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Mid to Long Term Discussion 2021


jburns
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12 minutes ago, BullCityWx said:

You’ve got pretty much a perfect pattern. -NAO, +PNA, -AO. 

The EPS and GEFS look spectacular in extended and it is moving up in time. At the time stamp you posted it’s almost a textbook Miller A composite!

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21 minutes ago, wncsnow said:

You are all forgetting one big issue- The vodka cold is all in Siberia. Canada is well above average. 

We don’t need Canada to be vodka cold. Would it be necessary for heavy snow and temps in the teens? Probably. If Canada was full of extreme cold, we’d be talking about an I-10 snowstorm. 

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12 minutes ago, BullCityWx said:

We don’t need Canada to be vodka cold. Would it be necessary for heavy snow and temps in the teens? Probably. If Canada was full of extreme cold, we’d be talking about an I-10 snowstorm. 

Well-stated. NC and VA tend to not cash out in vodka cold outbreaks.  Suppression is not our friend. We tend to excel when it’s moderately cold. 

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25 minutes ago, BullCityWx said:

We don’t need Canada to be vodka cold. Would it be necessary for heavy snow and temps in the teens? Probably. If Canada was full of extreme cold, we’d be talking about an I-10 snowstorm. 

We don't need vodka cold but this is marginal cold even for favored locations. If you are south of 85 and 40 it's going to be tough to get any wintry  IMO.  Mountains are prime spot as per usual. 

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3 hours ago, BullCityWx said:

2E3D314D-F0A5-4991-9A26-AC42EDBAA1F5.jpeg

I’ve been waiting for this to arrive since November. Just a little more patience  :wub:  

37 minutes ago, Wow said:

So we've got a ULL on the 8th that might make some mischief on the 8th and then a s/w to watch following up on the 12th that could deliver a gulf low

Oh the possibilities :whistle: :snowman:  :snowing:

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Here is the Euro Control run at 500mb and at the Surface.  Wave enters the west coast in Oregon and is forced to slow down and dive down into the SE as the flow backs up over the Canadian Maritimes and North Atlantic with the developing blocking.  Simply put, you want this wave to be as strong as possible, and tracking a bit south of you as the temperatures needed for snow would come on the N and NW side of that track as heights crash.  Stronger wave = stronger temperature crash.  Surface temps would be the last to fall, so things like time of day could be a factor in a marginal temp setup.  You could make the case that the small wave tracking thru the Great Lakes toward the end of the loop is disrupting flow so that the surface high above the Great Lakes isn't allowed to build in to help the low level temperatures out ahead of the storm (2nd loop)....but on the prior run, that small wave wasn't there and it didn't make a difference.

o1WTxG6.gif

UEBhwAY.gif

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1 hour ago, griteater said:

Here is the Euro Control run at 500mb and at the Surface.  Wave enters the west coast in Oregon and is forced to slow down and dive down into the SE as the flow backs up over the Canadian Maritimes and North Atlantic with the developing blocking.  Simply put, you want this wave to be as strong as possible, and tracking a bit south of you as the temperatures needed for snow would come on the N and NW side of that track as heights crash.  Stronger wave = stronger temperature crash.  Surface temps would be the last to fall, so things like time of day could be a factor in a marginal temp setup.  You could make the case that the small wave tracking thru the Great Lakes toward the end of the loop is disrupting flow so that the surface high above the Great Lakes isn't allowed to build in to help the low level temperatures out ahead of the storm (2nd loop)....but on the prior run, that small wave wasn't there and it didn't make a difference.

o1WTxG6.gif

UEBhwAY.gif

Great to see the block doing work and putting storms where we would need them to be. Just a bit hard to get excited about these storms though with surface temps so marginal. GEFS temps are warm through the whole run. Waiting hopefully and patiently for something to change that will inject cold air into the system. 

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