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Area Forecast Discussion
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000
FXUS61 KPBZ 231429
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
1029 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 /UNTIL 6 PM THIS EVENING/...
THE SHORTWAVE TROUGH HAS MOVED EAST BUT DUE TO COLD NORTHWEST
FLOW...STRATOCU CONTINUES TO LINGER OVER THE REGION. HOWEVER...CLOUD
COVERAGE WILL BEGIN TO DECREASE BY THE AFTERNOON AS DRY AIR BEGINS
TO ENTRAIN ACROSS THE REGION WITH HIGH PRESSURE BUILDING FROM THE
WEST. TEMPERATURES WILL REMAIN WELL BELOW NORMAL DESPITE SUN
EXPOSURE.

&&

.SHORT TERM /6 PM THIS EVENING 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. WITH THE COLD FRONT
INTO EASTERN PENNSYLVANIA BY SATURDAY MORNING...SHOWERS SHOULD BE
ON THE DECLINE...ALTHOUGH WESTERLY FLOW WILL KEEP MOSTLY CLOUDY
SKIES AND ISOLATED SHOWERS THROUGH THE DAY. CLOUDS SHOULD THEN
DIMINISH SATURDAY NIGHT INTO SUNDAY. THE NEXT SYSTEM DEVELOPING
ACROSS THE CENTRAL PLAINS WILL SLOWLY DRIFT EAST. THE SYSTEM WILL
BRING A CHANCE OF RAIN BY MONDAY NIGHT...WITH SCATTERED SHOWERS
AND BELOW NORMAL TEMPERATURES CONTINUING THROUGH THE REST OF THE
PERIOD.

&&

.AVIATION /15Z WEDNESDAY THROUGH SUNDAY/...
STRATOCUMULUS WILL REMAIN THROUGH THE LATE MORNING...WITH PRIMARILY 
MVFR CIGS. FKL SHOULD DROP TO IFR...WITH ZZV/MGW POSSIBLY REMAINING 
VFR THROUGHOUT. CIGS SHOULD THEN SCATTER OUT THROUGH THE COURSE OF 
THE DAY...WITH SKIES BECOMING CLEAR BY SUNSET. OCCASIONAL GUSTS TO 
15-20 KT CAN BE EXPECTED OVERNIGHT THROUGH MID MORNING...WITH MOST 
LOCATIONS SEEING WINDS GUST TO 20-25 KT THROUGH THE AFTERNOON. WINDS 
WILL DROP BELOW 10 KTS BY THIS EVENING.

.OUTLOOK.../WEDNESDAY NIGHT THROUGH SATURDAY/...
VFR CONDITIONS WILL CONTINUE INTO EARLY FRIDAY...BEFORE BOUNDARY
WILL BRING RESTRICTIONS.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...NONE.
OH...NONE.
PA...NONE.
WV...NONE.

&&

$$






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