If you're referring to the Pirelli A/S Plus 3 people are mentioning ... They are definitely not a 'snow' tire.
Much safer to check with tires that have a 3PMSF designation, for "severe winter" weather. (Even some of those might not be stellar, but I wouldn't want to rely upon a regular A/S tire over snow, ice or slush. That's a good way to go off the road, IMO.)
Pirelli's "Scorpion/Cinturato Weather Active" tires would work (their "all-weather" compound), as would the "Scorpion All Terrain Plus" tire.