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January 15th-17th 2024 Arctic Blast/Snow Event


John1122
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FFC:

URGENT - WINTER WEATHER MESSAGE
National Weather Service Peachtree City GA
314 AM EST Sun Jan 14 2024

GAZ001>003-142000-
/O.UPG.KFFC.WS.A.0001.240115T1200Z-240116T1200Z/
/O.NEW.KFFC.WS.W.0001.240115T1200Z-240116T1200Z/
Dade-Walker-Catoosa-
314 AM EST Sun Jan 14 2024

...WINTER STORM WARNING IN EFFECT FROM 7 AM MONDAY TO 7 AM EST
TUESDAY...

* WHAT...Heavy mixed precipitation expected. Total snow
  accumulations of up to two inches and ice accumulations of up
  to one tenth of an inch.

* WHERE...Dade, Walker and Catoosa Counties.

* WHEN...From 7 AM Monday to 7 AM EST Tuesday.
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4 minutes ago, John1122 said:

I take that back. The NAM was colder over Knox Co and didn't have the p-type issues so instead of 3.5 inches Knox was covered by 7+ inches on the 12k. The 3k still has the p-type issues along and S of 40.

Yeah 12km is a minor tick better for eastern areas but still a massive difference between hrrr and NAM. Inside 24 hrs now...:wacko:

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13 minutes ago, TellicoWx said:

Looking at the 6z runs so far, think they are right. You can almost trace the spine of the Apps from WV thru TN with the accum maps. 

I noticed that as well.  I do find it hard to believe the RGEM scours out the cold. I go from  21 to 36 on the RGEM Monday with snow falling. Doesn't add up. 

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8 minutes ago, fountainguy97 said:

I noticed that as well.  I do find it hard to believe the RGEM scours out the cold. I go from  21 to 36 on the RGEM Monday with snow falling. Doesn't add up. 

Think it's more of an algorithm issue...some models struggle a little more than others with high terrain features as far as exact locations. Rockies are a prime example, resolution is almost non existent there.

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This could be one of the best 24 hour snowfalls the valley has seen in a long time! 
The GFS, Icon, just unload on the valley….. this one is gonna be fun to watch! 
With brutal cold in its wake, it very well should stick around for a bit! 

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