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GUADALUPE RIVER - SAN JOSE AT US HIGHWAY 101 (GSJC1)
| Latitude: 37.37º N | Longitude: 121.93º W | Elevation: 72 Feet | | Forecast Type: Unofficial Location |
| Location: Santa Clara County in California | Bulletin Group: Central Coast | River Group: South Bay |
| Issuance Time: | Mar 22 2026 at 7:43 AM PDT | Next Issuance: | Mar 23 2026 at 9:00 AM PDT
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| Action/Monitor: 17.0 Feet | Minor Flood: 18.5 Feet | Moderate Flood: 19.5 Feet | Major Flood: 21.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Guadalupe River - San Jose at US Highway 101 (GSJC1)
#
# File Generation Time: 03/22/2026 at 07:46 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/19/2026 at 11:00 AM PDT
# Maximum Observed Stage: 5.47 Feet
# Maximum Observed Flow: 57 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/22/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 5.43 Feet
# Maximum Forecast Flow: 53 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/17/2026 07 AM PDT 5.46 56 Normal
03/17/2026 08 AM PDT 5.47 57 + Normal
03/17/2026 09 AM PDT 5.47 57 0 Normal
03/17/2026 10 AM PDT 5.46 56 - Normal
03/17/2026 11 AM PDT 5.46 56 0 Normal
03/17/2026 12 PM PDT 5.46 56 0 Normal
03/17/2026 01 PM PDT 5.46 56 0 Normal
03/17/2026 02 PM PDT 5.46 56 0 Normal
03/17/2026 03 PM PDT 5.46 56 0 Normal
03/17/2026 04 PM PDT 5.46 56 0 Normal
03/17/2026 05 PM PDT 5.46 56 0 Normal
03/17/2026 06 PM PDT 5.46 56 0 Normal
03/17/2026 07 PM PDT 5.45 55 - Normal
03/17/2026 08 PM PDT 5.46 56 + Normal
03/17/2026 09 PM PDT 5.45 55 - Normal
03/17/2026 10 PM PDT 5.45 55 0 Normal
03/17/2026 11 PM PDT 5.45 55 0 Normal
03/18/2026 12 AM PDT 5.45 55 0 Normal
03/18/2026 01 AM PDT 5.45 55 0 Normal
03/18/2026 02 AM PDT 5.44 54 - Normal
03/18/2026 03 AM PDT 5.44 54 0 Normal
03/18/2026 04 AM PDT 5.44 54 0 Normal
03/18/2026 05 AM PDT 5.44 54 0 Normal
03/18/2026 06 AM PDT 5.44 54 0 Normal
03/18/2026 07 AM PDT 5.45 55 + Normal
03/18/2026 08 AM PDT 5.44 54 - Normal
03/18/2026 09 AM PDT 5.44 54 0 Normal
03/18/2026 10 AM PDT 5.44 54 0 Normal
03/18/2026 11 AM PDT 5.44 54 0 Normal
03/18/2026 12 PM PDT 5.44 54 0 Normal
03/18/2026 01 PM PDT 5.44 54 0 Normal
03/18/2026 02 PM PDT 5.44 54 0 Normal
03/18/2026 03 PM PDT 5.43 53 - Normal
03/18/2026 04 PM PDT 5.43 53 0 Normal
03/18/2026 05 PM PDT 5.44 54 + Normal
03/18/2026 06 PM PDT 5.43 53 - Normal
03/18/2026 07 PM PDT 5.42 52 - Normal
03/18/2026 08 PM PDT 5.42 52 0 Normal
03/18/2026 09 PM PDT 5.42 52 0 Normal
03/18/2026 10 PM PDT 5.41 51 - Normal
03/18/2026 11 PM PDT 5.41 51 0 Normal
03/19/2026 12 AM PDT 5.42 52 + Normal
03/19/2026 01 AM PDT 5.43 53 + Normal
03/19/2026 02 AM PDT 5.43 53 0 Normal
03/19/2026 03 AM PDT 5.44 54 + Normal
03/19/2026 04 AM PDT 5.44 54 0 Normal
03/19/2026 05 AM PDT 5.45 55 + Normal
03/19/2026 06 AM PDT 5.46 56 + Normal
03/19/2026 07 AM PDT 5.46 56 0 Normal
03/19/2026 08 AM PDT 5.47 57 + Normal
03/19/2026 09 AM PDT 5.47 57 0 Normal
03/19/2026 10 AM PDT 5.47 57 0 Normal
03/19/2026 11 AM PDT 5.47 57 0 Normal
03/19/2026 12 PM PDT 5.46 56 - Normal
03/19/2026 01 PM PDT 5.45 55 - Normal
03/19/2026 02 PM PDT 5.45 55 0 Normal
03/19/2026 03 PM PDT 5.45 55 0 Normal
03/19/2026 04 PM PDT 5.45 55 0 Normal
03/19/2026 05 PM PDT 5.46 56 + Normal
03/19/2026 06 PM PDT 5.45 55 - Normal
03/19/2026 07 PM PDT 5.44 54 - Normal
03/19/2026 08 PM PDT 5.44 54 0 Normal
03/19/2026 09 PM PDT 5.43 53 - Normal
03/19/2026 10 PM PDT 5.43 53 0 Normal
03/19/2026 11 PM PDT 5.43 53 0 Normal
03/20/2026 12 AM PDT 5.43 53 0 Normal
03/20/2026 01 AM PDT 5.43 53 0 Normal
03/20/2026 02 AM PDT 5.43 53 0 Normal
03/20/2026 03 AM PDT 5.43 53 0 Normal
03/20/2026 04 AM PDT 5.44 54 + Normal
03/20/2026 05 AM PDT 5.44 54 0 Normal
03/20/2026 06 AM PDT 5.44 54 0 Normal
03/20/2026 07 AM PDT 5.44 54 0 Normal
03/20/2026 08 AM PDT 5.45 55 + Normal
03/20/2026 09 AM PDT 5.44 54 - Normal
03/20/2026 10 AM PDT 5.44 54 0 Normal
03/20/2026 11 AM PDT 5.44 54 0 Normal
03/20/2026 12 PM PDT 5.44 54 0 Normal
03/20/2026 01 PM PDT 5.44 54 0 Normal
03/20/2026 02 PM PDT 5.44 54 0 Normal
03/20/2026 03 PM PDT 5.45 55 + Normal
03/20/2026 04 PM PDT 5.44 54 - Normal
03/20/2026 05 PM PDT 5.44 54 0 Normal
03/20/2026 06 PM PDT 5.43 53 - Normal
03/20/2026 07 PM PDT 5.44 54 + Normal
03/20/2026 08 PM PDT 5.43 53 - Normal
03/20/2026 09 PM PDT 5.43 53 0 Normal
03/20/2026 10 PM PDT 5.44 54 + Normal
03/20/2026 11 PM PDT 5.43 53 - Normal
03/21/2026 12 AM PDT 5.43 53 0 Normal
03/21/2026 01 AM PDT 5.43 53 0 Normal
03/21/2026 02 AM PDT 5.43 53 0 Normal
03/21/2026 03 AM PDT 5.43 53 0 Normal
03/21/2026 04 AM PDT 5.43 53 0 Normal
03/21/2026 05 AM PDT 5.44 54 + Normal
03/21/2026 06 AM PDT 5.43 53 - Normal
03/21/2026 07 AM PDT 5.43 53 0 Normal
03/21/2026 08 AM PDT 5.44 54 + Normal
03/21/2026 09 AM PDT 5.43 53 - Normal
03/21/2026 10 AM PDT 5.43 53 0 Normal
03/21/2026 11 AM PDT 5.43 53 0 Normal
03/21/2026 12 PM PDT 5.43 53 0 Normal
03/21/2026 01 PM PDT 5.43 53 0 Normal
03/21/2026 02 PM PDT 5.43 53 0 Normal
03/21/2026 03 PM PDT 5.43 53 0 Normal
03/21/2026 04 PM PDT 5.43 53 0 Normal
03/21/2026 05 PM PDT 5.43 53 0 Normal
03/21/2026 06 PM PDT 5.42 52 - Normal
03/21/2026 07 PM PDT 5.43 53 + Normal
03/21/2026 08 PM PDT 5.42 52 - Normal
03/21/2026 09 PM PDT 5.42 52 0 Normal
03/21/2026 10 PM PDT 5.42 52 0 Normal
03/21/2026 11 PM PDT 5.42 52 0 Normal
03/22/2026 12 AM PDT 5.42 52 0 Normal
03/22/2026 01 AM PDT 5.42 52 0 Normal
03/22/2026 02 AM PDT 5.42 52 0 Normal
03/22/2026 03 AM PDT 5.42 52 0 Normal
03/22/2026 04 AM PDT 5.42 52 0 Normal
03/22/2026 05 AM PDT 5.42 52 0 Normal
03/22/2026 06 AM PDT 5.43 53 + Normal
03/22/2026 07 AM PDT 5.43 53 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/22/2026 08 AM PDT 5.43 53 Normal
03/22/2026 09 AM PDT 5.43 53 0 Normal
03/22/2026 10 AM PDT 5.43 53 0 Normal
03/22/2026 11 AM PDT 5.43 53 0 Normal
03/22/2026 12 PM PDT 5.43 53 0 Normal
03/22/2026 01 PM PDT 5.43 53 0 Normal
03/22/2026 02 PM PDT 5.43 53 0 Normal
03/22/2026 03 PM PDT 5.43 53 0 Normal
03/22/2026 04 PM PDT 5.43 53 0 Normal
03/22/2026 05 PM PDT 5.43 53 0 Normal
03/22/2026 06 PM PDT 5.43 53 0 Normal
03/22/2026 07 PM PDT 5.43 53 0 Normal
03/22/2026 08 PM PDT 5.43 53 0 Normal
03/22/2026 09 PM PDT 5.43 53 0 Normal
03/22/2026 10 PM PDT 5.43 53 0 Normal
03/22/2026 11 PM PDT 5.43 53 0 Normal
03/23/2026 12 AM PDT 5.43 53 0 Normal
03/23/2026 01 AM PDT 5.43 53 0 Normal
03/23/2026 02 AM PDT 5.43 53 0 Normal
03/23/2026 03 AM PDT 5.42 52 - Normal
03/23/2026 04 AM PDT 5.42 52 0 Normal
03/23/2026 05 AM PDT 5.42 52 0 Normal
03/23/2026 06 AM PDT 5.42 52 0 Normal
03/23/2026 07 AM PDT 5.42 52 0 Normal
03/23/2026 08 AM PDT 5.42 52 0 Normal
03/23/2026 09 AM PDT 5.42 52 0 Normal
03/23/2026 10 AM PDT 5.42 52 0 Normal
03/23/2026 11 AM PDT 5.42 52 0 Normal
03/23/2026 12 PM PDT 5.42 52 0 Normal
03/23/2026 01 PM PDT 5.42 52 0 Normal
03/23/2026 02 PM PDT 5.42 52 0 Normal
03/23/2026 03 PM PDT 5.42 52 0 Normal
03/23/2026 04 PM PDT 5.42 52 0 Normal
03/23/2026 05 PM PDT 5.42 52 0 Normal
03/23/2026 06 PM PDT 5.42 52 0 Normal
03/23/2026 07 PM PDT 5.42 52 0 Normal
03/23/2026 08 PM PDT 5.42 52 0 Normal
03/23/2026 09 PM PDT 5.42 52 0 Normal
03/23/2026 10 PM PDT 5.42 52 0 Normal
03/23/2026 11 PM PDT 5.42 52 0 Normal
03/24/2026 12 AM PDT 5.42 52 0 Normal
03/24/2026 01 AM PDT 5.42 52 0 Normal
03/24/2026 02 AM PDT 5.42 52 0 Normal
03/24/2026 03 AM PDT 5.42 52 0 Normal
03/24/2026 04 AM PDT 5.42 52 0 Normal
03/24/2026 05 AM PDT 5.42 52 0 Normal
03/24/2026 06 AM PDT 5.42 52 0 Normal
03/24/2026 07 AM PDT 5.42 52 0 Normal
03/24/2026 08 AM PDT 5.42 52 0 Normal
03/24/2026 09 AM PDT 5.42 52 0 Normal
03/24/2026 10 AM PDT 5.42 52 0 Normal
03/24/2026 11 AM PDT 5.42 52 0 Normal
03/24/2026 12 PM PDT 5.42 52 0 Normal
03/24/2026 01 PM PDT 5.42 52 0 Normal
03/24/2026 02 PM PDT 5.42 52 0 Normal
03/24/2026 03 PM PDT 5.42 52 0 Normal
03/24/2026 04 PM PDT 5.42 52 0 Normal
03/24/2026 05 PM PDT 5.42 52 0 Normal
03/24/2026 06 PM PDT 5.42 52 0 Normal
03/24/2026 07 PM PDT 5.42 52 0 Normal
03/24/2026 08 PM PDT 5.42 52 0 Normal
03/24/2026 09 PM PDT 5.42 52 0 Normal
03/24/2026 10 PM PDT 5.42 52 0 Normal
03/24/2026 11 PM PDT 5.41 51 - Normal
03/25/2026 12 AM PDT 5.41 51 0 Normal
03/25/2026 01 AM PDT 5.41 51 0 Normal
03/25/2026 02 AM PDT 5.41 51 0 Normal
03/25/2026 03 AM PDT 5.41 51 0 Normal
03/25/2026 04 AM PDT 5.41 51 0 Normal
03/25/2026 05 AM PDT 5.41 51 0 Normal
03/25/2026 06 AM PDT 5.41 51 0 Normal
03/25/2026 07 AM PDT 5.41 51 0 Normal
03/25/2026 08 AM PDT 5.41 51 0 Normal
03/25/2026 09 AM PDT 5.41 51 0 Normal
03/25/2026 10 AM PDT 5.41 51 0 Normal
03/25/2026 11 AM PDT 5.41 51 0 Normal
03/25/2026 12 PM PDT 5.41 51 0 Normal
03/25/2026 01 PM PDT 5.41 51 0 Normal
03/25/2026 02 PM PDT 5.41 51 0 Normal
03/25/2026 03 PM PDT 5.41 51 0 Normal
03/25/2026 04 PM PDT 5.41 51 0 Normal
03/25/2026 05 PM PDT 5.41 51 0 Normal
03/25/2026 06 PM PDT 5.41 51 0 Normal
03/25/2026 07 PM PDT 5.41 51 0 Normal
03/25/2026 08 PM PDT 5.41 51 0 Normal
03/25/2026 09 PM PDT 5.41 51 0 Normal
03/25/2026 10 PM PDT 5.41 51 0 Normal
03/25/2026 11 PM PDT 5.41 51 0 Normal
03/26/2026 12 AM PDT 5.41 51 0 Normal
03/26/2026 01 AM PDT 5.41 51 0 Normal
03/26/2026 02 AM PDT 5.41 51 0 Normal
03/26/2026 03 AM PDT 5.41 51 0 Normal
03/26/2026 04 AM PDT 5.41 51 0 Normal
03/26/2026 05 AM PDT 5.41 51 0 Normal
03/26/2026 06 AM PDT 5.41 51 0 Normal
03/26/2026 07 AM PDT 5.41 51 0 Normal
03/26/2026 08 AM PDT 5.41 51 0 Normal
03/26/2026 09 AM PDT 5.41 51 0 Normal
03/26/2026 10 AM PDT 5.41 51 0 Normal
03/26/2026 11 AM PDT 5.41 51 0 Normal
03/26/2026 12 PM PDT 5.41 51 0 Normal
03/26/2026 01 PM PDT 5.41 51 0 Normal
03/26/2026 02 PM PDT 5.41 51 0 Normal
03/26/2026 03 PM PDT 5.41 51 0 Normal
03/26/2026 04 PM PDT 5.41 51 0 Normal
03/26/2026 05 PM PDT 5.41 51 0 Normal
03/26/2026 06 PM PDT 5.40 50 - Normal
03/26/2026 07 PM PDT 5.40 50 0 Normal
03/26/2026 08 PM PDT 5.40 50 0 Normal
03/26/2026 09 PM PDT 5.40 50 0 Normal
03/26/2026 10 PM PDT 5.40 50 0 Normal
03/26/2026 11 PM PDT 5.40 50 0 Normal
03/27/2026 12 AM PDT 5.40 50 0 Normal
03/27/2026 01 AM PDT 5.40 50 0 Normal
03/27/2026 02 AM PDT 5.40 50 0 Normal
03/27/2026 03 AM PDT 5.40 50 0 Normal
03/27/2026 04 AM PDT 5.40 50 0 Normal
03/27/2026 05 AM PDT 5.40 50 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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