To radars, a volcanic cloud is indistinguishable from ordinary white clouds.
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These volcanic clouds can remain a problem for many days,
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A volcanic cloud rose, but a portion of the explosive force was deflected downward.
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By the time the volcanic cloud dissipates, both monsters have disappeared without a trace.
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Mark Servilla and Jon Dehn ) during the late 1990s to support analysis of volcanic clouds during eruptions.
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Apart from possibly affecting the climate, volcanic clouds from explosive eruptions also pose a serious hazard to aviation safety.
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However, the gelid atmosphere of southwestern Alaska limits the ascent of a volcanic cloud and this eruption's effects will only be noticed by nearby residents.
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In December 1989, for example, a Boeing 747 bound for Tokyo with 243 people aboard hit a volcanic cloud while approaching Anchorage, Alaska, for a refueling stop.
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A volcanic cloud descended on parts of Ecuador's capital on Monday, forcing the mayor to close schools and health officials to warn residents to protect themselves against respiratory ailments.
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A couple was killed by hot volcanic clouds while watching lava stream from Mount Karangetang on an island off the eastern coast of Indonesia, the official Antara news agency said Tuesday.
