Aviation Forecasts and Information Page - NWS State College PA

.AVIATION /12Z WEDNESDAY THROUGH SUNDAY/...
Mid and high clouds will continue to increase from west to east
this morning as a result of the deep, moist southwesterly flow 
ahead of a cold front. 

Look for generally VFR with some limited IFR/LIFR CIGS/vsbys
across the Lower Susq Valley through 13Z. Winds will remain 
relatively light from the SE through SW.

During the daylight hours today, we'll see building clouds 
throughout the morning with an area of briefly weakening
showers and scattered TSRA over NW in a zone of maximum llvl
moisture advection. 

Afterward, scattered to widespread showers and thunderstorms
developing for the afternoon (with brief MVFR to IFR) as the 
primary axis of deep- layer moisture shifts east across the 
region ahead of a cold front approaching from the northwest. 

Forcing for these storms will mainly be ahead of slow moving 
front, which makes predictability for the timing of these storms
tricky. Most sites will likely see a shower overhead at some 
point today, but due to the cellular based storm mode, timing 
the occurrence at any one location is difficult. Will continue
to employ prob30 groups to highlight the window where 
thunderstorms are possible.

Outlook...

Thu...Lingering showers/and a few PM storms possible across the
southern airspace. 

Some valley fog is possible through about 12Z today, and a 
tempo group has been included to highlight this at sites were 
confidence in fog formation is highest.

Fri...AM fog possible; otherwise VFR. 

Sat...Mainly VFR.

Sun...Mainly VFR, but chance of a shower or storm north late.

Mon...Chance of a shower early, then clearing.

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