USGS Water-Year Summary 2024
12464800 COAL CREEK AT MOHLER, WA
LOCATION - Lat 47°24'25", long 118°19'04" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.07, T.22 N., R.36 E., Lincoln County, WA, Hydrologic Unit 17020013, on left bank 25 ft upstream from bridge on county road, 0.3 mi east of Mohler, and 15 mi upstream from mouth.
DRAINAGE AREA - 64.7 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 1963 to September 1974, 1975 to 1979 (annual maximums), October 2002 to current year.
GAGE - Water-stage recorder. Datum of gage is 2,000 ft above NGVD of 1929 (from topo map), and 1,993.75 ft above NAVD of 1988 (USGS GNSS II, Sept. 7, 2021).
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Feb. 3, 1963, reached a stage of 4.42 ft, discharge, 1,060 ft³/s, computed by slope-area measurement.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 755 ft³/s, Feb. 11, 2007, gage height, 3.86 ft; no flow for long periods most years.