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

 | 

GUADALUPE RIVER - SAN JOSE AT US HIGHWAY 101 (GSJC1)
Latitude: 37.37º NLongitude: 121.93º WElevation: 72 FeetForecast Type: Unofficial Location
Location: Santa Clara County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Mar 06 2026 at 12:57 PM PSTNext Issuance: Mar 07 2026 at 9:00 AM PST
Action/Monitor: 17.0 FeetMinor Flood: 18.5 FeetModerate Flood: 19.5 FeetMajor Flood: 21.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Guadalupe River - San Jose at US Highway 101 (GSJC1)
#
# File Generation Time:  03/06/2026 at 12:59 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/03/2026 at 01:00 AM PST
# Maximum Observed Stage:                       5.86 Feet
# Maximum Observed Flow:                        103 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/06/2026 at 01:00 PM PST
# Maximum Forecast Stage:                       5.65 Feet
# Maximum Forecast Flow:                        77 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/01/2026 12 PM PST            5.60             71                        Normal
  03/01/2026 01 PM PST            5.61             72         +              Normal
  03/01/2026 02 PM PST            5.60             71         -              Normal
  03/01/2026 03 PM PST            5.60             71         0              Normal
  03/01/2026 04 PM PST            5.60             71         0              Normal
  03/01/2026 05 PM PST            5.60             71         0              Normal
  03/01/2026 06 PM PST            5.60             71         0              Normal
  03/01/2026 07 PM PST            5.62             73         +              Normal
  03/01/2026 08 PM PST            5.64             76         +              Normal
  03/01/2026 09 PM PST            5.67             79         +              Normal
  03/01/2026 10 PM PST            5.70             83         +              Normal
  03/01/2026 11 PM PST            5.72             85         +              Normal
  03/02/2026 12 AM PST            5.75             89         +              Normal
  03/02/2026 01 AM PST            5.77             91         +              Normal
  03/02/2026 02 AM PST            5.77             91         0              Normal
  03/02/2026 03 AM PST            5.78             93         +              Normal
  03/02/2026 04 AM PST            5.79             94         +              Normal
  03/02/2026 05 AM PST            5.80             95         +              Normal
  03/02/2026 06 AM PST            5.80             95         0              Normal
  03/02/2026 07 AM PST            5.81             96         +              Normal
  03/02/2026 08 AM PST            5.80             95         -              Normal
  03/02/2026 09 AM PST            5.81             96         +              Normal
  03/02/2026 10 AM PST            5.81             96         0              Normal
  03/02/2026 11 AM PST            5.82             98         +              Normal
  03/02/2026 12 PM PST            5.82             98         0              Normal
  03/02/2026 01 PM PST            5.81             96         -              Normal
  03/02/2026 02 PM PST            5.81             96         0              Normal
  03/02/2026 03 PM PST            5.82             98         +              Normal
  03/02/2026 04 PM PST            5.83             99         +              Normal
  03/02/2026 05 PM PST            5.83             99         0              Normal
  03/02/2026 06 PM PST            5.83             99         0              Normal
  03/02/2026 07 PM PST            5.83             99         0              Normal
  03/02/2026 08 PM PST            5.83             99         0              Normal
  03/02/2026 09 PM PST            5.84            100         +              Normal
  03/02/2026 10 PM PST            5.84            100         0              Normal
  03/02/2026 11 PM PST            5.84            100         0              Normal
  03/03/2026 12 AM PST            5.85            102         +              Normal
  03/03/2026 01 AM PST            5.86            103         +              Normal
  03/03/2026 02 AM PST            5.85            102         -              Normal
  03/03/2026 03 AM PST            5.85            102         0              Normal
  03/03/2026 04 AM PST            5.84            100         -              Normal
  03/03/2026 05 AM PST            5.84            100         0              Normal
  03/03/2026 06 AM PST            5.85            102         +              Normal
  03/03/2026 07 AM PST            5.84            100         -              Normal
  03/03/2026 08 AM PST            5.84            100         0              Normal
  03/03/2026 09 AM PST            5.84            100         0              Normal
  03/03/2026 10 AM PST            5.85            102         +              Normal
  03/03/2026 11 AM PST            5.85            102         0              Normal
  03/03/2026 12 PM PST            5.85            102         0              Normal
  03/03/2026 01 PM PST            5.84            100         -              Normal
  03/03/2026 02 PM PST            5.84            100         0              Normal
  03/03/2026 03 PM PST            5.84            100         0              Normal
  03/03/2026 04 PM PST            5.84            100         0              Normal
  03/03/2026 05 PM PST            5.84            100         0              Normal
  03/03/2026 06 PM PST            5.84            100         0              Normal
  03/03/2026 07 PM PST            5.83             99         -              Normal
  03/03/2026 08 PM PST            5.83             99         0              Normal
  03/03/2026 09 PM PST            5.84            100         +              Normal
  03/03/2026 10 PM PST            5.84            100         0              Normal
  03/03/2026 11 PM PST            5.83             99         -              Normal
  03/04/2026 12 AM PST            5.83             99         0              Normal
  03/04/2026 01 AM PST            5.84            100         +              Normal
  03/04/2026 02 AM PST            5.84            100         0              Normal
  03/04/2026 03 AM PST            5.84            100         0              Normal
  03/04/2026 04 AM PST            5.84            100         0              Normal
  03/04/2026 05 AM PST            5.84            100         0              Normal
  03/04/2026 06 AM PST            5.84            100         0              Normal
  03/04/2026 07 AM PST            5.84            100         0              Normal
  03/04/2026 08 AM PST            5.83             99         -              Normal
  03/04/2026 09 AM PST            5.83             99         0              Normal
  03/04/2026 10 AM PST            5.84            100         +              Normal
  03/04/2026 11 AM PST            5.85            102         +              Normal
  03/04/2026 12 PM PST            5.85            102         0              Normal
  03/04/2026 01 PM PST            5.83             99         -              Normal
  03/04/2026 02 PM PST            5.83             99         0              Normal
  03/04/2026 03 PM PST            5.83             99         0              Normal
  03/04/2026 04 PM PST            5.83             99         0              Normal
  03/04/2026 05 PM PST            5.83             99         0              Normal
  03/04/2026 06 PM PST            5.83             99         0              Normal
  03/04/2026 07 PM PST            5.83             99         0              Normal
  03/04/2026 08 PM PST            5.83             99         0              Normal
  03/04/2026 09 PM PST            5.83             99         0              Normal
  03/04/2026 10 PM PST            5.83             99         0              Normal
  03/04/2026 11 PM PST            5.82             98         -              Normal
  03/05/2026 12 AM PST            5.82             98         0              Normal
  03/05/2026 01 AM PST            5.82             98         0              Normal
  03/05/2026 02 AM PST            5.83             99         +              Normal
  03/05/2026 03 AM PST            5.82             98         -              Normal
  03/05/2026 04 AM PST            5.83             99         +              Normal
  03/05/2026 05 AM PST            5.83             99         0              Normal
  03/05/2026 06 AM PST            5.84            100         +              Normal
  03/05/2026 07 AM PST            5.83             99         -              Normal
  03/05/2026 08 AM PST            5.83             99         0              Normal
  03/05/2026 09 AM PST            5.83             99         0              Normal
  03/05/2026 10 AM PST            5.84            100         +              Normal
  03/05/2026 11 AM PST            5.83             99         -              Normal
  03/05/2026 12 PM PST            5.83             99         0              Normal
  03/05/2026 01 PM PST            5.83             99         0              Normal
  03/05/2026 02 PM PST            5.83             99         0              Normal
  03/05/2026 03 PM PST            5.83             99         0              Normal
  03/05/2026 04 PM PST            5.83             99         0              Normal
  03/05/2026 05 PM PST            5.82             98         -              Normal
  03/05/2026 06 PM PST            5.81             96         -              Normal
  03/05/2026 07 PM PST            5.79             94         -              Normal
  03/05/2026 08 PM PST            5.78             93         -              Normal
  03/05/2026 09 PM PST            5.77             91         -              Normal
  03/05/2026 10 PM PST            5.76             90         -              Normal
  03/05/2026 11 PM PST            5.75             89         -              Normal
  03/06/2026 12 AM PST            5.74             88         -              Normal
  03/06/2026 01 AM PST            5.74             88         0              Normal
  03/06/2026 02 AM PST            5.73             86         -              Normal
  03/06/2026 03 AM PST            5.73             86         0              Normal
  03/06/2026 04 AM PST            5.72             85         -              Normal
  03/06/2026 05 AM PST            5.72             85         0              Normal
  03/06/2026 06 AM PST            5.72             85         0              Normal
  03/06/2026 07 AM PST            5.70             83         -              Normal
  03/06/2026 08 AM PST            5.70             83         0              Normal
  03/06/2026 09 AM PST            5.69             81         -              Normal
  03/06/2026 10 AM PST            5.68             80         -              Normal
  03/06/2026 11 AM PST            5.67             79         -              Normal
  03/06/2026 12 PM PST            5.66             78         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/06/2026 01 PM PST            5.65             77                        Normal
  03/06/2026 02 PM PST            5.64             76         -              Normal
  03/06/2026 03 PM PST            5.63             74         -              Normal
  03/06/2026 04 PM PST            5.63             74         0              Normal
  03/06/2026 05 PM PST            5.63             74         0              Normal
  03/06/2026 06 PM PST            5.63             74         0              Normal
  03/06/2026 07 PM PST            5.63             74         0              Normal
  03/06/2026 08 PM PST            5.62             73         -              Normal
  03/06/2026 09 PM PST            5.60             71         -              Normal
  03/06/2026 10 PM PST            5.59             70         -              Normal
  03/06/2026 11 PM PST            5.58             69         -              Normal
  03/07/2026 12 AM PST            5.58             69         0              Normal
  03/07/2026 01 AM PST            5.58             69         0              Normal
  03/07/2026 02 AM PST            5.57             68         -              Normal
  03/07/2026 03 AM PST            5.57             68         0              Normal
  03/07/2026 04 AM PST            5.57             68         0              Normal
  03/07/2026 05 AM PST            5.57             68         0              Normal
  03/07/2026 06 AM PST            5.57             68         0              Normal
  03/07/2026 07 AM PST            5.57             68         0              Normal
  03/07/2026 08 AM PST            5.57             68         0              Normal
  03/07/2026 09 AM PST            5.57             68         0              Normal
  03/07/2026 10 AM PST            5.57             68         0              Normal
  03/07/2026 11 AM PST            5.57             68         0              Normal
  03/07/2026 12 PM PST            5.57             68         0              Normal
  03/07/2026 01 PM PST            5.56             67         -              Normal
  03/07/2026 02 PM PST            5.56             67         0              Normal
  03/07/2026 03 PM PST            5.56             67         0              Normal
  03/07/2026 04 PM PST            5.56             67         0              Normal
  03/07/2026 05 PM PST            5.56             67         0              Normal
  03/07/2026 06 PM PST            5.56             67         0              Normal
  03/07/2026 07 PM PST            5.56             67         0              Normal
  03/07/2026 08 PM PST            5.56             67         0              Normal
  03/07/2026 09 PM PST            5.56             67         0              Normal
  03/07/2026 10 PM PST            5.56             67         0              Normal
  03/07/2026 11 PM PST            5.56             67         0              Normal
  03/08/2026 12 AM PST            5.56             67         0              Normal
  03/08/2026 01 AM PST            5.56             67         0              Normal
  03/08/2026 03 AM PDT            5.56             67         0              Normal
  03/08/2026 04 AM PDT            5.55             65         -              Normal
  03/08/2026 05 AM PDT            5.55             65         0              Normal
  03/08/2026 06 AM PDT            5.55             65         0              Normal
  03/08/2026 07 AM PDT            5.55             65         0              Normal
  03/08/2026 08 AM PDT            5.55             65         0              Normal
  03/08/2026 09 AM PDT            5.55             65         0              Normal
  03/08/2026 10 AM PDT            5.55             65         0              Normal
  03/08/2026 11 AM PDT            5.55             65         0              Normal
  03/08/2026 12 PM PDT            5.55             65         0              Normal
  03/08/2026 01 PM PDT            5.55             65         0              Normal
  03/08/2026 02 PM PDT            5.55             65         0              Normal
  03/08/2026 03 PM PDT            5.55             65         0              Normal
  03/08/2026 04 PM PDT            5.55             65         0              Normal
  03/08/2026 05 PM PDT            5.55             65         0              Normal
  03/08/2026 06 PM PDT            5.55             65         0              Normal
  03/08/2026 07 PM PDT            5.55             65         0              Normal
  03/08/2026 08 PM PDT            5.55             65         0              Normal
  03/08/2026 09 PM PDT            5.54             64         -              Normal
  03/08/2026 10 PM PDT            5.54             64         0              Normal
  03/08/2026 11 PM PDT            5.54             64         0              Normal
  03/09/2026 12 AM PDT            5.54             64         0              Normal
  03/09/2026 01 AM PDT            5.54             64         0              Normal
  03/09/2026 02 AM PDT            5.54             64         0              Normal
  03/09/2026 03 AM PDT            5.54             64         0              Normal
  03/09/2026 04 AM PDT            5.54             64         0              Normal
  03/09/2026 05 AM PDT            5.54             64         0              Normal
  03/09/2026 06 AM PDT            5.54             64         0              Normal
  03/09/2026 07 AM PDT            5.54             64         0              Normal
  03/09/2026 08 AM PDT            5.54             64         0              Normal
  03/09/2026 09 AM PDT            5.54             64         0              Normal
  03/09/2026 10 AM PDT            5.54             64         0              Normal
  03/09/2026 11 AM PDT            5.54             64         0              Normal
  03/09/2026 12 PM PDT            5.54             64         0              Normal
  03/09/2026 01 PM PDT            5.54             64         0              Normal
  03/09/2026 02 PM PDT            5.54             64         0              Normal
  03/09/2026 03 PM PDT            5.54             64         0              Normal
  03/09/2026 04 PM PDT            5.53             63         -              Normal
  03/09/2026 05 PM PDT            5.53             63         0              Normal
  03/09/2026 06 PM PDT            5.53             63         0              Normal
  03/09/2026 07 PM PDT            5.53             63         0              Normal
  03/09/2026 08 PM PDT            5.53             63         0              Normal
  03/09/2026 09 PM PDT            5.53             63         0              Normal
  03/09/2026 10 PM PDT            5.53             63         0              Normal
  03/09/2026 11 PM PDT            5.53             63         0              Normal
  03/10/2026 12 AM PDT            5.53             63         0              Normal
  03/10/2026 01 AM PDT            5.53             63         0              Normal
  03/10/2026 02 AM PDT            5.53             63         0              Normal
  03/10/2026 03 AM PDT            5.53             63         0              Normal
  03/10/2026 04 AM PDT            5.53             63         0              Normal
  03/10/2026 05 AM PDT            5.53             63         0              Normal
  03/10/2026 06 AM PDT            5.53             63         0              Normal
  03/10/2026 07 AM PDT            5.53             63         0              Normal
  03/10/2026 08 AM PDT            5.53             63         0              Normal
  03/10/2026 09 AM PDT            5.53             63         0              Normal
  03/10/2026 10 AM PDT            5.52             62         -              Normal
  03/10/2026 11 AM PDT            5.52             62         0              Normal
  03/10/2026 12 PM PDT            5.52             62         0              Normal
  03/10/2026 01 PM PDT            5.52             62         0              Normal
  03/10/2026 02 PM PDT            5.52             62         0              Normal
  03/10/2026 03 PM PDT            5.52             62         0              Normal
  03/10/2026 04 PM PDT            5.52             62         0              Normal
  03/10/2026 05 PM PDT            5.52             62         0              Normal
  03/10/2026 06 PM PDT            5.52             62         0              Normal
  03/10/2026 07 PM PDT            5.52             62         0              Normal
  03/10/2026 08 PM PDT            5.52             62         0              Normal
  03/10/2026 09 PM PDT            5.52             62         0              Normal
  03/10/2026 10 PM PDT            5.52             62         0              Normal
  03/10/2026 11 PM PDT            5.52             62         0              Normal
  03/11/2026 12 AM PDT            5.52             62         0              Normal
  03/11/2026 01 AM PDT            5.52             62         0              Normal
  03/11/2026 02 AM PDT            5.52             62         0              Normal
  03/11/2026 03 AM PDT            5.51             61         -              Normal
  03/11/2026 04 AM PDT            5.51             61         0              Normal
  03/11/2026 05 AM PDT            5.51             61         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.