Area Forecast Discussion
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000 FXUS61 KPBZ 221732 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 1232 PM EST Wed Nov 22 2017 .SYNOPSIS...
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Dry weather can then be expected until the approach of the next front on Saturday.
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&& .NEAR TERM /THROUGH TONIGHT/...
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A few light snow showers or drizzle remain, but the trend will be towards drying this evening. Current regional satellite imagery shows expansive cloud cover across the area, although some cracks are starting to form. This remnant moisture left in the wake of last night`s cold front will take some time to erode. The forecast will hold clouds through the late evening until low- level flow can sufficiently back and bring drier air in from the west. Temperatures will likely hold steady through early evening, before beginning their march downward. As mentioned above, appreciable clearing is expected to be rather slow tonight. This, and dewpoint values currently just a few degrees away from their expected low values tonight, will provide a floor for tonight`s low temperatures. Values are still expected to be about 10 degrees below average.
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&& .SHORT TERM /THURSDAY THROUGH SATURDAY/... Surface high pressure under broad upper troughing will ensure a dry, but cool conditions through the end of the week. && .LONG TERM /SATURDAY NIGHT THROUGH TUESDAY/... Ensemble forecasts are showing the next cold front dropping through the area on Saturday with fairly weak support for precipitation, followed by the next trough setting up over the Eastern CONUS. Cold weather is thus projected to start the new week. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
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The last few isolated rain/snow showers behind the front will end during the afternoon with little impact to aviation. Ceilings will begin as a mix of MVFR and low VFR, with an improvement to VFR areawide by evening as high pressure builds in, with favorable flight conditions persisting through Thanksgiving. Northwest winds from 10 to 15 knots initially will fade with the daylight, becoming light tonight. .Outlook... The next chance for restrictions is forecast with a Saturday cold front.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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