The avalanche moves very quickly! But, if you'll upgrade your vehicle and quickly overcome obstacles on the way, then not a single snowflake from the giant stream of snow and ice behind will reach you.
It is worth remembering that if you do not see an avalanche, this doesn't mean that it is not there! A quick start and passing obstacles can only delay the inevitable unless you make it to the finish line.
If you see an avalanche behind you, then you should do anything possible to escape - keep jumping from the hills or over the obstacles, don't save the gas!
If you can't destroy or jump over the obstacles in time and an avalanche keeps overtaking you, then you should improve your weapons and increase the gas tank.
It is worth remembering that if you do not see an avalanche, this doesn't mean that it is not there! A quick start and passing obstacles can only delay the inevitable unless you make it to the finish line.
If you see an avalanche behind you, then you should do anything possible to escape - keep jumping from the hills or over the obstacles, don't save the gas!
If you can't destroy or jump over the obstacles in time and an avalanche keeps overtaking you, then you should improve your weapons and increase the gas tank.