the 12z ETA has the Thursday bomb in a position and intensity very similar to the Ecmwf from the last few runs and considerably further North than the GFS while the 0z and 12z GF runs are now shifting further North
This was the DEC 13 0Z GFS with the bomb over Cape Cod that has gotten everyone all excited....

The DEC 13 12Z RUN at DAY 5
[IMG]http://wwwt.emc.ncep.noaa.gov/gmb/STATS/maps/avn/graphics/2003121312avnf120.gif [/IMG]
ok reality time...12Z ETA 78 HRS
http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/eta/12/fp0_078.shtml
EE rule. Works like a charm... stay away from the GFS on east coast storms past 84 hrs.
last NITE's ECMWF DAY 4
http://weather.unisys.com/ecmwf/restrict/ecmwf_500p_4d.html