*Use these links in tandem to see all available marine-related weather observations.
Western Lake Superior Marine Hazards
Last Updated: Wed Oct 20 18:45:04 GMT 2021.
Sample points represent (from top to bottom): Wind Direction and Speed (kts), Wind Gust (kts), and Wave Height (ft)
| Marine Hazards Legend |
| Threat |
Sustained Wind Speed or Gusts (kts) |
Wave Height (ft) |
| None |
< 15 |
< 1.5 |
| Kayak Caution |
15-18 knots |
1.5-2.0 ft |
| Limited |
19-23 knots |
2.1-3.9 ft |
| Elevated |
24-33 knots |
4.0-6.9 ft |
| Significant |
≥ 34 knots |
≥ 7.0 ft |
North Central Lake Superior and Isle Royale Marine Hazards
Last Updated: Wed Oct 20 18:45:04 GMT 2021.
Sample points represent (from top to bottom): Wind Direction and Speed (kts), Wind Gust (kts), and Wave Height (ft)
| Marine Hazards Legend |
| Threat |
Sustained Wind Speed or Gusts (kts) |
Wave Height (ft) |
| None |
< 15 |
< 1.5 |
| Kayak Caution |
15-18 knots |
1.5-2.0 ft |
| Limited |
19-23 knots |
2.1-3.9 ft |
| Elevated |
24-33 knots |
4.0-6.9 ft |
| Significant |
≥ 34 knots |
≥ 7.0 ft |
South Central Lake Superior Marine Hazards
Last Updated: Wed Oct 20 18:45:04 GMT 2021.
Sample points represent (from top to bottom): Wind Direction and Speed (kts), Wind Gust (kts), and Wave Height (ft)
| Marine Hazards Legend |
| Threat |
Sustained Wind Speed or Gusts (kts) |
Wave Height (ft) |
| None |
< 15 |
< 1.5 |
| Kayak Caution |
15-18 knots |
1.5-2.0 ft |
| Limited |
19-23 knots |
2.1-3.9 ft |
| Elevated |
24-33 knots |
4.0-6.9 ft |
| Significant |
≥ 34 knots |
≥ 7.0 ft |
Eastern Lake Superior Marine Hazards
Last Updated: Wed Oct 20 18:45:04 GMT 2021.
Sample points represent (from top to bottom): Wind Direction and Speed (kts), Wind Gust (kts), and Wave Height (ft)
| Marine Hazards Legend |
| Threat |
Sustained Wind Speed or Gusts (kts) |
Wave Height (ft) |
| None |
< 15 |
< 1.5 |
| Kayak Caution |
15-18 knots |
1.5-2.0 ft |
| Limited |
19-23 knots |
2.1-3.9 ft |
| Elevated |
24-33 knots |
4.0-6.9 ft |
| Significant |
≥ 34 knots |
≥ 7.0 ft |
Lake Michigan Marine Hazards
Last Updated: Wed Oct 20 18:45:04 GMT 2021.
| Marine Hazards Legend |
| Threat |
Sustained Wind Speed or Gusts (kts) |
Wave Height (ft) |
| None |
< 15 |
< 1.5 |
| Kayak Caution |
15-18 knots |
1.5-2.0 ft |
| Limited |
19-23 knots |
2.1-3.9 ft |
| Elevated |
24-33 knots |
4.0-6.9 ft |
| Significant |
≥ 34 knots |
≥ 7.0 ft |
Sample points represent (from top to bottom): Wind Direction and Speed (kts), Wind Gust (kts), and Wave Height (ft)
| Marine Hazards Legend |
| Threat |
Sustained Wind Speed or Gusts (kts) |
Wave Height (ft) |
| None |
< 15 |
< 1.5 |
| Kayak Caution |
15-18 knots |
1.5-2.0 ft |
| Limited |
19-23 knots |
2.1-3.9 ft |
| Elevated |
24-33 knots |
4.0-6.9 ft |
| Significant |
≥ 34 knots |
≥ 7.0 ft |
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