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January 29-30, 2019 Arctic FROPA


WxUSAF

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  On 1/30/2019 at 12:20 PM, LP08 said:

That’s kind of crazy.  We are usually pretty close but I got to 11 this morning.  What a half inch of snow can do. Lol

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I know, I was surprised when I saw the reports here and then looked at the nearest Wunderground stations.  I had barely a coating on the grass/cars left this morning.

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  On 1/30/2019 at 2:48 PM, Kmlwx said:

Believe that would be positive vorticity advection (maybe?)

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That's the one!

  On 1/30/2019 at 2:47 PM, Eskimo Joe said:

PVA = Positive Vorticity Advection:  https://en.wikipedia.org/wiki/Positive_vorticity_advection

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Right on cue EJ lol

  On 1/30/2019 at 2:46 PM, caviman2201 said:

Sorry - PVA signature?  Thanks in advance :)

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What they said! lol

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  On 1/30/2019 at 2:54 PM, gopper said:

Is it time for radar hallucinations yet?  Looking at radar about 20 minutes ago, it appeared that our show showers were going to be non-existent, now looks like they may have some life!  Going to be fun watching radar this morning!

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Unlike a summertime line of storms, a snow band probably won't show up on radar very well, especially in the mountains. 

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  On 1/30/2019 at 2:54 PM, gopper said:

Is it time for radar hallucinations yet?  Looking at radar about 20 minutes ago, it appeared that our show showers were going to be non-existent, now looks like they may have some life!  Going to be fun watching radar this morning!

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They seem to be moving fast and looking out West I see Snow Squall Warnings up. That's new 

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  On 1/30/2019 at 2:47 PM, Eskimo Joe said:

PVA = Positive Vorticity Advection:  https://en.wikipedia.org/wiki/Positive_vorticity_advection

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Are there any public/free products which show this parameter? I can't find one on TT, PivotalWeather or SPC Meso...

Side note: There are some pretty cool new Winter products on SPC Meso

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