'TODAY'S NUMERICAL MODELS ARE IN FAIRLY GOOD AGREEMENT ON THE EXPECTED 500-HPA HEIGHT PATTERN THROUGH THE 6-10 DAY PERIOD. THIS PATTERN FEATURES UPPER LEVEL TROUGHING OVER THE EASTERN PACIFIC AND MUCH OF ALASKA, UPPER LEVEL RIDGING OVER THE ROCKIES AND CENTRAL U.S., AND UPPER LEVEL TROUGHING OVER THE EASTERN THIRD OF THE CONUS. TODAY'S 06Z GFS ENSEMBLE AND 00Z CANADIAN ENSEMBLE PREDICT MORE UPPER-LEVEL TROUGHING OVER THE EAST THAN THE 00Z ECMWF ENSEMBLE, WHICH DEPICTS A LESS AMPLIFIED PATTERN WITH A BROAD RIDGE COVERING MOST OF THE U.S. THE 06Z GFS ENSEMBLE HAS SHOWN A VERY CONSISTENT TREND TOWARD AMPLIFYING THE PATTERN, WITH THE UPPER-LEVEL RIDGE BUILDING WESTWARD INTO THE PACIFIC NORTHWEST, AND THE UPPER-LEVEL TROUGH BUILDING SOUTHWEST INTO THE SOUTHEAST AND SOUTH CENTRAL U.S. IN ADDITION, THE 06Z GFS ENSEMBLE MEAN SOLUTION IS VERY SIMILAR TO THE 06Z DETERMINISTIC GFS SOLUTION, FURTHER INCREASING CONFIDENCE IN THE GFS SOLUTION'. Posted above by CC!!!