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3/17-3/18 Storm Threat Discussion


Zelocita Weather

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Wow, that's picture perfect for snow here.

 

This is a favorable setup if the energy ejects in one piece. The thermal gradient will be forced south by the compressing height field to the north and (as I mentioned above, if the energy ejects in one piece) the slug of moisture will push northward from the Arklatex and force a surface low to develop in the TN Valley which almost assures we get precipitation here regardless of whether it becomes a "big" event or not. The surface low can scoot eastward and we can still get a moderate event. If it comes north (maybe even a bit north of the CMC position) then we're talking big numbers.

 

But this all hedges on things remaining consolidated and the energy in the Pac which is low confidence and leaves me wondering if the models are playing games with us again. They have been terrible with Pac energy and changing their forecasts completely once it comes onshore.

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This is a favorable setup if the energy ejects in one piece. The thermal gradient will be forced south by the compressing height field to the north and (as I mentioned above, if the energy ejects in one piece) the slug of moisture will push northward from the Arklatex and force a surface low to develop in the TN Valley which almost assures we get precipitation here regardless of whether it becomes a "big" event or not. The surface low can scoot eastward and we can still get a moderate event. If it comes north (maybe even a bit north of the CMC position) then we're talking big numbers.

 

But this all hedges on things remaining consolidated and the energy in the Pac which is low confidence and leaves me wondering if the models are playing games with us again. They have been terrible with Pac energy and changing their forecasts completely once it comes onshore.

The trend this season has been for sheared out/weak generally with these pieces of energy too which leaves me skeptical. But we'll see.

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Not going to speculate about snow totals right now. Let's see what the Euro shows shortly. Yes I'm ready to sound the :weenie: alert tones.

I think we should temper any excitement  for now. These past two storms have trended poorly for us  under 100 hours. I'm waiting till friday afternoons 12z before I fully jump on board.

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My impression of the GGEM this winter is that it has been wildly inconsistent and prone to extreme solutions followed by over-corrections, but what do I know? Here's hoping the Euro throws the dogs a weenie.

But what model(s) have been consistent throughout the entire winter?

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I would temper any excitement until the weekend TBH but the setup looks really good, great timing with the arctic air coming south and the PNA peaks during this storm before going negative.

Setup almost looks classic for atleast a low end KU. thats whats worrisome however, many times this winter we've seen these strong signals there only to get substantially less enthusiastic as we get closer. Therefore, i agree lets wait till friday to see what we'll be up against and the pacific sampling really hasnt been stellar this year either as john said so that factors into this as well

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Setup almost looks classic for atleast a low end KU. thats whats worrisome however, many times this winter we've seen these strong signals there only to get substantially less enthusiastic as we get closer. Therefore, i agree lets wait till friday to see what we'll be up against and the pacific sampling really hasnt been stellar this year either as john said so that factors into this as well

When you say set up, what do you mean? Depends on what model you're looking at.

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That's why I'm feeling more confidence with this storm. The canadian has been riding the hot hand lately. Patience everybody.

Eh if that were to verify it would likely put us in 95-96' territory which is to put it lightly rare air for this area. Im still holding my excitement till friday unless models show these pure porn solutions today and tommorow at 0z

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