volcanos. jen, what's going to happen? >> we got a good practice out of the last eruption. as we're looking at this graphic, this is flight radar 24.com. it shows you and tracks all the planes in the skies. the yellow are the planes out there. you don't see much activity through areas, including scotland as well as northern parts of england. that's because an ash cloud causing some disruption. as we go over to our next graphic here and hopefully we can pull this up. we'll show you the ash cloud as it's moving from iceland. you can see down towards the south and east. anywhere you're seeing yellow and that orange shading, that is actually the ash being reflected back. certainly there is that out there in the atmosphere. now as i take you back over to our weather graphics here, and we talk a little bit more. anywhere in red, we have this advisory for ash, from anywhere from the surface up to about 35,000 feet in the air. now, if you notice it extends for areas including southern