Area Forecast Discussion
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000 FXUS61 KPBZ 191806 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 106 PM EST Sun Nov 19 2017 .SYNOPSIS...
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Gusty wind in the wake of a cold front can be expected today along with scattered rain and snow showers. The majority of the work week will be dry outside of a chance of precipitation midweek with seasonal temperatures.
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Second shortwave dropping through the upper trough has allowed for coverage of snow showers to expand across the north. Will keep PoPs as is, with the highest values north of I-80 and in the mountains as saturation in the boundary layer taps into the best snow growth region through this evening. The window for accumulation potential is rather small, but still think 2-3 inches of snow is reasonable - just under advisory levels for the remainder of the period. Temperatures are likely to be at their highest as of the last hour or so, with strengthening cold advection and cloud cover keeping us steady for the rest of the daylight hours. Snow showers will linger tonight but building mid level and surface high will shunt moisture below efficient snow growth, with minimal accumulation expected after midnight. Cloud cover will start to diminish, but wind will remain elevated enough to keep radiative cooling at a minimum.
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&& .SHORT TERM /MONDAY THROUGH WEDNESDAY/... Monday and Tuesday look dry with temperatures rebounding to slightly above seasonal averages as high pressure builds back in over the region. && .LONG TERM /WEDNESDAY NIGHT THROUGH SATURDAY/... A weak wave passing north of the forecast area midweek will return slight chances of precipitation for locations north of I80 on Wednesday. Dry conditions will resume Thurs/Fri before the next system impacts the region next weekend. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/... Scattered to numerous northwest/upslope flow snow showers will continue into the evening hours. Flight conditions will vary from VFR to MVFR at most terminals. Brief IFR will be possible at several as well, although FKL/DUJ have the best chance of seeing such restrictions. Winds will continue to gust as high as 30 knots out of the WNW as well. Both the snow shower coverage and the wind gusts will diminish overnight, with MVFR/low VFR ceilings lingering. Advancing high pressure will lead to rising ceilings and decreased cloud coverage after sunrise, with winds backing to the southwest with time. .Outlook... Restriction potential returns with a Tue cold front and subsequent upper troughing through mid week. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$ is the U.S. government's official web portal to all federal, state and local government web resources and services.