Area Forecast Discussion
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000 FXUS61 KPBZ 231326 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 926 AM EDT Sat Sep 23 2017 .SYNOPSIS... High pressure will maintain warm and dry weather into the middle of next week. && .NEAR TERM /THROUGH TONIGHT/...
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The first full day of Autumn will be Summer-like with highs in the mid 80s to near 90. Stacked high pressure will provide the subsidence to keep a relatively cloud-free sky. Clear skies will carry into the overnight hours tonight. This will allow for a large diurnal temperature range, but lows are still expected to remain higher than seasonal averages.
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&& .SHORT TERM /SUNDAY THROUGH MONDAY/... Upper-level ridge will build further, while slowly shifting eastward over the region. This will keep the forecast dry and warm through the early part of next week. Highs will regularly push near the 90 degree mark across the lower terrain. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... Models continue to insist on a pattern shift for the latter half of next week. Although a generally dry frontal passage is indicated, warm weather will be interrupted as high temperature about 15 degrees above seasonal levels is moderated back toward the averages. && .AVIATION /14Z SATURDAY THROUGH WEDNESDAY/... After patchy fog lifts early this morning, high pressure will maintain light wind and VFR. .Outlook... General restrictions are not expected until the approach of a cold front during the middle of next week. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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