Shelf Cloud: They announce the thunderstorm, and their appearance scares.

An arcus cloud is a low, horizontal cloud formation. Roll clouds and shelf clouds

What you're seeing in a shelf cloud is the boundary between a downdraft and updraft of a thunderstorm or line of thunderstorms. The amazing photos and science behind one of the most menacing cloud formations: the shelf cloud 




Good view of a shelf cloud forming on the leading edge of the storm’s outflow
Good view of a shelf cloud forming on the leading edge of the storm’s outflow. by vtgivingchase

A shelf cloud is similar to lenticularis cloud, but on a much larger scale. a shelf cloud sometimes forms ahead of a severe, long-lasting thunderstorm such as a. The amazing photos and science behind one of the most menacing cloud formations: the shelf cloud.
A shelf cloud is a low, horizontal, wedge-shaped arcus cloud. a shelf cloud is attached to the base of the parent cloud, which is usually a thunderstorm, but could.


 A shelf cloud is similar to lenticularis cloud, but on a much larger scale. a shelf cloud sometimes forms ahead of a severe, long-lasting thunderstorm.

A shelf cloud is a low, horizontal, wedge-shaped arcus cloud. a shelf cloud is attached to the base of the parent cloud, which is usually a thunderstorm, but could.


Unlike a shelf cloud, the roll cloud is detached from its parent thunderstorm(s). Either the gust front surged well away from the parent thunderstorm(s), or the thunderstorm(s) may have fizzled, leaving this remnant roll cloud.

Nice pancake type shelf cloud over the southwest part of MN in the morning hours.

Nice pancake type shelf cloud over the southwest part of MN in the morning hours.
Nice pancake type shelf cloud over the southwest part of MN in the morning hours. by Amanda Hill

Shelf Cloud on a Cell, spectacular view 2015
 Shelf Cloud on a Cell approaching Wollongong. by Steen Barnes

Amazing weather phenomena: Shelf cloud over Nebraska
Amazing weather phenomena: Shelf cloud over Nebraska by Bryan Hellman 


A shelf cloud is a low, horizontal, wedge-shaped arcus cloud. A shelf cloud is attached to the base of the parent cloud, which is usually a thunderstorm, but could form on any type of convective clouds.

handycam Sony recording device HDR-CX160E time-lapse Full HD video (1920x1080p) format high quality definition. by +Lukas Ukas 


Shelf cloud, shot pano of a super cell thunderstorm. This storm produced a small tornada
Shelf cloud, shot pano of a super cell thunderstorm. This storm produced a small tornada 10 miles from where i shot this by BillyRWebb