


Miscellaneous Local Product
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
478 AXUS43 KMQT 172001 MISMQT OPEN LAKE FORECAST FOR LAKE SUPERIOR FOR NOAA WEATHER RADIO NATIONAL WEATHER SERVICE MARQUETTE MI 401 PM EDT Fri Oct 17 2025 LSZ162-180800- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 401 PM EDT Fri Oct 17 2025 /301 PM CDT Fri Oct 17 2025/ .LATE THIS AFTERNOON...Southwest winds 15 to 25 knots. A slight chance of showers. Waves 1 to 3 feet. .TONIGHT...Southwest winds 15 to 25 knots diminishing to 10 to 20 knots after midnight. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. .SATURDAY...Southwest winds 5 to 15 knots becoming west 10 to 20 knots in the afternoon. Waves subsiding to calm to 2 feet. .SATURDAY NIGHT...Northwest winds 10 to 20 knots increasing to 15 to 25 knots after midnight. A slight chance of showers. Waves building to 1 to 3 feet. .SUNDAY...Northwest winds 15 to 25 knots. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. $$ LSZ263-180800- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 401 PM EDT Fri Oct 17 2025 .LATE THIS AFTERNOON...South winds 10 to 20 knots. A slight chance of showers. Waves 1 to 3 feet. .TONIGHT...Southwest winds 15 to 25 knots diminishing to 10 to 20 knots late. A slight chance of showers through midnight. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .SATURDAY...Southwest winds 5 to 15 knots veering west in the afternoon. Waves subsiding to calm to 2 feet. .SATURDAY NIGHT...Northwest winds 5 to 15 knots increasing to 15 to 25 knots. A slight chance of showers. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY...Northwest winds 20 to 30 knots. A slight chance of showers through early afternoon. Waves building to 3 to 6 feet occasionally to 8 feet. $$ LSZ264-180800- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 401 PM EDT Fri Oct 17 2025 .LATE THIS AFTERNOON...South winds 10 to 20 knots. A chance of showers and a slight chance of thunderstorms. Waves 2 to 4 feet. .TONIGHT...South winds 15 to 25 knots veering southwest after midnight, then diminishing to 10 to 20 knots late. A chance of showers through midnight. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .SATURDAY...West winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .SATURDAY NIGHT...West winds 5 to 15 knots becoming northwest 10 to 20 knots after midnight, then increasing to 15 to 25 knots late. A chance of showers. Waves building to 2 to 4 feet. .SUNDAY...Northwest winds 20 to 30 knots. A slight chance of showers through early afternoon. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. $$ LSZ265-180800- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 401 PM EDT Fri Oct 17 2025 .LATE THIS AFTERNOON...South winds 15 to 25 knots. A slight chance of showers and thunderstorms. Waves 2 to 4 feet. .TONIGHT...South winds 15 to 25 knots becoming southwest 10 to 20 knots after midnight. A chance of showers and a slight chance of thunderstorms through midnight. Waves subsiding to calm to 2 feet. .SATURDAY...Southwest winds 10 to 20 knots becoming west 5 to 15 knots in the afternoon, then veering northeast late. Waves calm to 2 feet. .SATURDAY NIGHT...Northwest winds 5 to 15 knots becoming north 10 to 20 knots after midnight, then becoming northwest 15 to 25 knots late. A chance of showers. Waves building to 2 to 4 feet. .SUNDAY...Northwest gales to 35 knots. A chance of showers. Waves building to 4 to 7 feet occasionally to 9 feet. $$ LSZ266-180800- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 401 PM EDT Fri Oct 17 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING... .LATE THIS AFTERNOON...South winds 20 to 30 knots. A slight chance of showers and thunderstorms. Waves 3 to 6 feet occasionally to 8 feet. .TONIGHT...South winds 20 to 30 knots becoming southwest 15 to 25 knots after midnight, then diminishing to 10 to 20 knots late. A slight chance of thunderstorms through midnight. A chance of showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet. .SATURDAY...Southwest winds 10 to 20 knots diminishing to 5 to 15 knots in the afternoon, then backing northeast late. A slight chance of showers by mid afternoon. Waves subsiding to calm to 2 feet. .SATURDAY NIGHT...Northeast winds 5 to 15 knots becoming north 10 to 20 knots after midnight, then increasing to 15 to 25 knots late. A chance of showers through midnight, then showers likely after midnight. Waves building to 2 to 4 feet. .SUNDAY...North gales to 35 knots backing northwest by mid afternoon. A chance of showers. Waves building to 8 to 11 feet occasionally to 14 feet. $$ LSZ267-180800- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 401 PM EDT Fri Oct 17 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING... .LATE THIS AFTERNOON...South winds 20 to 30 knots. Waves 3 to 5 feet occasionally to 7 feet. .TONIGHT...South winds 20 to 30 knots diminishing to 15 to 25 knots after midnight, then becoming southwest 10 to 20 knots late. Showers likely and a slight chance of thunderstorms through midnight, then a chance of showers after midnight. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 1 to 3 feet. .SATURDAY...Southwest winds 10 to 20 knots diminishing to 5 to 15 knots in the afternoon, then veering north late. A slight chance of showers. Waves subsiding to calm to 2 feet. .SATURDAY NIGHT...East winds 5 to 15 knots backing northeast after midnight, then becoming north 10 to 20 knots late. A chance of showers through midnight, then showers likely after midnight. Waves building to 1 to 3 feet. .SUNDAY...North winds 20 to 30 knots becoming northwest gales to 35 knots by mid afternoon. Showers likely through early afternoon, then a chance of showers by mid afternoon. Waves building to 8 to 12 feet occasionally to 15 feet. $$