Severe Storms - facts, warnings and protection. Site is from Australia. Good pictures and drawings in section 2. More Links - 47. Downburst - A strong downdraft resulting in an outward burst of damaging winds on or near the ground.
Downburst winds can produce damage similar to a strong tornado.
Although usually associated with thunderstorms, downbursts can occur with showers too weak to produce thunder. Thunder - 49. The Rube Goldberg HS Contest - Learn about the contest and also Rube. Fourth Grade PPOs 1. Describes the duration and timing of a repetitive pattern.