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Thread: Alaska volcano spews thick ash cloud, triggering aviation warning

  1. #1

    Alaska volcano spews thick ash cloud, triggering aviation warning

    An Alaska volcano that has been rumbling since midsummer shot ash about 5 miles (8 km) into the sky on Sunday, triggering a warning to aviators and dusting one small fishing village, officials reported.Shishaldin Volcano, one of the most active in Alaska, kicked out a plume of ash that satellite imagery detected as high as 28,000 feet (8,535 m) above sea level, according to the Alaska Volcano Observatory, the joint federal-state-university office that tracks the state’s many volcanoes.
    The plume stretched about 90 miles (145 km) as of midday, blowing mostly east and over the Gulf of Alaska, said the observatory.


    A sprinkling of ash was reported in the tiny Aleutian village of False Pass, about 23 miles (37 km) northeast of the Shishaldin, said David Fee, the observatory’s University of Alaska Fairbanks coordinating scientist.
    “Someone reported some ash on their windshield,” he said.
    False Pass has a year-round population of about 40, according to state data, but draws many more people during the summer fishing season.
    Also pouring out of Shishaldin's caldera on Sunday was a stream of red-hot lava, the observatory reported.
    Shishaldin has been in an on-and-off eruptive phase since July, occasionally dribbling lava down its snowy flanks and puffing ash and steam.
    Most of the ash production has been relatively minor, but Sunday’s event was serious enough to warrant a “code red” warning for air traffic to avoid the area, the second such warning in the volcano's current eruptive phase, Fee said.
    “It’s a higher plume. It’s sustained. And it’s a higher concentration,” he said.

    More at: https://news.yahoo.com/alaska-volcan...030519592.html



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    Quote Originally Posted by Swordsmyth View Post
    An Alaska volcano that has been rumbling since midsummer shot ash about 5 miles (8 km) into the sky on Sunday, triggering a warning to aviators and dusting one small fishing village, officials reported.Shishaldin Volcano, one of the most active in Alaska, kicked out a plume of ash that satellite imagery detected as high as 28,000 feet (8,535 m) above sea level, according to the Alaska Volcano Observatory, the joint federal-state-university office that tracks the state’s many volcanoes.
    The plume stretched about 90 miles (145 km) as of midday, blowing mostly east and over the Gulf of Alaska, said the observatory.


    A sprinkling of ash was reported in the tiny Aleutian village of False Pass, about 23 miles (37 km) northeast of the Shishaldin, said David Fee, the observatory’s University of Alaska Fairbanks coordinating scientist.
    “Someone reported some ash on their windshield,” he said.
    False Pass has a year-round population of about 40, according to state data, but draws many more people during the summer fishing season.
    Also pouring out of Shishaldin's caldera on Sunday was a stream of red-hot lava, the observatory reported.
    Shishaldin has been in an on-and-off eruptive phase since July, occasionally dribbling lava down its snowy flanks and puffing ash and steam.
    Most of the ash production has been relatively minor, but Sunday’s event was serious enough to warrant a “code red” warning for air traffic to avoid the area, the second such warning in the volcano's current eruptive phase, Fee said.
    “It’s a higher plume. It’s sustained. And it’s a higher concentration,” he said.

    More at: https://news.yahoo.com/alaska-volcan...030519592.html



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