From NOAA Visualizations on YouTube: The 2011 Atlantic hurricane season officially ends on Nov. 30 and produced a total of 19 tropical storms of which seven became hurricanes, including three major hurricanes. This level of activity matched NOAA’s predictions and continues the trend of active hurricane seasons that began in 1995. From Arlene to . . . → Read More: The 2011 Hurricane Season in 4.5 minutes