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Everything posted by ORH_wxman
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Could be a nice period of moderate to heavy snow over eastern areas looking at this loop. Filling in too south of HVN
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Still not very hopeful for 1/10 south of about dendrite but maybe it trends just a bit more. 1/13 could still end up a lot better. But that storm could also but rains to Maine. High stakes.
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Also we have that decent high to the north…something we couldn’t buy to save our lives last winter…so even though the wind is still off the water for the coast with the somewhat tucked low track, that high is helping to funnel in lower dewpoint air which acts to help keep it cooler just off the deck with evaporational cooling/wetbulbing.
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It helps to look just off the deck. So often last year we had like 0C to -1C at 925mb. This is significantly colder so that modeled warm layer is very shallow right near the sfc…that’s often a good signal that you’ll accumulate a lot easier at 32-33 than if you’re already dealing with waterlogged melting aggregates.
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Yeah the post count is going to look like a sine wave most likely if ensemble guidance is any indication. Very little during the snowstorm and then a big spike during the cutter (perhaps two if 1/13 cuts) then back down again as pattern really goes colder with potential snow threats. We’ll return for verification in a couple weeks.
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That’s a nice stinger for E MA on Sunday afternoon. Seems like all the models are showing that at 00z so far. Could be brief blizzard conditions with a flash freeze temp crash. There aren’t a ton of situations that ever happens…the ones I can think of are 12/9/05, 3/8/05 and maybe 2/2/15 near BOS for places that were east of the CF…then it crashed to like 12F with blizzard conditions that afternoon/evening,lol. I don’t think this one will be as bad as those examples but it’s something to watch. Can’t rule out a really nasty 3-4 hour period.