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

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SAN JOAQUIN RIVER - MENDOTA (SJMC1)
Latitude: 36.78º NLongitude: 120.37º WElevation: 170 Feet
Location: Fresno County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Jan 09 2026 at 1:17 PM PSTNext Issuance: Jan 10 2026 at 9:00 AM PST
Action/Monitor: 10.0 FeetMinor Flood: 14.0 FeetModerate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Joaquin River - Mendota (SJMC1)
#
# File Generation Time:  01/09/2026 at 01:20 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/08/2026 at 11:00 AM PST
# Maximum Observed Stage:                       3.43 Feet
# Maximum Observed Flow:                        276 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/09/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       3.26 Feet
# Maximum Forecast Flow:                        251 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/04/2026 01 PM PST            3.29            255                        Normal
  01/04/2026 02 PM PST            3.33            261         +              Normal
  01/04/2026 03 PM PST            3.35            264         +              Normal
  01/04/2026 04 PM PST            3.36            266         +              Normal
  01/04/2026 05 PM PST            3.36            266         0              Normal
  01/04/2026 06 PM PST            3.36            266         0              Normal
  01/04/2026 07 PM PST            3.34            263         -              Normal
  01/04/2026 08 PM PST            3.33            261         -              Normal
  01/04/2026 09 PM PST            3.32            260         -              Normal
  01/04/2026 10 PM PST            3.32            260         0              Normal
  01/04/2026 11 PM PST            3.32            260         0              Normal
  01/05/2026 12 AM PST            3.31            258         -              Normal
  01/05/2026 01 AM PST            3.31            258         0              Normal
  01/05/2026 02 AM PST            3.31            258         0              Normal
  01/05/2026 03 AM PST            3.31            258         0              Normal
  01/05/2026 04 AM PST            3.31            258         0              Normal
  01/05/2026 05 AM PST            3.31            258         0              Normal
  01/05/2026 06 AM PST            3.31            258         0              Normal
  01/05/2026 07 AM PST            3.31            258         0              Normal
  01/05/2026 08 AM PST            3.31            258         0              Normal
  01/05/2026 09 AM PST            3.31            258         0              Normal
  01/05/2026 10 AM PST            3.32            260         +              Normal
  01/05/2026 11 AM PST            3.31            258         -              Normal
  01/05/2026 12 PM PST            3.31            258         0              Normal
  01/05/2026 01 PM PST            3.31            258         0              Normal
  01/05/2026 02 PM PST            3.31            258         0              Normal
  01/05/2026 03 PM PST            3.31            258         0              Normal
  01/05/2026 04 PM PST            3.31            258         0              Normal
  01/05/2026 05 PM PST            3.31            258         0              Normal
  01/05/2026 06 PM PST            3.31            258         0              Normal
  01/05/2026 07 PM PST            3.31            258         0              Normal
  01/05/2026 08 PM PST            3.31            258         0              Normal
  01/05/2026 09 PM PST            3.31            258         0              Normal
  01/05/2026 10 PM PST            3.31            258         0              Normal
  01/05/2026 11 PM PST            3.31            258         0              Normal
  01/06/2026 12 AM PST            3.31            258         0              Normal
  01/06/2026 01 AM PST            3.32            260         +              Normal
  01/06/2026 02 AM PST            3.31            258         -              Normal
  01/06/2026 03 AM PST            3.32            260         +              Normal
  01/06/2026 04 AM PST            3.32            260         0              Normal
  01/06/2026 05 AM PST            3.32            260         0              Normal
  01/06/2026 06 AM PST            3.32            260         0              Normal
  01/06/2026 07 AM PST            3.32            260         0              Normal
  01/06/2026 08 AM PST            3.32            260         0              Normal
  01/06/2026 09 AM PST            3.32            260         0              Normal
  01/06/2026 10 AM PST            3.32            260         0              Normal
  01/06/2026 11 AM PST            3.32            260         0              Normal
  01/06/2026 12 PM PST            3.32            260         0              Normal
  01/06/2026 01 PM PST            3.32            260         0              Normal
  01/06/2026 02 PM PST            3.32            260         0              Normal
  01/06/2026 03 PM PST            3.32            260         0              Normal
  01/06/2026 04 PM PST            3.32            260         0              Normal
  01/06/2026 05 PM PST            3.32            260         0              Normal
  01/06/2026 06 PM PST            3.31            258         -              Normal
  01/06/2026 07 PM PST            3.31            258         0              Normal
  01/06/2026 08 PM PST            3.31            258         0              Normal
  01/06/2026 09 PM PST            3.32            260         +              Normal
  01/06/2026 10 PM PST            3.32            260         0              Normal
  01/06/2026 11 PM PST            3.31            258         -              Normal
  01/07/2026 12 AM PST            3.31            258         0              Normal
  01/07/2026 01 AM PST            3.31            258         0              Normal
  01/07/2026 02 AM PST            3.31            258         0              Normal
  01/07/2026 03 AM PST            3.31            258         0              Normal
  01/07/2026 04 AM PST            3.31            258         0              Normal
  01/07/2026 05 AM PST            3.31            258         0              Normal
  01/07/2026 06 AM PST            3.31            258         0              Normal
  01/07/2026 07 AM PST            3.31            258         0              Normal
  01/07/2026 08 AM PST            3.32            260         +              Normal
  01/07/2026 09 AM PST            3.32            260         0              Normal
  01/07/2026 10 AM PST            3.32            260         0              Normal
  01/07/2026 11 AM PST            3.32            260         0              Normal
  01/07/2026 12 PM PST            3.36            266         +              Normal
  01/07/2026 01 PM PST            3.38            269         +              Normal
  01/07/2026 02 PM PST            3.40            272         +              Normal
  01/07/2026 03 PM PST            3.41            273         +              Normal
  01/07/2026 04 PM PST            3.42            275         +              Normal
  01/07/2026 05 PM PST            3.42            275         0              Normal
  01/07/2026 06 PM PST            3.41            273         -              Normal
  01/07/2026 07 PM PST            3.41            273         0              Normal
  01/07/2026 08 PM PST            3.40            272         -              Normal
  01/07/2026 09 PM PST            3.41            273         +              Normal
  01/07/2026 10 PM PST            3.40            272         -              Normal
  01/07/2026 11 PM PST            3.40            272         0              Normal
  01/08/2026 12 AM PST            3.41            273         +              Normal
  01/08/2026 01 AM PST            3.40            272         -              Normal
  01/08/2026 02 AM PST            3.41            273         +              Normal
  01/08/2026 03 AM PST            3.41            273         0              Normal
  01/08/2026 04 AM PST            3.40            272         -              Normal
  01/08/2026 05 AM PST            3.40            272         0              Normal
  01/08/2026 06 AM PST            3.41            273         +              Normal
  01/08/2026 07 AM PST            3.41            273         0              Normal
  01/08/2026 08 AM PST            3.41            273         0              Normal
  01/08/2026 09 AM PST            3.42            275         +              Normal
  01/08/2026 10 AM PST            3.42            275         0              Normal
  01/08/2026 11 AM PST            3.43            276         +              Normal
  01/08/2026 12 PM PST            3.39            270         -              Normal
  01/08/2026 01 PM PST            3.36            266         -              Normal
  01/08/2026 02 PM PST            3.34            263         -              Normal
  01/08/2026 03 PM PST            3.31            258         -              Normal
  01/08/2026 04 PM PST            3.31            258         0              Normal
  01/08/2026 05 PM PST            3.31            258         0              Normal
  01/08/2026 06 PM PST            3.30            257         -              Normal
  01/08/2026 07 PM PST            3.30            257         0              Normal
  01/08/2026 08 PM PST            3.29            255         -              Normal
  01/08/2026 09 PM PST            3.29            255         0              Normal
  01/08/2026 10 PM PST            3.29            255         0              Normal
  01/08/2026 11 PM PST            3.29            255         0              Normal
  01/09/2026 12 AM PST            3.29            255         0              Normal
  01/09/2026 01 AM PST            3.30            257         +              Normal
  01/09/2026 02 AM PST            3.29            255         -              Normal
  01/09/2026 03 AM PST            3.29            255         0              Normal
  01/09/2026 04 AM PST            3.29            255         0              Normal
  01/09/2026 05 AM PST            3.29            255         0              Normal
  01/09/2026 06 AM PST            3.29            255         0              Normal
  01/09/2026 07 AM PST            3.29            255         0              Normal
  01/09/2026 08 AM PST            3.29            255         0              Normal
  01/09/2026 09 AM PST            3.30            257         +              Normal
  01/09/2026 10 AM PST            3.30            257         0              Normal
  01/09/2026 11 AM PST            3.30            257         0              Normal
  01/09/2026 12 PM PST            3.26            251         -              Normal
  01/09/2026 01 PM PST            3.26            251         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/09/2026 02 PM PST            3.26            251                        Normal
  01/09/2026 03 PM PST            3.26            251         0              Normal
  01/09/2026 04 PM PST            3.26            251         0              Normal
  01/09/2026 05 PM PST            3.26            251         0              Normal
  01/09/2026 06 PM PST            3.26            251         0              Normal
  01/09/2026 07 PM PST            3.26            251         0              Normal
  01/09/2026 08 PM PST            3.26            251         0              Normal
  01/09/2026 09 PM PST            3.26            251         0              Normal
  01/09/2026 10 PM PST            3.26            251         0              Normal
  01/09/2026 11 PM PST            3.26            251         0              Normal
  01/10/2026 12 AM PST            3.26            251         0              Normal
  01/10/2026 01 AM PST            3.26            251         0              Normal
  01/10/2026 02 AM PST            3.26            251         0              Normal
  01/10/2026 03 AM PST            3.26            251         0              Normal
  01/10/2026 04 AM PST            3.26            251         0              Normal
  01/10/2026 05 AM PST            3.26            251         0              Normal
  01/10/2026 06 AM PST            3.26            251         0              Normal
  01/10/2026 07 AM PST            3.26            251         0              Normal
  01/10/2026 08 AM PST            3.26            251         0              Normal
  01/10/2026 09 AM PST            3.26            251         0              Normal
  01/10/2026 10 AM PST            3.26            251         0              Normal
  01/10/2026 11 AM PST            3.26            251         0              Normal
  01/10/2026 12 PM PST            3.26            251         0              Normal
  01/10/2026 01 PM PST            3.26            251         0              Normal
  01/10/2026 02 PM PST            3.26            251         0              Normal
  01/10/2026 03 PM PST            3.26            251         0              Normal
  01/10/2026 04 PM PST            3.26            251         0              Normal
  01/10/2026 05 PM PST            3.26            251         0              Normal
  01/10/2026 06 PM PST            3.26            251         0              Normal
  01/10/2026 07 PM PST            3.26            251         0              Normal
  01/10/2026 08 PM PST            3.26            251         0              Normal
  01/10/2026 09 PM PST            3.26            251         0              Normal
  01/10/2026 10 PM PST            3.26            251         0              Normal
  01/10/2026 11 PM PST            3.26            251         0              Normal
  01/11/2026 12 AM PST            3.26            251         0              Normal
  01/11/2026 01 AM PST            3.26            251         0              Normal
  01/11/2026 02 AM PST            3.26            251         0              Normal
  01/11/2026 03 AM PST            3.26            251         0              Normal
  01/11/2026 04 AM PST            3.26            251         0              Normal
  01/11/2026 05 AM PST            3.26            251         0              Normal
  01/11/2026 06 AM PST            3.26            251         0              Normal
  01/11/2026 07 AM PST            3.26            251         0              Normal
  01/11/2026 08 AM PST            3.26            251         0              Normal
  01/11/2026 09 AM PST            3.26            251         0              Normal
  01/11/2026 10 AM PST            3.26            251         0              Normal
  01/11/2026 11 AM PST            3.26            251         0              Normal
  01/11/2026 12 PM PST            3.26            251         0              Normal
  01/11/2026 01 PM PST            3.26            251         0              Normal
  01/11/2026 02 PM PST            3.26            251         0              Normal
  01/11/2026 03 PM PST            3.26            251         0              Normal
  01/11/2026 04 PM PST            3.26            251         0              Normal
  01/11/2026 05 PM PST            3.26            251         0              Normal
  01/11/2026 06 PM PST            3.26            251         0              Normal
  01/11/2026 07 PM PST            3.26            251         0              Normal
  01/11/2026 08 PM PST            3.26            251         0              Normal
  01/11/2026 09 PM PST            3.26            251         0              Normal
  01/11/2026 10 PM PST            3.26            251         0              Normal
  01/11/2026 11 PM PST            3.26            251         0              Normal
  01/12/2026 12 AM PST            3.26            251         0              Normal
  01/12/2026 01 AM PST            3.26            251         0              Normal
  01/12/2026 02 AM PST            3.26            251         0              Normal
  01/12/2026 03 AM PST            3.26            251         0              Normal
  01/12/2026 04 AM PST            3.26            251         0              Normal
  01/12/2026 05 AM PST            3.26            251         0              Normal
  01/12/2026 06 AM PST            3.26            251         0              Normal
  01/12/2026 07 AM PST            3.26            251         0              Normal
  01/12/2026 08 AM PST            3.26            251         0              Normal
  01/12/2026 09 AM PST            3.26            251         0              Normal
  01/12/2026 10 AM PST            3.26            251         0              Normal
  01/12/2026 11 AM PST            3.26            251         0              Normal
  01/12/2026 12 PM PST            3.26            251         0              Normal
  01/12/2026 01 PM PST            3.26            251         0              Normal
  01/12/2026 02 PM PST            3.26            251         0              Normal
  01/12/2026 03 PM PST            3.26            251         0              Normal
  01/12/2026 04 PM PST            3.26            251         0              Normal
  01/12/2026 05 PM PST            3.26            251         0              Normal
  01/12/2026 06 PM PST            3.26            251         0              Normal
  01/12/2026 07 PM PST            3.26            251         0              Normal
  01/12/2026 08 PM PST            3.26            251         0              Normal
  01/12/2026 09 PM PST            3.26            251         0              Normal
  01/12/2026 10 PM PST            3.26            251         0              Normal
  01/12/2026 11 PM PST            3.26            251         0              Normal
  01/13/2026 12 AM PST            3.26            251         0              Normal
  01/13/2026 01 AM PST            3.26            251         0              Normal
  01/13/2026 02 AM PST            3.26            251         0              Normal
  01/13/2026 03 AM PST            3.26            251         0              Normal
  01/13/2026 04 AM PST            3.26            251         0              Normal
  01/13/2026 05 AM PST            3.26            251         0              Normal
  01/13/2026 06 AM PST            3.26            251         0              Normal
  01/13/2026 07 AM PST            3.26            251         0              Normal
  01/13/2026 08 AM PST            3.26            251         0              Normal
  01/13/2026 09 AM PST            3.26            251         0              Normal
  01/13/2026 10 AM PST            3.26            251         0              Normal
  01/13/2026 11 AM PST            3.26            251         0              Normal
  01/13/2026 12 PM PST            3.26            251         0              Normal
  01/13/2026 01 PM PST            3.26            251         0              Normal
  01/13/2026 02 PM PST            3.26            251         0              Normal
  01/13/2026 03 PM PST            3.26            251         0              Normal
  01/13/2026 04 PM PST            3.26            251         0              Normal
  01/13/2026 05 PM PST            3.26            251         0              Normal
  01/13/2026 06 PM PST            3.26            251         0              Normal
  01/13/2026 07 PM PST            3.26            251         0              Normal
  01/13/2026 08 PM PST            3.26            251         0              Normal
  01/13/2026 09 PM PST            3.25            249         -              Normal
  01/13/2026 10 PM PST            3.25            249         0              Normal
  01/13/2026 11 PM PST            3.25            249         0              Normal
  01/14/2026 12 AM PST            3.25            249         0              Normal
  01/14/2026 01 AM PST            3.25            249         0              Normal
  01/14/2026 02 AM PST            3.25            249         0              Normal
  01/14/2026 03 AM PST            3.25            249         0              Normal
  01/14/2026 04 AM PST            3.25            249         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.