Area Forecast Discussion
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000 FXUS61 KPBZ 260121 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 921 PM EDT MON JUL 25 2016 .SYNOPSIS...
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Following this evenings rain, warm and dry weather can be expected until the approach of low pressure on Thursday.
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&& .NEAR TERM /THROUGH TUESDAY/...
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The late eve update featured downward adjustments to POPs as the convection-supporting shortwave has shifted east of the Upper Ohio Region, with residual showers and storms over southeastern counties waning with loss of warmth and instability. This downward trend will continue as lower dewpoints seep over the region tonight. Have persisted with previous the forecast which assumed sufficient southward frontal progress to preclude PoPs over southern zones on Tuesday, with exception for the southernmost areas, i.e. those adjacent to Tucker County, WV.
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&& .SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY NIGHT/... 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 /FRIDAY THROUGH MONDAY/... 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 /02Z TUESDAY THROUGH SATURDAY/... A weak dry front will slide across the region this evening and diminish convection. General VFR will then prevail, with exception for peridawn fog, some of which may be IFR especially where heavy rainfall occurred. .OUTLOOK /TUESDAY NIGHT THROUGH SATURDAY/... The next chance for restrictions will come with Thursday night low pressure. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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