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More than a week s worth of obstruction. airlines complained. they want to give airlines a break in these extraordinary situations. andrew. now, nina, unlike regular dust, volcanic ash is much, much minor. it can affect nozzles and instru anyonation and obstruct joints making things like flaps and tail movement very, very difficult. now, jet propulsion is the key here. it s so hot it can melt the ash that goes through the intake and through the blades there. it builds up in the back of the engine out here where it starts cooling and clogging the engine with what basically has become molten glass. what that means obviously is the engines suffer a drastic drop in performance, which is the key too why there s so many concernser safety. no planes have ever gone down as ....
storm. our meteorologist jen delgado joins us from the cnn weather center. jen, how is it looking now? we still have watches and warnings across parts of the midwest. of course, we talked about the stormed that happened earlier in the week but according to the national weather service it looks like based on doppler imagery we look like a possible tornado touched down in arkansas. anywhere we re seeing in red we still have a tornado watch in effect. that s for parts of arkansas and missouri. if i take you over to this, we have a report that one person died. it s a rural town, but based on the imagery, the national weather service has told cnn it looks like this area may have suffered widespread damage, the tornado roughly one mile wide is what they re reporting. of course, we have to wait until tomorrow before the national weather service goes back out and surveys the damage to find out whether or not it was a tornado that touched down. i ll tell you this. it looks lik ....