AN AREA OF HEAVIER SNOW SHOWERS WILL AFFECT WASHINGTON...SOUTHWESTERN ALLEGHENY...SOUTHWESTERN WESTMORELAND AND FAYETTE COUNTIES... At 1005 AM EST, an area of heavier snow showers was located near Wolfdale, or near Avella, moving east at 15 mph. Locations impacted include... Bethel Park, McMurray, Washington, Uniontown, Canonsburg, Connellsville, Avella, Gastonville, Upper St. Clair, South Park Township, Cecil-Bishop, Monessen, California, Donora, Monongahela, Charleroi, Wolfdale, McGovern, Bentleyville, and Brownsville. This includes the following highways... Interstate 70 in Pennsylvania between mile markers 13 and 46. Interstate 79 in Pennsylvania between mile markers 29 and 52. Use extra caution if you must travel into or through this intense snow shower. Rapid changes in visibility and potentially slick roads are likely to lead to accidents. Consider delaying travel until the squall passes your location.