About 25% of tornadoes are rated F1.
All tornadoes are dangerous.
The U.S. gets 75% of all recorded tornadoes. This is misleading however as many countries do not keep records of their tornadoes and the actual percentage of tornadoes for the U.S. is probably much smaller.
About 1% of thunderstorms produce tornadoes.
Official statistics say 75-80% of tornadoes occur in the U.S. This is very misleading, however, as most countries do not keep detailed records of their tornadoes. The vast majority of tornadoes outside the U.S. are never documented. So, the real percentage is not known.
Less than 1% of tornadoes earn a violent rating (F4 or F5) on the Fujita Scale. The same applies the the Enhanced Fujita scale with EF4 and EF5 tornadoes.
All tornadoes are dangerous.
Since official record keeping began in 1950 no tornadoes have been recorded in the town in April. However the surrounding areas of Walworth County have seen four tornadoes. An F2 on April 18 1955, an F2 on April 19 1957, and two F1s on April 11 1965.
About 1% of thunderstorms produce tornadoes.
No, about 1% percent of tornadoes are rated as violent EF4 or EF5). About 75-80% of tornadoes are rated as weak (EF0 or EF1).
About 89% of tornadoes are rated as weak (F0 or F1).
About 1% of severe thunderstorms produce tornadoes.
In the United States, strong tornadoes, counted as those rated F2 or higher, account for about 11% of all tornadoes.
Less than 1% of thunderstorms produce tornadoes.
Tornadoes usually strike in the afternoon or evening. Over 80 percent of tornadoes occur between 12:00 p.m. and 12:00 a.m.
In the United States about 1% of thunderstorms produce tornadoes.
About 4-5% of tornadoes are rated F3 or higher.
Based on data from 1991-2011 (when the number of tornadoes in the U.S. was accurately recorded) F4 and EF4 tornadoes averaged about 0.5% of all tornadoes.