* WHAT…During the Small Craft Advisory, expect sustained winds
up to 23 knots from the southeast with gusts up to 30 knots.
The largest significant waves will be 5 feet with a potential
maximum wave height of 7 feet. During the Gale Warning, expect
sustained winds up to 25 knots from the northwest with gusts
up to 34 knots. The largest significant waves will be 6 feet
with a potential maximum wave height of 8 feet.
* WHERE…Harbor Beach to Port Sanilac MI and Port Sanilac to
Port Huron MI.
* WHEN…During the Small Craft Advisory, the maximum winds are
expected around 7 AM EST Wednesday with the largest waves
expected around 8 AM EST Wednesday. During the Gale Warning,
the maximum winds are expected around 8 AM EST Thursday with
the largest waves expected around 12 PM EST Thursday. During
the Gale Watch, the maximum winds are expected around 8 AM EST
Thursday with the largest waves expected around 12 PM EST
Thursday.
* IMPACTS…Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
No watches are valid as of Sun Apr 20 12:21:02 UTC 2025.
No Mesoscale Discussions are in effect as of Sun Apr 20 12:21:02 UTC 2025.
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