DENDROLOGY

Detailed explanation-1: -Tornadoes occur with greatest frequency in the Red River Valley of North Texas. More tornadoes have been recorded in Texas than in any other state, with 8, 007 funnel clouds reaching the ground between 1951 and 2011, thus becoming tornadoes.

Detailed explanation-2: -"Tornado Alley is an area of the U.S. where there is a high potential for tornado development, ‘’ AccuWeather Senior Meteorologist Dan Kottlowski said. “This area encompasses much of northern Texas northward through Oklahoma, Kansas, Missouri and parts of Louisiana, Iowa, Nebraska and eastern Colorado."

Detailed explanation-3: -Most tornadoes in the United States occur east of the Rocky Mountains. The Great Plains, the Midwest, the Mississippi Valley and the southern United States are all areas that are vulnerable to tornadoes. They are relatively rare west of the Rockies and are also less frequent in the northeastern states.