USGS Water-Year Summary 2020
04136900 AU SABLE RIVER NEAR MC KINLEY, MI
LOCATION - Lat 44°36'46", long 83°50'16" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.28, T.26 N., R.5 E., Alcona County, MI, Hydrologic Unit 04070007, on right bank, upstream side of U.S. Forest Service 4001 bridge on Au Sable River Road, 5.5 mi southeast of McKinley.
DRAINAGE AREA - 1,513 mi².
PERIOD OF RECORD - October 1996 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 830 ft above NGVD 29, from topographic map.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 4,990 ft³/s, Apr. 1, 1998, gage height, 10.73 ft; maximum gage height, 15.05 ft, Dec. 12, 2013, from floodmark, backwater from ice; minimum discharge, 363 ft³/s, Mar. 11, 2003, result of freezeup.
PERIOD OF RECORD - Water years 1997 to current year.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 1996 to current year.
DISSOLVED OXYGEN: October 1996 to current year.
INSTRUMENTATION - Water-quality monitor.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 26.9°C, July 21, 2011; minimum, -0.5°C, on many days during winter periods.
DISSOLVED OXYGEN: Maximum, 16.2 mg/L, Feb. 26, 2001; minimum, 5.2 mg/L, Aug. 28, 1998, July 28, 31, 1999.