View Post NBC Affiliates | ShopTalk | Weather Meteorologist Valerie Smock Joins WPXI By Merrill Knox on Nov. 1, 2013 - 10:38 AM Meteorologist Valerie Smock is joining WPXI, Cox Media’s NBC affiliate in Pittsburgh, next month. Smock joins WPXI from AccuWeather, where she has worked since 2010. before that, she worked at stations in Toledo, Youngstown ...