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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: | Oct 24 2026 at 1:17 PM PDT | Next Issuance: | Oct 25 2026 at 9:00 AM PDT
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| Action: 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: 10/24/2026 at 01:17 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 10/19/2026 at 01:00 PM PDT
# Maximum Observed Stage: 10.16 Feet
# Maximum Observed Flow: 2499 cfs
#
# Earliest Date & Time of Maximum Forecast: 10/24/2026 at 09:00 PM PDT
# Maximum Forecast Stage: 10.11 Feet
# Maximum Forecast Flow: 2459 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
10/19/2026 01 PM PDT 10.16 2499 Normal
10/19/2026 02 PM PDT 10.15 2491 - Normal
10/19/2026 03 PM PDT 10.10 2451 - Normal
10/19/2026 04 PM PDT 10.08 2436 - Normal
10/19/2026 05 PM PDT 10.04 2404 - Normal
10/19/2026 06 PM PDT 10.01 2380 - Normal
10/19/2026 07 PM PDT 9.98 2357 - Normal
10/19/2026 08 PM PDT 9.97 2349 - Normal
10/19/2026 09 PM PDT 9.93 2318 - Normal
10/19/2026 10 PM PDT 9.90 2295 - Normal
10/19/2026 11 PM PDT 9.87 2272 - Normal
10/20/2026 12 AM PDT 9.85 2256 - Normal
10/20/2026 01 AM PDT 9.84 2249 - Normal
10/20/2026 02 AM PDT 9.83 2241 - Normal
10/20/2026 03 AM PDT 9.82 2233 - Normal
10/20/2026 04 AM PDT 9.81 2226 - Normal
10/20/2026 05 AM PDT 9.80 2218 - Normal
10/20/2026 06 AM PDT 9.78 2203 - Normal
10/20/2026 07 AM PDT 9.77 2195 - Normal
10/20/2026 08 AM PDT 9.75 2180 - Normal
10/20/2026 09 AM PDT 9.73 2165 - Normal
10/20/2026 10 AM PDT 9.72 2158 - Normal
10/20/2026 11 AM PDT 9.69 2135 - Normal
10/20/2026 12 PM PDT 9.67 2120 - Normal
10/20/2026 01 PM PDT 9.62 2083 - Normal
10/20/2026 02 PM PDT 9.60 2068 - Normal
10/20/2026 03 PM PDT 9.58 2053 - Normal
10/20/2026 04 PM PDT 9.54 2024 - Normal
10/20/2026 05 PM PDT 9.51 2002 - Normal
10/20/2026 06 PM PDT 9.49 1988 - Normal
10/20/2026 07 PM PDT 9.46 1966 - Normal
10/20/2026 08 PM PDT 9.42 1937 - Normal
10/20/2026 09 PM PDT 9.38 1908 - Normal
10/20/2026 10 PM PDT 9.35 1887 - Normal
10/20/2026 11 PM PDT 9.32 1866 - Normal
10/21/2026 12 AM PDT 9.30 1852 - Normal
10/21/2026 01 AM PDT 9.26 1824 - Normal
10/21/2026 02 AM PDT 9.23 1803 - Normal
10/21/2026 03 AM PDT 9.20 1782 - Normal
10/21/2026 04 AM PDT 9.19 1775 - Normal
10/21/2026 05 AM PDT 9.17 1761 - Normal
10/21/2026 06 AM PDT 9.14 1740 - Normal
10/21/2026 07 AM PDT 9.13 1734 - Normal
10/21/2026 08 AM PDT 9.10 1713 - Normal
10/21/2026 09 AM PDT 9.07 1693 - Normal
10/21/2026 10 AM PDT 9.04 1672 - Normal
10/21/2026 11 AM PDT 9.00 1646 - Normal
10/21/2026 12 PM PDT 8.99 1639 - Normal
10/21/2026 01 PM PDT 8.97 1626 - Normal
10/21/2026 02 PM PDT 8.94 1606 - Normal
10/21/2026 03 PM PDT 8.91 1586 - Normal
10/21/2026 04 PM PDT 8.87 1560 - Normal
10/21/2026 05 PM PDT 8.84 1540 - Normal
10/21/2026 06 PM PDT 8.81 1520 - Normal
10/21/2026 07 PM PDT 8.78 1501 - Normal
10/21/2026 08 PM PDT 8.75 1482 - Normal
10/21/2026 09 PM PDT 8.73 1469 - Normal
10/21/2026 10 PM PDT 8.70 1450 - Normal
10/21/2026 11 PM PDT 8.67 1431 - Normal
10/22/2026 12 AM PDT 8.65 1418 - Normal
10/22/2026 01 AM PDT 8.62 1400 - Normal
10/22/2026 02 AM PDT 8.60 1387 - Normal
10/22/2026 03 AM PDT 8.59 1381 - Normal
10/22/2026 04 AM PDT 8.55 1356 - Normal
10/22/2026 05 AM PDT 8.57 1368 + Normal
10/22/2026 06 AM PDT 8.58 1375 + Normal
10/22/2026 07 AM PDT 8.56 1362 - Normal
10/22/2026 08 AM PDT 8.55 1356 - Normal
10/22/2026 09 AM PDT 8.53 1344 - Normal
10/22/2026 10 AM PDT 8.53 1344 0 Normal
10/22/2026 11 AM PDT 8.51 1331 - Normal
10/22/2026 12 PM PDT 8.51 1331 0 Normal
10/22/2026 01 PM PDT 8.51 1331 0 Normal
10/22/2026 02 PM PDT 8.50 1325 - Normal
10/22/2026 03 PM PDT 8.52 1338 + Normal
10/22/2026 04 PM PDT 8.53 1344 + Normal
10/22/2026 05 PM PDT 8.55 1356 + Normal
10/22/2026 06 PM PDT 8.58 1375 + Normal
10/22/2026 07 PM PDT 8.60 1387 + Normal
10/22/2026 08 PM PDT 8.62 1400 + Normal
10/22/2026 09 PM PDT 8.64 1412 + Normal
10/22/2026 10 PM PDT 8.66 1425 + Normal
10/22/2026 11 PM PDT 8.69 1444 + Normal
10/23/2026 12 AM PDT 8.72 1463 + Normal
10/23/2026 01 AM PDT 8.74 1475 + Normal
10/23/2026 02 AM PDT 8.78 1501 + Normal
10/23/2026 03 AM PDT 8.81 1520 + Normal
10/23/2026 04 AM PDT 8.84 1540 + Normal
10/23/2026 05 AM PDT 8.87 1560 + Normal
10/23/2026 06 AM PDT 8.90 1579 + Normal
10/23/2026 07 AM PDT 8.93 1599 + Normal
10/23/2026 08 AM PDT 8.97 1626 + Normal
10/23/2026 09 AM PDT 9.01 1652 + Normal
10/23/2026 10 AM PDT 9.04 1672 + Normal
10/23/2026 11 AM PDT 9.06 1686 + Normal
10/23/2026 12 PM PDT 9.10 1713 + Normal
10/23/2026 01 PM PDT 9.15 1747 + Normal
10/23/2026 02 PM PDT 9.19 1775 + Normal
10/23/2026 03 PM PDT 9.23 1803 + Normal
10/23/2026 04 PM PDT 9.28 1838 + Normal
10/23/2026 05 PM PDT 9.34 1880 + Normal
10/23/2026 06 PM PDT 9.40 1923 + Normal
10/23/2026 07 PM PDT 9.46 1966 + Normal
10/23/2026 08 PM PDT 9.51 2002 + Normal
10/23/2026 09 PM PDT 9.56 2039 + Normal
10/23/2026 10 PM PDT 9.59 2061 + Normal
10/23/2026 11 PM PDT 9.63 2090 + Normal
10/24/2026 12 AM PDT 9.66 2113 + Normal
10/24/2026 01 AM PDT 9.71 2150 + Normal
10/24/2026 02 AM PDT 9.75 2180 + Normal
10/24/2026 03 AM PDT 9.79 2210 + Normal
10/24/2026 04 AM PDT 9.82 2233 + Normal
10/24/2026 05 AM PDT 9.86 2264 + Normal
10/24/2026 06 AM PDT 9.89 2287 + Normal
10/24/2026 07 AM PDT 9.91 2302 + Normal
10/24/2026 08 AM PDT 9.94 2326 + Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
10/24/2026 01 PM PDT 10.04 2404 Normal
10/24/2026 02 PM PDT 10.05 2412 + Normal
10/24/2026 03 PM PDT 10.06 2420 + Normal
10/24/2026 04 PM PDT 10.08 2436 + Normal
10/24/2026 05 PM PDT 10.09 2443 + Normal
10/24/2026 06 PM PDT 10.09 2443 0 Normal
10/24/2026 07 PM PDT 10.10 2451 + Normal
10/24/2026 08 PM PDT 10.10 2451 0 Normal
10/24/2026 09 PM PDT 10.11 2459 + Normal
10/24/2026 10 PM PDT 10.11 2459 0 Normal
10/24/2026 11 PM PDT 10.10 2451 - Normal
10/25/2026 12 AM PDT 10.10 2451 0 Normal
10/25/2026 01 AM PDT 10.10 2451 0 Normal
10/25/2026 02 AM PDT 10.09 2443 - Normal
10/25/2026 03 AM PDT 10.08 2436 - Normal
10/25/2026 04 AM PDT 10.07 2428 - Normal
10/25/2026 05 AM PDT 10.06 2420 - Normal
10/25/2026 06 AM PDT 10.05 2412 - Normal
10/25/2026 07 AM PDT 10.03 2396 - Normal
10/25/2026 08 AM PDT 10.02 2388 - Normal
10/25/2026 09 AM PDT 10.01 2380 - Normal
10/25/2026 10 AM PDT 10.00 2373 - Normal
10/25/2026 11 AM PDT 9.98 2357 - Normal
10/25/2026 12 PM PDT 9.97 2349 - Normal
10/25/2026 01 PM PDT 9.96 2341 - Normal
10/25/2026 02 PM PDT 9.95 2333 - Normal
10/25/2026 03 PM PDT 9.94 2326 - Normal
10/25/2026 04 PM PDT 9.93 2318 - Normal
10/25/2026 05 PM PDT 9.92 2310 - Normal
10/25/2026 06 PM PDT 9.91 2302 - Normal
10/25/2026 07 PM PDT 9.90 2295 - Normal
10/25/2026 08 PM PDT 9.89 2287 - Normal
10/25/2026 09 PM PDT 9.88 2279 - Normal
10/25/2026 10 PM PDT 9.88 2279 0 Normal
10/25/2026 11 PM PDT 9.87 2272 - Normal
10/26/2026 12 AM PDT 9.86 2264 - Normal
10/26/2026 01 AM PDT 9.84 2249 - Normal
10/26/2026 02 AM PDT 9.83 2241 - Normal
10/26/2026 03 AM PDT 9.81 2226 - Normal
10/26/2026 04 AM PDT 9.80 2218 - Normal
10/26/2026 05 AM PDT 9.78 2203 - Normal
10/26/2026 06 AM PDT 9.77 2195 - Normal
10/26/2026 07 AM PDT 9.75 2180 - Normal
10/26/2026 08 AM PDT 9.73 2165 - Normal
10/26/2026 09 AM PDT 9.71 2150 - Normal
10/26/2026 10 AM PDT 9.70 2143 - Normal
10/26/2026 11 AM PDT 9.68 2128 - Normal
10/26/2026 12 PM PDT 9.66 2113 - Normal
10/26/2026 01 PM PDT 9.65 2105 - Normal
10/26/2026 02 PM PDT 9.63 2090 - Normal
10/26/2026 03 PM PDT 9.61 2076 - Normal
10/26/2026 04 PM PDT 9.60 2068 - Normal
10/26/2026 05 PM PDT 9.58 2053 - Normal
10/26/2026 06 PM PDT 9.56 2039 - Normal
10/26/2026 07 PM PDT 9.55 2031 - Normal
10/26/2026 08 PM PDT 9.53 2017 - Normal
10/26/2026 09 PM PDT 9.52 2009 - Normal
10/26/2026 10 PM PDT 9.50 1995 - Normal
10/26/2026 11 PM PDT 9.48 1980 - Normal
10/27/2026 12 AM PDT 9.46 1966 - Normal
10/27/2026 01 AM PDT 9.44 1951 - Normal
10/27/2026 02 AM PDT 9.42 1937 - Normal
10/27/2026 03 AM PDT 9.39 1916 - Normal
10/27/2026 04 AM PDT 9.37 1901 - Normal
10/27/2026 05 AM PDT 9.34 1880 - Normal
10/27/2026 06 AM PDT 9.31 1859 - Normal
10/27/2026 07 AM PDT 9.28 1838 - Normal
10/27/2026 08 AM PDT 9.25 1817 - Normal
10/27/2026 09 AM PDT 9.22 1796 - Normal
10/27/2026 10 AM PDT 9.18 1768 - Normal
10/27/2026 11 AM PDT 9.15 1747 - Normal
10/27/2026 12 PM PDT 9.12 1727 - Normal
10/27/2026 01 PM PDT 9.08 1700 - Normal
10/27/2026 02 PM PDT 9.05 1679 - Normal
10/27/2026 03 PM PDT 9.01 1652 - Normal
10/27/2026 04 PM PDT 8.98 1632 - Normal
10/27/2026 05 PM PDT 8.94 1606 - Normal
10/27/2026 06 PM PDT 8.91 1586 - Normal
10/27/2026 07 PM PDT 8.88 1566 - Normal
10/27/2026 08 PM PDT 8.85 1546 - Normal
10/27/2026 09 PM PDT 8.82 1527 - Normal
10/27/2026 10 PM PDT 8.80 1514 - Normal
10/27/2026 11 PM PDT 8.77 1495 - Normal
10/28/2026 12 AM PDT 8.74 1475 - Normal
10/28/2026 01 AM PDT 8.71 1456 - Normal
10/28/2026 02 AM PDT 8.69 1444 - Normal
10/28/2026 03 AM PDT 8.66 1425 - Normal
10/28/2026 04 AM PDT 8.63 1406 - Normal
10/28/2026 05 AM PDT 8.61 1393 - Normal
10/28/2026 06 AM PDT 8.58 1375 - Normal
10/28/2026 07 AM PDT 8.55 1356 - Normal
10/28/2026 08 AM PDT 8.53 1344 - Normal
10/28/2026 09 AM PDT 8.50 1325 - Normal
10/28/2026 10 AM PDT 8.48 1313 - Normal
10/28/2026 11 AM PDT 8.45 1295 - Normal
10/28/2026 12 PM PDT 8.43 1283 - Normal
10/28/2026 01 PM PDT 8.41 1271 - Normal
10/28/2026 02 PM PDT 8.38 1253 - Normal
10/28/2026 03 PM PDT 8.36 1241 - Normal
10/28/2026 04 PM PDT 8.34 1229 - Normal
10/28/2026 05 PM PDT 8.32 1217 - Normal
10/28/2026 06 PM PDT 8.30 1205 - Normal
10/28/2026 07 PM PDT 8.28 1194 - Normal
10/28/2026 08 PM PDT 8.26 1182 - Normal
10/28/2026 09 PM PDT 8.25 1176 - Normal
10/28/2026 10 PM PDT 8.23 1165 - Normal
10/28/2026 11 PM PDT 8.22 1159 - Normal
10/29/2026 12 AM PDT 8.21 1153 - Normal
10/29/2026 01 AM PDT 8.20 1147 - Normal
10/29/2026 02 AM PDT 8.19 1142 - Normal
10/29/2026 03 AM PDT 8.18 1136 - Normal
10/29/2026 04 AM PDT 8.18 1136 0 Normal
10/29/2026 05 AM PDT 8.18 1136 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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