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Area forecast discussion 
National Weather Service Pittsburgh PA
905 PM EDT Thu Oct 27 2016

building high pressure will ensure dry, but cool weather for
Friday. Warmer temperature can be expected for Saturday.


Near term /through Friday/...
no major changes were needed for the late eve update as cold northwest
flow maintains stratus, areas of drizzle, and stratocu in the wake
of the front.

Dry high pressure will eventually clear the sky late on Friday,
so high temperatures were progged about 5 degrees under the
averages given persistent cloud cover and cold, to neutral


Short term /Friday night through Sunday/...
with the progressive upper level pattern, another system is
expected to approach late on Saturday, but ahead of this warm
advection on strong southwest low level flow will push
temperatures 10 to 15 degrees above average Saturday afternoon.
The mid level trough and an associated cold front will cross the
region Sunday. For now have continued high chance pops, as the
available moisture still looks in doubt. Temperatures will cool
back toward average.


Long term /Sunday night through Thursday/...
the upper Ohio Valley will be on the top side off strengthening mid
level ridging into Wednesday, with above average temperatures. The
ridge will retrograde mid week, allowing a frontal system to slide
south of the region Thursday. With timing of this system in
doubt, slight chance pops were included.


Aviation /01z Friday through Tuesday/...
restricted ceilings, including IFR at fkl and duj, will plague
area ports into Friday. Building high pressure and dry advection
will support improvement as Friday progresses.

Outlook /Friday night through Tuesday/...
general restrictions are again possible with a Sunday cold front.


Pbz watches/warnings/advisories...



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