On June 4th, 2013, a strange blob of radar activity appeared in Huntsville, Alabama. Local weather meteorologists were surprised, to say the least, when what they originally thought was a popup storm appeared on radar.
Matthew Havin, data services manager at weather technology company Baron Services, told LiveScience in an email that they were receiving calls and emails from all over Huntsville and from meteorologists of neighboring states trying to figure out what was going on.
Theories attempting to explain the event ranged from ladybug swarms to aliens (of course). After analyzing the unusual blob with dual-polarity radar they were able to determine that the cloud was likely military chaff.
It turns out that after contacting Redstone Arsenal it was confirmed that they had been testing military chaff that dispersed in a cloud formation.
Not as exciting as ALIENS, but an interesting story nonetheless!