Area Forecast Discussion
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000 FXUS61 KPBZ 280805 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 405 AM EDT FRI AUG 28 2015 .SYNOPSIS... WARMER WEATHER CAN BE EXPECTED FOR THE WEEKEND AS HIGH PRESSURE BUILDS. RAIN CHANCES RETURN SATURDAY NIGHT AND SUNDAY WITH A WEAK COLD FRONT. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... RISING HEIGHTS AND SURFACE HIGH PRESSURE WILL PROVIDE PLENTIFUL SUNSHINE WITH A FEW DIURNAL CUMULUS. TEMPERATURES WILL RISE TO SEASONABLE LEVELS. && .SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY/... BENIGN CONDITIONS WILL CONTINUE INTO SATURDAY WHILE SOUTHWEST FLOW AHEAD OF AN APPROACHING SHORTWAVE WILL PROMOTE INCREASING TEMPERATURES AND MOISTURE. WILL KEEP IN LATE DAY POPS IN THE WEST TO ACCOUNT FOR DIURNAL SHOWERS AND POSSIBLE THUNDERSTORMS AS THE SHORTWAVE APPROACHES AND GREATER INSTABILITY BECOMES PREVALENT. THE RISK FOR SHOWERS AND STORMS AGAIN SUNDAY AS ANOTHER SHORTWAVE APPROACHES AND WEAK SURFACE BOUNDARY SINKS SOUTHWARD. WITH TIMING OF BOTH...IT APPEARS BEST CHANCE WILL BE LATER IN THE AFTERNOON. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... WEAK FRONTAL BOUNDARY WILL EXIT EARLY MONDAY. A RETURN TO DRY AND WARMER WEATHER IS EXPECTED NEXT WEEK. && .AVIATION /08Z FRIDAY THROUGH TUESDAY/... MOST CLOUD COVER HAS DISSIPATED. MOSTLY CLEAR SKIES WILL BE THE RULE THROUGH THE TAF PERIOD...WITH PERHAPS A FEW THIN CIRRUS DURING THE DAYLIGHT HOURS. THE ONLY ISSUE IS FOG POTENTIAL. WITH EXPECTED LOW TEMPERATURES HOVERING AROUND OR JUST UNDER CROSSOVER TEMPERATURES...PLUS A DRIER GROUND THAN NORMAL...THE FORECAST IS TRICKY. THINK THAT IFR WITH TEMPO LIFR IS LIKELY AT THE USUAL SITES LIKE ZZV...HLG...AND FKL/DUJ. IN GENERAL...MVFR AND POSSIBLE BRIEF IFR IS EXPECTED ELSEWHERE. FOG WILL BURN OFF BY MIDMORNING...WITH VFR CONDITIONS AND LIGHT WINDS FORECAST FOR THE AFTERNOON AND EVENING. OUTLOOK...FRIDAY NIGHT THROUGH TUESDAY... NO EXTENSIVE IFR IS EXPECTED...ALTHOUGH BRIEF RESTRICTIONS IN SCATTERED SHRA/TSRA ARE POSSIBLE OVER THE WEEKEND. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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