USGS Water-Year Summary 2024

12471000 MOSES LAKE AT MOSES LAKE, WA

LOCATION - Lat 47°06'11", long 119°19'02" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.28, T.19 N., R.28 E., Grant County, WA, Hydrologic Unit 17020015, on east shore 35 ft north of Interstate 90, 1.7 mi upstream from outlet, at town of Moses Lake, and at mile 55.9.

DRAINAGE AREA - 3,080 mi². of which 665 mi² is noncontributing.

REVISIONS HISTORY - WSP 1933: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 1909 to September 1914 and November 1936 to September 1945 (fragmentary), October 1945 to current year. Published as "at Neppel" 1912-14.

GAGE - Water-stage recorder. Datum of gage is NGVD of 1929, adjustment of 1937 (Bureau of Reclamation datum) and is 2.64 ft above NAVD of 1988 (GNSS survey by USGS, July 5, 2022). Prior to Apr. 3, 1910, nonrecording gage at site 0.6 mi northeast at different datum. Apr. 3, 1910, to Sept. 30, 1914, and Nov. 19, 1936, to Nov. 24, 1944, nonrecording gages at site 2.8 mi northeast at Parker Horn at various datums. Oct. 30, 1945, to Mar. 12, 1955, water-stage recorder at site near west shore on downstream side of bridge on U.S. Highway 10 at present datum.

REMARKS - Elevation controlled between 1,041 ft and 1,047 ft by two outlet structures at south end of lake. Many small diversions for irrigation. U. S. Geological Survey satellite telemeter at station.

EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 1,048.29 ft, Mar. 10, 1950; minimum observed, 1,038.17 ft, Aug. 27, 1910.