Area Forecast Discussion
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000 FXUS61 KPBZ 250519 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 119 AM EDT Tue Jul 25 2017 .SYNOPSIS...
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Dry conditions and near-normal temperatures can be expected until showers and thunderstorms return Thursday through Friday morning. Dry conditions will then resume and persist through the weekend.
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&& .NEAR TERM /THROUGH TODAY/...
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Overnight stratus north of Interstate 70 will mitigate falling temperatures and fog formation overnight. South of I-70 clearing may result in some valley fog as winds relax toward morning. Clouds will clear during the day under building high pressure and subsidence with mostly sunny skies across the region by mid-afternoon.
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&& .SHORT TERM /TONIGHT THROUGH WEDNESDAY NIGHT/...
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Ridging will continue to build through midweek with a drying boundary layer and overall subsidence supporting a dry, seasonable forecast through Wednesday night.
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&& .LONG TERM /THURSDAY THROUGH MONDAY/...
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Models show decent continuity in the extended with an upper level trough and associated front crossing the forecast area Thursday through Friday morning. Showers and storms along the boundary are likely. Overall model consensus shows troughing east of the forecast area by Friday evening...and with drier, more stable air moving in behind....a dry and sunny weekend is most probable at this time.
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&& .AVIATION /06Z TUESDAY THROUGH SATURDAY/... Relatively cool air encroaching aloft from the north will help deteriorate ceilings to IFR by Tuesday morning as low level moisture lingers across the region. These restrictions should be confined to the northern most ports and lower KPIT`s condition to MVFR. Brief MVFR visibility could occur at KMGW and ZZV. Expect conditions to be VFR by Tuesday afternoon as high pressure builds. .OUTLOOK... VFR is expected to prevail through mid-week as high pressure builds maintains over the region. Moisture will return Thu ahead of a sewd- moving trough. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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