Irene

Full Disk Image of Earth Captured August 26, 2011, originally uploaded by NASA Goddard Photo and Video.

NASA / NOAA GOES-13 satellite image showing earth on August 26, 2011 at 14:45 UTC (10:45 a.m. EDT). Hurricane Irene can been seen on the U.S. East Coast.

Irene Almost 1/3 the Size of East Coast. Irene has become a major hurricane, and NASA satellite data shows its diameter is now about 510 miles -- roughly 1/3 the length of the U.S. Atlantic coastline. Hurricane watches are in effect for much of the East Coast.