Most tornadoes only last a few minutes, but the longest-lived tornadoes may, in rare cases, persist for more than 3 hours. Unless a tornado is unusually slow-moving, though, it will not stay over the same spot for very long. The average tornado moves at about 30 miles per hour. At that speed a mile-wide tornado would only be over a given spot for two minutes. Some tornadoes do move very slowly, and may even stop moving completely. One tornado is reported to have remained over the same spot for 90 minutes.
It depends on the size of the tornado and how fast it's moving. Most tornadoes will only be over a given spot for a few seconds. A large tornado moving at normal speed may be over a spot for a minute or two. However, one tornado was noted to have stayed on the same spot for 90 minutes.
It is possible for a tornado to strike Foxboro, MA, but there is no way of knowing for certain if it will happen.
The Joplin tornado struck the city of Joplin, Missouri.
Yes, lightning can strike the same spot more than once. Tall structures like buildings and trees are often struck repeatedly because they provide a direct path to the ground for the electrical discharge.
It is impossible to predict when a or where a tornado will strike unless it is already developing. Even then it is uncertain.
It is impossible to predict when the next tornado will strike in any location.
It is very unlikely for an earthquake and tornado to occur at the same time in the same place. Earthquakes are caused by tectonic plate movement, while tornadoes are atmospheric phenomenon. They are typically associated with different weather conditions and geological processes that do not overlap in the same location simultaneously.
Dallas is in Tornado Alley and has be struck by tornadoes before, so yes.
The worst level of tornado that can strike is an EF5.
It is impossible to make long-term predictions about where one when a tornado will strike.
The average warning time for a tornado strike is around 13 minutes. However, warning times can vary depending on the location and specific circumstances of the tornado. It is important to have a plan in place to quickly seek shelter when a tornado warning is issued.