Area Forecast Discussion
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000 FXUS61 KPBZ 281713 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 113 PM EDT MON JUL 28 2014 .SYNOPSIS...
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A SERIES OF DISTURBANCES IN COOL NORTHWEST FLOW WILL BRING SHOWER CHANCES INTO THE MIDDLE OF THE WEEK.
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&& .NEAR TERM /THROUGH TONIGHT/...
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HAVE REMOVED THUNDER FROM FORECAST AS SHOWERS NOT REACHING DEEP ENOUGH ALOFT FOR THUNDER TO BE WORTH MENTIONING. MAIN BAND OF SHOWERS WITH CROSSING UPPER LEVEL TROUGH WILL CONTINUE TO WORK SOUTHEAST ACROSS REGION THROUGH THE AFTERNOON. AFTER THE SHORTWAVE PASSES EAST THIS EVENING LEFTOVER UPSLOPE SHOWERS WILL END IN THE RIDGES. THE RECORD LOW MAXIMUM TEMPERATURES AT PITTSBURGH FOR JULY 28TH IS 72 SET IN 1875. THEN A QUITE COOL OVERNIGHT WITH RECORD LOWS BEING CHALLENGED ACROSS THE REGION. THE RECORD LOW IN PITTSBURGH FOR JULY 29TH IS 52 SET IN 1982.
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&& .SHORT TERM /TUESDAY THROUGH THURSDAY/...
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UPPER TROUGH WILL BE ENTRENCHED OVER THE GREAT LAKES/NORTHEAST DURING MIDWEEK...AS UPPER LOW CENTER SINKS SOUTHWARD FROM THE SOUTHERN END OF HUDSON BAY. ALTHOUGH WEAK VORT MAXES WILL BE ROTATING THROUGH AND KEEPING THE TROUGH IN PLACE...H500 HEIGHTS WILL BE ON A SLOW INCREASE. THIS WILL ALLOW FOR A MODERATING TREND IN TEMPERATURES...FROM READINGS AROUND 70 ON TUESDAY TO THE MID 70S ON THURSDAY. THERE WILL BE THE POTENTIAL FOR AT LEAST A FEW DIURNALLY-FORCED ISOLATED SHRA EACH AFTERNOON. THIS WILL BE MAINLY CONFINED TO NW PA ON TUESDAY AS MOISTURE REMAINS RELATIVELY LOW. ON WEDNESDAY MOISTURE IS BETTER WITH SHORTWAVE AND CHANCE POPS ARE INDICATED IN MOST AREAS.
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&& .LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/... THE UPPER TROUGH REMAINS IN PLACE THROUGH THE EXTENDED PERIOD. H500 HEIGHTS RISE A BIT MORE FRIDAY..ALLOWING A FEW LOCATIONS TO TOUCH THE LOWER 80S FOR HIGH TEMPS. ISOLATED DIURNAL SHOWERS ONCE AGAIN...PARTICULARLY IN THE NW. MODELS THEN HINT THAT THE TROUGH GETS REINFORCED SLIGHTLY OVER THE WEEKEND...KNOCKING TEMPERATURES BACK A COUPLE OF DEGREES. BETTER SHOWER CHANCES RETURN AS WELL...WITH CHANCE POPS EACH DAY THROUGH MONDAY AS MINOR WAVES ROTATE THROUGH THE TROUGH. LEFT THUNDER OUT FOR NOW BUT CANNOT RULE OUT OVER THE WEEKEND. ALL IN ALL...NO MAJOR SYSTEMS OR SUMMER HEAT FORESEEN. && .AVIATION /18Z MONDAY THROUGH SATURDAY/...
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ADVNG ERN GT LKS LOW PRES WL WDSPRD BRING MVFR SC AND A NMRS SHWRS TO THE RGN THRU THIS AFTN...ALG WITH GUSTY W-NW WNDS. LINGERING VFR SC/DIURNAL CU IS EXPD AFT THE PASSAGE OF THE LOW TNGT INTO TUE. OUTLOOK.../TUESDAY NIGHT THROUGH FRIDAY/... NO WDSPRD RSTRNS EXPD.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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