Area Forecast Discussion
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000 FXUS61 KPBZ 122336 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 736 PM EDT Sat Aug 12 2017 .SYNOPSIS... Mainly dry weather is expected under high pressure through the first half of the new week, though a weak disturbance could return low shower chances early in the week south of I 68. && .NEAR TERM /THROUGH SUNDAY/... Isolated showers should exit WV/MD early this evening with an exiting cold front. Dry weather is then expected through Sunday under building surface high pressure. Areas of fog are possible overnight and early Sunday morning as winds diminish and temperatures fall/saturation occurs. Temperatures are expected to average around 5 degrees below seasonal levels. && .SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/... Any chance of rain during the beginning of the work week will be contained to locations south and east of Pittsburgh, primarily in the highest elevations. Stuck with only shower mention on Monday and added a chance for thunder on Tuesday. Temperatures will slowly rise, allowing temperatures to climb back above climatology. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... Conditions are expected to remain dry for Wednesday, but an unsettled pattern will develop for the rest of the extended forecast. ECMWF and GFS still show general agreement of a system crossing the eastern half of the United States, but continue to differ in the specifics. The best chance for rain currently appears to be Thursday night. Wednesday will most likely be the warmest day of the week, then daytime highs will be slightly cooler through Saturday. && .AVIATION /00Z SUNDAY THROUGH THURSDAY/...
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Precipitation has moved off to the east and cloud cover has generally dissipated. Still expecting a decent threat of fog overnight into Sunday morning, and have at least temporary IFR conditions at all terminals. VFR conditions will return once fog lifts by late Sunday morning. After winds diminish over the next hour or two, they will remain generally light through tomorrow. .OUTLOOK... Surface high pressure is forecast to support general VFR through early next week with exceptions for peri-dawn fog.
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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.