Aviation Forecasts and Information Page - NWS State College PA

.AVIATION /08Z FRIDAY THROUGH TUESDAY/...
Low cigs (anywhere from IFR to VLIFR) early today will occur in
advance and likely for a few hours in the wake of a warm front
moving through the Central Mtns and Susq Valley through about
daybreak. Upward vertical motion over this boundary will bring a
few, brief periods of moderate to heavy rain showers to roughly
the NE quadrant of the state through 12Z. Stronger 40+ DBZ 
cores of radar reflectivity should remain below the -10C level
for the most part, so the prob of thunder is low early today and
much of the wording for TSRA through the mid-morning was
removed. 

LLWS is likely to be widespread across the CWA prior to the Cold
Frontal passage this morning/through mid afternoon as we see the
base of 35-45 kt south to southwesterly winds down to between
1000-1500 ft AGL. 

A break in the precipitation will likely occur during the late 
morning for most airfields between the warm and the cold front, 
but ceilings will likely stay at or near IFR conditions 
throughout the day. Winds will likely be most gusty over the 
western terminals of JST and AOO with guts of 35kts possible. 

During the 15-17Z period today, the cold front will arrive over
northwestern PA, bringing a growing line of heavy showers and 
thunderstorms that will gradually strengthen and progress 
southeastward - crossing the Central Mtns during the mid 
afternoon hours and Mid-Lower Susq Valley respectively, late 
this afternoon/early this evening.

Brief wind gusts over 40 kts from the WSW-W, vsbys down to 
1-2SM and CIGS under 1 KFT AGL are likely as the cold front and
line of heaviest SHRA/TSRA moves through.


Outlook...

Late today and Sat...Gusty NW winds of 30-35 KTS behind front 
late today into early Sat. Lingering SHRA across N/W PA with 
some -SHSN mixing in early Saturday morning. Restrictions likely
at airfields that mix over to SHSN. Precipitation tapers off by
sunrise, VFR prevails with gusty winds. 

Sun-Tue...AM fog possible; otherwise, VFR conditions prevail.

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