January 28, 2011 - Another Messy Mid Week Next Week

By: Mallory Brooke
By: Mallory Brooke

And we're back to watching the computer models...but there's the possibility that we may be just warm enough to get rain out of the next system - read all about it in today's blog.

Good morning everyone! After a couple of snow showers in the morning - we're back to plain gray skies outside. We may have a few pockets of sun later on Friday, but no promises. Only a select few will see 'em.

Moving into Saturday, another clipper is going to brush to our north and then dive down to the southeast. This may clip NE parts of Clarke & Frederick County, but the majority of it will stay out of our area. We'll clear out Saturday afternoon and keep clear skies through Sunday morning. More clouds build in Sunday evening ahead of our next storm system, which looks to be another doozy.

It's a little early to pick it apart model by model - as this would be more of an early Wednesday morning through Thursday morning event. That means we're still 5 days out and models will continue to flip around.

Here's what we know. There's going to be a very potent southern stream system moving up the eastern seaboard Wednesday. Of course low track is extremely important, but I think what is most important in this system is the cold air.

This is what models are diverging with - the strength and power of the high pressure in Canada. This high pressure is what would deliver the cold air into the Valley, giving us some sort of frozen precipitation because of cold air damming. Obviously the stronger the high pressure, the more cold air that would be pushed into our area. We also need it in the right spot - SE Canada. Any deviations from that will cause the damming to be weaker and less cold air will move into the Valley ahead and during this storm. Similar to the last system, we shouldn't be "excited" until Sunday night/Monday morning as models come in to better agreement.

Of course I'll keep you updated over the weekend with the latest. Happy Friday!

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