Abstract
Strongly opposing circulations for two extreme winter months over the Northern Hemisphere are associated with latitudinal bands of opposing temperature and precipitation anomalies extending through North, Central, and South America. These distributions may be produced by regional variations in the position of the Hadley cell associated with strong planetary wave displacements in temperate latitudes. Abstract Strongly opposing circulations for two extreme winter months over the Northern Hemisphere are associated with latitudinal bands of opposing temperature and precipitation anomalies extending through North, Central, and South America. These distributions may be produced by regional variations in the position of the Hadley cell associated with strong planetary wave displacements in temperate latitudes.