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: Mar 11 2026 at 1:05 PM PDTNext Issuance: Mar 12 2026 at 9:00 AM PDT
Action/Monitor: 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:  03/11/2026 at 01:05 PM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/06/2026 at 02:00 PM PST
# Maximum Observed Stage:                       13.97 Feet
# Maximum Observed Flow:                        6114 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/11/2026 at 01:00 PM PDT
# Maximum Forecast Stage:                       12.83 Feet
# Maximum Forecast Flow:                        4908 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/06/2026 12 PM PST           13.97           6114                        Normal
  03/06/2026 01 PM PST           13.97           6114         0              Normal
  03/06/2026 02 PM PST           13.97           6114         0              Normal
  03/06/2026 03 PM PST           13.96           6103         -              Normal
  03/06/2026 04 PM PST           13.96           6103         0              Normal
  03/06/2026 05 PM PST           13.94           6081         -              Normal
  03/06/2026 06 PM PST           13.95           6092         +              Normal
  03/06/2026 07 PM PST           13.93           6070         -              Normal
  03/06/2026 08 PM PST           13.91           6048         -              Normal
  03/06/2026 09 PM PST           13.90           6037         -              Normal
  03/06/2026 10 PM PST           13.88           6015         -              Normal
  03/06/2026 11 PM PST           13.86           5993         -              Normal
  03/07/2026 12 AM PST           13.83           5960         -              Normal
  03/07/2026 01 AM PST           13.82           5949         -              Normal
  03/07/2026 02 AM PST           13.81           5938         -              Normal
  03/07/2026 03 AM PST           13.77           5894         -              Normal
  03/07/2026 04 AM PST           13.75           5873         -              Normal
  03/07/2026 05 AM PST           13.74           5862         -              Normal
  03/07/2026 06 AM PST           13.71           5829         -              Normal
  03/07/2026 07 AM PST           13.67           5786         -              Normal
  03/07/2026 08 AM PST           13.64           5753         -              Normal
  03/07/2026 09 AM PST           13.61           5721         -              Normal
  03/07/2026 10 AM PST           13.60           5710         -              Normal
  03/07/2026 11 AM PST           13.57           5678         -              Normal
  03/07/2026 12 PM PST           13.55           5657         -              Normal
  03/07/2026 01 PM PST           13.55           5657         0              Normal
  03/07/2026 02 PM PST           13.52           5625         -              Normal
  03/07/2026 03 PM PST           13.52           5625         0              Normal
  03/07/2026 04 PM PST           13.49           5593         -              Normal
  03/07/2026 05 PM PST           13.49           5593         0              Normal
  03/07/2026 06 PM PST           13.48           5582         -              Normal
  03/07/2026 07 PM PST           13.46           5561         -              Normal
  03/07/2026 08 PM PST           13.44           5539         -              Normal
  03/07/2026 09 PM PST           13.42           5518         -              Normal
  03/07/2026 10 PM PST           13.40           5497         -              Normal
  03/07/2026 11 PM PST           13.39           5486         -              Normal
  03/08/2026 12 AM PST           13.37           5465         -              Normal
  03/08/2026 01 AM PST           13.36           5455         -              Normal
  03/08/2026 03 AM PDT           13.34           5434         -              Normal
  03/08/2026 04 AM PDT           13.33           5423         -              Normal
  03/08/2026 05 AM PDT           13.32           5413         -              Normal
  03/08/2026 06 AM PDT           13.31           5402         -              Normal
  03/08/2026 07 AM PDT           13.29           5381         -              Normal
  03/08/2026 08 AM PDT           13.28           5371         -              Normal
  03/08/2026 09 AM PDT           13.27           5360         -              Normal
  03/08/2026 10 AM PDT           13.26           5350         -              Normal
  03/08/2026 11 AM PDT           13.25           5339         -              Normal
  03/08/2026 12 PM PDT           13.25           5339         0              Normal
  03/08/2026 01 PM PDT           13.25           5339         0              Normal
  03/08/2026 02 PM PDT           13.24           5329         -              Normal
  03/08/2026 03 PM PDT           13.23           5318         -              Normal
  03/08/2026 04 PM PDT           13.23           5318         0              Normal
  03/08/2026 05 PM PDT           13.21           5298         -              Normal
  03/08/2026 06 PM PDT           13.21           5298         0              Normal
  03/08/2026 07 PM PDT           13.20           5287         -              Normal
  03/08/2026 08 PM PDT           13.19           5277         -              Normal
  03/08/2026 09 PM PDT           13.19           5277         0              Normal
  03/08/2026 10 PM PDT           13.18           5266         -              Normal
  03/08/2026 11 PM PDT           13.18           5266         0              Normal
  03/09/2026 12 AM PDT           13.17           5256         -              Normal
  03/09/2026 01 AM PDT           13.16           5246         -              Normal
  03/09/2026 02 AM PDT           13.17           5256         +              Normal
  03/09/2026 03 AM PDT           13.16           5246         -              Normal
  03/09/2026 04 AM PDT           13.15           5235         -              Normal
  03/09/2026 05 AM PDT           13.15           5235         0              Normal
  03/09/2026 06 AM PDT           13.14           5225         -              Normal
  03/09/2026 07 AM PDT           13.13           5214         -              Normal
  03/09/2026 08 AM PDT           13.13           5214         0              Normal
  03/09/2026 09 AM PDT           13.12           5204         -              Normal
  03/09/2026 10 AM PDT           13.11           5194         -              Normal
  03/09/2026 11 AM PDT           13.09           5173         -              Normal
  03/09/2026 12 PM PDT           13.09           5173         0              Normal
  03/09/2026 01 PM PDT           13.10           5183         +              Normal
  03/09/2026 02 PM PDT           13.10           5183         0              Normal
  03/09/2026 03 PM PDT           13.09           5173         -              Normal
  03/09/2026 04 PM PDT           13.08           5163         -              Normal
  03/09/2026 05 PM PDT           13.10           5183         +              Normal
  03/09/2026 06 PM PDT           13.09           5173         -              Normal
  03/09/2026 07 PM PDT           13.08           5163         -              Normal
  03/09/2026 08 PM PDT           13.06           5142         -              Normal
  03/09/2026 09 PM PDT           13.05           5132         -              Normal
  03/09/2026 10 PM PDT           13.04           5122         -              Normal
  03/09/2026 11 PM PDT           13.04           5122         0              Normal
  03/10/2026 12 AM PDT           13.03           5111         -              Normal
  03/10/2026 01 AM PDT           13.02           5101         -              Normal
  03/10/2026 02 AM PDT           13.02           5101         0              Normal
  03/10/2026 03 AM PDT           13.01           5091         -              Normal
  03/10/2026 04 AM PDT           13.00           5081         -              Normal
  03/10/2026 05 AM PDT           13.00           5081         0              Normal
  03/10/2026 06 AM PDT           12.99           5070         -              Normal
  03/10/2026 07 AM PDT           12.98           5060         -              Normal
  03/10/2026 08 AM PDT           12.95           5030         -              Normal
  03/10/2026 09 AM PDT           12.97           5050         +              Normal
  03/10/2026 10 AM PDT           12.96           5040         -              Normal
  03/10/2026 11 AM PDT           12.93           5009         -              Normal
  03/10/2026 12 PM PDT           12.93           5009         0              Normal
  03/10/2026 01 PM PDT           12.91           4989         -              Normal
  03/10/2026 02 PM PDT           12.91           4989         0              Normal
  03/10/2026 03 PM PDT           12.89           4969         -              Normal
  03/10/2026 04 PM PDT           12.89           4969         0              Normal
  03/10/2026 05 PM PDT           12.88           4958         -              Normal
  03/10/2026 06 PM PDT           12.89           4969         +              Normal
  03/10/2026 07 PM PDT           12.91           4989         +              Normal
  03/10/2026 08 PM PDT           12.91           4989         0              Normal
  03/10/2026 09 PM PDT           12.91           4989         0              Normal
  03/10/2026 10 PM PDT           12.90           4979         -              Normal
  03/10/2026 11 PM PDT           12.90           4979         0              Normal
  03/11/2026 12 AM PDT           12.89           4969         -              Normal
  03/11/2026 01 AM PDT           12.88           4958         -              Normal
  03/11/2026 02 AM PDT           12.87           4948         -              Normal
  03/11/2026 03 AM PDT           12.87           4948         0              Normal
  03/11/2026 04 AM PDT           12.87           4948         0              Normal
  03/11/2026 05 AM PDT           12.87           4948         0              Normal
  03/11/2026 06 AM PDT           12.87           4948         0              Normal
  03/11/2026 07 AM PDT           12.87           4948         0              Normal
  03/11/2026 08 AM PDT           12.87           4948         0              Normal
  03/11/2026 09 AM PDT           12.88           4958         +              Normal
  03/11/2026 10 AM PDT           12.85           4928         -              Normal
  03/11/2026 11 AM PDT           12.84           4918         -              Normal
  03/11/2026 12 PM PDT           12.84           4918         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/11/2026 01 PM PDT           12.83           4908                        Normal
  03/11/2026 02 PM PDT           12.82           4898         -              Normal
  03/11/2026 03 PM PDT           12.82           4898         0              Normal
  03/11/2026 04 PM PDT           12.81           4888         -              Normal
  03/11/2026 05 PM PDT           12.81           4888         0              Normal
  03/11/2026 06 PM PDT           12.80           4878         -              Normal
  03/11/2026 07 PM PDT           12.80           4878         0              Normal
  03/11/2026 08 PM PDT           12.79           4868         -              Normal
  03/11/2026 09 PM PDT           12.79           4868         0              Normal
  03/11/2026 10 PM PDT           12.79           4868         0              Normal
  03/11/2026 11 PM PDT           12.78           4858         -              Normal
  03/12/2026 12 AM PDT           12.78           4858         0              Normal
  03/12/2026 01 AM PDT           12.77           4848         -              Normal
  03/12/2026 02 AM PDT           12.77           4848         0              Normal
  03/12/2026 03 AM PDT           12.77           4848         0              Normal
  03/12/2026 04 AM PDT           12.76           4838         -              Normal
  03/12/2026 05 AM PDT           12.76           4838         0              Normal
  03/12/2026 06 AM PDT           12.75           4828         -              Normal
  03/12/2026 07 AM PDT           12.75           4828         0              Normal
  03/12/2026 08 AM PDT           12.75           4828         0              Normal
  03/12/2026 09 AM PDT           12.74           4817         -              Normal
  03/12/2026 10 AM PDT           12.74           4817         0              Normal
  03/12/2026 11 AM PDT           12.73           4807         -              Normal
  03/12/2026 12 PM PDT           12.73           4807         0              Normal
  03/12/2026 01 PM PDT           12.73           4807         0              Normal
  03/12/2026 02 PM PDT           12.72           4797         -              Normal
  03/12/2026 03 PM PDT           12.72           4797         0              Normal
  03/12/2026 04 PM PDT           12.71           4788         -              Normal
  03/12/2026 05 PM PDT           12.71           4788         0              Normal
  03/12/2026 06 PM PDT           12.71           4788         0              Normal
  03/12/2026 07 PM PDT           12.70           4778         -              Normal
  03/12/2026 08 PM PDT           12.70           4778         0              Normal
  03/12/2026 09 PM PDT           12.70           4778         0              Normal
  03/12/2026 10 PM PDT           12.69           4768         -              Normal
  03/12/2026 11 PM PDT           12.69           4768         0              Normal
  03/13/2026 12 AM PDT           12.69           4768         0              Normal
  03/13/2026 01 AM PDT           12.68           4758         -              Normal
  03/13/2026 02 AM PDT           12.68           4758         0              Normal
  03/13/2026 03 AM PDT           12.68           4758         0              Normal
  03/13/2026 04 AM PDT           12.67           4748         -              Normal
  03/13/2026 05 AM PDT           12.67           4748         0              Normal
  03/13/2026 06 AM PDT           12.67           4748         0              Normal
  03/13/2026 07 AM PDT           12.66           4738         -              Normal
  03/13/2026 08 AM PDT           12.66           4738         0              Normal
  03/13/2026 09 AM PDT           12.66           4738         0              Normal
  03/13/2026 10 AM PDT           12.65           4728         -              Normal
  03/13/2026 11 AM PDT           12.65           4728         0              Normal
  03/13/2026 12 PM PDT           12.65           4728         0              Normal
  03/13/2026 01 PM PDT           12.65           4728         0              Normal
  03/13/2026 02 PM PDT           12.64           4718         -              Normal
  03/13/2026 03 PM PDT           12.64           4718         0              Normal
  03/13/2026 04 PM PDT           12.64           4718         0              Normal
  03/13/2026 05 PM PDT           12.64           4718         0              Normal
  03/13/2026 06 PM PDT           12.63           4708         -              Normal
  03/13/2026 07 PM PDT           12.63           4708         0              Normal
  03/13/2026 08 PM PDT           12.63           4708         0              Normal
  03/13/2026 09 PM PDT           12.63           4708         0              Normal
  03/13/2026 10 PM PDT           12.63           4708         0              Normal
  03/13/2026 11 PM PDT           12.62           4698         -              Normal
  03/14/2026 12 AM PDT           12.62           4698         0              Normal
  03/14/2026 01 AM PDT           12.62           4698         0              Normal
  03/14/2026 02 AM PDT           12.62           4698         0              Normal
  03/14/2026 03 AM PDT           12.62           4698         0              Normal
  03/14/2026 04 AM PDT           12.62           4698         0              Normal
  03/14/2026 05 AM PDT           12.62           4698         0              Normal
  03/14/2026 06 AM PDT           12.61           4688         -              Normal
  03/14/2026 07 AM PDT           12.61           4688         0              Normal
  03/14/2026 08 AM PDT           12.61           4688         0              Normal
  03/14/2026 09 AM PDT           12.61           4688         0              Normal
  03/14/2026 10 AM PDT           12.61           4688         0              Normal
  03/14/2026 11 AM PDT           12.61           4688         0              Normal
  03/14/2026 12 PM PDT           12.61           4688         0              Normal
  03/14/2026 01 PM PDT           12.61           4688         0              Normal
  03/14/2026 02 PM PDT           12.60           4678         -              Normal
  03/14/2026 03 PM PDT           12.60           4678         0              Normal
  03/14/2026 04 PM PDT           12.60           4678         0              Normal
  03/14/2026 05 PM PDT           12.60           4678         0              Normal
  03/14/2026 06 PM PDT           12.60           4678         0              Normal
  03/14/2026 07 PM PDT           12.60           4678         0              Normal
  03/14/2026 08 PM PDT           12.60           4678         0              Normal
  03/14/2026 09 PM PDT           12.60           4678         0              Normal
  03/14/2026 10 PM PDT           12.60           4678         0              Normal
  03/14/2026 11 PM PDT           12.60           4678         0              Normal
  03/15/2026 12 AM PDT           12.60           4678         0              Normal
  03/15/2026 01 AM PDT           12.59           4668         -              Normal
  03/15/2026 02 AM PDT           12.59           4668         0              Normal
  03/15/2026 03 AM PDT           12.59           4668         0              Normal
  03/15/2026 04 AM PDT           12.59           4668         0              Normal
  03/15/2026 05 AM PDT           12.59           4668         0              Normal
  03/15/2026 06 AM PDT           12.59           4668         0              Normal
  03/15/2026 07 AM PDT           12.59           4668         0              Normal
  03/15/2026 08 AM PDT           12.59           4668         0              Normal
  03/15/2026 09 AM PDT           12.59           4668         0              Normal
  03/15/2026 10 AM PDT           12.59           4668         0              Normal
  03/15/2026 11 AM PDT           12.59           4668         0              Normal
  03/15/2026 12 PM PDT           12.59           4668         0              Normal
  03/15/2026 01 PM PDT           12.59           4668         0              Normal
  03/15/2026 02 PM PDT           12.59           4668         0              Normal
  03/15/2026 03 PM PDT           12.59           4668         0              Normal
  03/15/2026 04 PM PDT           12.59           4668         0              Normal
  03/15/2026 05 PM PDT           12.59           4668         0              Normal
  03/15/2026 06 PM PDT           12.59           4668         0              Normal
  03/15/2026 07 PM PDT           12.59           4668         0              Normal
  03/15/2026 08 PM PDT           12.59           4668         0              Normal
  03/15/2026 09 PM PDT           12.59           4668         0              Normal
  03/15/2026 10 PM PDT           12.59           4668         0              Normal
  03/15/2026 11 PM PDT           12.59           4668         0              Normal
  03/16/2026 12 AM PDT           12.59           4668         0              Normal
  03/16/2026 01 AM PDT           12.59           4668         0              Normal
  03/16/2026 02 AM PDT           12.58           4658         -              Normal
  03/16/2026 03 AM PDT           12.58           4658         0              Normal
  03/16/2026 04 AM PDT           12.58           4658         0              Normal
  03/16/2026 05 AM PDT           12.58           4658         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.