Scientific Forecaster Discussion
000 FXUS61 KPBZ 200924 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 524 AM EDT Sun Aug 20 2017 .SYNOPSIS... After areas of dense fog this morning, sunny skies and comfortable conditions are expected for the rest of the day. Dry again Monday, as temperatures rise above normal. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... Issued a dense fog advisory for a large portion of the area through 10am. The area is generally counties which dealt with the strong thunderstorms Saturday afternoon. Following the dissipation of the fog, building high pressure will result in a dry day with seasonable temperatures. && .SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY/... Warm, moist advection, with flat ridging, in advance of a midwestern shortwave, as per the latest model solutions, indicate increased humidity with a rapid temperature moderation above the averages for Monday. Next front is expected to drive southward through the area Tuesday afternoon and evening. This will be the next chance for widespread shower and storm activity. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... Eastern CONUS troughing is then forecast to support temperatures a few degrees under the averages for the remainder of the week along with dry weather. && .AVIATION /10Z SUNDAY THROUGH THURSDAY/... IFR/LIFR conditions in fog are expected to continue for most ports early this morning with low level moisture in place from recent rain. Mixing should dissipate the fog by mid morning, with VFR then expected for the rest of the TAF period under high pressure. .Outlook... Widespread restriction potential returns with a late Tue/early Wed cold front. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...Dense Fog Advisory until 10 AM EDT this morning for OHZ039>041- 048>050-057>059-068-069. PA...Dense Fog Advisory until 10 AM EDT this morning for PAZ013>016- 020>023-029-073-074. WV...Dense Fog Advisory until 10 AM EDT this morning for WVZ001>004.