If in fact you have not driven in snow get a set of winter tires.I was looking in my car&driver mag and looked at the tire rack add on winter tires.every tire company they have makes a winter tire.I think the 215/55-16 will work just fine on your car.The tires you have now will not handle the snow.I used to have a mustang GT with goodyear eagle gt's on it and they where horable in the snow.I slid everywhere and couldn't stop.
The tires you have are made for summer and can handle wet pavement without hydroplaining,maybe they could handle very light snow but not "snow".Check out tire racks package deals to.you need to get traction and snow tires will give you this also they help you stop and you might need to get out of someones way thats sliding towards you.I would get snows there is no price on your safety.
chris
2000 contour se sport V6


2000 contour se sport V6
tropic green,gray leather.
K&N filter,Brembo crossdrilled/slotted rotors,Magnaflow stainless mufflers/Borla tips.
OEM SVT body kit
Hancook winter tires
on Focus wheels.

1999 Ford Explorer XLT,Gray cloth power lumbar,rear a/c and radio,AWD.
K&N filter,Edelbrock IAS shocks,and Backcountry step bars.

Mobil One used in both!