May 20, 2013
AFTER CAREFULLY READING LAST NIGHT`S LONG TERM DISCUSSION...IT APPEARS THAT THE GFS AND ECMWF HAVE NOW COMPLETELY FLIP-FLOPPED...WITH THE 00 UTC GFS NOW PUSHING THE 1ST COLD FRONT FAIRLY QUICKLY THROUGH THE REGION SAT AFTN AND EVENING...WHILE THE 12 UTC ECMWF RUN FROM TUE LINGERS THE FRONT AND DEEP LAYER MOISTURE IN THE REGION INTO TUESDAY. WITH THIS MUCH UNCERTAINTY...WILL WAIT FOR THE 00 UTC ECMWF RUN BEFORE COMPOSING THE EXTENDED GRIDS...WITH THE HOPE THAT THE MODELS CONVERGE TOWARDS A CONSENSUS. IN ANY EVENT...INDICATIONS ARE POINTING TOWARDS THE POTENTIAL FOR AN ARCTIC AIRMASS PLUNGING SOUTHEASTWARD TO THE REGION NEAR THE END OF THE PERIOD...AS A STEEP TROF BEGINS TO CARVE OUT OVER THE EASTERN U.S. THIS SCENARIO WILL CERTAINLY BEAR WATCHING...AS THE COLDEST AIR OF THE NEW YEAR MAY ARRIVE IN FULL FORCE BY THE END OF NEXT WEEK.
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