Area Forecast Discussion
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000
FXUS61 KPBZ 250553
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
1253 AM EST THU DEC 25 2014

.SYNOPSIS...
WINDY CONDITIONS WILL CONTINUE AS A STRONG COLD FRONT HAS SWEPT
ACROSS THE UPPER OHIO VALLEY REGION.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
UPDTD TO EXPIRE WND ADVY OUTSIDE OF THE RIDGES AS GUSTS SUBSIDE.
AN APCHG UPR TROF WL KEEP SCT RAIN AND SNW SHWRS ACRS THE RGN AS
THE MAIN BAND OF SHWRS INVOF THE EXITING CDFNT DMNSH. TEMPS ARE
EXPD TO FALL INTO THE 30S.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM FRIDAY/...
SOUTHWEST WINDS WILL DIMINISH QUICKLY TOMORROW MORNING...AND A
ONE-SHOT DAY OF COLD AIR WILL ARRIVE WITH TEMPERATURES STRUGGLING TO
GET BACK TO 40 DEGREES UNDER CLOUD SKIES. ENOUGH RESIDUAL LIFT
AROUND THE DEPARTING CYCLONE WILL PERSIST IN THE MORNING TO GENERATE
SOME SCATTERED SNOW SHOWERS...ALTHOUGH THE MOISTURE DEPTH IS SO
SHALLOW THAT IT MAY AGAIN BE MORE OF A DRIZZLE/SNIZZLE.

&&

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
AS IS TYPICAL WITH PROGRESSIVE NEGATIVE TILT TROUGHS...THE BRIEF
SHOT OF COLD AIR WILL DEPART AS THE SYSTEM LIFTS INTO THE CANADIAN
MARITIMES...ALLOWING FOR A TEMPORARY RETURN TO ZONAL AND/OR DAMPENED
MID LEVEL RIDGING OVER THE EASTERN CONUS FRIDAY AND SATURDAY...FEATURING
MUCH ABOVE NORMAL TEMPERATURES.

A PROGRESSIVE WAVE WILL SETTLE ACROSS THE AREA SATURDAY NIGHT AND
EARLY SUNDAY BRINGING A CHANCE FOR PRECIPITATION...AND BETTER ACCESS
TO MORE SEASONABLY COLD AIR IN ITS WAKE.

&&

.AVIATION /06Z THURSDAY THROUGH MONDAY/...
CIGS WILL DROP BACK TO MVFR...WITH EVENTUAL IFR EXPECTED IN THE
COLDER AIR BEHIND THE EXITING COLD FRONT.

WIND WILL SLOWLY DIMINISH WITH TIME OVERNIGHT BUT STILL EXPECT AT
LEAST 20-30 KNOT GUSTS THROUGH THE REMAINDER OF THE TAF PERIOD.
LINGERING SHWRS WILL CHANGE OVER TO SNOW SHWRS DURING THE PREDAWN
HRS...BUT SIGNIFICANT RESTRICTIONS FROM SNOW ARE NOT FORECAST
GIVEN EXPECTATIONS OF SCT ACTIVITY.

OUTLOOK.../WEDNESDAY NIGHT THROUGH MONDAY/...
THE NXT CHC FOR GENL RESTRICTIONS WL COME WITH A SATURDAY FRONTAL
SYSTEM.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...WIND ADVISORY UNTIL 4 AM EST EARLY THIS MORNING FOR MDZ001.
OH...NONE.
PA...WIND ADVISORY UNTIL 4 AM EST EARLY THIS MORNING FOR PAZ074-076.
WV...WIND ADVISORY UNTIL 4 AM EST EARLY THIS MORNING FOR WVZ023-041.

&&

$$





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