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GUADALUPE RIVER - SAN JOSE AT US HIGHWAY 101 (GSJC1)
| Latitude: 37.37º N | Longitude: 121.93º W | Elevation: 72 Feet | | | |
| Location: Santa Clara County in California | Bulletin Group: Central Coast | River Group: South Bay |
| Issuance Time: | Dec 26 2025 at 8:08 AM PST | Next Issuance: | Dec 26 2025 at 3:00 PM PST
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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: 12/26/2025 at 08:10 AM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 12/25/2025 at 08:00 AM PST
# Maximum Observed Stage: 13.13 Feet
# Maximum Observed Flow: 3354 cfs
#
# Earliest Date & Time of Maximum Forecast: 12/26/2025 at 08:00 AM PST
# Maximum Forecast Stage: 7.62 Feet
# Maximum Forecast Flow: 429 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
12/21/2025 08 AM PST 5.24 34 Normal
12/21/2025 09 AM PST 5.25 34 + Normal
12/21/2025 10 AM PST 5.24 34 - Normal
12/21/2025 11 AM PST 5.21 31 - Normal
12/21/2025 12 PM PST 5.23 33 + Normal
12/21/2025 01 PM PST 5.23 33 0 Normal
12/21/2025 02 PM PST 5.24 34 + Normal
12/21/2025 03 PM PST 5.23 33 - Normal
12/21/2025 04 PM PST 5.24 34 + Normal
12/21/2025 05 PM PST 5.23 33 - Normal
12/21/2025 06 PM PST 5.23 33 0 Normal
12/21/2025 07 PM PST 5.23 33 0 Normal
12/21/2025 08 PM PST 5.23 33 0 Normal
12/21/2025 09 PM PST 5.24 34 + Normal
12/21/2025 10 PM PST 5.24 34 0 Normal
12/21/2025 11 PM PST 5.23 33 - Normal
12/22/2025 12 AM PST 5.23 33 0 Normal
12/22/2025 01 AM PST 5.24 34 + Normal
12/22/2025 02 AM PST 5.24 34 0 Normal
12/22/2025 03 AM PST 5.24 34 0 Normal
12/22/2025 04 AM PST 5.24 34 0 Normal
12/22/2025 05 AM PST 5.24 34 0 Normal
12/22/2025 06 AM PST 5.23 33 - Normal
12/22/2025 07 AM PST 5.23 33 0 Normal
12/22/2025 08 AM PST 5.23 33 0 Normal
12/22/2025 09 AM PST 5.23 33 0 Normal
12/22/2025 10 AM PST 5.23 33 0 Normal
12/22/2025 11 AM PST 5.23 33 0 Normal
12/22/2025 12 PM PST 5.24 34 + Normal
12/22/2025 01 PM PST 5.25 34 + Normal
12/22/2025 02 PM PST 5.27 36 + Normal
12/22/2025 03 PM PST 5.26 35 - Normal
12/22/2025 04 PM PST 5.26 35 0 Normal
12/22/2025 05 PM PST 5.26 35 0 Normal
12/22/2025 06 PM PST 5.26 35 0 Normal
12/22/2025 07 PM PST 5.26 35 0 Normal
12/22/2025 08 PM PST 5.25 34 - Normal
12/22/2025 09 PM PST 5.25 34 0 Normal
12/22/2025 10 PM PST 5.25 34 0 Normal
12/22/2025 11 PM PST 5.25 34 0 Normal
12/23/2025 12 AM PST 5.25 34 0 Normal
12/23/2025 01 AM PST 5.25 34 0 Normal
12/23/2025 02 AM PST 5.24 34 - Normal
12/23/2025 03 AM PST 5.24 34 0 Normal
12/23/2025 04 AM PST 5.24 34 0 Normal
12/23/2025 05 AM PST 5.24 34 0 Normal
12/23/2025 06 AM PST 5.24 34 0 Normal
12/23/2025 07 AM PST 5.24 34 0 Normal
12/23/2025 08 AM PST 5.24 34 0 Normal
12/23/2025 09 AM PST 5.24 34 0 Normal
12/23/2025 10 AM PST 5.24 34 0 Normal
12/23/2025 11 AM PST 5.24 34 0 Normal
12/23/2025 12 PM PST 5.24 34 0 Normal
12/23/2025 01 PM PST 5.24 34 0 Normal
12/23/2025 02 PM PST 5.23 33 - Normal
12/23/2025 03 PM PST 5.24 34 + Normal
12/23/2025 04 PM PST 5.24 34 0 Normal
12/23/2025 05 PM PST 5.24 34 0 Normal
12/23/2025 06 PM PST 5.24 34 0 Normal
12/23/2025 07 PM PST 5.23 33 - Normal
12/23/2025 08 PM PST 5.24 34 + Normal
12/23/2025 09 PM PST 5.24 34 0 Normal
12/23/2025 10 PM PST 5.24 34 0 Normal
12/23/2025 11 PM PST 5.24 34 0 Normal
12/24/2025 12 AM PST 5.24 34 0 Normal
12/24/2025 01 AM PST 5.25 34 + Normal
12/24/2025 02 AM PST 5.25 34 0 Normal
12/24/2025 03 AM PST 5.35 42 + Normal
12/24/2025 04 AM PST 6.10 126 + Normal
12/24/2025 05 AM PST 6.85 252 + Normal
12/24/2025 06 AM PST 7.64 434 + Normal
12/24/2025 07 AM PST 8.35 640 + Normal
12/24/2025 08 AM PST 8.79 789 + Normal
12/24/2025 09 AM PST 8.53 699 - Normal
12/24/2025 10 AM PST 8.12 569 - Normal
12/24/2025 11 AM PST 7.60 424 - Normal
12/24/2025 12 PM PST 7.18 322 - Normal
12/24/2025 01 PM PST 6.85 252 - Normal
12/24/2025 02 PM PST 6.55 196 - Normal
12/24/2025 03 PM PST 6.32 159 - Normal
12/24/2025 04 PM PST 6.12 129 - Normal
12/24/2025 05 PM PST 5.96 108 - Normal
12/24/2025 06 PM PST 5.84 93 - Normal
12/24/2025 07 PM PST 6.17 136 + Normal
12/24/2025 08 PM PST 6.31 157 + Normal
12/24/2025 09 PM PST 6.10 126 - Normal
12/24/2025 10 PM PST 6.02 116 - Normal
12/24/2025 11 PM PST 6.01 114 - Normal
12/25/2025 12 AM PST 6.03 117 + Normal
12/25/2025 01 AM PST 6.04 118 + Normal
12/25/2025 02 AM PST 5.98 110 - Normal
12/25/2025 03 AM PST 6.20 141 + Normal
12/25/2025 04 AM PST 7.49 396 + Normal
12/25/2025 05 AM PST 9.37 1009 + Normal
12/25/2025 06 AM PST 10.86 1731 + Normal
12/25/2025 07 AM PST 12.44 2803 + Normal
12/25/2025 08 AM PST 13.13 3354 + Normal
12/25/2025 09 AM PST 12.85 3124 - Normal
12/25/2025 10 AM PST 11.98 2463 - Normal
12/25/2025 11 AM PST 10.81 1701 - Normal
12/25/2025 12 PM PST 9.84 1209 - Normal
12/25/2025 01 PM PST 9.15 922 - Normal
12/25/2025 02 PM PST 8.57 713 - Normal
12/25/2025 03 PM PST 8.06 551 - Normal
12/25/2025 04 PM PST 7.68 445 - Normal
12/25/2025 05 PM PST 7.38 369 - Normal
12/25/2025 06 PM PST 7.15 316 - Normal
12/25/2025 07 PM PST 7.03 289 - Normal
12/25/2025 08 PM PST 7.11 307 + Normal
12/25/2025 09 PM PST 7.27 343 + Normal
12/25/2025 10 PM PST 7.73 458 + Normal
12/25/2025 11 PM PST 8.39 653 + Normal
12/26/2025 12 AM PST 8.62 730 + Normal
12/26/2025 01 AM PST 8.55 706 - Normal
12/26/2025 02 AM PST 8.72 764 + Normal
12/26/2025 03 AM PST 8.86 814 + Normal
12/26/2025 04 AM PST 9.00 865 + Normal
12/26/2025 05 AM PST 8.97 854 - Normal
12/26/2025 06 AM PST 8.60 723 - Normal
12/26/2025 07 AM PST 7.95 519 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
12/26/2025 08 AM PST 7.62 429 Normal
12/26/2025 09 AM PST 7.28 345 - Normal
12/26/2025 10 AM PST 7.04 292 - Normal
12/26/2025 11 AM PST 7.02 287 - Normal
12/26/2025 12 PM PST 7.17 320 + Normal
12/26/2025 01 PM PST 7.31 352 + Normal
12/26/2025 02 PM PST 7.32 354 + Normal
12/26/2025 03 PM PST 7.27 343 - Normal
12/26/2025 04 PM PST 7.22 331 - Normal
12/26/2025 05 PM PST 7.20 327 - Normal
12/26/2025 06 PM PST 7.26 340 + Normal
12/26/2025 07 PM PST 7.37 366 + Normal
12/26/2025 08 PM PST 7.45 386 + Normal
12/26/2025 09 PM PST 7.54 408 + Normal
12/26/2025 10 PM PST 7.58 418 + Normal
12/26/2025 11 PM PST 7.53 406 - Normal
12/27/2025 12 AM PST 7.40 374 - Normal
12/27/2025 01 AM PST 7.22 331 - Normal
12/27/2025 02 AM PST 7.05 294 - Normal
12/27/2025 03 AM PST 6.93 268 - Normal
12/27/2025 04 AM PST 6.85 252 - Normal
12/27/2025 05 AM PST 6.79 240 - Normal
12/27/2025 06 AM PST 6.73 229 - Normal
12/27/2025 07 AM PST 6.68 219 - Normal
12/27/2025 08 AM PST 6.62 208 - Normal
12/27/2025 09 AM PST 6.55 196 - Normal
12/27/2025 10 AM PST 6.50 188 - Normal
12/27/2025 11 AM PST 6.45 179 - Normal
12/27/2025 12 PM PST 6.42 175 - Normal
12/27/2025 01 PM PST 6.38 168 - Normal
12/27/2025 02 PM PST 6.34 162 - Normal
12/27/2025 03 PM PST 6.30 156 - Normal
12/27/2025 04 PM PST 6.26 150 - Normal
12/27/2025 05 PM PST 6.23 145 - Normal
12/27/2025 06 PM PST 6.19 139 - Normal
12/27/2025 07 PM PST 6.16 135 - Normal
12/27/2025 08 PM PST 6.13 131 - Normal
12/27/2025 09 PM PST 6.10 126 - Normal
12/27/2025 10 PM PST 6.07 122 - Normal
12/27/2025 11 PM PST 6.04 118 - Normal
12/28/2025 12 AM PST 6.02 116 - Normal
12/28/2025 01 AM PST 6.00 113 - Normal
12/28/2025 02 AM PST 5.97 109 - Normal
12/28/2025 03 AM PST 5.96 108 - Normal
12/28/2025 04 AM PST 5.94 105 - Normal
12/28/2025 05 AM PST 5.92 103 - Normal
12/28/2025 06 AM PST 5.90 100 - Normal
12/28/2025 07 AM PST 5.89 99 - Normal
12/28/2025 08 AM PST 5.87 96 - Normal
12/28/2025 09 AM PST 5.86 95 - Normal
12/28/2025 10 AM PST 5.85 94 - Normal
12/28/2025 11 AM PST 5.84 93 - Normal
12/28/2025 12 PM PST 5.83 91 - Normal
12/28/2025 01 PM PST 5.82 90 - Normal
12/28/2025 02 PM PST 5.81 89 - Normal
12/28/2025 03 PM PST 5.80 88 - Normal
12/28/2025 04 PM PST 5.79 87 - Normal
12/28/2025 05 PM PST 5.79 87 0 Normal
12/28/2025 06 PM PST 5.78 86 - Normal
12/28/2025 07 PM PST 5.78 86 0 Normal
12/28/2025 08 PM PST 5.77 84 - Normal
12/28/2025 09 PM PST 5.76 83 - Normal
12/28/2025 10 PM PST 5.76 83 0 Normal
12/28/2025 11 PM PST 5.76 83 0 Normal
12/29/2025 12 AM PST 5.75 82 - Normal
12/29/2025 01 AM PST 5.75 82 0 Normal
12/29/2025 02 AM PST 5.75 82 0 Normal
12/29/2025 03 AM PST 5.74 81 - Normal
12/29/2025 04 AM PST 5.74 81 0 Normal
12/29/2025 05 AM PST 5.74 81 0 Normal
12/29/2025 06 AM PST 5.73 80 - Normal
12/29/2025 07 AM PST 5.73 80 0 Normal
12/29/2025 08 AM PST 5.73 80 0 Normal
12/29/2025 09 AM PST 5.73 80 0 Normal
12/29/2025 10 AM PST 5.73 80 0 Normal
12/29/2025 11 AM PST 5.72 79 - Normal
12/29/2025 12 PM PST 5.72 79 0 Normal
12/29/2025 01 PM PST 5.72 79 0 Normal
12/29/2025 02 PM PST 5.72 79 0 Normal
12/29/2025 03 PM PST 5.72 79 0 Normal
12/29/2025 04 PM PST 5.72 79 0 Normal
12/29/2025 05 PM PST 5.72 79 0 Normal
12/29/2025 06 PM PST 5.71 78 - Normal
12/29/2025 07 PM PST 5.71 78 0 Normal
12/29/2025 08 PM PST 5.71 78 0 Normal
12/29/2025 09 PM PST 5.71 78 0 Normal
12/29/2025 10 PM PST 5.71 78 0 Normal
12/29/2025 11 PM PST 5.71 78 0 Normal
12/30/2025 12 AM PST 5.71 78 0 Normal
12/30/2025 01 AM PST 5.71 78 0 Normal
12/30/2025 02 AM PST 5.71 78 0 Normal
12/30/2025 03 AM PST 5.71 78 0 Normal
12/30/2025 04 AM PST 5.71 78 0 Normal
12/30/2025 05 AM PST 5.71 78 0 Normal
12/30/2025 06 AM PST 5.71 78 0 Normal
12/30/2025 07 AM PST 5.71 78 0 Normal
12/30/2025 08 AM PST 5.71 78 0 Normal
12/30/2025 09 AM PST 5.70 77 - Normal
12/30/2025 10 AM PST 5.70 77 0 Normal
12/30/2025 11 AM PST 5.70 77 0 Normal
12/30/2025 12 PM PST 5.70 77 0 Normal
12/30/2025 01 PM PST 5.70 77 0 Normal
12/30/2025 02 PM PST 5.70 77 0 Normal
12/30/2025 03 PM PST 5.70 77 0 Normal
12/30/2025 04 PM PST 5.70 77 0 Normal
12/30/2025 05 PM PST 5.70 77 0 Normal
12/30/2025 06 PM PST 5.70 77 0 Normal
12/30/2025 07 PM PST 5.70 77 0 Normal
12/30/2025 08 PM PST 5.70 77 0 Normal
12/30/2025 09 PM PST 5.70 77 0 Normal
12/30/2025 10 PM PST 5.70 77 0 Normal
12/30/2025 11 PM PST 5.70 77 0 Normal
12/31/2025 12 AM PST 5.70 77 0 Normal
12/31/2025 01 AM PST 5.70 77 0 Normal
12/31/2025 02 AM PST 5.70 77 0 Normal
12/31/2025 03 AM PST 5.70 77 0 Normal
12/31/2025 04 AM PST 5.70 77 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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