Thursday, December 7, 2017

Quite the Pattern For Early December

The energy and amplitude of the jet stream is "off the charts" from what I observe not only currently, but well into the future.  Snows deep into the Lower Rio Grande Valley and deep south with a solid nor'easter, albeit a tad strung out, moving off the east coast this weekend followed by what I believe will be what will feel like brutal cold for the bulk of next week.  This high amplitude pattern is fanning the flames via the oft feared Santa Ana Winds at this time of year in southern California as well!  Let's take a gander...

First, a widespread view of the short range reliable NAM for accumulating snows across the eastern US.  That's quite a swath of snow from TX to ME...wowser!
New Orleans will miss out of the fun since Lake Ponchartrain will keep the City of New Orleans warm thanks to the northerly flow over the near 60ºF water.  There will be NO SNOW FOR YOU!  Still impressive for December 8!

This storm just missed "phasing" as seen in the 500 mb anomalies...note the energy in the south just missing perfect north-south alignment with the digging upper energy from the arctic!

Note the low surface pressure over the lakes and the low over the gulf stream in the Atlantic...a near miss!
But that's not the only game in town!  There will other opportunities for these short waves join forces and spin up an appreciable snowfall in these parts before the big guy heads south in a couple of weeks!  That is one deep trough and very low upper atmospheric heights for this time of year...aka...lot's of potential!

It will be cold to be sure as the graphic below is a FIVE DAY mean temp anomaly!  Brrrrr...
OK...gotta run.  You know the drill; my pups are nosing at me wanting their kibble.  Ziggy and Zola's biorhythms are more reliable than  Hillary's email servers!  So with all of that said, I'll leave you with a version of White Christmas that I thoroughly enjoy and I hope y'all will too!


I'm out...

Smitty

AA:  Cold and getting colder!  Just missing out on a nice snowfall Saturday; wide right!  But there are other ducks on the pond so to speak.  Stay tuned!

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