Nacimiento River below Sapaque C near Bryson CA

San Luis Obispo County, California · USGS gauge 11148900 · NWS NBYC1 · Nacimiento River flood status · California river levels

Is Nacimiento River below Sapaque C near Bryson CA flooding right now?

Nacimiento River below Sapaque C near Bryson CA measured 5.14 ft on 2026-09-11 01:15:00 UTC. No NWS minor flood stage is published for this gauge. Its action level is 27 ft; action level is not flood stage.

Gauge height

5.14 ft

as of 76 min ago

Streamflow

—

data refreshed 13 min ago

The highest crest on record was 36.2 ft on Mon, Jan 9, 2023.

Flood forecast

NWS forecast, issued 13 hours ago. Forecasts are issued for select river points and update through the day.

Flood stages at this gauge

Category	Stage	Current distance
Action	27 ft	21.9 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

Stage	Date
36.2 ft	2023-01-09
35.15 ft	1995-03-10
32.14 ft	1993-01-14
32 ft	1978-01-16
23.35 ft	1995-01-10

Nearby gauges

Gauge	Distance	County
San Antonio River near Lockwood CA	7.5 mi	Monterey County
Nacimiento River below Nacimiento Dam near Bradley CA	13.5 mi	San Luis Obispo County
Salinas River near Bradley CA	15.9 mi	Monterey County
Salinas River a Paso Robles CA	25.4 mi	San Luis Obispo County
Estrella River near Estrella CA	25.9 mi	San Luis Obispo County

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.

Sources: USGS monitoring location · NWS gauge & forecast