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GrandmasterB

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Posts posted by GrandmasterB

  1. 17 minutes ago, Bubbler86 said:

    A voice of reason?  Good analysis.  I said it was the worst nam run due to ground truth temps in the 40's (12Z got their as well but had more frz) but it could have trended a bit better. 

     

     

    The surface is sort of the last thing I'm worrying about.  Rain at 30 or rain at 34...doesn't accrete well either way.  Mag is right (of course) about the duration.  It doesn't have a lot of time to wreck the surface temps.  Usually that happens on SW winds when the low is ripping up through Lake Erie.  I think the NAM is probably too high and fast on surface temps.

  2. I actually thought the 18Z NAM looked a bit better than its 12Z run (which was also a disaster).  The surface low is further south and east early on.  Then as the surface low tracks into PA it tries to transition to a coastal just south of LI.  I know the mid levels are nuked at that point but if that transition can happen further south or east that will buy us valuable thump time.

  3. Agree with you Bubbler on the CMC.  That's one way we can get back to a snowier solution.  Get the coastal low going sooner/more east and cut off the surge to our west.  CMC is a noticeable shift towards that.  Let's see if we can get it on the Euro.  I can't believe tomorrow is another full day tracking for this event!  Feels like we've been tracking it for a month now.

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  4. One aspect of this storm I was looking forward to was the advertised hellacious front-end thump showing up.  However, that has backed down significantly for us in the southeast as the WAA precip lags while the SE flow in the mid-levels is just raging.  So now we'll be waiting for the precip to get here as the mid-levels will be getting wrecked.  Looks like a burst of snow, to some sleet, then drizzle.  That burst of snow is dwindling for some of us.

  5. I'm not prone to radar hallucinations but looking back at the 12Z NAM, it didn't have any of the precip currently in western NC and points south.  It's raining in Asheville, NC and the NAM has no accumulated precip there.  I just don't see how that slug of moisture misses eastern areas to the west.  I guess it can do the energy transfer to the coastal thing, but I'm skeptical.  

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  6. Just now, Bubbler86 said:

    The Nam depiction is pretty strange.

    image.png.d575598f87d694753a5141fde6b83596.png

     

    Just logging on to mention this.  It was talked about in the New England forum about the Euro as well...models may be struggling a bit with the location of any kind of coastal development.  Models "chasing" convection to the east.  I think (hope) there is some upside if we see a more consolidated coastal low.

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