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PITTSBURGH (KDKA) – A Winter Weather Advisory has been issued by the National Weather Service in Pittsburgh as heavy snow moves through the region.

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Many parts of western Pennsylvania are now under the Winter Weather Advisory that will be in effect until 9 a.m. Friday morning.

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According to officials, up to three inches of snow is expected overnight Thursday and into the morning commute Friday.

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The NWS posted to Twitter saying that the initial advisory including the ridges has been expanded to include portions of northern West Virginia, southeast Ohio and southwest Pennsylvania.

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Difficult travel conditions and slippery roads are expected. Travelers should allow extra time during their morning commute.

Another band of snow is expected to enter the Pittsburgh region Sunday evening into Monday morning. The first weekend of March could bring a large-scale winter storm.

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