Area Forecast Discussion
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000 FXUS61 KPBZ 280520 AAC AFDPBZ Area Forecast Discussion...UPDATED National Weather Service Pittsburgh PA 120 AM EDT Fri Oct 28 2016 .SYNOPSIS... Building high pressure will ensure dry, but cool weather today. Warmer temperatures on Saturday. && .NEAR TERM /THROUGH TODAY/... Only some minor changes to the overnight period. Removed Pops as any precipitation falling is very light and likely just sprinkles or drizzle. Also increased cloud cover across the south, as the stratocu deck has covered the entire area. Temperatures have been updated with a blend of hires guidance. High pressure and warm advection will decrease cloud cover today, allowing temperatures to warm just a bit, but still remain below seasonal averages. && .SHORT TERM /TONIGHT THROUGH SUNDAY/... Upper level flow will become zonal on Saturday, but we will still see an influx of warmer air, as the lower and mid-level flow turns to the southwest. With a lack of a strong push from the upper levels, the next system will struggle to make much southward progression late Saturday. Decreased the southward intrusion of PoPs late Saturday and Saturday night. With the aforementioned warm air advection, Saturdays highs will be close to 10 degrees above normal. Surface front will finally begin to push southward late Saturday night and Sunday as the main shortwave crosses the Great Lakes and eventually the Upper Ohio Valley. Showers will spread over the entire region Sunday, with the surface boundary reaching the Mason-Dixon line by afternoon. Upper level support remains weak, so would think that shower activity would be scattered. With clouds and rain, temperatures on Sunday will return to near normal. && .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 /05Z FRIDAY THROUGH TUESDAY/... Ceilings should remains rather unchanged through the night at most sites as cold advection ensues overhead and stratocumulus layer with occasional wind gusts persists. This will mix out by early afternoon at most sites on Friday with VFR conditions returning to all sites by late afternoon. Fries .OUTLOOK /FRIDAY NIGHT THROUGH TUESDAY/... General restrictions are again possible with a Sunday cold front. && .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.