FXUS61 KPBZ 041906
AFDPBZ
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
206 PM EST FRI DEC 4 2009
.SYNOPSIS...
A STORM SYSTEM MOVING ACROSS THE SOUTHEAST STATES SATURDAY WILL
BRING SOME SNOW ACCUMULATION TO THE RIDGES...MAINLY SOUTH OF THE
MASON DIXON LINE. HIGH PRESSURE SUNDAY WILL BRING DRY WEATHER BUT
BELOW NORMAL TEMPERATURES INTO MONDAY.
&&
.NEAR TERM /THROUGH SATURDAY/...
HIGH PRESSURE ACROSS THE DISTRICT THIS EVENING WILL BRING FAIR SKIES
AND DRY WEATHER. DRY WEATHER WILL PERSIST ACROSS MOST OF PA AND OH
SATURDAY BUT A STORM MOVING ACROSS SOUTHEAST STATES SATURDAY WILL
SPREAD SOME ACCUMULATING SNOW INTO THE MOUNTAINS... MAINLY SOUTH
OF THE MASON DIXON LINE. OCCASIONAL LIGHT SNOW MAY BE SEEN AS FAR
NORTH AS PITTSBURGH. THE STORM WILL PUSH RAPIDLY OFF THE EAST
COAST BY SATURDAY EVENING BRINGING AN END TO THE SNOW.
&&
.SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY/...
CHILLY HIGH PRESSURE WILL BUILD INTO THE DISTRICT SATURDAY NIGHT
WITH DRY WEATHER AND TEMPERATURES BELOW NORMAL. HIGH PRESSURE
SUNDAY WILL BRING SOME SUNSHINE AND DRY WEATHER.
&&
.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
LOW PRESSURE IS EXPECTED TO TRACK NORTHEAST THROUGH THE CENTRAL
GREAT LAKES WEDNESDAY. WITH THE ANTICIPATED THERMAL PROFILE...PRECIP
SHOULD START AS SNOW...OVER TO RAIN IN THE AFTERNOON...THEN BACK TO
SNOW AFTER THE SURFACE FRONT COMES THROUGH. A COLD NORTHWEST FLOW
WILL KEEP SNOW SHOWERS IN THE FORECAST FOR THURSDAY. AFTER A BRIEF
RIDGE OF HIGH PRESSURE MOVES ACROSS EARLY FRIDAY...A WARM FRONT
AHEAD OF AN APPROACHING LOW WILL BRINGING THE POTENTIAL FOR MORE
SNOW BY FRIDAY AFTERNOON. THIS LOW WILL THEN CROSS THE REGION
SATURDAY.
&&
.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
HIGH PRESSURE WILL PROVIDE FOR PREVAILING VFR CONDITIONS TONIGHT.
DEVELOPING LOW PRESSURE WILL MOVE UP THE EAST COAST SATURDAY.
MOISTURE WILL PUSH NORTHWEST FROM THIS LOW...BRINGING THE CHANCE FOR
SNOW FROM HLG-PIT-DUJ AND SOUTH BY LATE MORNING SATURDAY. MVFR
CONDITIONS WILL BE POSSIBLE IN LIGHT SNOW...WITH A PERIOD OF IFR NOT
OUT OF THE QUESTION...ESPECIALLY MGW/LBE.
AS THIS SYSTEM IS STILL EVOLVING...ANY VARIATIONS IN THE TRACK OF
THIS STORM WILL IMPACT THE EXACT LOCATION AND INTENSITY OF SNOWFALL.
AS THE LOW PUSHES FURTHER NORTHEAST SATURDAY EVENING...ANY SNOWFALL
OVER AREA TERMINALS SHOULD DIMINISH.
HIGH PRESSURE IS EXPECTED TO PROVIDE PREVAILING VFR CONDITIONS FOR
SATURDAY NIGHT THROUGH MONDAY MORNING. A WEAK COLD FRONT WILL BRING
A CHANCE FOR SNOW SHOWERS AND REDUCED CONDITIONS MONDAY AFTERNOON
AND NIGHT. A RETURN TO VFR IS EXPECTED TUESDAY...WITH HIGH PRESSURE.
&&
.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...NONE.
OH...NONE.
PA...NONE.
WV...NONE.
&&
$$
