Signs that a tornado may soon form includes rotation of the clouds during a thunderstorm accompanied by a lowering of the cloud base. The clouds near this rotation may open up. This can then be accompanied by very strong winds.
Other weather that often accompanies tornadoes includes hail and greenish clouds, though these are much less definite indicators.
Thunderstorms need to start rotating. This rotation must then tighten and intensify to produce a tornado.
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.
When there are signs of an oncoming tornado and the people are warning you\alerting you about it, to be prepared.
A tornado can hit a house, but cannot happen indoors.
It is possible for a tornado to strike Foxboro, MA, but there is no way of knowing for certain if it will happen.
a rain shower will happen 3 hrs before
Signs that a tornado may be near include a dark, greenish sky, large hail, a loud roaring sound, and a visible funnel cloud. If you hear a tornado warning or see these signs, seek shelter immediately.
There is not such thing as a "chemical tornado" a tornado is the result of thermodynamic physical processes.
There are no standard signs for drills, which are practice sessions and therefore require announcements, not signs.
New Jersey has had tornadoes as strong as F3, and if it happened before it probably will happen again. An F3 tornado can cause very serious damage.
No. A tornado is a vortex of air. There is no air in space.
It is impossible to predict where the next tornado will occur.