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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 10 2026 at 1:47 PM PDT | Next Issuance: | Apr 11 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: 04/10/2026 at 01:49 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/10/2026 at 01:00 PM PDT
# Maximum Observed Stage: 6.25 Feet
# Maximum Observed Flow: 162 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/12/2026 at 12:00 AM PDT
# Maximum Forecast Stage: 8.44 Feet
# Maximum Forecast Flow: 759 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/05/2026 01 PM PDT 5.39 49 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
04/08/2026 02 PM PDT 5.38 48 0 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 5.37 47 - Normal
04/08/2026 11 PM PDT 5.38 48 + Normal
04/09/2026 12 AM PDT 5.37 47 - Normal
04/09/2026 01 AM PDT 5.38 48 + Normal
04/09/2026 02 AM PDT 5.37 47 - Normal
04/09/2026 03 AM PDT 5.38 48 + Normal
04/09/2026 04 AM PDT 5.37 47 - Normal
04/09/2026 05 AM PDT 5.38 48 + Normal
04/09/2026 06 AM PDT 5.37 47 - Normal
04/09/2026 07 AM PDT 5.37 47 0 Normal
04/09/2026 08 AM PDT 5.38 48 + Normal
04/09/2026 09 AM PDT 5.37 47 - Normal
04/09/2026 10 AM PDT 5.38 48 + 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 5.37 47 - Normal
04/09/2026 03 PM PDT 5.37 47 0 Normal
04/09/2026 04 PM PDT 5.37 47 0 Normal
04/09/2026 05 PM PDT 5.37 47 0 Normal
04/09/2026 06 PM PDT 5.37 47 0 Normal
04/09/2026 07 PM PDT 5.36 46 - Normal
04/09/2026 08 PM PDT 5.36 46 0 Normal
04/09/2026 09 PM PDT 5.36 46 0 Normal
04/09/2026 10 PM PDT 5.36 46 0 Normal
04/09/2026 11 PM PDT 5.36 46 0 Normal
04/10/2026 12 AM PDT 5.36 46 0 Normal
04/10/2026 01 AM PDT 5.36 46 0 Normal
04/10/2026 02 AM PDT 5.37 47 + Normal
04/10/2026 03 AM PDT 5.36 46 - Normal
04/10/2026 04 AM PDT 5.37 47 + Normal
04/10/2026 05 AM PDT 5.36 46 - Normal
04/10/2026 06 AM PDT 5.36 46 0 Normal
04/10/2026 07 AM PDT 5.37 47 + Normal
04/10/2026 08 AM PDT 5.37 47 0 Normal
04/10/2026 09 AM PDT 5.54 64 + Normal
04/10/2026 10 AM PDT 5.61 72 + Normal
04/10/2026 11 AM PDT 5.74 88 + Normal
04/10/2026 12 PM PDT 5.92 111 + Normal
04/10/2026 01 PM PDT 6.25 162 + Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/10/2026 02 PM PDT 6.44 195 Normal
04/10/2026 03 PM PDT 6.51 208 + Normal
04/10/2026 04 PM PDT 6.46 199 - Normal
04/10/2026 05 PM PDT 6.31 172 - Normal
04/10/2026 06 PM PDT 6.08 134 - Normal
04/10/2026 07 PM PDT 5.82 98 - Normal
04/10/2026 08 PM PDT 5.62 73 - Normal
04/10/2026 09 PM PDT 5.50 60 - Normal
04/10/2026 10 PM PDT 5.43 53 - Normal
04/10/2026 11 PM PDT 5.42 52 - Normal
04/11/2026 12 AM PDT 5.48 58 + Normal
04/11/2026 01 AM PDT 5.56 67 + Normal
04/11/2026 02 AM PDT 5.62 73 + Normal
04/11/2026 03 AM PDT 5.64 76 + Normal
04/11/2026 04 AM PDT 5.67 79 + Normal
04/11/2026 05 AM PDT 5.71 84 + Normal
04/11/2026 06 AM PDT 5.72 85 + Normal
04/11/2026 07 AM PDT 5.66 78 - Normal
04/11/2026 08 AM PDT 5.60 71 - Normal
04/11/2026 09 AM PDT 5.54 64 - Normal
04/11/2026 10 AM PDT 5.51 61 - Normal
04/11/2026 11 AM PDT 5.51 61 0 Normal
04/11/2026 12 PM PDT 5.55 65 + Normal
04/11/2026 01 PM PDT 5.65 77 + Normal
04/11/2026 02 PM PDT 5.76 90 + Normal
04/11/2026 03 PM PDT 5.86 103 + Normal
04/11/2026 04 PM PDT 5.93 113 + Normal
04/11/2026 05 PM PDT 5.92 111 - Normal
04/11/2026 06 PM PDT 5.85 102 - Normal
04/11/2026 07 PM PDT 5.76 90 - Normal
04/11/2026 08 PM PDT 5.73 86 - Normal
04/11/2026 09 PM PDT 5.86 103 + Normal
04/11/2026 10 PM PDT 6.81 271 + Normal
04/11/2026 11 PM PDT 7.95 586 + Normal
04/12/2026 12 AM PDT 8.44 759 + Normal
04/12/2026 01 AM PDT 8.23 682 - Normal
04/12/2026 02 AM PDT 7.92 576 - Normal
04/12/2026 03 AM PDT 7.69 503 - Normal
04/12/2026 04 AM PDT 7.59 473 - Normal
04/12/2026 05 AM PDT 7.49 444 - Normal
04/12/2026 06 AM PDT 7.37 411 - Normal
04/12/2026 07 AM PDT 7.25 378 - Normal
04/12/2026 08 AM PDT 7.10 340 - Normal
04/12/2026 09 AM PDT 6.97 308 - Normal
04/12/2026 10 AM PDT 6.87 285 - Normal
04/12/2026 11 AM PDT 6.78 265 - Normal
04/12/2026 12 PM PDT 6.70 247 - Normal
04/12/2026 01 PM PDT 6.61 228 - Normal
04/12/2026 02 PM PDT 6.53 212 - Normal
04/12/2026 03 PM PDT 6.45 197 - Normal
04/12/2026 04 PM PDT 6.40 188 - Normal
04/12/2026 05 PM PDT 6.37 182 - Normal
04/12/2026 06 PM PDT 6.35 179 - Normal
04/12/2026 07 PM PDT 6.33 175 - Normal
04/12/2026 08 PM PDT 6.28 167 - Normal
04/12/2026 09 PM PDT 6.20 153 - Normal
04/12/2026 10 PM PDT 6.08 134 - Normal
04/12/2026 11 PM PDT 5.94 114 - Normal
04/13/2026 12 AM PDT 5.81 96 - Normal
04/13/2026 01 AM PDT 5.70 83 - Normal
04/13/2026 02 AM PDT 5.61 72 - Normal
04/13/2026 03 AM PDT 5.54 64 - Normal
04/13/2026 04 AM PDT 5.47 57 - Normal
04/13/2026 05 AM PDT 5.42 52 - Normal
04/13/2026 06 AM PDT 5.37 47 - Normal
04/13/2026 07 AM PDT 5.34 45 - Normal
04/13/2026 08 AM PDT 5.32 43 - Normal
04/13/2026 09 AM PDT 5.30 41 - Normal
04/13/2026 10 AM PDT 5.29 40 - Normal
04/13/2026 11 AM PDT 5.28 39 - Normal
04/13/2026 12 PM PDT 5.27 38 - Normal
04/13/2026 01 PM PDT 5.26 38 - Normal
04/13/2026 02 PM PDT 5.26 38 0 Normal
04/13/2026 03 PM PDT 5.25 37 - Normal
04/13/2026 04 PM PDT 5.25 37 0 Normal
04/13/2026 05 PM PDT 5.25 37 0 Normal
04/13/2026 06 PM PDT 5.25 37 0 Normal
04/13/2026 07 PM PDT 5.25 37 0 Normal
04/13/2026 08 PM PDT 5.25 37 0 Normal
04/13/2026 09 PM PDT 5.25 37 0 Normal
04/13/2026 10 PM PDT 5.25 37 0 Normal
04/13/2026 11 PM PDT 5.25 37 0 Normal
04/14/2026 12 AM PDT 5.25 37 0 Normal
04/14/2026 01 AM PDT 5.25 37 0 Normal
04/14/2026 02 AM PDT 5.25 37 0 Normal
04/14/2026 03 AM PDT 5.25 37 0 Normal
04/14/2026 04 AM PDT 5.25 37 0 Normal
04/14/2026 05 AM PDT 5.25 37 0 Normal
04/14/2026 06 AM PDT 5.25 37 0 Normal
04/14/2026 07 AM PDT 5.25 37 0 Normal
04/14/2026 08 AM PDT 5.25 37 0 Normal
04/14/2026 09 AM PDT 5.25 37 0 Normal
04/14/2026 10 AM PDT 5.24 36 - Normal
04/14/2026 11 AM PDT 5.24 36 0 Normal
04/14/2026 12 PM PDT 5.24 36 0 Normal
04/14/2026 01 PM PDT 5.24 36 0 Normal
04/14/2026 02 PM PDT 5.24 36 0 Normal
04/14/2026 03 PM PDT 5.24 36 0 Normal
04/14/2026 04 PM PDT 5.24 36 0 Normal
04/14/2026 05 PM PDT 5.24 36 0 Normal
04/14/2026 06 PM PDT 5.24 36 0 Normal
04/14/2026 07 PM PDT 5.24 36 0 Normal
04/14/2026 08 PM PDT 5.24 36 0 Normal
04/14/2026 09 PM PDT 5.24 36 0 Normal
04/14/2026 10 PM PDT 5.24 36 0 Normal
04/14/2026 11 PM PDT 5.24 36 0 Normal
04/15/2026 12 AM PDT 5.24 36 0 Normal
04/15/2026 01 AM PDT 5.24 36 0 Normal
04/15/2026 02 AM PDT 5.24 36 0 Normal
04/15/2026 03 AM PDT 5.24 36 0 Normal
04/15/2026 04 AM PDT 5.24 36 0 Normal
04/15/2026 05 AM PDT 5.24 36 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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