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| GUADALUPE RIVER - SAN JOSE AT ALMADEN EXPRESSWAY (GUDC1) | ||||||||||||||||||
| Latitude: 37.28º N | Longitude: 121.88º W | Elevation: 150 Feet | ||||||||||||||||
| Location: Santa Clara County in CA | ||||||||||||||||||
| River Group: Central Coast | ||||||||||||||||||
| Issuance Time: | Jan 10 2026 at 8:39 AM PST |
| Please Note: | Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty. |
| 10-Day Accumulated Volume Plot |
| Tabular 10-Day Streamflow Volume Accumulation (1000s of Acre-Feet) Data Updated: Jan 10 2026 at 9:04 AM PST | ||||||||||
| Prob | Jan 11 | Jan 12 | Jan 13 | Jan 14 | Jan 15 | |||||
| 10% (Max) | 0.1 | 0.3 | 0.4 | 0.5 | 0.7 | |||||
| 25% | 0.1 | 0.3 | 0.4 | 0.5 | 0.7 | |||||
| 50% (Prob) | 0.1 | 0.3 | 0.4 | 0.5 | 0.7 | |||||
| 75% | 0.1 | 0.3 | 0.4 | 0.5 | 0.7 | |||||
| 90% (Min) | 0.1 | 0.3 | 0.4 | 0.5 | 0.7 | |||||
| RFC FCST | 0.1 | 0.3 | 0.4 | 0.5 | 0.7 | |||||
| Prob | Jan 16 | Jan 17 | Jan 18 | Jan 19 | Jan 20 | |||||
| 10% (Max) | 0.8 | 0.9 | 1.0 | 1.2 | 1.3 | |||||
| 25% | 0.8 | 0.9 | 1.0 | 1.1 | 1.3 | |||||
| 50% (Prob) | 0.8 | 0.9 | 1.0 | 1.1 | 1.3 | |||||
| 75% | 0.8 | 0.9 | 1.0 | 1.1 | 1.3 | |||||
| 90% (Min) | 0.8 | 0.9 | 1.0 | 1.1 | 1.3 | |||||
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ513) |
| Rest of Today: Partly cloudy. Highs in the lower 60s. North winds around 5 mph and becoming northwest in the afternoon. Tonight: Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 30s. Northwest winds around 5 mph. Sunday: Partly cloudy. Highs in the lower 60s. North winds around 5 mph. Sunday Night: Mostly clear. Lows around 40. Northeast winds around 5 mph. Monday: Sunny. Highs in the mid 60s. North winds around 5 mph. Monday Night: Mostly clear. Lows in the lower 40s. Tuesday through Friday: Mostly clear. Highs in the upper 60s. Lows in the mid 40s. |
| Flood Impacts | |
| 12.0 Feet | Major Flood Stage. Flooding continues to spill near Alam Avenue, flowing northward and crossing east under Willow Street and Alma Avenue viaducts, continuing to flow north. Overbanking occurs at Atlanta Avenue just upstream of CA87. The Willow Glen Neighborhood bounded by Willow Street and Minnesota Avenue see overland flooding. Overbanking occurs in various locations between Alma Avenue and Willow Glen Way. Potential flooding on Ross and Canoas Creeks due to high backwater caused by Guadalupe River. |
| 11.73 Feet | Historical High Water - January 1995 |
| 11.0 Feet | Moderate Flood Stage. River continues to overtop upstream of Alma Avenue Bridge into the Elks Lodge, spilling north along Lelong Street. Alma Avenue/CA87 viaduct is flooded. Creek overbanks west near Minnesota Avenue downstream of Alma Avenue. Properties south of the old UPRR alignment in the Northern Cross Neighborhood also at risk. |
| 10.5 Feet | Minor Flood Stage. River begins to overtop upstream of Alma Avenue Bridge into the Elks Lodge, spilling north , as well as near the RxR on the east bank. |
| 9.0 Feet | Action Stage: Additional flow from Canoas Creek watershed or increased reservoir spills may bring river to flood stage. |