FXUS61 KPBZ 011024
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
523 AM EST TUE DEC 1 2009

.SYNOPSIS...

AFTER A FEW MORNING SNOW FLURRIES...SURFACE HIGH PRESSURE WILL
PROVIDE DRY WEATHER THROUGH WEDNESDAY MORNING. A LOW PRESSURE
SYSTEM WILL THEN BRING RAIN FOR WEDNESDAY AFTERNOON INTO
THURSDAY.

&&

.NEAR TERM /THROUGH TODAY/...

A SHORT WAVE PIVOTING SOUTHEAST ACROSS NORTHERN CWA THIS
MORNING...COULD PRODUCE A FEW FLURRIES. OTHERWISE...BUILDING
SURFACE RIDGE WILL PROVIDE FOR DIMINISHING CLOUDS TODAY...AND A
PRIMARILY DRY AFTERNOON. MAX TEMPS WILL BE NEAR AVERAGE VALUES.

&&

.SHORT TERM /TONIGHT THROUGH THURSDAY/...

PARTLY TO MOSTLY CLEAR SKIES WILL ALLOW TEMPS TO FALL OFF TO...AT
OR BELOW FREEZING READINGS TONIGHT. CLOUDS WILL BE ON THE INCREASE
THROUGHOUT THE MORNING WEDNESDAY...WITH DEEPEST MOISTURE TO
SUPPORT PRECIP HOLDING OFF UNTIL AFTERNOON...EXCEPT FAR SOUTH.
WITH THE PROJECTED TRACK OF THE LOW...PRECIP SHOULD BE ALL RAIN
WEDNESDAY THROUGH THURSDAY. WITH GOOD WAA WEDNESDAY AHEAD OF THE
RAINFALL...EXPECT MAXES TO BE 5 TO 10 DEGREES ABOVE AVERAGE.

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...

DEEP DIGGING CLOSED LOW WILL MOVE FROM NORTHERN PLAINS TO GREAT
LAKES THROUGH PERIOD BRINGING COLDEST AIR OF SEASON WITH OFF AND
ON SNOW SHOWERS DUE TO LAKE EFFECT AND DISTURBANCES MOVING UNDER
CLOSED LOW. NOT MUCH TO ARGUE WITH FROM HPC PROGS AND FOLLOWED.

&&

.AVIATION /10Z TUESDAY THROUGH SATURDAY/...

FLURRIES/ISOLATED SNOW SHOWERS CONTINUE TO ROTATE ACROSS NORTHWEST
PA...AS A SHORTWAVE MOVES TO THE EAST...WITH PERHAPS A FLURRY OR TWO 
AS FAR SOUTH AS DUJ/FKL IN THE NEXT COUPLE OF HOURS. BROKEN TO 
OVERCAST MID DECK CEILINGS WILL CONTINUE ACROSS WESTERN PA THROUGH
THIS MORNING...WITH CLOUDS DECREASING FOR OHIO/WV PORTS. SOUTHWEST 
WINDS AROUND 10 KT WILL PREVAIL FOR MOST OF TODAY...WITH A FEW GUSTS 
TO 18-20KT INTO THIS AFTN. HIGH PRESSURE WILL BUILD OVER THE REGION 
FOR THIS EVENING...WITH FEW CLOUDS FOR MOST OF THE AREA BY THE
OVERNIGHT HOURS.

HIGH PRESSURE WILL EXIT THE AREA WEDNESDAY...WITH MID DECK CLOUDS
INCREASING. A STRONG STORM SYSTEM WILL MOVE NORTHEAST FROM THE DEEP 
SOUTH...CROSSING THE AREA LATE WEDNESDAY AFTN THROUGH 
THURSDAY...BRINGING RESTRICTIONS IN RAIN. CHANCES FOR RESTRICTIONS 
WILL CONTINUE FRIDAY AND SATURDAY AS POST SYSTEM LAKE ENHANCED SNOW 
SHOWERS WILL PREVAIL.

&&

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

&&

$$