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Potential Storm 2/17-2/19


Snow_Miser

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Well now we have the euro vs gfs, rgem, jma, nogaps, ggem, ukie and nam, this just got real interesting...

And I'm still taking the EURO, not buying anything more until we see it trend. It's record with coastals, and even smaller events such as the last one, is impeccable.

-skisheep

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and UKMET at hr72...just doesnt capture the low and drag it back west, even though the trough goes negative

You don't have to have the surface low really close to the coast to get good precip, especially with the mid level low cutting off and tucking/tilting under us.  It's not the low that causes precip, but the forcing mechanisms and the flow around the lows centers at different levels.  On the UK you can see the contours tucked back closer to the coast, even though the center is well offshore.  That suggests the UK is pretty wet from EPA to SNE.

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Although I am intrigued by this and feel this def has a chance to come even farther west and drop more qpf than currently modeled..... One little slip up by the models keying on the wrong piece of energy could shift this entire storm back to being a nonevent. I'm loving these model trends but staying very timid about this storm producing is the best way to go.

Very true. 

But two things I like.

1)  These trends are happening rapidly in the short term!

2) The solutions that we are seeing resemble the big hits from a few days ago.  Seeing it, losing it, and seeing it again last minute is a hallmark of unexpectedly significant storms.

 

This looks to be shaping up to be another pounding for SNE.  The trof axis argues against pulling this any further southwest, but there is still a little time.

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You don't have to have the surface low really close to the coast to get good precip, especially with the mid level low cutting off and tucking/tilting under us.  It's not the low that causes precip, but the forcing mechanisms and the flow around the lows centers at different levels.  On the UK you can see the contours tucked back closer to the coast, even though the center is well offshore.  That suggests the UK is pretty wet from EPA to SNE.

 

 

You don't have to have the surface low really close to the coast to get good precip, especially with the mid level low cutting off and tucking/tilting under us.  It's not the low that causes precip, but the forcing mechanisms and the flow around the lows centers at different levels.  On the UK you can see the contours tucked back closer to the coast, even though the center is well offshore.  That suggests the UK is pretty wet from EPA to SNE.

thanks for explaining...i see what you mean.

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from Forky in the Philly thread:

one more suite with more amplification and this could be fairly substantial... moreso than the blizzard

HM's response to Forky:

Agreed. Initially, the AJ wave dropping in forces a close-off over Ontario; but, it drops to New England with the amplifying coastal. If this drop-off can happen sooner, suddenly we are dealing with a major snowstorm/blizzard from PHL-BOS.

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