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1/6 snowstorm - nuisance event or something bigger?


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14 minutes ago, Heisy said:

Models reverted back to what I expected. I still am holding out hope for a rogue fronto band that travels farther N than expected and surprises some folks, but right now 1-3” is my call for Philly.


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I personally would go 2-4” with room to go up or down.

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2 minutes ago, Ralph Wiggum said:

Looks like she's gonna trend N. Lobe over Maine was way overmodeled

 

There’s also some confluence we have to deal with in the upper Midwest. Although that could be related to that lobe over Maine.

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That confluence actually ends up quite a bit further south on the 18z NAM. But the vort itself seems to be more potent and juiced up and that northern confluence almost tries to phase into the backside of our upper-level shortwave trough. So it kicks up the heights ahead of our storm just a bit as it's passing through, which helps to increase positive vorticity advection and hence we see that secondary surface low spawn as it slides east associated with the vort pass.

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4 minutes ago, RedSky said:

Deja vu GFS 18z yesterday with the north push. Is it real stay tuned.

 

 

 

 

I'm not sure it's the fronto forcing that lifted north or if it is the effects from this new coastal development. Shame it can't stall out under the block or crawl at least :pimp:

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4 minutes ago, Ralph Wiggum said:

I'm not sure it's the fronto forcing that lifted north or if it is the effects from this new coastal development. Shame it can't stall out under the block or crawl at least :pimp:

It's slower so it gets to crawl northeast

 

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