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Jan 20/21 Snow Threat


snowNH

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I dunno - I'm trashing this Euro run beyond 96 hours... To huge of a massfield continuity shift that has no support from other guidance. We've seen the Euro pull this crap at D5+ several times this year - it's been suspect even inside that time range.

It looks like the GFS op now.

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Must be a matter of opinion but the Euro has much more emphasis over the GL than the GFS

I see what you mean, but they sort of imply almost a warm sector deal into parts of SNE...GFS is more like a fropa. But the euro also has that low to the south for a while, before it got absorbed into the system. It's a complicated scenario and the ensembles seemed to disagree a bit.

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If we could only lock up the 18z nam, But after the last storm where it failed i would go with the GFS/Euro

The 18z NAM already seems to be a bit of a nudge south from its 12z run.

Right now I'm thinking it continues to nudge south a bit while the GFS and Euro shift a tad north. The CT-RI/MA border up to Boston is probably the battleground when the dust settles. Can't see it going too much further north with the consistency of the H as displayed on recent runs of the GFS and Euro, but could see one additional tick or two to the N of the 0º C line's furthest advancement from there the consensus of the GFS/Euro is currently sitting.

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look at 850 .. either sleet or freezing rain w/o looking at sounding

Yeah I know...I looked at the instantweathermap site and looked at snow totals and just assumed it was accurate. Looking at twisterdata 850 goes above 0C at 850 by 21z but the surface is cold....not really sure how to tell if its sleet or freezing rain.

Actually its amazing how cold the surface is. By 00z temps 850 temps look to be like +2 or +3 and the surface is still 30-31F...upper 20s out by Pete.

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Yeah I know...I looked at the instantweathermap site and looked at snow totals and just assumed it was accurate. Looking at twisterdata 850 goes above 0C at 850 by 21z but the surface is cold....not really sure how to tell if its sleet or freezing rain.

I posted soundings near your area, pelted your head so hard you end up looking as bald as Kev.

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