River stage
Last reported 2026-10-13 | NWS GUDC1
In brief
The Guadalupe River at Almaden Expressway, CA read 1.98 ft on Oct 13, 2026, 7.02 ft below action stage.
Source: National Weather Service gauge GUDC1
| Rank | Crest | Date |
|---|---|---|
| 1 | 11.73 ft | 1995-01-09 |
| 2 | 10.50 ft | 1998-02-03 |
| 3 | 9.64 ft | 1995-03-10 |
| 4 | 9.15 ft | 2019-01-16 |
| 5 | 9.03 ft | 1983-01-24 |
| 6 | 9.01 ft | 2023-01-09 |
| 7 | 8.99 ft | 2023-01-14 |
| 8 | 8.63 ft | 2023-01-16 |
Flood crests recorded at this gauge by the National Weather Service.
Action Stage: Additional flow from Canoas Creek watershed or increased reservoir spills may bring river to flood stage.
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.
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.
Historical High Water - January 1995
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.
Written by the local National Weather Service forecast office for this exact gauge.
No. The Guadalupe River at Almaden Expressway is at 1.98 ft, 7.02 ft below action stage.
The National Weather Service sets action stage 9 ft, minor flooding 10.5 ft, moderate flooding 11 ft and major flooding 12 ft.
The highest crest on record is 11.73 ft, on 1995-01-09.
Stage and flood information from the NOAA National Weather Service (gauge GUDC1). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.