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 17 2026 at 7:42 AM PDTNext Issuance: Apr 18 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:  04/17/2026 at 07:44 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/16/2026 at 09:00 AM PDT
# Maximum Observed Stage:                       65.96 Feet
# Maximum Observed Flow:                        396 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/17/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       65.70 Feet
# Maximum Forecast Flow:                        349 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/12/2026 07 AM PDT           65.04            246                Not Applicable
  04/12/2026 08 AM PDT           65.05            248         +      Not Applicable
  04/12/2026 09 AM PDT           65.05            248         0      Not Applicable
  04/12/2026 10 AM PDT           65.05            248         0      Not Applicable
  04/12/2026 11 AM PDT           65.06            249         +      Not Applicable
  04/12/2026 12 PM PDT           65.05            248         -      Not Applicable
  04/12/2026 01 PM PDT           65.07            251         +      Not Applicable
  04/12/2026 02 PM PDT           65.07            251         0      Not Applicable
  04/12/2026 03 PM PDT           65.07            251         0      Not Applicable
  04/12/2026 04 PM PDT           65.07            251         0      Not Applicable
  04/12/2026 05 PM PDT           65.06            249         -      Not Applicable
  04/12/2026 06 PM PDT           65.06            249         0      Not Applicable
  04/12/2026 07 PM PDT           65.05            248         -      Not Applicable
  04/12/2026 08 PM PDT           65.05            248         0      Not Applicable
  04/12/2026 09 PM PDT           65.04            246         -      Not Applicable
  04/12/2026 10 PM PDT           65.05            248         +      Not Applicable
  04/12/2026 11 PM PDT           65.05            248         0      Not Applicable
  04/13/2026 12 AM PDT           65.04            246         -      Not Applicable
  04/13/2026 01 AM PDT           65.05            248         +      Not Applicable
  04/13/2026 02 AM PDT           65.05            248         0      Not Applicable
  04/13/2026 03 AM PDT           65.05            248         0      Not Applicable
  04/13/2026 04 AM PDT           65.05            248         0      Not Applicable
  04/13/2026 05 AM PDT           65.05            248         0      Not Applicable
  04/13/2026 06 AM PDT           65.05            248         0      Not Applicable
  04/13/2026 07 AM PDT           65.05            248         0      Not Applicable
  04/13/2026 08 AM PDT           65.06            249         +      Not Applicable
  04/13/2026 09 AM PDT           65.06            249         0      Not Applicable
  04/13/2026 10 AM PDT           65.06            249         0      Not Applicable
  04/13/2026 11 AM PDT           65.06            249         0      Not Applicable
  04/13/2026 12 PM PDT           65.07            251         +      Not Applicable
  04/13/2026 01 PM PDT           65.07            251         0      Not Applicable
  04/13/2026 02 PM PDT           65.08            252         +      Not Applicable
  04/13/2026 03 PM PDT           65.08            252         0      Not Applicable
  04/13/2026 04 PM PDT           65.08            252         0      Not Applicable
  04/13/2026 05 PM PDT           65.08            252         0      Not Applicable
  04/13/2026 06 PM PDT           65.08            252         0      Not Applicable
  04/13/2026 07 PM PDT           65.09            253         +      Not Applicable
  04/13/2026 08 PM PDT           65.09            253         0      Not Applicable
  04/13/2026 09 PM PDT           65.09            253         0      Not Applicable
  04/13/2026 10 PM PDT           65.10            255         +      Not Applicable
  04/13/2026 11 PM PDT           65.10            255         0      Not Applicable
  04/14/2026 12 AM PDT           65.10            255         0      Not Applicable
  04/14/2026 01 AM PDT           65.10            255         0      Not Applicable
  04/14/2026 02 AM PDT           65.10            255         0      Not Applicable
  04/14/2026 03 AM PDT           65.11            256         +      Not Applicable
  04/14/2026 04 AM PDT           65.11            256         0      Not Applicable
  04/14/2026 05 AM PDT           65.11            256         0      Not Applicable
  04/14/2026 06 AM PDT           65.11            256         0      Not Applicable
  04/14/2026 07 AM PDT           65.11            256         0      Not Applicable
  04/14/2026 08 AM PDT           65.12            258         +      Not Applicable
  04/14/2026 09 AM PDT           65.12            258         0      Not Applicable
  04/14/2026 10 AM PDT           65.11            256         -      Not Applicable
  04/14/2026 11 AM PDT           65.12            258         +      Not Applicable
  04/14/2026 12 PM PDT           65.12            258         0      Not Applicable
  04/14/2026 01 PM PDT           65.11            256         -      Not Applicable
  04/14/2026 02 PM PDT           65.11            256         0      Not Applicable
  04/14/2026 03 PM PDT           65.12            258         +      Not Applicable
  04/14/2026 04 PM PDT           65.12            258         0      Not Applicable
  04/14/2026 05 PM PDT           65.11            256         -      Not Applicable
  04/14/2026 06 PM PDT           65.11            256         0      Not Applicable
  04/14/2026 07 PM PDT           65.12            258         +      Not Applicable
  04/14/2026 08 PM PDT           65.13            259         +      Not Applicable
  04/14/2026 09 PM PDT           65.13            259         0      Not Applicable
  04/14/2026 10 PM PDT           65.15            262         +      Not Applicable
  04/14/2026 11 PM PDT           65.16            264         +      Not Applicable
  04/15/2026 12 AM PDT           65.18            266         +      Not Applicable
  04/15/2026 01 AM PDT           65.19            268         +      Not Applicable
  04/15/2026 02 AM PDT           65.21            271         +      Not Applicable
  04/15/2026 03 AM PDT           65.24            275         +      Not Applicable
  04/15/2026 04 AM PDT           65.26            278         +      Not Applicable
  04/15/2026 05 AM PDT           65.29            283         +      Not Applicable
  04/15/2026 06 AM PDT           65.33            289         +      Not Applicable
  04/15/2026 07 AM PDT           65.36            294         +      Not Applicable
  04/15/2026 08 AM PDT           65.40            300         +      Not Applicable
  04/15/2026 09 AM PDT           65.44            306         +      Not Applicable
  04/15/2026 10 AM PDT           65.47            311         +      Not Applicable
  04/15/2026 11 AM PDT           65.50            316         +      Not Applicable
  04/15/2026 12 PM PDT           65.54            322         +      Not Applicable
  04/15/2026 01 PM PDT           65.58            329         +      Not Applicable
  04/15/2026 02 PM PDT           65.62            336         +      Not Applicable
  04/15/2026 03 PM PDT           65.64            339         +      Not Applicable
  04/15/2026 04 PM PDT           65.68            346         +      Not Applicable
  04/15/2026 05 PM PDT           65.70            349         +      Not Applicable
  04/15/2026 06 PM PDT           65.73            355         +      Not Applicable
  04/15/2026 07 PM PDT           65.75            358         +      Not Applicable
  04/15/2026 08 PM PDT           65.77            362         +      Not Applicable
  04/15/2026 09 PM PDT           65.79            365         +      Not Applicable
  04/15/2026 10 PM PDT           65.81            369         +      Not Applicable
  04/15/2026 11 PM PDT           65.84            374         +      Not Applicable
  04/16/2026 12 AM PDT           65.85            376         +      Not Applicable
  04/16/2026 01 AM PDT           65.87            379         +      Not Applicable
  04/16/2026 02 AM PDT           65.90            385         +      Not Applicable
  04/16/2026 03 AM PDT           65.91            387         +      Not Applicable
  04/16/2026 04 AM PDT           65.92            388         +      Not Applicable
  04/16/2026 05 AM PDT           65.93            390         +      Not Applicable
  04/16/2026 06 AM PDT           65.94            392         +      Not Applicable
  04/16/2026 07 AM PDT           65.95            394         +      Not Applicable
  04/16/2026 08 AM PDT           65.96            396         +      Not Applicable
  04/16/2026 09 AM PDT           65.96            396         0      Not Applicable
  04/16/2026 10 AM PDT           65.95            394         -      Not Applicable
  04/16/2026 11 AM PDT           65.94            392         -      Not Applicable
  04/16/2026 12 PM PDT           65.95            394         +      Not Applicable
  04/16/2026 01 PM PDT           65.93            390         -      Not Applicable
  04/16/2026 02 PM PDT           65.93            390         0      Not Applicable
  04/16/2026 03 PM PDT           65.91            387         -      Not Applicable
  04/16/2026 04 PM PDT           65.90            385         -      Not Applicable
  04/16/2026 05 PM PDT           65.87            379         -      Not Applicable
  04/16/2026 06 PM PDT           65.85            376         -      Not Applicable
  04/16/2026 07 PM PDT           65.83            372         -      Not Applicable
  04/16/2026 08 PM PDT           65.81            369         -      Not Applicable
  04/16/2026 09 PM PDT           65.79            365         -      Not Applicable
  04/16/2026 10 PM PDT           65.78            363         -      Not Applicable
  04/16/2026 11 PM PDT           65.76            360         -      Not Applicable
  04/17/2026 12 AM PDT           65.74            356         -      Not Applicable
  04/17/2026 01 AM PDT           65.73            355         -      Not Applicable
  04/17/2026 02 AM PDT           65.71            351         -      Not Applicable
  04/17/2026 03 AM PDT           65.70            349         -      Not Applicable
  04/17/2026 04 AM PDT           65.70            349         0      Not Applicable
  04/17/2026 05 AM PDT           65.69            348         -      Not Applicable
  04/17/2026 06 AM PDT           65.69            348         0      Not Applicable
  04/17/2026 07 AM PDT           65.70            349         +      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/17/2026 08 AM PDT           65.70            349                Not Applicable
  04/17/2026 09 AM PDT           65.70            349         0      Not Applicable
  04/17/2026 10 AM PDT           65.70            349         0      Not Applicable
  04/17/2026 11 AM PDT           65.70            349         0      Not Applicable
  04/17/2026 12 PM PDT           65.70            349         0      Not Applicable
  04/17/2026 01 PM PDT           65.70            349         0      Not Applicable
  04/17/2026 02 PM PDT           65.70            349         0      Not Applicable
  04/17/2026 03 PM PDT           65.69            348         -      Not Applicable
  04/17/2026 04 PM PDT           65.69            348         0      Not Applicable
  04/17/2026 05 PM PDT           65.69            348         0      Not Applicable
  04/17/2026 06 PM PDT           65.69            348         0      Not Applicable
  04/17/2026 07 PM PDT           65.69            348         0      Not Applicable
  04/17/2026 08 PM PDT           65.68            346         -      Not Applicable
  04/17/2026 09 PM PDT           65.68            346         0      Not Applicable
  04/17/2026 10 PM PDT           65.68            346         0      Not Applicable
  04/17/2026 11 PM PDT           65.67            344         -      Not Applicable
  04/18/2026 12 AM PDT           65.67            344         0      Not Applicable
  04/18/2026 01 AM PDT           65.67            344         0      Not Applicable
  04/18/2026 02 AM PDT           65.67            344         0      Not Applicable
  04/18/2026 03 AM PDT           65.66            342         -      Not Applicable
  04/18/2026 04 AM PDT           65.66            342         0      Not Applicable
  04/18/2026 05 AM PDT           65.66            342         0      Not Applicable
  04/18/2026 06 AM PDT           65.65            341         -      Not Applicable
  04/18/2026 07 AM PDT           65.65            341         0      Not Applicable
  04/18/2026 08 AM PDT           65.64            339         -      Not Applicable
  04/18/2026 09 AM PDT           65.64            339         0      Not Applicable
  04/18/2026 10 AM PDT           65.64            339         0      Not Applicable
  04/18/2026 11 AM PDT           65.64            339         0      Not Applicable
  04/18/2026 12 PM PDT           65.63            337         -      Not Applicable
  04/18/2026 01 PM PDT           65.63            337         0      Not Applicable
  04/18/2026 02 PM PDT           65.62            336         -      Not Applicable
  04/18/2026 03 PM PDT           65.62            336         0      Not Applicable
  04/18/2026 04 PM PDT           65.61            334         -      Not Applicable
  04/18/2026 05 PM PDT           65.61            334         0      Not Applicable
  04/18/2026 06 PM PDT           65.60            332         -      Not Applicable
  04/18/2026 07 PM PDT           65.60            332         0      Not Applicable
  04/18/2026 08 PM PDT           65.59            331         -      Not Applicable
  04/18/2026 09 PM PDT           65.59            331         0      Not Applicable
  04/18/2026 10 PM PDT           65.58            329         -      Not Applicable
  04/18/2026 11 PM PDT           65.58            329         0      Not Applicable
  04/19/2026 12 AM PDT           65.57            327         -      Not Applicable
  04/19/2026 01 AM PDT           65.56            326         -      Not Applicable
  04/19/2026 02 AM PDT           65.56            326         0      Not Applicable
  04/19/2026 03 AM PDT           65.55            324         -      Not Applicable
  04/19/2026 04 AM PDT           65.55            324         0      Not Applicable
  04/19/2026 05 AM PDT           65.54            322         -      Not Applicable
  04/19/2026 06 AM PDT           65.54            322         0      Not Applicable
  04/19/2026 07 AM PDT           65.53            321         -      Not Applicable
  04/19/2026 08 AM PDT           65.52            319         -      Not Applicable
  04/19/2026 09 AM PDT           65.52            319         0      Not Applicable
  04/19/2026 10 AM PDT           65.51            318         -      Not Applicable
  04/19/2026 11 AM PDT           65.50            316         -      Not Applicable
  04/19/2026 12 PM PDT           65.50            316         0      Not Applicable
  04/19/2026 01 PM PDT           65.50            316         0      Not Applicable
  04/19/2026 02 PM PDT           65.49            314         -      Not Applicable
  04/19/2026 03 PM PDT           65.48            313         -      Not Applicable
  04/19/2026 04 PM PDT           65.47            311         -      Not Applicable
  04/19/2026 05 PM PDT           65.47            311         0      Not Applicable
  04/19/2026 06 PM PDT           65.47            311         0      Not Applicable
  04/19/2026 07 PM PDT           65.46            309         -      Not Applicable
  04/19/2026 08 PM PDT           65.45            308         -      Not Applicable
  04/19/2026 09 PM PDT           65.44            306         -      Not Applicable
  04/19/2026 10 PM PDT           65.44            306         0      Not Applicable
  04/19/2026 11 PM PDT           65.43            305         -      Not Applicable
  04/20/2026 12 AM PDT           65.42            303         -      Not Applicable
  04/20/2026 01 AM PDT           65.42            303         0      Not Applicable
  04/20/2026 02 AM PDT           65.42            303         0      Not Applicable
  04/20/2026 03 AM PDT           65.41            301         -      Not Applicable
  04/20/2026 04 AM PDT           65.40            300         -      Not Applicable
  04/20/2026 05 AM PDT           65.39            298         -      Not Applicable
  04/20/2026 06 AM PDT           65.39            298         0      Not Applicable
  04/20/2026 07 AM PDT           65.38            297         -      Not Applicable
  04/20/2026 08 AM PDT           65.37            295         -      Not Applicable
  04/20/2026 09 AM PDT           65.37            295         0      Not Applicable
  04/20/2026 10 AM PDT           65.36            294         -      Not Applicable
  04/20/2026 11 AM PDT           65.35            292         -      Not Applicable
  04/20/2026 12 PM PDT           65.35            292         0      Not Applicable
  04/20/2026 01 PM PDT           65.34            291         -      Not Applicable
  04/20/2026 02 PM PDT           65.33            289         -      Not Applicable
  04/20/2026 03 PM PDT           65.33            289         0      Not Applicable
  04/20/2026 04 PM PDT           65.32            287         -      Not Applicable
  04/20/2026 05 PM PDT           65.32            287         0      Not Applicable
  04/20/2026 06 PM PDT           65.31            286         -      Not Applicable
  04/20/2026 07 PM PDT           65.30            284         -      Not Applicable
  04/20/2026 08 PM PDT           65.29            283         -      Not Applicable
  04/20/2026 09 PM PDT           65.29            283         0      Not Applicable
  04/20/2026 10 PM PDT           65.28            281         -      Not Applicable
  04/20/2026 11 PM PDT           65.27            280         -      Not Applicable
  04/21/2026 12 AM PDT           65.27            280         0      Not Applicable
  04/21/2026 01 AM PDT           65.26            278         -      Not Applicable
  04/21/2026 02 AM PDT           65.25            277         -      Not Applicable
  04/21/2026 03 AM PDT           65.25            277         0      Not Applicable
  04/21/2026 04 AM PDT           65.24            275         -      Not Applicable
  04/21/2026 05 AM PDT           65.23            274         -      Not Applicable
  04/21/2026 06 AM PDT           65.22            272         -      Not Applicable
  04/21/2026 07 AM PDT           65.22            272         0      Not Applicable
  04/21/2026 08 AM PDT           65.21            271         -      Not Applicable
  04/21/2026 09 AM PDT           65.20            269         -      Not Applicable
  04/21/2026 10 AM PDT           65.20            269         0      Not Applicable
  04/21/2026 11 AM PDT           65.19            268         -      Not Applicable
  04/21/2026 12 PM PDT           65.18            266         -      Not Applicable
  04/21/2026 01 PM PDT           65.18            266         0      Not Applicable
  04/21/2026 02 PM PDT           65.17            265         -      Not Applicable
  04/21/2026 03 PM PDT           65.16            264         -      Not Applicable
  04/21/2026 04 PM PDT           65.15            262         -      Not Applicable
  04/21/2026 05 PM PDT           65.14            261         -      Not Applicable
  04/21/2026 06 PM PDT           65.14            261         0      Not Applicable
  04/21/2026 07 PM PDT           65.13            259         -      Not Applicable
  04/21/2026 08 PM PDT           65.12            258         -      Not Applicable
  04/21/2026 09 PM PDT           65.12            258         0      Not Applicable
  04/21/2026 10 PM PDT           65.11            256         -      Not Applicable
  04/21/2026 11 PM PDT           65.10            255         -      Not Applicable
  04/22/2026 12 AM PDT           65.09            253         -      Not Applicable
  04/22/2026 01 AM PDT           65.09            253         0      Not Applicable
  04/22/2026 02 AM PDT           65.08            252         -      Not Applicable
  04/22/2026 03 AM PDT           65.07            251         -      Not Applicable
  04/22/2026 04 AM PDT           65.06            249         -      Not Applicable
  04/22/2026 05 AM PDT           65.06            249         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.