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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 08 2026 at 1:44 PM PDT | Next Issuance: | Apr 09 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: 04/08/2026 at 01:46 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/07/2026 at 04:00 PM PDT
# Maximum Observed Stage: 5.42 Feet
# Maximum Observed Flow: 52 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/10/2026 at 10:00 AM PDT
# Maximum Forecast Stage: 6.96 Feet
# Maximum Forecast Flow: 306 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/03/2026 01 PM PDT 5.40 50 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
04/06/2026 02 PM PDT 5.38 48 - Normal
04/06/2026 03 PM PDT 5.39 49 + Normal
04/06/2026 04 PM PDT 5.39 49 0 Normal
04/06/2026 05 PM PDT 5.38 48 - Normal
04/06/2026 06 PM PDT 5.37 47 - Normal
04/06/2026 07 PM PDT 5.37 47 0 Normal
04/06/2026 08 PM PDT 5.37 47 0 Normal
04/06/2026 09 PM PDT 5.37 47 0 Normal
04/06/2026 10 PM PDT 5.37 47 0 Normal
04/06/2026 11 PM PDT 5.37 47 0 Normal
04/07/2026 12 AM PDT 5.37 47 0 Normal
04/07/2026 01 AM PDT 5.38 48 + Normal
04/07/2026 02 AM PDT 5.37 47 - Normal
04/07/2026 03 AM PDT 5.37 47 0 Normal
04/07/2026 04 AM PDT 5.37 47 0 Normal
04/07/2026 05 AM PDT 5.37 47 0 Normal
04/07/2026 06 AM PDT 5.37 47 0 Normal
04/07/2026 07 AM PDT 5.37 47 0 Normal
04/07/2026 08 AM PDT 5.37 47 0 Normal
04/07/2026 09 AM PDT 5.37 47 0 Normal
04/07/2026 10 AM PDT 5.38 48 + Normal
04/07/2026 11 AM PDT 5.38 48 0 Normal
04/07/2026 12 PM PDT 5.38 48 0 Normal
04/07/2026 01 PM PDT 5.38 48 0 Normal
04/07/2026 02 PM PDT 5.39 49 + Normal
04/07/2026 03 PM PDT 5.40 50 + Normal
04/07/2026 04 PM PDT 5.42 52 + Normal
04/07/2026 05 PM PDT 5.40 50 - Normal
04/07/2026 06 PM PDT 5.39 49 - Normal
04/07/2026 07 PM PDT 5.39 49 0 Normal
04/07/2026 08 PM PDT 5.38 48 - Normal
04/07/2026 09 PM PDT 5.38 48 0 Normal
04/07/2026 10 PM PDT 5.38 48 0 Normal
04/07/2026 11 PM PDT 5.37 47 - Normal
04/08/2026 12 AM PDT 5.38 48 + Normal
04/08/2026 01 AM PDT 5.38 48 0 Normal
04/08/2026 02 AM PDT 5.37 47 - Normal
04/08/2026 03 AM PDT 5.38 48 + Normal
04/08/2026 04 AM PDT 5.38 48 0 Normal
04/08/2026 05 AM PDT 5.37 47 - Normal
04/08/2026 06 AM PDT 5.38 48 + Normal
04/08/2026 07 AM PDT 5.38 48 0 Normal
04/08/2026 08 AM PDT 5.38 48 0 Normal
04/08/2026 09 AM PDT 5.38 48 0 Normal
04/08/2026 10 AM PDT 5.38 48 0 Normal
04/08/2026 11 AM PDT 5.38 48 0 Normal
04/08/2026 12 PM PDT 5.38 48 0 Normal
04/08/2026 01 PM PDT 5.38 48 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/08/2026 02 PM PDT 5.38 48 Normal
04/08/2026 03 PM PDT 5.38 48 0 Normal
04/08/2026 04 PM PDT 5.38 48 0 Normal
04/08/2026 05 PM PDT 5.38 48 0 Normal
04/08/2026 06 PM PDT 5.38 48 0 Normal
04/08/2026 07 PM PDT 5.38 48 0 Normal
04/08/2026 08 PM PDT 5.38 48 0 Normal
04/08/2026 09 PM PDT 5.38 48 0 Normal
04/08/2026 10 PM PDT 5.38 48 0 Normal
04/08/2026 11 PM PDT 5.38 48 0 Normal
04/09/2026 12 AM PDT 5.38 48 0 Normal
04/09/2026 01 AM PDT 5.38 48 0 Normal
04/09/2026 02 AM PDT 5.38 48 0 Normal
04/09/2026 03 AM PDT 5.38 48 0 Normal
04/09/2026 04 AM PDT 5.38 48 0 Normal
04/09/2026 05 AM PDT 5.38 48 0 Normal
04/09/2026 06 AM PDT 5.38 48 0 Normal
04/09/2026 07 AM PDT 5.38 48 0 Normal
04/09/2026 08 AM PDT 5.38 48 0 Normal
04/09/2026 09 AM PDT 5.38 48 0 Normal
04/09/2026 10 AM PDT 5.38 48 0 Normal
04/09/2026 11 AM PDT 5.38 48 0 Normal
04/09/2026 12 PM PDT 5.38 48 0 Normal
04/09/2026 01 PM PDT 5.38 48 0 Normal
04/09/2026 02 PM PDT 5.38 48 0 Normal
04/09/2026 03 PM PDT 5.38 48 0 Normal
04/09/2026 04 PM PDT 5.38 48 0 Normal
04/09/2026 05 PM PDT 5.38 48 0 Normal
04/09/2026 06 PM PDT 5.38 48 0 Normal
04/09/2026 07 PM PDT 5.38 48 0 Normal
04/09/2026 08 PM PDT 5.38 48 0 Normal
04/09/2026 09 PM PDT 5.38 48 0 Normal
04/09/2026 10 PM PDT 5.38 48 0 Normal
04/09/2026 11 PM PDT 5.38 48 0 Normal
04/10/2026 12 AM PDT 5.38 48 0 Normal
04/10/2026 01 AM PDT 5.38 48 0 Normal
04/10/2026 02 AM PDT 5.38 48 0 Normal
04/10/2026 03 AM PDT 5.38 48 0 Normal
04/10/2026 04 AM PDT 5.39 49 + Normal
04/10/2026 05 AM PDT 5.45 55 + Normal
04/10/2026 06 AM PDT 5.62 73 + Normal
04/10/2026 07 AM PDT 5.93 113 + Normal
04/10/2026 08 AM PDT 6.43 193 + Normal
04/10/2026 09 AM PDT 6.83 276 + Normal
04/10/2026 10 AM PDT 6.96 306 + Normal
04/10/2026 11 AM PDT 6.93 299 - Normal
04/10/2026 12 PM PDT 6.83 276 - Normal
04/10/2026 01 PM PDT 6.70 247 - Normal
04/10/2026 02 PM PDT 6.62 230 - Normal
04/10/2026 03 PM PDT 6.58 222 - Normal
04/10/2026 04 PM PDT 6.54 214 - Normal
04/10/2026 05 PM PDT 6.48 203 - Normal
04/10/2026 06 PM PDT 6.42 191 - Normal
04/10/2026 07 PM PDT 6.37 182 - Normal
04/10/2026 08 PM PDT 6.34 177 - Normal
04/10/2026 09 PM PDT 6.30 170 - Normal
04/10/2026 10 PM PDT 6.22 157 - Normal
04/10/2026 11 PM PDT 6.10 138 - Normal
04/11/2026 12 AM PDT 5.97 118 - Normal
04/11/2026 01 AM PDT 5.87 104 - Normal
04/11/2026 02 AM PDT 5.79 94 - Normal
04/11/2026 03 AM PDT 5.76 90 - Normal
04/11/2026 04 AM PDT 5.76 90 0 Normal
04/11/2026 05 AM PDT 5.80 95 + Normal
04/11/2026 06 AM PDT 5.85 102 + Normal
04/11/2026 07 AM PDT 5.89 107 + Normal
04/11/2026 08 AM PDT 5.92 111 + Normal
04/11/2026 09 AM PDT 5.95 115 + Normal
04/11/2026 10 AM PDT 5.98 120 + Normal
04/11/2026 11 AM PDT 6.03 127 + Normal
04/11/2026 12 PM PDT 6.06 131 + Normal
04/11/2026 01 PM PDT 6.09 136 + Normal
04/11/2026 02 PM PDT 6.11 139 + Normal
04/11/2026 03 PM PDT 6.14 144 + Normal
04/11/2026 04 PM PDT 6.20 153 + Normal
04/11/2026 05 PM PDT 6.28 167 + Normal
04/11/2026 06 PM PDT 6.36 181 + Normal
04/11/2026 07 PM PDT 6.41 190 + Normal
04/11/2026 08 PM PDT 6.46 199 + Normal
04/11/2026 09 PM PDT 6.50 206 + Normal
04/11/2026 10 PM PDT 6.55 216 + Normal
04/11/2026 11 PM PDT 6.61 228 + Normal
04/12/2026 12 AM PDT 6.66 239 + Normal
04/12/2026 01 AM PDT 6.71 249 + Normal
04/12/2026 02 AM PDT 6.73 254 + Normal
04/12/2026 03 AM PDT 6.73 254 0 Normal
04/12/2026 04 AM PDT 6.70 247 - Normal
04/12/2026 05 AM PDT 6.64 235 - Normal
04/12/2026 06 AM PDT 6.58 222 - Normal
04/12/2026 07 AM PDT 6.52 210 - Normal
04/12/2026 08 AM PDT 6.48 203 - Normal
04/12/2026 09 AM PDT 6.44 195 - Normal
04/12/2026 10 AM PDT 6.37 182 - Normal
04/12/2026 11 AM PDT 6.29 168 - Normal
04/12/2026 12 PM PDT 6.21 155 - Normal
04/12/2026 01 PM PDT 6.13 142 - Normal
04/12/2026 02 PM PDT 6.08 134 - Normal
04/12/2026 03 PM PDT 6.04 128 - Normal
04/12/2026 04 PM PDT 6.02 126 - Normal
04/12/2026 05 PM PDT 6.00 123 - Normal
04/12/2026 06 PM PDT 5.99 121 - Normal
04/12/2026 07 PM PDT 5.98 120 - Normal
04/12/2026 08 PM PDT 5.97 118 - Normal
04/12/2026 09 PM PDT 5.94 114 - Normal
04/12/2026 10 PM PDT 5.88 106 - Normal
04/12/2026 11 PM PDT 5.78 93 - Normal
04/13/2026 12 AM PDT 5.68 80 - Normal
04/13/2026 01 AM PDT 5.59 70 - Normal
04/13/2026 02 AM PDT 5.52 62 - Normal
04/13/2026 03 AM PDT 5.48 58 - Normal
04/13/2026 04 AM PDT 5.45 55 - Normal
04/13/2026 05 AM PDT 5.43 53 - 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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