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Late February 2013 Mid-Long Range Discussion


TUweathermanDD

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Climo didn't stop 1962 and 1993, just sayin

We can probably in theory get a big (4"+) snow through about April 1 into the cities maybe even a smidge later if it is perfect. But those storms you note are anomalies of course. We are at the point already that we sorta need something special or at least something well built.

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The panel in question from the Euro that Will, Ji and Wx referenced:

With my limited access to Euro maps I may be off but for those in the DC and Baltimore corridor that look to me, with the easterly fetch off the ocean, suggests major BL issues until you get out a good bit to the north and west of the cities or have some decent elevation to play with. I would think this basically implies a mostly sleet and potentially freezing rain storm for the 95 corridor. There would probably be some front end snow as well as back-end snow as the winds shifted though.

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Just saw the euro. Holy crap. Looks like an Ashe wed replay only a little colder. Given how the h5 has looked on the ensembles the last few days I've been waiting for an op run to show this kind of solution. Given the pattern this is def one of the permutations. Now if we could just buy this and lock it in wonder how much we could raise in this forum.

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Just saw the euro. Holy crap. Looks like an Ashe wed replay only a little colder. Given how the h5 has looked on the ensembles the last few days I've been waiting for an op run to show this kind of solution. Given the pattern this is def one of the permutations. Now if we could just buy this and lock it in wonder how much we could raise in this forum.

You don't think there would be issues with a warm nose nudging in at some level? Not that it matters on a day 8 model run I guess.

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With my limited access to Euro maps I may be off but for those in the DC and Baltimore corridor that look to me, with the easterly fetch off the ocean, suggests major BL issues until you get out a good bit to the north and west of the cities or have some decent elevation to play with. I would think this basically implies a mostly sleet and potentially freezing rain storm for the 95 corridor. There would probably be some front end snow as well as back-end snow as the winds shifted though.

Details 8 days out is crazy but as is dc would have mixing issues during the height of the storm but some front end snow and a ton of back end as the low drifts east.

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With my limited access to Euro maps I may be off but for those in the DC and Baltimore corridor that look to me, with the easterly fetch off the ocean, suggests major BL issues until you get out a good bit to the north and west of the cities or have some decent elevation to play with. I would think this basically implies a mostly sleet and potentially freezing rain storm for the 95 corridor. There would probably be some front end snow as well as back-end snow as the winds shifted though.

 Its 8 days out and you are drilling down to that? We have been over two years since an area-wide WSW criteria event of any kind. If that map yields 2-4 inches of anything frozen this deep into March, its a win. 

 

For gawdssake, it probably won't even be there at the run this afternoon. First things first. 

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Details 8 days out is crazy but as is dc would have mixing issues during the height of the storm but some front end snow and a ton of back end as the low drifts east.

I have seen several storms similar in setup throughout the years where you would think major snowstorm and yet besides some front end snow and a little backend we end up with a major sleet storm with highs in the mid to upper 20's. But again we are talking 8 days out so it is pretty irrelevant.

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The 6z GFS kinda has it too, just slides it off the coast south of us, but it also has a storm. Maybe worth keeping half an eye on. Beats tracking 40 degree highs and clouds anyway.

Need consistency before giving this any hope of actually happening

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 Its 8 days out and you are drilling down to that? We have been over two years since an area-wide WSW criteria event of any kind. If that map yields 2-4 inches of anything frozen this deep into March, its a win. 

 

For gawdssake, it probably won't even be there at the run this afternoon. First things first. 

Just discussing what the model itself showed. Considering that this is 8 days out I would think you would understand this is nothing more then speculation and learning how to read and decipher what the model itself shows. Do I need to put a disclaimer on everything I post even for the most obvious things? Let me know if that would satisfy you.

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You don't think there would be issues with a warm nose nudging in at some level? Not that it matters on a day 8 model run I guess.

I don't mind analyzing a model run even if its unlikely to happen. It's a learning experience. Your right the low gets a bit to close but a few factors to consider. These march storms can be very intense and wrap up tight. At some point the low occludes and that cuts off waa. Also these lows that cut off and stall then drift east like Ashe wed 62 and march 58 can produce major back end snow. Usually with a storm moving on a northward trajectory if it passes too close you dry slot or change over then by the time the low moves far enough east it's also north of us and its over. With a storm sliding east we do get wrap around. So yes dc would have mixing issues but this would still end up a big snow there and historic for iAd and jyo.

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I have seen several storms similar in setup throughout the years where you would think major snowstorm and yet besides some front end snow and a little backend we end up with a major sleet storm with highs in the mid to upper 20's. But again we are talking 8 days out so it is pretty irrelevant.

 

 

Name the last "set up" like this.. 

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