Mountain waves such as these (forming downwind of the Appalachians, & also seen in #GOES16 Water Vapor images) are a signature of potential turbulence - in this case, there were pilot reports of moderate to severe turbulence in the vicinity of these waves: https://t.co/P0YyJubo5S pic.twitter.com/4rZa6SftnH

— Scott Bachmeier (@CIMSS_Satellite) October 17, 2019