Area Forecast Discussion
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000
FXUS61 KPBZ 261129
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
629 AM EST FRI DEC 26 2014

.SYNOPSIS...
HIGH PRESSURE WILL BRING DRY AND MILD WEATHER THROUGH SATURDAY. A
COLD FRONT WILL BRING THE NEXT CHANCE OF RAIN SATURDAY NIGHT AND
SUNDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...

THE ONGOING FORECAST ALIGNS WELL WITH TRENDS AND ONLY MINOR
CHANGES WERE NEEDED EARLY THIS MORNING TO INCREASE HOURLY
TEMPERATURES SLIGHTLY ACROSS NORTHEAST COUNTIES WHERE LOWER LEVEL
CLOUDS HAVE BEEN SLOW TO DIMINISH. PREV DISCUSSION FOLLOWS..

INCRG SBSDNC UNDER BLDG HIGH PRES WL CONT TO ERODE THE STRATOCU
LYR THIS MRNG...OTRW MCLR SKIES ARE EXPD TDA WITH HIGH PRES IN
CTRL. TEMPS SHOULD AVG ARND 10 DEG ABV SEASONAL LVLS.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH MONDAY/...
RIDGING AND WRM ADVCTN WL CONT THRU SAT IN ADVN OF AN APCHG
SHRTWV. THIS SHRTWV AND ITS ASSOCIATED CDFNT IS PROGGED FOR A SAT
NGT/SUN PASSAGE. MAINTAINED LIKELY POPS FOR SHWRS WITH SUFFICIENT
MSTR AND UPR SPPRT PROGGED. CONTD PCPN CHCS INTO ERLY MON S OF PIT
AS A WAVE DVLPS ALG THE FNT...WHICH COULD SPREAD A LTL MORE PCPN
INTO THAT RGN. EXP MAINLY RAIN...THOUGH A BRF CHG OVER TO SNW
SHWRS IS PSBL BEFORE PCPN ENDS. ABV SEASONAL TEMPS ARE EXPD THRU
THE PD.

&&

.LONG TERM /MONDAY NIGHT THROUGH THURSDAY/...
THE EXTENDED WILL LARGELY BE DRY WITH A DECREASING TREND IN
TEMPERATURES AS A BROAD TROUGH IN THE LONGWAVE PATTERN SLOWLY SAGS
SOUTH ACROSS THE EASTERN CONUS. THERE IS A SLIGHT CHANCE OF LIGHT SNOW
SHOWERS ASSOCIATED WITH A SHORTWAVE TRANSITIONING THROUGH THE FLOW
DEVELOP MAINLY ALONG AND NORTH OF INTERSTATE 80 DURING THE MIDDLE
OF THE WEEK...BUT MOISTURE APPEARS TO BE QUITE LIMITED. FURTHER
OUT...AN AREA OF LOW PRESSURE PREVIOUSLY CLOSED OFF OVER THE
SOUTHWEST WILL EVENTUALLY IMPACT THE REGION...BUT MODELS VARY
WIDELY IN TIMING OF THIS FEATURE...BY A MARGIN OF SEVERAL DAYS.

&&

.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
TAF SITES WILL IMPROVE FROM MVFR TO VFR THIS MORNING AS DRIER AIR
CONTINUES TO MOVE IN FROM THE WEST...WITH ALL SITES VFR SHORTLY
AFTER DAYBREAK.

OUTLOOK.../SATURDAY THROUGH WEDNESDAY/...
ANOTHER FRONTAL SYSTEM WILL GENERATE THE NEXT CHANCE FOR GENERAL
FLIGHT RESTRICTIONS BY SUNDAY.

&&

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

&&

$$





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