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December Medium/Long Range Discussion


WxUSAF

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5 minutes ago, DCTeacherman said:

ICON coming in more suppressed with the initial part of the storm due to stronger confluence, but also appears there is a little more northern stream energy on the backside of the trough, so perhaps that would help with a later phase. 

The way the ICON handles the NS leaves no chance.  There is a strong clipper diving down through New England as our storm is trying to turn the corner.   One of the problems I am seeing is when we get rid of one NS vort another just appears...there is a non stop stream of them diving down the backside of the PV lobe to our northeast.  Unless that relaxes we are in trouble.  Still time for that to happen though.  

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2 minutes ago, winterymix said:

Comparing the new run of GFS vs. new run of FV3, they have switched places but both are suppressed south.  The GFS brings big snow to the doorstep of Winchester and puts on the brakes.  The FV3 slips out to sea near Norfolk.

youre talking about 06z right? 

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3 minutes ago, winterymix said:

http://www.emc.ncep.noaa.gov/mmb/gmanikin/fv3gfs/fv3images.html

check hour 132

 

The FC3  shows the banana high located to the north having a huge eastward expansion that forces the storm ENE, GFS doesn't show all of that.

It’s not out that far.  I don’t know how else to explain it to you. 

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