Seasonal variation of the probable maximum precipitation east of the 105th Meridian for areas from 10 to 1000 square miles and duration of 6, 12, 24, and 48 hours.
U.S. National Oceanic and Atmospheric Administration.
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Maps showing the 24-hr 200 sq. mi. PMP and curves for adjusting those values for durations of 6, 12, and 48 hr and for areas from 10 to 1,000 sq. mi. are presented.