What the heck?! A double barrel low?? What in the heck would the show on the surface. WowUhm. What's happening here?
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Wintry January 3rd-6th, 2018 Winter Storm The ARCC/Xtreme Weather Special
- Thread starter TheBatman
- Start date
ForsythSnow
Moderator
That could just be a surface low that we don't need to even worry about. On the other hand, what in the world is going on and if that showed up, there has to be some kind of moisture in there, right?
Uhm. What's happening here?
Webberweather53
Meteorologist
Not sure if it's related to the topography of the appalachians, but this is a very potent upper level trough and there's likely to be some precipitation underneath it esp over the mountains w/ an assist from orographic lift
RollTide18
Member
Webberweather53
Meteorologist
Appears the 00z UKMET run may have ticked west.
Yep, the main low is well offshore, but there's so much lift & diffluence underneath the parent upper level trough axis that a nice extrusion of precipitation extends well to NW all the way into the piedmont of the Carolinas on this run
Miller B to Bahamas!Uhm. What's happening here?
Stormsfury
Member
Resembles a norlun trough in some aspects...
Clem282340
Member
What does a Birmingham trough do
Clem282340
Member
Norlun trough do
Well I would say that's getting pretty close to me as wellAppears the 00z UKMET run may have ticked west.
That's very close and def further west
Blue_Ridge_Escarpment
Member
It can’t get to Greenville tho per some.
Webberweather53
Meteorologist
Yep, it does to some extent, norlun troughs take unpredictability to a whole other level and global models rarely resolve or accurately predict their placement, evolution, and intensity. Mesoscale models can perform okay-ish inside 24-30 hours or so but I wouldn't go out much further than that
Cad Wedge NC
Member
It was explained earlier in this thread...... precip extends well to the NW of the low pressure center. More common in higher lattitudes..
That German joint came NW
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Sent from my SM-G955U using Tapatalk
GEFS slightly less fwiw....
whatalife
Moderator
.25 qpf to Wake Co. and .4 to my area... not too shabbyThat German joint came NW
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Webberweather53
Meteorologist
GEFS slightly less fwiw....
Overall about the same precipitation wise in NC, actually increased a little south of Raleigh, decreased a smidge in the northern coastal plain and tidewater and about the same for the Triangle
tonysc
Member
Very light snow falling in Greenville, SC right now.