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 ALMADEN EXPRESSWAY (GUDC1)
Latitude: 37.28º NLongitude: 121.88º WElevation: 150 FeetForecast Type: Official Location
Location: Santa Clara County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Oct 29 2026 at 7:41 AM PDTNext Issuance: Oct 30 2026 at 9:00 AM PDT
Action: 9.0 FeetMinor Flood: 10.5 FeetModerate Flood: 11.5 FeetMajor Flood: 15.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Guadalupe River - San Jose at Almaden Exprwy (GUDC1)
#
# File Generation Time:  10/29/2026 at 07:41 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/29/2026 at 06:00 AM PDT
# Maximum Observed Stage:                       2.68 Feet
# Maximum Observed Flow:                        3 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/29/2026 at 11:00 AM PDT
# Maximum Forecast Stage:                       2.67 Feet
# Maximum Forecast Flow:                        3 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/24/2026 07 AM PDT            2.66              3                        Normal
  10/24/2026 08 AM PDT            2.66              3         0              Normal
  10/24/2026 09 AM PDT            2.66              3         0              Normal
  10/24/2026 10 AM PDT            2.66              3         0              Normal
  10/24/2026 11 AM PDT            2.66              3         0              Normal
  10/24/2026 12 PM PDT            2.66              3         0              Normal
  10/24/2026 01 PM PDT            2.66              3         0              Normal
  10/24/2026 02 PM PDT            2.65              3         -              Normal
  10/24/2026 03 PM PDT            2.65              3         0              Normal
  10/24/2026 04 PM PDT            2.65              3         0              Normal
  10/24/2026 05 PM PDT            2.64              3         -              Normal
  10/24/2026 06 PM PDT            2.64              3         0              Normal
  10/24/2026 07 PM PDT            2.64              3         0              Normal
  10/24/2026 08 PM PDT            2.64              3         0              Normal
  10/24/2026 09 PM PDT            2.64              3         0              Normal
  10/24/2026 10 PM PDT            2.64              3         0              Normal
  10/24/2026 11 PM PDT            2.64              3         0              Normal
  10/25/2026 12 AM PDT            2.64              3         0              Normal
  10/25/2026 01 AM PDT            2.64              3         0              Normal
  10/25/2026 02 AM PDT            2.64              3         0              Normal
  10/25/2026 03 AM PDT            2.64              3         0              Normal
  10/25/2026 04 AM PDT            2.64              3         0              Normal
  10/25/2026 05 AM PDT            2.64              3         0              Normal
  10/25/2026 06 AM PDT            2.64              3         0              Normal
  10/25/2026 07 AM PDT            2.64              3         0              Normal
  10/25/2026 08 AM PDT            2.65              3         +              Normal
  10/25/2026 09 AM PDT            2.65              3         0              Normal
  10/25/2026 10 AM PDT            2.65              3         0              Normal
  10/25/2026 11 AM PDT            2.65              3         0              Normal
  10/25/2026 12 PM PDT            2.65              3         0              Normal
  10/25/2026 01 PM PDT            2.65              3         0              Normal
  10/25/2026 02 PM PDT            2.65              3         0              Normal
  10/25/2026 03 PM PDT            2.64              3         -              Normal
  10/25/2026 04 PM PDT            2.64              3         0              Normal
  10/25/2026 05 PM PDT            2.64              3         0              Normal
  10/25/2026 06 PM PDT            2.64              3         0              Normal
  10/25/2026 07 PM PDT            2.64              3         0              Normal
  10/25/2026 08 PM PDT            2.64              3         0              Normal
  10/25/2026 09 PM PDT            2.64              3         0              Normal
  10/25/2026 10 PM PDT            2.64              3         0              Normal
  10/25/2026 11 PM PDT            2.64              3         0              Normal
  10/26/2026 12 AM PDT            2.64              3         0              Normal
  10/26/2026 01 AM PDT            2.64              3         0              Normal
  10/26/2026 02 AM PDT            2.64              3         0              Normal
  10/26/2026 03 AM PDT            2.65              3         +              Normal
  10/26/2026 04 AM PDT            2.64              3         -              Normal
  10/26/2026 05 AM PDT            2.64              3         0              Normal
  10/26/2026 06 AM PDT            2.65              3         +              Normal
  10/26/2026 07 AM PDT            2.65              3         0              Normal
  10/26/2026 08 AM PDT            2.65              3         0              Normal
  10/26/2026 09 AM PDT            2.65              3         0              Normal
  10/26/2026 10 AM PDT            2.65              3         0              Normal
  10/26/2026 11 AM PDT            2.65              3         0              Normal
  10/26/2026 12 PM PDT            2.65              3         0              Normal
  10/26/2026 01 PM PDT            2.65              3         0              Normal
  10/26/2026 02 PM PDT            2.65              3         0              Normal
  10/26/2026 03 PM PDT            2.65              3         0              Normal
  10/26/2026 04 PM PDT            2.65              3         0              Normal
  10/26/2026 05 PM PDT            2.64              3         -              Normal
  10/26/2026 06 PM PDT            2.65              3         +              Normal
  10/26/2026 07 PM PDT            2.65              3         0              Normal
  10/26/2026 08 PM PDT            2.65              3         0              Normal
  10/26/2026 09 PM PDT            2.65              3         0              Normal
  10/26/2026 10 PM PDT            2.65              3         0              Normal
  10/26/2026 11 PM PDT            2.65              3         0              Normal
  10/27/2026 12 AM PDT            2.65              3         0              Normal
  10/27/2026 01 AM PDT            2.65              3         0              Normal
  10/27/2026 02 AM PDT            2.65              3         0              Normal
  10/27/2026 03 AM PDT            2.65              3         0              Normal
  10/27/2026 04 AM PDT            2.65              3         0              Normal
  10/27/2026 05 AM PDT            2.65              3         0              Normal
  10/27/2026 06 AM PDT            2.65              3         0              Normal
  10/27/2026 07 AM PDT            2.66              3         +              Normal
  10/27/2026 08 AM PDT            2.66              3         0              Normal
  10/27/2026 09 AM PDT            2.66              3         0              Normal
  10/27/2026 10 AM PDT            2.66              3         0              Normal
  10/27/2026 11 AM PDT            2.66              3         0              Normal
  10/27/2026 12 PM PDT            2.66              3         0              Normal
  10/27/2026 01 PM PDT            2.66              3         0              Normal
  10/27/2026 02 PM PDT            2.66              3         0              Normal
  10/27/2026 03 PM PDT            2.66              3         0              Normal
  10/27/2026 04 PM PDT            2.66              3         0              Normal
  10/27/2026 05 PM PDT            2.66              3         0              Normal
  10/27/2026 06 PM PDT            2.66              3         0              Normal
  10/27/2026 07 PM PDT            2.66              3         0              Normal
  10/27/2026 08 PM PDT            2.66              3         0              Normal
  10/27/2026 09 PM PDT            2.66              3         0              Normal
  10/27/2026 10 PM PDT            2.66              3         0              Normal
  10/27/2026 11 PM PDT            2.66              3         0              Normal
  10/28/2026 12 AM PDT            2.66              3         0              Normal
  10/28/2026 01 AM PDT            2.66              3         0              Normal
  10/28/2026 02 AM PDT            2.66              3         0              Normal
  10/28/2026 03 AM PDT            2.66              3         0              Normal
  10/28/2026 04 AM PDT            2.66              3         0              Normal
  10/28/2026 05 AM PDT            2.67              3         +              Normal
  10/28/2026 06 AM PDT            2.67              3         0              Normal
  10/28/2026 07 AM PDT            2.67              3         0              Normal
  10/28/2026 08 AM PDT            2.67              3         0              Normal
  10/28/2026 09 AM PDT            2.67              3         0              Normal
  10/28/2026 10 AM PDT            2.67              3         0              Normal
  10/28/2026 11 AM PDT            2.67              3         0              Normal
  10/28/2026 12 PM PDT            2.67              3         0              Normal
  10/28/2026 01 PM PDT            2.67              3         0              Normal
  10/28/2026 02 PM PDT            2.67              3         0              Normal
  10/28/2026 03 PM PDT            2.67              3         0              Normal
  10/28/2026 04 PM PDT            2.67              3         0              Normal
  10/28/2026 05 PM PDT            2.67              3         0              Normal
  10/28/2026 06 PM PDT            2.66              3         -              Normal
  10/28/2026 07 PM PDT            2.66              3         0              Normal
  10/28/2026 08 PM PDT            2.67              3         +              Normal
  10/28/2026 09 PM PDT            2.67              3         0              Normal
  10/28/2026 10 PM PDT            2.67              3         0              Normal
  10/28/2026 11 PM PDT            2.67              3         0              Normal
  10/29/2026 12 AM PDT            2.67              3         0              Normal
  10/29/2026 01 AM PDT            2.67              3         0              Normal
  10/29/2026 02 AM PDT            2.68              3         +              Normal
  10/29/2026 03 AM PDT            2.68              3         0              Normal
  10/29/2026 04 AM PDT            2.68              3         0              Normal
  10/29/2026 05 AM PDT            2.68              3         0              Normal
  10/29/2026 06 AM PDT            2.68              3         0              Normal
  10/29/2026 07 AM PDT            2.63              3         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/29/2026 08 AM PDT            2.63              3                        Normal
  10/29/2026 09 AM PDT            2.63              3         0              Normal
  10/29/2026 10 AM PDT            2.63              3         0              Normal
  10/29/2026 11 AM PDT            2.67              3         +              Normal
  10/29/2026 12 PM PDT            2.67              3         0              Normal
  10/29/2026 01 PM PDT            2.67              3         0              Normal
  10/29/2026 02 PM PDT            2.67              3         0              Normal
  10/29/2026 03 PM PDT            2.67              3         0              Normal
  10/29/2026 04 PM PDT            2.67              3         0              Normal
  10/29/2026 05 PM PDT            2.67              3         0              Normal
  10/29/2026 06 PM PDT            2.67              3         0              Normal
  10/29/2026 07 PM PDT            2.67              3         0              Normal
  10/29/2026 08 PM PDT            2.67              3         0              Normal
  10/29/2026 09 PM PDT            2.67              3         0              Normal
  10/29/2026 10 PM PDT            2.67              3         0              Normal
  10/29/2026 11 PM PDT            2.67              3         0              Normal
  10/30/2026 12 AM PDT            2.67              3         0              Normal
  10/30/2026 01 AM PDT            2.67              3         0              Normal
  10/30/2026 02 AM PDT            2.67              3         0              Normal
  10/30/2026 03 AM PDT            2.67              3         0              Normal
  10/30/2026 04 AM PDT            2.67              3         0              Normal
  10/30/2026 05 AM PDT            2.67              3         0              Normal
  10/30/2026 06 AM PDT            2.67              3         0              Normal
  10/30/2026 07 AM PDT            2.67              3         0              Normal
  10/30/2026 08 AM PDT            2.67              3         0              Normal
  10/30/2026 09 AM PDT            2.67              3         0              Normal
  10/30/2026 10 AM PDT            2.67              3         0              Normal
  10/30/2026 11 AM PDT            2.67              3         0              Normal
  10/30/2026 12 PM PDT            2.67              3         0              Normal
  10/30/2026 01 PM PDT            2.67              3         0              Normal
  10/30/2026 02 PM PDT            2.66              3         -              Normal
  10/30/2026 03 PM PDT            2.66              3         0              Normal
  10/30/2026 04 PM PDT            2.66              3         0              Normal
  10/30/2026 05 PM PDT            2.66              3         0              Normal
  10/30/2026 06 PM PDT            2.66              3         0              Normal
  10/30/2026 07 PM PDT            2.66              3         0              Normal
  10/30/2026 08 PM PDT            2.66              3         0              Normal
  10/30/2026 09 PM PDT            2.66              3         0              Normal
  10/30/2026 10 PM PDT            2.66              3         0              Normal
  10/30/2026 11 PM PDT            2.66              3         0              Normal
  10/31/2026 12 AM PDT            2.66              3         0              Normal
  10/31/2026 01 AM PDT            2.66              3         0              Normal
  10/31/2026 02 AM PDT            2.66              3         0              Normal
  10/31/2026 03 AM PDT            2.66              3         0              Normal
  10/31/2026 04 AM PDT            2.66              3         0              Normal
  10/31/2026 05 AM PDT            2.66              3         0              Normal
  10/31/2026 06 AM PDT            2.66              3         0              Normal
  10/31/2026 07 AM PDT            2.66              3         0              Normal
  10/31/2026 08 AM PDT            2.66              3         0              Normal
  10/31/2026 09 AM PDT            2.66              3         0              Normal
  10/31/2026 10 AM PDT            2.66              3         0              Normal
  10/31/2026 11 AM PDT            2.66              3         0              Normal
  10/31/2026 12 PM PDT            2.66              3         0              Normal
  10/31/2026 01 PM PDT            2.66              3         0              Normal
  10/31/2026 02 PM PDT            2.66              3         0              Normal
  10/31/2026 03 PM PDT            2.66              3         0              Normal
  10/31/2026 04 PM PDT            2.66              3         0              Normal
  10/31/2026 05 PM PDT            2.66              3         0              Normal
  10/31/2026 06 PM PDT            2.66              3         0              Normal
  10/31/2026 07 PM PDT            2.66              3         0              Normal
  10/31/2026 08 PM PDT            2.66              3         0              Normal
  10/31/2026 09 PM PDT            2.66              3         0              Normal
  10/31/2026 10 PM PDT            2.66              3         0              Normal
  10/31/2026 11 PM PDT            2.66              3         0              Normal
  11/01/2026 12 AM PDT            2.66              3         0              Normal
  11/01/2026 01 AM PDT            2.66              3         0              Normal
  11/01/2026 01 AM PST            2.66              3         0              Normal
  11/01/2026 02 AM PST            2.66              3         0              Normal
  11/01/2026 03 AM PST            2.66              3         0              Normal
  11/01/2026 04 AM PST            2.66              3         0              Normal
  11/01/2026 05 AM PST            2.66              3         0              Normal
  11/01/2026 06 AM PST            2.66              3         0              Normal
  11/01/2026 07 AM PST            2.66              3         0              Normal
  11/01/2026 08 AM PST            2.66              3         0              Normal
  11/01/2026 09 AM PST            2.66              3         0              Normal
  11/01/2026 10 AM PST            2.66              3         0              Normal
  11/01/2026 11 AM PST            2.66              3         0              Normal
  11/01/2026 12 PM PST            2.66              3         0              Normal
  11/01/2026 01 PM PST            2.66              3         0              Normal
  11/01/2026 02 PM PST            2.66              3         0              Normal
  11/01/2026 03 PM PST            2.66              3         0              Normal
  11/01/2026 04 PM PST            2.66              3         0              Normal
  11/01/2026 05 PM PST            2.66              3         0              Normal
  11/01/2026 06 PM PST            2.66              3         0              Normal
  11/01/2026 07 PM PST            2.66              3         0              Normal
  11/01/2026 08 PM PST            2.66              3         0              Normal
  11/01/2026 09 PM PST            2.66              3         0              Normal
  11/01/2026 10 PM PST            2.66              3         0              Normal
  11/01/2026 11 PM PST            2.66              3         0              Normal
  11/02/2026 12 AM PST            2.66              3         0              Normal
  11/02/2026 01 AM PST            2.65              3         -              Normal
  11/02/2026 02 AM PST            2.65              3         0              Normal
  11/02/2026 03 AM PST            2.65              3         0              Normal
  11/02/2026 04 AM PST            2.65              3         0              Normal
  11/02/2026 05 AM PST            2.65              3         0              Normal
  11/02/2026 06 AM PST            2.65              3         0              Normal
  11/02/2026 07 AM PST            2.65              3         0              Normal
  11/02/2026 08 AM PST            2.65              3         0              Normal
  11/02/2026 09 AM PST            2.65              3         0              Normal
  11/02/2026 10 AM PST            2.65              3         0              Normal
  11/02/2026 11 AM PST            2.65              3         0              Normal
  11/02/2026 12 PM PST            2.65              3         0              Normal
  11/02/2026 01 PM PST            2.65              3         0              Normal
  11/02/2026 02 PM PST            2.65              3         0              Normal
  11/02/2026 03 PM PST            2.65              3         0              Normal
  11/02/2026 04 PM PST            2.65              3         0              Normal
  11/02/2026 05 PM PST            2.65              3         0              Normal
  11/02/2026 06 PM PST            2.65              3         0              Normal
  11/02/2026 07 PM PST            2.65              3         0              Normal
  11/02/2026 08 PM PST            2.65              3         0              Normal
  11/02/2026 09 PM PST            2.65              3         0              Normal
  11/02/2026 10 PM PST            2.65              3         0              Normal
  11/02/2026 11 PM PST            2.65              3         0              Normal
  11/03/2026 12 AM PST            2.65              3         0              Normal
  11/03/2026 01 AM PST            2.65              3         0              Normal
  11/03/2026 02 AM PST            2.65              3         0              Normal
  11/03/2026 03 AM PST            2.65              3         0              Normal
  11/03/2026 04 AM PST            2.65              3         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.