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: May 01 2026 at 12:14 PM PDTNext Issuance: May 02 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:  05/01/2026 at 12:17 PM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/26/2026 at 12:00 PM PDT
# Maximum Observed Stage:                       66.07 Feet
# Maximum Observed Flow:                        634 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/05/2026 at 01:00 AM PDT
# Maximum Forecast Stage:                       65.46 Feet
# Maximum Forecast Flow:                        495 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/26/2026 12 PM PDT           66.07            634                Not Applicable
  04/26/2026 01 PM PDT           66.06            632         -      Not Applicable
  04/26/2026 02 PM PDT           66.06            632         0      Not Applicable
  04/26/2026 03 PM PDT           66.06            632         0      Not Applicable
  04/26/2026 04 PM PDT           66.05            629         -      Not Applicable
  04/26/2026 05 PM PDT           66.05            629         0      Not Applicable
  04/26/2026 06 PM PDT           66.05            629         0      Not Applicable
  04/26/2026 07 PM PDT           66.06            632         +      Not Applicable
  04/26/2026 08 PM PDT           66.05            629         -      Not Applicable
  04/26/2026 09 PM PDT           66.05            629         0      Not Applicable
  04/26/2026 10 PM PDT           66.06            632         +      Not Applicable
  04/26/2026 11 PM PDT           66.06            632         0      Not Applicable
  04/27/2026 12 AM PDT           66.05            629         -      Not Applicable
  04/27/2026 01 AM PDT           66.05            629         0      Not Applicable
  04/27/2026 02 AM PDT           66.06            632         +      Not Applicable
  04/27/2026 03 AM PDT           66.05            629         -      Not Applicable
  04/27/2026 04 AM PDT           66.06            632         +      Not Applicable
  04/27/2026 05 AM PDT           66.05            629         -      Not Applicable
  04/27/2026 06 AM PDT           66.05            629         0      Not Applicable
  04/27/2026 07 AM PDT           66.06            632         +      Not Applicable
  04/27/2026 08 AM PDT           66.05            629         -      Not Applicable
  04/27/2026 09 AM PDT           66.05            629         0      Not Applicable
  04/27/2026 10 AM PDT           66.05            629         0      Not Applicable
  04/27/2026 11 AM PDT           66.05            629         0      Not Applicable
  04/27/2026 12 PM PDT           66.05            629         0      Not Applicable
  04/27/2026 01 PM PDT           66.05            629         0      Not Applicable
  04/27/2026 02 PM PDT           66.05            629         0      Not Applicable
  04/27/2026 03 PM PDT           66.04            627         -      Not Applicable
  04/27/2026 04 PM PDT           66.04            627         0      Not Applicable
  04/27/2026 05 PM PDT           66.03            625         -      Not Applicable
  04/27/2026 06 PM PDT           66.04            627         +      Not Applicable
  04/27/2026 07 PM PDT           66.04            627         0      Not Applicable
  04/27/2026 08 PM PDT           66.03            625         -      Not Applicable
  04/27/2026 09 PM PDT           66.02            622         -      Not Applicable
  04/27/2026 10 PM PDT           66.00            617         -      Not Applicable
  04/27/2026 11 PM PDT           66.00            617         0      Not Applicable
  04/28/2026 12 AM PDT           65.98            613         -      Not Applicable
  04/28/2026 01 AM PDT           65.96            608         -      Not Applicable
  04/28/2026 02 AM PDT           65.94            603         -      Not Applicable
  04/28/2026 03 AM PDT           65.92            598         -      Not Applicable
  04/28/2026 04 AM PDT           65.90            593         -      Not Applicable
  04/28/2026 05 AM PDT           65.88            589         -      Not Applicable
  04/28/2026 06 AM PDT           65.85            582         -      Not Applicable
  04/28/2026 07 AM PDT           65.84            579         -      Not Applicable
  04/28/2026 08 AM PDT           65.82            575         -      Not Applicable
  04/28/2026 09 AM PDT           65.81            572         -      Not Applicable
  04/28/2026 10 AM PDT           65.79            568         -      Not Applicable
  04/28/2026 11 AM PDT           65.78            566         -      Not Applicable
  04/28/2026 12 PM PDT           65.77            563         -      Not Applicable
  04/28/2026 01 PM PDT           65.75            559         -      Not Applicable
  04/28/2026 02 PM PDT           65.75            559         0      Not Applicable
  04/28/2026 03 PM PDT           65.73            554         -      Not Applicable
  04/28/2026 04 PM PDT           65.71            550         -      Not Applicable
  04/28/2026 05 PM PDT           65.69            545         -      Not Applicable
  04/28/2026 06 PM PDT           65.67            541         -      Not Applicable
  04/28/2026 07 PM PDT           65.65            536         -      Not Applicable
  04/28/2026 08 PM PDT           65.64            534         -      Not Applicable
  04/28/2026 09 PM PDT           65.62            530         -      Not Applicable
  04/28/2026 10 PM PDT           65.61            527         -      Not Applicable
  04/28/2026 11 PM PDT           65.60            525         -      Not Applicable
  04/29/2026 12 AM PDT           65.59            523         -      Not Applicable
  04/29/2026 01 AM PDT           65.57            519         -      Not Applicable
  04/29/2026 02 AM PDT           65.58            521         +      Not Applicable
  04/29/2026 03 AM PDT           65.56            517         -      Not Applicable
  04/29/2026 04 AM PDT           65.56            517         0      Not Applicable
  04/29/2026 05 AM PDT           65.54            512         -      Not Applicable
  04/29/2026 06 AM PDT           65.55            514         +      Not Applicable
  04/29/2026 07 AM PDT           65.54            512         -      Not Applicable
  04/29/2026 08 AM PDT           65.52            508         -      Not Applicable
  04/29/2026 09 AM PDT           65.53            510         +      Not Applicable
  04/29/2026 10 AM PDT           65.52            508         -      Not Applicable
  04/29/2026 11 AM PDT           65.51            506         -      Not Applicable
  04/29/2026 12 PM PDT           65.50            504         -      Not Applicable
  04/29/2026 01 PM PDT           65.49            501         -      Not Applicable
  04/29/2026 02 PM PDT           65.49            501         0      Not Applicable
  04/29/2026 03 PM PDT           65.48            499         -      Not Applicable
  04/29/2026 04 PM PDT           65.48            499         0      Not Applicable
  04/29/2026 05 PM PDT           65.47            497         -      Not Applicable
  04/29/2026 06 PM PDT           65.46            495         -      Not Applicable
  04/29/2026 07 PM PDT           65.44            491         -      Not Applicable
  04/29/2026 08 PM PDT           65.43            489         -      Not Applicable
  04/29/2026 09 PM PDT           65.43            489         0      Not Applicable
  04/29/2026 10 PM PDT           65.42            487         -      Not Applicable
  04/29/2026 11 PM PDT           65.41            485         -      Not Applicable
  04/30/2026 12 AM PDT           65.41            485         0      Not Applicable
  04/30/2026 01 AM PDT           65.40            482         -      Not Applicable
  04/30/2026 02 AM PDT           65.39            480         -      Not Applicable
  04/30/2026 03 AM PDT           65.38            478         -      Not Applicable
  04/30/2026 04 AM PDT           65.38            478         0      Not Applicable
  04/30/2026 05 AM PDT           65.37            476         -      Not Applicable
  04/30/2026 06 AM PDT           65.37            476         0      Not Applicable
  04/30/2026 07 AM PDT           65.37            476         0      Not Applicable
  04/30/2026 08 AM PDT           65.36            474         -      Not Applicable
  04/30/2026 09 AM PDT           65.35            472         -      Not Applicable
  04/30/2026 10 AM PDT           65.35            472         0      Not Applicable
  04/30/2026 11 AM PDT           65.35            472         0      Not Applicable
  04/30/2026 12 PM PDT           65.35            472         0      Not Applicable
  04/30/2026 01 PM PDT           65.33            468         -      Not Applicable
  04/30/2026 02 PM PDT           65.34            470         +      Not Applicable
  04/30/2026 03 PM PDT           65.34            470         0      Not Applicable
  04/30/2026 04 PM PDT           65.33            468         -      Not Applicable
  04/30/2026 05 PM PDT           65.33            468         0      Not Applicable
  04/30/2026 06 PM PDT           65.33            468         0      Not Applicable
  04/30/2026 07 PM PDT           65.32            466         -      Not Applicable
  04/30/2026 08 PM PDT           65.32            466         0      Not Applicable
  04/30/2026 09 PM PDT           65.32            466         0      Not Applicable
  04/30/2026 10 PM PDT           65.32            466         0      Not Applicable
  04/30/2026 11 PM PDT           65.31            464         -      Not Applicable
  05/01/2026 12 AM PDT           65.32            466         +      Not Applicable
  05/01/2026 01 AM PDT           65.31            464         -      Not Applicable
  05/01/2026 02 AM PDT           65.31            464         0      Not Applicable
  05/01/2026 03 AM PDT           65.31            464         0      Not Applicable
  05/01/2026 04 AM PDT           65.31            464         0      Not Applicable
  05/01/2026 05 AM PDT           65.30            462         -      Not Applicable
  05/01/2026 06 AM PDT           65.30            462         0      Not Applicable
  05/01/2026 07 AM PDT           65.30            462         0      Not Applicable
  05/01/2026 08 AM PDT           65.29            460         -      Not Applicable
  05/01/2026 09 AM PDT           65.30            462         +      Not Applicable
  05/01/2026 10 AM PDT           65.29            460         -      Not Applicable
  05/01/2026 11 AM PDT           65.29            460         0      Not Applicable
  05/01/2026 12 PM PDT           65.29            460         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/01/2026 01 PM PDT           65.29            460                Not Applicable
  05/01/2026 02 PM PDT           65.29            460         0      Not Applicable
  05/01/2026 03 PM PDT           65.29            460         0      Not Applicable
  05/01/2026 04 PM PDT           65.29            460         0      Not Applicable
  05/01/2026 05 PM PDT           65.29            460         0      Not Applicable
  05/01/2026 06 PM PDT           65.29            460         0      Not Applicable
  05/01/2026 07 PM PDT           65.29            460         0      Not Applicable
  05/01/2026 08 PM PDT           65.30            462         +      Not Applicable
  05/01/2026 09 PM PDT           65.30            462         0      Not Applicable
  05/01/2026 10 PM PDT           65.30            462         0      Not Applicable
  05/01/2026 11 PM PDT           65.31            464         +      Not Applicable
  05/02/2026 12 AM PDT           65.31            464         0      Not Applicable
  05/02/2026 01 AM PDT           65.31            464         0      Not Applicable
  05/02/2026 02 AM PDT           65.31            464         0      Not Applicable
  05/02/2026 03 AM PDT           65.31            464         0      Not Applicable
  05/02/2026 04 AM PDT           65.32            466         +      Not Applicable
  05/02/2026 05 AM PDT           65.32            466         0      Not Applicable
  05/02/2026 06 AM PDT           65.32            466         0      Not Applicable
  05/02/2026 07 AM PDT           65.33            468         +      Not Applicable
  05/02/2026 08 AM PDT           65.33            468         0      Not Applicable
  05/02/2026 09 AM PDT           65.33            468         0      Not Applicable
  05/02/2026 10 AM PDT           65.34            470         +      Not Applicable
  05/02/2026 11 AM PDT           65.34            470         0      Not Applicable
  05/02/2026 12 PM PDT           65.34            470         0      Not Applicable
  05/02/2026 01 PM PDT           65.35            472         +      Not Applicable
  05/02/2026 02 PM PDT           65.35            472         0      Not Applicable
  05/02/2026 03 PM PDT           65.35            472         0      Not Applicable
  05/02/2026 04 PM PDT           65.36            474         +      Not Applicable
  05/02/2026 05 PM PDT           65.36            474         0      Not Applicable
  05/02/2026 06 PM PDT           65.36            474         0      Not Applicable
  05/02/2026 07 PM PDT           65.37            476         +      Not Applicable
  05/02/2026 08 PM PDT           65.37            476         0      Not Applicable
  05/02/2026 09 PM PDT           65.37            476         0      Not Applicable
  05/02/2026 10 PM PDT           65.38            478         +      Not Applicable
  05/02/2026 11 PM PDT           65.38            478         0      Not Applicable
  05/03/2026 12 AM PDT           65.38            478         0      Not Applicable
  05/03/2026 01 AM PDT           65.39            480         +      Not Applicable
  05/03/2026 02 AM PDT           65.39            480         0      Not Applicable
  05/03/2026 03 AM PDT           65.39            480         0      Not Applicable
  05/03/2026 04 AM PDT           65.39            480         0      Not Applicable
  05/03/2026 05 AM PDT           65.40            482         +      Not Applicable
  05/03/2026 06 AM PDT           65.40            482         0      Not Applicable
  05/03/2026 07 AM PDT           65.40            482         0      Not Applicable
  05/03/2026 08 AM PDT           65.40            482         0      Not Applicable
  05/03/2026 09 AM PDT           65.41            485         +      Not Applicable
  05/03/2026 10 AM PDT           65.41            485         0      Not Applicable
  05/03/2026 11 AM PDT           65.41            485         0      Not Applicable
  05/03/2026 12 PM PDT           65.41            485         0      Not Applicable
  05/03/2026 01 PM PDT           65.41            485         0      Not Applicable
  05/03/2026 02 PM PDT           65.42            487         +      Not Applicable
  05/03/2026 03 PM PDT           65.42            487         0      Not Applicable
  05/03/2026 04 PM PDT           65.42            487         0      Not Applicable
  05/03/2026 05 PM PDT           65.42            487         0      Not Applicable
  05/03/2026 06 PM PDT           65.42            487         0      Not Applicable
  05/03/2026 07 PM PDT           65.42            487         0      Not Applicable
  05/03/2026 08 PM PDT           65.43            489         +      Not Applicable
  05/03/2026 09 PM PDT           65.43            489         0      Not Applicable
  05/03/2026 10 PM PDT           65.43            489         0      Not Applicable
  05/03/2026 11 PM PDT           65.43            489         0      Not Applicable
  05/04/2026 12 AM PDT           65.43            489         0      Not Applicable
  05/04/2026 01 AM PDT           65.44            491         +      Not Applicable
  05/04/2026 02 AM PDT           65.44            491         0      Not Applicable
  05/04/2026 03 AM PDT           65.44            491         0      Not Applicable
  05/04/2026 04 AM PDT           65.44            491         0      Not Applicable
  05/04/2026 05 AM PDT           65.44            491         0      Not Applicable
  05/04/2026 06 AM PDT           65.44            491         0      Not Applicable
  05/04/2026 07 AM PDT           65.44            491         0      Not Applicable
  05/04/2026 08 AM PDT           65.44            491         0      Not Applicable
  05/04/2026 09 AM PDT           65.44            491         0      Not Applicable
  05/04/2026 10 AM PDT           65.44            491         0      Not Applicable
  05/04/2026 11 AM PDT           65.45            493         +      Not Applicable
  05/04/2026 12 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 01 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 02 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 03 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 04 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 05 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 06 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 07 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 08 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 09 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 10 PM PDT           65.45            493         0      Not Applicable
  05/04/2026 11 PM PDT           65.45            493         0      Not Applicable
  05/05/2026 12 AM PDT           65.45            493         0      Not Applicable
  05/05/2026 01 AM PDT           65.46            495         +      Not Applicable
  05/05/2026 02 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 03 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 04 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 05 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 06 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 07 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 08 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 09 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 10 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 11 AM PDT           65.46            495         0      Not Applicable
  05/05/2026 12 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 01 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 02 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 03 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 04 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 05 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 06 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 07 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 08 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 09 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 10 PM PDT           65.46            495         0      Not Applicable
  05/05/2026 11 PM PDT           65.46            495         0      Not Applicable
  05/06/2026 12 AM PDT           65.46            495         0      Not Applicable
  05/06/2026 01 AM PDT           65.46            495         0      Not Applicable
  05/06/2026 02 AM PDT           65.46            495         0      Not Applicable
  05/06/2026 03 AM PDT           65.46            495         0      Not Applicable
  05/06/2026 04 AM PDT           65.46            495         0      Not Applicable
  05/06/2026 05 AM PDT           65.46            495         0      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.