Area Forecast Discussion
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000 FXUS61 KPBZ 211726 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 1226 PM EST FRI NOV 21 2014 .SYNOPSIS... COLD HIGH PRESSURE WILL BUILD IN TODAY. WIDESPREAD SHOWER CHANCES RETURN WITH SUNDAY EVENING LOW PRESSURE. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... HIGH PRES WL BLD IN BEHIND AN EXITING SHRTWV TDA. TERRAIN ENHANCED FLURRIES N AND E OF PIT SHOULD DCRS THIS AFTN...THOUGH CU RULE INDICATES COLD AIR CU/SC WL CONT THRU MUCH OF THE DAY. MRNG RAOBS SPPRT HIGH TEMPS RANGING FM THE LWR TO UPR 20S ACRS THE RGN. && .SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY/... BIG CHANGE IN THE OVERALL PATTERN THIS WEEKEND AS STRONG WAA GETS CRANKING ON SATURDAY AND CONTINUES THROUGH THE WEEKEND. SHOWERS COULD DEVELOP SATURDAY AFTERNOON ACROSS THE NORTHERN HALF OF THE AREA ALONG A PASSING WARM FRONT. MOST OF THE UPPER LEVEL SUPPORT AND DEEP MOISTURE WILL BE ACROSS THE NORTH...SO WILL PLACE THE HIGHEST POPS THERE. NOTICEABLY WARMER TEMPS ON SATURDAY. A SERIES OF WAVES WILL MOVE THROUGH SATURDAY NIGHT AND SUNDAY...KEEPING IN THE RISK FOR SCATTERED SHOWERS THROUGH THE PERIOD. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... WIDESPREAD SHOWERS WILL QUICKLY MOVE SUNDAY NIGHT. WARM PATTERN WILL CONTINUE THROUGH EARLY TUESDAY...WHEN THE NEXT FRONT WILL BRING COLDER AIR TO THE REGION FOR THE REMAINDER OF THE LONG TERM. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... EXPECT MVFR CIGS TO HOLD ON IN NORTHWEST FLOW AT KDUJ UNTIL AFTER SUNSET WHILE VFR CIGS BREAK OUT ELSEWHERE AS SURFACE RIDGE MOVES EAST ACROSS THE LOWER OHIO VALLEY. VFR INTO SATURDAY WITH ONLY AN INCREASE IN MID DECK SATURDAY MORNING. OUTLOOK.../SATURDAY NIGHT THROUGH WEDNESDAY/... POSSIBLE MVFR TO IFR CONDITIONS SUNDAY NIGHT INTO MONDAY AS THE NEXT STORM SYSTEM APPROACHES. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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