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Pattern January 2020 - Operation Thaw Alaska

I'm Stephen and I'm also new to the discussion board. I enjoy the enthusiasm for winter weather on here. and weather in general. I've lived in NC for 39 years and I have seen warm days like the ones we are currently experiencing. It does make one wonder if winter makes a comeback. I honestly don't believe ( history tends to back this up) that we can go thru an entire winter without getting some sort of payback from mother nature. There is alot of cold air over Alaska/Siberia (-40 to -60F) and it has to get dislodged at some point. Now where exactly the core of this super cold air goes is up for debate, but do believe we can't go thru an entire winter and not get at least some snow/ice in the south. I'm model watching like y'all are, but let's give it time and be optimistic.

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Welcome to the forum that is 20% weather discussion and 80% whining. Also be sure to visit the dedicated whining thread and buy something from the gift shop. But hey, at least no one bites here.
 
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And the Weather channel chiming in...


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Whew that is very reassuring to me since the Weather Channel is about as accurate as a blind man throwing darts!
 
Welcome to the forum that is 20% weather discussion and 80% whining. Also be sure to visit the dedicated whining thread and buy something from the gift shop. But hey, at least no one bites here.
The ratio seems pretty in line. After all, winter is 20% winter and 80% poop.
 
Let’s be honest though our average snow every year is like 4-6 inches ... we only average maybe a good storm a year and we’re really expecting storm after storm to come along ... maybe we over expect too much every year .. we live in the southeast it don’t snow here
 
Let’s be honest though our average snow every year is like 4-6 inches ... we only average maybe a good storm a year and we’re really expecting storm after storm to come along ... maybe we over expect too much every year .. we live in the southeast it don’t snow here

Yes but in past years we at least have signs whether they verify or not, the models the past 2 weeks have painted a rather bleak picture.
 
Let’s be honest though our average snow every year is like 4-6 inches ... we only average maybe a good storm a year and we’re really expecting storm after storm to come along ... maybe we over expect too much every year .. we live in the southeast it don’t snow here
Yes and we're going on 13 months without a single threat to track. That's not normal for even the south.
 
Wrong we had storms in March and January last winter definitely trackable events
I don't remember anything making it inside 5 days on multiple models to be called a threat except for December. The FV3 junk may have sucked some people in 3 or 4 days out. and maybe an 84 hr NAM, but never remember anything with real model support and a chance of verifying. Unless you count that April flizzard.
 
8c3efcef0abdb171f0771042474444bf.jpg


And the Weather channel chiming in...


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Unfortunately ,this might be one of the few times where TWC may be correct.With with MJO likely going into warm phases and with the PNA,NAO,and AO being in unfavorable positions,I'm really not expecting much cold for the month of January,atleast until the 2nd half of the month anyway.
 
If there one thing that’s “consistent”, it’s that there’s a transient troughiness signal around hour 190-240 in the eastern US, models that show this : GFS/Euro, GEFS/GEPS (yes it sucks but it’s sum slight) and let’s see what the eps says, if you wanna score that pattern can deliver, but yeah that run of the euro basically flipped the PNA and Got a East based -NAO
 
From the looks of the free maps, there are some downright cold members in there as well. A good handful are well warmer however, but the cold ones range from freezing to near zero in places.

Maybe some of those colder ones have more ridging poking into the west coast along with a AK ridge instead of a Aleutian/GOA ridge
 
Wrong we had storms in March and January last winter definitely trackable events
Not to mention snow on 3 different occasions this season in northern Middle Tennessee including almost a half inch here in early November. It’s not just here either as I’m pretty sure places in Alabama and Georgia also got snow earlier this month. Eastern Tennessee has also done quite good so far this winter. Now I’m not saying the pattern isn't concerning considering what happened last year, but I’ve seen far far worse starts to a winter at this point in the season in prior years.
 
View attachment 29141
Looks like EPS agrees with Op

This period (Jan 5-15) I highlighted a few weeks ago seems to be living on & the pattern change appears to be roughly on schedule. I'll definitely admit, it's not how I envisioned we'd get there w/ the strong tropospheric polar vortex migrating towards Alaska but w/ tropical forcing temporarily returning to the western Hemisphere at the beginning of January & a chunk of the vortex appearing to migrate towards SE Canada & the Lakes, plus the active subtropical jet we've had this winter, I think an opportunity could appear on the horizon in this period of time, which is also near our peak climo for cold.

"...I think a legit window of opportunity for us to pot a winter storm is starting to emerge just before the mid point of January (Jan 5-15 ish)..."
https://southernwx.com/community/threads/the-great-december-dump.650/page-116#post-220711

"I'd wager that the pattern flips for us around January 5-10 ish."
https://southernwx.com/community/threads/the-great-december-dump.650/page-114#post-220390


Based on some back-of-the-envelope research I conducted a few winters ago, if we get a winter storm in this pattern, it would tend to occur about the time -VP200 anomalies associated with this slow moving Convectively Coupled Kelvin Wave reach 30-60E longitude, where an upper level westerly wind duct opens up near the equator & encourages equatorward wave propagation in the W Hem. Empirical wave propagation (i.e. extrapolating the propagation of this CCKW forward in time) also would support a threat window sometime during the 2nd week of January (January 8-14) with a day or two of wiggle room on either side.

It would be kind of fitting to have a threat in this period because I have to leave for conference in Boston ~January 11th-12th.

vp200.GFS.anom.KELVIN.5S-5N.png
 
According to an accuweather lead long-range meteorologist, it will cool down some after the first week of Jan and then return to above normal for the second half of Jan. So we have a 7 day window to score.
 
I had an epiphany today out at the links. The southeast is the new Florida. I think it’s time to accept that. I’m kind of ok with that new reality. It will still snow, sometimes..and those days will be magical. But the days in between will be the days that I live for. And that’s ok..EDIT: read that slowly and more than once..my apologies!
 
Waiting on game to start. Here’s a similar pattern that had a SE winter storm.

There was some extreme cold involved in that 1982 system. Eastern Kentucky and Eastern Tennessee had mid 10s below 0 lows and upper single digit to low 10s for highs. Lots of upslope snow too, main system had 4-6 inches here but snow fell on 8 consecutive days. The first 8 days of January that year were really warm too, around +10. The rest of the month was so cold here it finished up -7 for January. Huntsville and Chattanooga got below 0 that outbreak. Athens, Ga had a high of 70 on January 7th and a low of 0 on the 11th. Atlanta went from 67 to -5 from the 7th to the 11th with about 6 inches of snow over 3 days.

So that look can apparently produce huge winter results.
 
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