017 FZUS61 KBUF 160203 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1003 PM EDT Thu Oct 15 2026 For waters beyond five nautical miles of shore on Lake Ontario 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 high pressure ridge averaging 30.1 inches continues to exit eastward from the lake. Elsewhere, a low wobbles northeastward from the southwestern Great Lakes to southern Quebec tonight through Friday and deepens to 29.4 inches. This low track will allow a warm front to sweep northeastward across the lake tonight and a strong cold front to sweep eastward across the lake on Friday. Behind the cold front, a ridge averaging 30.2 inches should affect the lake through this Tuesday as one embedded high pressure center moves from the central Great Plains and vicinity to the Canadian Maritimes on Friday through Monday, and then another embedded and reinforcing high pressure center moves from near Manitoba toward Quebec this Monday through Tuesday. LOZ062-160900- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1003 PM EDT Thu Oct 15 2026 .REST OF TONIGHT...East winds 15 to 20 knots becoming southeast 10 to 15 knots. Rain likely late this evening, then rain after midnight. Waves 3 to 5 feet subsiding to 2 to 4 feet. .FRIDAY...Southwest winds 15 to 20 knots becoming northwest and increasing to 30 knots. Rain in the morning, then a chance of rain in the afternoon. Waves 2 to 4 feet building to 5 to 9 feet. Waves occasionally around 11 feet. .FRIDAY NIGHT...Northwest winds to 30 knots becoming north. A chance of rain. Waves 5 to 8 feet. Waves occasionally around 10 feet. .SATURDAY...North winds 15 to 25 knots becoming west and diminishing to 10 to 15 knots. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally around 9 feet. .SATURDAY NIGHT...West winds 10 to 15 knots increasing to 15 to 20 knots. Waves 2 to 4 feet building to 3 to 5 feet. .SUNDAY...Southwest winds 15 to 20 knots. Waves 3 to 5 feet. .MONDAY...Southwest winds 5 to 15 knots becoming west. Waves 2 to 4 feet subsiding to 2 feet or less. .TUESDAY...Northwest winds less than 10 knots becoming northeast. Waves 1 foot or less. $$ LOZ063>065-160900- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1003 PM EDT Thu Oct 15 2026 .REST OF TONIGHT...East winds 15 to 25 knots becoming southeast to 30 knots. A chance of rain late this evening, then rain after midnight. Waves 1 to 3 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .FRIDAY...South winds to 30 knots becoming west. Rain through early afternoon, then a chance of rain late. Waves 4 to 7 feet building to 6 to 9 feet. Waves occasionally around 11 feet. .FRIDAY NIGHT...Northwest winds to 30 knots becoming north. A chance of rain. Waves 5 to 9 feet. Waves occasionally around 11 feet. .SATURDAY...North winds to 30 knots becoming northwest and diminishing to 10 to 15 knots in the afternoon. Waves 5 to 8 feet subsiding to 2 to 4 feet. Waves occasionally around 10 feet. .SATURDAY NIGHT...West winds 15 to 20 knots. Waves 2 to 4 feet building to 3 to 5 feet. .SUNDAY...Southwest winds 15 to 20 knots. Waves 3 to 5 feet subsiding to 2 to 4 feet. .MONDAY...Southwest winds 15 to 20 knots diminishing to 5 to 15 knots. Waves 2 to 4 feet subsiding to 1 foot or less. .TUESDAY...West winds 10 knots or less becoming northeast. Waves 1 foot or less. $$ LOZ061-160900- MAFOR 1603/ ONTARIO WEST 1/2 11226 11326 11420 11536 11640 11630 11740 11730. Waves 3 to 5 feet subsiding to 2 to 4 feet overnight. Waves 2 to 4 feet building to 6 to 9 feet, and occasionally around 11 feet Friday. Waves 5 to 8 feet, and occasionallyaround 10 feet Friday evening. ONTARIO EAST 1/2 11326 11336 11446 11436 11536 11630 12730. Waves 1 to 3 feet building to 4 to 7 feet, and occasionally around 9 feet overnight. Waves 5 to 8 feet building to 6 to 9 feet, and occasionally around 11 feet Friday. Waves 5 to 9 feet, and occasionally around 11 feet Friday evening. $$  903 FZUS63 KMQT 160201 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 1001 PM EDT Thu Oct 15 2026 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 29.6 inch low over Lower Michigan lifts to southern Ontario at 29.5 inches Friday morning. In its wake, a 30.8 inch high lifting off of the Central Rockies tonight weakens to 30.6 inches on Friday as it moves east over the Plains. As it does so, the aforementioned low deepens to 29.4 inches and heads towards the Mouth of the St. Lawrence River. The high then slides south of the Great Lakes at 30.5 inches by Saturday night as a 29.2 inch Alberta Clipper moves through the Canadian Prairies towards Hudson Bay, deepening to 29.0 inches by the time it arrives on Sunday. This low is projected to bring troughing of 29.9 inches over Lake Superior on Sunday. As the low moves east over Hudson Bay and weakens with time Sunday night into Monday, expect high pressure ridging of 30.3 inches to return to the Upper Great Lakes by late Monday. The high pressure ridging strengthens to 30.4 inches over Lake Superior by Tuesday as the high pressure center at 30.5 inches over northern Ontario lifts towards James Bay. LSZ162-160800- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 1001 PM EDT Thu Oct 15 2026 /901 PM CDT Thu Oct 15 2026/ ...GALE WARNING IN EFFECT FROM 5 AM EDT /4 AM CDT/ FRIDAY THROUGH FRIDAY AFTERNOON... .REST OF TONIGHT...Northwest winds 10 to 20 knots becoming north 15 to 25 knots after midnight, then increasing to gales to 35 knots late. A chance of rain. Waves calm to 2 feet building to 6 to 9 feet occasionally to 11 feet. .FRIDAY...North gales to 40 knots diminishing to 15 to 25 knots late. Waves building to 9 to 12 feet occasionally to 15 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Northwest winds 10 to 20 knots backing west after midnight, then increasing to 20 to 30 knots late. Waves subsiding to calm to 2 feet, then building to 3 to 5 feet occasionally to 7 feet. .SATURDAY...Southwest gales to 35 knots. Waves building to 7 to 10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. .SATURDAY NIGHT...Southwest gales to 35 knots. Waves building to 7 to 10 feet occasionally to 13 feet. .SUNDAY...Southwest gales to 35 knots. Waves building to 8 to 11 feet occasionally to 14 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. .SUNDAY NIGHT...Southwest winds 20 to 30 knots becoming west 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet. .MONDAY...West winds 5 to 15 knots veering north. Waves calm to 2 feet. .TUESDAY...East winds 5 to 15 knots. Waves calm to 2 feet. $$ LSZ263-160800- 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- 1001 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM 5 AM EDT FRIDAY THROUGH FRIDAY AFTERNOON... .REST OF TONIGHT...North winds 5 to 15 knots increasing to gales to 40 knots. Rain. Waves calm to 2 feet building to 8 to 11 feet occasionally to 14 feet. .FRIDAY...North gales to 40 knots diminishing to 20 to 30 knots late. A chance of rain showers through early afternoon. Waves building to 11 to 15 feet occasionally to 19 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. .FRIDAY NIGHT...Northwest winds 15 to 25 knots becoming west 5 to 15 knots after midnight, then increasing to 20 to 30 knots late. Waves subsiding to 1 to 3 feet, then building to 3 to 6 feet occasionally to 8 feet. .SATURDAY...Southwest gales to 35 knots. Waves building to 8 to 11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet occasionally to 11 feet. .SATURDAY NIGHT...Southwest gales to 40 knots. Waves subsiding to 5 to 8 feet occasionally to 10 feet, then building to 8 to 11 feet occasionally to 14 feet. .SUNDAY...Southwest gales to 40 knots. Waves building to 9 to 12 feet occasionally to 15 feet, then subsiding to 6 to 9 feet occasionally to 11 feet. .SUNDAY NIGHT...Southwest gales to 35 knots becoming west 10 to 20 knots after midnight. Waves subsiding to 1 to 3 feet. .MONDAY...West winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .TUESDAY...East winds 5 to 15 knots veering southeast. Waves calm to 2 feet. $$ LSZ264-160800- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 1001 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM 5 AM EDT FRIDAY THROUGH FRIDAY AFTERNOON... .REST OF TONIGHT...East winds 5 to 15 knots becoming northeast 15 to 25 knots after midnight, then becoming north gales to 35 knots late. Rain. Waves calm to 2 feet building to 7 to 10 feet occasionally to 13 feet. .FRIDAY...North gales to 45 knots. A slight chance of rain showers through early afternoon. Waves building to 11 to 15 feet occasionally to 19 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. .FRIDAY NIGHT...Northwest winds 20 to 30 knots diminishing to 10 to 20 knots after midnight, then becoming west 20 to 30 knots late. Waves subsiding to 1 to 3 feet, then building to 3 to 6 feet occasionally to 8 feet. .SATURDAY...West gales to 35 knots backing southwest by mid afternoon. Waves building to 7 to 11 feet occasionally to 14 feet. .SATURDAY NIGHT...Southwest gales to 40 knots. Waves subsiding to 5 to 8 feet occasionally to 10 feet, then building to 8 to 11 feet occasionally to 14 feet. .SUNDAY...Southwest gales to 40 knots. Waves building to 10 to 14 feet occasionally to 18 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. .SUNDAY NIGHT...West gales to 35 knots diminishing to 15 to 25 knots after midnight. Waves subsiding to 1 to 3 feet. .MONDAY...West winds 5 to 15 knots diminishing to less than 10 knots. Waves subsiding to calm to 2 feet. .TUESDAY...East winds 5 to 15 knots veering southeast. Waves calm to 2 feet. $$ LSZ265-160800- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 1001 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM 6 AM EDT FRIDAY THROUGH FRIDAY EVENING... .REST OF TONIGHT...Southeast winds 5 to 15 knots becoming northeast 10 to 20 knots after midnight, then becoming north gales to 35 knots late. Rain. Waves calm to 2 feet building to 4 to 7 feet occasionally to 9 feet. .FRIDAY...North gales to 45 knots. A chance of showers. Waves building to 15 to 20 feet occasionally to 25 feet, then subsiding to 10 to 14 feet occasionally to 18 feet. .FRIDAY NIGHT...North gales to 35 knots becoming northwest 15 to 25 knots after midnight, then backing west late. Waves subsiding to 2 to 4 feet. .SATURDAY...West winds 20 to 30 knots backing southwest by mid afternoon. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. .SATURDAY NIGHT...Southwest winds 20 to 30 knots. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY...Southwest winds 20 to 30 knots. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 1 to 3 feet. .SUNDAY NIGHT...Southwest winds 20 to 30 knots becoming west 15 to 25 knots after midnight. Waves subsiding to calm to 2 feet. .MONDAY...West winds 5 to 15 knots. Waves calm to 2 feet. .TUESDAY...East winds 5 to 15 knots becoming southeast 10 to 20 knots. Waves calm to 2 feet. $$ LSZ266-160800- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- 1001 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM 6 AM EDT FRIDAY THROUGH FRIDAY EVENING... .REST OF TONIGHT...East winds 5 to 15 knots becoming northeast 10 to 20 knots after midnight, then becoming north gales to 35 knots late. Rain. Waves calm to 2 feet building to 4 to 7 feet occasionally to 9 feet. .FRIDAY...North gales to 45 knots. A chance of showers. Waves building to 15 to 20 feet occasionally to 25 feet, then subsiding to 12 to 17 feet occasionally to 21 feet. .FRIDAY NIGHT...North gales to 35 knots becoming northwest 15 to 25 knots after midnight, then backing west late. A slight chance of rain showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .SATURDAY...West gales to 35 knots backing southwest by mid afternoon. Waves building to 7 to 11 feet occasionally to 14 feet. .SATURDAY NIGHT...Southwest winds 20 to 30 knots. Waves subsiding to 4 to 8 feet occasionally to 10 feet. .SUNDAY...Southwest winds 20 to 30 knots. Waves building to 8 to 11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet occasionally to 11 feet. .SUNDAY NIGHT...Southwest winds 20 to 30 knots becoming west 10 to 20 knots after midnight. Waves subsiding to 2 to 4 feet. .MONDAY...West winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .TUESDAY...East winds 5 to 15 knots veering southeast. Waves calm to 2 feet. $$ LSZ267-160800- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1001 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM 6 AM EDT FRIDAY THROUGH FRIDAY EVENING... .REST OF TONIGHT...Southeast winds 10 to 20 knots backing east after midnight, then becoming northeast 15 to 25 knots late. Rain. Waves 1 to 3 feet building to 3 to 5 feet occasionally to 7 feet. .FRIDAY...North gales to 40 knots. A chance of showers. Waves building to 10 to 14 feet occasionally to 18 feet. .FRIDAY NIGHT...North gales to 35 knots diminishing to 15 to 25 knots after midnight, then becoming west 10 to 20 knots late. A slight chance of rain showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .SATURDAY...West winds 15 to 25 knots becoming southwest 20 to 30 knots by mid afternoon. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SATURDAY NIGHT...Southwest winds 20 to 30 knots. Waves building to 4 to 7 feet occasionally to 9 feet. .SUNDAY...Southwest gales to 35 knots diminishing to 20 to 30 knots by mid afternoon. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SUNDAY NIGHT...Southwest winds 20 to 30 knots diminishing to 15 to 25 knots after midnight. Waves subsiding to 2 to 4 feet. .MONDAY...West winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .TUESDAY...Northeast winds 5 to 15 knots veering southeast. Waves calm to 2 feet. $$ LSZ261-160800- MAFOR 1603/ Superior West...GALE WARNING IN EFFECT...11820 11840 13850 11840 11830 11720. A chance of showers overnight. Waves 1 foot or less building to 4 to 7 feet overnight. Waves 9 to 13 feet subsiding to 6 to 9 feet Friday. Waves 3 to 6 feet subsiding to 2 to 4 feet Friday evening. Superior North Central...GALE WARNING IN EFFECT...11216 11136 11856 12860 12850 11740. Waves 1 to 2 feet building to 3 to 5 feet overnight. Waves 7 to 10 feet building to 10 to 14 feet Friday. Waves 8 to 11 feet subsiding to 5 to 8 feet Friday evening. Superior South Central...GALE WARNING IN EFFECT...11216 11136 11856 11866 12860 12850. Waves 1 to 2 feet building to 2 to 4 feet overnight. Waves 6 to 9 feet building to 13 to 17 feet Friday. Waves 10 to 14 feet subsiding to 8 to 11 feet Fridayevening. Superior East...GALE WARNING IN EFFECT...11216 11126 11146 14850 11840. Waves 2 to 4 feet overnight. Waves 3 to 6 feet building to 10 to 14 feet Friday. Waves 10 to 13 feet subsiding to 8 to 11 feet Friday evening. $$ 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  038 FZUS61 KBUF 160203 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 PM EDT Thu Oct 15 2026 SLZ022-024-160900- Saint Lawrence River from Cape Vincent to Saint Regis 1003 PM EDT Thu Oct 15 2026 .OVERNIGHT...East winds 5 to 10 knots. Rain. .FRIDAY...Southeast winds 10 to 15 knots becoming west 15 to 20 knots. Rain. .FRIDAY NIGHT...Northwest winds 15 to 20 knots. A chance of rain in the evening. .SATURDAY...Northwest winds 15 to 20 knots becoming west 5 to 15 knots. Sunny. .SATURDAY NIGHT...West winds 10 knots or less becoming southwest. Mainly clear in the evening, then becoming partly cloudy. .SUNDAY...Southwest winds 5 to 15 knots. Mainly clear. .MONDAY...Southwest winds 5 to 15 knots diminishing to less than 10 knots. Mainly clear, then becoming partly cloudy. .TUESDAY...Light and variable winds. Becoming mainly clear. $$  167 FZUS63 KMKX 160207 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 907 PM CDT Thu Oct 15 2026 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... Low pressure of 29.7 inches over northeast IL will deepen to around 29.4 inches as it shifts into the eastern Great Lakes through Friday. Expect a northerly wind shift tonight to increase to high-end gales by late Friday morning as the low departs while a strong high pressure around 30.7 inches builds into the Plains. A Gale Warning remains in effect for all of the open waters of Lake Michigan Friday morning into Friday night. Light rain will continue over the north half overnight, with intermittent rain over the south half. Lake effect showers and a few thunderstorms are possible Friday along the back side of departing low pressure. A few waterspouts are possible in the Friday showers/thunderstorms, particularly over the south half of Lake Michigan. As the high sinks toward the Ohio River Valley on Saturday, strong low pressure around 29.0 inches will develop in northern Manitoba through the weekend. The tight pressure gradient may bring southwest gales to Lake Michigan on Sunday, primarily over the north half. LMZ261-362-364-366-563-565-567-868-160930- 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- 907 PM CDT Thu Oct 15 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .REST OF TONIGHT...Southeast winds 10 to 20 kt becoming east late this evening, then becoming north 15 to 25 kt after midnight and increasing to 30 kt late. Showers. Slight chance of waterspouts overnight. Waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. .FRIDAY...North winds to 30 kt increasing to gales to 45 kt. Slight chance of waterspouts. Showers in the morning, then chance of showers in the afternoon. Waves 7 to 10 ft occasionally to 13 ft building to 14 to 18 ft occasionally to 23 ft. .FRIDAY NIGHT...North gales to 40 kt becoming northwest winds 10 to 20 kt. Waves 14 to 18 ft occasionally to 23 ft subsiding to 6 to 9 ft occasionally to 12 ft. .SATURDAY...West winds 15 to 25 kt becoming southwest to 30 kt. Waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft. .SATURDAY NIGHT...Southwest gales to 35 kt increasing to gales to 40 kt. Waves 6 to 9 ft occasionally to 12 ft building to 8 to 12 ft occasionally to 16 ft. .SUNDAY...Southwest gales to 40 kt. Waves 10 to 14 ft occasionally to 18 ft. .SUNDAY NIGHT...Southwest gales to 40 kt. Waves 8 to 12 ft occasionally to 16 ft subsiding to 7 to 10 ft occasionally to 13 ft. .MONDAY...Southwest winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. .TUESDAY...Northeast winds 5 to 10 kt becoming east. Waves 1 to 2 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-160930- 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- 907 PM CDT Thu Oct 15 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT... .REST OF TONIGHT...South winds 15 to 25 kt becoming southwest late this evening, then becoming west to 30 kt after midnight. Chance of showers. Slight chance of waterspouts overnight. Waves 2 to 4 ft building to 8 to 12 ft occasionally to 16 ft. .FRIDAY...Northwest gales to 35 kt becoming north gales to 40 kt early in the afternoon, then increasing to gales to 45 kt late. Slight chance of waterspouts. Chance of showers in the morning, then showers in the afternoon. Waves 10 to 14 ft occasionally to 18 ft building to 18 to 23 ft occasionally to 30 ft. .FRIDAY NIGHT...North gales to 45 kt diminishing to 30 kt. Chance of rain showers in the evening. Waves 18 to 23 ft occasionally to 30 ft subsiding to 10 to 14 ft occasionally to 18 ft. .SATURDAY...North winds 10 to 20 kt backing to southwest 15 to 25 kt. Waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 6 ft occasionally to 8 ft. .SATURDAY NIGHT...Southwest winds to 30 kt. Waves 7 to 10 ft occasionally to 13 ft. .SUNDAY...Southwest winds to 30 kt with a few gale force gusts up to 35 kt. Waves 10 to 14 ft occasionally to 18 ft. .SUNDAY NIGHT...Southwest winds to 30 kt diminishing to 15 to 25 kt. Waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to 9 ft occasionally to 12 ft. .MONDAY...Southwest winds 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .TUESDAY...Southwest winds 5 to 10 kt backing to southeast. Waves 1 to 2 ft. $$ LMZ761-160930- MAFOR 1604/ MICHIGAN NORTH...GALE WARNING IN EFFECT...11126 12846 11856 11850 12860 11850. Waves 1 to 3 feet building to 4 to 7 feet overnight. Waves 6 to 9 feet building to 13 to 17 feet Friday. Waves 13 to 17 feet subsiding to 11 to 15 feet Friday evening. MICHIGAN SOUTH...GALE WARNING IN EFFECT...11640 11740 12750 11756 12866 11850. Waves 2 to 4 feet building to 8 to 11 feet overnight. Waves 9 to 12 feet building to 16 to 21 feet Friday. Waves 16 to 21 feet subsiding to 15 to 20 feet Friday evening. $$ Cronce Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes