USCAPEWEATHERAF
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Everything posted by USCAPEWEATHERAF
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Where are the observations from everyone, it is snowing on the South and North Shore at least above the surface. This is an impressive band of snow incoming!
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Yep, Bob, that upper low is now south of ACK and MVY. The cold cloud tops are moving southwestward and now over the Cape. Delat Ts approaching +26 to +28C
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Wow, delta ts approaching +28C
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that band looks west across the SE Maine coastline
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Well it seems the trough misses to the east a bit now. The deepest of the cold is over the area today. The upper low is moving through NE CT and NW RI right now in a few hours it will be south of Block Island and this will swing the band southward and out to sea. I expect the NWS to cancel the Winter Weather Advisory. I am skeptical about the FEB 1-3 2021 event being snow on the Cape.
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What is that area of rotation on radar that is moving southward in the Gulf of Maine? It is east of Cape Ann now
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What has developed off of Portland Maine over the western Gulf of Maine and is moving southward? It looks like the beginnings of a northerly fetched band of snow.
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The biggest difference is that cold air has arrived and you can feel it outside.
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The band is being enhanced by the Bay. The precipitation is blossoming. 18z GFS was west with the H5 low as it travels over RI. This brings the band inching west a bit.
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Cold air has arrived and so has the ocean enhanced snows along the trough/surface boundary. Temp is 30F
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thanks, I think more snow will fall
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Honestly all the 18z guidance were west a bit with the upper low over NW RI and also the trough is stronger and the banding is stronger!
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Winter Storm Watch in effect for tomorrow for Barnstable and Nantucket
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Our Polar Vortex is moving southeastward now over Quebec, Canada
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Yeah that storm, brought a microburst through the entire length of the Cape
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Oh okay,
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Is this not a tropopausal fold type event?
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But you are also likely seeing impacts from a storm closer to the coast.
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The likely reason for the different movement of the echoes over eastern New England is due to the upper divergence caused by the southeast quadrant of the upper low over Ontario and western Quebec that will be rotating southeastward towards the region. The upper divergence will allow the surface low to intensify, therefore intensifying the band of heavy snow.
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Man I would love to witness those conditions and get them on camera live. I mean just once, I want to witness something that extreme.
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Is it because the upper trof is not situated ideally and not as far southwest?
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Will that arctic air is moving into the region. Man those 850mb temps drop to -24C on the latest RAP run
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You know what becomes our mesolow is this feature over the Cape Cod Bay right now. This little low shifts offshore and then backs in tomorrow. This low intensifies as the H5 low approaches and transfers energy to the coastal low. This process is what develops the intense band of snow and wind. Honestly, current trends do not show this feature moving out as promptly as the models have suggested. I think the band moves over the Cape. Just a hunch, similar banding impact as the DEC 20 2010 system.
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Oh we will get colder once the trough or boundary begins to move east. Right now the area of best convergence is over the Upper Cape and southern portions of Plymouth county. I honestly think tomorrow is going to be a lot of radar hallucinations and a lot of huh, and ooohhh, and then some bickering and then celebration as the monster band does hit us right on the noggin.
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A few degrees colder, but rain as well.
