Area Forecast Discussion
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000 FXUS61 KPBZ 221751 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 151 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/... A lack of airmass change and clearing this evening will ensure our temperatures remain summer-like. Clearing again tonight will promote the production of valley fog. Lows will stay above average. && .SHORT TERM /SATURDAY THROUGH MONDAY NIGHT/... 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 /TUESDAY THROUGH FRIDAY/... Dry weather continues through most of the long term. Models continue to insist on a pattern shift towards the latter part of next week as a front ushers in a broad trough. Current forecast calls for a fairly dry frontal passage, providing little relief from the recent dry weather. Highs will drop back down toward seasonal averages by the end of next week. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... 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. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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