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USGS Water-Year Summary 2024
12175500 THUNDER CREEK NEAR NEWHALEM, WA
LOCATION - Lat 48°40'22", long 121°04'18" referenced to North American Datum of 1927, in SE 1/4 sec.23, T.37 N., R.13 E., Whatcom County, WA, Hydrologic Unit 17110005, (unsurveyed) Ross Lake National Recreation Area, on right bank 0.4 mi upstream from high-water line of Diablo Reservoir, 9.0 mi east of Newhalem, and at mile 3.4.
DRAINAGE AREA - 105 mi².
REVISIONS HISTORY - WSP 1012: 1943. WSP 1286: 1931(M), 1932, 1933(M), 1935(M), 1938-39(M), 1941-42(M), 1944-46(M), 1950(M), 1952 (annual runoff in acre-ft). WSP 1932: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1930 to current year. Published as "above Colonial Creek, near Marblemount" 1930-31.
GAGE - Water-stage recorder. Elevation of gage is 1,220 ft above NGVD of 1929, from river-profile map.
REMARKS - No regulation or diversion upstream from station. Large diurnal fluctuations caused by snowmelt during summer months. U.S. Geological Survey satellite telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD - Records for floods, prior to establishment of station, are given in WSP 1527.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 17,800 ft³/s, Oct 20, 2003, gage height, 15.90 ft, from rating curve extended above 3,500 ft³/s and slope-area measurement at gage height of 15.90 ft; minimum discharge not determined, probably less than 50 ft³/s during period of ice effect or no gage-height record in February 1936.
