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Feb 12-13 Sleet/Snow/ZR Event


JoshM

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Canadian putting out 6-8" around CLT... I think this will end up being one big drawn out system and less of two separate systems where the southern s/w will come in and enhance the low in place driven by the leading wave. The model does phase with the polar energy late... should it occur a bit earlier, precip could be significantly more as the low bombs off the coast.  Just something to watch.  Right now, it's already looking like a big winter storm for many.

 

yG2gFd9.gif

 

Def don't want to be farther south with the freezing rain threat.  I hate that stuff and have never had a good experience with it. Good luck!

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Larry, it appears that the CMC is a massive ZR or IP storm for GA.  2m Temps, from weather bell, look pretty dang cold as all of mid and NGA go below freezing by 0-6z Wed right as that 2nd mass of moisture comes in.  Lines up very well with EURO And now the GFS (verbatim its the coldest at 2m of the 3)

 

Edit:  CMC has about 1-1.30" QPF around here and up to ATL-AHN in that time frame...WOW  and almost 2" total qpf for both events around MCN

Chris,

Wow, I'll have to check that out. That sounds pretty wicked! It definitely sounds like the outlier models (NAM and GFS) are caving to the King and company. Now watch the incredibly consistent Euro trick us and suddenly change at 0Z lol. I would be quite surprised if it were to change too markedly.

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I've been kinda sitting on the sidelines here with this storm and haven't said a whole lot...but just looking at the synoptic setup, it is obvious for the North Carolina Mountains/Foothills and Piedmont to cash in, we need that initial s/w to be the more dominant wave. It seemed for a while that the models were converging to that idea but the 0z suite so far as added a bit of doubt into that, especially the GFS.

 

Of course the Euro runs would be pretty much a combo of both shortwaves combined into one prolonged event that begins as snow and transitions to possible mixed precip even up here in my neck of the woods.

 

I know a lot of my local friends on social media have been asking for my take...and sadly enough I've had to wait until tomorrow because there is some sense of the unknown...lets face it the American models flip around more than the guy cooking on the grill at Waffle House so I have been leary no doubt.

 

 

I will say this much, if we can get the lead wave to be the main player, we might be able to get the Carolina mountains a significant winter storm (6  inches is my definition of significant) and maybe even further east than that.

 

I've got my fingers crossed!!!

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Canadian putting out 6-8" around CLT... I think this will end up being one big drawn out system and less of two separate systems where the southern s/w will come in and enhance the low in place driven by the leading wave.

 

yG2gFd9.gif

 

Def don't want to be farther south with the freezing rain threat.  I hate that stuff and have never had a good experience with it. Good luck!

Don't forget about your inch if sleet too :-). That would be an incredible storm, matches up with Euro.

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I've been kinda sitting on the sidelines here with this storm and haven't said a whole lot...but just looking at the synoptic setup, it is obvious for the North Carolina Mountains/Foothills and Piedmont to cash in, we need that initial s/w to be the more dominant wave. It seemed for a while that the models were converging to that idea but the 0z suite so far as added a bit of doubt into that, especially the GFS.

 

Of course the Euro runs would be pretty much a combo of both shortwaves combined into one prolonged event that begins as snow and transitions to possible mixed precip even up here in my neck of the woods.

 

I know a lot of my local friends on social media have been asking for my take...and sadly enough I've had to wait until tomorrow because there is some sense of the unknown...lets face it the American models flip around more than the guy cooking breakfast  Waffle House so I have been leary no doubt.

 

 

I will say this much, if we can get the lead wave to be the main player, we might be able to get the Carolina mountains a significant winter storm (6  inches is my definition of significant) and maybe even further east than that.

 

I've got my fingers crossed!!!

Even with the new 0z solutions, WNC still gets a pretty good hit. Asheville looks to get right around .5 inches liquid on both the GEFS and the GEM. Though I believe youre right, in order to get the major storm we were looking at before we need the lead wave to be significant.
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I've been kinda sitting on the sidelines here with this storm and haven't said a whole lot...but just looking at the synoptic setup, it is obvious for the North Carolina Mountains/Foothills and Piedmont to cash in, we need that initial s/w to be the more dominant wave. It seemed for a while that the models were converging to that idea but the 0z suite so far as added a bit of doubt into that, especially the GFS.

 

Of course the Euro runs would be pretty much a combo of both shortwaves combined into one prolonged event that begins as snow and transitions to possible mixed precip even up here in my neck of the woods.

 

I know a lot of my local friends on social media have been asking for my take...and sadly enough I've had to wait until tomorrow because there is some sense of the unknown...lets face it the American models flip around more than the guy cooking on the grill at Waffle House so I have been leary no doubt.

 

 

I will say this much, if we can get the lead wave to be the main player, we might be able to get the Carolina mountains a significant winter storm (6  inches is my definition of significant) and maybe even further east than that.

 

I've got my fingers crossed!!!

Well put. I would like to see a beefed up first wave myself. The second wave does nothing for me. Oh well hope someone gets hammered.

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John WOW...

It has been a while bud. Hope all is well!! I agree...I like where we are sitting. What time does the EURO start rolling out? Thanks for all of your analysis! 

Jason

 around 1am... I'm ready!  Euro's going to hammer us, man. I can feel it.  Don't care if I jinx it :D

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Man... Things are getting really interesting. As GaWx & Delta have talked about... I too think the 2m temps are too warm for most of Georgia, including over here in Columbus. The more I look at things, the more things look really icy for the CAD regions Tuesday night/Wednesday morning. I mean, the GFS has us in the mid-upper 30s in Columbus, but a stronger CAD will send temperatures down. It's going to be fun the next couple of days. LOL!

I think it could get interesting all the way to you as well.  GFS and now the CMC has over 1.25" QPF in that range where it could be all ZR

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Snowgoose

Tuesday looks like a real toughie to me at two meters! The Euro, which is often at least several degrees too warm there, has ~36-7 at ATL-AHN and wedging getting going in the morning with brisk NE winds really bringing in that air from the NE. I see much of PA is below zero then for lows and I know the snowpack up there is pretty impressive. With steady precip. then and 850's at a mere 1-2 C, it is hard for me to believe that temp.s in ATL-AHN wouldn't drop to 32 by around noon at the latest if the wedge comes in like the 12Z Euro has along with steady precip. However, the Euro keeps it at ~33-35 as of 1 PM. When considering the Euro's warm bias at two meters when there's good wedging and steady precip., I really think the Euro would be too warm by several degrees assuming its wedge strength would verify, thus making it quite possible ATL-AHN would be down to 32 or lower by 18Z. Yet, you don't think they 'll reach 32 til 7 PM, similar to what the Euro has verbatim . Thoughts?

Edit: If the +1 to +2 C 850's along with wedging and steady precip. of the Euro were to verify, I 'd expect an accumulating sleetstorm and temp.'s to fall into the middle 20's before the sleet ends Tuesday evening. This is largely based on my study of old wx maps' 850's for times of IP, including the great 2/1979 and 1/1988 4" IP's.

fwiw, I'm happy with tonights runs so far. I haven't had time to talk about it but I'm watching them and have been smiling..although it's still very complicated imo. We'll see what the euro shows.

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HR 54 no change in QPF or H5 energy.  a little slower this run, but colder at 2m and stronger with SFC high...1038 it appears

850s are what i'm following with the first wave since it means more snow/sleet for north ga with it. it's more supressed with the first wave..which probably means more with the second.

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