SAN JOAQUIN RIVER - VERNALIS (VNSC1)
Latitude: 37.68º NLongitude: 121.27º WElevation: 35 FeetForecast Type: Official Location
Location: San Joaquin County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Oct 24 2026 at 1:17 PM PDTNext Issuance: Oct 25 2026 at 9:00 AM PDT
Action: 24.5 FeetMinor Flood: 29.0 FeetModerate Flood: 32.0 FeetMajor 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.