Some of the highest chances for accumulating snowfall will be in the Midwest and mid-Atlantic regions this weekend.

The National Weather Service said parts of western Pennsylvania could see more than 6 inches of snow this weekend.

The winter storm watch previously issued for Greater Cincinnati has been upgraded to a warning, as more snow is expected Saturday night.

National Weather Service (NWS) meteorologists have issued winter storm warnings and winter weather advisories for 13 states as of Thursday morning as winter storms unleash impacts across the Northern Plains, Midwest, and Northeast.

It’s not even officially winter, but another storm dumped more snow on the Lehigh Valley on Saturday evening into Sunday morning than forecasters were expecting. Some areas saw as much as 8 inches of accumulation. The snow created treacherous road conditions, but also made for some beautiful winter scenes and plenty of fun for children.

A strong geomagnetic storm is forecast for Tuesday, according to the National Oceanic and Atmospheric Administration's Space Weather Prediction Center.

On Monday at 1:27 a.m. the NWS Seattle WA issued a winter storm watch valid from Tuesday 10 p.m. until Wednesday 10 p.m. The watch is for Cascades of Whatcom and Skagit counties, Cascades of Snohomish and Northern King counties,

Widespread snowfall totals of 1 to 5 inches are expected across New Jersey with more than 5 inches possible in some counties.

A First Alert was in effect as a winter storm brought snow across the Philadelphia region Saturday night into Sunday morning.