South Branch Au Sable River near Luzerne, MI

Crawford County, Michigan · USGS gauge 04135700 · NWS LUZM4 · Michigan river levels

Is South Branch Au Sable River near Luzerne, MI flooding right now?

South Branch Au Sable River near Luzerne, MI measured 4.83 ft on 2026-10-27 17:00:00 UTC. No NWS minor flood stage is published for this gauge.

Gauge height

4.83 ft

as of 62 min ago

Streamflow

208 cfs

data refreshed 16 min ago

The highest crest on record was 8.18 ft on Wed, Apr 15, 2026.

Streamflow outlook

NOAA National Water Model forecast, issued 12 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

No National Weather Service flood stage is published for this gauge, so no flood category can be shown — why some gauges have no flood stage.

Highest crests on record

Stage	Date
8.18 ft	2026-04-15
7.46 ft	2014-04-17
7.3 ft	1976-03-28
7.07 ft	2013-04-21
6.87 ft	1997-04-07

Nearby gauges

Gauge	Distance	County
Nb Au Sable River at Kelloggs Br near Lovells, MI	7.3 mi	Crawford County
Au Sable River near Red Oak, MI	9.1 mi	Oscoda County
Au Sable River at Grayling, MI	13.0 mi	Crawford County
Au Sable River at Mio, MI	16.2 mi	Oscoda County
Manistee River near Grayling, MI	20.0 mi	Crawford 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