Shelf Cloud

Learn how squall line formation occurs when wind shear and cold pools interact to create destructive linear storms. Discover how these systems work.

Learn how do arcus clouds form when thunderstorm outflow lifts warm air along a gust front. View the science behind shelf and roll cloud development.

Shelf cloud formation happens when rain-cooled air lifts warm air along a gust front. Learn how these low arcus clouds mark the edge of a storm.

Understand how mesoscale convective systems form organized storm clusters across Australia and lead to severe weather hazards like squall lines.

Learn how squall lines Australia form and how to identify damaging straight-line winds on radar to stay safe during severe weather.

Learn about the five types of severe thunderstorms in Australia and how the BOM classifies supercells, squall lines and clusters to help you find out.

Review these 9 facts about Australian cloud formations to understand how Morning Glory and Hector clouds form.

Our guide explains the nature of a shelf cloud, how it forms on a gust front, and why it signals a weather change.