.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
Patchy morning fog and low stratus (AOB 500 ft AGL) will mix
out soon after sunrise today, with VFR favored & light winds of
~5 kts through the rest of the TAF period. Intermittent MVFR
ceilings are possible this morning and early afternoon,
primarily at KJST/KAOO, as diurnal/upslope cumulus develop.
Some showers and maybe even a rumble of thunder will move into
the Laurel Highlands (mainly Somerset County) for late this
morning with up to a few tenths of an inch of rain likely as
the northern edge of an original Midwest MCS slides across that
part of the stat.
The latter half of this 12Z TAF period will feature high
pressure nosing in from Canada with a weak backdoor cold front
moving into Central and Northern PA. A northeasterly wind shift
is expected behind the front, which could reach KBFD/KIPT
around or after 00Z Saturday.
Winds may gust to around 15 kts with the frontal passage,
primarily if it moves through during the evening before the
boundary layer stabilizes, with lower wind gusts (5-10 kts) if
it moves through later into the night.
Outlook...
Sat...AM fog possible, then VFR. Warm front moves in and
SHRA/TSRA likely W Sat night.
Sun...Restrictions possible in showers/thunderstorms.
Mon...CFROPA by Monday morning. SHRA/TSRA ending Mon AM. Mainly
VFR for most of the day.
Tue...Mainly dry.
&&