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GUADALUPE RIVER - SAN JOSE AT ALMADEN EXPRESSWAY (GUDC1)
| Latitude: 37.28º N | Longitude: 121.88º W | Elevation: 150 Feet | | | |
| Location: Santa Clara County in California | Bulletin Group: Central Coast | River Group: South Bay |
| Issuance Time: | Jan 22 2026 at 1:23 PM PST | Next Issuance: | Jan 23 2026 at 9:00 AM PST
| |
| Action/Monitor: 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: 01/22/2026 at 01:23 PM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 01/21/2026 at 07:00 PM PST
# Maximum Observed Stage: 1.70 Feet
# Maximum Observed Flow: 23 cfs
#
# Earliest Date & Time of Maximum Forecast: 01/22/2026 at 02:00 PM PST
# Maximum Forecast Stage: 1.67 Feet
# Maximum Forecast Flow: 21 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
01/17/2026 01 PM PST 1.70 23 Normal
01/17/2026 02 PM PST 1.70 23 0 Normal
01/17/2026 03 PM PST 1.70 23 0 Normal
01/17/2026 04 PM PST 1.70 23 0 Normal
01/17/2026 05 PM PST 1.70 23 0 Normal
01/17/2026 06 PM PST 1.70 23 0 Normal
01/17/2026 07 PM PST 1.70 23 0 Normal
01/17/2026 08 PM PST 1.69 23 - Normal
01/17/2026 09 PM PST 1.69 23 0 Normal
01/17/2026 10 PM PST 1.69 23 0 Normal
01/17/2026 11 PM PST 1.69 23 0 Normal
01/18/2026 12 AM PST 1.69 23 0 Normal
01/18/2026 01 AM PST 1.69 23 0 Normal
01/18/2026 02 AM PST 1.69 23 0 Normal
01/18/2026 03 AM PST 1.69 23 0 Normal
01/18/2026 04 AM PST 1.69 23 0 Normal
01/18/2026 05 AM PST 1.69 23 0 Normal
01/18/2026 06 AM PST 1.69 23 0 Normal
01/18/2026 07 AM PST 1.69 23 0 Normal
01/18/2026 08 AM PST 1.69 23 0 Normal
01/18/2026 09 AM PST 1.68 22 - Normal
01/18/2026 10 AM PST 1.68 22 0 Normal
01/18/2026 11 AM PST 1.67 21 - Normal
01/18/2026 12 PM PST 1.67 21 0 Normal
01/18/2026 01 PM PST 1.68 22 + Normal
01/18/2026 02 PM PST 1.68 22 0 Normal
01/18/2026 03 PM PST 1.69 23 + Normal
01/18/2026 04 PM PST 1.69 23 0 Normal
01/18/2026 05 PM PST 1.69 23 0 Normal
01/18/2026 06 PM PST 1.69 23 0 Normal
01/18/2026 07 PM PST 1.69 23 0 Normal
01/18/2026 08 PM PST 1.69 23 0 Normal
01/18/2026 09 PM PST 1.68 22 - Normal
01/18/2026 10 PM PST 1.68 22 0 Normal
01/18/2026 11 PM PST 1.68 22 0 Normal
01/19/2026 12 AM PST 1.68 22 0 Normal
01/19/2026 01 AM PST 1.69 23 + Normal
01/19/2026 02 AM PST 1.69 23 0 Normal
01/19/2026 03 AM PST 1.69 23 0 Normal
01/19/2026 04 AM PST 1.69 23 0 Normal
01/19/2026 05 AM PST 1.69 23 0 Normal
01/19/2026 06 AM PST 1.69 23 0 Normal
01/19/2026 07 AM PST 1.69 23 0 Normal
01/19/2026 08 AM PST 1.69 23 0 Normal
01/19/2026 09 AM PST 1.68 22 - Normal
01/19/2026 10 AM PST 1.67 21 - Normal
01/19/2026 11 AM PST 1.67 21 0 Normal
01/19/2026 12 PM PST 1.68 22 + Normal
01/19/2026 01 PM PST 1.68 22 0 Normal
01/19/2026 02 PM PST 1.69 23 + Normal
01/19/2026 03 PM PST 1.69 23 0 Normal
01/19/2026 04 PM PST 1.69 23 0 Normal
01/19/2026 05 PM PST 1.69 23 0 Normal
01/19/2026 06 PM PST 1.69 23 0 Normal
01/19/2026 07 PM PST 1.69 23 0 Normal
01/19/2026 08 PM PST 1.69 23 0 Normal
01/19/2026 09 PM PST 1.69 23 0 Normal
01/19/2026 10 PM PST 1.68 22 - Normal
01/19/2026 11 PM PST 1.68 22 0 Normal
01/20/2026 12 AM PST 1.68 22 0 Normal
01/20/2026 01 AM PST 1.68 22 0 Normal
01/20/2026 02 AM PST 1.68 22 0 Normal
01/20/2026 03 AM PST 1.68 22 0 Normal
01/20/2026 04 AM PST 1.68 22 0 Normal
01/20/2026 05 AM PST 1.68 22 0 Normal
01/20/2026 06 AM PST 1.68 22 0 Normal
01/20/2026 07 AM PST 1.68 22 0 Normal
01/20/2026 08 AM PST 1.68 22 0 Normal
01/20/2026 09 AM PST 1.68 22 0 Normal
01/20/2026 10 AM PST 1.66 21 - Normal
01/20/2026 11 AM PST 1.66 21 0 Normal
01/20/2026 12 PM PST 1.68 22 + Normal
01/20/2026 01 PM PST 1.68 22 0 Normal
01/20/2026 02 PM PST 1.68 22 0 Normal
01/20/2026 03 PM PST 1.69 23 + Normal
01/20/2026 04 PM PST 1.69 23 0 Normal
01/20/2026 05 PM PST 1.69 23 0 Normal
01/20/2026 06 PM PST 1.69 23 0 Normal
01/20/2026 07 PM PST 1.69 23 0 Normal
01/20/2026 08 PM PST 1.69 23 0 Normal
01/20/2026 09 PM PST 1.69 23 0 Normal
01/20/2026 10 PM PST 1.69 23 0 Normal
01/20/2026 11 PM PST 1.68 22 - Normal
01/21/2026 12 AM PST 1.68 22 0 Normal
01/21/2026 01 AM PST 1.68 22 0 Normal
01/21/2026 02 AM PST 1.68 22 0 Normal
01/21/2026 03 AM PST 1.68 22 0 Normal
01/21/2026 04 AM PST 1.68 22 0 Normal
01/21/2026 05 AM PST 1.68 22 0 Normal
01/21/2026 06 AM PST 1.68 22 0 Normal
01/21/2026 07 AM PST 1.68 22 0 Normal
01/21/2026 08 AM PST 1.68 22 0 Normal
01/21/2026 09 AM PST 1.68 22 0 Normal
01/21/2026 10 AM PST 1.67 21 - Normal
01/21/2026 11 AM PST 1.67 21 0 Normal
01/21/2026 12 PM PST 1.67 21 0 Normal
01/21/2026 01 PM PST 1.66 21 - Normal
01/21/2026 02 PM PST 1.67 21 + Normal
01/21/2026 03 PM PST 1.68 22 + Normal
01/21/2026 04 PM PST 1.68 22 0 Normal
01/21/2026 05 PM PST 1.68 22 0 Normal
01/21/2026 06 PM PST 1.69 23 + Normal
01/21/2026 07 PM PST 1.70 23 + Normal
01/21/2026 08 PM PST 1.69 23 - Normal
01/21/2026 09 PM PST 1.69 23 0 Normal
01/21/2026 10 PM PST 1.69 23 0 Normal
01/21/2026 11 PM PST 1.69 23 0 Normal
01/22/2026 12 AM PST 1.69 23 0 Normal
01/22/2026 01 AM PST 1.69 23 0 Normal
01/22/2026 02 AM PST 1.69 23 0 Normal
01/22/2026 03 AM PST 1.69 23 0 Normal
01/22/2026 04 AM PST 1.69 23 0 Normal
01/22/2026 05 AM PST 1.69 23 0 Normal
01/22/2026 06 AM PST 1.69 23 0 Normal
01/22/2026 07 AM PST 1.68 22 - Normal
01/22/2026 08 AM PST 1.69 23 + Normal
01/22/2026 09 AM PST 1.68 22 - Normal
01/22/2026 10 AM PST 1.67 21 - Normal
01/22/2026 11 AM PST 1.67 21 0 Normal
01/22/2026 12 PM PST 1.67 21 0 Normal
01/22/2026 01 PM PST 1.67 21 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
01/22/2026 02 PM PST 1.67 21 Normal
01/22/2026 03 PM PST 1.67 21 0 Normal
01/22/2026 04 PM PST 1.67 21 0 Normal
01/22/2026 05 PM PST 1.67 21 0 Normal
01/22/2026 06 PM PST 1.67 21 0 Normal
01/22/2026 07 PM PST 1.67 21 0 Normal
01/22/2026 08 PM PST 1.67 21 0 Normal
01/22/2026 09 PM PST 1.67 21 0 Normal
01/22/2026 10 PM PST 1.67 21 0 Normal
01/22/2026 11 PM PST 1.66 21 - Normal
01/23/2026 12 AM PST 1.66 21 0 Normal
01/23/2026 01 AM PST 1.66 21 0 Normal
01/23/2026 02 AM PST 1.66 21 0 Normal
01/23/2026 03 AM PST 1.66 21 0 Normal
01/23/2026 04 AM PST 1.66 21 0 Normal
01/23/2026 05 AM PST 1.66 21 0 Normal
01/23/2026 06 AM PST 1.66 21 0 Normal
01/23/2026 07 AM PST 1.66 21 0 Normal
01/23/2026 08 AM PST 1.66 21 0 Normal
01/23/2026 09 AM PST 1.66 21 0 Normal
01/23/2026 10 AM PST 1.66 21 0 Normal
01/23/2026 11 AM PST 1.66 21 0 Normal
01/23/2026 12 PM PST 1.66 21 0 Normal
01/23/2026 01 PM PST 1.66 21 0 Normal
01/23/2026 02 PM PST 1.66 21 0 Normal
01/23/2026 03 PM PST 1.66 21 0 Normal
01/23/2026 04 PM PST 1.66 21 0 Normal
01/23/2026 05 PM PST 1.66 21 0 Normal
01/23/2026 06 PM PST 1.65 20 - Normal
01/23/2026 07 PM PST 1.65 20 0 Normal
01/23/2026 08 PM PST 1.65 20 0 Normal
01/23/2026 09 PM PST 1.65 20 0 Normal
01/23/2026 10 PM PST 1.65 20 0 Normal
01/23/2026 11 PM PST 1.65 20 0 Normal
01/24/2026 12 AM PST 1.65 20 0 Normal
01/24/2026 01 AM PST 1.65 20 0 Normal
01/24/2026 02 AM PST 1.65 20 0 Normal
01/24/2026 03 AM PST 1.65 20 0 Normal
01/24/2026 04 AM PST 1.65 20 0 Normal
01/24/2026 05 AM PST 1.65 20 0 Normal
01/24/2026 06 AM PST 1.65 20 0 Normal
01/24/2026 07 AM PST 1.65 20 0 Normal
01/24/2026 08 AM PST 1.65 20 0 Normal
01/24/2026 09 AM PST 1.65 20 0 Normal
01/24/2026 10 AM PST 1.65 20 0 Normal
01/24/2026 11 AM PST 1.65 20 0 Normal
01/24/2026 12 PM PST 1.65 20 0 Normal
01/24/2026 01 PM PST 1.65 20 0 Normal
01/24/2026 02 PM PST 1.65 20 0 Normal
01/24/2026 03 PM PST 1.64 20 - Normal
01/24/2026 04 PM PST 1.64 20 0 Normal
01/24/2026 05 PM PST 1.64 20 0 Normal
01/24/2026 06 PM PST 1.64 20 0 Normal
01/24/2026 07 PM PST 1.64 20 0 Normal
01/24/2026 08 PM PST 1.64 20 0 Normal
01/24/2026 09 PM PST 1.64 20 0 Normal
01/24/2026 10 PM PST 1.64 20 0 Normal
01/24/2026 11 PM PST 1.64 20 0 Normal
01/25/2026 12 AM PST 1.64 20 0 Normal
01/25/2026 01 AM PST 1.64 20 0 Normal
01/25/2026 02 AM PST 1.64 20 0 Normal
01/25/2026 03 AM PST 1.64 20 0 Normal
01/25/2026 04 AM PST 1.64 20 0 Normal
01/25/2026 05 AM PST 1.64 20 0 Normal
01/25/2026 06 AM PST 1.64 20 0 Normal
01/25/2026 07 AM PST 1.64 20 0 Normal
01/25/2026 08 AM PST 1.64 20 0 Normal
01/25/2026 09 AM PST 1.64 20 0 Normal
01/25/2026 10 AM PST 1.64 20 0 Normal
01/25/2026 11 AM PST 1.64 20 0 Normal
01/25/2026 12 PM PST 1.64 20 0 Normal
01/25/2026 01 PM PST 1.63 19 - Normal
01/25/2026 02 PM PST 1.63 19 0 Normal
01/25/2026 03 PM PST 1.63 19 0 Normal
01/25/2026 04 PM PST 1.63 19 0 Normal
01/25/2026 05 PM PST 1.63 19 0 Normal
01/25/2026 06 PM PST 1.63 19 0 Normal
01/25/2026 07 PM PST 1.63 19 0 Normal
01/25/2026 08 PM PST 1.63 19 0 Normal
01/25/2026 09 PM PST 1.63 19 0 Normal
01/25/2026 10 PM PST 1.63 19 0 Normal
01/25/2026 11 PM PST 1.63 19 0 Normal
01/26/2026 12 AM PST 1.63 19 0 Normal
01/26/2026 01 AM PST 1.63 19 0 Normal
01/26/2026 02 AM PST 1.63 19 0 Normal
01/26/2026 03 AM PST 1.63 19 0 Normal
01/26/2026 04 AM PST 1.63 19 0 Normal
01/26/2026 05 AM PST 1.63 19 0 Normal
01/26/2026 06 AM PST 1.63 19 0 Normal
01/26/2026 07 AM PST 1.63 19 0 Normal
01/26/2026 08 AM PST 1.63 19 0 Normal
01/26/2026 09 AM PST 1.63 19 0 Normal
01/26/2026 10 AM PST 1.62 19 - Normal
01/26/2026 11 AM PST 1.62 19 0 Normal
01/26/2026 12 PM PST 1.62 19 0 Normal
01/26/2026 01 PM PST 1.62 19 0 Normal
01/26/2026 02 PM PST 1.62 19 0 Normal
01/26/2026 03 PM PST 1.62 19 0 Normal
01/26/2026 04 PM PST 1.62 19 0 Normal
01/26/2026 05 PM PST 1.62 19 0 Normal
01/26/2026 06 PM PST 1.62 19 0 Normal
01/26/2026 07 PM PST 1.62 19 0 Normal
01/26/2026 08 PM PST 1.62 19 0 Normal
01/26/2026 09 PM PST 1.62 19 0 Normal
01/26/2026 10 PM PST 1.62 19 0 Normal
01/26/2026 11 PM PST 1.62 19 0 Normal
01/27/2026 12 AM PST 1.62 19 0 Normal
01/27/2026 01 AM PST 1.62 19 0 Normal
01/27/2026 02 AM PST 1.62 19 0 Normal
01/27/2026 03 AM PST 1.62 19 0 Normal
01/27/2026 04 AM PST 1.62 19 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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