Area Forecast Discussion
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000 FXUS61 KPBZ 181030 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 630 AM EDT THU SEP 18 2014 .SYNOPSIS... DRY AND COMFORTABLE CONDITIONS WILL CONTINUE THROUGH SATURDAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/...
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NO CHANGES NEEDED EARLY THIS MORNING AS LATEST OBSERVATIONAL TRENDS ALIGN WELL WITH THE ONGOING FORECAST. PREV DISCUSSION FOLLOWS.. SURFACE HIGH MOVING THROUGH THE GREAT LAKES AND NORTHWEST FLOW ALOFT WILL KEEP THE AREA DRY...COOL AND COMFORTABLE. CUMULUS CLOUDS WILL MOVE THROUGH FROM TIME TO TIME.
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&& .SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY/... SURFACE HIGH WILL DRIFT TOWARD AND AWAY FROM THE EAST COAST THROUGH THE SHORT TERM PERIOD. NORTHWEST FLOW ALOFT WILL BE REPLACED BY A WEAK RIDGE LATE FRIDAY AND THEN ZONAL FLOW ON SATURDAY. WINDS AT AND ABOVE THE SURFACE WILL EVENTUALLY SHIFT TO THE SOUTH-SOUTHWEST BY SATURDAY...ALLOWING FOR WARMER AIR TO SURGE NORTHWARD. SATURDAY WILL SEE TEMPERATURES 5 DEGREES OR SO ABOVE NORMAL. && .LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... COLD FRONTAL PASSAGE WILL BRING GOOD CHANCE FOR SHOWERS SUNDAY. OTHER THEN THIS OVERALL DRY AND COOL PATTERN IS EXPECTED FOR THE REMAINDER OF THE LONG TERM PERIOD. && .AVIATION /10Z THURSDAY THROUGH MONDAY/...
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WIDELY SCATTERED VISIBILITY RESTRICTIONS WILL IMPROVE QUICKLY BY MID MORNING ACROSS THE REGION...WITH VFR CONDITIONS MAINTAINED THE REMAINDER OF THE DAY. FORECAST SOUNDINGS STILL SHOW SUFFICIENT LOW LEVEL MOISTURE FOR SCT TO BKN SHALLOW CUMULUS AROUND 5-6KFT...AND WINDS WILL BE NORTHERLY UNDER 10KTS BEHIND A PASSING WEAK COLD FRONT. OUTLOOK...THURSDAY THROUGH SUNDAY... VFR CONDITIONS TO BE MAINTAINED UNTIL A COLD FRONT CROSSES THE REGION ON SUNDAY.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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