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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: | Feb 08 2026 at 8:15 AM PST | Next Issuance: | Feb 09 2026 at 9:00 AM 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: 02/08/2026 at 08:17 AM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 02/04/2026 at 11:00 PM PST
# Maximum Observed Stage: 5.72 Feet
# Maximum Observed Flow: 80 cfs
#
# Earliest Date & Time of Maximum Forecast: 02/11/2026 at 01:00 AM PST
# Maximum Forecast Stage: 6.68 Feet
# Maximum Forecast Flow: 221 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
02/03/2026 08 AM PST 5.69 76 Normal
02/03/2026 09 AM PST 5.69 76 0 Normal
02/03/2026 10 AM PST 5.70 78 + Normal
02/03/2026 11 AM PST 5.69 76 - Normal
02/03/2026 12 PM PST 5.69 76 0 Normal
02/03/2026 01 PM PST 5.68 75 - Normal
02/03/2026 02 PM PST 5.69 76 + Normal
02/03/2026 03 PM PST 5.69 76 0 Normal
02/03/2026 04 PM PST 5.69 76 0 Normal
02/03/2026 05 PM PST 5.71 79 + Normal
02/03/2026 06 PM PST 5.70 78 - Normal
02/03/2026 07 PM PST 5.70 78 0 Normal
02/03/2026 08 PM PST 5.70 78 0 Normal
02/03/2026 09 PM PST 5.69 76 - Normal
02/03/2026 10 PM PST 5.70 78 + Normal
02/03/2026 11 PM PST 5.70 78 0 Normal
02/04/2026 12 AM PST 5.71 79 + Normal
02/04/2026 01 AM PST 5.70 78 - Normal
02/04/2026 02 AM PST 5.71 79 + Normal
02/04/2026 03 AM PST 5.70 78 - Normal
02/04/2026 04 AM PST 5.71 79 + Normal
02/04/2026 05 AM PST 5.71 79 0 Normal
02/04/2026 06 AM PST 5.71 79 0 Normal
02/04/2026 07 AM PST 5.71 79 0 Normal
02/04/2026 08 AM PST 5.71 79 0 Normal
02/04/2026 09 AM PST 5.71 79 0 Normal
02/04/2026 10 AM PST 5.71 79 0 Normal
02/04/2026 11 AM PST 5.71 79 0 Normal
02/04/2026 12 PM PST 5.71 79 0 Normal
02/04/2026 01 PM PST 5.71 79 0 Normal
02/04/2026 02 PM PST 5.71 79 0 Normal
02/04/2026 03 PM PST 5.71 79 0 Normal
02/04/2026 04 PM PST 5.71 79 0 Normal
02/04/2026 05 PM PST 5.71 79 0 Normal
02/04/2026 06 PM PST 5.71 79 0 Normal
02/04/2026 07 PM PST 5.71 79 0 Normal
02/04/2026 08 PM PST 5.71 79 0 Normal
02/04/2026 09 PM PST 5.72 80 + Normal
02/04/2026 10 PM PST 5.71 79 - Normal
02/04/2026 11 PM PST 5.72 80 + Normal
02/05/2026 12 AM PST 5.71 79 - Normal
02/05/2026 01 AM PST 5.71 79 0 Normal
02/05/2026 02 AM PST 5.71 79 0 Normal
02/05/2026 03 AM PST 5.71 79 0 Normal
02/05/2026 04 AM PST 5.71 79 0 Normal
02/05/2026 05 AM PST 5.71 79 0 Normal
02/05/2026 06 AM PST 5.71 79 0 Normal
02/05/2026 07 AM PST 5.71 79 0 Normal
02/05/2026 08 AM PST 5.71 79 0 Normal
02/05/2026 09 AM PST 5.71 79 0 Normal
02/05/2026 10 AM PST 5.71 79 0 Normal
02/05/2026 11 AM PST 5.71 79 0 Normal
02/05/2026 12 PM PST 5.71 79 0 Normal
02/05/2026 01 PM PST 5.71 79 0 Normal
02/05/2026 02 PM PST 5.71 79 0 Normal
02/05/2026 03 PM PST 5.71 79 0 Normal
02/05/2026 04 PM PST 5.71 79 0 Normal
02/05/2026 05 PM PST 5.70 78 - Normal
02/05/2026 06 PM PST 5.69 76 - Normal
02/05/2026 07 PM PST 5.68 75 - Normal
02/05/2026 08 PM PST 5.67 74 - Normal
02/05/2026 09 PM PST 5.66 73 - Normal
02/05/2026 10 PM PST 5.65 72 - Normal
02/05/2026 11 PM PST 5.64 71 - Normal
02/06/2026 12 AM PST 5.63 70 - Normal
02/06/2026 01 AM PST 5.62 69 - Normal
02/06/2026 02 AM PST 5.61 68 - Normal
02/06/2026 03 AM PST 5.60 67 - Normal
02/06/2026 04 AM PST 5.60 67 0 Normal
02/06/2026 05 AM PST 5.59 66 - Normal
02/06/2026 06 AM PST 5.59 66 0 Normal
02/06/2026 07 AM PST 5.58 65 - Normal
02/06/2026 08 AM PST 5.58 65 0 Normal
02/06/2026 09 AM PST 5.57 64 - Normal
02/06/2026 10 AM PST 5.57 64 0 Normal
02/06/2026 11 AM PST 5.56 63 - Normal
02/06/2026 12 PM PST 5.56 63 0 Normal
02/06/2026 01 PM PST 5.55 62 - Normal
02/06/2026 02 PM PST 5.57 64 + Normal
02/06/2026 03 PM PST 5.56 63 - Normal
02/06/2026 04 PM PST 5.54 61 - Normal
02/06/2026 05 PM PST 5.54 61 0 Normal
02/06/2026 06 PM PST 5.53 60 - Normal
02/06/2026 07 PM PST 5.52 59 - Normal
02/06/2026 08 PM PST 5.52 59 0 Normal
02/06/2026 09 PM PST 5.51 58 - Normal
02/06/2026 10 PM PST 5.50 57 - Normal
02/06/2026 11 PM PST 5.51 58 + Normal
02/07/2026 12 AM PST 5.50 57 - Normal
02/07/2026 01 AM PST 5.50 57 0 Normal
02/07/2026 02 AM PST 5.49 56 - Normal
02/07/2026 03 AM PST 5.49 56 0 Normal
02/07/2026 04 AM PST 5.49 56 0 Normal
02/07/2026 05 AM PST 5.49 56 0 Normal
02/07/2026 06 AM PST 5.48 55 - Normal
02/07/2026 07 AM PST 5.47 54 - Normal
02/07/2026 08 AM PST 5.46 53 - Normal
02/07/2026 09 AM PST 5.46 53 0 Normal
02/07/2026 10 AM PST 5.46 53 0 Normal
02/07/2026 11 AM PST 5.45 52 - Normal
02/07/2026 12 PM PST 5.45 52 0 Normal
02/07/2026 01 PM PST 5.44 51 - Normal
02/07/2026 02 PM PST 5.44 51 0 Normal
02/07/2026 03 PM PST 5.44 51 0 Normal
02/07/2026 04 PM PST 5.44 51 0 Normal
02/07/2026 05 PM PST 5.42 49 - Normal
02/07/2026 06 PM PST 5.41 49 - Normal
02/07/2026 07 PM PST 5.40 48 - Normal
02/07/2026 08 PM PST 5.40 48 0 Normal
02/07/2026 09 PM PST 5.40 48 0 Normal
02/07/2026 10 PM PST 5.40 48 0 Normal
02/07/2026 11 PM PST 5.40 48 0 Normal
02/08/2026 12 AM PST 5.40 48 0 Normal
02/08/2026 01 AM PST 5.40 48 0 Normal
02/08/2026 02 AM PST 5.40 48 0 Normal
02/08/2026 03 AM PST 5.40 48 0 Normal
02/08/2026 04 AM PST 5.39 47 - Normal
02/08/2026 05 AM PST 5.40 48 + Normal
02/08/2026 06 AM PST 5.39 47 - Normal
02/08/2026 07 AM PST 5.39 47 0 Normal
02/08/2026 08 AM PST 5.39 47 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
02/08/2026 09 AM PST 5.38 46 Normal
02/08/2026 10 AM PST 5.38 46 0 Normal
02/08/2026 11 AM PST 5.38 46 0 Normal
02/08/2026 12 PM PST 5.38 46 0 Normal
02/08/2026 01 PM PST 5.38 46 0 Normal
02/08/2026 02 PM PST 5.37 45 - Normal
02/08/2026 03 PM PST 5.37 45 0 Normal
02/08/2026 04 PM PST 5.37 45 0 Normal
02/08/2026 05 PM PST 5.37 45 0 Normal
02/08/2026 06 PM PST 5.37 45 0 Normal
02/08/2026 07 PM PST 5.36 44 - Normal
02/08/2026 08 PM PST 5.36 44 0 Normal
02/08/2026 09 PM PST 5.36 44 0 Normal
02/08/2026 10 PM PST 5.36 44 0 Normal
02/08/2026 11 PM PST 5.36 44 0 Normal
02/09/2026 12 AM PST 5.36 44 0 Normal
02/09/2026 01 AM PST 5.35 43 - Normal
02/09/2026 02 AM PST 5.35 43 0 Normal
02/09/2026 03 AM PST 5.35 43 0 Normal
02/09/2026 04 AM PST 5.35 43 0 Normal
02/09/2026 05 AM PST 5.35 43 0 Normal
02/09/2026 06 AM PST 5.35 43 0 Normal
02/09/2026 07 AM PST 5.35 43 0 Normal
02/09/2026 08 AM PST 5.34 43 - Normal
02/09/2026 09 AM PST 5.34 43 0 Normal
02/09/2026 10 AM PST 5.34 43 0 Normal
02/09/2026 11 AM PST 5.34 43 0 Normal
02/09/2026 12 PM PST 5.34 43 0 Normal
02/09/2026 01 PM PST 5.34 43 0 Normal
02/09/2026 02 PM PST 5.34 43 0 Normal
02/09/2026 03 PM PST 5.34 43 0 Normal
02/09/2026 04 PM PST 5.34 43 0 Normal
02/09/2026 05 PM PST 5.33 42 - Normal
02/09/2026 06 PM PST 5.33 42 0 Normal
02/09/2026 07 PM PST 5.33 42 0 Normal
02/09/2026 08 PM PST 5.33 42 0 Normal
02/09/2026 09 PM PST 5.33 42 0 Normal
02/09/2026 10 PM PST 5.33 42 0 Normal
02/09/2026 11 PM PST 5.33 42 0 Normal
02/10/2026 12 AM PST 5.33 42 0 Normal
02/10/2026 01 AM PST 5.33 42 0 Normal
02/10/2026 02 AM PST 5.32 41 - Normal
02/10/2026 03 AM PST 5.32 41 0 Normal
02/10/2026 04 AM PST 5.32 41 0 Normal
02/10/2026 05 AM PST 5.32 41 0 Normal
02/10/2026 06 AM PST 5.32 41 0 Normal
02/10/2026 07 AM PST 5.32 41 0 Normal
02/10/2026 08 AM PST 5.32 41 0 Normal
02/10/2026 09 AM PST 5.32 41 0 Normal
02/10/2026 10 AM PST 5.33 42 + Normal
02/10/2026 11 AM PST 5.35 43 + Normal
02/10/2026 12 PM PST 5.39 47 + Normal
02/10/2026 01 PM PST 5.44 51 + Normal
02/10/2026 02 PM PST 5.51 58 + Normal
02/10/2026 03 PM PST 5.63 70 + Normal
02/10/2026 04 PM PST 5.78 87 + Normal
02/10/2026 05 PM PST 5.92 104 + Normal
02/10/2026 06 PM PST 6.05 121 + Normal
02/10/2026 07 PM PST 6.17 138 + Normal
02/10/2026 08 PM PST 6.29 155 + Normal
02/10/2026 09 PM PST 6.42 176 + Normal
02/10/2026 10 PM PST 6.53 194 + Normal
02/10/2026 11 PM PST 6.60 206 + Normal
02/11/2026 12 AM PST 6.65 215 + Normal
02/11/2026 01 AM PST 6.68 221 + Normal
02/11/2026 02 AM PST 6.67 219 - Normal
02/11/2026 03 AM PST 6.61 208 - Normal
02/11/2026 04 AM PST 6.52 192 - Normal
02/11/2026 05 AM PST 6.43 177 - Normal
02/11/2026 06 AM PST 6.34 163 - Normal
02/11/2026 07 AM PST 6.27 152 - Normal
02/11/2026 08 AM PST 6.22 145 - Normal
02/11/2026 09 AM PST 6.17 138 - Normal
02/11/2026 10 AM PST 6.11 129 - Normal
02/11/2026 11 AM PST 6.06 122 - Normal
02/11/2026 12 PM PST 6.02 117 - Normal
02/11/2026 01 PM PST 5.99 113 - Normal
02/11/2026 02 PM PST 5.97 110 - Normal
02/11/2026 03 PM PST 5.94 106 - Normal
02/11/2026 04 PM PST 5.92 104 - Normal
02/11/2026 05 PM PST 5.89 100 - Normal
02/11/2026 06 PM PST 5.87 97 - Normal
02/11/2026 07 PM PST 5.86 96 - Normal
02/11/2026 08 PM PST 5.83 93 - Normal
02/11/2026 09 PM PST 5.78 87 - Normal
02/11/2026 10 PM PST 5.71 79 - Normal
02/11/2026 11 PM PST 5.64 71 - Normal
02/12/2026 12 AM PST 5.57 64 - Normal
02/12/2026 01 AM PST 5.52 59 - Normal
02/12/2026 02 AM PST 5.48 55 - Normal
02/12/2026 03 AM PST 5.44 51 - Normal
02/12/2026 04 AM PST 5.40 48 - Normal
02/12/2026 05 AM PST 5.37 45 - Normal
02/12/2026 06 AM PST 5.33 42 - Normal
02/12/2026 07 AM PST 5.31 40 - Normal
02/12/2026 08 AM PST 5.29 38 - Normal
02/12/2026 09 AM PST 5.28 38 - Normal
02/12/2026 10 AM PST 5.27 37 - Normal
02/12/2026 11 AM PST 5.26 36 - Normal
02/12/2026 12 PM PST 5.26 36 0 Normal
02/12/2026 01 PM PST 5.25 35 - Normal
02/12/2026 02 PM PST 5.25 35 0 Normal
02/12/2026 03 PM PST 5.25 35 0 Normal
02/12/2026 04 PM PST 5.25 35 0 Normal
02/12/2026 05 PM PST 5.25 35 0 Normal
02/12/2026 06 PM PST 5.25 35 0 Normal
02/12/2026 07 PM PST 5.24 34 - Normal
02/12/2026 08 PM PST 5.24 34 0 Normal
02/12/2026 09 PM PST 5.24 34 0 Normal
02/12/2026 10 PM PST 5.24 34 0 Normal
02/12/2026 11 PM PST 5.24 34 0 Normal
02/13/2026 12 AM PST 5.24 34 0 Normal
02/13/2026 01 AM PST 5.24 34 0 Normal
02/13/2026 02 AM PST 5.24 34 0 Normal
02/13/2026 03 AM PST 5.23 34 - Normal
02/13/2026 04 AM PST 5.23 34 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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