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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: | Jun 30 2026 at 7:16 AM PDT | Next Issuance: | Jul 01 2026 at 9:00 AM PDT
| |
| 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: 06/30/2026 at 07:17 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 06/25/2026 at 08:00 PM PDT
# Maximum Observed Stage: 5.16 Feet
# Maximum Observed Flow: 31 cfs
#
# Earliest Date & Time of Maximum Forecast: 06/30/2026 at 10:00 AM PDT
# Maximum Forecast Stage: 5.12 Feet
# Maximum Forecast Flow: 28 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
06/25/2026 07 AM PDT 5.14 30 Normal
06/25/2026 08 AM PDT 5.14 30 0 Normal
06/25/2026 09 AM PDT 5.14 30 0 Normal
06/25/2026 10 AM PDT 5.14 30 0 Normal
06/25/2026 11 AM PDT 5.14 30 0 Normal
06/25/2026 12 PM PDT 5.14 30 0 Normal
06/25/2026 01 PM PDT 5.14 30 0 Normal
06/25/2026 02 PM PDT 5.14 30 0 Normal
06/25/2026 03 PM PDT 5.13 29 - Normal
06/25/2026 04 PM PDT 5.14 30 + Normal
06/25/2026 05 PM PDT 5.15 30 + Normal
06/25/2026 06 PM PDT 5.16 31 + Normal
06/25/2026 07 PM PDT 5.16 31 0 Normal
06/25/2026 08 PM PDT 5.16 31 0 Normal
06/25/2026 09 PM PDT 5.15 30 - Normal
06/25/2026 10 PM PDT 5.14 30 - Normal
06/25/2026 11 PM PDT 5.13 29 - Normal
06/26/2026 12 AM PDT 5.13 29 0 Normal
06/26/2026 01 AM PDT 5.12 28 - Normal
06/26/2026 02 AM PDT 5.12 28 0 Normal
06/26/2026 03 AM PDT 5.13 29 + Normal
06/26/2026 04 AM PDT 5.13 29 0 Normal
06/26/2026 05 AM PDT 5.13 29 0 Normal
06/26/2026 06 AM PDT 5.13 29 0 Normal
06/26/2026 07 AM PDT 5.13 29 0 Normal
06/26/2026 08 AM PDT 5.13 29 0 Normal
06/26/2026 09 AM PDT 5.13 29 0 Normal
06/26/2026 10 AM PDT 5.13 29 0 Normal
06/26/2026 11 AM PDT 5.14 30 + Normal
06/26/2026 12 PM PDT 5.13 29 - Normal
06/26/2026 01 PM PDT 5.13 29 0 Normal
06/26/2026 02 PM PDT 5.15 30 + Normal
06/26/2026 03 PM PDT 5.14 30 - Normal
06/26/2026 04 PM PDT 5.13 29 - Normal
06/26/2026 05 PM PDT 5.13 29 0 Normal
06/26/2026 06 PM PDT 5.13 29 0 Normal
06/26/2026 07 PM PDT 5.15 30 + Normal
06/26/2026 08 PM PDT 5.15 30 0 Normal
06/26/2026 09 PM PDT 5.14 30 - Normal
06/26/2026 10 PM PDT 5.13 29 - Normal
06/26/2026 11 PM PDT 5.12 28 - Normal
06/27/2026 12 AM PDT 5.12 28 0 Normal
06/27/2026 01 AM PDT 5.12 28 0 Normal
06/27/2026 02 AM PDT 5.12 28 0 Normal
06/27/2026 03 AM PDT 5.12 28 0 Normal
06/27/2026 04 AM PDT 5.13 29 + Normal
06/27/2026 05 AM PDT 5.13 29 0 Normal
06/27/2026 06 AM PDT 5.14 30 + Normal
06/27/2026 07 AM PDT 5.13 29 - Normal
06/27/2026 08 AM PDT 5.14 30 + Normal
06/27/2026 09 AM PDT 5.14 30 0 Normal
06/27/2026 10 AM PDT 5.12 28 - Normal
06/27/2026 11 AM PDT 5.12 28 0 Normal
06/27/2026 12 PM PDT 5.12 28 0 Normal
06/27/2026 01 PM PDT 5.12 28 0 Normal
06/27/2026 02 PM PDT 5.12 28 0 Normal
06/27/2026 03 PM PDT 5.12 28 0 Normal
06/27/2026 04 PM PDT 5.11 27 - Normal
06/27/2026 05 PM PDT 5.11 27 0 Normal
06/27/2026 06 PM PDT 5.11 27 0 Normal
06/27/2026 07 PM PDT 5.11 27 0 Normal
06/27/2026 08 PM PDT 5.12 28 + Normal
06/27/2026 09 PM PDT 5.11 27 - Normal
06/27/2026 10 PM PDT 5.11 27 0 Normal
06/27/2026 11 PM PDT 5.11 27 0 Normal
06/28/2026 12 AM PDT 5.11 27 0 Normal
06/28/2026 01 AM PDT 5.10 27 - Normal
06/28/2026 02 AM PDT 5.10 27 0 Normal
06/28/2026 03 AM PDT 5.11 27 + Normal
06/28/2026 04 AM PDT 5.11 27 0 Normal
06/28/2026 05 AM PDT 5.11 27 0 Normal
06/28/2026 06 AM PDT 5.11 27 0 Normal
06/28/2026 07 AM PDT 5.11 27 0 Normal
06/28/2026 08 AM PDT 5.12 28 + Normal
06/28/2026 09 AM PDT 5.12 28 0 Normal
06/28/2026 10 AM PDT 5.13 29 + Normal
06/28/2026 11 AM PDT 5.13 29 0 Normal
06/28/2026 12 PM PDT 5.12 28 - Normal
06/28/2026 01 PM PDT 5.12 28 0 Normal
06/28/2026 02 PM PDT 5.12 28 0 Normal
06/28/2026 03 PM PDT 5.12 28 0 Normal
06/28/2026 04 PM PDT 5.12 28 0 Normal
06/28/2026 05 PM PDT 5.11 27 - Normal
06/28/2026 06 PM PDT 5.11 27 0 Normal
06/28/2026 07 PM PDT 5.11 27 0 Normal
06/28/2026 08 PM PDT 5.10 27 - Normal
06/28/2026 09 PM PDT 5.10 27 0 Normal
06/28/2026 10 PM PDT 5.10 27 0 Normal
06/28/2026 11 PM PDT 5.10 27 0 Normal
06/29/2026 12 AM PDT 5.10 27 0 Normal
06/29/2026 01 AM PDT 5.10 27 0 Normal
06/29/2026 02 AM PDT 5.10 27 0 Normal
06/29/2026 03 AM PDT 5.11 27 + Normal
06/29/2026 04 AM PDT 5.11 27 0 Normal
06/29/2026 05 AM PDT 5.11 27 0 Normal
06/29/2026 06 AM PDT 5.11 27 0 Normal
06/29/2026 07 AM PDT 5.12 28 + Normal
06/29/2026 08 AM PDT 5.12 28 0 Normal
06/29/2026 09 AM PDT 5.11 27 - Normal
06/29/2026 10 AM PDT 5.12 28 + Normal
06/29/2026 11 AM PDT 5.12 28 0 Normal
06/29/2026 12 PM PDT 5.12 28 0 Normal
06/29/2026 01 PM PDT 5.13 29 + Normal
06/29/2026 02 PM PDT 5.12 28 - Normal
06/29/2026 03 PM PDT 5.11 27 - Normal
06/29/2026 04 PM PDT 5.11 27 0 Normal
06/29/2026 05 PM PDT 5.11 27 0 Normal
06/29/2026 06 PM PDT 5.10 27 - Normal
06/29/2026 07 PM PDT 5.10 27 0 Normal
06/29/2026 08 PM PDT 5.10 27 0 Normal
06/29/2026 09 PM PDT 5.10 27 0 Normal
06/29/2026 10 PM PDT 5.10 27 0 Normal
06/29/2026 11 PM PDT 5.10 27 0 Normal
06/30/2026 12 AM PDT 5.10 27 0 Normal
06/30/2026 01 AM PDT 5.10 27 0 Normal
06/30/2026 02 AM PDT 5.10 27 0 Normal
06/30/2026 03 AM PDT 5.10 27 0 Normal
06/30/2026 04 AM PDT 5.10 27 0 Normal
06/30/2026 05 AM PDT 5.10 27 0 Normal
06/30/2026 06 AM PDT 5.11 27 + Normal
06/30/2026 07 AM PDT 5.11 27 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
06/30/2026 08 AM PDT 5.11 27 Normal
06/30/2026 09 AM PDT 5.11 27 0 Normal
06/30/2026 10 AM PDT 5.12 28 + Normal
06/30/2026 11 AM PDT 5.12 28 0 Normal
06/30/2026 12 PM PDT 5.12 28 0 Normal
06/30/2026 01 PM PDT 5.12 28 0 Normal
06/30/2026 02 PM PDT 5.12 28 0 Normal
06/30/2026 03 PM PDT 5.12 28 0 Normal
06/30/2026 04 PM PDT 5.12 28 0 Normal
06/30/2026 05 PM PDT 5.12 28 0 Normal
06/30/2026 06 PM PDT 5.12 28 0 Normal
06/30/2026 07 PM PDT 5.12 28 0 Normal
06/30/2026 08 PM PDT 5.12 28 0 Normal
06/30/2026 09 PM PDT 5.12 28 0 Normal
06/30/2026 10 PM PDT 5.12 28 0 Normal
06/30/2026 11 PM PDT 5.12 28 0 Normal
07/01/2026 12 AM PDT 5.12 28 0 Normal
07/01/2026 01 AM PDT 5.12 28 0 Normal
07/01/2026 02 AM PDT 5.12 28 0 Normal
07/01/2026 03 AM PDT 5.12 28 0 Normal
07/01/2026 04 AM PDT 5.12 28 0 Normal
07/01/2026 05 AM PDT 5.12 28 0 Normal
07/01/2026 06 AM PDT 5.12 28 0 Normal
07/01/2026 07 AM PDT 5.12 28 0 Normal
07/01/2026 08 AM PDT 5.12 28 0 Normal
07/01/2026 09 AM PDT 5.12 28 0 Normal
07/01/2026 10 AM PDT 5.12 28 0 Normal
07/01/2026 11 AM PDT 5.12 28 0 Normal
07/01/2026 12 PM PDT 5.12 28 0 Normal
07/01/2026 01 PM PDT 5.12 28 0 Normal
07/01/2026 02 PM PDT 5.12 28 0 Normal
07/01/2026 03 PM PDT 5.12 28 0 Normal
07/01/2026 04 PM PDT 5.12 28 0 Normal
07/01/2026 05 PM PDT 5.12 28 0 Normal
07/01/2026 06 PM PDT 5.12 28 0 Normal
07/01/2026 07 PM PDT 5.12 28 0 Normal
07/01/2026 08 PM PDT 5.12 28 0 Normal
07/01/2026 09 PM PDT 5.12 28 0 Normal
07/01/2026 10 PM PDT 5.12 28 0 Normal
07/01/2026 11 PM PDT 5.12 28 0 Normal
07/02/2026 12 AM PDT 5.12 28 0 Normal
07/02/2026 01 AM PDT 5.12 28 0 Normal
07/02/2026 02 AM PDT 5.12 28 0 Normal
07/02/2026 03 AM PDT 5.12 28 0 Normal
07/02/2026 04 AM PDT 5.12 28 0 Normal
07/02/2026 05 AM PDT 5.12 28 0 Normal
07/02/2026 06 AM PDT 5.12 28 0 Normal
07/02/2026 07 AM PDT 5.12 28 0 Normal
07/02/2026 08 AM PDT 5.12 28 0 Normal
07/02/2026 09 AM PDT 5.12 28 0 Normal
07/02/2026 10 AM PDT 5.12 28 0 Normal
07/02/2026 11 AM PDT 5.12 28 0 Normal
07/02/2026 12 PM PDT 5.12 28 0 Normal
07/02/2026 01 PM PDT 5.12 28 0 Normal
07/02/2026 02 PM PDT 5.12 28 0 Normal
07/02/2026 03 PM PDT 5.12 28 0 Normal
07/02/2026 04 PM PDT 5.12 28 0 Normal
07/02/2026 05 PM PDT 5.12 28 0 Normal
07/02/2026 06 PM PDT 5.12 28 0 Normal
07/02/2026 07 PM PDT 5.12 28 0 Normal
07/02/2026 08 PM PDT 5.12 28 0 Normal
07/02/2026 09 PM PDT 5.12 28 0 Normal
07/02/2026 10 PM PDT 5.12 28 0 Normal
07/02/2026 11 PM PDT 5.12 28 0 Normal
07/03/2026 12 AM PDT 5.12 28 0 Normal
07/03/2026 01 AM PDT 5.12 28 0 Normal
07/03/2026 02 AM PDT 5.12 28 0 Normal
07/03/2026 03 AM PDT 5.11 27 - Normal
07/03/2026 04 AM PDT 5.11 27 0 Normal
07/03/2026 05 AM PDT 5.11 27 0 Normal
07/03/2026 06 AM PDT 5.11 27 0 Normal
07/03/2026 07 AM PDT 5.11 27 0 Normal
07/03/2026 08 AM PDT 5.11 27 0 Normal
07/03/2026 09 AM PDT 5.11 27 0 Normal
07/03/2026 10 AM PDT 5.11 27 0 Normal
07/03/2026 11 AM PDT 5.11 27 0 Normal
07/03/2026 12 PM PDT 5.11 27 0 Normal
07/03/2026 01 PM PDT 5.11 27 0 Normal
07/03/2026 02 PM PDT 5.11 27 0 Normal
07/03/2026 03 PM PDT 5.11 27 0 Normal
07/03/2026 04 PM PDT 5.11 27 0 Normal
07/03/2026 05 PM PDT 5.11 27 0 Normal
07/03/2026 06 PM PDT 5.11 27 0 Normal
07/03/2026 07 PM PDT 5.11 27 0 Normal
07/03/2026 08 PM PDT 5.11 27 0 Normal
07/03/2026 09 PM PDT 5.11 27 0 Normal
07/03/2026 10 PM PDT 5.11 27 0 Normal
07/03/2026 11 PM PDT 5.11 27 0 Normal
07/04/2026 12 AM PDT 5.11 27 0 Normal
07/04/2026 01 AM PDT 5.11 27 0 Normal
07/04/2026 02 AM PDT 5.11 27 0 Normal
07/04/2026 03 AM PDT 5.11 27 0 Normal
07/04/2026 04 AM PDT 5.11 27 0 Normal
07/04/2026 05 AM PDT 5.11 27 0 Normal
07/04/2026 06 AM PDT 5.11 27 0 Normal
07/04/2026 07 AM PDT 5.11 27 0 Normal
07/04/2026 08 AM PDT 5.11 27 0 Normal
07/04/2026 09 AM PDT 5.11 27 0 Normal
07/04/2026 10 AM PDT 5.11 27 0 Normal
07/04/2026 11 AM PDT 5.11 27 0 Normal
07/04/2026 12 PM PDT 5.11 27 0 Normal
07/04/2026 01 PM PDT 5.11 27 0 Normal
07/04/2026 02 PM PDT 5.11 27 0 Normal
07/04/2026 03 PM PDT 5.11 27 0 Normal
07/04/2026 04 PM PDT 5.11 27 0 Normal
07/04/2026 05 PM PDT 5.11 27 0 Normal
07/04/2026 06 PM PDT 5.11 27 0 Normal
07/04/2026 07 PM PDT 5.11 27 0 Normal
07/04/2026 08 PM PDT 5.11 27 0 Normal
07/04/2026 09 PM PDT 5.11 27 0 Normal
07/04/2026 10 PM PDT 5.11 27 0 Normal
07/04/2026 11 PM PDT 5.11 27 0 Normal
07/05/2026 12 AM PDT 5.11 27 0 Normal
07/05/2026 01 AM PDT 5.11 27 0 Normal
07/05/2026 02 AM PDT 5.11 27 0 Normal
07/05/2026 03 AM PDT 5.11 27 0 Normal
07/05/2026 04 AM PDT 5.11 27 0 Normal
07/05/2026 05 AM PDT 5.11 27 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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