National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

 | 

SAN JOAQUIN RIVER - STEVINSON (SSTC1)
Latitude: 37.29º NLongitude: 120.85º WElevation: 82 FeetForecast Type: Unofficial Location
Location: Merced County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Apr 22 2026 at 7:49 AM PDTNext Issuance: Apr 23 2026 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Joaquin River - Stevinson (SSTC1)
#
# File Generation Time:  04/22/2026 at 07:51 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/22/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       66.39 Feet
# Maximum Observed Flow:                        717 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/22/2026 at 01:00 PM PDT
# Maximum Forecast Stage:                       66.40 Feet
# Maximum Forecast Flow:                        720 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/17/2026 07 AM PDT           65.68            543                Not Applicable
  04/17/2026 08 AM PDT           65.68            543         0      Not Applicable
  04/17/2026 09 AM PDT           65.67            541         -      Not Applicable
  04/17/2026 10 AM PDT           65.67            541         0      Not Applicable
  04/17/2026 11 AM PDT           65.66            539         -      Not Applicable
  04/17/2026 12 PM PDT           65.66            539         0      Not Applicable
  04/17/2026 01 PM PDT           65.66            539         0      Not Applicable
  04/17/2026 02 PM PDT           65.66            539         0      Not Applicable
  04/17/2026 03 PM PDT           65.66            539         0      Not Applicable
  04/17/2026 04 PM PDT           65.67            541         +      Not Applicable
  04/17/2026 05 PM PDT           65.67            541         0      Not Applicable
  04/17/2026 06 PM PDT           65.68            543         +      Not Applicable
  04/17/2026 07 PM PDT           65.68            543         0      Not Applicable
  04/17/2026 08 PM PDT           65.69            545         +      Not Applicable
  04/17/2026 09 PM PDT           65.69            545         0      Not Applicable
  04/17/2026 10 PM PDT           65.70            547         +      Not Applicable
  04/17/2026 11 PM PDT           65.70            547         0      Not Applicable
  04/18/2026 12 AM PDT           65.71            550         +      Not Applicable
  04/18/2026 01 AM PDT           65.71            550         0      Not Applicable
  04/18/2026 02 AM PDT           65.72            552         +      Not Applicable
  04/18/2026 03 AM PDT           65.72            552         0      Not Applicable
  04/18/2026 04 AM PDT           65.73            554         +      Not Applicable
  04/18/2026 05 AM PDT           65.74            556         +      Not Applicable
  04/18/2026 06 AM PDT           65.73            554         -      Not Applicable
  04/18/2026 07 AM PDT           65.73            554         0      Not Applicable
  04/18/2026 08 AM PDT           65.73            554         0      Not Applicable
  04/18/2026 09 AM PDT           65.74            556         +      Not Applicable
  04/18/2026 10 AM PDT           65.74            556         0      Not Applicable
  04/18/2026 11 AM PDT           65.75            559         +      Not Applicable
  04/18/2026 12 PM PDT           65.74            556         -      Not Applicable
  04/18/2026 01 PM PDT           65.74            556         0      Not Applicable
  04/18/2026 02 PM PDT           65.76            561         +      Not Applicable
  04/18/2026 03 PM PDT           65.76            561         0      Not Applicable
  04/18/2026 04 PM PDT           65.78            566         +      Not Applicable
  04/18/2026 05 PM PDT           65.78            566         0      Not Applicable
  04/18/2026 06 PM PDT           65.80            570         +      Not Applicable
  04/18/2026 07 PM PDT           65.81            572         +      Not Applicable
  04/18/2026 08 PM PDT           65.83            577         +      Not Applicable
  04/18/2026 09 PM PDT           65.84            579         +      Not Applicable
  04/18/2026 10 PM PDT           65.84            579         0      Not Applicable
  04/18/2026 11 PM PDT           65.86            584         +      Not Applicable
  04/19/2026 12 AM PDT           65.86            584         0      Not Applicable
  04/19/2026 01 AM PDT           65.87            586         +      Not Applicable
  04/19/2026 02 AM PDT           65.88            589         +      Not Applicable
  04/19/2026 03 AM PDT           65.88            589         0      Not Applicable
  04/19/2026 04 AM PDT           65.89            591         +      Not Applicable
  04/19/2026 05 AM PDT           65.89            591         0      Not Applicable
  04/19/2026 06 AM PDT           65.90            593         +      Not Applicable
  04/19/2026 07 AM PDT           65.90            593         0      Not Applicable
  04/19/2026 08 AM PDT           65.90            593         0      Not Applicable
  04/19/2026 09 AM PDT           65.91            596         +      Not Applicable
  04/19/2026 10 AM PDT           65.92            598         +      Not Applicable
  04/19/2026 11 AM PDT           65.91            596         -      Not Applicable
  04/19/2026 12 PM PDT           65.91            596         0      Not Applicable
  04/19/2026 01 PM PDT           65.92            598         +      Not Applicable
  04/19/2026 02 PM PDT           65.92            598         0      Not Applicable
  04/19/2026 03 PM PDT           65.92            598         0      Not Applicable
  04/19/2026 04 PM PDT           65.92            598         0      Not Applicable
  04/19/2026 05 PM PDT           65.92            598         0      Not Applicable
  04/19/2026 06 PM PDT           65.93            601         +      Not Applicable
  04/19/2026 07 PM PDT           65.94            603         +      Not Applicable
  04/19/2026 08 PM PDT           65.93            601         -      Not Applicable
  04/19/2026 09 PM PDT           65.94            603         +      Not Applicable
  04/19/2026 10 PM PDT           65.94            603         0      Not Applicable
  04/19/2026 11 PM PDT           65.95            605         +      Not Applicable
  04/20/2026 12 AM PDT           65.96            608         +      Not Applicable
  04/20/2026 01 AM PDT           65.95            605         -      Not Applicable
  04/20/2026 02 AM PDT           65.97            610         +      Not Applicable
  04/20/2026 03 AM PDT           65.99            615         +      Not Applicable
  04/20/2026 04 AM PDT           65.99            615         0      Not Applicable
  04/20/2026 05 AM PDT           66.00            617         +      Not Applicable
  04/20/2026 06 AM PDT           66.00            617         0      Not Applicable
  04/20/2026 07 AM PDT           66.02            622         +      Not Applicable
  04/20/2026 08 AM PDT           66.02            622         0      Not Applicable
  04/20/2026 09 AM PDT           66.03            625         +      Not Applicable
  04/20/2026 10 AM PDT           66.02            622         -      Not Applicable
  04/20/2026 11 AM PDT           66.04            627         +      Not Applicable
  04/20/2026 12 PM PDT           66.05            629         +      Not Applicable
  04/20/2026 01 PM PDT           66.05            629         0      Not Applicable
  04/20/2026 02 PM PDT           66.05            629         0      Not Applicable
  04/20/2026 03 PM PDT           66.05            629         0      Not Applicable
  04/20/2026 04 PM PDT           66.06            632         +      Not Applicable
  04/20/2026 05 PM PDT           66.07            634         +      Not Applicable
  04/20/2026 06 PM PDT           66.07            634         0      Not Applicable
  04/20/2026 07 PM PDT           66.07            634         0      Not Applicable
  04/20/2026 08 PM PDT           66.07            634         0      Not Applicable
  04/20/2026 09 PM PDT           66.07            634         0      Not Applicable
  04/20/2026 10 PM PDT           66.07            634         0      Not Applicable
  04/20/2026 11 PM PDT           66.07            634         0      Not Applicable
  04/21/2026 12 AM PDT           66.08            637         +      Not Applicable
  04/21/2026 01 AM PDT           66.09            639         +      Not Applicable
  04/21/2026 02 AM PDT           66.09            639         0      Not Applicable
  04/21/2026 03 AM PDT           66.11            644         +      Not Applicable
  04/21/2026 04 AM PDT           66.13            649         +      Not Applicable
  04/21/2026 05 AM PDT           66.15            654         +      Not Applicable
  04/21/2026 06 AM PDT           66.17            659         +      Not Applicable
  04/21/2026 07 AM PDT           66.18            662         +      Not Applicable
  04/21/2026 08 AM PDT           66.21            669         +      Not Applicable
  04/21/2026 09 AM PDT           66.20            667         -      Not Applicable
  04/21/2026 10 AM PDT           66.21            669         +      Not Applicable
  04/21/2026 11 AM PDT           66.22            672         +      Not Applicable
  04/21/2026 12 PM PDT           66.22            672         0      Not Applicable
  04/21/2026 01 PM PDT           66.23            674         +      Not Applicable
  04/21/2026 02 PM PDT           66.25            679         +      Not Applicable
  04/21/2026 03 PM PDT           66.26            682         +      Not Applicable
  04/21/2026 04 PM PDT           66.28            687         +      Not Applicable
  04/21/2026 05 PM PDT           66.29            690         +      Not Applicable
  04/21/2026 06 PM PDT           66.30            692         +      Not Applicable
  04/21/2026 07 PM PDT           66.31            695         +      Not Applicable
  04/21/2026 08 PM PDT           66.32            697         +      Not Applicable
  04/21/2026 09 PM PDT           66.32            697         0      Not Applicable
  04/21/2026 10 PM PDT           66.34            703         +      Not Applicable
  04/21/2026 11 PM PDT           66.33            700         -      Not Applicable
  04/22/2026 12 AM PDT           66.35            706         +      Not Applicable
  04/22/2026 01 AM PDT           66.35            706         0      Not Applicable
  04/22/2026 02 AM PDT           66.36            709         +      Not Applicable
  04/22/2026 03 AM PDT           66.38            714         +      Not Applicable
  04/22/2026 04 AM PDT           66.38            714         0      Not Applicable
  04/22/2026 05 AM PDT           66.39            717         +      Not Applicable
  04/22/2026 06 AM PDT           66.39            717         0      Not Applicable
  04/22/2026 07 AM PDT           66.39            717         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/22/2026 08 AM PDT           66.39            717                Not Applicable
  04/22/2026 09 AM PDT           66.39            717         0      Not Applicable
  04/22/2026 10 AM PDT           66.39            717         0      Not Applicable
  04/22/2026 11 AM PDT           66.39            717         0      Not Applicable
  04/22/2026 12 PM PDT           66.39            717         0      Not Applicable
  04/22/2026 01 PM PDT           66.40            720         +      Not Applicable
  04/22/2026 02 PM PDT           66.39            717         -      Not Applicable
  04/22/2026 03 PM PDT           66.39            717         0      Not Applicable
  04/22/2026 04 PM PDT           66.39            717         0      Not Applicable
  04/22/2026 05 PM PDT           66.38            714         -      Not Applicable
  04/22/2026 06 PM PDT           66.39            717         +      Not Applicable
  04/22/2026 07 PM PDT           66.39            717         0      Not Applicable
  04/22/2026 08 PM PDT           66.39            717         0      Not Applicable
  04/22/2026 09 PM PDT           66.39            717         0      Not Applicable
  04/22/2026 10 PM PDT           66.39            717         0      Not Applicable
  04/22/2026 11 PM PDT           66.39            717         0      Not Applicable
  04/23/2026 12 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 01 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 02 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 03 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 04 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 05 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 06 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 07 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 08 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 09 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 10 AM PDT           66.39            717         0      Not Applicable
  04/23/2026 11 AM PDT           66.38            714         -      Not Applicable
  04/23/2026 12 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 01 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 02 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 03 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 04 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 05 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 06 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 07 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 08 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 09 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 10 PM PDT           66.38            714         0      Not Applicable
  04/23/2026 11 PM PDT           66.38            714         0      Not Applicable
  04/24/2026 12 AM PDT           66.38            714         0      Not Applicable
  04/24/2026 01 AM PDT           66.38            714         0      Not Applicable
  04/24/2026 02 AM PDT           66.38            714         0      Not Applicable
  04/24/2026 03 AM PDT           66.38            714         0      Not Applicable
  04/24/2026 04 AM PDT           66.38            714         0      Not Applicable
  04/24/2026 05 AM PDT           66.38            714         0      Not Applicable
  04/24/2026 06 AM PDT           66.37            712         -      Not Applicable
  04/24/2026 07 AM PDT           66.37            712         0      Not Applicable
  04/24/2026 08 AM PDT           66.37            712         0      Not Applicable
  04/24/2026 09 AM PDT           66.37            712         0      Not Applicable
  04/24/2026 10 AM PDT           66.36            709         -      Not Applicable
  04/24/2026 11 AM PDT           66.36            709         0      Not Applicable
  04/24/2026 12 PM PDT           66.36            709         0      Not Applicable
  04/24/2026 01 PM PDT           66.36            709         0      Not Applicable
  04/24/2026 02 PM PDT           66.35            706         -      Not Applicable
  04/24/2026 03 PM PDT           66.35            706         0      Not Applicable
  04/24/2026 04 PM PDT           66.35            706         0      Not Applicable
  04/24/2026 05 PM PDT           66.35            706         0      Not Applicable
  04/24/2026 06 PM PDT           66.34            703         -      Not Applicable
  04/24/2026 07 PM PDT           66.34            703         0      Not Applicable
  04/24/2026 08 PM PDT           66.34            703         0      Not Applicable
  04/24/2026 09 PM PDT           66.34            703         0      Not Applicable
  04/24/2026 10 PM PDT           66.33            700         -      Not Applicable
  04/24/2026 11 PM PDT           66.33            700         0      Not Applicable
  04/25/2026 12 AM PDT           66.33            700         0      Not Applicable
  04/25/2026 01 AM PDT           66.33            700         0      Not Applicable
  04/25/2026 02 AM PDT           66.33            700         0      Not Applicable
  04/25/2026 03 AM PDT           66.32            697         -      Not Applicable
  04/25/2026 04 AM PDT           66.32            697         0      Not Applicable
  04/25/2026 05 AM PDT           66.32            697         0      Not Applicable
  04/25/2026 06 AM PDT           66.31            695         -      Not Applicable
  04/25/2026 07 AM PDT           66.31            695         0      Not Applicable
  04/25/2026 08 AM PDT           66.31            695         0      Not Applicable
  04/25/2026 09 AM PDT           66.31            695         0      Not Applicable
  04/25/2026 10 AM PDT           66.31            695         0      Not Applicable
  04/25/2026 11 AM PDT           66.30            692         -      Not Applicable
  04/25/2026 12 PM PDT           66.30            692         0      Not Applicable
  04/25/2026 01 PM PDT           66.30            692         0      Not Applicable
  04/25/2026 02 PM PDT           66.30            692         0      Not Applicable
  04/25/2026 03 PM PDT           66.29            690         -      Not Applicable
  04/25/2026 04 PM PDT           66.29            690         0      Not Applicable
  04/25/2026 05 PM PDT           66.29            690         0      Not Applicable
  04/25/2026 06 PM PDT           66.29            690         0      Not Applicable
  04/25/2026 07 PM PDT           66.29            690         0      Not Applicable
  04/25/2026 08 PM PDT           66.28            687         -      Not Applicable
  04/25/2026 09 PM PDT           66.28            687         0      Not Applicable
  04/25/2026 10 PM PDT           66.28            687         0      Not Applicable
  04/25/2026 11 PM PDT           66.28            687         0      Not Applicable
  04/26/2026 12 AM PDT           66.28            687         0      Not Applicable
  04/26/2026 01 AM PDT           66.28            687         0      Not Applicable
  04/26/2026 02 AM PDT           66.27            685         -      Not Applicable
  04/26/2026 03 AM PDT           66.27            685         0      Not Applicable
  04/26/2026 04 AM PDT           66.27            685         0      Not Applicable
  04/26/2026 05 AM PDT           66.27            685         0      Not Applicable
  04/26/2026 06 AM PDT           66.27            685         0      Not Applicable
  04/26/2026 07 AM PDT           66.26            682         -      Not Applicable
  04/26/2026 08 AM PDT           66.26            682         0      Not Applicable
  04/26/2026 09 AM PDT           66.26            682         0      Not Applicable
  04/26/2026 10 AM PDT           66.26            682         0      Not Applicable
  04/26/2026 11 AM PDT           66.26            682         0      Not Applicable
  04/26/2026 12 PM PDT           66.26            682         0      Not Applicable
  04/26/2026 01 PM PDT           66.25            679         -      Not Applicable
  04/26/2026 02 PM PDT           66.25            679         0      Not Applicable
  04/26/2026 03 PM PDT           66.25            679         0      Not Applicable
  04/26/2026 04 PM PDT           66.25            679         0      Not Applicable
  04/26/2026 05 PM PDT           66.25            679         0      Not Applicable
  04/26/2026 06 PM PDT           66.25            679         0      Not Applicable
  04/26/2026 07 PM PDT           66.24            677         -      Not Applicable
  04/26/2026 08 PM PDT           66.24            677         0      Not Applicable
  04/26/2026 09 PM PDT           66.24            677         0      Not Applicable
  04/26/2026 10 PM PDT           66.24            677         0      Not Applicable
  04/26/2026 11 PM PDT           66.24            677         0      Not Applicable
  04/27/2026 12 AM PDT           66.23            674         -      Not Applicable
  04/27/2026 01 AM PDT           66.23            674         0      Not Applicable
  04/27/2026 02 AM PDT           66.23            674         0      Not Applicable
  04/27/2026 03 AM PDT           66.23            674         0      Not Applicable
  04/27/2026 04 AM PDT           66.23            674         0      Not Applicable
  04/27/2026 05 AM PDT           66.22            672         -      Not Applicable
#
# 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.