.AVIATION /07Z TUESDAY THROUGH SATURDAY/...
Scattered rain/snow showers continue to move across the 
Allegheny Plateau and Central Mountains as a shortwave trough 
crosses the Great Lakes. VFR prevails at most terminals with the
exception of KBFD and KJST, where lake-enhanced moisture 
downwind of the Great Lakes (KBFD) and upslope WNW flow (KJST) 
are contributing to lower ceilings, with temporary IFR being 
observed in the heavier showers. 

Winds will increase west to east through 12Z as the shortwave 
passes to our north and east, bringing northwesterly winds of 
15-20 kts gusting to around 25 kts regionwide. Rain/snow shower 
coverage will gradually diminish through 18Z as a high pressure 
moves into the Northeast, accompanied by a drier air mass with 
PWATs around 1.5 SD below climo. For KBFD, recent mesoscale 
model guidance has been depicting an 850 mb vorticity maximum 
rounding the base of the shortwave trough later this morning 
(12Z-14Z), with a loosely organized area of snow showers being 
associated with this feature. For this reason, a PROB30 for 
-SHSN with visibility restrictions to at least MVFR was added at
 KBFD for that timeframe. 

VFR is very likely (80% chance) across all terminals through 
06Z as the shortwave moves off the coast of New England. After 
06Z, the LAMP is signaling at a low-confidence chance (10-20%) 
of visibility restrictions as clearing skies and diminishing 
winds could provide favorable conditions for radiational fog, 
with the signal being primarily for KBFD given its proximity to 
the high pressure center overnight. No mentions of reduced 
visibilities were written into the TAF given the low 
probabilities, but this will be monitored in future TAF
packages.

Outlook...

Wed-Thu...VFR.

Fri...Chance of rain showers especially in the western 
airspace.

Sat...Restrictions poss early N/W, then trending VFR.

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