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

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GUADALUPE RIVER - SAN JOSE AT US HIGHWAY 101 (GSJC1)
Latitude: 37.37º NLongitude: 121.93º WElevation: 72 Feet
Location: Santa Clara County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Feb 08 2026 at 8:15 AM PSTNext Issuance: Feb 09 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:  02/08/2026 at 08:17 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/04/2026 at 11:00 PM PST
# Maximum Observed Stage:                       5.72 Feet
# Maximum Observed Flow:                        80 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/11/2026 at 01:00 AM PST
# Maximum Forecast Stage:                       6.68 Feet
# Maximum Forecast Flow:                        221 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/03/2026 08 AM PST            5.69             76                        Normal
  02/03/2026 09 AM PST            5.69             76         0              Normal
  02/03/2026 10 AM PST            5.70             78         +              Normal
  02/03/2026 11 AM PST            5.69             76         -              Normal
  02/03/2026 12 PM PST            5.69             76         0              Normal
  02/03/2026 01 PM PST            5.68             75         -              Normal
  02/03/2026 02 PM PST            5.69             76         +              Normal
  02/03/2026 03 PM PST            5.69             76         0              Normal
  02/03/2026 04 PM PST            5.69             76         0              Normal
  02/03/2026 05 PM PST            5.71             79         +              Normal
  02/03/2026 06 PM PST            5.70             78         -              Normal
  02/03/2026 07 PM PST            5.70             78         0              Normal
  02/03/2026 08 PM PST            5.70             78         0              Normal
  02/03/2026 09 PM PST            5.69             76         -              Normal
  02/03/2026 10 PM PST            5.70             78         +              Normal
  02/03/2026 11 PM PST            5.70             78         0              Normal
  02/04/2026 12 AM PST            5.71             79         +              Normal
  02/04/2026 01 AM PST            5.70             78         -              Normal
  02/04/2026 02 AM PST            5.71             79         +              Normal
  02/04/2026 03 AM PST            5.70             78         -              Normal
  02/04/2026 04 AM PST            5.71             79         +              Normal
  02/04/2026 05 AM PST            5.71             79         0              Normal
  02/04/2026 06 AM PST            5.71             79         0              Normal
  02/04/2026 07 AM PST            5.71             79         0              Normal
  02/04/2026 08 AM PST            5.71             79         0              Normal
  02/04/2026 09 AM PST            5.71             79         0              Normal
  02/04/2026 10 AM PST            5.71             79         0              Normal
  02/04/2026 11 AM PST            5.71             79         0              Normal
  02/04/2026 12 PM PST            5.71             79         0              Normal
  02/04/2026 01 PM PST            5.71             79         0              Normal
  02/04/2026 02 PM PST            5.71             79         0              Normal
  02/04/2026 03 PM PST            5.71             79         0              Normal
  02/04/2026 04 PM PST            5.71             79         0              Normal
  02/04/2026 05 PM PST            5.71             79         0              Normal
  02/04/2026 06 PM PST            5.71             79         0              Normal
  02/04/2026 07 PM PST            5.71             79         0              Normal
  02/04/2026 08 PM PST            5.71             79         0              Normal
  02/04/2026 09 PM PST            5.72             80         +              Normal
  02/04/2026 10 PM PST            5.71             79         -              Normal
  02/04/2026 11 PM PST            5.72             80         +              Normal
  02/05/2026 12 AM PST            5.71             79         -              Normal
  02/05/2026 01 AM PST            5.71             79         0              Normal
  02/05/2026 02 AM PST            5.71             79         0              Normal
  02/05/2026 03 AM PST            5.71             79         0              Normal
  02/05/2026 04 AM PST            5.71             79         0              Normal
  02/05/2026 05 AM PST            5.71             79         0              Normal
  02/05/2026 06 AM PST            5.71             79         0              Normal
  02/05/2026 07 AM PST            5.71             79         0              Normal
  02/05/2026 08 AM PST            5.71             79         0              Normal
  02/05/2026 09 AM PST            5.71             79         0              Normal
  02/05/2026 10 AM PST            5.71             79         0              Normal
  02/05/2026 11 AM PST            5.71             79         0              Normal
  02/05/2026 12 PM PST            5.71             79         0              Normal
  02/05/2026 01 PM PST            5.71             79         0              Normal
  02/05/2026 02 PM PST            5.71             79         0              Normal
  02/05/2026 03 PM PST            5.71             79         0              Normal
  02/05/2026 04 PM PST            5.71             79         0              Normal
  02/05/2026 05 PM PST            5.70             78         -              Normal
  02/05/2026 06 PM PST            5.69             76         -              Normal
  02/05/2026 07 PM PST            5.68             75         -              Normal
  02/05/2026 08 PM PST            5.67             74         -              Normal
  02/05/2026 09 PM PST            5.66             73         -              Normal
  02/05/2026 10 PM PST            5.65             72         -              Normal
  02/05/2026 11 PM PST            5.64             71         -              Normal
  02/06/2026 12 AM PST            5.63             70         -              Normal
  02/06/2026 01 AM PST            5.62             69         -              Normal
  02/06/2026 02 AM PST            5.61             68         -              Normal
  02/06/2026 03 AM PST            5.60             67         -              Normal
  02/06/2026 04 AM PST            5.60             67         0              Normal
  02/06/2026 05 AM PST            5.59             66         -              Normal
  02/06/2026 06 AM PST            5.59             66         0              Normal
  02/06/2026 07 AM PST            5.58             65         -              Normal
  02/06/2026 08 AM PST            5.58             65         0              Normal
  02/06/2026 09 AM PST            5.57             64         -              Normal
  02/06/2026 10 AM PST            5.57             64         0              Normal
  02/06/2026 11 AM PST            5.56             63         -              Normal
  02/06/2026 12 PM PST            5.56             63         0              Normal
  02/06/2026 01 PM PST            5.55             62         -              Normal
  02/06/2026 02 PM PST            5.57             64         +              Normal
  02/06/2026 03 PM PST            5.56             63         -              Normal
  02/06/2026 04 PM PST            5.54             61         -              Normal
  02/06/2026 05 PM PST            5.54             61         0              Normal
  02/06/2026 06 PM PST            5.53             60         -              Normal
  02/06/2026 07 PM PST            5.52             59         -              Normal
  02/06/2026 08 PM PST            5.52             59         0              Normal
  02/06/2026 09 PM PST            5.51             58         -              Normal
  02/06/2026 10 PM PST            5.50             57         -              Normal
  02/06/2026 11 PM PST            5.51             58         +              Normal
  02/07/2026 12 AM PST            5.50             57         -              Normal
  02/07/2026 01 AM PST            5.50             57         0              Normal
  02/07/2026 02 AM PST            5.49             56         -              Normal
  02/07/2026 03 AM PST            5.49             56         0              Normal
  02/07/2026 04 AM PST            5.49             56         0              Normal
  02/07/2026 05 AM PST            5.49             56         0              Normal
  02/07/2026 06 AM PST            5.48             55         -              Normal
  02/07/2026 07 AM PST            5.47             54         -              Normal
  02/07/2026 08 AM PST            5.46             53         -              Normal
  02/07/2026 09 AM PST            5.46             53         0              Normal
  02/07/2026 10 AM PST            5.46             53         0              Normal
  02/07/2026 11 AM PST            5.45             52         -              Normal
  02/07/2026 12 PM PST            5.45             52         0              Normal
  02/07/2026 01 PM PST            5.44             51         -              Normal
  02/07/2026 02 PM PST            5.44             51         0              Normal
  02/07/2026 03 PM PST            5.44             51         0              Normal
  02/07/2026 04 PM PST            5.44             51         0              Normal
  02/07/2026 05 PM PST            5.42             49         -              Normal
  02/07/2026 06 PM PST            5.41             49         -              Normal
  02/07/2026 07 PM PST            5.40             48         -              Normal
  02/07/2026 08 PM PST            5.40             48         0              Normal
  02/07/2026 09 PM PST            5.40             48         0              Normal
  02/07/2026 10 PM PST            5.40             48         0              Normal
  02/07/2026 11 PM PST            5.40             48         0              Normal
  02/08/2026 12 AM PST            5.40             48         0              Normal
  02/08/2026 01 AM PST            5.40             48         0              Normal
  02/08/2026 02 AM PST            5.40             48         0              Normal
  02/08/2026 03 AM PST            5.40             48         0              Normal
  02/08/2026 04 AM PST            5.39             47         -              Normal
  02/08/2026 05 AM PST            5.40             48         +              Normal
  02/08/2026 06 AM PST            5.39             47         -              Normal
  02/08/2026 07 AM PST            5.39             47         0              Normal
  02/08/2026 08 AM PST            5.39             47         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/08/2026 09 AM PST            5.38             46                        Normal
  02/08/2026 10 AM PST            5.38             46         0              Normal
  02/08/2026 11 AM PST            5.38             46         0              Normal
  02/08/2026 12 PM PST            5.38             46         0              Normal
  02/08/2026 01 PM PST            5.38             46         0              Normal
  02/08/2026 02 PM PST            5.37             45         -              Normal
  02/08/2026 03 PM PST            5.37             45         0              Normal
  02/08/2026 04 PM PST            5.37             45         0              Normal
  02/08/2026 05 PM PST            5.37             45         0              Normal
  02/08/2026 06 PM PST            5.37             45         0              Normal
  02/08/2026 07 PM PST            5.36             44         -              Normal
  02/08/2026 08 PM PST            5.36             44         0              Normal
  02/08/2026 09 PM PST            5.36             44         0              Normal
  02/08/2026 10 PM PST            5.36             44         0              Normal
  02/08/2026 11 PM PST            5.36             44         0              Normal
  02/09/2026 12 AM PST            5.36             44         0              Normal
  02/09/2026 01 AM PST            5.35             43         -              Normal
  02/09/2026 02 AM PST            5.35             43         0              Normal
  02/09/2026 03 AM PST            5.35             43         0              Normal
  02/09/2026 04 AM PST            5.35             43         0              Normal
  02/09/2026 05 AM PST            5.35             43         0              Normal
  02/09/2026 06 AM PST            5.35             43         0              Normal
  02/09/2026 07 AM PST            5.35             43         0              Normal
  02/09/2026 08 AM PST            5.34             43         -              Normal
  02/09/2026 09 AM PST            5.34             43         0              Normal
  02/09/2026 10 AM PST            5.34             43         0              Normal
  02/09/2026 11 AM PST            5.34             43         0              Normal
  02/09/2026 12 PM PST            5.34             43         0              Normal
  02/09/2026 01 PM PST            5.34             43         0              Normal
  02/09/2026 02 PM PST            5.34             43         0              Normal
  02/09/2026 03 PM PST            5.34             43         0              Normal
  02/09/2026 04 PM PST            5.34             43         0              Normal
  02/09/2026 05 PM PST            5.33             42         -              Normal
  02/09/2026 06 PM PST            5.33             42         0              Normal
  02/09/2026 07 PM PST            5.33             42         0              Normal
  02/09/2026 08 PM PST            5.33             42         0              Normal
  02/09/2026 09 PM PST            5.33             42         0              Normal
  02/09/2026 10 PM PST            5.33             42         0              Normal
  02/09/2026 11 PM PST            5.33             42         0              Normal
  02/10/2026 12 AM PST            5.33             42         0              Normal
  02/10/2026 01 AM PST            5.33             42         0              Normal
  02/10/2026 02 AM PST            5.32             41         -              Normal
  02/10/2026 03 AM PST            5.32             41         0              Normal
  02/10/2026 04 AM PST            5.32             41         0              Normal
  02/10/2026 05 AM PST            5.32             41         0              Normal
  02/10/2026 06 AM PST            5.32             41         0              Normal
  02/10/2026 07 AM PST            5.32             41         0              Normal
  02/10/2026 08 AM PST            5.32             41         0              Normal
  02/10/2026 09 AM PST            5.32             41         0              Normal
  02/10/2026 10 AM PST            5.33             42         +              Normal
  02/10/2026 11 AM PST            5.35             43         +              Normal
  02/10/2026 12 PM PST            5.39             47         +              Normal
  02/10/2026 01 PM PST            5.44             51         +              Normal
  02/10/2026 02 PM PST            5.51             58         +              Normal
  02/10/2026 03 PM PST            5.63             70         +              Normal
  02/10/2026 04 PM PST            5.78             87         +              Normal
  02/10/2026 05 PM PST            5.92            104         +              Normal
  02/10/2026 06 PM PST            6.05            121         +              Normal
  02/10/2026 07 PM PST            6.17            138         +              Normal
  02/10/2026 08 PM PST            6.29            155         +              Normal
  02/10/2026 09 PM PST            6.42            176         +              Normal
  02/10/2026 10 PM PST            6.53            194         +              Normal
  02/10/2026 11 PM PST            6.60            206         +              Normal
  02/11/2026 12 AM PST            6.65            215         +              Normal
  02/11/2026 01 AM PST            6.68            221         +              Normal
  02/11/2026 02 AM PST            6.67            219         -              Normal
  02/11/2026 03 AM PST            6.61            208         -              Normal
  02/11/2026 04 AM PST            6.52            192         -              Normal
  02/11/2026 05 AM PST            6.43            177         -              Normal
  02/11/2026 06 AM PST            6.34            163         -              Normal
  02/11/2026 07 AM PST            6.27            152         -              Normal
  02/11/2026 08 AM PST            6.22            145         -              Normal
  02/11/2026 09 AM PST            6.17            138         -              Normal
  02/11/2026 10 AM PST            6.11            129         -              Normal
  02/11/2026 11 AM PST            6.06            122         -              Normal
  02/11/2026 12 PM PST            6.02            117         -              Normal
  02/11/2026 01 PM PST            5.99            113         -              Normal
  02/11/2026 02 PM PST            5.97            110         -              Normal
  02/11/2026 03 PM PST            5.94            106         -              Normal
  02/11/2026 04 PM PST            5.92            104         -              Normal
  02/11/2026 05 PM PST            5.89            100         -              Normal
  02/11/2026 06 PM PST            5.87             97         -              Normal
  02/11/2026 07 PM PST            5.86             96         -              Normal
  02/11/2026 08 PM PST            5.83             93         -              Normal
  02/11/2026 09 PM PST            5.78             87         -              Normal
  02/11/2026 10 PM PST            5.71             79         -              Normal
  02/11/2026 11 PM PST            5.64             71         -              Normal
  02/12/2026 12 AM PST            5.57             64         -              Normal
  02/12/2026 01 AM PST            5.52             59         -              Normal
  02/12/2026 02 AM PST            5.48             55         -              Normal
  02/12/2026 03 AM PST            5.44             51         -              Normal
  02/12/2026 04 AM PST            5.40             48         -              Normal
  02/12/2026 05 AM PST            5.37             45         -              Normal
  02/12/2026 06 AM PST            5.33             42         -              Normal
  02/12/2026 07 AM PST            5.31             40         -              Normal
  02/12/2026 08 AM PST            5.29             38         -              Normal
  02/12/2026 09 AM PST            5.28             38         -              Normal
  02/12/2026 10 AM PST            5.27             37         -              Normal
  02/12/2026 11 AM PST            5.26             36         -              Normal
  02/12/2026 12 PM PST            5.26             36         0              Normal
  02/12/2026 01 PM PST            5.25             35         -              Normal
  02/12/2026 02 PM PST            5.25             35         0              Normal
  02/12/2026 03 PM PST            5.25             35         0              Normal
  02/12/2026 04 PM PST            5.25             35         0              Normal
  02/12/2026 05 PM PST            5.25             35         0              Normal
  02/12/2026 06 PM PST            5.25             35         0              Normal
  02/12/2026 07 PM PST            5.24             34         -              Normal
  02/12/2026 08 PM PST            5.24             34         0              Normal
  02/12/2026 09 PM PST            5.24             34         0              Normal
  02/12/2026 10 PM PST            5.24             34         0              Normal
  02/12/2026 11 PM PST            5.24             34         0              Normal
  02/13/2026 12 AM PST            5.24             34         0              Normal
  02/13/2026 01 AM PST            5.24             34         0              Normal
  02/13/2026 02 AM PST            5.24             34         0              Normal
  02/13/2026 03 AM PST            5.23             34         -              Normal
  02/13/2026 04 AM PST            5.23             34         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.