Tornadoes are among the most destructive forces of nature, with the power to wipe out entire neighborhoods in minutes. The first tornado forecast was issued on March 25, 1948, a time when they were ...
But the biggest difference ... for various types of buildings and structures. As a result, tornadoes that might have been classified as F5 under the old system could now be assigned an EF4 ...
A quirky aspect of the way we measure twisters helps explain why there hasn't been a top-tier-rated tornado in 12 years.
Northwest Florida and the Panhandle are expected to see severe thunderstorms Saturday stemming from what AccuWeather says could be the biggest severe weather and tornado event of the year so far.