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Dec 16-20 Snow/Mix events - Going over like a fart in church


HoarfrostHubb

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After today's 12z suite, we have an interesting set of solutions.

The GFS is a very weak overrunning wave that dumps maybe an inch or 3 into SNE/CNE during the day on Sunday...esp north of the pike. Maybe some mixing/ice issues south of that in the interior.

GGEM focuses the energy on wave #2 for this first event...thus producing a huge snowstorm for SNE on Monday Dec 17...with some weak mood snow on Sunday afternoon into Sunday night preceeding the main show.

Euro actually has two back to back events on Dec 16 and Dec 17 into early Dec 18. I'm pretty skeptical of getting two seperate events that quick from eahc of those waves. The first is light overrunning snow for Sunday/Sunday night. It drops about 2-4" for most of SNE away from the extreme southern parts. The 2nd wave produces another round on Monday night into early Tuesday morning. About another 2-5" again focuses on SNE. But lighter snows make it into NNE on both events.

Bottom line, even though this "event" or more unlikely, "events", is only about 100 hours out, we are still stuck with a very wide range of solutions.

Wasn't it Dec 17th back in 07 when we had that snowstorm that caused problems...gridlocks all over the place?

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After today's 12z suite, we have an interesting set of solutions.

The GFS is a very weak overrunning wave that dumps maybe an inch or 3 into SNE/CNE during the day on Sunday...esp north of the pike. Maybe some mixing/ice issues south of that in the interior.

GGEM focuses the energy on wave #2 for this first event...thus producing a huge snowstorm for SNE on Monday Dec 17...with some weak mood snow on Sunday afternoon into Sunday night preceeding the main show.

Euro actually has two back to back events on Dec 16 and Dec 17 into early Dec 18. I'm pretty skeptical of getting two seperate events that quick from eahc of those waves. The first is light overrunning snow for Sunday/Sunday night. It drops about 2-4" for most of SNE away from the extreme southern parts. The 2nd wave produces another round on Monday night into early Tuesday morning. About another 2-5" again focuses on SNE. But lighter snows make it into NNE on both events.

Bottom line, even though this "event" or more unlikely, "events", is only about 100 hours out, we are still stuck with a very wide range of solutions.

The only thing we do know, Is there is going to be a system or systems in the 17th-25th period, Somewhere on the east coast.

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The only thing we do know, Is there is going to be a system or systems in the 17th-25th period, Somewhere on the east coast.

Well I'm specifically talking about Dec 16-17 in here since this thread is dedicated to that....but yes. Even if this one somehow is a total fail, I'd be pretty shocked if at least one decent sized system did not impact the northeast between now and Christmas.

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Is there going to be enough cold air to support this/these wave/waves?

If the high noses far enough south...there certainly will be. The high pressure for this wave 1 is still pretty fresh and arctic in nature. There will be below zero temps in far northern NE in N Maine with this air mass most likely. Advecting some of that cold dry air down the CP is the key to keeping this mostly frozen. GFS not that impressed with it. Euro and ensembles are.

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Well if one has to have a model on their side, it is most comforting to have it be the Euro.

Sometimes the euro has these weenie runs and then craps the bed inside day 7, but sometimes it scores a major coup. It's interesting, because many times it is the euro showing the coastal hugger, not the GFS.

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Sometimes the euro has these weenie runs and then craps the bed inside day 7, but sometimes it scores a major coup. It's interesting, because many times it is the euro showing the coastal hugger, not the GFS.

I remember the GFS was wildly amped and inland in the October 18, 2009 Nor' Easter.

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