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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: | Apr 06 2026 at 1:10 PM PDT | Next Issuance: | Apr 07 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: 04/06/2026 at 01:13 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/02/2026 at 08:00 AM PDT
# Maximum Observed Stage: 5.60 Feet
# Maximum Observed Flow: 71 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/10/2026 at 09:00 PM PDT
# Maximum Forecast Stage: 6.54 Feet
# Maximum Forecast Flow: 214 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/01/2026 01 PM PDT 5.42 52 Normal
04/01/2026 02 PM PDT 5.42 52 0 Normal
04/01/2026 03 PM PDT 5.42 52 0 Normal
04/01/2026 04 PM PDT 5.41 51 - Normal
04/01/2026 05 PM PDT 5.41 51 0 Normal
04/01/2026 06 PM PDT 5.41 51 0 Normal
04/01/2026 07 PM PDT 5.41 51 0 Normal
04/01/2026 08 PM PDT 5.41 51 0 Normal
04/01/2026 09 PM PDT 5.41 51 0 Normal
04/01/2026 10 PM PDT 5.40 50 - Normal
04/01/2026 11 PM PDT 5.40 50 0 Normal
04/02/2026 12 AM PDT 5.40 50 0 Normal
04/02/2026 01 AM PDT 5.39 49 - Normal
04/02/2026 02 AM PDT 5.39 49 0 Normal
04/02/2026 03 AM PDT 5.40 50 + Normal
04/02/2026 04 AM PDT 5.48 58 + Normal
04/02/2026 05 AM PDT 5.56 67 + Normal
04/02/2026 06 AM PDT 5.60 71 + Normal
04/02/2026 07 AM PDT 5.60 71 0 Normal
04/02/2026 08 AM PDT 5.60 71 0 Normal
04/02/2026 09 AM PDT 5.56 67 - Normal
04/02/2026 10 AM PDT 5.52 62 - Normal
04/02/2026 11 AM PDT 5.50 60 - Normal
04/02/2026 12 PM PDT 5.49 59 - Normal
04/02/2026 01 PM PDT 5.51 61 + Normal
04/02/2026 02 PM PDT 5.52 62 + Normal
04/02/2026 03 PM PDT 5.53 63 + Normal
04/02/2026 04 PM PDT 5.54 64 + Normal
04/02/2026 05 PM PDT 5.53 63 - Normal
04/02/2026 06 PM PDT 5.51 61 - Normal
04/02/2026 07 PM PDT 5.49 59 - Normal
04/02/2026 08 PM PDT 5.46 56 - Normal
04/02/2026 09 PM PDT 5.44 54 - Normal
04/02/2026 10 PM PDT 5.43 53 - Normal
04/02/2026 11 PM PDT 5.42 52 - Normal
04/03/2026 12 AM PDT 5.42 52 0 Normal
04/03/2026 01 AM PDT 5.41 51 - Normal
04/03/2026 02 AM PDT 5.41 51 0 Normal
04/03/2026 03 AM PDT 5.40 50 - Normal
04/03/2026 04 AM PDT 5.40 50 0 Normal
04/03/2026 05 AM PDT 5.40 50 0 Normal
04/03/2026 06 AM PDT 5.40 50 0 Normal
04/03/2026 07 AM PDT 5.40 50 0 Normal
04/03/2026 08 AM PDT 5.40 50 0 Normal
04/03/2026 09 AM PDT 5.40 50 0 Normal
04/03/2026 10 AM PDT 5.41 51 + Normal
04/03/2026 11 AM PDT 5.40 50 - Normal
04/03/2026 12 PM PDT 5.40 50 0 Normal
04/03/2026 01 PM PDT 5.40 50 0 Normal
04/03/2026 02 PM PDT 5.40 50 0 Normal
04/03/2026 03 PM PDT 5.40 50 0 Normal
04/03/2026 04 PM PDT 5.42 52 + Normal
04/03/2026 05 PM PDT 5.41 51 - Normal
04/03/2026 06 PM PDT 5.39 49 - Normal
04/03/2026 07 PM PDT 5.38 48 - Normal
04/03/2026 08 PM PDT 5.39 49 + Normal
04/03/2026 09 PM PDT 5.38 48 - Normal
04/03/2026 10 PM PDT 5.38 48 0 Normal
04/03/2026 11 PM PDT 5.38 48 0 Normal
04/04/2026 12 AM PDT 5.38 48 0 Normal
04/04/2026 01 AM PDT 5.38 48 0 Normal
04/04/2026 02 AM PDT 5.38 48 0 Normal
04/04/2026 03 AM PDT 5.38 48 0 Normal
04/04/2026 04 AM PDT 5.38 48 0 Normal
04/04/2026 05 AM PDT 5.38 48 0 Normal
04/04/2026 06 AM PDT 5.39 49 + Normal
04/04/2026 07 AM PDT 5.39 49 0 Normal
04/04/2026 08 AM PDT 5.40 50 + Normal
04/04/2026 09 AM PDT 5.39 49 - Normal
04/04/2026 10 AM PDT 5.39 49 0 Normal
04/04/2026 11 AM PDT 5.39 49 0 Normal
04/04/2026 12 PM PDT 5.39 49 0 Normal
04/04/2026 01 PM PDT 5.40 50 + Normal
04/04/2026 02 PM PDT 5.40 50 0 Normal
04/04/2026 03 PM PDT 5.40 50 0 Normal
04/04/2026 04 PM PDT 5.39 49 - Normal
04/04/2026 05 PM PDT 5.39 49 0 Normal
04/04/2026 06 PM PDT 5.39 49 0 Normal
04/04/2026 07 PM PDT 5.38 48 - Normal
04/04/2026 08 PM PDT 5.38 48 0 Normal
04/04/2026 09 PM PDT 5.38 48 0 Normal
04/04/2026 10 PM PDT 5.38 48 0 Normal
04/04/2026 11 PM PDT 5.39 49 + Normal
04/05/2026 12 AM PDT 5.39 49 0 Normal
04/05/2026 01 AM PDT 5.38 48 - Normal
04/05/2026 02 AM PDT 5.38 48 0 Normal
04/05/2026 03 AM PDT 5.38 48 0 Normal
04/05/2026 04 AM PDT 5.38 48 0 Normal
04/05/2026 05 AM PDT 5.38 48 0 Normal
04/05/2026 06 AM PDT 5.38 48 0 Normal
04/05/2026 07 AM PDT 5.38 48 0 Normal
04/05/2026 08 AM PDT 5.40 50 + Normal
04/05/2026 09 AM PDT 5.39 49 - Normal
04/05/2026 10 AM PDT 5.39 49 0 Normal
04/05/2026 11 AM PDT 5.39 49 0 Normal
04/05/2026 12 PM PDT 5.39 49 0 Normal
04/05/2026 01 PM PDT 5.39 49 0 Normal
04/05/2026 02 PM PDT 5.39 49 0 Normal
04/05/2026 03 PM PDT 5.39 49 0 Normal
04/05/2026 04 PM PDT 5.39 49 0 Normal
04/05/2026 05 PM PDT 5.39 49 0 Normal
04/05/2026 06 PM PDT 5.39 49 0 Normal
04/05/2026 07 PM PDT 5.38 48 - Normal
04/05/2026 08 PM PDT 5.38 48 0 Normal
04/05/2026 09 PM PDT 5.38 48 0 Normal
04/05/2026 10 PM PDT 5.38 48 0 Normal
04/05/2026 11 PM PDT 5.38 48 0 Normal
04/06/2026 12 AM PDT 5.38 48 0 Normal
04/06/2026 01 AM PDT 5.38 48 0 Normal
04/06/2026 02 AM PDT 5.38 48 0 Normal
04/06/2026 03 AM PDT 5.37 47 - Normal
04/06/2026 04 AM PDT 5.37 47 0 Normal
04/06/2026 05 AM PDT 5.37 47 0 Normal
04/06/2026 06 AM PDT 5.38 48 + Normal
04/06/2026 07 AM PDT 5.37 47 - Normal
04/06/2026 08 AM PDT 5.37 47 0 Normal
04/06/2026 09 AM PDT 5.38 48 + Normal
04/06/2026 10 AM PDT 5.38 48 0 Normal
04/06/2026 11 AM PDT 5.38 48 0 Normal
04/06/2026 12 PM PDT 5.39 49 + Normal
04/06/2026 01 PM PDT 5.39 49 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/06/2026 02 PM PDT 5.39 49 Normal
04/06/2026 03 PM PDT 5.39 49 0 Normal
04/06/2026 04 PM PDT 5.39 49 0 Normal
04/06/2026 05 PM PDT 5.39 49 0 Normal
04/06/2026 06 PM PDT 5.39 49 0 Normal
04/06/2026 07 PM PDT 5.39 49 0 Normal
04/06/2026 08 PM PDT 5.39 49 0 Normal
04/06/2026 09 PM PDT 5.39 49 0 Normal
04/06/2026 10 PM PDT 5.39 49 0 Normal
04/06/2026 11 PM PDT 5.39 49 0 Normal
04/07/2026 12 AM PDT 5.39 49 0 Normal
04/07/2026 01 AM PDT 5.39 49 0 Normal
04/07/2026 02 AM PDT 5.39 49 0 Normal
04/07/2026 03 AM PDT 5.39 49 0 Normal
04/07/2026 04 AM PDT 5.39 49 0 Normal
04/07/2026 05 AM PDT 5.39 49 0 Normal
04/07/2026 06 AM PDT 5.39 49 0 Normal
04/07/2026 07 AM PDT 5.39 49 0 Normal
04/07/2026 08 AM PDT 5.39 49 0 Normal
04/07/2026 09 AM PDT 5.39 49 0 Normal
04/07/2026 10 AM PDT 5.39 49 0 Normal
04/07/2026 11 AM PDT 5.39 49 0 Normal
04/07/2026 12 PM PDT 5.39 49 0 Normal
04/07/2026 01 PM PDT 5.39 49 0 Normal
04/07/2026 02 PM PDT 5.39 49 0 Normal
04/07/2026 03 PM PDT 5.39 49 0 Normal
04/07/2026 04 PM PDT 5.39 49 0 Normal
04/07/2026 05 PM PDT 5.39 49 0 Normal
04/07/2026 06 PM PDT 5.39 49 0 Normal
04/07/2026 07 PM PDT 5.39 49 0 Normal
04/07/2026 08 PM PDT 5.39 49 0 Normal
04/07/2026 09 PM PDT 5.39 49 0 Normal
04/07/2026 10 PM PDT 5.39 49 0 Normal
04/07/2026 11 PM PDT 5.39 49 0 Normal
04/08/2026 12 AM PDT 5.39 49 0 Normal
04/08/2026 01 AM PDT 5.39 49 0 Normal
04/08/2026 02 AM PDT 5.39 49 0 Normal
04/08/2026 03 AM PDT 5.39 49 0 Normal
04/08/2026 04 AM PDT 5.39 49 0 Normal
04/08/2026 05 AM PDT 5.39 49 0 Normal
04/08/2026 06 AM PDT 5.39 49 0 Normal
04/08/2026 07 AM PDT 5.39 49 0 Normal
04/08/2026 08 AM PDT 5.39 49 0 Normal
04/08/2026 09 AM PDT 5.39 49 0 Normal
04/08/2026 10 AM PDT 5.39 49 0 Normal
04/08/2026 11 AM PDT 5.39 49 0 Normal
04/08/2026 12 PM PDT 5.39 49 0 Normal
04/08/2026 01 PM PDT 5.39 49 0 Normal
04/08/2026 02 PM PDT 5.39 49 0 Normal
04/08/2026 03 PM PDT 5.39 49 0 Normal
04/08/2026 04 PM PDT 5.39 49 0 Normal
04/08/2026 05 PM PDT 5.39 49 0 Normal
04/08/2026 06 PM PDT 5.39 49 0 Normal
04/08/2026 07 PM PDT 5.39 49 0 Normal
04/08/2026 08 PM PDT 5.39 49 0 Normal
04/08/2026 09 PM PDT 5.39 49 0 Normal
04/08/2026 10 PM PDT 5.39 49 0 Normal
04/08/2026 11 PM PDT 5.39 49 0 Normal
04/09/2026 12 AM PDT 5.39 49 0 Normal
04/09/2026 01 AM PDT 5.39 49 0 Normal
04/09/2026 02 AM PDT 5.39 49 0 Normal
04/09/2026 03 AM PDT 5.39 49 0 Normal
04/09/2026 04 AM PDT 5.39 49 0 Normal
04/09/2026 05 AM PDT 5.39 49 0 Normal
04/09/2026 06 AM PDT 5.39 49 0 Normal
04/09/2026 07 AM PDT 5.39 49 0 Normal
04/09/2026 08 AM PDT 5.39 49 0 Normal
04/09/2026 09 AM PDT 5.39 49 0 Normal
04/09/2026 10 AM PDT 5.39 49 0 Normal
04/09/2026 11 AM PDT 5.39 49 0 Normal
04/09/2026 12 PM PDT 5.39 49 0 Normal
04/09/2026 01 PM PDT 5.39 49 0 Normal
04/09/2026 02 PM PDT 5.39 49 0 Normal
04/09/2026 03 PM PDT 5.39 49 0 Normal
04/09/2026 04 PM PDT 5.39 49 0 Normal
04/09/2026 05 PM PDT 5.39 49 0 Normal
04/09/2026 06 PM PDT 5.39 49 0 Normal
04/09/2026 07 PM PDT 5.39 49 0 Normal
04/09/2026 08 PM PDT 5.40 50 + Normal
04/09/2026 09 PM PDT 5.41 51 + Normal
04/09/2026 10 PM PDT 5.43 53 + Normal
04/09/2026 11 PM PDT 5.45 55 + Normal
04/10/2026 12 AM PDT 5.47 57 + Normal
04/10/2026 01 AM PDT 5.49 59 + Normal
04/10/2026 02 AM PDT 5.49 59 0 Normal
04/10/2026 03 AM PDT 5.49 59 0 Normal
04/10/2026 04 AM PDT 5.50 60 + Normal
04/10/2026 05 AM PDT 5.50 60 0 Normal
04/10/2026 06 AM PDT 5.50 60 0 Normal
04/10/2026 07 AM PDT 5.51 61 + Normal
04/10/2026 08 AM PDT 5.52 62 + Normal
04/10/2026 09 AM PDT 5.54 64 + Normal
04/10/2026 10 AM PDT 5.59 70 + Normal
04/10/2026 11 AM PDT 5.66 78 + Normal
04/10/2026 12 PM PDT 5.72 85 + Normal
04/10/2026 01 PM PDT 5.77 91 + Normal
04/10/2026 02 PM PDT 5.81 96 + Normal
04/10/2026 03 PM PDT 5.88 106 + Normal
04/10/2026 04 PM PDT 6.01 124 + Normal
04/10/2026 05 PM PDT 6.19 152 + Normal
04/10/2026 06 PM PDT 6.34 177 + Normal
04/10/2026 07 PM PDT 6.46 199 + Normal
04/10/2026 08 PM PDT 6.53 212 + Normal
04/10/2026 09 PM PDT 6.54 214 + Normal
04/10/2026 10 PM PDT 6.47 201 - Normal
04/10/2026 11 PM PDT 6.33 175 - Normal
04/11/2026 12 AM PDT 6.17 148 - Normal
04/11/2026 01 AM PDT 6.02 126 - Normal
04/11/2026 02 AM PDT 5.90 109 - Normal
04/11/2026 03 AM PDT 5.81 96 - Normal
04/11/2026 04 AM PDT 5.74 88 - Normal
04/11/2026 05 AM PDT 5.68 80 - 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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