Area Forecast Discussion
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000 FXUS61 KPBZ 192309 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 709 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/...
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Quick update to modify PoPs based on radar trends, and to drop the remainder of the severe thunderstorm watch. Some convection will remain possible mainly south of the Mason-Dixon line for a couple more hours, until daytime heating decreases. Dry advection and subsidence in the wake of the front will support a quiet and comfortable night. Expect overnight lows near/a couple degrees under the seasonal averages.
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&& .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 /23Z SATURDAY THROUGH THURSDAY/...
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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.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$ is the U.S. government's official web portal to all federal, state and local government web resources and services.