####018012415#### FZUS63 KMQT 230207 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 1007 PM EDT Mon Apr 22 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...29.4 inch low pressure skidding across northern Ontario tonight will track southeast tonight and dive over eastern Lake Superior at 29.5 inches on Tuesday morning. Meanwhile a 30.3 inch high pressure shifts into northern Manitoba and into northern Ontario Tuesday evening. This high strengthens to 30.4 inches and quickly shifts south across Lake Superior Tuesday night and Wednesday. Ridging spreads east of the area Thursday ahead of a low pressure system that deepens to 29.2 inches over the North- Central Plains Friday. Saturday morning the low fills to 29.4 as spins over the Upper Great Lakes. LSZ162-231015- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 1007 PM EDT Mon Apr 22 2024 /907 PM CDT Mon Apr 22 2024/ .REST OF TONIGHT...Southwest winds 10 to 20 knots veering west late. A chance of rain showers by midnight. Waves 1 to 3 feet subsiding to calm to 2 feet. .TUESDAY...West winds 20 to 30 knots veering northeast in the afternoon, then diminishing to 15 to 25 knots late. A chance of rain showers, possibly mixed with snow. Waves building to 5 to 9 feet occasionally to 11 feet. .TUESDAY NIGHT...Northeast winds 15 to 25 knots diminishing to 10 to 20 knots after midnight, then veering east late. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY...East winds 10 to 20 knots. Waves subsiding to 1 to 3 feet. .WEDNESDAY NIGHT...East winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .THURSDAY...East winds 5 to 15 knots increasing to 10 to 20 knots by mid afternoon. Waves building to 1 to 3 feet. .THURSDAY NIGHT...East winds 15 to 25 knots veering southeast after midnight. Waves building to 2 to 4 feet. .FRIDAY...East winds 15 to 25 knots backing northeast. A chance of rain showers, then rain showers. Waves 2 to 4 feet. .SATURDAY...North winds 20 to 30 knots veering northeast. Rain showers likely, then a chance of rain showers. Waves building to 3 to 5 feet occasionally to 7 feet. $$ LSZ263-231015- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 1007 PM EDT Mon Apr 22 2024 ...GALE WARNING IN EFFECT FROM 8 AM EDT TUESDAY THROUGH TUESDAY AFTERNOON... .REST OF TONIGHT...Southwest winds 10 to 20 knots veering west late. A chance of rain showers. Waves 1 to 3 feet building to 2 to 4 feet. .TUESDAY...North gales to 35 knots veering northeast in the afternoon, then diminishing to 20 to 30 knots late. A chance of rain showers through early afternoon. A chance of snow showers. Waves building to 7 to 11 feet occasionally to 14 feet. .TUESDAY NIGHT...Northeast winds 15 to 25 knots diminishing to 5 to 15 knots late. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY...East winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Southeast winds 5 to 15 knots veering south after midnight. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots becoming east 10 to 20 knots by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...South winds 10 to 20 knots increasing to 15 to 25 knots after midnight. Waves building to 2 to 4 feet. .FRIDAY...Southeast winds 15 to 25 knots backing east. Rain showers. Waves building to 3 to 6 feet occasionally to 8 feet. .SATURDAY...North winds 20 to 30 knots veering northeast. Rain showers, then a chance of rain showers. Waves building to 3 to 6 feet occasionally to 8 feet. $$ LSZ264-231015- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 1007 PM EDT Mon Apr 22 2024 ...GALE WARNING IN EFFECT FROM 8 AM EDT TUESDAY THROUGH TUESDAY AFTERNOON... .REST OF TONIGHT...Southwest winds 10 to 20 knots veering west late. Rain showers likely by midnight, then a chance of rain showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet. .TUESDAY...North gales to 35 knots. A chance of rain showers through early afternoon. A chance of snow showers. Waves building to 10 to 14 feet occasionally to 18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. .TUESDAY NIGHT...Northeast winds 20 to 30 knots diminishing to 10 to 20 knots. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY...East winds 5 to 15 knots veering southeast by mid afternoon. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots becoming southeast 10 to 20 knots by mid afternoon. Waves building to 2 to 4 feet. .THURSDAY NIGHT...Southeast winds 15 to 25 knots veering south after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Southeast winds 20 to 30 knots. A chance of rain showers, then rain showers. Waves building to 4 to 8 feet occasionally to 10 feet. .SATURDAY...North winds 20 to 30 knots veering northeast. Rain showers. A chance of rain showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet. $$ LSZ265-231015- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 1007 PM EDT Mon Apr 22 2024 ...GALE WARNING IN EFFECT FROM 8 AM EDT TUESDAY THROUGH TUESDAY AFTERNOON... .REST OF TONIGHT...Southwest winds 15 to 25 knots becoming west 10 to 20 knots late. Rain showers likely by midnight, then a chance of rain showers after midnight. Waves 1 to 3 feet subsiding to calm to 2 feet. .TUESDAY...West winds 15 to 25 knots becoming north gales to 35 knots in the afternoon. A chance of snow showers, possibly mixed with rain. Waves building to 10 to 14 feet occasionally to 18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. .TUESDAY NIGHT...North gales to 35 knots becoming northeast 20 to 30 knots after midnight, then diminishing to 15 to 25 knots late. A slight chance of snow showers through midnight. Waves subsiding to 4 to 7 feet occasionally to 9 feet. .WEDNESDAY...Northeast winds 10 to 20 knots veering east by mid afternoon. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Southeast winds 5 to 15 knots veering south after midnight. Waves calm to 2 feet. .THURSDAY...South winds 5 to 15 knots becoming southeast 10 to 20 knots by mid afternoon. Waves building to 1 to 3 feet. .THURSDAY NIGHT...South winds 15 to 25 knots increasing to 20 to 30 knots after midnight. Waves building to 2 to 4 feet. .FRIDAY...Southeast winds 20 to 30 knots. A chance of rain showers, then rain showers and a chance of thunderstorms. Waves building to 3 to 6 feet occasionally to 8 feet. .SATURDAY...South winds 20 to 30 knots backing north. Rain showers. A chance of rain showers. Waves subsiding to 2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet. $$ LSZ266-231015- 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- 1007 PM EDT Mon Apr 22 2024 ...GALE WARNING IN EFFECT FROM 8 AM EDT TUESDAY THROUGH TUESDAY AFTERNOON... .REST OF TONIGHT...South winds 15 to 25 knots becoming southwest 10 to 20 knots late. Rain showers likely by midnight, then a chance of rain showers after midnight. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 4 feet. .TUESDAY...West winds 20 to 30 knots becoming north gales to 35 knots in the afternoon. A chance of snow showers, possibly mixed with rain. Waves building to 10 to 14 feet occasionally to 18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. .TUESDAY NIGHT...Northeast gales to 40 knots diminishing to 15 to 25 knots. A slight chance of snow showers through midnight. Waves subsiding to 4 to 7 feet occasionally to 9 feet. .WEDNESDAY...Northeast winds 10 to 20 knots diminishing to 5 to 15 knots by mid afternoon. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Southeast winds 5 to 15 knots becoming south 10 to 20 knots after midnight. Waves calm to 2 feet. .THURSDAY...South winds 10 to 20 knots backing southeast by mid afternoon. Waves building to 2 to 4 feet. .THURSDAY NIGHT...South winds 15 to 25 knots increasing to 20 to 30 knots after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .FRIDAY...Southeast winds 20 to 30 knots increasing to gales to 35 knots. A chance of rain showers, then rain showers. Waves building to 4 to 8 feet occasionally to 10 feet. .SATURDAY...South winds 20 to 30 knots backing north. Rain showers. A chance of rain showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet, then building to 4 to 7 feet occasionally to 9 feet. $$ LSZ267-231015- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1007 PM EDT Mon Apr 22 2024 ...GALE WARNING IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE TUESDAY NIGHT... .REST OF TONIGHT...South winds 20 to 30 knots diminishing to 15 to 25 knots late. A slight chance of rain showers by midnight, then rain showers after midnight. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 4 feet. .TUESDAY...Southwest winds 10 to 20 knots becoming north 15 to 25 knots in the afternoon, then becoming northeast gales to 35 knots late. A slight chance of rain showers. A slight chance of snow showers by mid afternoon. Waves subsiding to 1 to 3 feet, then building to 8 to 11 feet occasionally to 14 feet. .TUESDAY NIGHT...Northeast gales to 40 knots diminishing to 20 to 30 knots late. Freezing spray after midnight. Waves building to 9 to 12 feet occasionally to 15 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .WEDNESDAY...Northeast winds 10 to 20 knots becoming north 5 to 15 knots by mid afternoon. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...North winds 5 to 15 knots veering south after midnight. Waves calm to 2 feet. .THURSDAY...South winds 10 to 20 knots backing southeast by mid afternoon. Waves calm to 2 feet. .THURSDAY NIGHT...South winds 15 to 25 knots backing southeast after midnight. Waves building to 2 to 4 feet. .FRIDAY...Southeast winds 20 to 30 knots increasing to gales to 35 knots. A chance of rain showers, then rain showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SATURDAY...South gales to 35 knots becoming north 20 to 30 knots. Rain showers. A chance of rain showers. Waves subsiding to 2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet. $$ LSZ261-231015- MAFOR 2303/ Superior West...GALE WARNING IN EFFECT...12520 11610 11730 11156 11150 11140 11130. A chance of snow showers Tuesday. Waves 2 to 3 feet overnight building to 6 to 10 feet Tuesday. Waves 5 to 8 feet Tuesday evening. Superior North Central...GALE WARNING IN EFFECT...11526 11520 11630 11840 13150 11140. A chance of snow showers Tuesday. Waves 2 to 4 feet overnight building to 9 to 13 feet Tuesday. Waves subsiding to 7 to 10 feet Tuesday evening. Superior South Central...GALE WARNING IN EFFECT...11426 11520 11510 11620 11840 13850. A chance of snow showers Tuesday afternoon and Tuesday evening. Waves 2 to 4 feet overnight building to 9 to 13 feet Tuesday and Tuesday evening. Superior East...GALE WARNING IN EFFECT...12436 11530 11520 11720 13150. A chance of snow showers Tuesday afternoon. Waves 2 to 5 feet overnight building to 7 to 11 feet Tuesday and Tuesday Waves evening. $$ JSS Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes ####018006349#### FZUS63 KMKX 230207 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 907 PM CDT Mon Apr 22 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... Gusty south to southwest winds will persist tonight into Tuesday as a low of 29.5 inches passes by just to the north of Wisconsin. Could see a few thunderstorms with the frontal passage on Tuesday. Expect gusty winds to turn more northerly through the afternoon tomorrow from north to south. There could be a short window of time with gale force winds later tomorrow evening into tomorrow night, especially across the southern half of the lake. Winds will begin to lighten up Wednesday through the second half of the week as high pressure builds to around 30.4 inches down across the upper Great Lakes. Southerly winds will then increase again heading into the weekend as another storm system approaches. LMZ261-362-364-366-563-565-567-868-230930- 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 Mon Apr 22 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TONIGHT...South winds to 30 kt becoming southwest. Rain showers through early evening, then chance of rain showers overnight. Waves 5 to 8 ft occasionally to 10 ft. .TUESDAY...Southwest winds 15 to 25 kt becoming northwest to 30 kt. Slight chance of rain showers in the morning, then rain showers likely with slight chance of thunderstorms in the afternoon. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft. .TUESDAY NIGHT...North winds to 30 kt. Chance of rain showers in the evening. Waves 4 to 7 ft occasionally to 9 ft building to 8 to 11 ft occasionally to 14 ft. .WEDNESDAY...Northeast winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to 8 ft. .WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming southeast. Waves 2 to 4 ft subsiding to 1 to 2 ft. .THURSDAY...South winds 10 to 15 kt. Waves 1 to 3 ft. .THURSDAY NIGHT...Southeast winds 10 to 15 kt increasing to 15 to 25 kt. Waves 1 to 3 ft building to 3 to 5 ft. .FRIDAY...Southeast winds to 30 kt. Chance of rain showers. Waves 4 to 7 ft occasionally to 9 ft. .SATURDAY...South gales to 35 kt. Showers. Waves 7 to 10 ft occasionally to 13 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-230930- 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 Mon Apr 22 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TONIGHT...South winds 15 to 25 kt becoming southwest to 30 kt. Chance of rain showers. Waves 4 to 6 ft occasionally to 8 ft building to 7 to 10 ft occasionally to 13 ft. .TUESDAY...Southwest winds to 30 kt. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft occasionally to 9 ft. .TUESDAY NIGHT...West winds to 30 kt becoming north. Chance of rain showers in the evening. Waves 4 to 7 ft occasionally to 9 ft building to 8 to 12 ft occasionally to 16 ft. .WEDNESDAY...North winds to 30 kt diminishing to 15 to 25 kt. Waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to 8 ft occasionally to 10 ft. .WEDNESDAY NIGHT...North winds 10 to 20 kt becoming east 5 to 10 kt overnight. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .THURSDAY...Southeast winds 10 to 15 kt increasing to 10 to 20 kt. Waves 2 to 4 ft. .THURSDAY NIGHT...East winds 10 to 20 kt becoming southeast 15 to 25 kt. Waves 2 to 4 ft building to 3 to 5 ft. .FRIDAY...Southeast winds to 30 kt. Rain showers likely. Waves 5 to 8 ft occasionally to 10 ft. .SATURDAY...South gales to 35 kt. Showers likely. Waves 7 to 10 ft occasionally to 13 ft. $$ LMZ761-230930- MAFOR 2304/ MICHIGAN NORTH 11446 12540 11530 11536 11636 11846 11840. Waves 5 to 8 feet overnight. Waves 5 to 8 feet subsiding to 3 to 6 feet Tuesday. Waves 5 to 8 feet Tuesday evening. MICHIGAN SOUTH 11440 14540 11540 11646 11740. Waves 3 to 6 feet building to 5 to 9 feet overnight. Waves 5 to 9 feet subsiding to 3 to 6 feet Tuesday. Waves 3 to 6 feet building to 5 to 8 feet Tuesday evening. $$ DDV Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes