A tornado is a violently turning tube of air suspended from a thick cloud.

VOA: special.2009.06.09

This is especially true in cloud-free areas of the Pacific.

VOA: special.2009.09.29

Macpherson says the ash cloud is not unusual nor is the eruption of the volcano after 200 years of dormancy.

VOA: standard.2010.04.15

However, the law is more than 30 years old and does not cover cloud computing because it didn't exist at the time.

VOA: standard.2010.06.22

Macpherson says there is also no way of knowing whether there could be another eruption that could cause a similar ash cloud.

VOA: standard.2010.04.15

The skies above large parts of Europe were empty for a second day Friday, as air safety authorities warned that the cloud of ash from Iceland's volcano is spreading.

VOA: standard.2010.04.16

"We become afraid to use those services. We don't trust the fact that when we put our data into one of these cloud service providers that it is actually going to be protected."

VOA: standard.2010.06.22

And Flynn says the cloud is spreading. "The southern part of Europe is for the most part clear (OMITTED) but the volcanic ash cloud is anticipated to extend slightly further south and eastward during this night."

VOA: standard.2010.04.16

It shows a man at a typewriter and above his head, taking up more than half of the canvas and appearing in a purple cloud, is frontiersman Daniel Boone, wearing his coonskin cap and carrying his long rifle.

VOA: standard.2010.08.09