Area Forecast Discussion
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000 FXUS61 KPBZ 230432 AAC AFDPBZ AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE PITTSBURGH PA 1232 AM EDT WED APR 23 2014 .SYNOPSIS... A COOLER PATTERN FOR THE REST OF THE WEEK. THE NEXT CHANCE FOR SHOWERS WILL ARRIVE FRIDAY WITH THE PASSAGE OF ANOTHER FRONT. && .NEAR TERM /THROUGH TODAY/... FOR OVERNIGHT...HAVE MADE SOME ADJUSTMENT TO POPS AND CLOUDS. THE EXTENSION OF THE POPS WAS MADE USING THE PATH AND SPEED OF THE STRONG SHORTWAVE TROUGH...WHICH WILL DIG THROUGH OVERNIGHT. AIR ALOFT ASSOCIATED WITH THE TROUGH IS NOT PARTICULARLY COLD AND USING THE LATEST CRITICAL THICKNESS...ALL PRECIP SHOULD REMAIN LIQUID. TEMPS WERE UPDATED WITH THE LATEST LAMP NUMBERS. SHORTWAVE TROUGH QUICKLY SWINGS EAST OF THE AREA AFTER DAWN. THE COLD POOL ALOFT WILL BEGIN TO SLOWLY RECEDE NORTHWARD LATER THIS MORNING...EXITING INTO THE NORTHEAST BY LATE AFTERNOON. WITH THE WAA ALOFT...CLOUDS WILL DECREASE FROM SOUTH TO NORTH THROUGHOUT THE DAY. A RETURN OF SUN WILL HELP WITH THE TEMPS...BUT THEY WILL STILL END UP BELOW NORMAL. && .SHORT TERM /TONIGHT THROUGH FRIDAY/... DRY SURFACE HIGH WILL SWING THROUGH THE AREA TONIGHT AND THURSDAY. AN OPTIMAL SETUP FOR RADIATIONAL COOLING TONIGHT ALLOWING FOR TEMPS TO DROP WELL BELOW NORMAL. TEMPS MODERATE THURSDAY WITH PLENTY OF SUNSHINE AND WEAK WAA. FAST MOVING COOL FRONT WILL CROSS THE AREA LATE THURSDAY NIGHT AND FRIDAY MORNING. SHOWERS WILL CROSS THE REGION WITH FRONTAL PASSAGE. THE BOUNDARY IS ASSOCIATED WITH AN OCCLUDED SYSTEM WHICH WILL SWING THROUGH THE UPPER GREAT LAKES ON FRIDAY. DUE TO THE OVERALL STRUCTURE OF THE SYSTEM...THE AIR BEHIND THE FRONT IS NOT MUCH COOLER THEN THE AIR MASS THAT WILL BE IN PLACE AHEAD OF IT. THERE WILL BE A WIND SHIFT...BUT TEMPS WILL RECOVER NICELY FRIDAY WITH PLENTY OF SUNSHINE IN THE AFTERNOON. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... A SECONDARY FRONT WILL SWING THROUGH LATE FRIDAY NIGHT. THIS FRONT WILL HAVE MUCH STRONGER CAA BEHIND IT. WILL INCLUDE CHANCE POPS WITH THE PASSAGE OF THIS BOUNDARY FRIDAY NIGHT. CHANCE POPS THROUGH SATURDAY IN THE COLDER AIR MASS. SUNDAY LOOKS TO BE MAINLY DRY AND COOL. LARGE AND COMPLEX SYSTEM DEVELOPING IN THE CENTRAL PLAINS EARLY NEXT WEEK WITH MODELS HAVING TIMING ISSUES. FOR NOW WENT WITH A DRY DAY TO START THE WORK WEEK. TEMPERATURES GENERALLY BELOW AVERAGE FOR THE PERIOD. && .AVIATION /04Z WEDNESDAY THROUGH SUNDAY/... SHOWERS HAVE CLEARED ALL TERMINALS TO THE EAST LEAVING MAINLY VFR CONDITIONS IN THEIR WAKE WITH GUSTY NW WINDS. SOME ADDITIONAL COLD ADVECTION STRATOCUMULUS ARE FORECAST TO MOVE OVER THE AREA OVERNIGHT...HOWEVER THEY SHOULD QUICKLY MIX OUT ON WEDNESDAY...YIELDING TO VFR CONDITIONS WITH OCCASIONALLY GUSTY NORTHWEST WINDS STILL AFFECTING ALL TERMINALS. FRIES .OUTLOOK.../WEDNESDAY NIGHT THROUGH SATURDAY/... VFR CONDITIONS WILL CONTINUE UNTIL AT LEAST FRIDAY. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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