EXTENDED FORECAST DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1229 AM EDT TUE AUG 02 2016 VALID 12Z FRI AUG 05 2016 - 12Z TUE AUG 09 2016 MUCH THE SAME IN THE MEDIUM RANGE PERIOD AS IN RECENT DAYS. TROUGHING IN SW CANADA WILL SLOWLY LIFT EASTWARD THROUGH THE PERIOD WHILE THE EAST WILL SEE INCREASED TROUGHING NEXT SUN-TUE. RECENT GFS/ECMWF RUNS OFFER GOOD CONSENSUS WITH THEIR ENSEMBLE MEANS (18Z GFS A BIT MORESO THAN THE 12Z GFS) AND A BLEND REMAINS THE COURSE OF LEAST REGRET. FOCUS WILL LIE AROUND THE EASTERN FRONT MOVING OUT OF THE GREAT LAKES AND INTO/THROUGH THE NORTHEAST SAT/SUN, PUSHING SOUTHWARD INTO THE CAROLINAS. THOUGH IT MAY ONLY PULL TEMPERATURES BACK TOWARD SEASONAL AVERAGES, SHOWERS/STORMS WILL BE NUMEROUS ALONG/AHEAD OF THE FRONT ALL THE WAY BACK TO THE CENTRAL PLAINS. IN THE FOUR CORNERS REGION, ENSEMBLES SHOW A DECREASE IN PW VALUES OVER UT/AZ BY EARLY NEXT WEEK AMID A LESS FAVORABLE SETUP TO BRING IN SUBTROPICAL MOISTURE FROM THE SOUTH, THUS SHIFTING THE PRECIP EASTWARD. FRACASSO