Fallstreak holes are a cloud formation that occurs as gaps in mid or high level cloud layers. Below them, trails of ice crystals dangle. In order for a fallstreak hole to form, the cloud layer must be ...

MOLINE, Ill — Perhaps one of the strangest appearing things in the sky you'll ever witness, this unique cloud formation comes in different sizes and shapes. It is, however, usually caused by the same ...

Cirrus and cirrocumulus clouds are needed for fallstreak clouds to form and those are more common in Florida during winter ...