The average lead time for a tornado warning is 15 minutes. Sometimes you get more warning, sometimes less.
rain, hail, and wind happen.
The weather that precedes a tornado, including heavy rain and hail generally occurs in the front part of a supercell thunderstorm, with the tornado closer to the back.
Storm chasers have helped to identify features within a storm that are signs of a possible or imminent tornado including the "hook echo" signature sometimes seen on a radar image, and the rear-flank downdraft which often occurs just a few minutes before a tornado forms. Storm chasers can also relay information about a tornado to warning centers and broadcasters who can then warn people in the tornado's path.
Tornadoes are poorly understood and scientists are still not sure what is involved in forming them. Furthermore, the factors that we do know contribute to tornadoes can be diffdifficult to detect.
detection for protection and warning
detection for protection and warning
detection for protection and warning
A tornado. Tornadoes usually occur on land anyway.
It is simply a tornado. Most tornadoes occur on land.
When a tornado touches down it means it has reached the ground and can now cause damage. It is not a tornado until this occurs,
This often occurs because a tornado is in the updraft portion or rear ha;f of a supercell thunderstorm, while most of the wind rain and hail is in the downdraft portion or front half.
The energy is stored in the air as thermal energy. A supercell thunderstorm turns that into kinetic energy in the form of rotating wind. Under the right conditions that rotation can form a tornado.