NWS (National Weather Service) Watch/Warning Verification Flash Flood, Winter Storm, and High Wind, January 1980-June 1986

摘要

The study presents flash flood, winter storm, and high wind watch and warning statistics of lead time, probability of detection, false alarm ratio, and critical success index. The period of record is 1980 through 1985 for flash floods and 1980 through June 1986 for winter storms and high winds. Several years of data that were obtained under similar procedures are presented so that trends in watch/warning performance can be established. Two years of detailed statistics, not previously published, of flash floods, winter storms, and high winds are contained in an appendix.