This is another highly debatable claim.
The Sun reported in 2016 that "The UK is claimed to get more tornadoes per square kilometre than any other country in the world."
Note the use of the word "claimed". The Sun doesn't even say by whom it is claimed.
The Wise Geek is more definite, but has a different answer: "The Netherlands has the most tornadoes of any country relative to its land area, with at least 20 a year, which works out to 0.0013 tornadoes per square mile (0.00048 per sq km) a year. The UK has the next most (relative to land area), with around 33 recorded tornadoes a year, or 0.00035 per sq mi (0.00013 per sq km). It also has the most tornadoes (in absolute numbers) of any European country, regardless of size."
© Macclesfield Quiz League 2019