The Weather Blog

March 01, 2009|By FRANK ROYLANCE | FRANK ROYLANCE,frank.roylance@baltsun.com

Don Gansauer watched from Canton as a mushroom cloud rose over the Brandon Shores power plant. "What is the meteorological explanation of mushroom clouds ?" Heat (nuclear fireball, or cooling-tower steam) rises into still, colder air. As the column climbs, it cools to surrounding temperatures, slows and piles up into a "mushroom" cap.

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