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Pattern January 2017 Discussion

NorthGAWinterWx link said:
Alright y'all, it's looking like the 0z GFS is bringing the first wave further south than the past two runs from today. Snow coming in north and central TX at 174.

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it's actually the euro wave that the gfs squashed at 12 and 18z

18z gfs
a8b9f60b3ef06db1b47badbd1a73c1ff.jpg


00z gfs
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The angle sucks.  the angle sucks!

running it way over some way warmer air and ruining it!
 
Re: January 2017 Discussion

arctic front with energy everywhere can't ask for more

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Storm5 link said:
[quote author=NorthGAWinterWx link=topic=60.msg4137#msg4137 date=1482985731]
Alright y'all, it's looking like the 0z GFS is bringing the first wave further south than the past two runs from today. Snow coming in north and central TX at 174.

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it's actually the euro wave that the gfs squashed at 12 and 18z

18z gfs
a8b9f60b3ef06db1b47badbd1a73c1ff.jpg


00z gfs
f17639c188379e63a237605457aeb989.jpg


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[/quote]
Oh yeah, that's right. The GFS did have the wave further north, turning out to be a cutter on some of the past runs of the GFS.

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That was a pretty good run. Very close to something big. Gfs went towards the euro. It also has a icy look to it.
 
HartselleWeather link said:
That was a pretty good run. Very close to something big. Gfs went towards the euro. It also has a icy look to it.
Yes it does. It doesn't appear to be as cold into Georgia or the Carolinas either from what I can see.


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Precip is not the issue for most of NGA with this run...its the temps.  Surface temps and 850 temps are warm.
 
farleydawg79 link said:
Precip is not the issue for most of NGA with this run...its the temps.  Surface temps and 850 temps are warm.
who cares at this point the setup is there for something special

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Storm5 link said:
[quote author=farleydawg79 link=topic=60.msg4154#msg4154 date=1482986853]
Precip is not the issue for most of NGA with this run...its the temps.  Surface temps and 850 temps are warm.
who cares at this point the setup is there for something special

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[/quote]
I totally agree...the setup is there.....just need to ride the model train to the station!
 
Storm5 link said:
9cd4db21b5e79466a35b54219ba4bc4a.jpg


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Not bad at all. It's looking like there will be a winter storm threat in the south in this time period, it's just a matter of the details being worked out.
 
I do see that 2nd wave coming up at 252...if that low hugs the coast we would get better snow from the 2nd wave. The 1st wave seems like it's going to be a CAD event more than anything. 2nd wave would have more snow cause the colder air would settle in right after the 1st wave. And the placement of the high at 264 is great. 534 thickness values coming down through NC, SC, GA, AL...528 through northern NC, western NC and through central TN.

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I know these maps are pointless but there is such a tight gradient, Northern Mecklenburg county up through Iredell gets clobbered while Southern Mecklenburg county gets very little with the CLT area seeing around 3-5 inches of "snow".
 
Here is the CMC look to it. Very close also to something special. Nice to see some model agreement to the general pattern.
fd1a6c7a26bbc3422924c8173284fe55.jpg



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HartselleWeather link said:
Here is the CMC look to it. Very close also to something special. Nice to see some model agreement to the general pattern.
fd1a6c7a26bbc3422924c8173284fe55.jpg



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True, that is one of the important things to look for, is model agreement.

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The 0Z GEFS is pretty sweet looking for 1/6-8 and is slightly colder than the 0Z GFS then.
 
I know these maps don't mean a lot currently, but I thought WxBell fixed the problem with the snow and ice interpretation on the total accumulation map...

da127b5b16e095505319483e87c3dcb5.jpg


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Thanks for gefs update. Did the mean snowfall increase for Atlanta and your area Storm? How bout SER. Op had it showing its face enough to kind of throw a wrench in temp profiles, unlike euro that buried the SER
 
Also, I'm not quite sure what to make of that GFS run. Maybe Storm or SD can help me with this one...from what I can tell the GFS does something completely weird at the 850 level with winds that throws the temp profile out of whack. If you look at 850 level winds over North Central OK ther is a LP area veering winds out in front from the Southwest, but near the surface the winds are completely opposite in the same area...



850 winds:
2f939391388c9e96d2a7ace187328ba9.jpg


10m winds:
ac52aacad2869860f1b354028a547906.jpg


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tellicowx link said:
Also, I'm not quite sure what to make of that GFS run. Maybe Storm or SD can help me with this one...from what I can tell the GFS does something completely weird at the 850 level with winds that throws the temp profile out of whack. If you look at 850 level winds over North Central OK ther is a LP area veering winds out in front from the Southwest, but near the surface the winds are completely opposite in the same area...



850 winds:
2f939391388c9e96d2a7ace187328ba9.jpg


10m winds:
ac52aacad2869860f1b354028a547906.jpg


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Because 850mb is about 5000ft, the winds are stronger at that height and they can blow in a different direction than the surface winds. 10m winds is about 32ft above the surface so the winds will be lighter.

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NorthGAWinterWx link said:
[quote author=tellicowx link=topic=60.msg4170#msg4170 date=1482990339]
Also, I'm not quite sure what to make of that GFS run. Maybe Storm or SD can help me with this one...from what I can tell the GFS does something completely weird at the 850 level with winds that throws the temp profile out of whack. If you look at 850 level winds over North Central OK ther is a LP area veering winds out in front from the Southwest, but near the surface the winds are completely opposite in the same area...



850 winds:
2f939391388c9e96d2a7ace187328ba9.jpg


10m winds:
ac52aacad2869860f1b354028a547906.jpg


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Because 850mb is about 5000ft, the winds are stronger at that height and they can blow in a different direction than the surface winds. 10m winds is about 32ft above the surface so the winds will be lighter.

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[/quote]
Yeah I understand that, but what I'm trying to figure out was it places a LP center in the exact same spot as a HP center. And if you looks at the GEFS only one member supports that idea E2. Outside of the few that still suppress the system, most other members are very Euro like minus the temp issues the Op and E2 have.

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Outside of the Op and E2 on the GEFS, no other ensemble member placed a LP near OK during that run, which is the cause of the 850 temp issues not a SER.

53e4c51a704a82c5f4c36fb12636787d.jpg


092b335605f54472a7c99732f81c7b39.jpg


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Storm5 link said:
the mean is amazing be so far out
5d329d0fd8e84214af229113f06a769b.jpg


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Yeah the mean is great, and if you take E2 and the OP and discard them cause they're off on an island somewhere lol...it's even better.

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tellicowx link said:
[quote author=Storm5 link=topic=60.msg4178#msg4178 date=1482991749]
the mean is amazing be so far out
5d329d0fd8e84214af229113f06a769b.jpg


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Yeah the mean is great, and if you take E2 and the OP and discard them cause they're off on an island somewhere lol...it's even better.

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[/quote]
Yeah I'm not worried about specific temp profiles this far out . the screaming message is , there is a real threat right around the corner . if we can hold this look and get to the weekend it's game on

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Storm5 link said:
[quote author=tellicowx link=topic=60.msg4179#msg4179 date=1482992013]
[quote author=Storm5 link=topic=60.msg4178#msg4178 date=1482991749]
the mean is amazing be so far out
5d329d0fd8e84214af229113f06a769b.jpg


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Yeah the mean is great, and if you take E2 and the OP and discard them cause they're off on an island somewhere lol...it's even better.

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[/quote]
Yeah I'm not worried about specific temp profiles this far out . the screaming message is , there is a real threat right around the corner . if we can hold this look and get to the weekend it's game on

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[/quote]
I completely agree with you Storm, I was just trying to show other members who may take the OP runs verbatim everytime, to first compare it with the Ensembles to see if it makes any sense. But yeah I think that was a great run by the GEFS, showing two camps...one of suppression, which is good at this stage, and the other camp supporting the EPS with the over running idea.

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