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<br />Appendix B
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<br />MONTHLY SUMMARY OF DISCHARGE
<br />
<br />Powder River near Locate, Hontana
<br />
<br />Location.--Lat 46026', long 105018', in NEi sec. 26, T. 8 N., R. 51 E.,
<br />on right bank 50 ft downstream from bridge on U. S. Highway 12 at
<br />present site of Locate (5 miles west of former site of Locate), 3
<br />miles upstreroa from Locate Creek, and 25'mi1es east of ~a1es City.
<br />
<br />Records available.--March 1938 to Septen~er 1957.
<br />
<br />Gage.--Water-stage recorder and ..lire-weight gage. Prior to July 11, 19~7,
<br />wire-weight gage at bridge 50 ft upstream at same datum.
<br />
<br />Avera~e discharge.--19-years, 626 cfs (453,200 acre-ft per year).
<br />
<br />Extremes.--Maximum discharge during year, 4,380 cfs June 22 (gage height,
<br />5..l7 ft); minimum daily, 5.5 cfs Oct. 14.
<br />
<br />1938-57: !{aximum disc~arge observed, 31,000 cfs Feb. 19, 1943 (gage
<br />height, 11.23 ft), from rating curve extended above 14,000 cfs; no flow
<br />Jan. 16 to Feb. 12, Feb. 22-24, 1950.
<br />
<br />. Second- RWloff in
<br />Month foot days Maximum Minimwn Meal'! Acre-feet
<br /> October 1956 240.5 17 5.5 7.76 477
<br /> November 1,963 140 14 65.4 3~
<br /> December 3,568 140 85 115 "7,080
<br /> January 1957 2,635 130 30 85.0 5,230
<br /> February 2,410 300 30 86.1 4,780
<br /> March 12,979 738 292 419 25,71;0
<br /> April 10,492 1,160 234 350 20,810
<br /> May 13, 634 1,160 157 I.#) 27,01;0
<br /> JWle 71,237 4,250 657 2-,)75 lU,300
<br /> July 19,273 1, <;00 150 622 38,230
<br /> August 2,420.4 443 6 78.1 1,.,800
<br /> September 1957 2.865 270 34 95.5 5.680
<br /> Water year 1956-57 143,716.9 4,250 5.5 394 285,100
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