.AVIATION /06Z FRIDAY THROUGH TUESDAY/...
VFR conditions are expected through the TAF period with mainly
dry conditions likely into the morning. A few showers and 
thunderstorms have developed north of the PA/NY border along a 
boundary and these may slowly drift south through the rest of 
the night. There is around a 20 percent chance that these reach 
BFD, but we will keep them out of the TAF as confidence remains 
low.

Scattered showers and thunderstorms are expected to develop 
along and north of I-80 Friday afternoon, but there is still 
some lingering uncertainty regarding the exact timing and 
coverage of storms. For now, we have added PROB30s for BFD, UNV,
and IPT to highlight the thunderstorm potential, but this will 
need to be refined throughout the day as confidence increases. 
It is possible that storms could develop farther to the south as
well, but there is less than a 30 percent chance that they 
impact any of the other TAF sites. Some of the storms that
develop will be capable of producing strong wind gusts,
potentially in excess of 40 knots. Heavy rainfall may also 
briefly reduce visibility if storms move directly over any 
airfields.

Very hot conditions are expected once again today, with highs
expected to be in the 90s/low 100s. This will continue to lead
to density altitude concerns across Central PA.

Outlook...

Sat...Patchy AM fog; otherwise VFR. Hot & humid with PM 
t-storms psbl. High density altitude concerns possible.

Sun-Tue...Restrictions possible in afternoon t-storms.

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