FZUS63 KMKX 142049 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 249 PM CST Wed Jan 14 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 29.4 inches over western Pennsylvania will slide across New York tonight while deepening to 29.3 inches. Meanwhile, high pressure of 30.1 inches will expand across Wisconsin tonight and then cross the Upper Great Lakes on Thursday. Northerly gales to 40 knots will continue into the evening hours and drop below gales around midnight. Moderate freezing spray is expected through tonight. Winds will shift around to the south Thursday afternoon. Low pressure around 29.4 inches will cross Lake Superior on Friday, and stall over the lower Great Lakes Saturday while weakening to around 29.8 inches. A weaker low of 29.5 inches will track across Lake Superior Sunday afternoon. Several waves of colder air on the back side of the lows will overspread Lake Michigan on gusty westerly winds Friday night through Sunday night. Freezing spray will remain a concern given the very cold temperatures. A period of gales is possible Sunday night. LMZ261-362-364-366-563-565-567-868-150445- 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- 249 PM CST Wed Jan 14 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... ...GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT... .TONIGHT...North gales to 40 kt diminishing to winds to 30 kt around midnight. Freezing spray. Scattered snow showers. Waves 12 to 16 ft occasionally to 21 ft subsiding to 8 to 12 ft occasionally to 16 ft. .THURSDAY...North winds 15 to 25 kt diminishing to 10 to 20 kt late in the morning, then becoming southwest 10 to 15 kt late. Freezing spray in the morning. Waves 7 to 10 ft occasionally to 13 ft subsiding to 2 to 4 ft. .THURSDAY NIGHT...Southwest winds 10 to 20 kt becoming south 15 to 25 kt. Chance of snow in the evening, then snow overnight. Waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. .FRIDAY...Southwest winds 10 to 20 kt becoming west. Snow showers in the morning, then chance of snow showers in the afternoon. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft. .FRIDAY NIGHT...Northwest winds 10 to 20 kt. Chance of snow showers. Waves 4 to 6 ft occasionally to 8 ft. .SATURDAY...Northwest winds 10 to 20 kt increasing to 15 to 25 kt. Chance of snow showers. Waves 4 to 7 ft occasionally to 9 ft. .SATURDAY NIGHT...Northwest winds 15 to 25 kt. Waves 4 to 7 ft occasionally to 9 ft. .SUNDAY...West winds 15 to 25 kt. Chance of snow showers. Waves 4 to 7 ft occasionally to 9 ft. .MONDAY...Northwest winds to 30 kt. Heavy freezing spray. Chance of snow showers. Waves 6 to 9 ft occasionally to 12 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-150445- 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- 249 PM CST Wed Jan 14 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... ...GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT... .TONIGHT...North gales to 40 kt diminishing to winds to 30 kt around midnight. Freezing spray. Snow showers this evening, then scattered snow showers overnight. Waves 14 to 18 ft occasionally to 23 ft subsiding to 12 to 16 ft occasionally to 21 ft. .THURSDAY...North winds to 30 kt becoming northwest 10 to 20 kt, then becoming west 10 to 15 kt late. Freezing spray in the morning. Scattered snow showers in the morning. Waves 8 to 12 ft occasionally to 16 ft subsiding to 4 to 6 ft occasionally to 8 ft. .THURSDAY NIGHT...Southwest winds 10 to 20 kt increasing to 30 kt. Chance of snow in the evening, then snow overnight. Waves 3 to 5 ft building to 7 to 10 ft occasionally to 13 ft. .FRIDAY...Southwest winds to 30 kt becoming west. Snow showers in the morning, then snow showers likely in the afternoon. Waves 7 to 10 ft occasionally to 13 ft. .FRIDAY NIGHT...West winds 15 to 25 kt. Chance of snow showers in the evening, then snow showers likely overnight. Waves 5 to 8 ft occasionally to 10 ft. .SATURDAY...West winds 15 to 25 kt. Freezing spray. Snow showers likely. Waves 5 to 8 ft occasionally to 10 ft. .SATURDAY NIGHT...West winds to 30 kt diminishing to 15 to 25 kt. Freezing spray. Chance of snow showers. Waves 5 to 8 ft occasionally to 10 ft. .SUNDAY...West winds 15 to 25 kt increasing to 30 kt. Freezing spray. Chance of snow showers. Waves 5 to 8 ft occasionally to 10 ft. .MONDAY...Northwest gales to 35 kt. Heavy freezing spray. Chance of snow showers. Waves 8 to 12 ft occasionally to 16 ft. $$ LMZ761-150445- MAFOR 1423/ MICHIGAN NORTH...GALE WARNING IN EFFECT...13850 19857 11840 19847 11830 11820 11710 11610. Waves 11 to 16 feet subsiding to 8 to 11 feet tonight. Waves 6 to 9 feet subsiding to 1 to 3 feet Thursday. MICHIGAN SOUTH...GALE WARNING IN EFFECT...13857 11747 11847 11730 19737 11720 11610. Waves 12 to 17 feet subsiding to 10 to 14 feet tonight. Waves 9 to 12 feet subsiding to 3 to 6 feet Thursday. $$ Cronce Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes