Area Forecast Discussion
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000 FXUS61 KPBZ 160856 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 356 AM EST Tue Jan 16 2018 .SYNOPSIS... Low pressure will bring relatively light snow to the region today followed by bitter cold on Wednesday. Warmer temperatures and dry conditions expected the remainder of the week. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... Snow will continue today as a frontal boundary slow transitions east over the forecast area.Minimal change was made to previously forecast snow totals...with 2 to 3" expected for the majority of the forecast area and locally higher amounts in the ridges. No changes were made to existing winter weather advisories for the ridges where upslope enhancement will result in higher amounts...but elsewhere the longer term duration of light accumulating snow should lessen impacts and treated roads should fare well given the relatively warmer temperatures. Roads and walks untreated or not fully clean from the previous event will not fare so well and likely be slick/problematic. && .SHORT TERM /6 PM THIS EVENING THROUGH THURSDAY/... Snow showers will taper off and cold air will move in behind the front tonight...with single digit overnight lows forecast. Below normal temperatures will continue through Wednesday with northwesterly flow maintaining potential for light snow...primarily along and north of I-80. A warming trend in temperatures will commence on Thursday as ridging builds back in over the forecast area. && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... High pressure looks to be the dominant feature for much of the period with a building southeastern ridge resulting in well above normal temperatures by the weekend. Moist advection around the western flank of the ridge will keep at least chance PoPs in for for the early weekend. By this time, temperatures should be warm enough to support all rain. Models show relatively good agreement with the next frontal system impacting the region next Monday. && .AVIATION /09Z TUESDAY THROUGH SATURDAY/... Widespread MVFR to IFR restrictions in snow can be expected until low pressure pulls a cdfnt acrs the region this afternoon. Conditions will improve during the afternoon and evening as subsidence and dry advection ensue in the wake of the front. .OUTLOOK... Northwest flow may lead to further restrictions Wednesday. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...Winter Weather Advisory until 10 PM EST this evening for MDZ001. OH...None. PA...Winter Weather Advisory until 7 PM EST this evening for PAZ076. WV...Winter Weather Advisory until 7 PM EST this evening for WVZ510- 511. Winter Weather Advisory until 10 PM EST this evening for WVZ512>514. && $$

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