Area Forecast Discussion
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000 FXUS61 KPBZ 131216 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 816 AM EDT Fri Oct 13 2017 .SYNOPSIS... Building high pressure should maintain mainly dry weather through Saturday. A cold front will return shower chances for Sunday. && .NEAR TERM /UNTIL 6 PM THIS EVENING/...
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Made minimal changes to sky grids with dawn update. Previous...Mainly dry weather is expected today under shortwave ridging, though areas of status and stratocu are expected to persist with moisture below a temperature inversion. SE upslope flow and a moist boundary layer should maintain fog and drizzle across the higher terrain of WV and MD. Temperatures are expected to average 5 to 10 degrees above seasonal levels.
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&& .SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY NIGHT/... Shortwave ridging should maintain dry weather through Saturday night. Veering surface winds to the S-SW should also result in clearing skies. The ridge is progged to slide E by Sunday as a shortwave trough advances out of the Midwest. This trough is expected to drive its associated cold front across the region Sunday, with showers expected. Left out thunder with little if any instability progged. The front should quickly exit Sunday night. Temperatures should continue to run 10 to 15 degrees above average until FROPA returns seasonally cool temperatures Sunday night. && .LONG TERM /MONDAY THROUGH THURSDAY/... Another trough is progged for a Monday approach and passage. Scattered showers are possible especially N of PIT with the trough and cool NW flow. Surface high pressure should maintain dry weather for the rest of the week. After below average temperatures to start the week, readings should gradually warm to above average levels by late week. && .AVIATION /12Z FRIDAY THROUGH TUESDAY/...
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Easterly downslope flow should gradually turn more southeasterly over the next 6-12 hours. This will allow for VFR conditions to continue for the most part away from DUJ/FKL, while even there, as the wind turns more southerly, the stratus should gradually shunt off to the north. Fries .Outlook... The next chance for widespread restrictions is expected with a Sunday cold front.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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