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.

Back-to-back winter storms are predicted to affect 29 million Americans across the country. Here’s the latest from the National Weather Service. The National Weather Service has issued a winter storm watch from Tuesday morning until Wednesday morning,

The NWS Hanford CA issued an updated winter storm watch at 4:01 a.m. on Tuesday valid from Wednesday 10 a.m. until Saturday 4 a.m. The watch is for Yosemite, Upper San Joaquin River, Kaiser to Rodgers Ridge,

The National Weather Service issued a winter storm watch at 2:37 a.m. EST on Tuesday valid from Wednesday 1 p.m. EST until Thursday 7 a.m. EST for Alpena, Alcona, Ogemaw, Iosco, Gladwin and Arenac counties.

The National Weather Service in Salt Lake City issued a winter storm watch for Beaver, Iron, Garfield, Washington and Kane counties on Tuesday.

Metro Detroit could see 6-8 inches of snow as a winter storm is expected to hit the state. Here are expected totals near you.

The next winter storm to hit New Jersey is expected to start Tuesday morning. Some spots could see 6 to 8 inches of snow.

"I’m not even that Catholic but the thought of the pope calling me out personally would be HUMILIATING." An early model is showing that we could see up to a foot of snow in parts of Southeast Michigan Wednesday into Thursday.

Philadelphia is expected to receive somewhere between 3 and 4 inches of snow today, according to the National Weather Service

Storm Watch has already been issued for the Philadelphia area, as more snow is expected to fall Tuesday into Wednesday.