A rare episode of minor circulation embedded in the northern hemispheric zonal mean hadley cell

A rare episode of minor circulation embedded in the Hadley circulation (HC) and processes responsible for its formation is discussed. Using 34 years (1979–2012) of HC climatology derived from reanalysis datasets, a minor circulation centered on ∼35°N and embedded within the northern hemispheric zonal mean HC is observed during the month of July 1993. A longitudinally resolved vertical velocity observations centered on 35°N latitudinal belt revealed that there is an anomalous upwelling over the North American sector possibly associated with “Great Floods of 1993” thus emphasizing the prominence of a regional feature and its impact on the zonally averaged circulation.