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: Jan 25 2026 at 7:25 AM PSTNext Issuance: Jan 26 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:  01/25/2026 at 07:27 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/24/2026 at 02:00 AM PST
# Maximum Observed Stage:                       5.50 Feet
# Maximum Observed Flow:                        57 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/25/2026 at 08:00 AM PST
# Maximum Forecast Stage:                       5.48 Feet
# Maximum Forecast Flow:                        55 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/20/2026 07 AM PST            5.47             54                        Normal
  01/20/2026 08 AM PST            5.48             55         +              Normal
  01/20/2026 09 AM PST            5.47             54         -              Normal
  01/20/2026 10 AM PST            5.48             55         +              Normal
  01/20/2026 11 AM PST            5.48             55         0              Normal
  01/20/2026 12 PM PST            5.48             55         0              Normal
  01/20/2026 01 PM PST            5.49             56         +              Normal
  01/20/2026 02 PM PST            5.49             56         0              Normal
  01/20/2026 03 PM PST            5.49             56         0              Normal
  01/20/2026 04 PM PST            5.49             56         0              Normal
  01/20/2026 05 PM PST            5.49             56         0              Normal
  01/20/2026 06 PM PST            5.50             57         +              Normal
  01/20/2026 07 PM PST            5.49             56         -              Normal
  01/20/2026 08 PM PST            5.48             55         -              Normal
  01/20/2026 09 PM PST            5.47             54         -              Normal
  01/20/2026 10 PM PST            5.48             55         +              Normal
  01/20/2026 11 PM PST            5.48             55         0              Normal
  01/21/2026 12 AM PST            5.48             55         0              Normal
  01/21/2026 01 AM PST            5.48             55         0              Normal
  01/21/2026 02 AM PST            5.49             56         +              Normal
  01/21/2026 03 AM PST            5.49             56         0              Normal
  01/21/2026 04 AM PST            5.48             55         -              Normal
  01/21/2026 05 AM PST            5.48             55         0              Normal
  01/21/2026 06 AM PST            5.48             55         0              Normal
  01/21/2026 07 AM PST            5.48             55         0              Normal
  01/21/2026 08 AM PST            5.50             57         +              Normal
  01/21/2026 09 AM PST            5.49             56         -              Normal
  01/21/2026 10 AM PST            5.48             55         -              Normal
  01/21/2026 11 AM PST            5.48             55         0              Normal
  01/21/2026 12 PM PST            5.48             55         0              Normal
  01/21/2026 01 PM PST            5.48             55         0              Normal
  01/21/2026 02 PM PST            5.48             55         0              Normal
  01/21/2026 03 PM PST            5.48             55         0              Normal
  01/21/2026 04 PM PST            5.48             55         0              Normal
  01/21/2026 05 PM PST            5.49             56         +              Normal
  01/21/2026 06 PM PST            5.48             55         -              Normal
  01/21/2026 07 PM PST            5.48             55         0              Normal
  01/21/2026 08 PM PST            5.48             55         0              Normal
  01/21/2026 09 PM PST            5.48             55         0              Normal
  01/21/2026 10 PM PST            5.48             55         0              Normal
  01/21/2026 11 PM PST            5.48             55         0              Normal
  01/22/2026 12 AM PST            5.48             55         0              Normal
  01/22/2026 01 AM PST            5.49             56         +              Normal
  01/22/2026 02 AM PST            5.50             57         +              Normal
  01/22/2026 03 AM PST            5.49             56         -              Normal
  01/22/2026 04 AM PST            5.48             55         -              Normal
  01/22/2026 05 AM PST            5.48             55         0              Normal
  01/22/2026 06 AM PST            5.48             55         0              Normal
  01/22/2026 07 AM PST            5.48             55         0              Normal
  01/22/2026 08 AM PST            5.48             55         0              Normal
  01/22/2026 09 AM PST            5.48             55         0              Normal
  01/22/2026 10 AM PST            5.48             55         0              Normal
  01/22/2026 11 AM PST            5.48             55         0              Normal
  01/22/2026 12 PM PST            5.48             55         0              Normal
  01/22/2026 01 PM PST            5.48             55         0              Normal
  01/22/2026 02 PM PST            5.49             56         +              Normal
  01/22/2026 03 PM PST            5.49             56         0              Normal
  01/22/2026 04 PM PST            5.50             57         +              Normal
  01/22/2026 05 PM PST            5.50             57         0              Normal
  01/22/2026 06 PM PST            5.49             56         -              Normal
  01/22/2026 07 PM PST            5.48             55         -              Normal
  01/22/2026 08 PM PST            5.48             55         0              Normal
  01/22/2026 09 PM PST            5.48             55         0              Normal
  01/22/2026 10 PM PST            5.47             54         -              Normal
  01/22/2026 11 PM PST            5.47             54         0              Normal
  01/23/2026 12 AM PST            5.47             54         0              Normal
  01/23/2026 01 AM PST            5.47             54         0              Normal
  01/23/2026 02 AM PST            5.50             57         +              Normal
  01/23/2026 03 AM PST            5.49             56         -              Normal
  01/23/2026 04 AM PST            5.48             55         -              Normal
  01/23/2026 05 AM PST            5.48             55         0              Normal
  01/23/2026 06 AM PST            5.48             55         0              Normal
  01/23/2026 07 AM PST            5.50             57         +              Normal
  01/23/2026 08 AM PST            5.49             56         -              Normal
  01/23/2026 09 AM PST            5.48             55         -              Normal
  01/23/2026 10 AM PST            5.48             55         0              Normal
  01/23/2026 11 AM PST            5.48             55         0              Normal
  01/23/2026 12 PM PST            5.48             55         0              Normal
  01/23/2026 01 PM PST            5.48             55         0              Normal
  01/23/2026 02 PM PST            5.48             55         0              Normal
  01/23/2026 03 PM PST            5.48             55         0              Normal
  01/23/2026 04 PM PST            5.48             55         0              Normal
  01/23/2026 05 PM PST            5.48             55         0              Normal
  01/23/2026 06 PM PST            5.48             55         0              Normal
  01/23/2026 07 PM PST            5.48             55         0              Normal
  01/23/2026 08 PM PST            5.48             55         0              Normal
  01/23/2026 09 PM PST            5.48             55         0              Normal
  01/23/2026 10 PM PST            5.48             55         0              Normal
  01/23/2026 11 PM PST            5.48             55         0              Normal
  01/24/2026 12 AM PST            5.49             56         +              Normal
  01/24/2026 01 AM PST            5.49             56         0              Normal
  01/24/2026 02 AM PST            5.50             57         +              Normal
  01/24/2026 03 AM PST            5.49             56         -              Normal
  01/24/2026 04 AM PST            5.49             56         0              Normal
  01/24/2026 05 AM PST            5.49             56         0              Normal
  01/24/2026 06 AM PST            5.49             56         0              Normal
  01/24/2026 07 AM PST            5.48             55         -              Normal
  01/24/2026 08 AM PST            5.48             55         0              Normal
  01/24/2026 09 AM PST            5.48             55         0              Normal
  01/24/2026 10 AM PST            5.48             55         0              Normal
  01/24/2026 11 AM PST            5.48             55         0              Normal
  01/24/2026 12 PM PST            5.48             55         0              Normal
  01/24/2026 01 PM PST            5.48             55         0              Normal
  01/24/2026 02 PM PST            5.48             55         0              Normal
  01/24/2026 03 PM PST            5.48             55         0              Normal
  01/24/2026 04 PM PST            5.48             55         0              Normal
  01/24/2026 05 PM PST            5.47             54         -              Normal
  01/24/2026 06 PM PST            5.48             55         +              Normal
  01/24/2026 07 PM PST            5.47             54         -              Normal
  01/24/2026 08 PM PST            5.47             54         0              Normal
  01/24/2026 09 PM PST            5.47             54         0              Normal
  01/24/2026 10 PM PST            5.47             54         0              Normal
  01/24/2026 11 PM PST            5.47             54         0              Normal
  01/25/2026 12 AM PST            5.46             53         -              Normal
  01/25/2026 01 AM PST            5.46             53         0              Normal
  01/25/2026 02 AM PST            5.46             53         0              Normal
  01/25/2026 03 AM PST            5.46             53         0              Normal
  01/25/2026 04 AM PST            5.46             53         0              Normal
  01/25/2026 05 AM PST            5.46             53         0              Normal
  01/25/2026 06 AM PST            5.48             55         +              Normal
  01/25/2026 07 AM PST            5.48             55         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/25/2026 08 AM PST            5.48             55                        Normal
  01/25/2026 09 AM PST            5.48             55         0              Normal
  01/25/2026 10 AM PST            5.48             55         0              Normal
  01/25/2026 11 AM PST            5.47             54         -              Normal
  01/25/2026 12 PM PST            5.47             54         0              Normal
  01/25/2026 01 PM PST            5.47             54         0              Normal
  01/25/2026 02 PM PST            5.47             54         0              Normal
  01/25/2026 03 PM PST            5.47             54         0              Normal
  01/25/2026 04 PM PST            5.47             54         0              Normal
  01/25/2026 05 PM PST            5.47             54         0              Normal
  01/25/2026 06 PM PST            5.47             54         0              Normal
  01/25/2026 07 PM PST            5.47             54         0              Normal
  01/25/2026 08 PM PST            5.47             54         0              Normal
  01/25/2026 09 PM PST            5.47             54         0              Normal
  01/25/2026 10 PM PST            5.47             54         0              Normal
  01/25/2026 11 PM PST            5.47             54         0              Normal
  01/26/2026 12 AM PST            5.47             54         0              Normal
  01/26/2026 01 AM PST            5.47             54         0              Normal
  01/26/2026 02 AM PST            5.47             54         0              Normal
  01/26/2026 03 AM PST            5.47             54         0              Normal
  01/26/2026 04 AM PST            5.46             53         -              Normal
  01/26/2026 05 AM PST            5.46             53         0              Normal
  01/26/2026 06 AM PST            5.46             53         0              Normal
  01/26/2026 07 AM PST            5.46             53         0              Normal
  01/26/2026 08 AM PST            5.46             53         0              Normal
  01/26/2026 09 AM PST            5.46             53         0              Normal
  01/26/2026 10 AM PST            5.46             53         0              Normal
  01/26/2026 11 AM PST            5.46             53         0              Normal
  01/26/2026 12 PM PST            5.46             53         0              Normal
  01/26/2026 01 PM PST            5.46             53         0              Normal
  01/26/2026 02 PM PST            5.46             53         0              Normal
  01/26/2026 03 PM PST            5.46             53         0              Normal
  01/26/2026 04 PM PST            5.46             53         0              Normal
  01/26/2026 05 PM PST            5.46             53         0              Normal
  01/26/2026 06 PM PST            5.46             53         0              Normal
  01/26/2026 07 PM PST            5.46             53         0              Normal
  01/26/2026 08 PM PST            5.46             53         0              Normal
  01/26/2026 09 PM PST            5.46             53         0              Normal
  01/26/2026 10 PM PST            5.46             53         0              Normal
  01/26/2026 11 PM PST            5.46             53         0              Normal
  01/27/2026 12 AM PST            5.46             53         0              Normal
  01/27/2026 01 AM PST            5.46             53         0              Normal
  01/27/2026 02 AM PST            5.46             53         0              Normal
  01/27/2026 03 AM PST            5.46             53         0              Normal
  01/27/2026 04 AM PST            5.46             53         0              Normal
  01/27/2026 05 AM PST            5.45             52         -              Normal
  01/27/2026 06 AM PST            5.45             52         0              Normal
  01/27/2026 07 AM PST            5.45             52         0              Normal
  01/27/2026 08 AM PST            5.45             52         0              Normal
  01/27/2026 09 AM PST            5.45             52         0              Normal
  01/27/2026 10 AM PST            5.45             52         0              Normal
  01/27/2026 11 AM PST            5.45             52         0              Normal
  01/27/2026 12 PM PST            5.45             52         0              Normal
  01/27/2026 01 PM PST            5.45             52         0              Normal
  01/27/2026 02 PM PST            5.45             52         0              Normal
  01/27/2026 03 PM PST            5.45             52         0              Normal
  01/27/2026 04 PM PST            5.45             52         0              Normal
  01/27/2026 05 PM PST            5.45             52         0              Normal
  01/27/2026 06 PM PST            5.45             52         0              Normal
  01/27/2026 07 PM PST            5.45             52         0              Normal
  01/27/2026 08 PM PST            5.45             52         0              Normal
  01/27/2026 09 PM PST            5.45             52         0              Normal
  01/27/2026 10 PM PST            5.45             52         0              Normal
  01/27/2026 11 PM PST            5.45             52         0              Normal
  01/28/2026 12 AM PST            5.45             52         0              Normal
  01/28/2026 01 AM PST            5.45             52         0              Normal
  01/28/2026 02 AM PST            5.45             52         0              Normal
  01/28/2026 03 AM PST            5.44             51         -              Normal
  01/28/2026 04 AM PST            5.44             51         0              Normal
  01/28/2026 05 AM PST            5.44             51         0              Normal
  01/28/2026 06 AM PST            5.44             51         0              Normal
  01/28/2026 07 AM PST            5.44             51         0              Normal
  01/28/2026 08 AM PST            5.44             51         0              Normal
  01/28/2026 09 AM PST            5.44             51         0              Normal
  01/28/2026 10 AM PST            5.44             51         0              Normal
  01/28/2026 11 AM PST            5.44             51         0              Normal
  01/28/2026 12 PM PST            5.44             51         0              Normal
  01/28/2026 01 PM PST            5.44             51         0              Normal
  01/28/2026 02 PM PST            5.44             51         0              Normal
  01/28/2026 03 PM PST            5.44             51         0              Normal
  01/28/2026 04 PM PST            5.44             51         0              Normal
  01/28/2026 05 PM PST            5.44             51         0              Normal
  01/28/2026 06 PM PST            5.44             51         0              Normal
  01/28/2026 07 PM PST            5.44             51         0              Normal
  01/28/2026 08 PM PST            5.44             51         0              Normal
  01/28/2026 09 PM PST            5.44             51         0              Normal
  01/28/2026 10 PM PST            5.44             51         0              Normal
  01/28/2026 11 PM PST            5.44             51         0              Normal
  01/29/2026 12 AM PST            5.43             50         -              Normal
  01/29/2026 01 AM PST            5.43             50         0              Normal
  01/29/2026 02 AM PST            5.43             50         0              Normal
  01/29/2026 03 AM PST            5.43             50         0              Normal
  01/29/2026 04 AM PST            5.43             50         0              Normal
  01/29/2026 05 AM PST            5.43             50         0              Normal
  01/29/2026 06 AM PST            5.43             50         0              Normal
  01/29/2026 07 AM PST            5.43             50         0              Normal
  01/29/2026 08 AM PST            5.43             50         0              Normal
  01/29/2026 09 AM PST            5.43             50         0              Normal
  01/29/2026 10 AM PST            5.43             50         0              Normal
  01/29/2026 11 AM PST            5.43             50         0              Normal
  01/29/2026 12 PM PST            5.43             50         0              Normal
  01/29/2026 01 PM PST            5.43             50         0              Normal
  01/29/2026 02 PM PST            5.43             50         0              Normal
  01/29/2026 03 PM PST            5.43             50         0              Normal
  01/29/2026 04 PM PST            5.43             50         0              Normal
  01/29/2026 05 PM PST            5.43             50         0              Normal
  01/29/2026 06 PM PST            5.43             50         0              Normal
  01/29/2026 07 PM PST            5.43             50         0              Normal
  01/29/2026 08 PM PST            5.43             50         0              Normal
  01/29/2026 09 PM PST            5.43             50         0              Normal
  01/29/2026 10 PM PST            5.43             50         0              Normal
  01/29/2026 11 PM PST            5.43             50         0              Normal
  01/30/2026 12 AM PST            5.42             49         -              Normal
  01/30/2026 01 AM PST            5.42             49         0              Normal
  01/30/2026 02 AM PST            5.42             49         0              Normal
  01/30/2026 03 AM PST            5.42             49         0              Normal
  01/30/2026 04 AM PST            5.42             49         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.