.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
A cold front will continue to drift south this evening and
overnight, bringing deteriorating conditions to all airfields.
Scattered thunderstorms - some of which could be severe - will
move across southern PA this afternoon and evening, bringing
brief MVFR to IFR visibility restrictions. The highest
likelihood is at MDT and LNS later this evening, but thunder is
also possible at JST and AOO. 

Behind the cold front, winds will shift to the north or
northeast and bring cold air damming/low clouds/drizzle to much
of the region on Thursday. IFR conditions will prevail areawide
for much of the day Thursday with some improvement possible at
JST, MDT, and LNS. Much of rest of the week will feature IFR 
and MVFR conditions, as the front stalls nearby and clusters of
showers and thunderstorms move across the region. 

It looks like we'll break into the warm sector on Friday and
ceilings should improve considerably at that point.


Outlook...

Thu-Sat...Numerous SHRA with restrictions possible, especially 
on the cool side of a frontal boundary that oscillates across 
central PA during this timeframe.

Sun...Restrictions possible with showers and thunderstorms ahead
of a strong cold front.

Mon...Breezy and cooler with MVFR N/W, VFR elsewhere.

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