 Hurricane Danielle was the first of four Category 4 hurricanes during the 2010 Atlantic hurricane season . The sixth tropical depression , fourth named storm , second hurricane , and first major hurricane of the season , Danielle developed as a typical Cape Verde @-@ type hurricane from a tropical wave on August 21 . Quickly intensifying , the new tropical depression became a tropical storm on August 22 , and a hurricane on August 23 . Danielle then began to weaken due to increasing wind shear , and became a tropical storm on August 25 . Danielle later weakened into a tropical depression on August 26 , and dissipated