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 Feet
Location: Merced County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Dec 27 2025 at 9:54 AM PSTNext Issuance: Dec 28 2025 at 9:00 AM PST
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:  12/27/2025 at 09:56 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/27/2025 at 09:00 AM PST
# Maximum Observed Stage:                       64.01 Feet
# Maximum Observed Flow:                        227 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/28/2025 at 07:00 AM PST
# Maximum Forecast Stage:                       64.09 Feet
# Maximum Forecast Flow:                        234 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/22/2025 09 AM PST           63.28            162                Not Applicable
  12/22/2025 10 AM PST           63.29            163         +      Not Applicable
  12/22/2025 11 AM PST           63.28            162         -      Not Applicable
  12/22/2025 12 PM PST           63.28            162         0      Not Applicable
  12/22/2025 01 PM PST           63.28            162         0      Not Applicable
  12/22/2025 02 PM PST           63.29            163         +      Not Applicable
  12/22/2025 03 PM PST           63.30            164         +      Not Applicable
  12/22/2025 04 PM PST           63.30            164         0      Not Applicable
  12/22/2025 05 PM PST           63.30            164         0      Not Applicable
  12/22/2025 06 PM PST           63.30            164         0      Not Applicable
  12/22/2025 07 PM PST           63.30            164         0      Not Applicable
  12/22/2025 08 PM PST           63.29            163         -      Not Applicable
  12/22/2025 09 PM PST           63.30            164         +      Not Applicable
  12/22/2025 10 PM PST           63.30            164         0      Not Applicable
  12/22/2025 11 PM PST           63.30            164         0      Not Applicable
  12/23/2025 12 AM PST           63.30            164         0      Not Applicable
  12/23/2025 01 AM PST           63.30            164         0      Not Applicable
  12/23/2025 02 AM PST           63.30            164         0      Not Applicable
  12/23/2025 03 AM PST           63.30            164         0      Not Applicable
  12/23/2025 04 AM PST           63.30            164         0      Not Applicable
  12/23/2025 05 AM PST           63.30            164         0      Not Applicable
  12/23/2025 06 AM PST           63.30            164         0      Not Applicable
  12/23/2025 07 AM PST           63.30            164         0      Not Applicable
  12/23/2025 08 AM PST           63.30            164         0      Not Applicable
  12/23/2025 09 AM PST           63.30            164         0      Not Applicable
  12/23/2025 10 AM PST           63.30            164         0      Not Applicable
  12/23/2025 11 AM PST           63.30            164         0      Not Applicable
  12/23/2025 12 PM PST           63.29            163         -      Not Applicable
  12/23/2025 01 PM PST           63.30            164         +      Not Applicable
  12/23/2025 02 PM PST           63.30            164         0      Not Applicable
  12/23/2025 03 PM PST           63.30            164         0      Not Applicable
  12/23/2025 04 PM PST           63.32            165         +      Not Applicable
  12/23/2025 05 PM PST           63.30            164         -      Not Applicable
  12/23/2025 06 PM PST           63.32            165         +      Not Applicable
  12/23/2025 07 PM PST           63.32            165         0      Not Applicable
  12/23/2025 08 PM PST           63.32            165         0      Not Applicable
  12/23/2025 09 PM PST           63.32            165         0      Not Applicable
  12/23/2025 10 PM PST           63.33            166         +      Not Applicable
  12/23/2025 11 PM PST           63.34            167         +      Not Applicable
  12/24/2025 12 AM PST           63.33            166         -      Not Applicable
  12/24/2025 01 AM PST           63.35            168         +      Not Applicable
  12/24/2025 02 AM PST           63.36            169         +      Not Applicable
  12/24/2025 03 AM PST           63.38            170         +      Not Applicable
  12/24/2025 04 AM PST           63.38            170         0      Not Applicable
  12/24/2025 05 AM PST           63.39            171         +      Not Applicable
  12/24/2025 06 AM PST           63.39            171         0      Not Applicable
  12/24/2025 07 AM PST           63.41            173         +      Not Applicable
  12/24/2025 08 AM PST           63.42            174         +      Not Applicable
  12/24/2025 09 AM PST           63.42            174         0      Not Applicable
  12/24/2025 10 AM PST           63.44            175         +      Not Applicable
  12/24/2025 11 AM PST           63.45            176         +      Not Applicable
  12/24/2025 12 PM PST           63.46            177         +      Not Applicable
  12/24/2025 01 PM PST           63.49            180         +      Not Applicable
  12/24/2025 02 PM PST           63.49            180         0      Not Applicable
  12/24/2025 03 PM PST           63.50            181         +      Not Applicable
  12/24/2025 04 PM PST           63.50            181         0      Not Applicable
  12/24/2025 05 PM PST           63.53            183         +      Not Applicable
  12/24/2025 06 PM PST           63.53            183         0      Not Applicable
  12/24/2025 07 PM PST           63.53            183         0      Not Applicable
  12/24/2025 08 PM PST           63.54            184         +      Not Applicable
  12/24/2025 09 PM PST           63.54            184         0      Not Applicable
  12/24/2025 10 PM PST           63.53            183         -      Not Applicable
  12/24/2025 11 PM PST           63.55            185         +      Not Applicable
  12/25/2025 12 AM PST           63.55            185         0      Not Applicable
  12/25/2025 01 AM PST           63.53            183         -      Not Applicable
  12/25/2025 02 AM PST           63.53            183         0      Not Applicable
  12/25/2025 03 AM PST           63.54            184         +      Not Applicable
  12/25/2025 04 AM PST           63.55            185         +      Not Applicable
  12/25/2025 05 AM PST           63.56            186         +      Not Applicable
  12/25/2025 06 AM PST           63.58            188         +      Not Applicable
  12/25/2025 07 AM PST           63.58            188         0      Not Applicable
  12/25/2025 08 AM PST           63.58            188         0      Not Applicable
  12/25/2025 09 AM PST           63.58            188         0      Not Applicable
  12/25/2025 10 AM PST           63.58            188         0      Not Applicable
  12/25/2025 11 AM PST           63.60            189         +      Not Applicable
  12/25/2025 12 PM PST           63.61            190         +      Not Applicable
  12/25/2025 01 PM PST           63.62            191         +      Not Applicable
  12/25/2025 02 PM PST           63.64            193         +      Not Applicable
  12/25/2025 03 PM PST           63.65            194         +      Not Applicable
  12/25/2025 04 PM PST           63.67            196         +      Not Applicable
  12/25/2025 05 PM PST           63.69            197         +      Not Applicable
  12/25/2025 06 PM PST           63.70            198         +      Not Applicable
  12/25/2025 07 PM PST           63.71            199         +      Not Applicable
  12/25/2025 08 PM PST           63.72            200         +      Not Applicable
  12/25/2025 09 PM PST           63.75            203         +      Not Applicable
  12/25/2025 10 PM PST           63.76            204         +      Not Applicable
  12/25/2025 11 PM PST           63.76            204         0      Not Applicable
  12/26/2025 12 AM PST           63.76            204         0      Not Applicable
  12/26/2025 01 AM PST           63.79            206         +      Not Applicable
  12/26/2025 02 AM PST           63.79            206         0      Not Applicable
  12/26/2025 03 AM PST           63.79            206         0      Not Applicable
  12/26/2025 04 AM PST           63.80            207         +      Not Applicable
  12/26/2025 05 AM PST           63.81            208         +      Not Applicable
  12/26/2025 06 AM PST           63.82            209         +      Not Applicable
  12/26/2025 07 AM PST           63.84            211         +      Not Applicable
  12/26/2025 08 AM PST           63.85            212         +      Not Applicable
  12/26/2025 09 AM PST           63.87            214         +      Not Applicable
  12/26/2025 10 AM PST           63.88            215         +      Not Applicable
  12/26/2025 11 AM PST           63.88            215         0      Not Applicable
  12/26/2025 12 PM PST           63.92            218         +      Not Applicable
  12/26/2025 01 PM PST           63.92            218         0      Not Applicable
  12/26/2025 02 PM PST           63.94            220         +      Not Applicable
  12/26/2025 03 PM PST           63.96            222         +      Not Applicable
  12/26/2025 04 PM PST           63.96            222         0      Not Applicable
  12/26/2025 05 PM PST           63.97            223         +      Not Applicable
  12/26/2025 06 PM PST           63.97            223         0      Not Applicable
  12/26/2025 07 PM PST           63.98            224         +      Not Applicable
  12/26/2025 08 PM PST           63.98            224         0      Not Applicable
  12/26/2025 09 PM PST           63.99            225         +      Not Applicable
  12/26/2025 10 PM PST           63.98            224         -      Not Applicable
  12/26/2025 11 PM PST           63.98            224         0      Not Applicable
  12/27/2025 12 AM PST           63.99            225         +      Not Applicable
  12/27/2025 01 AM PST           63.98            224         -      Not Applicable
  12/27/2025 02 AM PST           63.97            223         -      Not Applicable
  12/27/2025 03 AM PST           63.97            223         0      Not Applicable
  12/27/2025 04 AM PST           63.98            224         +      Not Applicable
  12/27/2025 05 AM PST           63.99            225         +      Not Applicable
  12/27/2025 06 AM PST           64.01            227         +      Not Applicable
  12/27/2025 07 AM PST           64.01            227         0      Not Applicable
  12/27/2025 08 AM PST           64.01            227         0      Not Applicable
  12/27/2025 09 AM PST           64.01            227         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/27/2025 10 AM PST           64.02            228                Not Applicable
  12/27/2025 11 AM PST           64.02            228         0      Not Applicable
  12/27/2025 12 PM PST           64.02            228         0      Not Applicable
  12/27/2025 01 PM PST           64.03            229         +      Not Applicable
  12/27/2025 02 PM PST           64.03            229         0      Not Applicable
  12/27/2025 03 PM PST           64.04            230         +      Not Applicable
  12/27/2025 04 PM PST           64.04            230         0      Not Applicable
  12/27/2025 05 PM PST           64.04            230         0      Not Applicable
  12/27/2025 06 PM PST           64.05            231         +      Not Applicable
  12/27/2025 07 PM PST           64.06            231         +      Not Applicable
  12/27/2025 08 PM PST           64.06            231         0      Not Applicable
  12/27/2025 09 PM PST           64.07            232         +      Not Applicable
  12/27/2025 10 PM PST           64.07            232         0      Not Applicable
  12/27/2025 11 PM PST           64.07            232         0      Not Applicable
  12/28/2025 12 AM PST           64.07            232         0      Not Applicable
  12/28/2025 01 AM PST           64.07            232         0      Not Applicable
  12/28/2025 02 AM PST           64.08            233         +      Not Applicable
  12/28/2025 03 AM PST           64.08            233         0      Not Applicable
  12/28/2025 04 AM PST           64.08            233         0      Not Applicable
  12/28/2025 05 AM PST           64.08            233         0      Not Applicable
  12/28/2025 06 AM PST           64.08            233         0      Not Applicable
  12/28/2025 07 AM PST           64.09            234         +      Not Applicable
  12/28/2025 08 AM PST           64.09            234         0      Not Applicable
  12/28/2025 09 AM PST           64.09            234         0      Not Applicable
  12/28/2025 10 AM PST           64.09            234         0      Not Applicable
  12/28/2025 11 AM PST           64.09            234         0      Not Applicable
  12/28/2025 12 PM PST           64.09            234         0      Not Applicable
  12/28/2025 01 PM PST           64.09            234         0      Not Applicable
  12/28/2025 02 PM PST           64.09            234         0      Not Applicable
  12/28/2025 03 PM PST           64.09            234         0      Not Applicable
  12/28/2025 04 PM PST           64.09            234         0      Not Applicable
  12/28/2025 05 PM PST           64.09            234         0      Not Applicable
  12/28/2025 06 PM PST           64.09            234         0      Not Applicable
  12/28/2025 07 PM PST           64.08            233         -      Not Applicable
  12/28/2025 08 PM PST           64.08            233         0      Not Applicable
  12/28/2025 09 PM PST           64.08            233         0      Not Applicable
  12/28/2025 10 PM PST           64.08            233         0      Not Applicable
  12/28/2025 11 PM PST           64.08            233         0      Not Applicable
  12/29/2025 12 AM PST           64.08            233         0      Not Applicable
  12/29/2025 01 AM PST           64.08            233         0      Not Applicable
  12/29/2025 02 AM PST           64.07            232         -      Not Applicable
  12/29/2025 03 AM PST           64.07            232         0      Not Applicable
  12/29/2025 04 AM PST           64.07            232         0      Not Applicable
  12/29/2025 05 AM PST           64.07            232         0      Not Applicable
  12/29/2025 06 AM PST           64.07            232         0      Not Applicable
  12/29/2025 07 AM PST           64.06            231         -      Not Applicable
  12/29/2025 08 AM PST           64.06            231         0      Not Applicable
  12/29/2025 09 AM PST           64.06            231         0      Not Applicable
  12/29/2025 10 AM PST           64.05            231         -      Not Applicable
  12/29/2025 11 AM PST           64.05            231         0      Not Applicable
  12/29/2025 12 PM PST           64.05            231         0      Not Applicable
  12/29/2025 01 PM PST           64.04            230         -      Not Applicable
  12/29/2025 02 PM PST           64.04            230         0      Not Applicable
  12/29/2025 03 PM PST           64.04            230         0      Not Applicable
  12/29/2025 04 PM PST           64.04            230         0      Not Applicable
  12/29/2025 05 PM PST           64.03            229         -      Not Applicable
  12/29/2025 06 PM PST           64.03            229         0      Not Applicable
  12/29/2025 07 PM PST           64.03            229         0      Not Applicable
  12/29/2025 08 PM PST           64.03            229         0      Not Applicable
  12/29/2025 09 PM PST           64.03            229         0      Not Applicable
  12/29/2025 10 PM PST           64.02            228         -      Not Applicable
  12/29/2025 11 PM PST           64.02            228         0      Not Applicable
  12/30/2025 12 AM PST           64.02            228         0      Not Applicable
  12/30/2025 01 AM PST           64.02            228         0      Not Applicable
  12/30/2025 02 AM PST           64.02            228         0      Not Applicable
  12/30/2025 03 AM PST           64.01            227         -      Not Applicable
  12/30/2025 04 AM PST           64.01            227         0      Not Applicable
  12/30/2025 05 AM PST           64.01            227         0      Not Applicable
  12/30/2025 06 AM PST           64.01            227         0      Not Applicable
  12/30/2025 07 AM PST           64.00            226         -      Not Applicable
  12/30/2025 08 AM PST           64.00            226         0      Not Applicable
  12/30/2025 09 AM PST           64.00            226         0      Not Applicable
  12/30/2025 10 AM PST           64.00            226         0      Not Applicable
  12/30/2025 11 AM PST           64.00            226         0      Not Applicable
  12/30/2025 12 PM PST           63.99            225         -      Not Applicable
  12/30/2025 01 PM PST           63.99            225         0      Not Applicable
  12/30/2025 02 PM PST           63.99            225         0      Not Applicable
  12/30/2025 03 PM PST           63.99            225         0      Not Applicable
  12/30/2025 04 PM PST           63.99            225         0      Not Applicable
  12/30/2025 05 PM PST           63.99            225         0      Not Applicable
  12/30/2025 06 PM PST           63.98            224         -      Not Applicable
  12/30/2025 07 PM PST           63.98            224         0      Not Applicable
  12/30/2025 08 PM PST           63.98            224         0      Not Applicable
  12/30/2025 09 PM PST           63.98            224         0      Not Applicable
  12/30/2025 10 PM PST           63.98            224         0      Not Applicable
  12/30/2025 11 PM PST           63.98            224         0      Not Applicable
  12/31/2025 12 AM PST           63.98            224         0      Not Applicable
  12/31/2025 01 AM PST           63.97            223         -      Not Applicable
  12/31/2025 02 AM PST           63.97            223         0      Not Applicable
  12/31/2025 03 AM PST           63.97            223         0      Not Applicable
  12/31/2025 04 AM PST           63.97            223         0      Not Applicable
  12/31/2025 05 AM PST           63.97            223         0      Not Applicable
  12/31/2025 06 AM PST           63.97            223         0      Not Applicable
  12/31/2025 07 AM PST           63.97            223         0      Not Applicable
  12/31/2025 08 AM PST           63.97            223         0      Not Applicable
  12/31/2025 09 AM PST           63.96            222         -      Not Applicable
  12/31/2025 10 AM PST           63.96            222         0      Not Applicable
  12/31/2025 11 AM PST           63.96            222         0      Not Applicable
  12/31/2025 12 PM PST           63.96            222         0      Not Applicable
  12/31/2025 01 PM PST           63.96            222         0      Not Applicable
  12/31/2025 02 PM PST           63.96            222         0      Not Applicable
  12/31/2025 03 PM PST           63.96            222         0      Not Applicable
  12/31/2025 04 PM PST           63.96            222         0      Not Applicable
  12/31/2025 05 PM PST           63.95            221         -      Not Applicable
  12/31/2025 06 PM PST           63.95            221         0      Not Applicable
  12/31/2025 07 PM PST           63.95            221         0      Not Applicable
  12/31/2025 08 PM PST           63.95            221         0      Not Applicable
  12/31/2025 09 PM PST           63.95            221         0      Not Applicable
  12/31/2025 10 PM PST           63.95            221         0      Not Applicable
  12/31/2025 11 PM PST           63.95            221         0      Not Applicable
  01/01/2026 12 AM PST           63.95            221         0      Not Applicable
  01/01/2026 01 AM PST           63.95            221         0      Not Applicable
  01/01/2026 02 AM PST           63.95            221         0      Not Applicable
  01/01/2026 03 AM PST           63.95            221         0      Not Applicable
  01/01/2026 04 AM PST           63.95            221         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.