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 02 2026 at 12:53 PM PSTNext Issuance: Nov 03 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:  11/02/2026 at 12:54 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/01/2026 at 08:00 AM PST
# Maximum Observed Stage:                       5.28 Feet
# Maximum Observed Flow:                        35 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/03/2026 at 09:00 PM PST
# Maximum Forecast Stage:                       5.70 Feet
# Maximum Forecast Flow:                        76 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/28/2026 01 PM PDT            5.13             24                        Normal
  10/28/2026 02 PM PDT            5.12             23         -              Normal
  10/28/2026 03 PM PDT            5.12             23         0              Normal
  10/28/2026 04 PM PDT            5.12             23         0              Normal
  10/28/2026 05 PM PDT            5.11             23         -              Normal
  10/28/2026 06 PM PDT            5.12             23         +              Normal
  10/28/2026 07 PM PDT            5.12             23         0              Normal
  10/28/2026 08 PM PDT            5.11             23         -              Normal
  10/28/2026 09 PM PDT            5.11             23         0              Normal
  10/28/2026 10 PM PDT            5.12             23         +              Normal
  10/28/2026 11 PM PDT            5.14             25         +              Normal
  10/29/2026 12 AM PDT            5.14             25         0              Normal
  10/29/2026 01 AM PDT            5.14             25         0              Normal
  10/29/2026 02 AM PDT            5.14             25         0              Normal
  10/29/2026 03 AM PDT            5.13             24         -              Normal
  10/29/2026 04 AM PDT            5.13             24         0              Normal
  10/29/2026 05 AM PDT            5.13             24         0              Normal
  10/29/2026 06 AM PDT            5.14             25         +              Normal
  10/29/2026 07 AM PDT            5.14             25         0              Normal
  10/29/2026 08 AM PDT            5.14             25         0              Normal
  10/29/2026 09 AM PDT            5.15             25         +              Normal
  10/29/2026 10 AM PDT            5.15             25         0              Normal
  10/29/2026 11 AM PDT            5.14             25         -              Normal
  10/29/2026 12 PM PDT            5.15             25         +              Normal
  10/29/2026 01 PM PDT            5.15             25         0              Normal
  10/29/2026 02 PM PDT            5.16             26         +              Normal
  10/29/2026 03 PM PDT            5.17             27         +              Normal
  10/29/2026 04 PM PDT            5.17             27         0              Normal
  10/29/2026 05 PM PDT            5.17             27         0              Normal
  10/29/2026 06 PM PDT            5.18             27         +              Normal
  10/29/2026 07 PM PDT            5.16             26         -              Normal
  10/29/2026 08 PM PDT            5.14             25         -              Normal
  10/29/2026 09 PM PDT            5.13             24         -              Normal
  10/29/2026 10 PM PDT            5.13             24         0              Normal
  10/29/2026 11 PM PDT            5.14             25         +              Normal
  10/30/2026 12 AM PDT            5.13             24         -              Normal
  10/30/2026 01 AM PDT            5.13             24         0              Normal
  10/30/2026 02 AM PDT            5.13             24         0              Normal
  10/30/2026 03 AM PDT            5.13             24         0              Normal
  10/30/2026 04 AM PDT            5.13             24         0              Normal
  10/30/2026 05 AM PDT            5.13             24         0              Normal
  10/30/2026 06 AM PDT            5.13             24         0              Normal
  10/30/2026 07 AM PDT            5.13             24         0              Normal
  10/30/2026 08 AM PDT            5.13             24         0              Normal
  10/30/2026 09 AM PDT            5.13             24         0              Normal
  10/30/2026 10 AM PDT            5.14             25         +              Normal
  10/30/2026 11 AM PDT            5.14             25         0              Normal
  10/30/2026 12 PM PDT            5.14             25         0              Normal
  10/30/2026 01 PM PDT            5.14             25         0              Normal
  10/30/2026 02 PM PDT            5.14             25         0              Normal
  10/30/2026 03 PM PDT            5.14             25         0              Normal
  10/30/2026 04 PM PDT            5.14             25         0              Normal
  10/30/2026 05 PM PDT            5.14             25         0              Normal
  10/30/2026 06 PM PDT            5.13             24         -              Normal
  10/30/2026 07 PM PDT            5.13             24         0              Normal
  10/30/2026 08 PM PDT            5.14             25         +              Normal
  10/30/2026 09 PM PDT            5.13             24         -              Normal
  10/30/2026 10 PM PDT            5.13             24         0              Normal
  10/30/2026 11 PM PDT            5.13             24         0              Normal
  10/31/2026 12 AM PDT            5.13             24         0              Normal
  10/31/2026 01 AM PDT            5.13             24         0              Normal
  10/31/2026 02 AM PDT            5.13             24         0              Normal
  10/31/2026 03 AM PDT            5.14             25         +              Normal
  10/31/2026 04 AM PDT            5.14             25         0              Normal
  10/31/2026 05 AM PDT            5.14             25         0              Normal
  10/31/2026 06 AM PDT            5.15             25         +              Normal
  10/31/2026 07 AM PDT            5.15             25         0              Normal
  10/31/2026 08 AM PDT            5.15             25         0              Normal
  10/31/2026 09 AM PDT            5.15             25         0              Normal
  10/31/2026 10 AM PDT            5.16             26         +              Normal
  10/31/2026 11 AM PDT            5.15             25         -              Normal
  10/31/2026 12 PM PDT            5.15             25         0              Normal
  10/31/2026 01 PM PDT            5.16             26         +              Normal
  10/31/2026 02 PM PDT            5.15             25         -              Normal
  10/31/2026 03 PM PDT            5.15             25         0              Normal
  10/31/2026 04 PM PDT            5.15             25         0              Normal
  10/31/2026 05 PM PDT            5.15             25         0              Normal
  10/31/2026 06 PM PDT            5.14             25         -              Normal
  10/31/2026 07 PM PDT            5.13             24         -              Normal
  10/31/2026 08 PM PDT            5.13             24         0              Normal
  10/31/2026 09 PM PDT            5.13             24         0              Normal
  10/31/2026 10 PM PDT            5.13             24         0              Normal
  10/31/2026 11 PM PDT            5.13             24         0              Normal
  11/01/2026 12 AM PDT            5.13             24         0              Normal
  11/01/2026 01 AM PDT            5.14             25         +              Normal
  11/01/2026 01 AM PST            5.15             25         +              Normal
  11/01/2026 02 AM PST            5.15             25         0              Normal
  11/01/2026 03 AM PST            5.16             26         +              Normal
  11/01/2026 04 AM PST            5.18             27         +              Normal
  11/01/2026 05 AM PST            5.19             28         +              Normal
  11/01/2026 06 AM PST            5.22             30         +              Normal
  11/01/2026 07 AM PST            5.28             35         +              Normal
  11/01/2026 08 AM PST            5.28             35         0              Normal
  11/01/2026 09 AM PST            5.26             34         -              Normal
  11/01/2026 10 AM PST            5.24             32         -              Normal
  11/01/2026 11 AM PST            5.23             31         -              Normal
  11/01/2026 12 PM PST            5.21             30         -              Normal
  11/01/2026 01 PM PST            5.20             29         -              Normal
  11/01/2026 02 PM PST            5.19             28         -              Normal
  11/01/2026 03 PM PST            5.19             28         0              Normal
  11/01/2026 04 PM PST            5.22             30         +              Normal
  11/01/2026 05 PM PST            5.24             32         +              Normal
  11/01/2026 06 PM PST            5.24             32         0              Normal
  11/01/2026 07 PM PST            5.23             31         -              Normal
  11/01/2026 08 PM PST            5.21             30         -              Normal
  11/01/2026 09 PM PST            5.21             30         0              Normal
  11/01/2026 10 PM PST            5.21             30         0              Normal
  11/01/2026 11 PM PST            5.21             30         0              Normal
  11/02/2026 12 AM PST            5.21             30         0              Normal
  11/02/2026 01 AM PST            5.20             29         -              Normal
  11/02/2026 02 AM PST            5.20             29         0              Normal
  11/02/2026 03 AM PST            5.19             28         -              Normal
  11/02/2026 04 AM PST            5.19             28         0              Normal
  11/02/2026 05 AM PST            5.18             27         -              Normal
  11/02/2026 06 AM PST            5.18             27         0              Normal
  11/02/2026 07 AM PST            5.18             27         0              Normal
  11/02/2026 08 AM PST            5.17             27         -              Normal
  11/02/2026 09 AM PST            5.17             27         0              Normal
  11/02/2026 10 AM PST            5.17             27         0              Normal
  11/02/2026 11 AM PST            5.17             27         0              Normal
  11/02/2026 12 PM PST            5.17             27         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/02/2026 01 PM PST            5.17             27                        Normal
  11/02/2026 02 PM PST            5.17             27         0              Normal
  11/02/2026 03 PM PST            5.17             27         0              Normal
  11/02/2026 04 PM PST            5.17             27         0              Normal
  11/02/2026 05 PM PST            5.17             27         0              Normal
  11/02/2026 06 PM PST            5.17             27         0              Normal
  11/02/2026 07 PM PST            5.17             27         0              Normal
  11/02/2026 08 PM PST            5.17             27         0              Normal
  11/02/2026 09 PM PST            5.17             27         0              Normal
  11/02/2026 10 PM PST            5.17             27         0              Normal
  11/02/2026 11 PM PST            5.17             27         0              Normal
  11/03/2026 12 AM PST            5.17             27         0              Normal
  11/03/2026 01 AM PST            5.17             27         0              Normal
  11/03/2026 02 AM PST            5.17             27         0              Normal
  11/03/2026 03 AM PST            5.17             27         0              Normal
  11/03/2026 04 AM PST            5.17             27         0              Normal
  11/03/2026 05 AM PST            5.17             27         0              Normal
  11/03/2026 06 AM PST            5.17             27         0              Normal
  11/03/2026 07 AM PST            5.17             27         0              Normal
  11/03/2026 08 AM PST            5.17             27         0              Normal
  11/03/2026 09 AM PST            5.17             27         0              Normal
  11/03/2026 10 AM PST            5.17             27         0              Normal
  11/03/2026 11 AM PST            5.17             27         0              Normal
  11/03/2026 12 PM PST            5.17             27         0              Normal
  11/03/2026 01 PM PST            5.18             27         +              Normal
  11/03/2026 02 PM PST            5.20             29         +              Normal
  11/03/2026 03 PM PST            5.24             32         +              Normal
  11/03/2026 04 PM PST            5.31             38         +              Normal
  11/03/2026 05 PM PST            5.37             43         +              Normal
  11/03/2026 06 PM PST            5.42             47         +              Normal
  11/03/2026 07 PM PST            5.51             56         +              Normal
  11/03/2026 08 PM PST            5.63             68         +              Normal
  11/03/2026 09 PM PST            5.70             76         +              Normal
  11/03/2026 10 PM PST            5.66             72         -              Normal
  11/03/2026 11 PM PST            5.58             63         -              Normal
  11/04/2026 12 AM PST            5.47             52         -              Normal
  11/04/2026 01 AM PST            5.38             44         -              Normal
  11/04/2026 02 AM PST            5.32             38         -              Normal
  11/04/2026 03 AM PST            5.29             36         -              Normal
  11/04/2026 04 AM PST            5.26             34         -              Normal
  11/04/2026 05 AM PST            5.24             32         -              Normal
  11/04/2026 06 AM PST            5.21             30         -              Normal
  11/04/2026 07 AM PST            5.20             29         -              Normal
  11/04/2026 08 AM PST            5.19             28         -              Normal
  11/04/2026 09 AM PST            5.19             28         0              Normal
  11/04/2026 10 AM PST            5.18             27         -              Normal
  11/04/2026 11 AM PST            5.18             27         0              Normal
  11/04/2026 12 PM PST            5.18             27         0              Normal
  11/04/2026 01 PM PST            5.18             27         0              Normal
  11/04/2026 02 PM PST            5.18             27         0              Normal
  11/04/2026 03 PM PST            5.18             27         0              Normal
  11/04/2026 04 PM PST            5.18             27         0              Normal
  11/04/2026 05 PM PST            5.18             27         0              Normal
  11/04/2026 06 PM PST            5.18             27         0              Normal
  11/04/2026 07 PM PST            5.18             27         0              Normal
  11/04/2026 08 PM PST            5.18             27         0              Normal
  11/04/2026 09 PM PST            5.18             27         0              Normal
  11/04/2026 10 PM PST            5.18             27         0              Normal
  11/04/2026 11 PM PST            5.18             27         0              Normal
  11/05/2026 12 AM PST            5.18             27         0              Normal
  11/05/2026 01 AM PST            5.18             27         0              Normal
  11/05/2026 02 AM PST            5.18             27         0              Normal
  11/05/2026 03 AM PST            5.18             27         0              Normal
  11/05/2026 04 AM PST            5.18             27         0              Normal
  11/05/2026 05 AM PST            5.18             27         0              Normal
  11/05/2026 06 AM PST            5.18             27         0              Normal
  11/05/2026 07 AM PST            5.18             27         0              Normal
  11/05/2026 08 AM PST            5.18             27         0              Normal
  11/05/2026 09 AM PST            5.18             27         0              Normal
  11/05/2026 10 AM PST            5.18             27         0              Normal
  11/05/2026 11 AM PST            5.18             27         0              Normal
  11/05/2026 12 PM PST            5.18             27         0              Normal
  11/05/2026 01 PM PST            5.18             27         0              Normal
  11/05/2026 02 PM PST            5.18             27         0              Normal
  11/05/2026 03 PM PST            5.18             27         0              Normal
  11/05/2026 04 PM PST            5.18             27         0              Normal
  11/05/2026 05 PM PST            5.18             27         0              Normal
  11/05/2026 06 PM PST            5.18             27         0              Normal
  11/05/2026 07 PM PST            5.18             27         0              Normal
  11/05/2026 08 PM PST            5.18             27         0              Normal
  11/05/2026 09 PM PST            5.18             27         0              Normal
  11/05/2026 10 PM PST            5.18             27         0              Normal
  11/05/2026 11 PM PST            5.18             27         0              Normal
  11/06/2026 12 AM PST            5.18             27         0              Normal
  11/06/2026 01 AM PST            5.18             27         0              Normal
  11/06/2026 02 AM PST            5.18             27         0              Normal
  11/06/2026 03 AM PST            5.18             27         0              Normal
  11/06/2026 04 AM PST            5.18             27         0              Normal
  11/06/2026 05 AM PST            5.18             27         0              Normal
  11/06/2026 06 AM PST            5.18             27         0              Normal
  11/06/2026 07 AM PST            5.18             27         0              Normal
  11/06/2026 08 AM PST            5.18             27         0              Normal
  11/06/2026 09 AM PST            5.18             27         0              Normal
  11/06/2026 10 AM PST            5.18             27         0              Normal
  11/06/2026 11 AM PST            5.18             27         0              Normal
  11/06/2026 12 PM PST            5.18             27         0              Normal
  11/06/2026 01 PM PST            5.18             27         0              Normal
  11/06/2026 02 PM PST            5.18             27         0              Normal
  11/06/2026 03 PM PST            5.18             27         0              Normal
  11/06/2026 04 PM PST            5.18             27         0              Normal
  11/06/2026 05 PM PST            5.18             27         0              Normal
  11/06/2026 06 PM PST            5.18             27         0              Normal
  11/06/2026 07 PM PST            5.18             27         0              Normal
  11/06/2026 08 PM PST            5.18             27         0              Normal
  11/06/2026 09 PM PST            5.18             27         0              Normal
  11/06/2026 10 PM PST            5.18             27         0              Normal
  11/06/2026 11 PM PST            5.18             27         0              Normal
  11/07/2026 12 AM PST            5.18             27         0              Normal
  11/07/2026 01 AM PST            5.18             27         0              Normal
  11/07/2026 02 AM PST            5.18             27         0              Normal
  11/07/2026 03 AM PST            5.18             27         0              Normal
  11/07/2026 04 AM PST            5.18             27         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.