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1/3 Snow Squall Potential


NorthArlington101
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16 minutes ago, katabatic said:

I have done multiple intense LES chases in the past few years but this squall that just moved through was the most intense (albeit brief) snowfall I've ever seen. Easily an inch in the 10-12 minutes it took to move over mby. 

Having gone to Syracuse and chasing lake effect up through Oswego County countless times today’s squall was legit especially the second band

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For those caught off guard by this and expecting snow TV, whenever you have an arctic front and simulated reflectivity in the hi-res models that has localized cells with heavy snow, you definitely need to take note:

image.thumb.gif.45c85dad62aba56b14d57ca7f46acf78.gif

  The timing and placement may be off (the timing was off a bit in this forecast, but it was decent with the location), but signatures like those really caught my attention.    Inspection of soundings revealed non-zero instability and good low-level lapse rates, and that is game on even with marginal sfc temperatures.     I'm impressed here too that the outer edges of some of these features are green (with blue cores), accurately showing that light rain would quickly turn to heavy snow as temperatures quickly fell.

 

 

 

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25 minutes ago, aldie 22 said:

That was a fun day let's do it again!

Oh...YEAH. I'd be tempted to say that this afternoon's snow squall warning and thundersnow and (probably!) .5" of snow STILL sticking all around my south-of-the-DMV-burbs property rivaled the 2012 derecho. But it's a close call, and discussion...  ;) 

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