Area Forecast Discussion
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000 FXUS61 KPBZ 211836 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 236 PM EDT MON APR 21 2014 .SYNOPSIS...
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SHOWERS ARE LIKELY TO ACCOMPANY A TUESDAY COLD FRONT.
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&& .NEAR TERM /THROUGH TUESDAY/...
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CLDS WL BE ON THE INCRS TNGT AS AN UPR TROF...CDFNT APCH. LTD ...AND SHORT LIVED DYNAMICS ARE EXPECTED TO SPPRT A BOUT OF SHWRS UNTIL AFTN. LATEST NAM CONTS TO INDICATE SOME WEAK INSTABILITY AFTR DAYBREAK...THUS HAVE ADDED A SLIGHT THUNDER MENTION FOR THE ERN HALF OF THE CNTY WRNG AREA FOR A CPL OF HOURS. QPF UNDR THIS SCENARIO IS PROJECTED AT ONE TO TWO TENTHS OF AN INCH. SHWRS WL DIMINISH DURING THE AFTN GIVEN CURRENT TIMING OF FRONT...AND MID LVL TROF PROGRESSION. NR TERM TEMPS WERE FORECAST USING THE LATEST LAMP GUIDANCE AND NAM TRENDS.
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&& .SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY/...
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COLD ADVCTN VIA NW FLOW SHOULD MAINTAIN STRATOCU CLDS AND POSSIBLY A STRAY SHWR INTO TUESDAY NGT. BLDG HIGH PRES WL SUPPRESS THOSE PARAMETERS LTR ON WEDNESDAY AND INTO THURSDAY. POST FRONTAL TEMPS ARE FORECAST ABOUT 10 DEGREES UNDR THE AVGS...BUT QUICK MODERATION BACK TWD THE SEASONAL NORMS IS EXPECTED ON THURSDAY.
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&& .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
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ANOTHER CDFNT IS TIMED FOR A FRIDAY APCH AND PASSAGE AS UPR LOW DVLPS ACRS THE GREAT LAKES AND TWD ERN CANADA BY THE WEEKEND. LIKELY POPS WERE THUS INCLUDED WITH THE FRONT...AND CHC POPS WERE MAINTAINED INTO THE WEEKEND ALNG WITH COOL TEMPS.
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&& .AVIATION /18Z MONDAY THROUGH SATURDAY/...
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VFR AND LGT S...TO SW WIND CAN BE EXPECTED THROUGH TNGT...BUT DETERIORATION TO GENL MVFR SHOULD BE ANTICIPATED ON TUESDAY MRNG AS A CDFNT APCHS HE UPR OH REGION. COLD ADVCTN IN THE WAKE OF THE BNDY WL MAINTAIN STRATOCU...ISOLD SHWRS...AND RESTRICION POTENTIAL INTO TUE NGT...MAINLY FOR PORT N AND E OF PIT. .OUTLOOK.../TUESDAY NGT THROUGH FRIDAY/... VFR WL QUICKLY RTN WITH MID WEEK HIGH PRES...BUT SHWRS AN RESTRICTION POTENTIAL ARE ANTICIPATED WITH A FRIDAY CDFNT.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$ 15

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