Cool clouds bob through Nebraska air as thunderstorms crackle and spark. Take a look at some of the weather photos that our viewers have sent in.
Audra Leichleiter took this photo of mammatus clouds in Phillips, Neb.
Many of the clouds seen in these pictures are mammatus clouds. According to Ken Siemek, chief meteorologist at 10/11, while these clouds look intimidating they generally occur after severe weather has passed.