Alaska Volcano Erupts Twice, Sends Ash 12 miles Up

From Yahoo! News: Science News:

Alaska's Mount Redoubt erupted several times Thursday, spewing a more than 12-mile-high cloud that could drop ash on Anchorage for the first time since the volcano began erupting Sunday night. The Alaska Volcano Observatory said the first eruption around 8:30 a.m. shot an ash cloud about 30,000 feet in the air, and a second eruption about an hour later sent ash 65,000 feet high — the highest cloud since the eruptions began. Five to 10 smaller eruptions followed, with none of their plumes surpassing 20,000 feet.

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