Emily Pike found the answer. She says the strongest winds officially recorded in a tornado were 302 mph, during an F5 tornado that struck Bridge Creek and Moore, Oklahoma on May 3, 1999. Sign up ...

You can't determine that a tornado is an F5 -- the most violent ever seen -- by directly calculating its wind speed. Wind measuring devices fly to pieces at half the violence of a 300 mph storm.

It's been over eight years since the last catastrophic EF5 tornado struck the United States, occurring in Moore, Oklahoma, on May 20, 2013. This is the longest-streak without an EF5/F5 tornado ...

Each of these would be a major weather event anywhere in the country. But in one bizarre day, both the strongest possible tornado and an epic snowstorm happened in the same state.

F5 tornadoes are rare but are considered "incredible" tornadoes with winds up to 320 mph and destroys everything in its path. They can turn debris into missiles and send cars flying over 300 feet ...

It's been six years this Monday since the last catastrophic EF5 tornado struck the United States, occurring in Moore, Oklahoma, on May 20, 2013. This is the second longest-streak without an EF5/F5 ...

As a result, tornadoes that might have been classified as F5 under the old system could now be assigned an EF4 rating under the EF scale due to stricter criteria.

The strength of tornadoes is rated on the Enhanced Fujita, or EF, Scale.

Technology has improved greatly since the 1974 super outbreak that led to an F5 tornado in Xenia.