Area Forecast Discussion
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647 FXUS61 KPBZ 200053 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 853 PM EDT Sat Aug 19 2017 .SYNOPSIS... Thunderstorms will accompany the passage of a cold front this evening. && .NEAR TERM /UNTIL 6 AM SUNDAY MORNING/... Last of the showers and thunderstorms will drop south and/or dissipate over the next couple of hours with the loss of daytime heating and the continued progress of the cold front. Mainly clear skies are anticipated overnight as a drier column sets up. With the rain today, plus the clear skies and light wind, areas of fog are likely to develop overnight though sunrise. Minimum temperatures will be near or just below climatology. && .SHORT TERM /6 AM SUNDAY MORNING THROUGH TUESDAY/... Building high pressure in the wake of the aforementioned system will result in a dry and seasonable Sunday with slightly lower dewpoints/humidity. Warm, moist advection with flat ridging in advance of a midwestern shortwave as per the latest model solutions indicate increased humidity with a rapid temperature moderation above the averages for Monday. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... The aforementioned midwest trough/associated front are likely to provide the next precip chance by Tuesday. Eastern CONUS troughing is then forecast to support temperatures a few degrees under the averages for the remainder of the week. && .AVIATION /01Z SUNDAY THROUGH THURSDAY/... Thunderstorms will end early this evening as a cold front completes its passage. Will handle with VCTS early on near MGW. VFR conditions will follow in the wake of the thunderstorms, but given the rainfall today, areas of pre-dawn fog are expected to develop. IFR visibilities are expected for at least a short period at most terminals. Fog will lift by mid-morning Sunday, with VFR conditions returning thereafter. .Outlook... Widespread restriction potential returns with a late Tue/early Wed cold front. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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