Area Forecast Discussion
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000 FXUS61 KPBZ 051047 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 647 AM EDT SAT SEP 5 2015 .SYNOPSIS... WARM AND HUMID CONDITIONS WILL CONTINUE UNTIL A COLD FRONT APPROACHES IN THE MIDDLE OF NEXT WEEK. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... LATEST IR IMAGERY SHOWS STRATUS TRAPPED EAST OF THE RIDGES WHILE WHAT`S LEFT OF OVERNIGHT CLOUD COVERAGE OVER THE FORECAST AREA CONTINUING TO DISSIPATE. DEWPOINT DEPRESSIONS ARE A LITTLE WIDE THAN OBSERVED 24HRS AGO...HOWEVER...ISOLATED PATCHES OF FOG ARE STILL A DECENT BET AROUND AND SHORTLY AFTER SUNRISE. THE CURRENT FORECAST IS ON TRACK AND NO UPDATES WERE NEEDED THIS MORNING. PREV DISCUSSION FOLLOWS.. ANOTHER WARM DAY WITH LESS CHANCE OF CONVECTION GIVEN INCREASED SUBSIDENCE UNDER STRENGTHENING HIGH PRESSURE. EXPECT HIGHS FROM 5 TO 10 DEGREES ABOVE THE AVERAGES ONCE AGAIN. && .SHORT TERM /6 PM THIS EVENING THROUGH MONDAY/... MID/UPPER RIDGE IS PROJECTED TO CONTINUE AMPLIFYING ON SUNDAY...THUS SUPPRESSING CONVECTION POTENTIAL FOR THE START OF THE NEW WEEK. NO REAL CHANGE IS INDICATED TO THE WARM AIRMASS. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... INCREASING PRECIP CHANCES AND RELIEF FROM THE WARMTH ARE PROJECTED TO COME WITH A MID WEEK COLD FRONT. && .AVIATION /12Z SATURDAY THROUGH WEDNESDAY/... PATCHY MVFR FOG WILL BE POSSIBLE UNTIL MID MORNING. IFR RESTRICTIONS LOOK UNLIKELY WITH THE EXCEPTION OF SITES NORTH OF I80 WHERE FKL AND DUJ MAY SEE A BRIEF PERIOD OF DENSER FOG DEVELOPMENT. VFR CONDITIONS EXPECTED THE REMAINDER OF THE DAY. OUTLOOK...SATURDAY NIGHT THROUGH WEDNESDAY... THE CHANCE FOR GENERAL RESTRICTIONS WILL INCREASE WITH THE APPROACH OF A COLD FRONT ON WEDNESDAY. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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