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 FeetForecast Type: Unofficial Location
Location: Santa Clara County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Feb 26 2026 at 1:37 PM PSTNext Issuance: Feb 27 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:  02/26/2026 at 01:39 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/21/2026 at 01:00 PM PST
# Maximum Observed Stage:                       7.06 Feet
# Maximum Observed Flow:                        330 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/26/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       5.71 Feet
# Maximum Forecast Flow:                        84 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/21/2026 01 PM PST            7.06            330                        Normal
  02/21/2026 02 PM PST            7.05            328         -              Normal
  02/21/2026 03 PM PST            6.94            301         -              Normal
  02/21/2026 04 PM PST            6.82            273         -              Normal
  02/21/2026 05 PM PST            6.76            260         -              Normal
  02/21/2026 06 PM PST            6.74            256         -              Normal
  02/21/2026 07 PM PST            6.70            247         -              Normal
  02/21/2026 08 PM PST            6.67            241         -              Normal
  02/21/2026 09 PM PST            6.65            237         -              Normal
  02/21/2026 10 PM PST            6.63            232         -              Normal
  02/21/2026 11 PM PST            6.61            228         -              Normal
  02/22/2026 12 AM PST            6.60            226         -              Normal
  02/22/2026 01 AM PST            6.59            224         -              Normal
  02/22/2026 02 AM PST            6.58            222         -              Normal
  02/22/2026 03 AM PST            6.59            224         +              Normal
  02/22/2026 04 AM PST            6.59            224         0              Normal
  02/22/2026 05 AM PST            6.58            222         -              Normal
  02/22/2026 06 AM PST            6.58            222         0              Normal
  02/22/2026 07 AM PST            6.57            220         -              Normal
  02/22/2026 08 AM PST            6.57            220         0              Normal
  02/22/2026 09 AM PST            6.57            220         0              Normal
  02/22/2026 10 AM PST            6.59            224         +              Normal
  02/22/2026 11 AM PST            6.62            230         +              Normal
  02/22/2026 12 PM PST            6.60            226         -              Normal
  02/22/2026 01 PM PST            6.57            220         -              Normal
  02/22/2026 02 PM PST            6.57            220         0              Normal
  02/22/2026 03 PM PST            6.56            218         -              Normal
  02/22/2026 04 PM PST            6.55            216         -              Normal
  02/22/2026 05 PM PST            6.54            214         -              Normal
  02/22/2026 06 PM PST            6.52            210         -              Normal
  02/22/2026 07 PM PST            6.50            206         -              Normal
  02/22/2026 08 PM PST            6.48            203         -              Normal
  02/22/2026 09 PM PST            6.47            201         -              Normal
  02/22/2026 10 PM PST            6.49            204         +              Normal
  02/22/2026 11 PM PST            6.47            201         -              Normal
  02/23/2026 12 AM PST            6.44            195         -              Normal
  02/23/2026 01 AM PST            6.44            195         0              Normal
  02/23/2026 02 AM PST            6.42            191         -              Normal
  02/23/2026 03 AM PST            6.41            190         -              Normal
  02/23/2026 04 AM PST            6.40            188         -              Normal
  02/23/2026 05 AM PST            6.40            188         0              Normal
  02/23/2026 06 AM PST            6.40            188         0              Normal
  02/23/2026 07 AM PST            6.40            188         0              Normal
  02/23/2026 08 AM PST            6.41            190         +              Normal
  02/23/2026 09 AM PST            6.39            186         -              Normal
  02/23/2026 10 AM PST            6.38            184         -              Normal
  02/23/2026 11 AM PST            6.37            182         -              Normal
  02/23/2026 12 PM PST            6.37            182         0              Normal
  02/23/2026 01 PM PST            6.36            181         -              Normal
  02/23/2026 02 PM PST            6.32            174         -              Normal
  02/23/2026 03 PM PST            6.26            163         -              Normal
  02/23/2026 04 PM PST            6.22            157         -              Normal
  02/23/2026 05 PM PST            6.19            152         -              Normal
  02/23/2026 06 PM PST            6.16            147         -              Normal
  02/23/2026 07 PM PST            6.14            144         -              Normal
  02/23/2026 08 PM PST            6.13            142         -              Normal
  02/23/2026 09 PM PST            6.12            141         -              Normal
  02/23/2026 10 PM PST            6.14            144         +              Normal
  02/23/2026 11 PM PST            6.12            141         -              Normal
  02/24/2026 12 AM PST            6.10            138         -              Normal
  02/24/2026 01 AM PST            6.06            131         -              Normal
  02/24/2026 02 AM PST            6.00            123         -              Normal
  02/24/2026 03 AM PST            5.97            118         -              Normal
  02/24/2026 04 AM PST            5.95            115         -              Normal
  02/24/2026 05 AM PST            5.94            114         -              Normal
  02/24/2026 06 AM PST            5.93            113         -              Normal
  02/24/2026 07 AM PST            5.92            111         -              Normal
  02/24/2026 08 AM PST            5.92            111         0              Normal
  02/24/2026 09 AM PST            5.91            110         -              Normal
  02/24/2026 10 AM PST            5.91            110         0              Normal
  02/24/2026 11 AM PST            5.91            110         0              Normal
  02/24/2026 12 PM PST            5.90            109         -              Normal
  02/24/2026 01 PM PST            5.90            109         0              Normal
  02/24/2026 02 PM PST            5.90            109         0              Normal
  02/24/2026 03 PM PST            5.90            109         0              Normal
  02/24/2026 04 PM PST            5.90            109         0              Normal
  02/24/2026 05 PM PST            5.89            107         -              Normal
  02/24/2026 06 PM PST            5.88            106         -              Normal
  02/24/2026 07 PM PST            5.87            104         -              Normal
  02/24/2026 08 PM PST            5.86            103         -              Normal
  02/24/2026 09 PM PST            5.85            102         -              Normal
  02/24/2026 10 PM PST            5.84            100         -              Normal
  02/24/2026 11 PM PST            5.83             99         -              Normal
  02/25/2026 12 AM PST            5.82             98         -              Normal
  02/25/2026 01 AM PST            5.81             96         -              Normal
  02/25/2026 02 AM PST            5.80             95         -              Normal
  02/25/2026 03 AM PST            5.80             95         0              Normal
  02/25/2026 04 AM PST            5.79             94         -              Normal
  02/25/2026 05 AM PST            5.79             94         0              Normal
  02/25/2026 06 AM PST            5.79             94         0              Normal
  02/25/2026 07 AM PST            5.79             94         0              Normal
  02/25/2026 08 AM PST            5.78             93         -              Normal
  02/25/2026 09 AM PST            5.78             93         0              Normal
  02/25/2026 10 AM PST            5.78             93         0              Normal
  02/25/2026 11 AM PST            5.78             93         0              Normal
  02/25/2026 12 PM PST            5.78             93         0              Normal
  02/25/2026 01 PM PST            5.78             93         0              Normal
  02/25/2026 02 PM PST            5.80             95         +              Normal
  02/25/2026 03 PM PST            5.79             94         -              Normal
  02/25/2026 04 PM PST            5.77             91         -              Normal
  02/25/2026 05 PM PST            5.76             90         -              Normal
  02/25/2026 06 PM PST            5.76             90         0              Normal
  02/25/2026 07 PM PST            5.76             90         0              Normal
  02/25/2026 08 PM PST            5.75             89         -              Normal
  02/25/2026 09 PM PST            5.75             89         0              Normal
  02/25/2026 10 PM PST            5.74             88         -              Normal
  02/25/2026 11 PM PST            5.74             88         0              Normal
  02/26/2026 12 AM PST            5.74             88         0              Normal
  02/26/2026 01 AM PST            5.73             86         -              Normal
  02/26/2026 02 AM PST            5.73             86         0              Normal
  02/26/2026 03 AM PST            5.73             86         0              Normal
  02/26/2026 04 AM PST            5.72             85         -              Normal
  02/26/2026 05 AM PST            5.72             85         0              Normal
  02/26/2026 06 AM PST            5.72             85         0              Normal
  02/26/2026 07 AM PST            5.72             85         0              Normal
  02/26/2026 08 AM PST            5.72             85         0              Normal
  02/26/2026 09 AM PST            5.72             85         0              Normal
  02/26/2026 10 AM PST            5.72             85         0              Normal
  02/26/2026 11 AM PST            5.72             85         0              Normal
  02/26/2026 12 PM PST            5.72             85         0              Normal
  02/26/2026 01 PM PST            5.72             85         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/26/2026 02 PM PST            5.71             84                        Normal
  02/26/2026 03 PM PST            5.71             84         0              Normal
  02/26/2026 04 PM PST            5.70             83         -              Normal
  02/26/2026 05 PM PST            5.70             83         0              Normal
  02/26/2026 06 PM PST            5.70             83         0              Normal
  02/26/2026 07 PM PST            5.70             83         0              Normal
  02/26/2026 08 PM PST            5.69             81         -              Normal
  02/26/2026 09 PM PST            5.69             81         0              Normal
  02/26/2026 10 PM PST            5.69             81         0              Normal
  02/26/2026 11 PM PST            5.68             80         -              Normal
  02/27/2026 12 AM PST            5.68             80         0              Normal
  02/27/2026 01 AM PST            5.68             80         0              Normal
  02/27/2026 02 AM PST            5.68             80         0              Normal
  02/27/2026 03 AM PST            5.68             80         0              Normal
  02/27/2026 04 AM PST            5.67             79         -              Normal
  02/27/2026 05 AM PST            5.67             79         0              Normal
  02/27/2026 06 AM PST            5.67             79         0              Normal
  02/27/2026 07 AM PST            5.67             79         0              Normal
  02/27/2026 08 AM PST            5.67             79         0              Normal
  02/27/2026 09 AM PST            5.66             78         -              Normal
  02/27/2026 10 AM PST            5.66             78         0              Normal
  02/27/2026 11 AM PST            5.66             78         0              Normal
  02/27/2026 12 PM PST            5.66             78         0              Normal
  02/27/2026 01 PM PST            5.66             78         0              Normal
  02/27/2026 02 PM PST            5.66             78         0              Normal
  02/27/2026 03 PM PST            5.65             77         -              Normal
  02/27/2026 04 PM PST            5.65             77         0              Normal
  02/27/2026 05 PM PST            5.65             77         0              Normal
  02/27/2026 06 PM PST            5.65             77         0              Normal
  02/27/2026 07 PM PST            5.65             77         0              Normal
  02/27/2026 08 PM PST            5.64             76         -              Normal
  02/27/2026 09 PM PST            5.64             76         0              Normal
  02/27/2026 10 PM PST            5.64             76         0              Normal
  02/27/2026 11 PM PST            5.64             76         0              Normal
  02/28/2026 12 AM PST            5.64             76         0              Normal
  02/28/2026 01 AM PST            5.64             76         0              Normal
  02/28/2026 02 AM PST            5.63             74         -              Normal
  02/28/2026 03 AM PST            5.63             74         0              Normal
  02/28/2026 04 AM PST            5.63             74         0              Normal
  02/28/2026 05 AM PST            5.63             74         0              Normal
  02/28/2026 06 AM PST            5.63             74         0              Normal
  02/28/2026 07 AM PST            5.63             74         0              Normal
  02/28/2026 08 AM PST            5.63             74         0              Normal
  02/28/2026 09 AM PST            5.62             73         -              Normal
  02/28/2026 10 AM PST            5.62             73         0              Normal
  02/28/2026 11 AM PST            5.62             73         0              Normal
  02/28/2026 12 PM PST            5.62             73         0              Normal
  02/28/2026 01 PM PST            5.62             73         0              Normal
  02/28/2026 02 PM PST            5.62             73         0              Normal
  02/28/2026 03 PM PST            5.62             73         0              Normal
  02/28/2026 04 PM PST            5.61             72         -              Normal
  02/28/2026 05 PM PST            5.61             72         0              Normal
  02/28/2026 06 PM PST            5.61             72         0              Normal
  02/28/2026 07 PM PST            5.61             72         0              Normal
  02/28/2026 08 PM PST            5.61             72         0              Normal
  02/28/2026 09 PM PST            5.61             72         0              Normal
  02/28/2026 10 PM PST            5.61             72         0              Normal
  02/28/2026 11 PM PST            5.60             71         -              Normal
  03/01/2026 12 AM PST            5.60             71         0              Normal
  03/01/2026 01 AM PST            5.60             71         0              Normal
  03/01/2026 02 AM PST            5.60             71         0              Normal
  03/01/2026 03 AM PST            5.60             71         0              Normal
  03/01/2026 04 AM PST            5.60             71         0              Normal
  03/01/2026 05 AM PST            5.59             70         -              Normal
  03/01/2026 06 AM PST            5.59             70         0              Normal
  03/01/2026 07 AM PST            5.59             70         0              Normal
  03/01/2026 08 AM PST            5.59             70         0              Normal
  03/01/2026 09 AM PST            5.59             70         0              Normal
  03/01/2026 10 AM PST            5.59             70         0              Normal
  03/01/2026 11 AM PST            5.59             70         0              Normal
  03/01/2026 12 PM PST            5.59             70         0              Normal
  03/01/2026 01 PM PST            5.58             69         -              Normal
  03/01/2026 02 PM PST            5.58             69         0              Normal
  03/01/2026 03 PM PST            5.58             69         0              Normal
  03/01/2026 04 PM PST            5.58             69         0              Normal
  03/01/2026 05 PM PST            5.58             69         0              Normal
  03/01/2026 06 PM PST            5.58             69         0              Normal
  03/01/2026 07 PM PST            5.58             69         0              Normal
  03/01/2026 08 PM PST            5.58             69         0              Normal
  03/01/2026 09 PM PST            5.58             69         0              Normal
  03/01/2026 10 PM PST            5.57             68         -              Normal
  03/01/2026 11 PM PST            5.57             68         0              Normal
  03/02/2026 12 AM PST            5.57             68         0              Normal
  03/02/2026 01 AM PST            5.57             68         0              Normal
  03/02/2026 02 AM PST            5.57             68         0              Normal
  03/02/2026 03 AM PST            5.57             68         0              Normal
  03/02/2026 04 AM PST            5.57             68         0              Normal
  03/02/2026 05 AM PST            5.57             68         0              Normal
  03/02/2026 06 AM PST            5.56             67         -              Normal
  03/02/2026 07 AM PST            5.56             67         0              Normal
  03/02/2026 08 AM PST            5.56             67         0              Normal
  03/02/2026 09 AM PST            5.56             67         0              Normal
  03/02/2026 10 AM PST            5.56             67         0              Normal
  03/02/2026 11 AM PST            5.56             67         0              Normal
  03/02/2026 12 PM PST            5.56             67         0              Normal
  03/02/2026 01 PM PST            5.56             67         0              Normal
  03/02/2026 02 PM PST            5.55             65         -              Normal
  03/02/2026 03 PM PST            5.55             65         0              Normal
  03/02/2026 04 PM PST            5.55             65         0              Normal
  03/02/2026 05 PM PST            5.55             65         0              Normal
  03/02/2026 06 PM PST            5.55             65         0              Normal
  03/02/2026 07 PM PST            5.55             65         0              Normal
  03/02/2026 08 PM PST            5.55             65         0              Normal
  03/02/2026 09 PM PST            5.55             65         0              Normal
  03/02/2026 10 PM PST            5.55             65         0              Normal
  03/02/2026 11 PM PST            5.54             64         -              Normal
  03/03/2026 12 AM PST            5.54             64         0              Normal
  03/03/2026 01 AM PST            5.54             64         0              Normal
  03/03/2026 02 AM PST            5.54             64         0              Normal
  03/03/2026 03 AM PST            5.54             64         0              Normal
  03/03/2026 04 AM PST            5.54             64         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.