Area Forecast Discussion
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000 FXUS61 KPBZ 310511 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 111 AM EDT SUN AUG 31 2014 .SYNOPSIS... SHOWERS AND THUNDERSTORMS WILL BECOME MORE NUMEROUS TONIGHT INTO SUNDAY WITH HUMID CONDITIONS. && .NEAR TERM /THROUGH TODAY/... BROAD AREA OF SHOWERS AND ISOLATED THUNDERSTORMS MOVING NORTHEAST FROM THE TENNESSEE VALLEY WITH A SHORTWAVE AHEAD OF APPROACHING UPPER LEVEL TROUGH. CAT POPS CONTINUED FOR LATER TODAY AS SYSTEM TRANSITIONS EAST. EXPECT A GENERAL ONE HALF INCH TO ONE INCH RAINFALL WITH LOCALIZED HIGHER AMOUNTS. TEMPERATURES WILL BE HELD DOWN TOWARD SEASONAL AVERAGE THIS AFTERNOON WITH CLOUDS AND SHOWERS. && .SHORT TERM /TONIGHT THROUGH WEDNESDAY/... SHOWERS WILL DIMINISH NORTHWEST TO SOUTHEAST SUNDAY NIGHT AS SHORTWAVE EXITS AND UPPER LEVEL TROUGH IS SHEARED OUT AND A MUCH DEEPER UPPER TROUGH MOVES INTO THE WESTERN GREAT LAKES. WARM AND HUMID MONDAY IN SOUTHWEST FLOW ALOFT...BUT NO REAL KICKER FOR CONVECTION SO CHANCE POPS MAINTAINED WITH MAINLY DIFFERENTIAL HEATING ACTING ON LOW LEVEL INSTABILITY. FAIRLY STRONG COLD FRONT AND UPPER THROUGH WILL BRING LIKELY POPS BACK TO THE FORECAST TUESDAY. SOMEWHAT DRYER HIGH PRESSURE WILL GIVE A DRY AND SEASONAL FORECAST FOR WEDNESDAY. && .LONG TERM /WEDNESDAY NIGHT THROUGH SATURDAY/... HIGH PRESSURE MOVES OVER THE EAST COAST WEDNESDAY NIGHT INTO THURSDAY AND SHOULD MANAGE TO DEFLECT PRECIPITATION ASSOCIATED WITH THE NEXT COLD FRONT UNTIL AT LEAST FRIDAY. COLD FRONT COULD GET CLOSE ENOUGH BY FRIDAY AFTERNOON TO BRING AT LEAST AN ISOLATED SHOWER TO WESTERN AREAS. TEMPERATURES WILL BE A FEW DEGREES ABOVE NORMAL. && .AVIATION /06Z SUNDAY THROUGH THURSDAY/... VFR CONDS WL DCR AS A SHRTWV ADVNS ACRS THE RGN OVRNGT INTO SUN...BRINGING SHWRS AND WDSPRD MVFR/PTCHY IFR CONDS. A FEW TSTMS ARE PSBL BUT WITH INSTBY/COVG LMTD ONLY INCLUDED A VCTS MENTION SUN AFTN ATTM. OUTLOOK.../SUNDAY NIGHT THROUGH THURSDAY/... RSTRNS WL CONT SUN NGT AS A DISTURBANCE EXITS. RSTRNS ARE PSBL AGAIN WITH A TUE CDFNT. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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