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Met Winter 20-21: Pattern Drivers & Evolution


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While there's reasonable agreement on a -AO and -NAO persisting into early January, there is some uncertainty WRT whether or not the Pacific side offers any help or not. The EPS develops a +EPO into e

I'm starting to get a little more excited for early-mid December. It looks like the Pacific jet will retract significantly, which is the real reason for the retrograding Alaskan LP. Upper level diverg

I think that we are going to see a pretty impeccable 500mb pattern after January 10th.    The -NAO originally forced by wave breaking (which is occurring in the very near future) will become

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BAM

How we open Dec.

 

Great job @Grace and I know Greg was N too, but when we bought the warmer opening to Dec, then we caught it later but she was 1st and  never waivered.

Posted November 16

1. DEC 1-25...much colder east of Rockies. A very good stretch of winter...especially DEC 8-25. A very brief cool shot 1st week of DEC begins the change. 

 

 

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4 minutes ago, RAllen964 said:


Fair, but I wasn’t envisioning a ULL set up for it. 
 

Would prefer that ULL to be further east. Hopefully we can get there 

 

That may run to Chicago or go east of Eric.

I like horseshoe blocks. 

 

Too far to tell.

 

It's beats a 580dm ridge centered over State College tho.

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  • 33andrain changed the title to Met Winter 20-21: Pattern Drivers & Evolution
  • NJwxguy78 changed the title to Mid/Long Range:Met Winter 20-21: Pattern Drivers & Evolution
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