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NYC/PHL Jan 18-19 Potential Threat Thread


am19psu

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I lived in Allentown from about 2004 through 2009. I do recall one winter where the temps got near 0 one night. It seems like it was within the last 4 winters, but that is the coldest I've got to in recent years. Do you think this would rival that, as modeled? I'll have to check Mt Holly climatology info to see what night that was.

im not sure what the thicknesses were for that time period. But if you have a sub 498 thickness over (hopefully) a snow pack, with -22 to -24 850s the cities would deff be in the single digits and burbs i would say below zero.This is assuming we have light winds and no clouds to. A good look would be to look at feb 2007 with that cold outbreak, with the slizzards. A couple of those days were brutal.

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good lord its brutally cold on the gfs after that mauler. If we can have somewhat of a snow pack with sub 504 thickness, that could be the coldest day/night in years, assuming no wind.

Do not worry, it will be cold. The snow pack will be down to three inches or less and will be sufficient enuf for significant radiational cooling to take place with temps down zero or slightly below zero. What I see happening is right after this cold wave starts-3-4 days later , we will get pounded with a snow event. The cold air will be fresh and ready for it. By the way- after 2-4 inches of snow for the ABE area with this storm, we go to period of freezing rain then back to snow for a quick coatin. The snow pack will take the freezing rain after it initially leaves a ice crust on top of the snow

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im not sure what the thicknesses were for that time period. But if you have a sub 498 thickness over (hopefully) a snow pack, with -22 to -24 850s the cities would deff be in the single digits and burbs i would say below zero.This is assuming we have light winds and no clouds to. A good look would be to look at feb 2007 with that cold outbreak, with the slizzards. A couple of those days were brutal.

ABE reached -2 in 12/2005 and around 0 in 3/2007. It was one of those months. As I recall, there was no snowpack but it was the coldest I remember since living in the northeast (2004) and for that matter in my life. Coming close was a "day: I spent sampling in Massena, NY where the high was around 5 above about 5 years or so ago.

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I lived in Allentown from about 2004 through 2009. I do recall one winter where the temps got near 0 one night. It seems like it was within the last 4 winters, but that is the coldest I've got to in recent years. Do you think this would rival that, as modeled? I'll have to check Mt Holly climatology info to see what night that was.

1993-94 was the winner. There were days when I drove to work and the snow and ice remain on the road was snow packed on Brookside Rd Rt 222, even for us and was below zero a bunch of days. I remember my digital thermometer locked up at -25 below zero and would not reset and we had ice fog in backyard along the Little Lehigh because everything was frozen except the creek because it was spring fed. All the trees were iced over as well as as on my cars from the fog. Many people could not even open their car doors because of frozen gaskets and not frozen locks.

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The way the GFS has been too east this winter and the fact the progressive NOGAPS is showing the same track as the GFS may mean the GEM is more correct.....the Euro and GFS ensembles will help alot...this is a different system than we've been dealing with all winter and its possible that the GEM west/warm bias is playing in more.

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The way the GFS has been too east this winter and the fact the progressive NOGAPS is showing the same track as the GFS may mean the GEM is more correct.....the Euro and GFS ensembles will help alot...this is a different system than we've been dealing with all winter and its possible that the GEM west/warm bias is playing in more.

84 hrs is pretty much similar to the GFS

GFS

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Anyone want to guess what direction the GFS soundings have the winds from at 78 and 81 hours based on this depiction for LGA/JFK????

If you said SE you would be right....that would make the GFS very very very wrong...if you think what I just said sounded "DTish" you would also be right

this is yonkers sounding at hr 78, but yes a southerly component

GFS_3_2011011500_F78_41.0000N_74.0000W.png

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good lord its brutally cold on the gfs after that mauler. If we can have somewhat of a snow pack with sub 504 thickness, that could be the coldest day/night in years, assuming no wind.

most likely the mauler would blow up off the coast and keep us pretty breezy the first night, much like this week. maybe the second night though.

I wonder if PHL gets back down to single digits...

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hr 84 looks exactly like gfs it has like an extention of a low towards our area with the stronger area of low pressure like 200 miles off hse

hey tombo isnt that a weird looking low at hr 84? lol almost like a mini cane

this is my last post, but i just wanted to throw it out there

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