The National Weather Service in Pittsburgh has issued a winter weather advisory for most of western Pennsylvania, including Allegheny County, from 10 a.m. Friday to 1 a.m. Saturday.

Forecasters say 4 to 6 inches of snow is possible.

Here is a more detailed look at the forecast.

• Friday: Snow, mainly after noon. High near 20. East wind 7 to 9 mph becoming south in the afternoon. Chance of precipitation is 90 percent. New snow accumulation of 1 to 3 inches possible.
• Friday Night: Snow, mainly before 1 a.m. Low around 16. West wind 5 to 7 mph. Chance of precipitation is 100 percent. New snow accumulation of 1 to 3 inches possible.
• Saturday: A chance of snow. Partly sunny, with a high near 26. Light west wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 50 percent.

As the snow starts to fall, share your observations in the comments section below. Also, upload any snow photos you take to this story!

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