Area Forecast Discussion
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000 FXUS61 KPBZ 160942 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 542 AM EDT Mon Oct 16 2017 .SYNOPSIS... After a cool start to the week, building high pressure will result in dry and gradually warming weather through the rest of the week. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... An approaching upper trough, along with lake enhancement from cool NW flow off the Great Lakes should result in clouds and isolated-scattered showers for parts of the area this morning. Adjusted POPs for these showers for the pre dawn update. The axis of the trough is progged to begin to shift E of the area during the afternoon. This along with diminishing moisture should end the showers. Temperatures are expected to average 5 to 10 degrees below seasonal levels in cold advection. && .SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY NIGHT/... Surface high pressure is progged to build across much of the Ern CONUS through the period, resulting in dry weather. As decoupling occurs tonight, temperatures are expected to support areas of frost across the region. A frost advisory may be needed. Will include a Hazardous Weather Outlook mention for areas where the growing season has not already ended. After a cool start Tuesday morning, temperatures are expected to return to near seasonal levels. && .LONG TERM /THURSDAY THROUGH SUNDAY/... Broad high pressure over much of the Ern CONUS will maintain dry and gradually warming weather through the period. && .AVIATION /09Z MONDAY THROUGH FRIDAY/... Low end VFR, to occasional MVFR stratocu, will persist with an approaching upper trough and in cool NW flow off the Great Lakes. Building high pressure will diminish wind and return VFR as Monday aftn progresses. .Outlook... No widespread restrictions are expected under high pressure. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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