Winter storm warnings have been issued in four states: Oregon, Washington, California and Minnesota. In northwestern Oregon and parts of Washington, including the Willapa Hills, there will be light snow showers until midnight Friday. Cities impacted include Mary's Peak, Brooklyn, Sunset Summit, Wilson River Summit, Valsetz, and Horton.

What's the difference between a winter storm watch, an advisory and a warning? And can they mean different things for different parts of Indiana?

On Wednesday at 1:44 p.m. the NWS Reno NV issued an updated winter storm warning valid from Thursday 10 a.m. until Friday noon for Lake Tahoe.

On Wednesday at 2:48 p.m. a winter storm warning was issued by the National Weather Service valid from Thursday 4 p.m. until Friday 10 a.m. for Jackson County.

Punxsutawney Phil made his annual prediction in Pennsylvania, and the groundhog saw a shadow, meaning the United States is set for six more weeks of winter.

A winter storm warning was issued by the NWS Eureka CA on Wednesday at 2:50 p.m. valid from Thursday 10 a.m. until Friday 10 a.m. for Northern Trinity.

As a second atmospheric river takes aim at Northern California, the Sacramento office of the National Weather Service issued a Winter Storm Warning for Monday through Wednesday

On Wednesday at 2:48 p.m. the NWS Medford OR issued a winter weather advisory valid from Thursday 4 p.m. until Friday 10 a.m. The advisory is for Central Siskiyou County and Northeast Siskiyou and Northwest Modoc counties as well as Modoc County.