930 - Normal
03/30/2026 12 AM PDT 9.40 1923 - Normal
03/30/2026 01 AM PDT 9.39 1916 - Normal
03/30/2026 02 AM PDT 9.39 1916 0 Normal
03/30/2026 03 AM PDT 9.38 1908 - Normal
03/30/2026 04 AM PDT 9.38 1908 0 Normal
03/30/2026 05 AM PDT 9.38 1908 0 Normal
03/30/2026 06 AM PDT 9.38 1908 0 Normal
03/30/2026 07 AM PDT 9.37 1901 - Normal
03/30/2026 08 AM PDT 9.36 1894 - Normal
03/30/2026 09 AM PDT 9.34 1880 - Normal
03/30/2026 10 AM PDT 9.32 1866 - Normal
03/30/2026 11 AM PDT 9.30 1852 - Normal
03/30/2026 12 PM PDT 9.28 1838 - Normal
03/30/2026 01 PM PDT 9.26 1824 - Normal
03/30/2026 02 PM PDT 9.24 1810 - Normal
03/30/2026 03 PM PDT 9.23 1803 - Normal
03/30/2026 04 PM PDT 9.22 1796 - Normal
03/30/2026 05 PM PDT 9.22 1796 0 Normal
03/30/2026 06 PM PDT 9.19 1775 - Normal
03/30/2026 07 PM PDT 9.22 1796 + Normal
03/30/2026 08 PM PDT 9.23 1803 + Normal
03/30/2026 09 PM PDT 9.24 1810 + Normal
03/30/2026 10 PM PDT 9.24 1810 0 Normal
03/30/2026 11 PM PDT 9.25 1817 + Normal
03/31/2026 12 AM PDT 9.26 1824 + Normal
03/31/2026 01 AM PDT 9.26 1824 0 Normal
03/31/2026 02 AM PDT 9.27 1831 + Normal
03/31/2026 03 AM PDT 9.28 1838 + Normal
03/31/2026 04 AM PDT 9.30 1852 + Normal
03/31/2026 05 AM PDT 9.32 1866 + Normal
03/31/2026 06 AM PDT 9.33 1873 + Normal
03/31/2026 07 AM PDT 9.33 1873 0 Normal
03/31/2026 08 AM PDT 9.35 1887 + Normal
03/31/2026 09 AM PDT 9.34 1880 - Normal
03/31/2026 10 AM PDT 9.34 1880 0 Normal
03/31/2026 11 AM PDT 9.32 1866 - Normal
03/31/2026 12 PM PDT 9.32 1866 0 Normal
03/31/2026 01 PM PDT 9.31 1859 - Normal
03/31/2026 02 PM PDT 9.29 1845 - Normal
03/31/2026 03 PM PDT 9.30 1852 + Normal
03/31/2026 04 PM PDT 9.30 1852 0 Normal
03/31/2026 05 PM PDT 9.31 1859 + Normal
03/31/2026 06 PM PDT 9.30 1852 - Normal
03/31/2026 07 PM PDT 9.29 1845 - Normal
03/31/2026 08 PM PDT 9.30 1852 + Normal
03/31/2026 09 PM PDT 9.32 1866 + Normal
03/31/2026 10 PM PDT 9.32 1866 0 Normal
03/31/2026 11 PM PDT 9.34 1880 + Normal
04/01/2026 12 AM PDT 9.37 1901 + Normal
04/01/2026 01 AM PDT 9.39 1916 + Normal
04/01/2026 02 AM PDT 9.41 1930 + Normal
04/01/2026 03 AM PDT 9.43 1944 + Normal
04/01/2026 04 AM PDT 9.45 1959 + Normal
04/01/2026 05 AM PDT 9.47 1973 + Normal
04/01/2026 06 AM PDT 9.50 1995 + Normal
04/01/2026 07 AM PDT 9.51 2002 + Normal
04/01/2026 08 AM PDT 9.53 2017 + Normal
04/01/2026 09 AM PDT 9.54 2024 + Normal
04/01/2026 10 AM PDT 9.53 2017 - Normal
04/01/2026 11 AM PDT 9.57 2046 + Normal
04/01/2026 12 PM PDT 9.62 2083 + Normal
04/01/2026 01 PM PDT 9.64 2098 + Normal
04/01/2026 02 PM PDT 9.70 2143 + Normal
04/01/2026 03 PM PDT 9.70 2143 0 Normal
04/01/2026 04 PM PDT 9.75 2180 + Normal
04/01/2026 05 PM PDT 9.78 2203 + Normal
04/01/2026 06 PM PDT 9.81 2226 + Normal
04/01/2026 07 PM PDT 9.82 2233 + Normal
04/01/2026 08 PM PDT 9.83 2241 + Normal
04/01/2026 09 PM PDT 9.83 2241 0 Normal
04/01/2026 10 PM PDT 9.82 2233 - Normal
04/01/2026 11 PM PDT 9.81 2226 - Normal
04/02/2026 12 AM PDT 9.80 2218 - Normal
04/02/2026 01 AM PDT 9.78 2203 - Normal
04/02/2026 02 AM PDT 9.78 2203 0 Normal
04/02/2026 03 AM PDT 9.74 2173 - Normal
04/02/2026 04 AM PDT 9.76 2188 + Normal
04/02/2026 05 AM PDT 9.77 2195 + Normal
04/02/2026 06 AM PDT 9.77 2195 0 Normal
04/02/2026 07 AM PDT 9.77 2195 0 Normal
04/02/2026 08 AM PDT 9.77 2195 0 Normal
04/02/2026 09 AM PDT 9.75 2180 - Normal
04/02/2026 10 AM PDT 9.74 2173 - Normal
04/02/2026 11 AM PDT 9.71 2150 - Normal
04/02/2026 12 PM PDT 9.71 2150 0 Normal
04/02/2026 01 PM PDT 9.71 2150 0 Normal
04/02/2026 02 PM PDT 9.70 2143 - Normal
04/02/2026 03 PM PDT 9.70 2143 0 Normal
04/02/2026 04 PM PDT 9.67 2120 - Normal
04/02/2026 05 PM PDT 9.67 2120 0 Normal
04/02/2026 06 PM PDT 9.66 2113 - Normal
04/02/2026 07 PM PDT 9.68 2128 + Normal
04/02/2026 08 PM PDT 9.72 2158 + Normal
04/02/2026 09 PM PDT 9.72 2158 0 Normal
04/02/2026 10 PM PDT 9.72 2158 0 Normal
04/02/2026 11 PM PDT 9.73 2165 + Normal
04/03/2026 12 AM PDT 9.73 2165 0 Normal
04/03/2026 01 AM PDT 9.75 2180 + Normal
04/03/2026 02 AM PDT 9.76 2188 + Normal
04/03/2026 03 AM PDT 9.76 2188 0 Normal
04/03/2026 04 AM PDT 9.79 2210 + Normal
04/03/2026 05 AM PDT 9.79 2210 0 Normal
04/03/2026 06 AM PDT 9.80 2218 + Normal
04/03/2026 07 AM PDT 9.82 2233 + Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/03/2026 08 AM PDT 9.83 2241 Normal
04/03/2026 09 AM PDT 9.84 2249 + Normal
04/03/2026 10 AM PDT 9.85 2256 + Normal
04/03/2026 11 AM PDT 9.86 2264 + Normal
04/03/2026 12 PM PDT 9.87 2272 + Normal
04/03/2026 01 PM PDT 9.88 2279 + Normal
04/03/2026 02 PM PDT 9.89 2287 + Normal
04/03/2026 03 PM PDT 9.90 2295 + Normal
04/03/2026 04 PM PDT 9.90 2295 0 Normal
04/03/2026 05 PM PDT 9.91 2302 + Normal
04/03/2026 06 PM PDT 9.92 2310 + Normal
04/03/2026 07 PM PDT 9.93 2318 + Normal
04/03/2026 08 PM PDT 9.93 2318 0 Normal
04/03/2026 09 PM PDT 9.94 2326 + Normal
04/03/2026 10 PM PDT 9.94 2326 0 Normal
04/03/2026 11 PM PDT 9.95 2333 + Normal
04/04/2026 12 AM PDT 9.95 2333 0 Normal
04/04/2026 01 AM PDT 9.96 2341 + Normal
04/04/2026 02 AM PDT 9.96 2341 0 Normal
04/04/2026 03 AM PDT 9.97 2349 + Normal
04/04/2026 04 AM PDT 9.97 2349 0 Normal
04/04/2026 05 AM PDT 9.97 2349 0 Normal
04/04/2026 06 AM PDT 9.98 2357 + Normal
04/04/2026 07 AM PDT 9.98 2357 0 Normal
04/04/2026 08 AM PDT 9.98 2357 0 Normal
04/04/2026 09 AM PDT 9.99 2365 + Normal
04/04/2026 10 AM PDT 9.99 2365 0 Normal
04/04/2026 11 AM PDT 9.99 2365 0 Normal
04/04/2026 12 PM PDT 9.99 2365 0 Normal
04/04/2026 01 PM PDT 10.00 2373 + Normal
04/04/2026 02 PM PDT 10.00 2373 0 Normal
04/04/2026 03 PM PDT 10.00 2373 0 Normal
04/04/2026 04 PM PDT 10.00 2373 0 Normal
04/04/2026 05 PM PDT 10.00 2373 0 Normal
04/04/2026 06 PM PDT 10.00 2373 0 Normal
04/04/2026 07 PM PDT 10.01 2380 + Normal
04/04/2026 08 PM PDT 10.01 2380 0 Normal
04/04/2026 09 PM PDT 10.01 2380 0 Normal
04/04/2026 10 PM PDT 10.01 2380 0 Normal
04/04/2026 11 PM PDT 10.01 2380 0 Normal
04/05/2026 12 AM PDT 10.01 2380 0 Normal
04/05/2026 01 AM PDT 10.01 2380 0 Normal
04/05/2026 02 AM PDT 10.01 2380 0 Normal
04/05/2026 03 AM PDT 10.01 2380 0 Normal
04/05/2026 04 AM PDT 10.01 2380 0 Normal
04/05/2026 05 AM PDT 10.01 2380 0 Normal
04/05/2026 06 AM PDT 10.01 2380 0 Normal
04/05/2026 07 AM PDT 10.01 2380 0 Normal
04/05/2026 08 AM PDT 10.01 2380 0 Normal
04/05/2026 09 AM PDT 10.01 2380 0 Normal
04/05/2026 10 AM PDT 10.01 2380 0 Normal
04/05/2026 11 AM PDT 10.01 2380 0 Normal
04/05/2026 12 PM PDT 10.01 2380 0 Normal
04/05/2026 01 PM PDT 10.01 2380 0 Normal
04/05/2026 02 PM PDT 10.01 2380 0 Normal
04/05/2026 03 PM PDT 10.01 2380 0 Normal
04/05/2026 04 PM PDT 10.01 2380 0 Normal
04/05/2026 05 PM PDT 10.01 2380 0 Normal
04/05/2026 06 PM PDT 10.01 2380 0 Normal
04/05/2026 07 PM PDT 10.01 2380 0 Normal
04/05/2026 08 PM PDT 10.01 2380 0 Normal
04/05/2026 09 PM PDT 10.01 2380 0 Normal
04/05/2026 10 PM PDT 10.00 2373 - Normal
04/05/2026 11 PM PDT 10.00 2373 0 Normal
04/06/2026 12 AM PDT 10.00 2373 0 Normal
04/06/2026 01 AM PDT 10.00 2373 0 Normal
04/06/2026 02 AM PDT 10.00 2373 0 Normal
04/06/2026 03 AM PDT 10.00 2373 0 Normal
04/06/2026 04 AM PDT 10.00 2373 0 Normal
04/06/2026 05 AM PDT 9.99 2365 - Normal
04/06/2026 06 AM PDT 9.99 2365 0 Normal
04/06/2026 07 AM PDT 9.99 2365 0 Normal
04/06/2026 08 AM PDT 9.99 2365 0 Normal
04/06/2026 09 AM PDT 9.99 2365 0 Normal
04/06/2026 10 AM PDT 9.99 2365 0 Normal
04/06/2026 11 AM PDT 9.99 2365 0 Normal
04/06/2026 12 PM PDT 9.98 2357 - Normal
04/06/2026 01 PM PDT 9.98 2357 0 Normal
04/06/2026 02 PM PDT 9.98 2357 0 Normal
04/06/2026 03 PM PDT 9.98 2357 0 Normal
04/06/2026 04 PM PDT 9.98 2357 0 Normal
04/06/2026 05 PM PDT 9.98 2357 0 Normal
04/06/2026 06 PM PDT 9.97 2349 - Normal
04/06/2026 07 PM PDT 9.97 2349 0 Normal
04/06/2026 08 PM PDT 9.97 2349 0 Normal
04/06/2026 09 PM PDT 9.97 2349 0 Normal
04/06/2026 10 PM PDT 9.97 2349 0 Normal
04/06/2026 11 PM PDT 9.97 2349 0 Normal
04/07/2026 12 AM PDT 9.96 2341 - Normal
04/07/2026 01 AM PDT 9.96 2341 0 Normal
04/07/2026 02 AM PDT 9.96 2341 0 Normal
04/07/2026 03 AM PDT 9.96 2341 0 Normal
04/07/2026 04 AM PDT 9.96 2341 0 Normal
04/07/2026 05 AM PDT 9.96 2341 0 Normal
04/07/2026 06 AM PDT 9.95 2333 - Normal
04/07/2026 07 AM PDT 9.95 2333 0 Normal
04/07/2026 08 AM PDT 9.95 2333 0 Normal
04/07/2026 09 AM PDT 9.95 2333 0 Normal
04/07/2026 10 AM PDT 9.95 2333 0 Normal
04/07/2026 11 AM PDT 9.95 2333 0 Normal
04/07/2026 12 PM PDT 9.94 2326 - Normal
04/07/2026 01 PM PDT 9.94 2326 0 Normal
04/07/2026 02 PM PDT 9.94 2326 0 Normal
04/07/2026 03 PM PDT 9.94 2326 0 Normal
04/07/2026 04 PM PDT 9.94 2326 0 Normal
04/07/2026 05 PM PDT 9.93 2318 - Normal
04/07/2026 06 PM PDT 9.93 2318 0 Normal
04/07/2026 07 PM PDT 9.93 2318 0 Normal
04/07/2026 08 PM PDT 9.93 2318 0 Normal
04/07/2026 09 PM PDT 9.93 2318 0 Normal
04/07/2026 10 PM PDT 9.93 2318 0 Normal
04/07/2026 11 PM PDT 9.92 2310 - Normal
04/08/2026 12 AM PDT 9.92 2310 0 Normal
04/08/2026 01 AM PDT 9.92 2310 0 Normal
04/08/2026 02 AM PDT 9.92 2310 0 Normal
04/08/2026 03 AM PDT 9.92 2310 0 Normal
04/08/2026 04 AM PDT 9.92 2310 0 Normal
04/08/2026 05 AM PDT 9.91 2302 - 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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