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: Nov 14 2026 at 10:25 AM PSTNext Issuance: Nov 15 2026 at 9:00 AM PST
Action: 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:  11/14/2026 at 10:26 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/13/2026 at 05:00 PM PST
# Maximum Observed Stage:                       7.85 Feet
# Maximum Observed Flow:                        547 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/18/2026 at 06:00 PM PST
# Maximum Forecast Stage:                       7.85 Feet
# Maximum Forecast Flow:                        547 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  11/09/2026 10 AM PST            5.18             29                        Normal
  11/09/2026 11 AM PST            5.18             29         0              Normal
  11/09/2026 12 PM PST            5.18             29         0              Normal
  11/09/2026 01 PM PST            5.17             28         -              Normal
  11/09/2026 02 PM PST            5.16             27         -              Normal
  11/09/2026 03 PM PST            5.17             28         +              Normal
  11/09/2026 04 PM PST            5.16             27         -              Normal
  11/09/2026 05 PM PST            5.16             27         0              Normal
  11/09/2026 06 PM PST            5.17             28         +              Normal
  11/09/2026 07 PM PST            5.17             28         0              Normal
  11/09/2026 08 PM PST            5.16             27         -              Normal
  11/09/2026 09 PM PST            5.16             27         0              Normal
  11/09/2026 10 PM PST            5.16             27         0              Normal
  11/09/2026 11 PM PST            5.16             27         0              Normal
  11/10/2026 12 AM PST            5.15             27         -              Normal
  11/10/2026 01 AM PST            5.15             27         0              Normal
  11/10/2026 02 AM PST            5.15             27         0              Normal
  11/10/2026 03 AM PST            5.15             27         0              Normal
  11/10/2026 04 AM PST            5.15             27         0              Normal
  11/10/2026 05 AM PST            5.15             27         0              Normal
  11/10/2026 06 AM PST            5.15             27         0              Normal
  11/10/2026 07 AM PST            5.15             27         0              Normal
  11/10/2026 08 AM PST            5.15             27         0              Normal
  11/10/2026 09 AM PST            5.16             27         +              Normal
  11/10/2026 10 AM PST            5.17             28         +              Normal
  11/10/2026 11 AM PST            5.16             27         -              Normal
  11/10/2026 12 PM PST            5.16             27         0              Normal
  11/10/2026 01 PM PST            5.17             28         +              Normal
  11/10/2026 02 PM PST            5.16             27         -              Normal
  11/10/2026 03 PM PST            5.15             27         -              Normal
  11/10/2026 04 PM PST            5.15             27         0              Normal
  11/10/2026 05 PM PST            5.15             27         0              Normal
  11/10/2026 06 PM PST            5.15             27         0              Normal
  11/10/2026 07 PM PST            5.15             27         0              Normal
  11/10/2026 08 PM PST            5.15             27         0              Normal
  11/10/2026 09 PM PST            5.15             27         0              Normal
  11/10/2026 10 PM PST            5.15             27         0              Normal
  11/10/2026 11 PM PST            5.15             27         0              Normal
  11/11/2026 12 AM PST            5.15             27         0              Normal
  11/11/2026 01 AM PST            5.15             27         0              Normal
  11/11/2026 02 AM PST            5.15             27         0              Normal
  11/11/2026 03 AM PST            5.15             27         0              Normal
  11/11/2026 04 AM PST            5.15             27         0              Normal
  11/11/2026 05 AM PST            5.15             27         0              Normal
  11/11/2026 06 AM PST            5.15             27         0              Normal
  11/11/2026 07 AM PST            5.16             27         +              Normal
  11/11/2026 08 AM PST            5.16             27         0              Normal
  11/11/2026 09 AM PST            5.16             27         0              Normal
  11/11/2026 10 AM PST            5.16             27         0              Normal
  11/11/2026 11 AM PST            5.16             27         0              Normal
  11/11/2026 12 PM PST            5.16             27         0              Normal
  11/11/2026 01 PM PST            5.16             27         0              Normal
  11/11/2026 02 PM PST            5.16             27         0              Normal
  11/11/2026 03 PM PST            5.17             28         +              Normal
  11/11/2026 04 PM PST            5.16             27         -              Normal
  11/11/2026 05 PM PST            5.16             27         0              Normal
  11/11/2026 06 PM PST            5.16             27         0              Normal
  11/11/2026 07 PM PST            5.16             27         0              Normal
  11/11/2026 08 PM PST            5.16             27         0              Normal
  11/11/2026 09 PM PST            5.15             27         -              Normal
  11/11/2026 10 PM PST            5.15             27         0              Normal
  11/11/2026 11 PM PST            5.15             27         0              Normal
  11/12/2026 12 AM PST            5.15             27         0              Normal
  11/12/2026 01 AM PST            5.15             27         0              Normal
  11/12/2026 02 AM PST            5.15             27         0              Normal
  11/12/2026 03 AM PST            5.15             27         0              Normal
  11/12/2026 04 AM PST            5.16             27         +              Normal
  11/12/2026 05 AM PST            5.16             27         0              Normal
  11/12/2026 06 AM PST            5.16             27         0              Normal
  11/12/2026 07 AM PST            5.16             27         0              Normal
  11/12/2026 08 AM PST            5.16             27         0              Normal
  11/12/2026 09 AM PST            5.17             28         +              Normal
  11/12/2026 10 AM PST            5.17             28         0              Normal
  11/12/2026 11 AM PST            5.17             28         0              Normal
  11/12/2026 12 PM PST            5.16             27         -              Normal
  11/12/2026 01 PM PST            5.16             27         0              Normal
  11/12/2026 02 PM PST            5.16             27         0              Normal
  11/12/2026 03 PM PST            5.17             28         +              Normal
  11/12/2026 04 PM PST            5.17             28         0              Normal
  11/12/2026 05 PM PST            5.16             27         -              Normal
  11/12/2026 06 PM PST            5.16             27         0              Normal
  11/12/2026 07 PM PST            5.15             27         -              Normal
  11/12/2026 08 PM PST            5.15             27         0              Normal
  11/12/2026 09 PM PST            5.14             26         -              Normal
  11/12/2026 10 PM PST            5.15             27         +              Normal
  11/12/2026 11 PM PST            5.15             27         0              Normal
  11/13/2026 12 AM PST            5.15             27         0              Normal
  11/13/2026 01 AM PST            5.14             26         -              Normal
  11/13/2026 02 AM PST            5.14             26         0              Normal
  11/13/2026 03 AM PST            5.14             26         0              Normal
  11/13/2026 04 AM PST            5.14             26         0              Normal
  11/13/2026 05 AM PST            5.15             27         +              Normal
  11/13/2026 06 AM PST            5.15             27         0              Normal
  11/13/2026 07 AM PST            5.15             27         0              Normal
  11/13/2026 08 AM PST            5.15             27         0              Normal
  11/13/2026 09 AM PST            5.16             27         +              Normal
  11/13/2026 10 AM PST            5.16             27         0              Normal
  11/13/2026 11 AM PST            5.19             30         +              Normal
  11/13/2026 12 PM PST            5.65             73         +              Normal
  11/13/2026 01 PM PST            6.24            154         +              Normal
  11/13/2026 02 PM PST            6.75            251         +              Normal
  11/13/2026 03 PM PST            7.09            330         +              Normal
  11/13/2026 04 PM PST            7.59            467         +              Normal
  11/13/2026 05 PM PST            7.85            547         +              Normal
  11/13/2026 06 PM PST            7.69            497         -              Normal
  11/13/2026 07 PM PST            7.20            358         -              Normal
  11/13/2026 08 PM PST            6.79            260         -              Normal
  11/13/2026 09 PM PST            6.59            217         -              Normal
  11/13/2026 10 PM PST            6.48            196         -              Normal
  11/13/2026 11 PM PST            6.36            174         -              Normal
  11/14/2026 12 AM PST            6.25            155         -              Normal
  11/14/2026 01 AM PST            6.15            139         -              Normal
  11/14/2026 02 AM PST            6.06            126         -              Normal
  11/14/2026 03 AM PST            5.98            114         -              Normal
  11/14/2026 04 AM PST            5.91            105         -              Normal
  11/14/2026 05 AM PST            5.85             97         -              Normal
  11/14/2026 06 AM PST            5.82             93         -              Normal
  11/14/2026 07 AM PST            5.78             88         -              Normal
  11/14/2026 08 AM PST            5.71             80         -              Normal
  11/14/2026 09 AM PST            5.63             71         -              Normal
  11/14/2026 10 AM PST            5.58             65         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/14/2026 11 AM PST            5.54             61                        Normal
  11/14/2026 12 PM PST            5.51             58         -              Normal
  11/14/2026 01 PM PST            5.48             55         -              Normal
  11/14/2026 02 PM PST            5.46             53         -              Normal
  11/14/2026 03 PM PST            5.45             52         -              Normal
  11/14/2026 04 PM PST            5.43             50         -              Normal
  11/14/2026 05 PM PST            5.42             49         -              Normal
  11/14/2026 06 PM PST            5.41             48         -              Normal
  11/14/2026 07 PM PST            5.39             46         -              Normal
  11/14/2026 08 PM PST            5.38             45         -              Normal
  11/14/2026 09 PM PST            5.37             44         -              Normal
  11/14/2026 10 PM PST            5.35             43         -              Normal
  11/14/2026 11 PM PST            5.34             42         -              Normal
  11/15/2026 12 AM PST            5.33             41         -              Normal
  11/15/2026 01 AM PST            5.31             39         -              Normal
  11/15/2026 02 AM PST            5.30             38         -              Normal
  11/15/2026 03 AM PST            5.28             37         -              Normal
  11/15/2026 04 AM PST            5.27             36         -              Normal
  11/15/2026 05 AM PST            5.25             34         -              Normal
  11/15/2026 06 AM PST            5.24             34         -              Normal
  11/15/2026 07 AM PST            5.22             32         -              Normal
  11/15/2026 08 AM PST            5.21             31         -              Normal
  11/15/2026 09 AM PST            5.19             30         -              Normal
  11/15/2026 10 AM PST            5.18             29         -              Normal
  11/15/2026 11 AM PST            5.16             27         -              Normal
  11/15/2026 12 PM PST            5.14             26         -              Normal
  11/15/2026 01 PM PST            5.13             25         -              Normal
  11/15/2026 02 PM PST            5.11             24         -              Normal
  11/15/2026 03 PM PST            5.09             23         -              Normal
  11/15/2026 04 PM PST            5.08             22         -              Normal
  11/15/2026 05 PM PST            5.06             21         -              Normal
  11/15/2026 06 PM PST            5.05             20         -              Normal
  11/15/2026 07 PM PST            5.10             23         +              Normal
  11/15/2026 08 PM PST            5.32             40         +              Normal
  11/15/2026 09 PM PST            5.67             75         +              Normal
  11/15/2026 10 PM PST            5.99            116         +              Normal
  11/15/2026 11 PM PST            6.21            149         +              Normal
  11/16/2026 12 AM PST            6.39            179         +              Normal
  11/16/2026 01 AM PST            6.63            226         +              Normal
  11/16/2026 02 AM PST            6.86            275         +              Normal
  11/16/2026 03 AM PST            7.03            316         +              Normal
  11/16/2026 04 AM PST            7.26            374         +              Normal
  11/16/2026 05 AM PST            7.42            418         +              Normal
  11/16/2026 06 AM PST            7.42            418         0              Normal
  11/16/2026 07 AM PST            7.36            401         -              Normal
  11/16/2026 08 AM PST            7.25            371         -              Normal
  11/16/2026 09 AM PST            7.10            333         -              Normal
  11/16/2026 10 AM PST            6.92            289         -              Normal
  11/16/2026 11 AM PST            6.68            236         -              Normal
  11/16/2026 12 PM PST            6.40            181         -              Normal
  11/16/2026 01 PM PST            6.13            136         -              Normal
  11/16/2026 02 PM PST            5.89            102         -              Normal
  11/16/2026 03 PM PST            5.69             77         -              Normal
  11/16/2026 04 PM PST            5.52             59         -              Normal
  11/16/2026 05 PM PST            5.39             46         -              Normal
  11/16/2026 06 PM PST            5.29             38         -              Normal
  11/16/2026 07 PM PST            5.22             32         -              Normal
  11/16/2026 08 PM PST            5.17             28         -              Normal
  11/16/2026 09 PM PST            5.13             25         -              Normal
  11/16/2026 10 PM PST            5.10             23         -              Normal
  11/16/2026 11 PM PST            5.07             21         -              Normal
  11/17/2026 12 AM PST            5.04             19         -              Normal
  11/17/2026 01 AM PST            5.03             19         -              Normal
  11/17/2026 02 AM PST            5.01             18         -              Normal
  11/17/2026 03 AM PST            5.00             17         -              Normal
  11/17/2026 04 AM PST            4.99             17         -              Normal
  11/17/2026 05 AM PST            4.99             17         0              Normal
  11/17/2026 06 AM PST            4.99             17         0              Normal
  11/17/2026 07 AM PST            4.98             16         -              Normal
  11/17/2026 08 AM PST            4.98             16         0              Normal
  11/17/2026 09 AM PST            4.98             16         0              Normal
  11/17/2026 10 AM PST            4.98             16         0              Normal
  11/17/2026 11 AM PST            4.98             16         0              Normal
  11/17/2026 12 PM PST            4.98             16         0              Normal
  11/17/2026 01 PM PST            4.98             16         0              Normal
  11/17/2026 02 PM PST            4.98             16         0              Normal
  11/17/2026 03 PM PST            4.98             16         0              Normal
  11/17/2026 04 PM PST            4.98             16         0              Normal
  11/17/2026 05 PM PST            4.98             16         0              Normal
  11/17/2026 06 PM PST            4.98             16         0              Normal
  11/17/2026 07 PM PST            4.98             16         0              Normal
  11/17/2026 08 PM PST            4.98             16         0              Normal
  11/17/2026 09 PM PST            4.98             16         0              Normal
  11/17/2026 10 PM PST            4.98             16         0              Normal
  11/17/2026 11 PM PST            4.98             16         0              Normal
  11/18/2026 12 AM PST            4.98             16         0              Normal
  11/18/2026 01 AM PST            4.99             17         +              Normal
  11/18/2026 02 AM PST            5.04             19         +              Normal
  11/18/2026 03 AM PST            5.15             27         +              Normal
  11/18/2026 04 AM PST            5.29             38         +              Normal
  11/18/2026 05 AM PST            5.41             48         +              Normal
  11/18/2026 06 AM PST            5.49             56         +              Normal
  11/18/2026 07 AM PST            5.57             64         +              Normal
  11/18/2026 08 AM PST            5.77             87         +              Normal
  11/18/2026 09 AM PST            6.24            154         +              Normal
  11/18/2026 10 AM PST            6.72            244         +              Normal
  11/18/2026 11 AM PST            7.03            316         +              Normal
  11/18/2026 12 PM PST            7.21            361         +              Normal
  11/18/2026 01 PM PST            7.34            396         +              Normal
  11/18/2026 02 PM PST            7.49            437         +              Normal
  11/18/2026 03 PM PST            7.66            488         +              Normal
  11/18/2026 04 PM PST            7.78            525         +              Normal
  11/18/2026 05 PM PST            7.83            541         +              Normal
  11/18/2026 06 PM PST            7.85            547         +              Normal
  11/18/2026 07 PM PST            7.81            534         -              Normal
  11/18/2026 08 PM PST            7.68            494         -              Normal
  11/18/2026 09 PM PST            7.57            461         -              Normal
  11/18/2026 10 PM PST            7.43            420         -              Normal
  11/18/2026 11 PM PST            7.32            390         -              Normal
  11/19/2026 12 AM PST            7.25            371         -              Normal
  11/19/2026 01 AM PST            7.22            363         -              Normal
  11/19/2026 02 AM PST            7.20            358         -              Normal
  11/19/2026 03 AM PST            7.18            353         -              Normal
  11/19/2026 04 AM PST            7.18            353         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.