####018009975#### FZUS63 KMQT 131350 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 950 AM EDT Sat Apr 13 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 29.1 inch low continues to slowly lift northward through Quebec today on the east side of Hudson Bay. Meanwhile, ridging at 30.0 inches centered over western Lake Superior slides east across the entire lake this afternoon. Ridging shifts east tonight as a broad 29.6 inch low pressure moves across the Upper Midwest. This low pressure will continue to move east across the Central and Lower Great Lakes on Sunday. A 30.0 inch ridge extending from northwest Ontario follows in its wake Sunday afternoon into Monday, building to 30.2 inches Tuesday morning. Tuesday, deep low pressure of 29.2 inches will lift northeast through the central Plains. The low will weaken to 29.3 inches as it reaches the Upper Great Lakes on Wednesday. LSZ162-132200- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 950 AM EDT Sat Apr 13 2024 /850 AM CDT Sat Apr 13 2024/ .REST OF TODAY...Southwest winds 5 to 15 knots backing east in the afternoon, then becoming northeast 10 to 20 knots late. A chance of rain showers. Waves calm to 2 feet building to 2 to 4 feet. .TONIGHT...Northeast winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. A slight chance of rain showers. Waves subsiding to 1 to 3 feet, then building to 2 to 4 feet. .SUNDAY...West winds 5 to 15 knots backing south late. Waves calm to 2 feet. .SUNDAY NIGHT...West winds 5 to 15 knots becoming northwest 10 to 20 knots after midnight. Waves calm to 2 feet. .MONDAY...Northwest winds 10 to 20 knots backing south by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...East winds 10 to 20 knots increasing to 20 to 30 knots after midnight. Waves building to 4 to 7 feet occasionally to 9 feet. .TUESDAY...Northeast gales to 35 knots. A chance of rain showers, then rain showers. Waves building to 4 to 8 feet occasionally to 10 feet. .WEDNESDAY...Northwest winds 20 to 30 knots backing west. Rain showers, then a chance of rain showers. Waves subsiding to 2 to 4 feet. $$ LSZ263-132200- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 950 AM EDT Sat Apr 13 2024 .REST OF TODAY...Southwest winds 5 to 15 knots backing east late. A chance of rain showers. Waves calm to 2 feet building to 1 to 3 feet. .TONIGHT...East winds 10 to 20 knots becoming northeast 5 to 15 knots after midnight. A slight chance of rain showers. Waves building to 2 to 4 feet, then subsiding to calm to 2 feet. .SUNDAY...North winds 5 to 15 knots backing west in the afternoon, then backing southwest late. Waves calm to 2 feet. .SUNDAY NIGHT...West winds 5 to 15 knots. Waves building to 1 to 3 feet. .MONDAY...West winds 5 to 15 knots backing south by mid afternoon. Waves subsiding to calm to 2 feet. .MONDAY NIGHT...East winds 5 to 15 knots increasing to 10 to 20 knots after midnight. Waves building to 1 to 3 feet. .TUESDAY...East winds 20 to 30 knots. A chance of rain showers, then rain showers. Waves building to 6 to 9 feet occasionally to 11 feet. .WEDNESDAY...East winds 20 to 30 knots becoming west 15 to 25 knots. Rain showers, then a chance of rain showers. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet. $$ LSZ264-132200- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 950 AM EDT Sat Apr 13 2024 .REST OF TODAY...West winds 5 to 15 knots backing southwest late. A slight chance of rain showers by mid afternoon. Waves 1 to 3 feet subsiding to calm to 2 feet. .TONIGHT...Southeast winds 5 to 15 knots backing east after midnight. A slight chance of rain showers. Waves building to 1 to 3 feet. .SUNDAY...Northeast winds 5 to 15 knots backing north in the afternoon, then backing west late. Waves subsiding to calm to 2 feet. .SUNDAY NIGHT...West winds 5 to 15 knots. Waves building to 1 to 3 feet. .MONDAY...Northwest winds 5 to 15 knots backing west by mid afternoon. Waves subsiding to calm to 2 feet. .MONDAY NIGHT...East winds 5 to 15 knots increasing to 10 to 20 knots after midnight. Waves building to 1 to 3 feet. .TUESDAY...East winds 20 to 30 knots increasing to gales to 35 knots. A chance of rain showers, then rain showers. Waves building to 6 to 9 feet occasionally to 11 feet. .WEDNESDAY...East winds 20 to 30 knots becoming northwest 15 to 25 knots. Rain showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet. $$ LSZ265-132200- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 950 AM EDT Sat Apr 13 2024 .REST OF TODAY...West winds 10 to 20 knots diminishing to 5 to 15 knots in the afternoon, then backing east late. A slight chance of rain showers by mid afternoon. Waves 1 to 3 feet subsiding to calm to 2 feet. .TONIGHT...Southeast winds 10 to 20 knots backing east after midnight, then diminishing to 5 to 15 knots late. A chance of rain showers. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .SUNDAY...Northwest winds 5 to 15 knots increasing to 10 to 20 knots in the afternoon. Waves calm to 2 feet. .SUNDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet. .MONDAY...West winds 5 to 15 knots veering north by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...East winds 5 to 15 knots. Waves calm to 2 feet. .TUESDAY...East winds 15 to 25 knots increasing to 20 to 30 knots. A chance of rain showers, then rain showers. Waves building to 4 to 8 feet occasionally to 10 feet. .WEDNESDAY...Southeast winds 20 to 30 knots veering west. Rain showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet. $$ LSZ266-132200- 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- 950 AM EDT Sat Apr 13 2024 .REST OF TODAY...Northwest winds 15 to 25 knots becoming west 10 to 20 knots in the afternoon, then diminishing to 5 to 15 knots late. A slight chance of rain showers by mid afternoon. Waves 4 to 7 feet occasionally to 9 feet subsiding to 1 to 3 feet. .TONIGHT...Southeast winds 5 to 15 knots increasing to 10 to 20 knots after midnight, then backing east late. A chance of rain showers. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. .SUNDAY...Northeast winds 5 to 15 knots becoming north 10 to 20 knots in the afternoon, then backing northwest late. Waves subsiding to calm to 2 feet. .SUNDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet. .MONDAY...West winds 5 to 15 knots veering northwest by mid afternoon. Waves calm to 2 feet. .MONDAY NIGHT...Northwest winds 5 to 15 knots veering east after midnight. Waves calm to 2 feet. .TUESDAY...East winds 15 to 25 knots increasing to gales to 35 knots. A chance of rain showers, then rain showers. Waves building to 6 to 9 feet occasionally to 11 feet. .WEDNESDAY...Southeast gales to 35 knots veering northwest. Rain showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet. $$ LSZ267-132200- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 950 AM EDT Sat Apr 13 2024 .REST OF TODAY...Northwest winds 20 to 30 knots becoming west 15 to 25 knots in the afternoon, then diminishing to 10 to 20 knots late. A chance of rain showers by mid afternoon. Waves 4 to 7 feet occasionally to 9 feet subsiding to 2 to 4 feet. .TONIGHT...South winds 5 to 15 knots backing southeast after midnight, then increasing to 10 to 20 knots late. A chance of rain showers. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. .SUNDAY...Northeast winds 5 to 15 knots becoming north 10 to 20 knots in the afternoon, then backing northwest late. Waves subsiding to calm to 2 feet. .SUNDAY NIGHT...West winds 10 to 20 knots. Waves calm to 2 feet. .MONDAY...West winds 10 to 20 knots. Waves calm to 2 feet. .MONDAY NIGHT...Northwest winds 10 to 20 knots veering east after midnight. Waves calm to 2 feet. .TUESDAY...East winds 10 to 20 knots becoming southeast gales to 35 knots. Rain showers. Waves building to 4 to 7 feet occasionally to 9 feet. .WEDNESDAY...Southeast gales to 35 knots veering west. Rain showers, then a chance of rain showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet. $$ LSZ261-132200- MAFOR 1315/ Superior West 11400 11210 11220 12120 12110 11700. Waves 2 feet or less this afternoon. Waves 1 to 3 feet building to 2 to 4 feet tonight. Waves 1 to 3 feet Sunday morning. Superior North Central 12610 11510 12310 12210 11110. Waves 1 to 3 feet. Superior South Central 11620 11600 11300 11310 11320 11310 11210 11810. A chance of rain showers tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet this afternoon. Waves 1 to 3 feet tonight and Sunday morning. Superior East 11730 11630 11610 11500 13310 11210. A chance of rain showers tonight. Waves 3 to 6 feet this afternoon. Waves 2 to 4 feet tonight. Waves 1 to 3 feet Sunday morning. $$ LC Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes ####018005555#### FZUS63 KMKX 131354 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 854 AM CDT Sat Apr 13 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... A surface ridge of 30.2 inches over Wisconsin will move across Lake Michigan by the middle of the day today. Thus decreasing northwest winds are expected this morning followed by increasing southerly winds for the afternoon. A passing wave of low pressure of 29.6 inches and cold front will then shift winds back out of the north/northwest by early afternoon Sunday, with light variable winds expected late Sunday night into Monday. Gusty southerly winds are then expected to return by Tuesday over the open waters with gales becoming more likely Tuesday into Wednesday. LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876- 878-132115- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- 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 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 Pentwater to Manistee MI 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- 854 AM CDT Sat Apr 13 2024 STURGEON BAY WI TO POINT BETSIE MI SOUTH... .REST OF TODAY...Northwest winds 10 to 20 kt backing to south. Waves 3 to 5 ft subsiding to 2 to 4 ft. .TONIGHT...South winds 10 to 20 kt increasing to 15 to 25 kt late in the evening, then increasing to 30 kt after midnight becoming southwest late. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. .SUNDAY...West winds 15 to 25 kt veering to north 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .SUNDAY NIGHT...North winds 10 to 15 kt diminishing to 5 to 10 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft. .MONDAY...East winds 10 to 15 kt becoming southeast. Waves 1 to 3 ft. .MONDAY NIGHT...East winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft building to 2 to 4 ft. .TUESDAY...East winds to 30 kt becoming southeast. Rain showers likely. Waves 4 to 7 ft occasionally to 9 ft. .WEDNESDAY...South winds to 30 kt becoming southwest. Showers likely. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft. $$ LMZ261-362-364-563-132115- 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 Rock Island Passage to Sturgeon Bay WI- 854 AM CDT Sat Apr 13 2024 STURGEON BAY WI TO POINT BETSIE MI NORTH... .REST OF TODAY...Northwest winds 15 to 25 kt backing to southwest 10 to 20 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft. .TONIGHT...South winds 10 to 20 kt becoming southeast 15 to 25 kt, then becoming south 10 to 15 kt late. Chance of rain showers in the evening, then rain showers likely with slight chance of thunderstorms overnight. Waves 2 to 4 ft. .SUNDAY...Northwest winds 5 to 10 kt becoming north 10 to 15 kt. Waves 2 to 4 ft. .SUNDAY NIGHT...North winds 10 to 15 kt backing to west. Waves 1 to 3 ft. .MONDAY...West winds 10 to 15 kt becoming southwest. Waves 1 to 2 ft. .MONDAY NIGHT...Northeast winds 10 to 15 kt becoming east. Waves 1 to 2 ft. .TUESDAY...East winds 15 to 25 kt increasing to 30 kt. Chance of rain showers. Waves 1 to 3 ft building to 3 to 5 ft. .WEDNESDAY...Southeast winds to 30 kt. Showers. Waves 4 to 7 ft occasionally to 9 ft. $$ LMZ761-132115- MAFOR 1316/ MICHIGAN NORTH 11620 13420 11436 11430 11510 11710. Waves 1 to 3 feet this afternoon. Waves 2 to 4 feet tonight and Sunday morning. MICHIGAN SOUTH 11510 13420 11430 11540 11530 11620. Waves 1 to 3 feet this afternoon. Waves 2 to 4 feet building to 3 to 6 feet tonight. Waves 3 to 5 feet subsiding to 2 to 4 feet Sunday morning. $$ Patterson Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes