Scientists discover new hazard to Great Lakes swimmers

The storm on Lake Michigan lasted only 15 minutes, but the conditions it put into motion took seven lives. The incidents came under scrutiny by Wisconsin Sea Grant scientists who study a storm-induced wave called a meteotsunami (a contraction of the term meteorological tsunami, which means a wave caused by weather). Their results were published on Feb. 14 in “Scientific Reports.” They found that the storm formed a moderate-height meteotsunami, which is what went on to cause the unexpected rip currents, a previously undocumented phenomenon.

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