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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: | Mar 12 2026 at 12:51 PM PDT | Next Issuance: | Mar 13 2026 at 9:00 AM 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: 03/12/2026 at 12:51 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/07/2026 at 11:00 AM PST
# Maximum Observed Stage: 13.57 Feet
# Maximum Observed Flow: 5678 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/12/2026 at 01:00 PM PDT
# Maximum Forecast Stage: 12.73 Feet
# Maximum Forecast Flow: 4807 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
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 12.85 4928 + Normal
03/11/2026 01 PM PDT 12.84 4918 - Normal
03/11/2026 02 PM PDT 12.84 4918 0 Normal
03/11/2026 03 PM PDT 12.82 4898 - Normal
03/11/2026 04 PM PDT 12.83 4908 + Normal
03/11/2026 05 PM PDT 12.81 4888 - Normal
03/11/2026 06 PM PDT 12.82 4898 + Normal
03/11/2026 07 PM PDT 12.83 4908 + Normal
03/11/2026 08 PM PDT 12.82 4898 - Normal
03/11/2026 09 PM PDT 12.81 4888 - Normal
03/11/2026 10 PM PDT 12.80 4878 - Normal
03/11/2026 11 PM PDT 12.79 4868 - Normal
03/12/2026 12 AM PDT 12.79 4868 0 Normal
03/12/2026 01 AM PDT 12.78 4858 - Normal
03/12/2026 02 AM PDT 12.77 4848 - 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 12.76 4838 0 Normal
03/12/2026 07 AM PDT 12.76 4838 0 Normal
03/12/2026 08 AM PDT 12.76 4838 0 Normal
03/12/2026 09 AM PDT 12.76 4838 0 Normal
03/12/2026 10 AM PDT 12.75 4828 - Normal
03/12/2026 11 AM PDT 12.74 4817 - Normal
03/12/2026 12 PM PDT 12.74 4817 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/12/2026 01 PM PDT 12.73 4807 Normal
03/12/2026 02 PM PDT 12.73 4807 0 Normal
03/12/2026 03 PM PDT 12.72 4797 - Normal
03/12/2026 04 PM PDT 12.72 4797 0 Normal
03/12/2026 05 PM PDT 12.72 4797 0 Normal
03/12/2026 06 PM PDT 12.72 4797 0 Normal
03/12/2026 07 PM PDT 12.71 4788 - Normal
03/12/2026 08 PM PDT 12.71 4788 0 Normal
03/12/2026 09 PM PDT 12.71 4788 0 Normal
03/12/2026 10 PM PDT 12.71 4788 0 Normal
03/12/2026 11 PM PDT 12.70 4778 - Normal
03/13/2026 12 AM PDT 12.70 4778 0 Normal
03/13/2026 01 AM PDT 12.70 4778 0 Normal
03/13/2026 02 AM PDT 12.70 4778 0 Normal
03/13/2026 03 AM PDT 12.70 4778 0 Normal
03/13/2026 04 AM PDT 12.69 4768 - Normal
03/13/2026 05 AM PDT 12.69 4768 0 Normal
03/13/2026 06 AM PDT 12.69 4768 0 Normal
03/13/2026 07 AM PDT 12.69 4768 0 Normal
03/13/2026 08 AM PDT 12.69 4768 0 Normal
03/13/2026 09 AM PDT 12.69 4768 0 Normal
03/13/2026 10 AM PDT 12.69 4768 0 Normal
03/13/2026 11 AM PDT 12.68 4758 - Normal
03/13/2026 12 PM PDT 12.68 4758 0 Normal
03/13/2026 01 PM PDT 12.68 4758 0 Normal
03/13/2026 02 PM PDT 12.68 4758 0 Normal
03/13/2026 03 PM PDT 12.68 4758 0 Normal
03/13/2026 04 PM PDT 12.68 4758 0 Normal
03/13/2026 05 PM PDT 12.67 4748 - Normal
03/13/2026 06 PM PDT 12.67 4748 0 Normal
03/13/2026 07 PM PDT 12.67 4748 0 Normal
03/13/2026 08 PM PDT 12.67 4748 0 Normal
03/13/2026 09 PM PDT 12.67 4748 0 Normal
03/13/2026 10 PM PDT 12.67 4748 0 Normal
03/13/2026 11 PM PDT 12.66 4738 - Normal
03/14/2026 12 AM PDT 12.66 4738 0 Normal
03/14/2026 01 AM PDT 12.66 4738 0 Normal
03/14/2026 02 AM PDT 12.66 4738 0 Normal
03/14/2026 03 AM PDT 12.66 4738 0 Normal
03/14/2026 04 AM PDT 12.66 4738 0 Normal
03/14/2026 05 AM PDT 12.66 4738 0 Normal
03/14/2026 06 AM PDT 12.65 4728 - Normal
03/14/2026 07 AM PDT 12.65 4728 0 Normal
03/14/2026 08 AM PDT 12.65 4728 0 Normal
03/14/2026 09 AM PDT 12.65 4728 0 Normal
03/14/2026 10 AM PDT 12.65 4728 0 Normal
03/14/2026 11 AM PDT 12.65 4728 0 Normal
03/14/2026 12 PM PDT 12.65 4728 0 Normal
03/14/2026 01 PM PDT 12.65 4728 0 Normal
03/14/2026 02 PM PDT 12.65 4728 0 Normal
03/14/2026 03 PM PDT 12.64 4718 - Normal
03/14/2026 04 PM PDT 12.64 4718 0 Normal
03/14/2026 05 PM PDT 12.64 4718 0 Normal
03/14/2026 06 PM PDT 12.64 4718 0 Normal
03/14/2026 07 PM PDT 12.64 4718 0 Normal
03/14/2026 08 PM PDT 12.64 4718 0 Normal
03/14/2026 09 PM PDT 12.64 4718 0 Normal
03/14/2026 10 PM PDT 12.64 4718 0 Normal
03/14/2026 11 PM PDT 12.64 4718 0 Normal
03/15/2026 12 AM PDT 12.64 4718 0 Normal
03/15/2026 01 AM PDT 12.64 4718 0 Normal
03/15/2026 02 AM PDT 12.63 4708 - Normal
03/15/2026 03 AM PDT 12.63 4708 0 Normal
03/15/2026 04 AM PDT 12.63 4708 0 Normal
03/15/2026 05 AM PDT 12.63 4708 0 Normal
03/15/2026 06 AM PDT 12.63 4708 0 Normal
03/15/2026 07 AM PDT 12.63 4708 0 Normal
03/15/2026 08 AM PDT 12.63 4708 0 Normal
03/15/2026 09 AM PDT 12.63 4708 0 Normal
03/15/2026 10 AM PDT 12.63 4708 0 Normal
03/15/2026 11 AM PDT 12.63 4708 0 Normal
03/15/2026 12 PM PDT 12.63 4708 0 Normal
03/15/2026 01 PM PDT 12.63 4708 0 Normal
03/15/2026 02 PM PDT 12.63 4708 0 Normal
03/15/2026 03 PM PDT 12.63 4708 0 Normal
03/15/2026 04 PM PDT 12.63 4708 0 Normal
03/15/2026 05 PM PDT 12.63 4708 0 Normal
03/15/2026 06 PM PDT 12.63 4708 0 Normal
03/15/2026 07 PM PDT 12.63 4708 0 Normal
03/15/2026 08 PM PDT 12.63 4708 0 Normal
03/15/2026 09 PM PDT 12.63 4708 0 Normal
03/15/2026 10 PM PDT 12.63 4708 0 Normal
03/15/2026 11 PM PDT 12.63 4708 0 Normal
03/16/2026 12 AM PDT 12.63 4708 0 Normal
03/16/2026 01 AM PDT 12.63 4708 0 Normal
03/16/2026 02 AM PDT 12.63 4708 0 Normal
03/16/2026 03 AM PDT 12.63 4708 0 Normal
03/16/2026 04 AM PDT 12.63 4708 0 Normal
03/16/2026 05 AM PDT 12.63 4708 0 Normal
03/16/2026 06 AM PDT 12.63 4708 0 Normal
03/16/2026 07 AM PDT 12.63 4708 0 Normal
03/16/2026 08 AM PDT 12.63 4708 0 Normal
03/16/2026 09 AM PDT 12.63 4708 0 Normal
03/16/2026 10 AM PDT 12.63 4708 0 Normal
03/16/2026 11 AM PDT 12.63 4708 0 Normal
03/16/2026 12 PM PDT 12.63 4708 0 Normal
03/16/2026 01 PM PDT 12.63 4708 0 Normal
03/16/2026 02 PM PDT 12.63 4708 0 Normal
03/16/2026 03 PM PDT 12.63 4708 0 Normal
03/16/2026 04 PM PDT 12.63 4708 0 Normal
03/16/2026 05 PM PDT 12.63 4708 0 Normal
03/16/2026 06 PM PDT 12.63 4708 0 Normal
03/16/2026 07 PM PDT 12.63 4708 0 Normal
03/16/2026 08 PM PDT 12.62 4698 - Normal
03/16/2026 09 PM PDT 12.62 4698 0 Normal
03/16/2026 10 PM PDT 12.62 4698 0 Normal
03/16/2026 11 PM PDT 12.62 4698 0 Normal
03/17/2026 12 AM PDT 12.62 4698 0 Normal
03/17/2026 01 AM PDT 12.62 4698 0 Normal
03/17/2026 02 AM PDT 12.62 4698 0 Normal
03/17/2026 03 AM PDT 12.62 4698 0 Normal
03/17/2026 04 AM PDT 12.62 4698 0 Normal
03/17/2026 05 AM PDT 12.62 4698 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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