Aviation Forecasts and Information Page - NWS State College PA

.AVIATION /09Z WEDNESDAY THROUGH SUNDAY/...
Recent satellite imagery shows that the stubborn stratus deck
over central PA is beginning to erode from west to east. Valley
fog is quickly forming in areas that have cleared out and the
expectation is that the fog will expand eastward as clouds
continue to clear. BFD, AOO, and UNV appear most likely to see
IFR conditions in fog, though there could be a brief window of
opportunity closer to sunrise for fog to form at IPT if the
clouds clear out fast enough.

The fog will burn off by 14Z, giving way to VFR conditions for
the rest of the day with increasing high clouds and light
southerly winds. Moderate warm advection associated with a
shortwave tracking to our north into Thursday morning will
support light rain developing over the northern half of the
region after 00Z Thursday. As of now, it appears that rain could
make it as far south as UNV. The rain should be pretty light and
cloud bases don't look to get below 5000 feet, so expect VFR
conditions to continue.

Outlook...

Thu...-SHRA possible, mainly over northern PA, with potential
for localized AM mist/fog.

Thu Night - Fri...Cold FROPA with showers along the front. LLWS
possible, especially northern and western TAF sites.

Sat-Sun...VFR favored behind the FROPA, with lower confidence
across southern PA where lingering moisture may bring intervals
of low ceilings (primarily MVFR). AM fog possible.

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