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GUADALUPE RIVER - SAN JOSE AT ALMADEN EXPRESSWAY (GUDC1)
| Latitude: 37.28º N | Longitude: 121.88º W | Elevation: 150 Feet | | Forecast Type: Official Location |
| Location: Santa Clara County in California | Bulletin Group: Central Coast | River Group: South Bay |
| Issuance Time: | Oct 14 2026 at 7:33 AM PDT | Next Issuance: | Oct 15 2026 at 9:00 AM PDT
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| Action: 9.0 Feet | Minor Flood: 10.5 Feet | Moderate Flood: 11.5 Feet | Major Flood: 15.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Guadalupe River - San Jose at Almaden Exprwy (GUDC1)
#
# File Generation Time: 10/14/2026 at 07:33 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 10/09/2026 at 10:00 AM PDT
# Maximum Observed Stage: 2.56 Feet
# Maximum Observed Flow: 41 cfs
#
# Earliest Date & Time of Maximum Forecast: 10/15/2026 at 06:00 PM PDT
# Maximum Forecast Stage: 1.93 Feet
# Maximum Forecast Flow: 1 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
10/09/2026 07 AM PDT 2.56 41 Normal
10/09/2026 08 AM PDT 2.56 41 0 Normal
10/09/2026 09 AM PDT 2.56 41 0 Normal
10/09/2026 10 AM PDT 2.56 41 0 Normal
10/09/2026 11 AM PDT 2.55 40 - Normal
10/09/2026 12 PM PDT 2.55 40 0 Normal
10/09/2026 01 PM PDT 2.55 40 0 Normal
10/09/2026 02 PM PDT 2.54 39 - Normal
10/09/2026 03 PM PDT 2.54 39 0 Normal
10/09/2026 04 PM PDT 2.53 37 - Normal
10/09/2026 05 PM PDT 2.52 36 - Normal
10/09/2026 06 PM PDT 2.52 36 0 Normal
10/09/2026 07 PM PDT 2.51 35 - Normal
10/09/2026 08 PM PDT 2.50 34 - Normal
10/09/2026 09 PM PDT 2.49 33 - Normal
10/09/2026 10 PM PDT 2.48 32 - Normal
10/09/2026 11 PM PDT 2.47 31 - Normal
10/10/2026 12 AM PDT 2.47 31 0 Normal
10/10/2026 01 AM PDT 2.46 30 - Normal
10/10/2026 02 AM PDT 2.45 29 - Normal
10/10/2026 03 AM PDT 2.45 29 0 Normal
10/10/2026 04 AM PDT 2.45 29 0 Normal
10/10/2026 05 AM PDT 2.44 28 - Normal
10/10/2026 06 AM PDT 2.44 28 0 Normal
10/10/2026 07 AM PDT 2.44 28 0 Normal
10/10/2026 08 AM PDT 2.43 27 - Normal
10/10/2026 09 AM PDT 2.43 27 0 Normal
10/10/2026 10 AM PDT 2.43 27 0 Normal
10/10/2026 11 AM PDT 2.43 27 0 Normal
10/10/2026 12 PM PDT 2.43 27 0 Normal
10/10/2026 01 PM PDT 2.42 26 - Normal
10/10/2026 02 PM PDT 2.42 26 0 Normal
10/10/2026 03 PM PDT 2.41 25 - Normal
10/10/2026 04 PM PDT 2.41 25 0 Normal
10/10/2026 05 PM PDT 2.40 24 - Normal
10/10/2026 06 PM PDT 2.40 24 0 Normal
10/10/2026 07 PM PDT 2.39 23 - Normal
10/10/2026 08 PM PDT 2.38 22 - Normal
10/10/2026 09 PM PDT 2.37 22 - Normal
10/10/2026 10 PM PDT 2.37 22 0 Normal
10/10/2026 11 PM PDT 2.36 21 - Normal
10/11/2026 12 AM PDT 2.35 20 - Normal
10/11/2026 01 AM PDT 2.35 20 0 Normal
10/11/2026 02 AM PDT 2.34 19 - Normal
10/11/2026 03 AM PDT 2.34 19 0 Normal
10/11/2026 04 AM PDT 2.33 18 - Normal
10/11/2026 05 AM PDT 2.33 18 0 Normal
10/11/2026 06 AM PDT 2.32 18 - Normal
10/11/2026 07 AM PDT 2.32 18 0 Normal
10/11/2026 08 AM PDT 2.32 18 0 Normal
10/11/2026 09 AM PDT 2.32 18 0 Normal
10/11/2026 10 AM PDT 2.32 18 0 Normal
10/11/2026 11 AM PDT 2.32 18 0 Normal
10/11/2026 12 PM PDT 2.32 18 0 Normal
10/11/2026 01 PM PDT 2.32 18 0 Normal
10/11/2026 02 PM PDT 2.32 18 0 Normal
10/11/2026 03 PM PDT 2.32 18 0 Normal
10/11/2026 04 PM PDT 2.31 17 - Normal
10/11/2026 05 PM PDT 2.31 17 0 Normal
10/11/2026 06 PM PDT 2.30 16 - Normal
10/11/2026 07 PM PDT 2.30 16 0 Normal
10/11/2026 08 PM PDT 2.29 15 - Normal
10/11/2026 09 PM PDT 2.28 15 - Normal
10/11/2026 10 PM PDT 2.28 15 0 Normal
10/11/2026 11 PM PDT 2.27 14 - Normal
10/12/2026 12 AM PDT 2.26 13 - Normal
10/12/2026 01 AM PDT 2.25 12 - Normal
10/12/2026 02 AM PDT 2.25 12 0 Normal
10/12/2026 03 AM PDT 2.24 12 - Normal
10/12/2026 04 AM PDT 2.24 12 0 Normal
10/12/2026 05 AM PDT 2.23 11 - Normal
10/12/2026 06 AM PDT 2.23 11 0 Normal
10/12/2026 07 AM PDT 2.22 11 - Normal
10/12/2026 08 AM PDT 2.22 11 0 Normal
10/12/2026 09 AM PDT 2.21 10 - Normal
10/12/2026 10 AM PDT 2.21 10 0 Normal
10/12/2026 11 AM PDT 2.20 10 - Normal
10/12/2026 12 PM PDT 2.19 9 - Normal
10/12/2026 01 PM PDT 2.19 9 0 Normal
10/12/2026 02 PM PDT 2.17 8 - Normal
10/12/2026 03 PM PDT 2.16 8 - Normal
10/12/2026 04 PM PDT 2.15 7 - Normal
10/12/2026 05 PM PDT 2.14 7 - Normal
10/12/2026 06 PM PDT 2.13 6 - Normal
10/12/2026 07 PM PDT 2.12 6 - Normal
10/12/2026 08 PM PDT 2.10 5 - Normal
10/12/2026 09 PM PDT 2.09 5 - Normal
10/12/2026 10 PM PDT 2.08 5 - Normal
10/12/2026 11 PM PDT 2.07 4 - Normal
10/13/2026 12 AM PDT 2.06 4 - Normal
10/13/2026 01 AM PDT 2.05 3 - Normal
10/13/2026 02 AM PDT 2.04 3 - Normal
10/13/2026 03 AM PDT 2.03 3 - Normal
10/13/2026 04 AM PDT 2.02 3 - Normal
10/13/2026 05 AM PDT 2.02 3 0 Normal
10/13/2026 06 AM PDT 2.01 2 - Normal
10/13/2026 07 AM PDT 2.01 2 0 Normal
10/13/2026 08 AM PDT 2.00 2 - Normal
10/13/2026 09 AM PDT 1.99 2 - Normal
10/13/2026 10 AM PDT 1.99 2 0 Normal
10/13/2026 11 AM PDT 1.98 2 - Normal
10/13/2026 12 PM PDT 1.97 1 - Normal
10/13/2026 01 PM PDT 1.96 1 - Normal
10/13/2026 02 PM PDT 1.96 1 0 Normal
10/13/2026 03 PM PDT 1.94 1 - Normal
10/13/2026 04 PM PDT 1.94 1 0 Normal
10/13/2026 05 PM PDT 1.93 1 - Normal
10/13/2026 06 PM PDT 1.92 1 - Normal
10/13/2026 07 PM PDT 1.91 1 - Normal
10/13/2026 08 PM PDT 1.90 1 - Normal
10/13/2026 09 PM PDT 1.90 1 0 Normal
10/13/2026 10 PM PDT 1.92 1 + Normal
10/13/2026 11 PM PDT 1.88 0 - Normal
10/14/2026 12 AM PDT 1.88 0 0 Normal
10/14/2026 01 AM PDT 1.87 0 - Normal
10/14/2026 02 AM PDT 1.86 0 - Normal
10/14/2026 03 AM PDT 1.86 0 0 Normal
10/14/2026 04 AM PDT 1.85 0 - Normal
10/14/2026 05 AM PDT 1.85 0 0 Normal
10/14/2026 06 AM PDT 1.85 0 0 Normal
10/14/2026 07 AM PDT 1.84 0 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
10/14/2026 08 AM PDT 1.84 0 Normal
10/14/2026 09 AM PDT 1.84 0 0 Normal
10/14/2026 10 AM PDT 1.84 0 0 Normal
10/14/2026 11 AM PDT 1.84 0 0 Normal
10/14/2026 12 PM PDT 1.84 0 0 Normal
10/14/2026 01 PM PDT 1.84 0 0 Normal
10/14/2026 02 PM PDT 1.84 0 0 Normal
10/14/2026 03 PM PDT 1.84 0 0 Normal
10/14/2026 04 PM PDT 1.84 0 0 Normal
10/14/2026 05 PM PDT 1.84 0 0 Normal
10/14/2026 06 PM PDT 1.90 1 + Normal
10/14/2026 07 PM PDT 1.90 1 0 Normal
10/14/2026 08 PM PDT 1.90 1 0 Normal
10/14/2026 09 PM PDT 1.90 1 0 Normal
10/14/2026 10 PM PDT 1.90 1 0 Normal
10/14/2026 11 PM PDT 1.90 1 0 Normal
10/15/2026 12 AM PDT 1.90 1 0 Normal
10/15/2026 01 AM PDT 1.90 1 0 Normal
10/15/2026 02 AM PDT 1.90 1 0 Normal
10/15/2026 03 AM PDT 1.90 1 0 Normal
10/15/2026 04 AM PDT 1.90 1 0 Normal
10/15/2026 05 AM PDT 1.89 0 - Normal
10/15/2026 06 AM PDT 1.89 0 0 Normal
10/15/2026 07 AM PDT 1.89 0 0 Normal
10/15/2026 08 AM PDT 1.89 0 0 Normal
10/15/2026 09 AM PDT 1.89 0 0 Normal
10/15/2026 10 AM PDT 1.89 0 0 Normal
10/15/2026 11 AM PDT 1.89 0 0 Normal
10/15/2026 12 PM PDT 1.89 0 0 Normal
10/15/2026 01 PM PDT 1.89 0 0 Normal
10/15/2026 02 PM PDT 1.89 0 0 Normal
10/15/2026 03 PM PDT 1.89 0 0 Normal
10/15/2026 04 PM PDT 1.89 0 0 Normal
10/15/2026 05 PM PDT 1.89 0 0 Normal
10/15/2026 06 PM PDT 1.93 1 + Normal
10/15/2026 07 PM PDT 1.93 1 0 Normal
10/15/2026 08 PM PDT 1.93 1 0 Normal
10/15/2026 09 PM PDT 1.93 1 0 Normal
10/15/2026 10 PM PDT 1.93 1 0 Normal
10/15/2026 11 PM PDT 1.93 1 0 Normal
10/16/2026 12 AM PDT 1.93 1 0 Normal
10/16/2026 01 AM PDT 1.93 1 0 Normal
10/16/2026 02 AM PDT 1.93 1 0 Normal
10/16/2026 03 AM PDT 1.93 1 0 Normal
10/16/2026 04 AM PDT 1.93 1 0 Normal
10/16/2026 05 AM PDT 1.93 1 0 Normal
10/16/2026 06 AM PDT 1.93 1 0 Normal
10/16/2026 07 AM PDT 1.93 1 0 Normal
10/16/2026 08 AM PDT 1.93 1 0 Normal
10/16/2026 09 AM PDT 1.93 1 0 Normal
10/16/2026 10 AM PDT 1.93 1 0 Normal
10/16/2026 11 AM PDT 1.93 1 0 Normal
10/16/2026 12 PM PDT 1.93 1 0 Normal
10/16/2026 01 PM PDT 1.93 1 0 Normal
10/16/2026 02 PM PDT 1.93 1 0 Normal
10/16/2026 03 PM PDT 1.93 1 0 Normal
10/16/2026 04 PM PDT 1.93 1 0 Normal
10/16/2026 05 PM PDT 1.93 1 0 Normal
10/16/2026 06 PM PDT 1.93 1 0 Normal
10/16/2026 07 PM PDT 1.93 1 0 Normal
10/16/2026 08 PM PDT 1.93 1 0 Normal
10/16/2026 09 PM PDT 1.93 1 0 Normal
10/16/2026 10 PM PDT 1.93 1 0 Normal
10/16/2026 11 PM PDT 1.93 1 0 Normal
10/17/2026 12 AM PDT 1.93 1 0 Normal
10/17/2026 01 AM PDT 1.93 1 0 Normal
10/17/2026 02 AM PDT 1.93 1 0 Normal
10/17/2026 03 AM PDT 1.93 1 0 Normal
10/17/2026 04 AM PDT 1.93 1 0 Normal
10/17/2026 05 AM PDT 1.93 1 0 Normal
10/17/2026 06 AM PDT 1.93 1 0 Normal
10/17/2026 07 AM PDT 1.93 1 0 Normal
10/17/2026 08 AM PDT 1.93 1 0 Normal
10/17/2026 09 AM PDT 1.93 1 0 Normal
10/17/2026 10 AM PDT 1.93 1 0 Normal
10/17/2026 11 AM PDT 1.93 1 0 Normal
10/17/2026 12 PM PDT 1.93 1 0 Normal
10/17/2026 01 PM PDT 1.93 1 0 Normal
10/17/2026 02 PM PDT 1.93 1 0 Normal
10/17/2026 03 PM PDT 1.93 1 0 Normal
10/17/2026 04 PM PDT 1.93 1 0 Normal
10/17/2026 05 PM PDT 1.93 1 0 Normal
10/17/2026 06 PM PDT 1.93 1 0 Normal
10/17/2026 07 PM PDT 1.93 1 0 Normal
10/17/2026 08 PM PDT 1.93 1 0 Normal
10/17/2026 09 PM PDT 1.93 1 0 Normal
10/17/2026 10 PM PDT 1.93 1 0 Normal
10/17/2026 11 PM PDT 1.93 1 0 Normal
10/18/2026 12 AM PDT 1.93 1 0 Normal
10/18/2026 01 AM PDT 1.93 1 0 Normal
10/18/2026 02 AM PDT 1.93 1 0 Normal
10/18/2026 03 AM PDT 1.93 1 0 Normal
10/18/2026 04 AM PDT 1.93 1 0 Normal
10/18/2026 05 AM PDT 1.93 1 0 Normal
10/18/2026 06 AM PDT 1.93 1 0 Normal
10/18/2026 07 AM PDT 1.93 1 0 Normal
10/18/2026 08 AM PDT 1.93 1 0 Normal
10/18/2026 09 AM PDT 1.93 1 0 Normal
10/18/2026 10 AM PDT 1.93 1 0 Normal
10/18/2026 11 AM PDT 1.93 1 0 Normal
10/18/2026 12 PM PDT 1.93 1 0 Normal
10/18/2026 01 PM PDT 1.93 1 0 Normal
10/18/2026 02 PM PDT 1.93 1 0 Normal
10/18/2026 03 PM PDT 1.93 1 0 Normal
10/18/2026 04 PM PDT 1.93 1 0 Normal
10/18/2026 05 PM PDT 1.93 1 0 Normal
10/18/2026 06 PM PDT 1.93 1 0 Normal
10/18/2026 07 PM PDT 1.93 1 0 Normal
10/18/2026 08 PM PDT 1.93 1 0 Normal
10/18/2026 09 PM PDT 1.93 1 0 Normal
10/18/2026 10 PM PDT 1.93 1 0 Normal
10/18/2026 11 PM PDT 1.93 1 0 Normal
10/19/2026 12 AM PDT 1.93 1 0 Normal
10/19/2026 01 AM PDT 1.93 1 0 Normal
10/19/2026 02 AM PDT 1.93 1 0 Normal
10/19/2026 03 AM PDT 1.93 1 0 Normal
10/19/2026 04 AM PDT 1.93 1 0 Normal
10/19/2026 05 AM PDT 1.93 1 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.
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