SAN JOAQUIN RIVER - VERNALIS (VNSC1)
Latitude: 37.68º NLongitude: 121.27º WElevation: 35 Feet
Location: San Joaquin County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Dec 26 2025 at 2:51 PM PSTNext Issuance: Dec 27 2025 at 9:00 AM PST
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:  12/26/2025 at 02:51 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/23/2025 at 09:00 AM PST
# Maximum Observed Stage:                       13.98 Feet
# Maximum Observed Flow:                        6112 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/26/2025 at 03:00 PM PST
# Maximum Forecast Stage:                       12.29 Feet
# Maximum Forecast Flow:                        4360 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/21/2025 02 PM PST           12.86           4923                        Normal
  12/21/2025 03 PM PST           12.91           4973         +              Normal
  12/21/2025 04 PM PST           12.95           5014         +              Normal
  12/21/2025 05 PM PST           13.00           5065         +              Normal
  12/21/2025 06 PM PST           13.05           5117         +              Normal
  12/21/2025 07 PM PST           13.09           5158         +              Normal
  12/21/2025 08 PM PST           13.13           5199         +              Normal
  12/21/2025 09 PM PST           13.18           5251         +              Normal
  12/21/2025 10 PM PST           13.22           5293         +              Normal
  12/21/2025 11 PM PST           13.27           5345         +              Normal
  12/22/2025 12 AM PST           13.31           5387         +              Normal
  12/22/2025 01 AM PST           13.33           5409         +              Normal
  12/22/2025 02 AM PST           13.37           5451         +              Normal
  12/22/2025 03 AM PST           13.42           5504         +              Normal
  12/22/2025 04 AM PST           13.46           5546         +              Normal
  12/22/2025 05 AM PST           13.49           5578         +              Normal
  12/22/2025 06 AM PST           13.52           5610         +              Normal
  12/22/2025 07 AM PST           13.56           5653         +              Normal
  12/22/2025 08 AM PST           13.61           5707         +              Normal
  12/22/2025 09 AM PST           13.63           5729         +              Normal
  12/22/2025 10 AM PST           13.67           5772         +              Normal
  12/22/2025 11 AM PST           13.71           5815         +              Normal
  12/22/2025 12 PM PST           13.74           5848         +              Normal
  12/22/2025 01 PM PST           13.78           5892         +              Normal
  12/22/2025 02 PM PST           13.81           5924         +              Normal
  12/22/2025 03 PM PST           13.83           5946         +              Normal
  12/22/2025 04 PM PST           13.86           5979         +              Normal
  12/22/2025 05 PM PST           13.87           5990         +              Normal
  12/22/2025 06 PM PST           13.89           6012         +              Normal
  12/22/2025 07 PM PST           13.91           6034         +              Normal
  12/22/2025 08 PM PST           13.92           6045         +              Normal
  12/22/2025 09 PM PST           13.93           6056         +              Normal
  12/22/2025 10 PM PST           13.94           6068         +              Normal
  12/22/2025 11 PM PST           13.95           6079         +              Normal
  12/23/2025 12 AM PST           13.96           6090         +              Normal
  12/23/2025 01 AM PST           13.96           6090         0              Normal
  12/23/2025 02 AM PST           13.97           6101         +              Normal
  12/23/2025 03 AM PST           13.97           6101         0              Normal
  12/23/2025 04 AM PST           13.98           6112         +              Normal
  12/23/2025 05 AM PST           13.98           6112         0              Normal
  12/23/2025 06 AM PST           13.98           6112         0              Normal
  12/23/2025 07 AM PST           13.98           6112         0              Normal
  12/23/2025 08 AM PST           13.98           6112         0              Normal
  12/23/2025 09 AM PST           13.98           6112         0              Normal
  12/23/2025 10 AM PST           13.97           6101         -              Normal
  12/23/2025 11 AM PST           13.96           6090         -              Normal
  12/23/2025 12 PM PST           13.97           6101         +              Normal
  12/23/2025 01 PM PST           13.96           6090         -              Normal
  12/23/2025 02 PM PST           13.95           6079         -              Normal
  12/23/2025 03 PM PST           13.95           6079         0              Normal
  12/23/2025 04 PM PST           13.94           6068         -              Normal
  12/23/2025 05 PM PST           13.93           6056         -              Normal
  12/23/2025 06 PM PST           13.93           6056         0              Normal
  12/23/2025 07 PM PST           13.92           6045         -              Normal
  12/23/2025 08 PM PST           13.90           6023         -              Normal
  12/23/2025 09 PM PST           13.89           6012         -              Normal
  12/23/2025 10 PM PST           13.86           5979         -              Normal
  12/23/2025 11 PM PST           13.83           5946         -              Normal
  12/24/2025 12 AM PST           13.83           5946         0              Normal
  12/24/2025 01 AM PST           13.81           5924         -              Normal
  12/24/2025 02 AM PST           13.79           5903         -              Normal
  12/24/2025 03 AM PST           13.75           5859         -              Normal
  12/24/2025 04 AM PST           13.75           5859         0              Normal
  12/24/2025 05 AM PST           13.75           5859         0              Normal
  12/24/2025 06 AM PST           13.75           5859         0              Normal
  12/24/2025 07 AM PST           13.75           5859         0              Normal
  12/24/2025 08 AM PST           13.74           5848         -              Normal
  12/24/2025 09 AM PST           13.72           5826         -              Normal
  12/24/2025 10 AM PST           13.71           5815         -              Normal
  12/24/2025 11 AM PST           13.69           5794         -              Normal
  12/24/2025 12 PM PST           13.67           5772         -              Normal
  12/24/2025 01 PM PST           13.66           5761         -              Normal
  12/24/2025 02 PM PST           13.63           5729         -              Normal
  12/24/2025 03 PM PST           13.62           5718         -              Normal
  12/24/2025 04 PM PST           13.62           5718         0              Normal
  12/24/2025 05 PM PST           13.61           5707         -              Normal
  12/24/2025 06 PM PST           13.61           5707         0              Normal
  12/24/2025 07 PM PST           13.61           5707         0              Normal
  12/24/2025 08 PM PST           13.62           5718         +              Normal
  12/24/2025 09 PM PST           13.62           5718         0              Normal
  12/24/2025 10 PM PST           13.60           5696         -              Normal
  12/24/2025 11 PM PST           13.59           5685         -              Normal
  12/25/2025 12 AM PST           13.58           5675         -              Normal
  12/25/2025 01 AM PST           13.56           5653         -              Normal
  12/25/2025 02 AM PST           13.55           5643         -              Normal
  12/25/2025 03 AM PST           13.53           5621         -              Normal
  12/25/2025 04 AM PST           13.51           5600         -              Normal
  12/25/2025 05 AM PST           13.50           5589         -              Normal
  12/25/2025 06 AM PST           13.46           5546         -              Normal
  12/25/2025 07 AM PST           13.45           5536         -              Normal
  12/25/2025 08 AM PST           13.39           5472         -              Normal
  12/25/2025 09 AM PST           13.36           5440         -              Normal
  12/25/2025 10 AM PST           13.33           5409         -              Normal
  12/25/2025 11 AM PST           13.29           5366         -              Normal
  12/25/2025 12 PM PST           13.23           5304         -              Normal
  12/25/2025 01 PM PST           13.18           5251         -              Normal
  12/25/2025 02 PM PST           13.16           5231         -              Normal
  12/25/2025 03 PM PST           13.09           5158         -              Normal
  12/25/2025 04 PM PST           13.04           5106         -              Normal
  12/25/2025 05 PM PST           12.99           5055         -              Normal
  12/25/2025 06 PM PST           12.94           5004         -              Normal
  12/25/2025 07 PM PST           12.89           4953         -              Normal
  12/25/2025 08 PM PST           12.84           4902         -              Normal
  12/25/2025 09 PM PST           12.81           4872         -              Normal
  12/25/2025 10 PM PST           12.78           4842         -              Normal
  12/25/2025 11 PM PST           12.75           4812         -              Normal
  12/26/2025 12 AM PST           12.70           4762         -              Normal
  12/26/2025 01 AM PST           12.69           4752         -              Normal
  12/26/2025 02 AM PST           12.65           4712         -              Normal
  12/26/2025 03 AM PST           12.65           4712         0              Normal
  12/26/2025 04 AM PST           12.62           4682         -              Normal
  12/26/2025 05 AM PST           12.59           4652         -              Normal
  12/26/2025 06 AM PST           12.56           4623         -              Normal
  12/26/2025 07 AM PST           12.52           4583         -              Normal
  12/26/2025 08 AM PST           12.49           4554         -              Normal
  12/26/2025 09 AM PST           12.45           4515         -              Normal
  12/26/2025 10 AM PST           12.41           4476         -              Normal
  12/26/2025 11 AM PST           12.39           4456         -              Normal
  12/26/2025 12 PM PST           12.36           4427         -              Normal
  12/26/2025 01 PM PST           12.34           4408         -              Normal
  12/26/2025 02 PM PST           12.31           4379         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/26/2025 03 PM PST           12.29           4360                        Normal
  12/26/2025 04 PM PST           12.26           4331         -              Normal
  12/26/2025 05 PM PST           12.24           4312         -              Normal
  12/26/2025 06 PM PST           12.21           4283         -              Normal
  12/26/2025 07 PM PST           12.19           4264         -              Normal
  12/26/2025 08 PM PST           12.16           4235         -              Normal
  12/26/2025 09 PM PST           12.14           4216         -              Normal
  12/26/2025 10 PM PST           12.12           4197         -              Normal
  12/26/2025 11 PM PST           12.10           4178         -              Normal
  12/27/2025 12 AM PST           12.08           4160         -              Normal
  12/27/2025 01 AM PST           12.07           4150         -              Normal
  12/27/2025 02 AM PST           12.06           4141         -              Normal
  12/27/2025 03 AM PST           12.06           4141         0              Normal
  12/27/2025 04 AM PST           12.07           4150         +              Normal
  12/27/2025 05 AM PST           12.08           4160         +              Normal
  12/27/2025 06 AM PST           12.10           4178         +              Normal
  12/27/2025 07 AM PST           12.11           4188         +              Normal
  12/27/2025 08 AM PST           12.13           4207         +              Normal
  12/27/2025 09 AM PST           12.15           4226         +              Normal
  12/27/2025 10 AM PST           12.16           4235         +              Normal
  12/27/2025 11 AM PST           12.18           4254         +              Normal
  12/27/2025 12 PM PST           12.18           4254         0              Normal
  12/27/2025 01 PM PST           12.18           4254         0              Normal
  12/27/2025 02 PM PST           12.18           4254         0              Normal
  12/27/2025 03 PM PST           12.17           4245         -              Normal
  12/27/2025 04 PM PST           12.16           4235         -              Normal
  12/27/2025 05 PM PST           12.14           4216         -              Normal
  12/27/2025 06 PM PST           12.12           4197         -              Normal
  12/27/2025 07 PM PST           12.10           4178         -              Normal
  12/27/2025 08 PM PST           12.07           4150         -              Normal
  12/27/2025 09 PM PST           12.04           4122         -              Normal
  12/27/2025 10 PM PST           12.02           4103         -              Normal
  12/27/2025 11 PM PST           11.98           4066         -              Normal
  12/28/2025 12 AM PST           11.95           4038         -              Normal
  12/28/2025 01 AM PST           11.92           4010         -              Normal
  12/28/2025 02 AM PST           11.89           3982         -              Normal
  12/28/2025 03 AM PST           11.85           3945         -              Normal
  12/28/2025 04 AM PST           11.82           3917         -              Normal
  12/28/2025 05 AM PST           11.78           3880         -              Normal
  12/28/2025 06 AM PST           11.74           3844         -              Normal
  12/28/2025 07 AM PST           11.71           3817         -              Normal
  12/28/2025 08 AM PST           11.67           3780         -              Normal
  12/28/2025 09 AM PST           11.63           3744         -              Normal
  12/28/2025 10 AM PST           11.59           3708         -              Normal
  12/28/2025 11 AM PST           11.55           3672         -              Normal
  12/28/2025 12 PM PST           11.51           3636         -              Normal
  12/28/2025 01 PM PST           11.46           3592         -              Normal
  12/28/2025 02 PM PST           11.42           3557         -              Normal
  12/28/2025 03 PM PST           11.37           3512         -              Normal
  12/28/2025 04 PM PST           11.33           3477         -              Normal
  12/28/2025 05 PM PST           11.28           3434         -              Normal
  12/28/2025 06 PM PST           11.24           3399         -              Normal
  12/28/2025 07 PM PST           11.19           3356         -              Normal
  12/28/2025 08 PM PST           11.14           3313         -              Normal
  12/28/2025 09 PM PST           11.10           3278         -              Normal
  12/28/2025 10 PM PST           11.05           3235         -              Normal
  12/28/2025 11 PM PST           11.01           3201         -              Normal
  12/29/2025 12 AM PST           10.96           3157         -              Normal
  12/29/2025 01 AM PST           10.92           3122         -              Normal
  12/29/2025 02 AM PST           10.87           3078         -              Normal
  12/29/2025 03 AM PST           10.83           3043         -              Normal
  12/29/2025 04 AM PST           10.79           3008         -              Normal
  12/29/2025 05 AM PST           10.75           2973         -              Normal
  12/29/2025 06 AM PST           10.71           2939         -              Normal
  12/29/2025 07 AM PST           10.67           2905         -              Normal
  12/29/2025 08 AM PST           10.63           2871         -              Normal
  12/29/2025 09 AM PST           10.59           2837         -              Normal
  12/29/2025 10 AM PST           10.55           2803         -              Normal
  12/29/2025 11 AM PST           10.51           2769         -              Normal
  12/29/2025 12 PM PST           10.46           2728         -              Normal
  12/29/2025 01 PM PST           10.43           2703         -              Normal
  12/29/2025 02 PM PST           10.39           2670         -              Normal
  12/29/2025 03 PM PST           10.35           2637         -              Normal
  12/29/2025 04 PM PST           10.32           2612         -              Normal
  12/29/2025 05 PM PST           10.28           2580         -              Normal
  12/29/2025 06 PM PST           10.25           2556         -              Normal
  12/29/2025 07 PM PST           10.22           2531         -              Normal
  12/29/2025 08 PM PST           10.18           2499         -              Normal
  12/29/2025 09 PM PST           10.15           2475         -              Normal
  12/29/2025 10 PM PST           10.12           2451         -              Normal
  12/29/2025 11 PM PST           10.10           2436         -              Normal
  12/30/2025 12 AM PST           10.07           2412         -              Normal
  12/30/2025 01 AM PST           10.04           2388         -              Normal
  12/30/2025 02 AM PST           10.02           2373         -              Normal
  12/30/2025 03 AM PST            9.99           2349         -              Normal
  12/30/2025 04 AM PST            9.97           2333         -              Normal
  12/30/2025 05 AM PST            9.95           2318         -              Normal
  12/30/2025 06 AM PST            9.93           2302         -              Normal
  12/30/2025 07 AM PST            9.90           2279         -              Normal
  12/30/2025 08 AM PST            9.88           2264         -              Normal
  12/30/2025 09 AM PST            9.87           2256         -              Normal
  12/30/2025 10 AM PST            9.85           2241         -              Normal
  12/30/2025 11 AM PST            9.83           2226         -              Normal
  12/30/2025 12 PM PST            9.81           2210         -              Normal
  12/30/2025 01 PM PST            9.80           2203         -              Normal
  12/30/2025 02 PM PST            9.78           2188         -              Normal
  12/30/2025 03 PM PST            9.77           2180         -              Normal
  12/30/2025 04 PM PST            9.75           2165         -              Normal
  12/30/2025 05 PM PST            9.74           2158         -              Normal
  12/30/2025 06 PM PST            9.72           2143         -              Normal
  12/30/2025 07 PM PST            9.71           2135         -              Normal
  12/30/2025 08 PM PST            9.70           2128         -              Normal
  12/30/2025 09 PM PST            9.69           2120         -              Normal
  12/30/2025 10 PM PST            9.68           2113         -              Normal
  12/30/2025 11 PM PST            9.67           2105         -              Normal
  12/31/2025 12 AM PST            9.66           2098         -              Normal
  12/31/2025 01 AM PST            9.65           2090         -              Normal
  12/31/2025 02 AM PST            9.64           2083         -              Normal
  12/31/2025 03 AM PST            9.63           2076         -              Normal
  12/31/2025 04 AM PST            9.62           2068         -              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.