Dangerous Currents 101

You may have heard about the rip tide or undertow before. These are terms that people commonly use to describe dangerous currents. However, since there are no tides in the Great Lakes (needed to form a rip tide) and currents don’t pull a person down under the water (undertow), they are a bit inaccurate. Instead, we call these dangerous currents. Also, most people know that ocean currents can be dangerous, but don’t suspect that there are such strong currents in the Great Lakes.

This lesson explores dangerous currents, including rip currents, that commonly occur throughout the Great Lakes.


  • Learn what a dangerous current is and where they can be found.
  • Understand the influences that contribute to dangerous current development in the Great Lakes.
  • Explain several different types of dangerous currents found in the Great Lakes.

External Curriculum Materials


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