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 24 2026 at 7:53 AM PSTNext Issuance: Feb 24 2026 at 3:00 PM 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:  02/24/2026 at 07:55 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/19/2026 at 07:00 AM PST
# Maximum Observed Stage:                       10.18 Feet
# Maximum Observed Flow:                        1553 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/25/2026 at 12:00 AM PST
# Maximum Forecast Stage:                       6.78 Feet
# Maximum Forecast Flow:                        252 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/19/2026 07 AM PST           10.18           1553                        Normal
  02/19/2026 08 AM PST           10.13           1527         -              Normal
  02/19/2026 09 AM PST            9.83           1374         -              Normal
  02/19/2026 10 AM PST            9.62           1272         -              Normal
  02/19/2026 11 AM PST            9.61           1267         -              Normal
  02/19/2026 12 PM PST            9.63           1277         +              Normal
  02/19/2026 01 PM PST            9.56           1243         -              Normal
  02/19/2026 02 PM PST            9.60           1262         +              Normal
  02/19/2026 03 PM PST            9.48           1204         -              Normal
  02/19/2026 04 PM PST            9.26           1099         -              Normal
  02/19/2026 05 PM PST            9.06           1008         -              Normal
  02/19/2026 06 PM PST            8.89            933         -              Normal
  02/19/2026 07 PM PST            8.73            866         -              Normal
  02/19/2026 08 PM PST            8.59            810         -              Normal
  02/19/2026 09 PM PST            8.48            766         -              Normal
  02/19/2026 10 PM PST            8.38            728         -              Normal
  02/19/2026 11 PM PST            8.30            698         -              Normal
  02/20/2026 12 AM PST            8.24            676         -              Normal
  02/20/2026 01 AM PST            8.20            662         -              Normal
  02/20/2026 02 AM PST            8.13            637         -              Normal
  02/20/2026 03 AM PST            8.10            627         -              Normal
  02/20/2026 04 AM PST            8.07            616         -              Normal
  02/20/2026 05 AM PST            8.03            603         -              Normal
  02/20/2026 06 AM PST            7.98            586         -              Normal
  02/20/2026 07 AM PST            7.92            566         -              Normal
  02/20/2026 08 AM PST            7.89            556         -              Normal
  02/20/2026 09 AM PST            7.86            546         -              Normal
  02/20/2026 10 AM PST            7.84            539         -              Normal
  02/20/2026 11 AM PST            7.83            536         -              Normal
  02/20/2026 12 PM PST            7.81            530         -              Normal
  02/20/2026 01 PM PST            7.80            527         -              Normal
  02/20/2026 02 PM PST            7.77            517         -              Normal
  02/20/2026 03 PM PST            7.72            501         -              Normal
  02/20/2026 04 PM PST            7.64            477         -              Normal
  02/20/2026 05 PM PST            7.59            462         -              Normal
  02/20/2026 06 PM PST            7.54            447         -              Normal
  02/20/2026 07 PM PST            7.51            438         -              Normal
  02/20/2026 08 PM PST            7.48            430         -              Normal
  02/20/2026 09 PM PST            7.44            418         -              Normal
  02/20/2026 10 PM PST            7.42            413         -              Normal
  02/20/2026 11 PM PST            7.41            410         -              Normal
  02/21/2026 12 AM PST            7.34            390         -              Normal
  02/21/2026 01 AM PST            7.22            358         -              Normal
  02/21/2026 02 AM PST            7.16            343         -              Normal
  02/21/2026 03 AM PST            7.14            338         -              Normal
  02/21/2026 04 AM PST            7.13            335         -              Normal
  02/21/2026 05 AM PST            7.12            333         -              Normal
  02/21/2026 06 AM PST            7.11            330         -              Normal
  02/21/2026 07 AM PST            7.10            328         -              Normal
  02/21/2026 08 AM PST            7.09            325         -              Normal
  02/21/2026 09 AM PST            7.09            325         0              Normal
  02/21/2026 10 AM PST            7.11            330         +              Normal
  02/21/2026 11 AM PST            7.10            328         -              Normal
  02/21/2026 12 PM PST            7.07            320         -              Normal
  02/21/2026 01 PM PST            7.06            318         -              Normal
  02/21/2026 02 PM PST            7.05            315         -              Normal
  02/21/2026 03 PM PST            6.94            289         -              Normal
  02/21/2026 04 PM PST            6.82            261         -              Normal
  02/21/2026 05 PM PST            6.76            248         -              Normal
  02/21/2026 06 PM PST            6.74            244         -              Normal
  02/21/2026 07 PM PST            6.70            235         -              Normal
  02/21/2026 08 PM PST            6.67            229         -              Normal
  02/21/2026 09 PM PST            6.65            225         -              Normal
  02/21/2026 10 PM PST            6.63            221         -              Normal
  02/21/2026 11 PM PST            6.61            216         -              Normal
  02/22/2026 12 AM PST            6.60            214         -              Normal
  02/22/2026 01 AM PST            6.59            212         -              Normal
  02/22/2026 02 AM PST            6.58            210         -              Normal
  02/22/2026 03 AM PST            6.59            212         +              Normal
  02/22/2026 04 AM PST            6.59            212         0              Normal
  02/22/2026 05 AM PST            6.58            210         -              Normal
  02/22/2026 06 AM PST            6.58            210         0              Normal
  02/22/2026 07 AM PST            6.57            208         -              Normal
  02/22/2026 08 AM PST            6.57            208         0              Normal
  02/22/2026 09 AM PST            6.57            208         0              Normal
  02/22/2026 10 AM PST            6.59            212         +              Normal
  02/22/2026 11 AM PST            6.62            219         +              Normal
  02/22/2026 12 PM PST            6.60            214         -              Normal
  02/22/2026 01 PM PST            6.57            208         -              Normal
  02/22/2026 02 PM PST            6.57            208         0              Normal
  02/22/2026 03 PM PST            6.56            206         -              Normal
  02/22/2026 04 PM PST            6.55            204         -              Normal
  02/22/2026 05 PM PST            6.54            202         -              Normal
  02/22/2026 06 PM PST            6.52            199         -              Normal
  02/22/2026 07 PM PST            6.50            195         -              Normal
  02/22/2026 08 PM PST            6.48            191         -              Normal
  02/22/2026 09 PM PST            6.47            189         -              Normal
  02/22/2026 10 PM PST            6.49            193         +              Normal
  02/22/2026 11 PM PST            6.47            189         -              Normal
  02/23/2026 12 AM PST            6.44            184         -              Normal
  02/23/2026 01 AM PST            6.44            184         0              Normal
  02/23/2026 02 AM PST            6.42            180         -              Normal
  02/23/2026 03 AM PST            6.41            178         -              Normal
  02/23/2026 04 AM PST            6.40            177         -              Normal
  02/23/2026 05 AM PST            6.40            177         0              Normal
  02/23/2026 06 AM PST            6.40            177         0              Normal
  02/23/2026 07 AM PST            6.40            177         0              Normal
  02/23/2026 08 AM PST            6.41            178         +              Normal
  02/23/2026 09 AM PST            6.39            175         -              Normal
  02/23/2026 10 AM PST            6.38            173         -              Normal
  02/23/2026 11 AM PST            6.37            171         -              Normal
  02/23/2026 12 PM PST            6.37            171         0              Normal
  02/23/2026 01 PM PST            6.36            169         -              Normal
  02/23/2026 02 PM PST            6.32            163         -              Normal
  02/23/2026 03 PM PST            6.26            152         -              Normal
  02/23/2026 04 PM PST            6.22            146         -              Normal
  02/23/2026 05 PM PST            6.19            141         -              Normal
  02/23/2026 06 PM PST            6.16            137         -              Normal
  02/23/2026 07 PM PST            6.14            134         -              Normal
  02/23/2026 08 PM PST            6.13            132         -              Normal
  02/23/2026 09 PM PST            6.12            131         -              Normal
  02/23/2026 10 PM PST            6.14            134         +              Normal
  02/23/2026 11 PM PST            6.12            131         -              Normal
  02/24/2026 12 AM PST            6.10            128         -              Normal
  02/24/2026 01 AM PST            6.06            122         -              Normal
  02/24/2026 02 AM PST            6.00            114         -              Normal
  02/24/2026 03 AM PST            5.97            110         -              Normal
  02/24/2026 04 AM PST            5.95            108         -              Normal
  02/24/2026 05 AM PST            5.94            107         -              Normal
  02/24/2026 06 AM PST            5.93            105         -              Normal
  02/24/2026 07 AM PST            5.92            104         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/24/2026 08 AM PST            5.92            104                        Normal
  02/24/2026 09 AM PST            5.91            103         -              Normal
  02/24/2026 10 AM PST            5.91            103         0              Normal
  02/24/2026 11 AM PST            5.90            101         -              Normal
  02/24/2026 12 PM PST            5.90            101         0              Normal
  02/24/2026 01 PM PST            5.89            100         -              Normal
  02/24/2026 02 PM PST            5.89            100         0              Normal
  02/24/2026 03 PM PST            5.89            100         0              Normal
  02/24/2026 04 PM PST            5.90            101         +              Normal
  02/24/2026 05 PM PST            5.93            105         +              Normal
  02/24/2026 06 PM PST            6.03            118         +              Normal
  02/24/2026 07 PM PST            6.16            137         +              Normal
  02/24/2026 08 PM PST            6.31            161         +              Normal
  02/24/2026 09 PM PST            6.47            189         +              Normal
  02/24/2026 10 PM PST            6.63            221         +              Normal
  02/24/2026 11 PM PST            6.74            244         +              Normal
  02/25/2026 12 AM PST            6.78            252         +              Normal
  02/25/2026 01 AM PST            6.74            244         -              Normal
  02/25/2026 02 AM PST            6.63            221         -              Normal
  02/25/2026 03 AM PST            6.49            193         -              Normal
  02/25/2026 04 AM PST            6.37            171         -              Normal
  02/25/2026 05 AM PST            6.27            154         -              Normal
  02/25/2026 06 AM PST            6.16            137         -              Normal
  02/25/2026 07 AM PST            6.07            124         -              Normal
  02/25/2026 08 AM PST            5.99            113         -              Normal
  02/25/2026 09 AM PST            5.93            105         -              Normal
  02/25/2026 10 AM PST            5.90            101         -              Normal
  02/25/2026 11 AM PST            5.88             99         -              Normal
  02/25/2026 12 PM PST            5.87             98         -              Normal
  02/25/2026 01 PM PST            5.86             96         -              Normal
  02/25/2026 02 PM PST            5.85             95         -              Normal
  02/25/2026 03 PM PST            5.85             95         0              Normal
  02/25/2026 04 PM PST            5.84             94         -              Normal
  02/25/2026 05 PM PST            5.84             94         0              Normal
  02/25/2026 06 PM PST            5.83             93         -              Normal
  02/25/2026 07 PM PST            5.82             92         -              Normal
  02/25/2026 08 PM PST            5.82             92         0              Normal
  02/25/2026 09 PM PST            5.81             90         -              Normal
  02/25/2026 10 PM PST            5.81             90         0              Normal
  02/25/2026 11 PM PST            5.81             90         0              Normal
  02/26/2026 12 AM PST            5.80             89         -              Normal
  02/26/2026 01 AM PST            5.80             89         0              Normal
  02/26/2026 02 AM PST            5.80             89         0              Normal
  02/26/2026 03 AM PST            5.80             89         0              Normal
  02/26/2026 04 AM PST            5.79             88         -              Normal
  02/26/2026 05 AM PST            5.79             88         0              Normal
  02/26/2026 06 AM PST            5.79             88         0              Normal
  02/26/2026 07 AM PST            5.79             88         0              Normal
  02/26/2026 08 AM PST            5.79             88         0              Normal
  02/26/2026 09 AM PST            5.79             88         0              Normal
  02/26/2026 10 AM PST            5.78             87         -              Normal
  02/26/2026 11 AM PST            5.78             87         0              Normal
  02/26/2026 12 PM PST            5.78             87         0              Normal
  02/26/2026 01 PM PST            5.78             87         0              Normal
  02/26/2026 02 PM PST            5.78             87         0              Normal
  02/26/2026 03 PM PST            5.78             87         0              Normal
  02/26/2026 04 PM PST            5.77             86         -              Normal
  02/26/2026 05 PM PST            5.77             86         0              Normal
  02/26/2026 06 PM PST            5.77             86         0              Normal
  02/26/2026 07 PM PST            5.77             86         0              Normal
  02/26/2026 08 PM PST            5.77             86         0              Normal
  02/26/2026 09 PM PST            5.77             86         0              Normal
  02/26/2026 10 PM PST            5.76             85         -              Normal
  02/26/2026 11 PM PST            5.76             85         0              Normal
  02/27/2026 12 AM PST            5.76             85         0              Normal
  02/27/2026 01 AM PST            5.76             85         0              Normal
  02/27/2026 02 AM PST            5.76             85         0              Normal
  02/27/2026 03 AM PST            5.76             85         0              Normal
  02/27/2026 04 AM PST            5.75             83         -              Normal
  02/27/2026 05 AM PST            5.75             83         0              Normal
  02/27/2026 06 AM PST            5.75             83         0              Normal
  02/27/2026 07 AM PST            5.75             83         0              Normal
  02/27/2026 08 AM PST            5.75             83         0              Normal
  02/27/2026 09 AM PST            5.75             83         0              Normal
  02/27/2026 10 AM PST            5.75             83         0              Normal
  02/27/2026 11 AM PST            5.75             83         0              Normal
  02/27/2026 12 PM PST            5.74             82         -              Normal
  02/27/2026 01 PM PST            5.74             82         0              Normal
  02/27/2026 02 PM PST            5.74             82         0              Normal
  02/27/2026 03 PM PST            5.74             82         0              Normal
  02/27/2026 04 PM PST            5.74             82         0              Normal
  02/27/2026 05 PM PST            5.74             82         0              Normal
  02/27/2026 06 PM PST            5.74             82         0              Normal
  02/27/2026 07 PM PST            5.74             82         0              Normal
  02/27/2026 08 PM PST            5.73             81         -              Normal
  02/27/2026 09 PM PST            5.73             81         0              Normal
  02/27/2026 10 PM PST            5.73             81         0              Normal
  02/27/2026 11 PM PST            5.73             81         0              Normal
  02/28/2026 12 AM PST            5.73             81         0              Normal
  02/28/2026 01 AM PST            5.73             81         0              Normal
  02/28/2026 02 AM PST            5.73             81         0              Normal
  02/28/2026 03 AM PST            5.72             80         -              Normal
  02/28/2026 04 AM PST            5.72             80         0              Normal
  02/28/2026 05 AM PST            5.72             80         0              Normal
  02/28/2026 06 AM PST            5.72             80         0              Normal
  02/28/2026 07 AM PST            5.72             80         0              Normal
  02/28/2026 08 AM PST            5.72             80         0              Normal
  02/28/2026 09 AM PST            5.72             80         0              Normal
  02/28/2026 10 AM PST            5.72             80         0              Normal
  02/28/2026 11 AM PST            5.72             80         0              Normal
  02/28/2026 12 PM PST            5.71             79         -              Normal
  02/28/2026 01 PM PST            5.71             79         0              Normal
  02/28/2026 02 PM PST            5.71             79         0              Normal
  02/28/2026 03 PM PST            5.71             79         0              Normal
  02/28/2026 04 PM PST            5.71             79         0              Normal
  02/28/2026 05 PM PST            5.71             79         0              Normal
  02/28/2026 06 PM PST            5.71             79         0              Normal
  02/28/2026 07 PM PST            5.71             79         0              Normal
  02/28/2026 08 PM PST            5.71             79         0              Normal
  02/28/2026 09 PM PST            5.71             79         0              Normal
  02/28/2026 10 PM PST            5.71             79         0              Normal
  02/28/2026 11 PM PST            5.71             79         0              Normal
  03/01/2026 12 AM PST            5.70             78         -              Normal
  03/01/2026 01 AM PST            5.70             78         0              Normal
  03/01/2026 02 AM PST            5.70             78         0              Normal
  03/01/2026 03 AM PST            5.70             78         0              Normal
  03/01/2026 04 AM PST            5.70             78         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.