A winter storm watch is usually issued when a storm system is one to two days from starting. This long lead time is used to help you get ready if you have to make travel or work changes. Eventually as the storm gets closer, the winter storm watch either turns to a winter storm warning or a winter weather advisory.

We should see a few snow flurries on Tuesday here and there, but a bigger snow looms on Wednesday and early Thursday.

According to Meteorologist Shiri Spear’s latest weather blog post, the storm looks like it will move in between about 8 p.m. and 11 p.m. on Saturday night, with the heaviest snow falling from midnight through 7 a.m. on Sunday.