“…While tropical variability has been considered as the primary modulator of Atlantic TC activity (e.g., Gray, 1984Gray, , 1990Vimont & Kossin, 2007), there is substantial interest in the potential impact of extratropical atmospheric variability on TC activity, especially the TC tracks and landfall locations (e.g., Ballenzweig, 1959;Elsner, 2003;Murakami et al, 2016). Recent studies highlighted a strong negative correlation between measures of TC activity and equatorward propagating Rossby waves on the seasonal scale (Papin, 2017;Zhang et al, 2017;Zhang & Wang, 2019), although these extratropical waves may also facilitate TC development near the U.S. coast (Bentley et al, 2016;Davis & Bosart, 2004;Galarneau et al, 2015). Recent studies highlighted a strong negative correlation between measures of TC activity and equatorward propagating Rossby waves on the seasonal scale (Papin, 2017;Zhang et al, 2017;Zhang & Wang, 2019), although these extratropical waves may also facilitate TC development near the U.S. coast (Bentley et al, 2016;Davis & Bosart, 2004;Galarneau et al, 2015).…”