Meteorologists can get time-critical help in spotting dangerous cloud formations using artificial intelligence (AI), according to scientists at Penn State and AccuWeather Inc. The team used a "machine learning" program running on XSEDE supercomputers to recognize a typical cloud formation known as comma-shaped clouds in satellite images. Their results detected up to 99 percent of the comma-shaped clouds and 64 percent of ensuing storms in 2011 and 2012 satellite images over the U.S. Their hope is to develop an accurate early warning system so that storm warnings can be issued more quickly than possible today.