The All-Star Home Run Derby has been rained out only once in the 30 years since the showcase began — in Cincinnati in 1988.
It looks like the Queen City might be in line to repeat that dubious feat Monday night.
MORE: Past Home Run Derby winners | 2015 field, bracket | Home Run Derby odds
Cincinnati began All-Star Monday under a flash flood watch, and the National Weather Service forecasts "several rounds of showers and thunderstorms" during the day and into the night, some of them severe.
Organizers will hope that the worst-case scenario ends up being a repeat of last year in Minneapolis, when participants waited out a 54-minute rain delay before Yoenis Cespedes took the title.
The Home Run Derby is scheduled to begin at 8 p.m. ET at Great American Ball Park and will be televised on ESPN.
