Aviation Forecasts and Information Page - NWS State College PA

.AVIATION /08Z WEDNESDAY THROUGH SUNDAY/...
Isolated -SHRA will continue across the southern tier tonight 
into early Wednesday morning. The LAMP does have a few to 
several hours of MVFR cigs/vsby at JST/AOO/UNV later tonight 
into the predawn hours Wed, but obs seem to be trending in a 
drier direction, so probability for MVFR conds is only in the 
30-50 pct range. 

Otherwise, VFR will prevail across much of central Pennsylvania
through Wednesday night given the drier air in place (ceiling 
restrictions unlikely) + E/NE flow remaining at 5-10 kts 
overnight (fog unlikely). Daytime winds will be from the E to NE
with gusts up to 25 kts, especially in the Lower Susq Valley.

One exception to VFR conditions during the current TAF period
may be intermittent MVFR ceilings (10-20% chance) across the 
Laurels (KJST/KAOO) later in the day, mainly between 18-24Z, due
to terrain-induced cumulus/stratocumulus within easterly flow. 
As the boundary layer decouples during the evening, these clouds
will decrease in coverage, allowing for a return to VFR. 

The other exception looks to be across the Lower Susquehanna 
Valley (KMDT/KLNS) after roughly 06Z Thursday, where NE flow may
bring in a shallow moisture layer at around 925 mb and result 
in MVFR ceilings. Nevertheless, VFR is still favored through 
the night across those sites, with likelihood of MVFR being
around 10%.

Outlook...

Thu-Sun...VFR favored as a developing coastal low looks to 
bring subsidence overhead, though -RA and lower cloud ceilings 
associated with this system may reach our eastern terminals this
weekend (20 pct chc).

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