Area Forecast Discussion
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344 FXUS61 KPBZ 280931 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 531 AM EDT SAT MAY 28 2016 .SYNOPSIS... Warm temperatures with periodic shower and thunderstorm chances are expected through the weekend. High pressure should result in dry weather for Memorial Day. && .NEAR TERM /UNTIL 6 PM THIS EVENING/...
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Minor adjustments made to hourly grids based on current conditions for the near dawn update. Previous discussion-Ridging is expected to remain centered off the mid Atlantic coast today. A few showers and thunderstorms are possible this afternoon as instability increases and convective temperatures are reached, though a lack of shortwave support and proximity to the ridge should help limit coverage to isolated for most areas. Temperatures should continue to average 10 to 15 degrees above seasonal levels.
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&& .SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY/... Any isolated showers/storms should quickly dissipate this evening as the atmosphere stabilizes. A trough advancing out of the midwest should approach the region Sunday as the ridge shifts east. Increasing moisture in southerly flow should bring better coverage of showers and thunderstorms by Sunday afternoon and evening. These should taper off overnight after the passage of the trough. Building surface high pressure should bring mainly dry weather for Memorial Day and Tuesday. Temperatures are expected to average around 10 degrees above seasonal levels. && .LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/... High pressure across the eastern United States should allow for dry weather Wednesday. An upper level trough and an associated cold front will approach and cross the region Thursday and Friday with increasing showers and thunderstorms. Above normal temperatures mid week will begin to trend toward the seasonal average late week. && .AVIATION /10Z SATURDAY THROUGH WEDNESDAY/... VFR at all ports through the taf period. A ridge of high pressure will keep thunderstorms isolated at best with no mention in tafs. Winds will be light from the south. .OUTLOOK /SATURDAY NIGHT THROUGH WEDNESDAY/... The next chance for more widespread restrictions will be ahead of a weak front sunday into monday. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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