In today's Forecast Feed, Bernie Rayno provides an update on the cold and snow this week around the United States.

Recent weather patterns have brought persistent cold air to much of the Midwest and Northeast, with significant snowfall mainly in the upper Midwest and parts of Virginia, while major cities along the I-95 corridor have seen little snow. Forecasts indicate a final surge of very cold air arriving over the weekend, accompanied by a storm system that could bring accumulating snow, particularly to the Midwest and interior Northeast.

Weather models show differing scenarios for the weekend storm, with the European model suggesting the possibility of significant snowfall in interior New England and the UKMET model predicting only light snow. Regardless of the storm's strength, cold conditions are expected to continue into early the following week.

The caboose of the cold this weekend

Well, finally, there's light at the end of the tunnel, as far as the cold air is concerned. But I'll tell you what, for snow lovers, this is what I would call a waste of cold air. We've had plenty of cold air. Now, for the Midwest, it hasn't. You have a pretty deep snowpack. But for, you know, parts of the Northeast, especially the I-95 corridor, Boston, New York City, Philadelphia, you know, usually, this isn't the time of the year for snow for you. It's usually January into February, but still, it's been cold enough for snow, and we haven't really had any, at least not in the I-95 of significance. You know where we have had snow? The snow central in December. Two areas, the upper Midwest, look at this area, Chicago, Milwaukee, Marquette, and then also two snowstorms in Richmond and Petersburg, Virginia. This is a lot of snow for you for this time of year, and I'll tell you what, northern New England, the ski resorts up here, they are very happy to have this much snow on the ground this early, but certainly, Virginia, you've had your fair share of snow. Now, that first snow, that first storm that we've been telling you about, we haven't highlighted much here on the feed. I'm going to look a little beyond that, but I do want to show you the snow that's coming Tuesday night into Wednesday. There it is. It's going to be mostly north of Chicago, mostly north of Detroit, although there can be a little snow, but the areas that are going to do well, northern Minnesota, Duluth, the upper peninsula of Michigan, Green Bay, three to six inches, this lighter shade here of three to six inches, and then there will be spots that get a little more than that. So again, the rich get richer as far as the snow is concerned across the Midwest. We've been talking about that late week storm, a little clipper that could produce snow. That looks more like flurries as we move forward here, but there's going to be one more last, one last shot of cold, and that's going to be coming in over the weekend, and that's the one I don't want to keep. I feel like sometimes with snow, I'm like Lucy holding the football for Charlie Brown and I keep snatching it away, but I do believe the last shot of cold is our chance for more of a widespread snow. I have a pretty cool map here. I was looking at this earlier, and I think this kind of shows you where all the cold air is. I mean, this is a lot of cold air in northern Canada, the Northwest Territories, tons of cold air. But as I play this forward, you can see the shots of cold air coming here. Here's the one coming tonight into tomorrow. You see across the upper Midwest. There it is. Tuesday night into Wednesday, there's a shot of cold air coming in. That's our storm that we're tracking tonight into Wednesday. Look at the cold coming Wednesday evening, Thursday morning. Now, you have a weak storm that's going to be coming across the area Thursday into Friday from the Midwest toward the Northeast. Not much cold air with that, all right? It's not a reinforcement. It just keeps the cold air locked in, but I don't think there's going to be a lot of snow with that. I talk about the possibility of that producing snow from the Midwest to the Mid-Atlantic Thursday, Friday, or it just being a front. There's no wave on it, and it's just flurries. Looks like that one's going to be flurries. But then look at this. This is the last shot of cold coming in this setup. Here it comes, Friday, Saturday, Sunday into Monday. This is very cold air coming this weekend, and it looks like it's going to be accompanied by a storm. All right, let me show this to you here. As we move forward, Friday morning, let's skip right to Friday morning. This is the European. This is the key. Here's this first piece of energy that I was watching yesterday. This is going to produce a little bit of light snow and flurries across the Midwest and into the Mid-Atlantic. I don't think it's going to be a whole lot. Let me show it to you on the surface map. You can see it a little better. See, it's right in here. See, right in here. Thursday night into Friday, little band coating to an inch of snow right in this zone here. Right in here from Illinois, Iowa, into the Mid-Atlantic, maybe a coating to an inch of snow. Enough to make things slippery, but it's not going to be a big storm. You can just see why when you look at the upper air pattern associated with it. See this little piece of energy coming across Iowa, Illinois, Indiana. It just doesn't ... It's just fast moving, so it just doesn't have enough time to produce a lot of snow. Again, maybe a coating to an inch. The last shot of cold air, and I just showed you that on the map. Here it comes, and it begins with this right in here. You've got this upper ... You've got this core of cold right here across Manitoba. This is going to be Friday, and now you have this piece of energy coming along on the southern side of this. Now, the deeper this is, the better chance you have snow. If it's going to be like its predecessors where it just comes quickly in the flow, then all this is is an Arctic boundary. There's some snow and flurries, but there's nothing significant with it. That's what are the possibilities, and I'll show you the modeling on it. This is the European. Watch it. It's the European. Look at this. See how that digs right there? That's Sunday, late Saturday night. Now, that's a lot of energy. Watch this round the bend, too, as we get into Sunday. Right there. Look at the depth of that trough. Now, if that's right, you're going to get accumulating snow in here. Probably, I know those that love snow in New York City and Philadelphia, you're not going to be happy. It's probably west of you. For those that hate the snow, you'll be happy with me. But if the European was right, and this trough really digs, and not only does it digs, it becomes what I call negatively tilted, tilted from northwest to southeast. That's a snow producer. Watch the other model I do like to look at, the UKMET model. Look at the difference in the model. This is Sunday morning, UKMET, European, European, UKMET. That would suggest this is just a frontal boundary, and that's it. Look at the surface map on this. This is the UKMET for the weekend. See, it's not as strong with this. So there's a little band of snow in here, a little bit, not much. There's maybe a coating to an inch, and that would be it. Why? Because it doesn't have the dip in the jet stream. But the European, a lot beefier. The European looks like a dangerous, if this digs like this, this is the European. Watch this. Sunday morning, Sunday afternoon, Sunday evening. I mean, that would be a significant amount of snow, especially across parts of the northeast and interior New England. That'll be Saturday, Saturday night. Regardless of the strength of the storm, one last shot of cold air comes Sunday into Monday.

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