Oceanographic and atmospheric data is used to study the properties and evolution of an eddy in the Balearic Sea. During the period of observation, this eddy elongates and splits. The unusually dense set of observations from satellites, drifters, and ship-mounted instruments provide insight into this splitting process. In particular, the contribution from the wind is assessed. These mechanisms are known to impact the vertical exchanges of oxygen, carbon dioxide, nutrients, and pollutants.