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Area Forecast Discussion
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000
FXUS61 KPBZ 231900
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
300 PM EDT THU OCT 23 2014

.SYNOPSIS...
HIGH PRESSURE WILL RESULT IN DRY CONDITIONS AND
SEASONAL TEMPERATURES HEADING INTO THE WEEKEND. 

&&

.NEAR TERM /THROUGH FRIDAY NIGHT/...
HIGH PRESSURE BUILDING IN ACROSS THE REGION WILL RESULT 
IN A WARMING TREND IN TEMPERATURES AND DRY CONDITIONS THROUGH
FRIDAY NIGHT. NORTHWESTERLY WINDS WILL DECREASE EARLY THIS EVENING
AS THE PRESSURE GRADIENT RELAXES, WHICH WILL ALLOW OVERNIGHT
INVERSIONS TO SET UP. WITH THAT THERE IS POTENTIAL FOR PATCHY FOG
DEVELOPMENT EARLY FRIDAY MORNING OVER NORTHERN AND EASTERN ZONES,
HOWEVER, IF MORE UPPER LEVEL CLOUD COVERAGE MOVES IN FROM THE
WEST COMES THAN CURRENTLY FORECAST TEMPERATURES MAY NOT DROP FAR
ENOUGH TO BRING SURFACE DEWPOINT DEPRESSIONS ENOUGH. FOR NOW HAVE
OPTED TO INCLUDE MENTION OF FOG IN THE FORECAST FROM EARLY MORNING
UNTIL SHORTLY AFTER SUNRISE FOR THESE AREAS. A SHORTWAVE WILL
BEGIN TO PASS OVER THE FORECAST AREA LATE FRIDAY AFTERNOON BUT IS
NOT EXPECTED TO HAVE MUCH IMPACT ON SENSIBLE WEATHER AS THERE IS
VERY LITTLE MOISTURE TO WORK WITH.

&&

.SHORT TERM /SATURDAY THROUGH SUNDAY/...
FOR THE WEEKEND A MOISTURE STARVED SHORTWAVE WILL QUICKLY CROSS
THE REGION SATURDAY WITH AN INCREASE IN CLOUDS AND ONLY SLIGHT
CHANCE POPS ESPECIALLY NORTH OF PITTSBURGH. DRY AND BREEZY SUNDAY
IN NORTHWEST FLOW.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
RIDGING WL ADVN EWD ACRS THE RGN INTO ERLY NXT WK KEEPING DRY WEA IN 
THE FCST. MDLS DIFFER ON TIMING AND STRENGTH OF A MID WK TROF. GENLY 
SIDED CLOSE TO A WEAKER ENSEMBLE/WPC SOLN...KEEPING LOW SHWR CHCS 
MID WK. WRM ADVCTN IS EXPD TO BRING ABV SEASONAL AVG TEMPS ERLY NXT 
WK...WITH A RTN TO SEASONABLY COOL NMBRS AFT THE PASSAGE OF THE MID 
WK TROF.

&&

.AVIATION /19Z THURSDAY THROUGH TUESDAY/...
THERE IS A SLIGHT CHANCE OF PATCHY MVFR VISIBILITY RESTRICTIONS
EARLY FRIDAY MORNING, BUT IN GENERAL VFR CONDITIONS ARE
ANTICIPATED THROUGH THE WEEKEND AND INTO NEXT WEEK.

O
THE RGN.

.AVIATION /FRIDAY THROUGH MONDAY/...
PATCHY MVFR FOG WILL BE POSSIBLE FRIDAY MORNING, BUT OTHERWISE, NO
RESTRICTIONS ARE ANTICIPATED THROUGH AT LEAST EARLY NEXT WEEK.

&&

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

&&

$$






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