USGS Water-Year Summary 2024

13011000 SNAKE RIVER NEAR MORAN, WY

LOCATION - Lat 43°51'31", long 110°35'09" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 SE 1/4 sec.18, T.45 N., R.114 W., Teton County, WY, Hydrologic Unit 17040101, Moran quad., Grand Teton National Park, on left bank 1,000 ft downstream from Jackson Lake Dam, 4.1 mi west of Moran, and at mile 988.7.

DRAINAGE AREA - 807 mi² of which 2 mi² probably is noncontributing.

SURFACE-WATER RECORDS

PERIOD OF RECORD - September 1903 to current year. Monthly discharge only for some periods, published in WSP 1317. Published as "South Fork Snake River at Moran" prior to October 1910 and as "Snake River at Moran" October 1910 to September 1968.

GAGE - Water-stage recorder and crest-stage gage. Elevation of gage datum is 6,732.01 ft above NAVD88, from GNSS survey. Prior to June 13, 1917, nonrecording gage, and June 14, 1917 to May 20, 1940, water-stage recorder, at site 1.5 mi downstream at different datums.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood during early June 1894 was considerably higher than that of June 12, 1918.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 15,100 ft³/s June 12, 1918, gage height, 10.41 ft, site and datum then in use; maximum gage height, 10.96 ft, June 11, 1997; minimum daily, 0.30 ft³/s Oct. 28, 1969.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - WATER TEMPERATURE: May 2022 to current year.

INSTRUMENTATION - Sutron Aquatemp thermistor.

REMARKS - Water-temperature records represent water temperature at sensor within 0.2°C. Maximum and minimum recorded values in the EXTREMES paragraphs may have occurred during days of partial record and may not appear in the daily values tables.

EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum recorded, 22.0°C, August 1, 2022; minimum recorded, 0.2°C, December 3, 2023.