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Winter Begins Jan 20th AWT


40/70 Benchmark

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7 minutes ago, Typhoon Tip said:

That ICON evolution is amazing looking ...  It has the IB snow burst ... terminating as steady ZR/IP (implicit...) south of the pike, with on-gong lighter snow N of that rough longitude... Then, a new low deepens rather rapidly I of NJ and we see CCB blossom from a NYC/LI to SE NH arc 

I was just thinking that I am 50/50 that the 12z euro goes ape$hit.

We'll see.

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1 minute ago, ORH_wxman said:

GFS looks slightly north of 06z through 48h. Amazing that it won't give up despite being the northern outlier right now. Looks like it will double down this run. 

I wondering if it's adjustment happens more abruptly in the 00z per uptake off the Pacific... maybe an 18z sniffer

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1 minute ago, sbos_wx said:

It looked really bad at the beginning stages but appears to have trended SE with the track. Still on the warmer side of things.

GFS definitely starting to catch on that it can't ram that surface low up into that cold press as others have been alluding too.  It's still not sure what to do earlier in the run...

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Using Tropical Tidbits nifty "Previous Run" buttons to toggle version/intervals... I really see 0 meaningful differences at 500 mb on this run compared to any in six clicks backward - 

Do yourselves a favor - don't spend any time needling through this run... 

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Just now, wxsniss said:

I actually thought 12z GFS is a tic southeast, less amped... i.e., a small but definite step towards Euro / UK

And not warmer than 6z run

It was def a bit warmer early on and more amped to the west but it really seemed to run into a brick wall around 66 hours and ended up southeast by the time we got to Sunday morning. 

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Just now, Typhoon Tip said:

Using Tropical Tidbits nifty "Previous Run" buttons to toggle version/intervals... I really see 0 meaningful differences at 500 mb on this run compared to any in six clicks backward - 

Do yourselves a favor - don't spend any time needling through this run... 

Most of the changes we've been seeing on most guidance are cosmetic and mostly noise. Exceptions might be the typical models like the NAM which came back to reality from a very suppressed 06z run. 

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Just now, ORH_wxman said:

It was def a bit warmer early on and more amped to the west but it really seemed to run into a brick wall around 66 hours and ended up southeast by the time we got to Sunday morning. 

It was getting squeezed to the east as it headed NE, It developed late too this run so it had less resistance against the CAD until it was at this lat here.

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