How many many people could possibly be killed in an F1 tornado?

F1 tornadoes rarely kill, and when they do the death toll is rarely higher than 1 or 2.

However, the deadliest F1 tornado to occur in the U.S. since records keeping began in 1950 killed 16 people. The deaths occurred when the tornado capsized a boat on Pomona Lake in Kansas.

A similar, but far deadlier case occurred in China in 2015 when an EF1 tornado capsized a cruise ship on the Yangtze river, killing 442 people.