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Feb. 18-20, 2012 Disco/Analysis


Poimen

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Euro caves to the GFS, although not as extreme, 998 in NW GA transfer to off the Carolina coast, deform band and maybe some p type issues from central TN into central/northern VA, precip does not make it much further n than NJ, OTS thereafter. Good run for DC, still some bl issues to,work out for our am friends, but heaviest axis setting up shop from southern wv though dc. Richmond would be mostly RN verbatim, north of there who knows without looking at soundings.

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Euro caves to the GFS, although not as extreme, 998 in NW GA transfer to off the Carolina coast, deform band and maybe some p type issues from central TN into central/northern VA, precip does not make it much further n than NJ, OTS thereafter. Good run for DC, still some bl issues to,work out for our am friends, but heaviest axis setting up shop from southern wv though dc. Richmond would be mostly RN verbatim, north of there who knows without looking at soundings.

I was interested to see your statement a few posts up about central VA. Are you liking a solution between the Euro and CMC or are all players still on the field at this point?

We do seem to have p-type issues with almost every setup here which is a shame considering the fact that many of the depicted slp tracks are usually good for VA/NC snowfalls.

I feel for you guys and wish the best down there.

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The only glimmer of hope I can offer here(since i noticed this place has cleaned out lol) is something I noticed on the jma/umket tonight. Notice how they both phase the polar/stj waves pretty early resulting in a cutoff forming over the midwest. If that happens(which seems to be a continuing trend), the odds are this SLP will trend stronger and stronger as we get closer. This would also slow the system down. Even with the current solution the EURO has backlash snows over the mountains and northern foothills up into martinsville and several inches near Roanoke. This deformation/change over zone would grow even more intense if the soultion trends this way. So something to watch.

CONUS_JMA_500_GPHTMPVORT_72HR.gif

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The only glimmer of hope I can offer here(since i noticed this place has cleaned out lol) is something I noticed on the jma/umket tonight. Notice how they both phase the polar/stj waves pretty early resulting in a cutoff forming over the midwest. If that happens(which seems to be a continueing trend), the odds are this SLP will trend stronger and stronger as we get closer. This would also slow the system down. Even with the current solution the EURO has backlash snows over the mountains and northern foothills up into martinsville and several inches near Roanoke. This deformation/change over zone would grow even more intense if the soultion trends this way. So something to watch.

That looks like a hell of a severe weather threat, more than the GFS/Euro/NAM are showing...

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Grasping at straws here but the SREF has our low further south and east than the GFS/Euro...NOGAPS is really south and much faster (which helps noone). I'm ready to call the time of death on this one but hey might as well be optimistic.

Also...did I misread it or is the 6z NAM slower than the 6zGFS....would slower help??

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Grasping at straws here but the SREF has our low further south and east than the GFS/Euro...NOGAPS is really south and much faster (which helps noone). I'm ready to call the time of death on this one but hey might as well be optimistic.

Looking at Phils writeup and graphics it seems like the SE ridge is just too strong to let any low go up the coast. IMHO, this storm will be an app runner or an ohio valley runner, just like all the rest for this winter has been.

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Looking at Phils writeup and graphics it seems like the SE ridge is just too strong to let any low go up the coast. IMHO, this storm will be an app runner or an ohio valley runner, just like all the rest for this winter has been.

Yea with the Euro caving to the GFS just don't see this one being anything more than a lotta rain probably even for the mountains as well. Such a shame.

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It is slower, also doesn't do a big phase. Doesn't really helps us much though. At the very end of the run it does show the border sections of VA and NC getting in on some snow.

I'm not hopeing for much but this could still trend a little better the next couple of model runs. I know in years past that the NAM did better at depicting CAD signatures. 6z NAM at 84 hours:

nam_namer_084_850_temp_mslp_precip.gif

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Here's another look at the 6z NAM for dewpts. Surface temps are within (plus) five degrees. Point is; if there is a stronger high to the north and it is able to generate a CAD, this could trend colder the next couple of days......I still think we should watch this closely.

Edit: not sure why the image did not attach but go to http://www.twisterdata.com/ and select NAM as model and then dewpts are under Mosture.

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Agree with Brandon and packbacker. Still just too close to totally throw in the towel. Is it possible fo see a 100 mile shift in 72 hours? sure. Not saying it is likey, but it has happened many, many times.

tw

I don't think it matters which track it takes at this point, the real issue is that there is no "real" cold air available this go around. On top of that, even if the High to the North were to trend stronger, there just isn't a source to bring the type of cold air needed to allow anyone South of Virginia to see any snow this weekend.

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An apps runner is not going to happen in this pattern. There is a 50/50 low and there is some blocking into western greenland. That's why this system has drawn so much attention, b/c the setup is good. But the setup can be good and you can still get a lemon. You only remember the ones that work out. I'm starting to think a miller A is likely. Probably something along the southern deep south to hatteras. Whether this cuts up through central GA/SC/eastern NC remains to be seen. If it does, then climo wise any snow would be very unlikely over NC outside of backlash in the mountains. I still think this track is unlikely based on the setup/watching these over the years. There will be some wedgeing that will prevent that from happening. I also think the models have converged on a different solution since 12z yesterday of phasing the system earlier. However, with the 500 low over new england, the low then get's deflected eastwards. That's this will have a hard time climbing the coast. Also due to the fact there is no ridge out west.

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Hate to say it guys, but the fact is that 50/50 low was a *key* component in us getting enough cold air transported into central NC and it looks like with it not being as strong as previously modeled that it's time to waive the white flag on this one. I just don't see us getting anything wintry of any significance out of it here in central NC. It's a closer call than a lot of folks who haven't been following it closely will realize, but close won't heal our wounds this winter :cry:.

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Hate to say it guys, but the fact is that 50/50 low was a *key* component in us getting enough cold air transported into central NC and it looks like with it not being as strong as previously modeled that it's time to waive the white flag on this one. I just don't see us getting anything wintry of any significance out of it here in central NC. It's a closer call than a lot of folks who haven't been following it closely will realize, but close won't heal our wounds this winter :cry:.

You are correct and all this will do is rub salt in the wounds. Time to find your favorite cliff.

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