There is no real evidence that they can. The most violent tornadoes have been known to have been turn from their foundations, but foundations have noot been blown away. Some foundations have been damaged, however. In a few cases concrete slabs have been shattered, but this was likely due to impacts from large objects rather than the tornado's winds.
There is a siren that blows in the county that the tornado is in. However, in states such as KS, it will blow also only for a city. The siren last for a couple of minutes.
It depends on the intensity. Some can only blow away relatively light objects, while the most violent can blow away well constructed houses, and can even strip away roads.
It varies widely depending on where you are relative to the tornado, how much rain and haze is in the area, and what else may be blocking you view. In good visibility a tornado may be visible from over 10 miles away. In the worst cases a tornado obscured by rain may not be visible until it actually hits you.
because there is no wind to blow it away
On the traditional Fujita scale there is no such thing as an F9 tornado. On the TORRO scale used in Britain a T9 tornado is a very violent tornado equivalent to a strong F4 on the Fujita scale. Such a tornado will destroy most buildings in its path.
Trailer homes can be safe depending on how well you secure them. You would be better off finding a home that has a strong foundation, which makes it less likely to blow away during a tornado.
Yes, a house can be completely swept off its foundation by an EF4 or EF5 tornado depending on how well built it is.
Andy is being compared to a tornado, probably meaning that he was a whirlwind of energy... moving quickly, filled with power, ready to blow everyone away.
If wind speeds are great enough, i.e. Hurricane or tornado, cows have been known to be blown off the ground
The main destructive force is the wind. The winds of a tornado can tear away parts of the house, break winds, and possibly push in walls. In some cases the winds may be strong enough to completely blow the house away. A tornado may also carry debris, which can cause damage if it hits a building.
That varies. If you are close enough to be in the area of the tornado's inflow then the wind will blow almost directly towards the tornado, perhaps a little to the right of that direction. In that case the wind direction will depend on where the tornado is relative to you. If you are beyond the inflow area for the tornado, then nothing about the wind direction would indicate the approaching tornado.
Blow Away was created in 1978.
Yes, a very strong tornado can sweep it off its foundation and reduce it to rubble.
An F5 Tornado is the most powerful category of tornado possible. This tornado pulls well-built homes off their foundations and into the air before shredding them and wiping the foundation clean.
Pressure decreases sharply, reaching its lowest at the center of the tornado. This pulls air toward the center of the tornado and then drawn into the tornado's updraft. The tornado spins as it originates from a larger circulation called a mesocyclone.
Blow Me Away was created on 2010-02-23.
The very strongest can destroy cement buildings.