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1/28 - 1/30 Storm Thread II


burgertime

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Oh how I wish the NAM would verify for KCAE:

 

StnID: kcae    Profile Thermal Adjust:  0.0       Cloud RH threshold:  85%    Average Hourly Sounding: NO

 Date/hour    FHr  Wind    SfcT   Ptype   SR |Snow||Sleet|| FZRA|| QPF    CumSR|TotSN||TotPL||TotZR|| TQPF   S%| I%| L%
============================================================================================================================

140128/2200Z  58  06009KT  29.4F  SNPL    4:1| 0.0|| 0.01|| 0.00|| 0.004    4:1|  0.0|| 0.01|| 0.00|| 0.00   35| 65|  0
140128/2300Z  59  05008KT  26.1F  SNOW   13:1| 0.1|| 0.00|| 0.00|| 0.011   10:1|  0.2|| 0.01|| 0.00|| 0.02  100|  0|  0
140129/0000Z  60  04007KT  25.4F  SNOW   12:1| 0.2|| 0.00|| 0.00|| 0.014   11:1|  0.3|| 0.01|| 0.00|| 0.03  100|  0|  0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
140129/0100Z  61  04007KT  25.2F  SNOW   13:1| 0.6|| 0.00|| 0.00|| 0.042   13:1|  0.9|| 0.01|| 0.00|| 0.07  100|  0|  0
140129/0200Z  62  04007KT  25.2F  SNOW   12:1| 0.6|| 0.00|| 0.00|| 0.046   12:1|  1.5|| 0.01|| 0.00|| 0.12  100|  0|  0
140129/0300Z  63  03007KT  25.1F  SNOW   13:1| 0.6|| 0.00|| 0.00|| 0.051   13:1|  2.1|| 0.01|| 0.00|| 0.17  100|  0|  0
140129/0400Z  64  04008KT  24.7F  SNOW    9:1| 0.5|| 0.00|| 0.00|| 0.052   12:1|  2.6|| 0.01|| 0.00|| 0.22  100|  0|  0
140129/0500Z  65  03009KT  24.3F  SNOW   10:1| 0.4|| 0.00|| 0.00|| 0.039   12:1|  3.0|| 0.01|| 0.00|| 0.26  100|  0|  0
140129/0600Z  66  03009KT  24.0F  SNOW   13:1| 0.5|| 0.00|| 0.00|| 0.042   12:1|  3.5|| 0.01|| 0.00|| 0.30  100|  0|  0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
140129/0700Z  67  02008KT  23.4F  SNOW   15:1| 0.8|| 0.00|| 0.00|| 0.054   12:1|  4.3|| 0.01|| 0.00|| 0.36  100|  0|  0
140129/0800Z  68  02008KT  23.1F  SNOW   12:1| 0.9|| 0.00|| 0.00|| 0.075   12:1|  5.2|| 0.01|| 0.00|| 0.43  100|  0|  0
140129/0900Z  69  02009KT  22.7F  SNOW   17:1| 1.3|| 0.00|| 0.00|| 0.079   13:1|  6.5|| 0.01|| 0.00|| 0.51  100|  0|  0
140129/1000Z  70  03010KT  22.4F  SNOW   10:1| 0.6|| 0.00|| 0.00|| 0.061   13:1|  7.1|| 0.01|| 0.00|| 0.57  100|  0|  0
140129/1100Z  71  03010KT  22.0F  SNOW   10:1| 0.4|| 0.00|| 0.00|| 0.043   12:1|  7.6|| 0.01|| 0.00|| 0.61  100|  0|  0
140129/1200Z  72  03009KT  22.0F  SNOW   12:1| 0.4|| 0.00|| 0.00|| 0.029   12:1|  7.9|| 0.01|| 0.00|| 0.64  100|  0|  0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
140129/1300Z  73  03009KT  22.0F  SNOW   12:1| 0.5|| 0.00|| 0.00|| 0.039   12:1|  8.4|| 0.01|| 0.00|| 0.68  100|  0|  0
140129/1400Z  74  03008KT  22.2F  SNOW   11:1| 0.7|| 0.00|| 0.00|| 0.057   12:1|  9.1|| 0.01|| 0.00|| 0.74  100|  0|  0
140129/1500Z  75  04009KT  22.5F  SNOW   16:1| 1.0|| 0.00|| 0.00|| 0.060   13:1| 10.0|| 0.01|| 0.00|| 0.80  100|  0|  0
140129/1600Z  76  03008KT  23.1F  SNOW   11:1| 0.4|| 0.00|| 0.00|| 0.037   12:1| 10.4|| 0.01|| 0.00|| 0.83  100|  0|  0
140129/1700Z  77  04008KT  23.4F  SNOW   14:1| 0.3|| 0.00|| 0.00|| 0.023   13:1| 10.7|| 0.01|| 0.00|| 0.86  100|  0|  0
140129/1800Z  78  05008KT  24.0F  SNOW   15:1| 0.1|| 0.00|| 0.00|| 0.008   13:1| 10.9|| 0.01|| 0.00|| 0.87  100|  0|  0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
140129/1900Z  79  05008KT  25.1F  SNOW   10:1| 0.0|| 0.00|| 0.00|| 0.004   13:1| 10.9|| 0.01|| 0.00|| 0.87  100|  0|  0
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actually made them worse up here but they are fun to look at.. I dont know if they would perform and different in your area

Most mets and pro forecasters I believe will tell you around 48hrs and then inside from there although I saw today that they got an upgrade recently and have gotten some good verification scores for the northeast systems this year so..

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The 21Z SREF was a huge boon to those of us on the western side of the state of NC (together with the 18Z GFS).  I thought I'd add Hickory's plumes to the discussion.  We have transitioned from a mean of 0.25 inch of snow at 03Z, to 2 inches at 09Z, to 1.5 inches at 15Z, to 6 inches at 21Z.  Of course, it's a mean, so there are some large values still skewing the mean quite high with five members over 10 inches of snowfall.  On the other side, there are two members still showing zero.  Anyway, I think we get something out of this at KHKY (even if it's relatively small), when it's all said and done.  Soon, we'll have the 00Z GFS to digest...

 

nA0Rcnh.png

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ok, For the new folks in the room remember this does not run for free!! Their is a lot of work to keep this up and running Please do the subscription Drive and DONATE....... This is what keep it up and running year after year!!!

 

 

 

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Done.  Thanks Americanwx!

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The NAM gave a Montgomery to Columbus to Macon line a nasty mix of freezing rain/sleet/snow before FINALLY switching to all snow. Not sure of the totals, but it didn't look pretty. The soundings I saw had Columbus with an ice/sleet storm for over 18 hours. :/

Scout out your hills tomorrow, that will be amazing sledding.  Big hills down around Sprewell's Bluff, lol.  Man, you are getting some of the best Ga can offer.  You need to go buy a lotto!!  Just as long as the 0z's hold serve.  T

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Scout out your hills tomorrow, that will be amazing sledding.  Big hills down around Sprewell's Bluff, lol.  Man, you are getting some of the best Ga can offer.  You need to go buy a lotto!!  Just as long as the 0z's hold serve.  T

Ha! I'll have to find the hills, but only because I'm going to be working (after I was supposed to have the week off...). That's actually not a bad idea... Find where the good hills are so I can have some good live shots! ... If they let me... LOL! I want to go out and enjoy this snow. Unlike the ice storm back in 2011 when I had to work the whole event inside.

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How do the models handle the baroclinic zones that can form between the Apps and the Gulf Stream? Dr. Gary Lackmann at NC State talked about this extensivly in MEA 443. The baroclinic coastal fronts had huge ramifications for precip accumulation during Hurricane Floyd and 1/25/2000 acoording to the research. Curious how much the baroclinic front will have on us this week.

 

TCs interacting with baroclinic zones are a totally different animal. In these types of cases (i.e. extratropical cyclogenesis along a strong coastal baroclinic zone) the convective parameterization (CP scheme) a model uses can have a significant impact on the model solution. Mahoney and Lackmann (2006) studied the February 2004 event and found that the BMJ CP scheme (used by the old ETA/current NAM) generated a weaker coastal cyclone than actually occurred. You can tell when the BMJ is up to no good when you see spurious cyclonic circulations develop along the coastal baroclinic zone.

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