Brief: Tropical Storm Erin is likely to become a hurricane in the next 48 hours, according to the National Hurricane Center on Aug. 12.

The last time a Hurricane Erin occurred was in 2001. The storm became a hurricane on Sept. 9. Erin was off the East Coast near New York on Sept. 11. NASA satellite images of the hurricane show smoke from the World Trade Centers blowing south.

The hatched areas on the National Hurricane Center's tropical outlook map indicate "areas where a tropical cyclone — which could be a tropical depression, tropical storm or hurricane — could develop," said National Hurricane Center Deputy Director Jamie Rhome.