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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: | Feb 23 2026 at 2:01 PM PST | Next Issuance: | Feb 24 2026 at 9:00 AM PST
| |
| 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: 02/23/2026 at 02:03 PM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 02/19/2026 at 07:00 AM PST
# Maximum Observed Stage: 10.18 Feet
# Maximum Observed Flow: 1553 cfs
#
# Earliest Date & Time of Maximum Forecast: 02/25/2026 at 01:00 AM PST
# Maximum Forecast Stage: 7.02 Feet
# Maximum Forecast Flow: 308 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
02/18/2026 02 PM PST 8.29 695 Normal
02/18/2026 03 PM PST 8.21 666 - Normal
02/18/2026 04 PM PST 8.29 695 + Normal
02/18/2026 05 PM PST 8.43 747 + Normal
02/18/2026 06 PM PST 8.31 702 - Normal
02/18/2026 07 PM PST 8.14 641 - Normal
02/18/2026 08 PM PST 8.05 609 - Normal
02/18/2026 09 PM PST 8.09 623 + Normal
02/18/2026 10 PM PST 8.13 637 + Normal
02/18/2026 11 PM PST 8.06 613 - Normal
02/19/2026 12 AM PST 8.01 596 - Normal
02/19/2026 01 AM PST 7.98 586 - Normal
02/19/2026 02 AM PST 7.96 579 - Normal
02/19/2026 03 AM PST 8.11 630 + Normal
02/19/2026 04 AM PST 9.00 981 + Normal
02/19/2026 05 AM PST 9.64 1281 + Normal
02/19/2026 06 AM PST 9.87 1394 + Normal
02/19/2026 07 AM PST 10.18 1553 + Normal
02/19/2026 08 AM PST 10.13 1527 - Normal
02/19/2026 09 AM PST 9.83 1374 - Normal
02/19/2026 10 AM PST 9.62 1272 - Normal
02/19/2026 11 AM PST 9.61 1267 - Normal
02/19/2026 12 PM PST 9.63 1277 + Normal
02/19/2026 01 PM PST 9.56 1243 - Normal
02/19/2026 02 PM PST 9.60 1262 + Normal
02/19/2026 03 PM PST 9.48 1204 - Normal
02/19/2026 04 PM PST 9.26 1099 - Normal
02/19/2026 05 PM PST 9.06 1008 - Normal
02/19/2026 06 PM PST 8.89 933 - Normal
02/19/2026 07 PM PST 8.73 866 - Normal
02/19/2026 08 PM PST 8.59 810 - Normal
02/19/2026 09 PM PST 8.48 766 - Normal
02/19/2026 10 PM PST 8.38 728 - Normal
02/19/2026 11 PM PST 8.30 698 - Normal
02/20/2026 12 AM PST 8.24 676 - Normal
02/20/2026 01 AM PST 8.20 662 - Normal
02/20/2026 02 AM PST 8.13 637 - Normal
02/20/2026 03 AM PST 8.10 627 - Normal
02/20/2026 04 AM PST 8.07 616 - Normal
02/20/2026 05 AM PST 8.03 603 - Normal
02/20/2026 06 AM PST 7.98 586 - Normal
02/20/2026 07 AM PST 7.92 566 - Normal
02/20/2026 08 AM PST 7.89 556 - Normal
02/20/2026 09 AM PST 7.86 546 - Normal
02/20/2026 10 AM PST 7.84 539 - Normal
02/20/2026 11 AM PST 7.83 536 - Normal
02/20/2026 12 PM PST 7.81 530 - Normal
02/20/2026 01 PM PST 7.80 527 - Normal
02/20/2026 02 PM PST 7.77 517 - Normal
02/20/2026 03 PM PST 7.72 501 - Normal
02/20/2026 04 PM PST 7.64 477 - Normal
02/20/2026 05 PM PST 7.59 462 - Normal
02/20/2026 06 PM PST 7.54 447 - Normal
02/20/2026 07 PM PST 7.51 438 - Normal
02/20/2026 08 PM PST 7.48 430 - Normal
02/20/2026 09 PM PST 7.44 418 - Normal
02/20/2026 10 PM PST 7.42 413 - Normal
02/20/2026 11 PM PST 7.41 410 - Normal
02/21/2026 12 AM PST 7.34 390 - Normal
02/21/2026 01 AM PST 7.22 358 - Normal
02/21/2026 02 AM PST 7.16 343 - Normal
02/21/2026 03 AM PST 7.14 338 - Normal
02/21/2026 04 AM PST 7.13 335 - Normal
02/21/2026 05 AM PST 7.12 333 - Normal
02/21/2026 06 AM PST 7.11 330 - Normal
02/21/2026 07 AM PST 7.10 328 - Normal
02/21/2026 08 AM PST 7.09 325 - Normal
02/21/2026 09 AM PST 7.09 325 0 Normal
02/21/2026 10 AM PST 7.11 330 + Normal
02/21/2026 11 AM PST 7.10 328 - Normal
02/21/2026 12 PM PST 7.07 320 - Normal
02/21/2026 01 PM PST 7.06 318 - Normal
02/21/2026 02 PM PST 7.05 315 - Normal
02/21/2026 03 PM PST 6.94 289 - Normal
02/21/2026 04 PM PST 6.82 261 - Normal
02/21/2026 05 PM PST 6.76 248 - Normal
02/21/2026 06 PM PST 6.74 244 - Normal
02/21/2026 07 PM PST 6.70 235 - Normal
02/21/2026 08 PM PST 6.67 229 - Normal
02/21/2026 09 PM PST 6.65 225 - Normal
02/21/2026 10 PM PST 6.63 221 - Normal
02/21/2026 11 PM PST 6.61 216 - Normal
02/22/2026 12 AM PST 6.60 214 - Normal
02/22/2026 01 AM PST 6.59 212 - Normal
02/22/2026 02 AM PST 6.58 210 - Normal
02/22/2026 03 AM PST 6.59 212 + Normal
02/22/2026 04 AM PST 6.59 212 0 Normal
02/22/2026 05 AM PST 6.58 210 - Normal
02/22/2026 06 AM PST 6.58 210 0 Normal
02/22/2026 07 AM PST 6.57 208 - Normal
02/22/2026 08 AM PST 6.57 208 0 Normal
02/22/2026 09 AM PST 6.57 208 0 Normal
02/22/2026 10 AM PST 6.59 212 + Normal
02/22/2026 11 AM PST 6.62 219 + Normal
02/22/2026 12 PM PST 6.60 214 - Normal
02/22/2026 01 PM PST 6.57 208 - Normal
02/22/2026 02 PM PST 6.57 208 0 Normal
02/22/2026 03 PM PST 6.56 206 - Normal
02/22/2026 04 PM PST 6.55 204 - Normal
02/22/2026 05 PM PST 6.54 202 - Normal
02/22/2026 06 PM PST 6.52 199 - Normal
02/22/2026 07 PM PST 6.50 195 - Normal
02/22/2026 08 PM PST 6.48 191 - Normal
02/22/2026 09 PM PST 6.47 189 - Normal
02/22/2026 10 PM PST 6.49 193 + Normal
02/22/2026 11 PM PST 6.47 189 - Normal
02/23/2026 12 AM PST 6.44 184 - Normal
02/23/2026 01 AM PST 6.44 184 0 Normal
02/23/2026 02 AM PST 6.42 180 - Normal
02/23/2026 03 AM PST 6.41 178 - Normal
02/23/2026 04 AM PST 6.40 177 - Normal
02/23/2026 05 AM PST 6.40 177 0 Normal
02/23/2026 06 AM PST 6.40 177 0 Normal
02/23/2026 07 AM PST 6.40 177 0 Normal
02/23/2026 08 AM PST 6.41 178 + Normal
02/23/2026 09 AM PST 6.39 175 - Normal
02/23/2026 10 AM PST 6.38 173 - Normal
02/23/2026 11 AM PST 6.37 171 - Normal
02/23/2026 12 PM PST 6.37 171 0 Normal
02/23/2026 01 PM PST 6.37 171 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
02/23/2026 02 PM PST 6.37 171 Normal
02/23/2026 03 PM PST 6.36 169 - Normal
02/23/2026 04 PM PST 6.35 168 - Normal
02/23/2026 05 PM PST 6.35 168 0 Normal
02/23/2026 06 PM PST 6.34 166 - Normal
02/23/2026 07 PM PST 6.33 164 - Normal
02/23/2026 08 PM PST 6.31 161 - Normal
02/23/2026 09 PM PST 6.30 159 - Normal
02/23/2026 10 PM PST 6.29 157 - Normal
02/23/2026 11 PM PST 6.28 156 - Normal
02/24/2026 12 AM PST 6.27 154 - Normal
02/24/2026 01 AM PST 6.27 154 0 Normal
02/24/2026 02 AM PST 6.26 152 - Normal
02/24/2026 03 AM PST 6.26 152 0 Normal
02/24/2026 04 AM PST 6.25 151 - Normal
02/24/2026 05 AM PST 6.25 151 0 Normal
02/24/2026 06 AM PST 6.25 151 0 Normal
02/24/2026 07 AM PST 6.25 151 0 Normal
02/24/2026 08 AM PST 6.24 149 - Normal
02/24/2026 09 AM PST 6.24 149 0 Normal
02/24/2026 10 AM PST 6.24 149 0 Normal
02/24/2026 11 AM PST 6.23 147 - Normal
02/24/2026 12 PM PST 6.23 147 0 Normal
02/24/2026 01 PM PST 6.23 147 0 Normal
02/24/2026 02 PM PST 6.23 147 0 Normal
02/24/2026 03 PM PST 6.25 151 + Normal
02/24/2026 04 PM PST 6.30 159 + Normal
02/24/2026 05 PM PST 6.39 175 + Normal
02/24/2026 06 PM PST 6.47 189 + Normal
02/24/2026 07 PM PST 6.52 199 + Normal
02/24/2026 08 PM PST 6.57 208 + Normal
02/24/2026 09 PM PST 6.67 229 + Normal
02/24/2026 10 PM PST 6.80 257 + Normal
02/24/2026 11 PM PST 6.94 289 + Normal
02/25/2026 12 AM PST 7.01 306 + Normal
02/25/2026 01 AM PST 7.02 308 + Normal
02/25/2026 02 AM PST 6.97 296 - Normal
02/25/2026 03 AM PST 6.87 273 - Normal
02/25/2026 04 AM PST 6.75 246 - Normal
02/25/2026 05 AM PST 6.62 219 - Normal
02/25/2026 06 AM PST 6.51 197 - Normal
02/25/2026 07 AM PST 6.42 180 - Normal
02/25/2026 08 AM PST 6.36 169 - Normal
02/25/2026 09 AM PST 6.31 161 - Normal
02/25/2026 10 AM PST 6.27 154 - Normal
02/25/2026 11 AM PST 6.24 149 - Normal
02/25/2026 12 PM PST 6.22 146 - Normal
02/25/2026 01 PM PST 6.21 144 - Normal
02/25/2026 02 PM PST 6.20 142 - Normal
02/25/2026 03 PM PST 6.19 141 - Normal
02/25/2026 04 PM PST 6.18 139 - Normal
02/25/2026 05 PM PST 6.18 139 0 Normal
02/25/2026 06 PM PST 6.17 138 - Normal
02/25/2026 07 PM PST 6.17 138 0 Normal
02/25/2026 08 PM PST 6.16 137 - Normal
02/25/2026 09 PM PST 6.16 137 0 Normal
02/25/2026 10 PM PST 6.16 137 0 Normal
02/25/2026 11 PM PST 6.16 137 0 Normal
02/26/2026 12 AM PST 6.15 135 - Normal
02/26/2026 01 AM PST 6.15 135 0 Normal
02/26/2026 02 AM PST 6.15 135 0 Normal
02/26/2026 03 AM PST 6.15 135 0 Normal
02/26/2026 04 AM PST 6.14 134 - Normal
02/26/2026 05 AM PST 6.14 134 0 Normal
02/26/2026 06 AM PST 6.14 134 0 Normal
02/26/2026 07 AM PST 6.14 134 0 Normal
02/26/2026 08 AM PST 6.14 134 0 Normal
02/26/2026 09 AM PST 6.14 134 0 Normal
02/26/2026 10 AM PST 6.13 132 - Normal
02/26/2026 11 AM PST 6.13 132 0 Normal
02/26/2026 12 PM PST 6.13 132 0 Normal
02/26/2026 01 PM PST 6.13 132 0 Normal
02/26/2026 02 PM PST 6.13 132 0 Normal
02/26/2026 03 PM PST 6.13 132 0 Normal
02/26/2026 04 PM PST 6.12 131 - Normal
02/26/2026 05 PM PST 6.12 131 0 Normal
02/26/2026 06 PM PST 6.12 131 0 Normal
02/26/2026 07 PM PST 6.12 131 0 Normal
02/26/2026 08 PM PST 6.12 131 0 Normal
02/26/2026 09 PM PST 6.12 131 0 Normal
02/26/2026 10 PM PST 6.12 131 0 Normal
02/26/2026 11 PM PST 6.12 131 0 Normal
02/27/2026 12 AM PST 6.11 129 - Normal
02/27/2026 01 AM PST 6.11 129 0 Normal
02/27/2026 02 AM PST 6.11 129 0 Normal
02/27/2026 03 AM PST 6.11 129 0 Normal
02/27/2026 04 AM PST 6.11 129 0 Normal
02/27/2026 05 AM PST 6.11 129 0 Normal
02/27/2026 06 AM PST 6.11 129 0 Normal
02/27/2026 07 AM PST 6.10 128 - Normal
02/27/2026 08 AM PST 6.10 128 0 Normal
02/27/2026 09 AM PST 6.10 128 0 Normal
02/27/2026 10 AM PST 6.10 128 0 Normal
02/27/2026 11 AM PST 6.10 128 0 Normal
02/27/2026 12 PM PST 6.10 128 0 Normal
02/27/2026 01 PM PST 6.10 128 0 Normal
02/27/2026 02 PM PST 6.09 127 - Normal
02/27/2026 03 PM PST 6.09 127 0 Normal
02/27/2026 04 PM PST 6.09 127 0 Normal
02/27/2026 05 PM PST 6.09 127 0 Normal
02/27/2026 06 PM PST 6.09 127 0 Normal
02/27/2026 07 PM PST 6.09 127 0 Normal
02/27/2026 08 PM PST 6.09 127 0 Normal
02/27/2026 09 PM PST 6.09 127 0 Normal
02/27/2026 10 PM PST 6.08 125 - Normal
02/27/2026 11 PM PST 6.08 125 0 Normal
02/28/2026 12 AM PST 6.08 125 0 Normal
02/28/2026 01 AM PST 6.08 125 0 Normal
02/28/2026 02 AM PST 6.08 125 0 Normal
02/28/2026 03 AM PST 6.08 125 0 Normal
02/28/2026 04 AM PST 6.08 125 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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