Area Forecast Discussion
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000 FXUS61 KPBZ 261601 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 1201 PM EDT TUE JUL 26 2016 .SYNOPSIS... Warm and dry weather can be expected until the approach of low pressure on Thursday. && .NEAR TERM /THROUGH TONIGHT/...
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The surface boundary will slowly drag southward, bringing relatively cooler dew point temperatures across the area today. The boundary is expected to stall near the PA/WV border while a weak shortwave shifts across the southern CWA to help induce weak convection. Thus, slight to chance pops remain across the southern most zones where relatively greater instabilty develops. Have used the model blend solution to acquire temperatures and dew points since latest models differ on location of the surface boundary. Temperatures will be above normal, but much less humid conditions are expected than previous several days.
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&& .SHORT TERM /WEDNESDAY THROUGH THURSDAY/... Zonal flow/flat ridging should maintain dry, but continued warm weather through Wednesday. Thereafter, POPs will be on the increase with the approach of low pressure, timing of which remains questionable on Thursday. && .LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/... A series of shortwaves and development of a broad, but shallow trough over the Eastern CONUS is forecast to support periodic rain chances and seasonal temperatures through the weekend. && .AVIATION /16Z TUESDAY THROUGH SATURDAY/...
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VFR conditions are expected through this evening as high pressure builds in from north of I 70. A stationary front south of I 70 could result in isolated to scattered showers or thunderstorms, but with limited coverage expected only mentioned VCSH at MGW. Patchy MVFR fog is again possible late tonight. .OUTLOOK /WEDNESDAY THROUGH SATURDAY/... Low pressure should return periodic restrictions late Thursday though Saturday.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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