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December Med/Long Range Disco


WinterWxLuvr

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Not a bad original GFS run. Here's my analysis:

 

Looks like the 29th event is a 40N storm (although verbatim mapgirl gets a few inches). The 31st storm didn't really change much. All snow with a good sfc. Hr 150 all the way to 252 is below freezing at the sfc. Then there's a "warm"-up on the 3rd/4th (upper 30s) but then the Arctic Annihilator comes roaring back and we're frigid hr 288-onward.

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I think Don S pissed off the ao with his post this morning. I have a hunch we're on fhe verge of real blocking setting up.

good of him to take one for the team.

 

#longrangefantasygfsftwandstuff

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good of him to take one for the team.

#longrangefantasygfsftwandstuff

Gfs? It's all about the strat man. Splitty splitty

Jokes aside, euro ens and gefs are hinting at some interesting changes. Higher heights directly over the pole and the pv firmly planted near hudson through the ends of the runs. Might be a numeric +ao but the height patterns are looking pretty good for cold air dumps. It wouldnt take much and ops are hinting at it as well. I could envision the epo/scand ridge connection like we saw last year.

Looks like we get cold before we get warm again at least.

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18z gefs continues the improved look and continues the trend of backing down the +ao. Reload of cold d14-16. Ridge bridge sets up at the end.

Did you see this?

889bfb7d8b980d312a701bb0c4035cde.jpg

13eb53b968d3c943385a582b9a8adbc8.jpg

f6c0676f08d086ea4d810557886423dd.jpg

This splits start happening at 200-240'ish. The difference this run is that it continues the warming/splitting process towards the end of the run, instead of the PV rebounding. Pretty legit signal if it holds. (SSW)

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