####018009874#### FZUS63 KMQT 061336 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 936 AM EDT Mon May 6 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 30.1 inch ridge over the Great Lakes shifts east today as a broad 29.1 inch low pressure develops on the Northern Plains. A strong pressure gradient over western Lake Superior begins to set up Tuesday morning as a 29.1 inch low pushes eastward against 30.0 inch ridging over far northern Ontario. This gradient loosens into Wednesday as the Northern Plains low weakens and a 29.5 and a 29.4 inch low ejecting out of the Plains move south of Lake Superior. After a brief window of height rises late in the day Wednesday, another 29.4 inch low moves from the Central Plains into the Lower Great Lakes early Thursday. Weak 30.0 inch ridging briefly builds in Thursday night through early Friday before another 29.7 inch low pressure trough drops through later in the day. LSZ162-062145- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 936 AM EDT Mon May 6 2024 /836 AM CDT Mon May 6 2024/ .REST OF TODAY...East winds 5 to 15 knots increasing to 15 to 25 knots. Waves calm to 2 feet building to 3 to 5 feet occasionally to 7 feet. .TONIGHT...East winds 10 to 20 knots increasing to 15 to 25 knots late. Waves 2 to 4 feet. .TUESDAY...East winds 20 to 30 knots diminishing to 15 to 25 knots late. A chance of rain showers through early afternoon, then rain showers likely by mid afternoon. Waves building to 8 to 11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet occasionally to 11 feet. .TUESDAY NIGHT...Northeast winds 15 to 25 knots diminishing to 10 to 20 knots after midnight. Rain showers likely through midnight, then a chance of rain showers after midnight. Waves subsiding to 1 to 3 feet. .WEDNESDAY...Northeast winds 10 to 20 knots increasing to 15 to 25 knots by mid afternoon. A chance of rain showers. Waves building to 5 to 8 feet occasionally to 10 feet. .WEDNESDAY NIGHT...Northeast winds 15 to 25 knots increasing to 20 to 30 knots after midnight. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet. .THURSDAY...Northeast winds 15 to 25 knots becoming west 10 to 20 knots. Waves subsiding to calm to 2 feet. .FRIDAY...Southwest winds 10 to 20 knots veering west. Waves calm to 2 feet. $$ LSZ263-062145- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 936 AM EDT Mon May 6 2024 .REST OF TODAY...East winds 5 to 15 knots increasing to 10 to 20 knots late. Waves calm to 2 feet building to 1 to 3 feet. .TONIGHT...East winds 10 to 20 knots diminishing to 5 to 15 knots after midnight, then increasing to 10 to 20 knots late. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. .TUESDAY...East winds 10 to 20 knots increasing to 15 to 25 knots in the afternoon. A slight chance of rain showers through early afternoon, then rain showers likely by mid afternoon. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .TUESDAY NIGHT...East winds 10 to 20 knots backing northeast after midnight. Rain showers likely through midnight, then a chance of rain showers after midnight. Waves subsiding to 2 to 4 feet. .WEDNESDAY...Northeast winds 15 to 25 knots diminishing to 10 to 20 knots by mid afternoon. A chance of rain showers. Waves building to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY NIGHT...Northeast winds 15 to 25 knots. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet. .THURSDAY...Northeast winds 15 to 25 knots becoming northwest 5 to 15 knots. Waves subsiding to 1 to 3 feet. .FRIDAY...Southwest winds 5 to 15 knots veering west. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. $$ LSZ264-062145- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 936 AM EDT Mon May 6 2024 .REST OF TODAY...South winds 5 to 15 knots backing east late. Waves calm to 2 feet. .TONIGHT...East winds 5 to 15 knots veering southeast after midnight. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .TUESDAY...East winds 10 to 20 knots increasing to 15 to 25 knots in the afternoon. A chance of rain showers by mid afternoon. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .TUESDAY NIGHT...East winds 5 to 15 knots becoming northeast 15 to 25 knots after midnight. A chance of rain showers. Waves 2 to 4 feet. .WEDNESDAY...Northeast winds 15 to 25 knots diminishing to 10 to 20 knots by mid afternoon. A chance of rain showers. Waves subsiding to 1 to 3 feet. .WEDNESDAY NIGHT...Northeast winds 15 to 25 knots. Waves building to 3 to 5 feet occasionally to 7 feet. .THURSDAY...North winds 15 to 25 knots becoming northwest 5 to 15 knots. Waves subsiding to 1 to 3 feet. .FRIDAY...Southwest winds 5 to 15 knots backing south. Waves 1 to 3 feet. $$ LSZ265-062145- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 936 AM EDT Mon May 6 2024 .REST OF TODAY...East winds 5 to 15 knots increasing to 10 to 20 knots late. Waves calm to 2 feet. .TONIGHT...East winds 10 to 20 knots veering southeast after midnight. Waves calm to 2 feet. .TUESDAY...East winds 10 to 20 knots increasing to 15 to 25 knots in the afternoon, then diminishing to 10 to 20 knots late. Rain showers likely by mid afternoon. Waves building to 1 to 3 feet. .TUESDAY NIGHT...East winds 10 to 20 knots becoming northeast 5 to 15 knots after midnight. Rain showers likely. Waves subsiding to calm to 2 feet. .WEDNESDAY...Northeast winds 10 to 20 knots. A chance of rain showers. Waves calm to 2 feet. .WEDNESDAY NIGHT...Northeast winds 10 to 20 knots increasing to 15 to 25 knots after midnight. Waves building to 2 to 4 feet. .THURSDAY...North winds 15 to 25 knots becoming northwest 10 to 20 knots. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 1 to 3 feet. .FRIDAY...West winds 10 to 20 knots backing south. Waves subsiding to calm to 2 feet. $$ LSZ266-062145- 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- 936 AM EDT Mon May 6 2024 .REST OF TODAY...Southeast winds 5 to 15 knots becoming east 10 to 20 knots late. Waves calm to 2 feet. .TONIGHT...East winds 10 to 20 knots becoming southeast 5 to 15 knots after midnight. Waves calm to 2 feet. .TUESDAY...East winds 10 to 20 knots increasing to 15 to 25 knots in the afternoon, then diminishing to 10 to 20 knots late. A chance of rain showers by mid afternoon. Waves building to 2 to 4 feet. .TUESDAY NIGHT...East winds 10 to 20 knots. Rain showers likely. Waves subsiding to 1 to 3 feet. .WEDNESDAY...Northeast winds 15 to 25 knots diminishing to 10 to 20 knots by mid afternoon. A chance of rain showers. Waves subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Northeast winds 15 to 25 knots. Waves building to 2 to 4 feet. .THURSDAY...North winds 15 to 25 knots. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .FRIDAY...Northwest winds 10 to 20 knots backing south. Waves subsiding to 1 to 3 feet. $$ LSZ267-062145- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 936 AM EDT Mon May 6 2024 .REST OF TODAY...Southeast winds 5 to 15 knots backing east in the afternoon, then increasing to 10 to 20 knots late. Waves calm to 2 feet. .TONIGHT...East winds 5 to 15 knots veering southeast after midnight, then increasing to 10 to 20 knots late. Waves calm to 2 feet. .TUESDAY...East winds 10 to 20 knots increasing to 15 to 25 knots late. A chance of rain showers by mid afternoon. Waves building to 2 to 4 feet. .TUESDAY NIGHT...Southeast winds 10 to 20 knots backing east after midnight. Rain showers likely. Waves subsiding to calm to 2 feet. .WEDNESDAY...Northeast winds 10 to 20 knots. A chance of rain showers. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .WEDNESDAY NIGHT...Northeast winds 10 to 20 knots increasing to 15 to 25 knots after midnight. Waves building to 2 to 4 feet. .THURSDAY...North winds 15 to 25 knots diminishing to 10 to 20 knots. Waves 2 to 4 feet. .FRIDAY...Northwest winds 10 to 20 knots backing south. Waves subsiding to 1 to 3 feet. $$ LSZ261-062145- MAFOR 0615/ Superior West 11210 15220 11230. Waves 1 to 3 feet this afternoon. Waves 2 to 4 feet tonight. Waves 3 to 6 feet Tuesday morning. Superior North Central 12310 12210 11320 12310 11220. Waves 1 foot or less this afternoon. Waves 1 to 3 feet tonight and Tuesday morning. Superior South Central 11300 12210 11320 14310. Waves 1 foot or less this afternoon. Waves 1 to 3 feet tonight and Tuesday morning. Superior East 11300 11200 12210 11310 12300 11210. Waves 2 feet or less. $$ 07 Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes