Area Forecast Discussion
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000 FXUS61 KPBZ 221729 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 129 PM EDT Fri Sep 22 2017 .SYNOPSIS... High pressure will maintain warm and dry weather through the middle of next week. && .NEAR TERM /THROUGH TONIGHT/... Very little to discuss as we welcome Autumn`s arrival this afternoon. A lack of airmass change and clearing this afternoon will ensure our temperatures remain summer-like. Clearing again tonight will promote the production of valley fog in what is essentially a persistence forecast. Lows will stay above average. && .SHORT TERM /SATURDAY THROUGH SUNDAY/... Upper-level ridge will build further, while slowly shifting eastward over the region. This will keep the forecast dry and temperatures well-above average through the early part of next week. Highs will regularly push near the 90 degree mark across the lower terrain. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... Dry weather continues through most of the long term. At this point, ensembles not really hinting at much rainfall until late in the period with the passage of a cold front. Temperatures will stay above average until the front passes. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...
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VFR conditions are expected under high pressure, with the exception of valley fog in the hours around sunrise. Overall, think that fog is likely to be more widespread/thicker south of PIT where higher dewpoints may reside. Any fog will burn off by 14Z, with a resumption of VFR conditions. .Outlook... No widespread restrictions are expected with high pressure over the region.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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