time for the national forecast from meteorologist mike hoffman. >>> we're going start this week withtty strong trough in the middle of the country. that means more cold air through the mid-sections. it's going to be mild through the eastern seaboard. that's some good news here. a lot of this area, especially the southern mississippi valley needs the rain. there will be rain and snow up into the eastern great lakes. you can see that in the pacific northwest. very warm in the southwest. that will be spreading eastward to the four corner region, but still the trough persists. another system moving through the middle of. that that will be causing some light rain showers and some snow in the northern fringes of that. it doesn't look to be a wet system. another system coming coming into the pacific northwest there. we see the ridge building back up, we typically get another zone here. systems may be coming through the western sections with some rain and mountain snows that way with the next trough coming in. it does warm up, it looks like for the middle of the country as we head to the mid

it marks the first time epa has marked -- time for the forecast from meteorologist mike hoffman. >> bigtimeges coming later this week for much of the country. i know you folks in the northern tier states have seen shots of arctic air, but some of us are going to see more of it. the trough will start off in the best. pretty heavy snows across the portions of the rockies. great news for skiers. some showers along this first front as it continues to move through the ohio valley, great lakes and into the tennessee valley. by wednesday, everything starts to shift into the southeast. the trough shifts to the middle of the country, bringing frigid air. that will be spreading eastward with some decent snows. northern and central portions of the great lakes. by friday it may settle in for a while. snow is possible from the great lakes to the central appalachians to the tennessee valley. it all depends on this storm system. the east coast sees rain out of this system with rain and thunderstorms into the southeast. next week this takes us into the first week of december, i believe normal for everybody