Quote:
Originally Posted by Glove
Question for the experienced boaters: We were out in the boat to swim and tube with the kids today around 11:30 am. We didn't stray more than 7 minutes from our dock. After about 45 minute, the skies became a bit darker, and at the first site of lightning off in the distance, we immediately packed it in. We had the kids on board and were on our way within 60 seconds of seeing the first lightning. On our way in, we note a few more bolts of lightning, and they were clearly getting closer. And whereas the timing between the bolt and the thunder was 5 seconds (e.g. 5 miles) when we first saw the lightning, it was now about 1-1/2 seconds (e.g. 1.5 miles). ...
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Perhaps just a typo above, but if you see lightning and then hear its associated thunder 5 seconds later, that lightning is 1 mile away, not 5 miles away. Sound travels at about 1/5 mile per second. So, if you see the bolt and then hear the thunder in 1 second, that bolt was about 1100 feet away.
- Frank