Challenges to Western Alaska Navigation

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Challenges to Western Alaska Navigation
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Since 1953 Crowley has been learning about Alaska
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Water levels are subject to wind and tide
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Channels and Crossings change from year to year
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Villages lack traditional port facilities
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Short Intense season subject to sudden freeze up
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Sites that require grounding a blocking narrow
channels
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Some facility docks are above MLLW
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Many Locations require tidal plain transits
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Commonly used tools Satellite Imagery
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Commonly used NOAA tools Charts Pubs
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Commonly used NOAA tools Navtex Forecast