What is a special marine warning?

The NWS will issue a special marine warning for the Great Lakes and the connecting waterways when a strong or severe thunderstorm develops or moves over the water. The special marine warning is issued for boaters, both recreational and commercial. For residents and visitors of Michigan’s many coastal communities, the special marine warning provides valuable information about a storm that is about to move onshore.

Show All Answers

1. What is a severe thunderstorm?
2. What is a tornado?
3. What is the difference between a tornado and a funnel cloud?
4. How many tornadoes usually occur in Michigan every year?
5. When do tornadoes generally occur?
6. How fast do tornadoes travel?
7. How far do tornadoes travel once they touch the ground?
8. When is a tornado or severe thunderstorm watch issued?
9. When is a tornado or severe thunderstorm warning issued?
10. What is a special marine warning?
11. How do I find out about a warning if my electricity is already out?