Polar Vortex could contribute to quick-hitting snowstorm for Interstate 95 corridor in the Northeast

Another round of bone-chilling air from the Polar Vortex could invade the central and northeastern U.S. this weekend and potentially produce a quick-hitting snowstorm for the Interstate 95 corridor if this cold air meets up with moisture that is expected to race across the country. Eventually, this storm system is expected to move into the Northeast late Saturday into Sunday but this is where question marks remain. Run-to-run computer forecast models have been flip-flopping on whether there will be enough moisture to produce snow.