In the Portland-Vancouver area, storms and floods are presently being studied in 16 basins with drainage areas ranging from 0.21 to 6.63 square miles and with various basin slopes, degrees of imperviousness, and mixes of land use. Fanno Creek basin in Portland has the longest period of rainfall-runoff record, starting in 1973; Tryon Creek basin in Portland is next with a record starting in 1974. Records in all other basins began in 1975. For each basin, data are tabulated for daily precipitation on a yearly basis and for 5-minute precipitation and 5-minute streamflow for selected storms.