The National Weather Service has issued a winter storm watch for all of Massachusetts due to the potential for more than a half foot of snow across the region this weekend.Boston 25 Meteorologist Kevin Lemanowicz has us on a Weather Alert for Saturday night into Sunday morning.

The map I’ve put together for snowfall totals has a fairly wide range of 4 to 8 inches. During Saturday, after we get even more information, I’ll try to start honing that down to see whether we’re going to be closer to the 4 inches or closer to 8 inches.

Snow totals varied across the state, with accumulations approaching as high as 2.5 inches along and north of Route 2, forecasters said.