False. Tornadoes can occur almost anywhere; Tornado Alley is just where strong tornadoes are most common.
True. Tornadoes are most common in the southeastern quadrant of the United States, known as "Dixie Alley." States like Alabama, Mississippi, Louisiana, and Tennessee experience a higher frequency of tornadoes compared to other regions in the country.
False. Most objects picked up by a tornado will be ejected in a matter of seconds.
True
Doppler radar is used to predict tornadoes when they're already occurring.But aside from that tornado predictions are very uncertain and difficult to make. The durations of tornado warnings are counted in minutes and even then there are many false alarms.
Currently the biggest problem with tornadoes is their unpredictability. We are able to save lives with the warnings we have, but our abilities are limited. Most tornado warnings issued are false alarms, which leads people to become complacent. When a new warning is issued many expect another false alarm and do not take shelter in time. Such complacency may have contributed to the catastrophe of the 2011 Joplin tornado, which killed 158 people. The key to eliminating these false alarms is understanding why some storms produce tornadoes while other, similar storms do not.
False. Tornadoes are very common in Texas.
Nowhere is safe from tornadoes. Tornadoes can climb mountains. There was a tornado on 12,000 foot mountain once. here's a good site to look at: http://www.nssl.noaa.gov/edu/safety/tornadoguide.html
Only to a limited degree. Doppler radar can detect a mesocyclone, which is a rotating updraft in a thunderstorm that can produce a tornado. Radar can also detect the much smaller signature of a possible tornado, though this can be difficult, especially for weak and short lived tornadoes. Even if radar detects such a signature, it cannot tell if it is on the ground of if it will touch down, but it is enough to prompt a tornado warning. By detecting where a mesocyclone or possible tornado is and knowing the direction of the storm, it is possible to see what areas might be in damager. Even with this technology some tornadoes strike without warning, and there are many false alarms.
True. Doppler radar can detect tornadoes.
Meteorologists look at various conditons in the stmosphere such as temperature, pressure, humidity, and wind speed and direction at different levels of the atmosphere and in different locations and use computer models to see how conditions might come together. Given the right setup with a sufficient supply of warm, moist air and the right setup of wind shear you could see the potential for tornadoes. The Storm Prediction Center issues severe weather outlooks discussing the potential for tornadoes, severe hail, and severe wind gusts from thunderstorms. Maps and discussions of these outlooks can be found in the link below. The percentages shown are the chances of a given severe weather event ocurring within 25 miles of any given point. If a tornado outlook covers any significant portion of the map, then the will probably be at least a few weak tornadoes. If a tornado watch is issued, that means conditions in a general area are favorable for tornadoes to form over the next few hours. Most of the time a tornado watch is issued at least a few tornadoes will probably touch down, though most areas under the watch will not come under an immediate threat. If a tornado warning is issued that means that a nearby thunderstorm is either likely to produce a tornado or that a tornado has been spotted. While some tornado warnings do turn out to be false alarms, it is best tor err on the side of caution and take cover. Many people killed or injured in tornadoes were those who did not heed the warnings.
True.
No, This is False.