it reminded me of a solar eclipse. it reminded me of pictures, completely dark. the ash kept fall like heavy rain. got in our hair, your eyes. you had to wear those masks. you don't know the health effects of continuous ash that falls on the ground. you had to have the mask. it was like being in a funhouse. that's the best way to describe it to you. >> gary tuchman on the ground, thanks very much. keep wearing that mask. take a look at the developments with chad my recollection. how big is this thing, where is it headed? >> this is a 15,000 high ash cloud. the first eruption or explosion was 40,000 feed high. so that ash actually got into the jet stream and blew around in different directions. this lower level, even though it's three miles, we'll call this lower level ash, will be picked up by lower level winds and surface winds blowing toward the uk. even though other countries are opening air space, so to speak, the air space that they're opening is above 35,000 feet. because that ash that was very