PROGNOSTIC METEOROLOGICAL DISCUSSION

 
 FXUS10 KWNH 250400
 PMDHMD
  
 MODEL DIAGNOSTIC DISCUSSION
 NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
 1059 PM EST TUE NOV 24 2009
  
 VALID NOV 25/0000 UTC THRU NOV 28/1200 UTC
  
 
 ...SEE NOUS42 KWNO ADMNFD FOR THE STATUS OF THE UPPER AIR
 INGEST...    
 
 
 00Z/25 NAM AND GFS EVALUATIONS
 
 
 ANY INITIALIZATION ERRORS WITH THE NAM AND GFS DO NOT APPEAR TO
 SIGNIFICANTLY IMPACT THEIR SOLUTIONS.
 
 
 ...WAVY FRONTAL ZONE JUST OFF THE EAST COAST...
 
 THE NAM LIFTS ONE CONSOLIDATED LOW EAST OF CAPE HATTERAS DAY
 2...WHEREAS THE GFS AND 12Z/24 ECMWF SPLIT UP THE ENERGY.  UNLIKE
 THE OLD ECMWF...THE GFS DRAWS THE MOST DEVELOPED WAVE WESTWARD
 TOWARD NEW ENGLAND BY THE START OF DAY 3.
 
 
 ...COMPLEX FRONTAL SYSTEM CROSSING THE MIDWEST DAY 1...
 
 THE NAM SHOWS MORE SEPARATION IN THE FLOW ALOFT THAN THE GFS AND
 12Z/24 ECMWF.
 
 
 ...LOW COMING ASHORE IN THE PACIFIC NORTHWEST LATE DAY 2...
 
 THE NAM AND GFS ARE SLOWER AND DEEPER THAN THE 12Z/24 ECMWF WITH
 THIS WAVE.
 
 
 ...MODEL TREND GRAPHICS AT
 WWW.HPC.NCEP.NOAA.GOV/HTML/MODEL2.SHTML...
 
 ...500MB FORECASTS AT WWW.HPC.NCEP.NOAA.GOV/H5PREF/H5PREF.SHTML...
 
 
 CISCO