####018009809#### FZUS63 KMQT 100800 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 400 AM EDT Wed Apr 10 2024 For waters beyond 5 nautical miles of shore on Lake Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS... A 29.8 inch trough over southern Manitoba settles southeast across Minnesota and Wisconsin by tonight. Meanwhile, a 29.5 inch low pressure over the lower Mississippi Valley Wednesday deepens to 29.2 inches while tracking northeast toward the Lower Great Lakes Thursday. Ridging at 30.0 inches builds and clips western Lake Superior Friday evening then shifts across Lake Superior Saturday. On Sunday, the ridge weakens to 29.9 inches over the Upper Great Lakes as a 29.4 inch low pressure system approaches from the west. LSZ162-101600- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 400 AM EDT Wed Apr 10 2024 /300 AM CDT Wed Apr 10 2024/ .EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...Southwest winds 5 to 15 knots backing south in the afternoon, then backing east late. A slight chance of rain showers by mid afternoon. Waves calm to 2 feet. .TONIGHT...Northeast winds 5 to 15 knots backing north late. A slight chance of rain showers. Waves calm to 2 feet. .THURSDAY...Northeast winds 5 to 15 knots backing northwest late. A chance of rain showers. Waves calm to 2 feet. .THURSDAY NIGHT...Northwest winds 10 to 20 knots increasing to 20 to 30 knots after midnight. A chance of rain showers. Waves building to 2 to 4 feet. .FRIDAY...Northwest winds 15 to 25 knots. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Northwest winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .SATURDAY...East winds 5 to 15 knots becoming northeast 10 to 20 knots. A chance of rain showers. Waves calm to 2 feet. .SUNDAY...Northeast winds 15 to 25 knots becoming northwest 10 to 20 knots. Waves calm to 2 feet. $$ LSZ263-101600- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 400 AM EDT Wed Apr 10 2024 .EARLY THIS MORNING...Southwest winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...Southwest winds 5 to 15 knots backing east late. Waves calm to 2 feet. .TONIGHT...East winds 5 to 15 knots backing northeast late. A slight chance of rain showers. Waves calm to 2 feet. .THURSDAY...Northeast winds 5 to 15 knots backing north late. A chance of rain showers. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .THURSDAY NIGHT...North winds 10 to 20 knots increasing to 15 to 25 knots after midnight. A chance of rain showers. Waves building to 3 to 5 feet occasionally to 7 feet. .FRIDAY...Northwest winds 15 to 25 knots diminishing to 10 to 20 knots by mid afternoon. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Northwest winds 5 to 15 knots. Waves subsiding to 1 to 3 feet. .SATURDAY...West winds 5 to 15 knots backing east. A chance of rain showers. Waves subsiding to calm to 2 feet. .SUNDAY...Northeast winds 5 to 15 knots backing west. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. $$ LSZ264-101600- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 400 AM EDT Wed Apr 10 2024 .EARLY THIS MORNING...Southwest winds less than 10 knots. Waves calm to 2 feet. .TODAY...Southwest winds less than 10 knots backing southeast late. Waves calm to 2 feet. .TONIGHT...Southeast winds 5 to 15 knots backing northeast late. A slight chance of rain showers through midnight. Waves calm to 2 feet. .THURSDAY...Northeast winds 5 to 15 knots backing north late. A chance of rain showers. Waves calm to 2 feet. .THURSDAY NIGHT...North winds 15 to 25 knots increasing to 20 to 30 knots after midnight. A chance of rain showers. Waves building to 4 to 7 feet occasionally to 9 feet. .FRIDAY...Northwest winds 20 to 30 knots. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Northwest winds 10 to 20 knots. Waves subsiding to 2 to 4 feet. .SATURDAY...West winds 10 to 20 knots becoming southeast 5 to 15 knots. A chance of rain showers. Waves subsiding to calm to 2 feet. .SUNDAY...West winds 5 to 15 knots veering northwest. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. $$ LSZ265-101600- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 400 AM EDT Wed Apr 10 2024 .EARLY THIS MORNING...Southwest winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...Southwest winds 5 to 15 knots backing east late. Waves calm to 2 feet. .TONIGHT...Southeast winds 5 to 15 knots veering south late. A slight chance of rain showers through midnight. Waves calm to 2 feet. .THURSDAY...East winds 5 to 15 knots backing northeast in the afternoon, then becoming north 10 to 20 knots late. A chance of rain showers. Waves calm to 2 feet. .THURSDAY NIGHT...North winds 15 to 25 knots increasing to 20 to 30 knots after midnight. Rain showers likely through midnight, then a chance of rain showers after midnight. Waves building to 4 to 7 feet occasionally to 9 feet. .FRIDAY...Northwest gales to 35 knots diminishing to 20 to 30 knots by mid afternoon. Waves building to 6 to 9 feet occasionally to 11 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Northwest winds 15 to 25 knots. Waves subsiding to 1 to 3 feet. .SATURDAY...West winds 10 to 20 knots backing southeast. A chance of rain showers. Waves subsiding to calm to 2 feet. .SUNDAY...North winds 10 to 20 knots backing west. Waves calm to 2 feet. $$ LSZ266-101600- 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- 400 AM EDT Wed Apr 10 2024 ...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .EARLY THIS MORNING...Southwest winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...Southwest winds 5 to 15 knots backing southeast late. Waves calm to 2 feet. .TONIGHT...Southeast winds 5 to 15 knots becoming south 10 to 20 knots after midnight, then diminishing to 5 to 15 knots late. A slight chance of rain showers after midnight. Waves building to 1 to 3 feet. .THURSDAY...Southeast winds 5 to 15 knots backing east in the afternoon, then becoming north 10 to 20 knots late. A chance of rain showers. Waves subsiding to calm to 2 feet. .THURSDAY NIGHT...North winds 15 to 25 knots increasing to gales to 35 knots after midnight. Rain showers likely. Waves building to 6 to 9 feet occasionally to 11 feet. .FRIDAY...Northwest gales to 40 knots. A chance of rain showers. Waves building to 8 to 12 feet occasionally to 15 feet. .FRIDAY NIGHT...Northwest winds 20 to 30 knots diminishing to 15 to 25 knots after midnight. Waves subsiding to 4 to 7 feet occasionally to 9 feet. .SATURDAY...Northwest winds 15 to 25 knots becoming southeast 10 to 20 knots. A chance of rain showers. Waves subsiding to calm to 2 feet. .SUNDAY...Northwest winds 10 to 20 knots. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. $$ LSZ267-101600- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 400 AM EDT Wed Apr 10 2024 ...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .EARLY THIS MORNING...South winds 10 to 20 knots. Waves calm to 2 feet. .TODAY...South winds 10 to 20 knots becoming southwest 5 to 15 knots in the afternoon, then backing east late. Waves calm to 2 feet. .TONIGHT...South winds 5 to 15 knots increasing to 10 to 20 knots after midnight, then backing southeast late. Waves building to 1 to 3 feet. .THURSDAY...Southeast winds 10 to 20 knots becoming east 5 to 15 knots in the afternoon, then becoming northeast 10 to 20 knots late. A chance of rain showers. Waves subsiding to calm to 2 feet. .THURSDAY NIGHT...North winds 15 to 25 knots increasing to gales to 35 knots after midnight. Rain showers. Waves building to 6 to 9 feet occasionally to 11 feet. .FRIDAY...Northwest gales to 40 knots. Rain showers likely through early afternoon, then a chance of rain showers by mid afternoon. Waves building to 8 to 11 feet occasionally to 14 feet. .FRIDAY NIGHT...Northwest gales to 35 knots diminishing to 20 to 30 knots after midnight. Waves subsiding to 5 to 8 feet occasionally to 10 feet. .SATURDAY...West winds 15 to 25 knots becoming southeast 10 to 20 knots. A chance of rain showers. Waves subsiding to calm to 2 feet. .SUNDAY...West winds 10 to 20 knots veering northwest. Waves calm to 2 feet. $$ LSZ261-101600- MAFOR 1009/ Superior West 12500 11400 11300 11200 13100. Waves 1 foot or less. Superior North Central 14500 14300. Waves 1 to 2 feet. Superior South Central 13500 14300 11400. Waves 2 feet or less. Superior East 11400 12500 11400 12300 11410 11310. Waves 1 to 3 feet. $$ WFO MQT Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes ####018006291#### FZUS63 KMKX 100805 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 305 AM CDT Wed Apr 10 2024 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan. Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered. .SYNOPSIS... Light to moderate southwest to southerly winds wind will persist today and tonight as weak high pressure around 29.9 inches is pushed east by an area of low pressure around 29.7 tracking across the Upper Midwest today. Winds will increase and turn more east- northeasterly heading into Thursday as a stronger low pressure deepens to around 29.0 inches as it lifts across the lower Mississippi and Ohio River Valleys. With the strong pressure gradient, expect gusts up to around 30 knots, but cannot rule out a few gale force gusts on Thursday. The low pressure continues to deepen to around 28.9 inches as it lifts across IN into lower MI through Thursday night. Widespread gusts exceeding 30 knots are expected on the backside of the departing low and while there remains some uncertainty, there is a potential for gales through the day Friday. Will continue to monitor trends for stronger northwesterly winds/gales on Friday to assess marine headlines. Otherwise, the low lifts across eastern Ontario and Quebec later Friday and into Saturday and winds weaken across Lake Michigan for the weekend. LMZ261-362-364-366-563-565-567-868-101530- Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and north of a line from Charlevoix MI to South Fox Island 5 NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to Mid Lake- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI- Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid Lake- 305 AM CDT Wed Apr 10 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TODAY...Southwest winds 10 to 20 kt becoming south. Waves 1 to 3 ft. .TONIGHT...South winds 10 to 20 kt becoming southeast 10 to 15 kt after midnight, then becoming east 5 to 10 kt late. Slight chance of rain showers overnight. Waves 1 to 3 ft subsiding to 1 to 2 ft. .THURSDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt late in the morning, then increasing to 30 kt early in the afternoon becoming north late. Chance of rain showers in the morning, then rain showers in the afternoon. Waves 1 to 2 ft building to 5 to 8 ft occasionally to 10 ft. .THURSDAY NIGHT...North winds to 30 kt becoming northwest gales to 40 kt overnight. Rain showers. Waves 7 to 10 ft occasionally to 13 ft. .FRIDAY...Northwest gales to 40 kt. Chance of rain showers in the morning. Waves 8 to 11 ft occasionally to 14 ft. .FRIDAY NIGHT...Northwest gales to 35 kt diminishing to 30 kt. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to 8 ft. .SATURDAY...West winds 15 to 25 kt becoming southwest 10 to 20 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft. .SUNDAY...South winds 10 to 20 kt becoming southwest. Waves 2 to 4 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-101530- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 305 AM CDT Wed Apr 10 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...South winds 10 to 15 kt becoming southeast 10 to 20 kt. Waves 1 to 3 ft. .TONIGHT...East winds 10 to 15 kt becoming northeast 10 to 20 kt. Slight chance of rain showers in the evening, then chance of rain showers overnight. Waves 1 to 3 ft. .THURSDAY...Northeast winds 15 to 25 kt becoming north to 30 kt late in the morning, then increasing to gales to 35 kt early in the afternoon diminishing to 30 kt late. Rain showers. Waves 2 to 4 ft building to 7 to 10 ft occasionally to 13 ft. .THURSDAY NIGHT...Northwest winds to 30 kt increasing to gales to 35 kt. Rain showers. Waves 8 to 11 ft occasionally to 14 ft. .FRIDAY...Northwest gales to 40 kt diminishing to gales to 35 kt. Chance of rain showers. Waves 10 to 14 ft occasionally to 18 ft. .FRIDAY NIGHT...Northwest winds 15 to 25 kt. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to 8 ft. .SATURDAY...West winds 10 to 20 kt backing to south. Waves 3 to 5 ft subsiding to 2 to 4 ft. .SUNDAY...Southwest winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 2 to 4 ft. $$ LMZ761-101530- MAFOR 1010/ MICHIGAN NORTH 12510 13420 11410 11310 11200. Waves 1 to 3 feet. MICHIGAN SOUTH 13410 11320 11310 12210 11120. A chance of showers overnight. Waves 2 feet or less. $$ Wagner Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes