ALASKA EXTENDED FORECAST DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 158 PM EDT FRI MAY 27 2016 VALID 12Z TUE MAY 31 2016 - 12Z SAT JUN 04 2016 THE PATTERN IS BLOCKY ACROSS NORTHWESTERN NORTH AMERICA, WITH RETROGRESSION SEEN ACROSS NORTHWEST CANADA INTO AK WHILE PROGRESSIVE SYSTEMS SLIP UNDER THE BASE OF A BLOCKING HIGH IN EASTERN SIBERIA. RIDGING PERSISTS ACROSS SOUTHWEST CANADA. THE GUIDANCE SHOWED GOOD AGREEMENT FOR THE MOST PART, GENERALLY CONFINED TO LATITUDE ISSUES WITH A CLOSED LOW IN THE NORTHEAST PACIFIC. WITH AN EYE TOWARDS CONTINUITY WHILE STILL REFLECTING SOME OF THE CURRENT GUIDANCE, USED A COMPROMISE OF THE 06Z GFS/12Z GFS/00Z ECMWF/00Z CANADIAN FOR TUESDAY NIGHT THROUGH WEDNESDAY NIGHT BEFORE ADDING INCREASING AMOUNTS OF THE INTERMEDIATE 00Z NAEFS MEAN INTO THE MIX. THIS SOLUTION KEPT REASONABLE CONTINUITY. SKIES START OUT PARTLY CLOUDY ACROSS MUCH OF THE STATE (OUTSIDE THE PANHANDLE) EARLY ON, BEFORE A RETROGRADING UPPER TROUGH BRINGS CLOUDINESS IN FROM THE EAST. TEMPERATURES LOOK MILD, WITH LOWS IN THE 40S/50S AND HIGHS NEAR 70. RAIN IS MOST LIKELY IN THE AK PANHANDLE AS A DEEP CYCLONE MOVES EASTWARD THROUGH THE NORTHEAST PACIFIC WITHIN THE MAIN BELT OF THE WESTERLIES AND MOST QUESTIONABLE/UNCERTAIN ALONG THE COAST OF SOUTH-CENTRAL AK DEPENDING UPON THE ULTIMATE LATITUDE OF THE DEEP CYCLONE MID NEXT WEEK. ROTH