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Feb 12-13 Obs for "The Storm That Wouldn't Say NO"


Herb@MAWS

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nj2va, on 12 Feb 2014 - 6:32 PM, said:

Nice Disc!  Happy to see you getting in on this.  

 

It'll be my first 6"+ storm since Feb. 2010.

 

clskinsfan, on 12 Feb 2014 - 6:33 PM, said:

Nice. Were you the one from Roa worried about getting fringed earlier in the week? It's so cool that everyone gets in on it.

Haha, yeah I was beginning to worry. Snow drought here is coming to an end. :)

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mcd0095.gif 

  MESOSCALE DISCUSSION 0095
   NWS STORM PREDICTION CENTER NORMAN OK
   0541 PM CST WED FEB 12 2014

   AREAS AFFECTED...PARTS OF THE MID-ATLANTIC STATES

   CONCERNING...HEAVY SNOW 

   VALID 122341Z - 130515Z

   SUMMARY...A LARGE SWATH OF MODERATE TO HEAVY SNOW WILL DEVELOP NEWD
   THIS EVENING WITH RATES OF 1-2 IN/HR. THE MOST PERSISTENT BAND
   SHOULD EXIST ALONG THE BLUE RIDGE MOUNTAINS AND ADJACENT PIEDMONT
   FROM NWRN NC TO CNTRL VA THROUGH ABOUT 03Z AND INTO THE WASHINGTON
   DC METRO AREA BY 06Z.

   DISCUSSION...23Z SURFACE OBSERVATIONS CONFIRM A BROAD AREA OF
   MODERATE TO HEAVY SNOW AS FAR N AS THE I-64 CORRIDOR IN VA/WV. 12Z
   CONVECTION-ALLOWING WRF GUIDANCE GENERALLY APPEARS TOO SLOW WITH NRN
   EXTENT /OUTSIDE OF THE NSSL-WRF/ COMPARED TO RADAR/SURFACE
   OBSERVATIONS. CONSENSUS OF CONVECTIVELY-PARAMETERIZED GUIDANCE
   APPEAR CLOSER TO REALITY...WITH 15Z SREF MEAN AND 18Z NAM SUGGESTIVE
   OF SNOWFALL RATES AVERAGING 1-2 IN/HR. THIS APPEARS REASONABLE GIVEN
   INTENSE FRONTOGENESIS/ISENTROPIC LIFT DOWNSTREAM OF A VIGOROUS AND
   STILL AMPLIFYING SHORTWAVE TROUGH OVER THE SOUTHEAST. THE MOST
   PERSISTENT BAND OF HEAVY SNOW WILL LIKELY EMANATE NEWD FROM THE NWRN
   NC/SWRN VA AREA TOWARDS THE WASHINGTON DC METRO AREA BETWEEN 03-06Z.

   ..GRAMS.. 02/12/2014



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