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FXUS61 KPBZ 232341
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
741 PM EDT WED APR 23 2014

.SYNOPSIS...
HIGH PRESSURE WILL KEEP CONDITIONS DRY AND COOL THROUGH THURSDAY. A
COLD FRONT WILL BRING ANOTHER ROUND OF SHOWERS FRIDAY.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
DRIER BOUNDARY LAYER AIR AND LARGE SCALE SUBSIDENCE ARE WORKING
INTO THE REGION FROM THE NORTHWEST AND QUICKLY ERODING THE
STRATOCUMULUS DECK THAT HAS BEEN RESIDENT OVER THE AREA ALL DAY.
THIS TREND WILL CONTINUE ALL EVENING UNTIL WE BECOME FULLY CLEAR
ACROSS THE BOARD. HIGH CLOUDS WELL IN ADVANCE OF THE NEXT SYSTEM
THAT WILL AFFECT THE REGION SHOULD START TO ADVANCE TOWARD THE
AREA TOWARD MORNING...HOWEVER THIS SYSTEM IS STILL A LONG LONG
WAVE FROM AFFECTING US OTHER THAN WITH CIRRUS. FRIES

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH SATURDAY/...
PLENTIFUL SUNSHINE WILL BE PRESENT ON THURSDAY AS SUBSIDENCE
DOMINATES. RIDGE OF HIGH PRESSURE WILL BREAK DOWN AS A SHORTWAVE
TROUGH APPROACHES FROM THE WEST BY FRIDAY MORNING. ASSOCIATED COLD FRONT
WITH SHOWERS ARE EXPECTED TO CROSS THE REGION BY FRIDAY
MORNING/AFTERNOON. INSTABILITY AT THIS TIME REMAINS INSUFFICIENT
TO PRODUCE THUNDER AND HAVE THEREFORE CONTINUED TO KEEP OUT OF
FORECAST.

A SECONDARY FRONT WILL APPROACH THE REGION BY EARLY SATURDAY
ASSOCIATED WITH THE UPPER LEVEL CLOSED LOW SHIFTING SOUTHEAST
TOWARDS NEW YORK. LIMITED MOISTURE IS DIAGNOSED WITH THIS FEATURE
AND THUS HAVE ADJUSTED TO CHANCE POPS ON SATURDAY.

TEMPERATURES ARE TO REMAIN MOSTLY BELOW NORMAL THROUGH THE PERIOD.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
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 /00Z THURSDAY THROUGH SUNDAY/...
VFR CONDITIONS EXPECTED FOR THE DURATION OF THE TAF PERIOD AS HIGH
PRESSURE BUILDS IN. SFC WINDS WILL REMAIN LIGHT THROUGH THURSDAY.

.OUTLOOK.../THURSDAY NIGHT THROUGH SUNDAY/...
THE NEXT CHANCE FOR GENERAL RESTRICTIONS WILL COME WITH A FRIDAY
COLDFRONT.

&&

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

&&

$$

National Weather Service Weather Forecast Office