When large, storm-like blips flashed across radar in Southern Illinois and Western Kentucky, the National Weather Service was stunned – because it wasn’t raining a drop. All kinds of guesses flared up on social media: a flock of birds; aliens; residue the government uses to control the weather, etc. But a tweet from Eyewitness News meteorologist Wayne Hart on Tuesday morning seemingly cleared the fog. Citing an unnamed pilot, he said Evansville air traffic control claimed a military C-130 released a stream of chaff – radar-jamming material sometimes used during training exercises – a few miles northwest of Evansville. A...