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cbmclean

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Posts posted by cbmclean

  1.  

    4 minutes ago, rxwxunc said:

    https://journals.ametsoc.org/view/journals/wefo/22/2/waf986_1.pdf
     

    This article from AMS explains convection robbing or enhancing upstream QPF well. We need a low level jet to orient convection north to south to push more moisture north. If the convection moves too fast west to east then there is very little northward moisture transport like the current NAM is showing.  

    Nice article!

  2. The 12K NAM sucks, I mean it stinks as a model.  But it does one thing exceptionally well: it sniffs out a warm nose like a freaking terminator.  Based on this and based on the long-joked-about-but-still accurate-maxim, "trust the least snowy model" combined with the maxim that the warm-nose always overperforms: I "officially" predict that the 12K NAM will "win" and RDU south will have little or no snow.  I hope I bust horribly and I get a snowball to the face tomorrow.

    • Like 1
    • Crap 3
  3. 1 minute ago, NorthHillsWx said:

    Both the NAM and FV3 turn Raleigh proper over to ZR for the majority of the event. It’s still a major possibility. Plain rain is off the table though and we will have some sleet for sure. I’m not sold on us seeing any snow until the NAM shows it at 12z tomorrow. I’ve been burnt by NAM thermals for years I’m not letting it get me this time. It is very good at assessing thermals in a miller-A. Like the best. Seeing it mix into Virginia worries me, even at range 

    Having flashbacks to January 2017.

  4. 2 minutes ago, tarheelwx said:

    I agree.  I'm hoping that whatever the 3km NAM is cooking up comes to fruition.  It has alot more moisture back in the western half of NC and seems to be a fair amount slower.  I could see it putting out 0.50"+ in the Triad.

    TW

    Better regional performance at short lead times is literally the NAM's entire purpose for existing, so if it can't beat the globals in that regard, time to put it out to pasture.

    • Like 2
  5. 3 minutes ago, BornAgain13 said:

    I mean. Realistically, how far south and east can it go? 

     

    1 minute ago, BooneWX said:

    Pretty far. There’s nothing in the upper levels preventing this from going OTS completely 

    I was just going to say the same thing; this could trend to a FROPA.  For my sake, hopefully not.

  6. 29 minutes ago, NorthHillsWx said:

    Wind underperformed big time here. Not sure we gusted over 40 and it hasn’t even been that breezy since 

    Nothing to serious in Wilson; max of 26.2 mph on my PWS.  Just got breezier again though.

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