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Active Winter Pattern Shaping Up - 12/30/13

So far this season we've seen our share of cold temperatures and snow, with the biggest snowfall coming on December 14. Temperatures have been well below normal since November and there's no sign that's going to change anytime soon. Sure, we've had our warm spells, but overall they've been islands in a sea of cold.

Looking forward we have a busy couple of  weeks coming up. The global indicators (NAO, AO, PNA, EPO, etc) are lining up for a cold and snowy pattern across the eastern US. So the question is will the pattern deliver?

In front of us in the near-term is the potential storm on Thursday. There's two possible scenarios and both have a 50/50 chance of happening. The first is for a storm to form to our south and come up into the mid-Atlantic and eventually up the east coast. That would bring a sizable storm to the area likely exceeding what we got on December 14. The other scenario features a storm to our west cruising through and producing widespread 2-4" amounts across the area. So stay tuned over the next few days as the storm draws near.

The other items I'm watching include the probability of single digit above and below zero lows Saturday morning, another  possible snow event Sunday night into Monday and then a nasty shot of arctic air next Tuesday. The cold air for next week looks very impressive, even this far out. Perhaps a cold snap like we haven't seen since the mid 90s.

So there's plenty to watch over the next week or so, and winter's only just begun!

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Edgar Snyder

Washington Times