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Pattern Failbruary Thread


Combo of MJO (phase 4), NAO/AO (remaining strongly positive), and PNA (headed from positive to negative) still suggests warmth dominating the SE US after around 2/20-21. If the MJO would move steadily enough, perhaps it will get around back to the cold March phases of 8-1-2-3 by 3/10 or so (allowing an average of 4-5 days per phase) and then lasting til late March. By then, prime climo for SE wintry precip will have ended a week or so earlier. However, occasionally mid to late March has produced some notable SE storms like in 1914, 1924, 1940, 1960, 1971, 1974, 1981, 1983, 1993, and 2018. Of those, ATL had big mid to late March hits in 1924, 1960, 1971, 1983, and 1993. Also, I believe ATL had a nice one in the late 1800s though I have to check. So, about once every 12 or so years in a place like NC and about once every 25 years in ATL. For what it’s worth (not much admittedly), ATL is due. Keep hope alive as once every 12-25 years for something big and a good bit more often than that for something smaller means it isn’t just a pipe dream.
 
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May be a severe threat. Just saw a local meteorligist tweet about it. Been looking at the snow chance and didnt realize there may be severe weather down the line.

Everything looks to be vertically stacked, looking more like a north Alabama into Kentucky and Arkansas/Tennessee threat right now though. Sounding out of Mississippi. Geez Louis better setup by far than the one last week. High ceiling event by the looks right now . A bit
of a skinny cape profile on the sounding though. But winter time events that's pretty good. 2022021012_GFS_177_31.34,-91.38_severe_ml.png
 
An impressive 6 of 20 GFS ensemble members(using COD weather members) have a direct winter storm hit for Upstate, SC in the 216-240hr timeframe. A few more members are a little too warm for SC, but give the NC piedmont a decent ice hit.
 
Intresting, may be a dryline associated with the system next week. How far east it makes. Don't know, usually your bigger events have a dry line associated with it. Tapping into all available moisture.
 
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