Santa Margarita River a Ysidora CA
Is Santa Margarita River a Ysidora CA flooding right now?
Santa Margarita River a Ysidora CA measured 6.80 ft on 2026-09-11 01:15:00 UTC. That observation was 5.7 ft below its 12.5 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
6.80 ft
Streamflow
—
Minor flooding here begins at 12.5 ft, with major flooding at 16.29 ft. The highest crest on record was 20.47 ft on Sat, Jan 16, 1993.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 10.85 ft | 4.0 ft below |
| Minor flood | 12.5 ft | 5.7 ft below |
| Moderate flood | 13.78 ft | 7.0 ft below |
| Major flood | 16.29 ft | 9.5 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 20.47 ft | 1993-01-16 |
| 18.8 ft | 1980-02-18 |
| 18.12 ft | 1978-03-01 |
| 18 ft | 1927-02-16 |
| 15.89 ft | 1969-02-25 |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Oneill Lake Outlet Ch near Fallbrook CA | 1.6 mi | San Diego County |
| Oneill Lake Spill Ch near Fallbrook CA | 1.7 mi | San Diego County |
| Fallbrook C near Fallbrook CA | 3.0 mi | San Diego County |
| Las Flores C a Las Pulgas Cyn near Oceanside CA | 5.2 mi | San Diego County |
| Santa Margarita River a Mouth near Oceanside CA | 5.8 mi | San Diego County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.