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: Dec 26 2025 at 2:25 PM PSTNext Issuance: Dec 27 2025 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:  12/26/2025 at 02:26 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/25/2025 at 08:00 AM PST
# Maximum Observed Stage:                       13.13 Feet
# Maximum Observed Flow:                        3354 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/26/2025 at 10:00 PM PST
# Maximum Forecast Stage:                       7.32 Feet
# Maximum Forecast Flow:                        354 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/21/2025 02 PM PST            5.24             34                        Normal
  12/21/2025 03 PM PST            5.23             33         -              Normal
  12/21/2025 04 PM PST            5.24             34         +              Normal
  12/21/2025 05 PM PST            5.23             33         -              Normal
  12/21/2025 06 PM PST            5.23             33         0              Normal
  12/21/2025 07 PM PST            5.23             33         0              Normal
  12/21/2025 08 PM PST            5.23             33         0              Normal
  12/21/2025 09 PM PST            5.24             34         +              Normal
  12/21/2025 10 PM PST            5.24             34         0              Normal
  12/21/2025 11 PM PST            5.23             33         -              Normal
  12/22/2025 12 AM PST            5.23             33         0              Normal
  12/22/2025 01 AM PST            5.24             34         +              Normal
  12/22/2025 02 AM PST            5.24             34         0              Normal
  12/22/2025 03 AM PST            5.24             34         0              Normal
  12/22/2025 04 AM PST            5.24             34         0              Normal
  12/22/2025 05 AM PST            5.24             34         0              Normal
  12/22/2025 06 AM PST            5.23             33         -              Normal
  12/22/2025 07 AM PST            5.23             33         0              Normal
  12/22/2025 08 AM PST            5.23             33         0              Normal
  12/22/2025 09 AM PST            5.23             33         0              Normal
  12/22/2025 10 AM PST            5.23             33         0              Normal
  12/22/2025 11 AM PST            5.23             33         0              Normal
  12/22/2025 12 PM PST            5.24             34         +              Normal
  12/22/2025 01 PM PST            5.25             34         +              Normal
  12/22/2025 02 PM PST            5.27             36         +              Normal
  12/22/2025 03 PM PST            5.26             35         -              Normal
  12/22/2025 04 PM PST            5.26             35         0              Normal
  12/22/2025 05 PM PST            5.26             35         0              Normal
  12/22/2025 06 PM PST            5.26             35         0              Normal
  12/22/2025 07 PM PST            5.26             35         0              Normal
  12/22/2025 08 PM PST            5.25             34         -              Normal
  12/22/2025 09 PM PST            5.25             34         0              Normal
  12/22/2025 10 PM PST            5.25             34         0              Normal
  12/22/2025 11 PM PST            5.25             34         0              Normal
  12/23/2025 12 AM PST            5.25             34         0              Normal
  12/23/2025 01 AM PST            5.25             34         0              Normal
  12/23/2025 02 AM PST            5.24             34         -              Normal
  12/23/2025 03 AM PST            5.24             34         0              Normal
  12/23/2025 04 AM PST            5.24             34         0              Normal
  12/23/2025 05 AM PST            5.24             34         0              Normal
  12/23/2025 06 AM PST            5.24             34         0              Normal
  12/23/2025 07 AM PST            5.24             34         0              Normal
  12/23/2025 08 AM PST            5.24             34         0              Normal
  12/23/2025 09 AM PST            5.24             34         0              Normal
  12/23/2025 10 AM PST            5.24             34         0              Normal
  12/23/2025 11 AM PST            5.24             34         0              Normal
  12/23/2025 12 PM PST            5.24             34         0              Normal
  12/23/2025 01 PM PST            5.24             34         0              Normal
  12/23/2025 02 PM PST            5.23             33         -              Normal
  12/23/2025 03 PM PST            5.24             34         +              Normal
  12/23/2025 04 PM PST            5.24             34         0              Normal
  12/23/2025 05 PM PST            5.24             34         0              Normal
  12/23/2025 06 PM PST            5.24             34         0              Normal
  12/23/2025 07 PM PST            5.23             33         -              Normal
  12/23/2025 08 PM PST            5.24             34         +              Normal
  12/23/2025 09 PM PST            5.24             34         0              Normal
  12/23/2025 10 PM PST            5.24             34         0              Normal
  12/23/2025 11 PM PST            5.24             34         0              Normal
  12/24/2025 12 AM PST            5.24             34         0              Normal
  12/24/2025 01 AM PST            5.25             34         +              Normal
  12/24/2025 02 AM PST            5.25             34         0              Normal
  12/24/2025 03 AM PST            5.35             42         +              Normal
  12/24/2025 04 AM PST            6.10            126         +              Normal
  12/24/2025 05 AM PST            6.85            252         +              Normal
  12/24/2025 06 AM PST            7.64            434         +              Normal
  12/24/2025 07 AM PST            8.35            640         +              Normal
  12/24/2025 08 AM PST            8.79            789         +              Normal
  12/24/2025 09 AM PST            8.53            699         -              Normal
  12/24/2025 10 AM PST            8.12            569         -              Normal
  12/24/2025 11 AM PST            7.60            424         -              Normal
  12/24/2025 12 PM PST            7.18            322         -              Normal
  12/24/2025 01 PM PST            6.85            252         -              Normal
  12/24/2025 02 PM PST            6.55            196         -              Normal
  12/24/2025 03 PM PST            6.32            159         -              Normal
  12/24/2025 04 PM PST            6.12            129         -              Normal
  12/24/2025 05 PM PST            5.96            108         -              Normal
  12/24/2025 06 PM PST            5.84             93         -              Normal
  12/24/2025 07 PM PST            6.17            136         +              Normal
  12/24/2025 08 PM PST            6.31            157         +              Normal
  12/24/2025 09 PM PST            6.10            126         -              Normal
  12/24/2025 10 PM PST            6.02            116         -              Normal
  12/24/2025 11 PM PST            6.01            114         -              Normal
  12/25/2025 12 AM PST            6.03            117         +              Normal
  12/25/2025 01 AM PST            6.04            118         +              Normal
  12/25/2025 02 AM PST            5.98            110         -              Normal
  12/25/2025 03 AM PST            6.20            141         +              Normal
  12/25/2025 04 AM PST            7.49            396         +              Normal
  12/25/2025 05 AM PST            9.37           1009         +              Normal
  12/25/2025 06 AM PST           10.86           1731         +              Normal
  12/25/2025 07 AM PST           12.44           2803         +              Normal
  12/25/2025 08 AM PST           13.13           3354         +              Normal
  12/25/2025 09 AM PST           12.85           3124         -              Normal
  12/25/2025 10 AM PST           11.98           2463         -              Normal
  12/25/2025 11 AM PST           10.81           1701         -              Normal
  12/25/2025 12 PM PST            9.84           1209         -              Normal
  12/25/2025 01 PM PST            9.15            922         -              Normal
  12/25/2025 02 PM PST            8.57            713         -              Normal
  12/25/2025 03 PM PST            8.06            551         -              Normal
  12/25/2025 04 PM PST            7.68            445         -              Normal
  12/25/2025 05 PM PST            7.38            369         -              Normal
  12/25/2025 06 PM PST            7.15            316         -              Normal
  12/25/2025 07 PM PST            7.03            289         -              Normal
  12/25/2025 08 PM PST            7.11            307         +              Normal
  12/25/2025 09 PM PST            7.27            343         +              Normal
  12/25/2025 10 PM PST            7.73            458         +              Normal
  12/25/2025 11 PM PST            8.39            653         +              Normal
  12/26/2025 12 AM PST            8.62            730         +              Normal
  12/26/2025 01 AM PST            8.55            706         -              Normal
  12/26/2025 02 AM PST            8.72            764         +              Normal
  12/26/2025 03 AM PST            8.86            814         +              Normal
  12/26/2025 04 AM PST            9.00            865         +              Normal
  12/26/2025 05 AM PST            8.97            854         -              Normal
  12/26/2025 06 AM PST            8.60            723         -              Normal
  12/26/2025 07 AM PST            7.95            519         -              Normal
  12/26/2025 08 AM PST            7.58            418         -              Normal
  12/26/2025 09 AM PST            7.40            374         -              Normal
  12/26/2025 10 AM PST            7.28            345         -              Normal
  12/26/2025 11 AM PST            7.20            327         -              Normal
  12/26/2025 12 PM PST            7.10            305         -              Normal
  12/26/2025 01 PM PST            7.00            283         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/26/2025 02 PM PST            6.87            256                        Normal
  12/26/2025 03 PM PST            6.75            233         -              Normal
  12/26/2025 04 PM PST            6.69            221         -              Normal
  12/26/2025 05 PM PST            6.74            231         +              Normal
  12/26/2025 06 PM PST            6.86            254         +              Normal
  12/26/2025 07 PM PST            6.99            281         +              Normal
  12/26/2025 08 PM PST            7.14            313         +              Normal
  12/26/2025 09 PM PST            7.26            340         +              Normal
  12/26/2025 10 PM PST            7.32            354         +              Normal
  12/26/2025 11 PM PST            7.30            350         -              Normal
  12/27/2025 12 AM PST            7.24            336         -              Normal
  12/27/2025 01 AM PST            7.12            309         -              Normal
  12/27/2025 02 AM PST            7.00            283         -              Normal
  12/27/2025 03 AM PST            6.90            262         -              Normal
  12/27/2025 04 AM PST            6.86            254         -              Normal
  12/27/2025 05 AM PST            6.83            248         -              Normal
  12/27/2025 06 AM PST            6.81            244         -              Normal
  12/27/2025 07 AM PST            6.78            238         -              Normal
  12/27/2025 08 AM PST            6.72            227         -              Normal
  12/27/2025 09 AM PST            6.64            212         -              Normal
  12/27/2025 10 AM PST            6.56            198         -              Normal
  12/27/2025 11 AM PST            6.48            184         -              Normal
  12/27/2025 12 PM PST            6.41            173         -              Normal
  12/27/2025 01 PM PST            6.36            165         -              Normal
  12/27/2025 02 PM PST            6.31            157         -              Normal
  12/27/2025 03 PM PST            6.26            150         -              Normal
  12/27/2025 04 PM PST            6.23            145         -              Normal
  12/27/2025 05 PM PST            6.19            139         -              Normal
  12/27/2025 06 PM PST            6.16            135         -              Normal
  12/27/2025 07 PM PST            6.13            131         -              Normal
  12/27/2025 08 PM PST            6.11            128         -              Normal
  12/27/2025 09 PM PST            6.09            125         -              Normal
  12/27/2025 10 PM PST            6.07            122         -              Normal
  12/27/2025 11 PM PST            6.04            118         -              Normal
  12/28/2025 12 AM PST            6.03            117         -              Normal
  12/28/2025 01 AM PST            6.01            114         -              Normal
  12/28/2025 02 AM PST            5.99            112         -              Normal
  12/28/2025 03 AM PST            5.98            110         -              Normal
  12/28/2025 04 AM PST            5.96            108         -              Normal
  12/28/2025 05 AM PST            5.95            106         -              Normal
  12/28/2025 06 AM PST            5.94            105         -              Normal
  12/28/2025 07 AM PST            5.93            104         -              Normal
  12/28/2025 08 AM PST            5.92            103         -              Normal
  12/28/2025 09 AM PST            5.91            101         -              Normal
  12/28/2025 10 AM PST            5.90            100         -              Normal
  12/28/2025 11 AM PST            5.89             99         -              Normal
  12/28/2025 12 PM PST            5.89             99         0              Normal
  12/28/2025 01 PM PST            5.88             98         -              Normal
  12/28/2025 02 PM PST            5.88             98         0              Normal
  12/28/2025 03 PM PST            5.87             96         -              Normal
  12/28/2025 04 PM PST            5.87             96         0              Normal
  12/28/2025 05 PM PST            5.86             95         -              Normal
  12/28/2025 06 PM PST            5.86             95         0              Normal
  12/28/2025 07 PM PST            5.85             94         -              Normal
  12/28/2025 08 PM PST            5.85             94         0              Normal
  12/28/2025 09 PM PST            5.84             93         -              Normal
  12/28/2025 10 PM PST            5.84             93         0              Normal
  12/28/2025 11 PM PST            5.84             93         0              Normal
  12/29/2025 12 AM PST            5.84             93         0              Normal
  12/29/2025 01 AM PST            5.83             91         -              Normal
  12/29/2025 02 AM PST            5.83             91         0              Normal
  12/29/2025 03 AM PST            5.83             91         0              Normal
  12/29/2025 04 AM PST            5.83             91         0              Normal
  12/29/2025 05 AM PST            5.83             91         0              Normal
  12/29/2025 06 AM PST            5.82             90         -              Normal
  12/29/2025 07 AM PST            5.82             90         0              Normal
  12/29/2025 08 AM PST            5.82             90         0              Normal
  12/29/2025 09 AM PST            5.82             90         0              Normal
  12/29/2025 10 AM PST            5.82             90         0              Normal
  12/29/2025 11 AM PST            5.82             90         0              Normal
  12/29/2025 12 PM PST            5.82             90         0              Normal
  12/29/2025 01 PM PST            5.82             90         0              Normal
  12/29/2025 02 PM PST            5.82             90         0              Normal
  12/29/2025 03 PM PST            5.81             89         -              Normal
  12/29/2025 04 PM PST            5.81             89         0              Normal
  12/29/2025 05 PM PST            5.81             89         0              Normal
  12/29/2025 06 PM PST            5.81             89         0              Normal
  12/29/2025 07 PM PST            5.81             89         0              Normal
  12/29/2025 08 PM PST            5.81             89         0              Normal
  12/29/2025 09 PM PST            5.81             89         0              Normal
  12/29/2025 10 PM PST            5.81             89         0              Normal
  12/29/2025 11 PM PST            5.81             89         0              Normal
  12/30/2025 12 AM PST            5.81             89         0              Normal
  12/30/2025 01 AM PST            5.81             89         0              Normal
  12/30/2025 02 AM PST            5.81             89         0              Normal
  12/30/2025 03 AM PST            5.81             89         0              Normal
  12/30/2025 04 AM PST            5.80             88         -              Normal
  12/30/2025 05 AM PST            5.80             88         0              Normal
  12/30/2025 06 AM PST            5.80             88         0              Normal
  12/30/2025 07 AM PST            5.80             88         0              Normal
  12/30/2025 08 AM PST            5.80             88         0              Normal
  12/30/2025 09 AM PST            5.80             88         0              Normal
  12/30/2025 10 AM PST            5.80             88         0              Normal
  12/30/2025 11 AM PST            5.80             88         0              Normal
  12/30/2025 12 PM PST            5.80             88         0              Normal
  12/30/2025 01 PM PST            5.80             88         0              Normal
  12/30/2025 02 PM PST            5.80             88         0              Normal
  12/30/2025 03 PM PST            5.80             88         0              Normal
  12/30/2025 04 PM PST            5.80             88         0              Normal
  12/30/2025 05 PM PST            5.80             88         0              Normal
  12/30/2025 06 PM PST            5.80             88         0              Normal
  12/30/2025 07 PM PST            5.80             88         0              Normal
  12/30/2025 08 PM PST            5.80             88         0              Normal
  12/30/2025 09 PM PST            5.80             88         0              Normal
  12/30/2025 10 PM PST            5.80             88         0              Normal
  12/30/2025 11 PM PST            5.80             88         0              Normal
  12/31/2025 12 AM PST            5.80             88         0              Normal
  12/31/2025 01 AM PST            5.80             88         0              Normal
  12/31/2025 02 AM PST            5.80             88         0              Normal
  12/31/2025 03 AM PST            5.80             88         0              Normal
  12/31/2025 04 AM PST            5.80             88         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.