Duluth, Minnesota – Boaters along western Lake Superior should prepare for gusty afternoons through Sunday, with peak wind gusts nearing 25 knots by Saturday in areas like Silver Bay and the Twin Ports.
According to the National Weather Service in Duluth, winds will shift to easterly Thursday before becoming predominantly westerly by Saturday. Each day will follow a pattern of increasing gusts late morning through afternoon, calming overnight. Stronger-than-forecast gusts are possible, especially if thunderstorms develop.
Wind gusts on Friday are expected to top 21 knots in Duluth, 20 knots at Silver Bay, and 19 knots at Grand Marais. By Saturday afternoon, forecast gusts rise to 23 knots at Two Harbors and Silver Bay, and 22 knots at the Twin Ports. Sunday’s pattern looks similar, with gusts remaining in the 18–21 knot range for most of the shoreline.
Recreational and commercial boaters should use caution, especially during peak afternoon hours. Tie down unsecured gear, wear life jackets, and avoid exposed crossings during periods of elevated gusts. Mariners are advised to monitor NOAA Weather Radio and marine forecasts for updates.
Winds are expected to remain elevated through Sunday evening. Additional advisories may be issued if afternoon gusts exceed expectations.
Five-Day Marine Wind Gust Forecast (Max Gusts in knots):
- Wednesday (7/9): 8–13 kt (calmest day)
- Thursday (7/10): 10–18 kt, increasing late
- Friday (7/11): 12–21 kt, highest around Duluth and Silver Bay
- Saturday (7/12): 15–23 kt, strongest across Two Harbors, Silver Bay
- Sunday (7/13): 15–21 kt, variable but persistent gusts
