Area Forecast Discussion
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000 FXUS61 KPBZ 180435 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 1235 AM EDT FRI APR 18 2014 .SYNOPSIS... A WEAK COLD FRONT WILL BRING A FEW CLOUDS TODAY...THEN HIGH PRESSURE WILL BUILD IN FOR THE WEEKEND. && .NEAR TERM /UNTIL 6 AM THIS MORNING/... EXP DRY WEA TNGT WITH PASSING HIGH CLDS AHD OF THE NXT WK APRCHG CDFNT. NOT OPTIMAL FOR RADIATIONAL COOLING TNGT WITH WNDS ABV THE SFC 20-30KT...SO INCRD LOW TEMPS TO NR SEASONAL AVGS. && .SHORT TERM /6 AM THIS MORNING THROUGH MONDAY/... A WK CDFNT WL CROSS THE GT LKS RGN THIS AFTN...BUT WITH LTD MOISTURE AND UPPR SPPRT WENT WITH A DRY FCST...THOUGH AN INCR IN CLDS IS EXPD. AFT FROPA...EXP HIGH PRES TO BLD IN THRU THE WKEND. TEMPS WL BE NR SEASONAL LVLS UNTIL SUN...WHEN SRLY FLOW AND WRM ADVCTN RTN TEMPS TO SVRL DEG ABV AVG. A WK SHRTWV WL BEGIN TO APRCH LTR MON BRINGING AN INCR IN CLDS. && .LONG TERM /MONDAY NIGHT THROUGH THURSDAY/... SHWR CHCS HAVE BEEN RETAINED FOR TUESDAY AS MDLS CONT TO INDICATE PASSAGE OF A SHRTWV TROF AND ASSOCIATED WEAK CDFNT. AMPLIFYING SHRTWV RIDGE...IN RESPONSE TO DEEPENING MTN STATES AND PLNS LOW...IS THEN EXPECTED TO DOMINATE THE MID WEEK PDS WITH WARM AND DRY CONDITIONS. THEREAFTER...THAT LOW WL BE PROGRESSING EWD...HENCE UPR OH PCPN CHCS WL BE ON THE INCRS AS THE WEEKEND APRCHS. && .AVIATION /06Z FRIDAY THROUGH TUESDAY/... VFR WEA IS EXPECTED TO CONT THROUGH TNGT DESPITE PASSAGE OF A CDFNT. WITH SPARSE MSTR AND LTD DYNAMICS...THE PRIMARY FRONTAL EFFECT WL BE A WIND SHIFT TO THE NW BY THIS EVE. .OUTLOOK.../FRIDAY NIGHT THROUGH TUESDAY/... THE NXT CHC FOR RESTRICTIONS IS EXPECTED WITH A TUESDAY CDFNT. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$ 07/15

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