Area Forecast Discussion
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335 FXUS61 KPBZ 081827 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 127 PM EST Fri Dec 8 2017 .SYNOPSIS... Cold weather continues. Snow showers are likely with a reinforcing cold front Saturday night. && .NEAR TERM /THROUGH TONIGHT/...
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High pressure will result in dry but cool conditions overnight with cloud coverage associated with a system tracking up the coast. Temperatures will remain well below normal.
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&& .SHORT TERM /SATURDAY THROUGH SUNDAY/...
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There is an outside chance of a few light snow showers developing early in the AM over the higher terrain of Garrett/Tucker/Preston counties associated with low pressure moving up the coast. Overall model consensus keeps precipitation east of the forecast area. Accumulations would be minimal. Saturday will dry with temperatures recovering slightly by around 5 degrees...but still below normal. A shortwave will quickly cross Saturday night and result in snow showers developing across the region. The trough axis will be east of the area by Sunday morning , however, cold air advection behind the trough will keep snow showers going, mainly over the I-80 corridor and ridge counties. These locations will see the bulk of the snow accumulations. Snow showers will largely end by Sunday afternoon as inversions lower and drier air moves in. Temperatures are expected to remain 5 to 10 degrees below average.
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&& .LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/... A longwave trough is progged to persist across the Eastern CONUS through the period, as shortwaves rotate through the trough and maintain periodic snow shower chances. Temperatures will average 10 to 15 degrees below seasonal levels on most days. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...
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Outside of some high clouds from a passing low pressure to our south, VFR conditions will prevail through the period. SW wind is expected, with some gusts to 15kts until mixing diminishes this eve. .Outlook... The next chance for widespread restrictions is Saturday evening/night, as a shortwave trough approaches and increases chances for snow.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

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