-- Discussion containing changed information from previous version are highlighted. --
000
FXUS61 KPBZ 151724
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
124 PM EDT TUE APR 15 2014

.SYNOPSIS...
-- Changed Discussion --
RAIN AND SNOW SHOWERS WILL CONTINUE IN COLD NORTHWEST FLOW THROUGH
THE AFTERNOON BEFORE HIGH PRESSURE BUILDS OVERHEAD LATE TONIGHT. WELL
BELOW AVERAGE TEMPERATURES ARE EXPECTED WEDNESDAY BEFORE
MODERATING FOR THE END OF THE WEEK.
-- End Changed Discussion --

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
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PRECIPITATION COVERAGE CONTINUES TO DIMINISH WITH THE DEPARTURE OF
THE MID LEVEL JET TO THE EAST. HOWEVER...STRONG COLD ADVECTION
WITH TEMPERATURES OF -12C AT 850HPA SHOULD SUPPORT SNOW SHOWERS
THROUGH THE AFTERNOON. CONSIDERING HOW WARM IT HAS BEEN...SNOW
WILL STRUGGLE TO ACCUMULATE EXCEPT ON ELEVATED AND GRASSY
SURFACES. GENERALLY WENT WITH MINOR ACCUMULATIONS THROUGH THIS
EVENING. THE HI RES MODELS DO SUGGEST A PRONOUNCED LAKE ENHANCED
SNOW BAND THIS AFTERNOON BUT NOT SURE WHETHER THIS WILL
MATERIALIZE. OPTED TO BUMP UP POPS NORTH OF I-80 FOR NOW. SNOW
SHOWERS MAY ALSO LINGER IN UPSLOPE LOCATIONS THROUGH LATE THIS
EVENING WITH THE MOISTURE PROFILE TOUCHING THE DENDRITIC GROWTH
ZONE. HOWEVER...HAVE NOT ADDED ANY ACCUMULATIONS OVER AN INCH FOR
NOW AS HIGH PRESSURE SHOULD QUICKLY DRY OUT THE REGION OVERNIGHT.
-- End Changed Discussion --

&&

.SHORT TERM /6 PM THIS EVENING THROUGH THURSDAY/...
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COLD AIR WILL REMAIN IN PLACE INTO EARLY WEDNESDAY MORNING. ANY
SNOW SHOWER ACTIVITY SHOULD DECREASE LATE THIS EVENING AS
INVERSIONS DROP...SUBSIDENCE INCREASE AND WINDS ALOFT SHIFT TO A
MORE NORTHERLY DIRECTION. THE COLDEST AIR BEGINS TO RETREAT
NORTHWARD AS DAWN APPROACHES WEDNESDAY.

SURFACE HIGH WILL PROVIDE A DRY WEDNESDAY WITH SUNSHINE...HOWEVER
TEMPS WILL REMAIN BELOW NORMAL.

WARMING TREND CONTINUES ON THURSDAY.
-- End Changed Discussion --

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
A RETURN TO SPRING FOR THE LONG TERM...WITH THE RISK FOR SHOWERS
FRIDAY NIGHT/SAT.

&&

.AVIATION /17Z TUESDAY THROUGH SATURDAY/...
MOST SITES HAVE CHANGED OVER TO SNOW...WITH DUJ/LBE/MGW EXPECTED TO
CHANGE TO ALL SNOW BY 16Z. IFR SNOW IS EXPECTED FOR A FEW
HOURS...WITH CONDITIONS IMPROVING TO MVFR DURING THE EARLY AFTERNOON
AS SNOW DIMINISHES IN INTENSITY. OCCASIONAL FLURRIES AND SNOW
SHOWERS WILL CONTINUE DUE TO COLD ADVECTION OFF THE GREAT
LAKES...KEEPING MVFR STRATOCU UNTIL EARLY WED MORNING.

.OUTLOOK.../WEDNESDAY THROUGH SATURDAY/...
NXT CHC FOR GENERAL RESTRICTIONS IS EXPECTED WITH A WEEKEND LOW
PRES ADVN AND PASSAGE.

&&

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

&&

$$