Precipitation-Excessive Amounts for Short Durations

Precipitation-Excessive Amounts for Short Durations is historical digital data set DSI-9656, archived at the National Climatic Data Center (NCDC). These data consist of daily Heavy Precipitation Data (HPD) for the United States and the Pacific Islands from 1962 to 1972 in durations of 5, 10, 15, 20, 30, 45, 60, 80, 100, 120, 150, and 180 minute periods. The HPD maximums are for 15 or more minutes and up to 24 hours. They also include hourly and 15 minute accumulative data when available. A related file is DSI-9649 (C00243), Maximum Short Duration Precipitation. The Original sources are recording precipitation gauge charts from either a weighing or tipping bucket gauge. Excessive amounts are scaled from these charts and entered on WBAN 10B. Beginning January 1965 the amounts were punched at the station on Card No. 3 of precipitation Data Card 056 and converted to Card 060, excessive Precipitation Amounts, for this deck. Prior to January 1965 the amounts were obtained from WBAN 10B or Form 721-4, anannual chronological list of excessive precipitation. SUPPLEMENTARY NOTE Excessive precipitation is published in Climatological Data, National Summary, annual issue, beginning in 1950. Prior to 1950, excessive precipitation data were published in the Annual Report of the Chief of U.S. Weather Bureau, 1895-1934, and in the Meteorological Yearbook, 1935-1949.