Your automobile may have a tire out of balance or a worn part in the front end causing this "shimmy" effect .
What make the steering wheel shake is the tires that need wheel balance.
Not the steering wheel shake itself, however what is causing the steering wheel shake, can certainly be extremely dangerous and potentially cause you to lose control of the vehicle. **GET IT CHECKED OUT BEFORE THAT HAPPENS**
Wheel balance
Yes A VERY common concern is steering wheel shake due to ice in the rims
Yes, it is possible. Any loose/worn front end part can cause steering wheel to shake.
usually your cars out of alinment
Tire out of balance or bent wheel.
im guessing it has something to do with velocity and road conditions. yet again, if i'd imagine that a steering wheel shouldn't shake.... that can't be good.
Most certainly.
== == Bad Tire or Tires.
Yes, it can
Bad tire, wheel, bearing, steering component,..............