Lake Michigan Triangle

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Across
  1. 3. charged weather disturbance
  2. 6. western point of the curious occurrence
  3. 8. set of large fresh water bodies
  4. 9. three pointed shape
  5. 10. one point of phenomenon in Michigan
  6. 12. wooden boat, no more
Down
  1. 1. lots of these, unanswered
  2. 2. no longer floating boat
  3. 4. downed schooner's name
  4. 5. something difficult to explain
  5. 7. number of vessels involved in crash of RB
  6. 11. fingerless glove
  7. 12. a Michigan town part of mystery