Reannan
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Here is something I found interesting and you guys can sleuth it while you are stuck inside. During the recent snow storm over Alabama, NASA and the University of Alabama launched some weather balloons and discovered some interesting things during that "thunder snow" event. I don't think I ever remember hearing about so much "thunder snow" before. Anyways, they found something called "gravity waves" that seemed to impact the heavy snow fall. Here is a snippet from the article, and a link to it:
"Knupp said 11 gravity waves rippled across Huntsville and Madison County that night. They cause rapid cooling in clouds, and that might have triggered the heavy snow. One wave passed over moments before a National Weather Service employee reported an inch of snow fall in 20 minutes, UAH said.
The team did find the storm waves they were looking for. "At one point, between 9 p.m. and midnight, the Huntsville airport reported four inches of snowfall in one hour," Knupp said. "That might happen in the Midwest, but not often. It will be very rare down here. I won't be surprised if that was caused by the interaction of one of these bands with a gravity wave."
http://blog.al.com/space-news/2011/01/huntsvilles_9_inch_january_sno.html
"Knupp said 11 gravity waves rippled across Huntsville and Madison County that night. They cause rapid cooling in clouds, and that might have triggered the heavy snow. One wave passed over moments before a National Weather Service employee reported an inch of snow fall in 20 minutes, UAH said.
The team did find the storm waves they were looking for. "At one point, between 9 p.m. and midnight, the Huntsville airport reported four inches of snowfall in one hour," Knupp said. "That might happen in the Midwest, but not often. It will be very rare down here. I won't be surprised if that was caused by the interaction of one of these bands with a gravity wave."
http://blog.al.com/space-news/2011/01/huntsvilles_9_inch_january_sno.html