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Pattern Jan 2025 Powered by Rheem AC

We're so close to reeling in the big one during the 2nd week of January on the GFS, EPS, & GEPS.

If we can get the mean trough axis on the ensembles to dig/slow even just a little bit more like the GFS shows... oh boy.

No matter what though, we are in for a rather prolonged & brutally cold stretch after the first week of January.

eps_z500_vort_us_45.png

gfs_z500a_us_45.png

gfs_mslp_pcpn_frzn_us_44.png
 
Euro AI just cut off and hung back out first our wave… that’s new? Turns in to a major winter storm when it does pull out at hr198.

Not gonna lie, I'd honestly prefer that scenario compared to where we currently are on most guidance (tho we are trending towards this more extreme AIFS camp)

An even slower wave lets the big high and arctic air mass over the Plains get out in front of this wave into a much better position for CAD/overrunning.

ecmwf-aifs-all-conus-mslp_anom-6251200.png
 
Not gonna lie, I'd honestly prefer that scenario compared to where we currently are on most guidance (tho we are trending towards this more extreme AIFS camp)

An even slower wave lets the big high and arctic air mass over the Plains get out in front of this wave into a much better position for CAD/overrunning.

View attachment 157890
Geez that’s a southern trend
 
We're so close to reeling in the big one during the 2nd week of January on the GFS, EPS, & GEPS.

If we can get the mean trough axis on the ensembles to dig/slow even just a little bit more like the GFS shows... oh boy.

No matter what though, we are in for a rather prolonged & brutally cold stretch after the first week of January.

View attachment 157886

View attachment 157883

View attachment 157884

With the -NAO/-AO signal it’s certainly possible. I’m ready to see how the model suites trend in this really favorable pattern coming up, we gotta squeeze the lemons while we have a few.


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Not gonna lie, I'd honestly prefer that scenario compared to where we currently are on most guidance (tho we are trending towards this more extreme AIFS camp)

An even slower wave lets the big high and arctic air mass over the Plains get out in front of this wave into a much better position for CAD/overrunning.

View attachment 157890
This look should work 9/10 times.
 
Not gonna lie, I'd honestly prefer that scenario compared to where we currently are on most guidance (tho we are trending towards this more extreme AIFS camp)

An even slower wave lets the big high and arctic air mass over the Plains get out in front of this wave into a much better position for CAD/overrunning.

View attachment 157890

That’s what’s bothered me about the first one, there hasn’t been a lot of high pressure in the NE yet, and it’s a race between the real cold and the high getting there and the moisture.

It may happen, slow down which would great…but if not that’s fine it’s the start of a great period where anything could pop and cause a storm.
 
Not gonna lie, I'd honestly prefer that scenario compared to where we currently are on most guidance (tho we are trending towards this more extreme AIFS camp)

An even slower wave lets the big high and arctic air mass over the Plains get out in front of this wave into a much better position for CAD/overrunning.

View attachment 157890
See now we can both agree on this! I don’t give a rip about when it snows and if the 1/6 threat has to hold back longer to give us a big dog, so be it.
 
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I mean…most of the SE US has at least a 50-60% or higher chance of seeing measurable snow…that in itself is encouraging to me.


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17fe80687f79306f14f96fbdfdf4851e.jpg

I mean…most of the SE US has at least a 50-60% or higher chance of seeing measurable snow…that in itself is encouraging to me.


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Sent from my iPhone using Tapatalk
That map tells you there is going to be some cold air in place when Central Florida is even showing a percentage above zero for snow!
 
Euro AI just cut off and hung back out first our wave… that’s new? Turns in to a major winter storm when it does pull out at hr198.
That's eye-popping to see the wave enter the west coast in S California. That's straight El Nino with blocking in place up top.

SV Clown map included below

dNOwWvu.png


GU2oLKy.png
 
That snow footprint looks similar to the 12Z UK
I know I'm a broken record, but especially when the UKMET starts displaying some consistency, it can score a coup. Historically, it has always been one of the best verifying models at H5 and this is all about those H5 features.
 
Dang, that's dramatic. Will be interesting to see if anything else follows it but certainly we've both noted the trends in the GFS/GEFS heading there.
Never know how things end up, but yeah, if there is ever a case for south trends, it's when we have the heavier neg AO/NAO
 
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