Hurricane Take a small atmospheric
disturbance whirling around in a stretch of warm tropical ocean, at least
80°F. Make sure it's 300 miles or more from the equator so
it's sufficiently stirred by the Earth's rotation. Season it with
evaporating seawater, which condenses when it rises high enough into the
atmosphere. Lower the atmospheric pressure near the surface. What do you get?
The emergent happening known as a hurricane, with its emergent attributes
(e.g., winds of at least 74 miles per hour) and its emergent behaviors (e.g.,
an ability to suddenly alter course).