All about Earth and weather terms. Biosphere, hurricanes, lightning, ozone layer, snow, temperature, thunder, tornadoes, tsunamis, weather, and other Earth and weather terms.
Tuesday, May 24, 2011
Hurricane warning
A hurricane warning means hurricane conditions (sustained winds of 74 mph or higher) are expected somewhere within the specified area. The hurricane warning is issued 36 hours in advance of the anticipated onset of tropical-storm-force winds.
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