i know the dust from the Sahara reach countries in Europe, like Spain, Portugal, France and Italy. but that is pretty close to Africa. i didn't know it can travel all the way to the Caribbean, crossing the Atlantic Ocean. that is 3000 miles.
so i was surprised to see it in the Google Earth's Daily Planet layer today (June 2nd, 2010)
here is a screen shot with the measurement tool showing 3000 miles. (click the images to view large size)
and here is a closer look