####018012222#### FZUS63 KMQT 160752 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 352 AM EDT Tue Apr 16 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 30.3 inch high over western Hudson Bay is currently extending a 30.1 inch ridge over Lake Superior. This morning, as the high sags south to far northern Ontario, the high will build to 30.4 inches, extending a 30.3 inch ridge over the lake. Meanwhile, a 29.2 inch low pressure over Nebraska this morning will track northeast to Wisconsin on Wednesday while weakening to 29.5 inches. The low weakens further to 29.7 inches as it tracks east across Lower Michigan Wednesday night before merging with another 29.7 inch low pressure over northern Ontario. This low moves into the eastern James Bay Friday night into Saturday, deepening to 29.3 inches. Meanwhile, a 30.4 inch high pressure ridge builds southeast into the Northern Plains extending weak 30.0 inch ridging across the western lake. Ridging over the lake builds to 30.1 inches Saturday. LSZ162-161600- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 352 AM EDT Tue Apr 16 2024 /252 AM CDT Tue Apr 16 2024/ ...GALE WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS AFTERNOON THROUGH WEDNESDAY AFTERNOON... .EARLY THIS MORNING...East winds 10 to 20 knots. Waves 1 to 3 feet building to 2 to 4 feet. .TODAY...Northeast winds 15 to 25 knots increasing to gales to 45 knots in the afternoon. A chance of rain showers by mid afternoon. Waves building to 10 to 14 feet occasionally to 18 feet. .TONIGHT...East gales to 40 knots. Rain showers. Waves building to 11 to 15 feet occasionally to 19 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. .WEDNESDAY...Northeast gales to 35 knots diminishing to 20 to 30 knots in the afternoon. Rain showers. Waves building to 9 to 12 feet occasionally to 15 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. .WEDNESDAY NIGHT...Northwest winds 15 to 25 knots backing west after midnight. Rain showers likely through midnight, then a slight chance of rain showers after midnight. Waves subsiding to 2 to 4 feet. .THURSDAY...West winds 15 to 25 knots. Waves subsiding to 1 to 3 feet, then building to 3 to 6 feet occasionally to 8 feet. .THURSDAY NIGHT...West winds 15 to 25 knots. Waves subsiding to 2 to 4 feet. .FRIDAY...West winds 20 to 30 knots. A chance of rain showers. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .SATURDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots. Waves subsiding to calm to 2 feet. $$ LSZ263-161600- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 352 AM EDT Tue Apr 16 2024 ...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY AFTERNOON... .EARLY THIS MORNING...East winds 10 to 20 knots. Waves calm to 2 feet. .TODAY...East winds 10 to 20 knots increasing to 20 to 30 knots with a fe gale force gusts to 35 knots possible. Waves building to 8 to 11 feet occasionally to 14 feet. .TONIGHT...East gales to 40 knots. A chance of rain showers through midnight, then rain showers after midnight. Waves building to 9 to 12 feet occasionally to 15 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. .WEDNESDAY...East gales to 40 knots. A chance of rain showers through early afternoon, then rain showers by mid afternoon. Waves building to 12 to 17 feet occasionally to 21 feet, then subsiding to 10 to 14 feet occasionally to 18 feet. .WEDNESDAY NIGHT...Northwest winds 20 to 30 knots becoming west 15 to 25 knots after midnight. Rain showers likely through midnight, then a slight chance of rain showers after midnight. Waves subsiding to 2 to 4 feet. .THURSDAY...West winds 15 to 25 knots. Waves building to 3 to 5 feet occasionally to 7 feet. .THURSDAY NIGHT...West winds 15 to 25 knots. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet. .FRIDAY...West winds 20 to 30 knots diminishing to 15 to 25 knots. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. .SATURDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots. Waves subsiding to 1 to 3 feet. $$ LSZ264-161600- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 352 AM EDT Tue Apr 16 2024 ...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY EVENING... .EARLY THIS MORNING...Northeast winds 10 to 20 knots. Waves calm to 2 feet. .TODAY...East winds 10 to 20 knots increasing to 15 to 25 knots in the afternoon. Waves building to 3 to 6 feet occasionally to 8 feet. .TONIGHT...East winds 20 to 30 knots increasing to gales to 40 knots. A slight chance of rain showers through midnight, then rain showers after midnight. Waves building to 10 to 14 feet occasionally to 18 feet. .WEDNESDAY...East gales to 45 knots. Rain showers. Waves building to 12 to 17 feet occasionally to 21 feet, then subsiding to 10 to 14 feet occasionally to 18 feet. .WEDNESDAY NIGHT...East winds 20 to 30 knots becoming west 15 to 25 knots after midnight. Rain showers through midnight, then a chance of rain showers after midnight. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .THURSDAY...West winds 15 to 25 knots backing southwest by mid afternoon. Waves 3 to 5 feet occasionally to 7 feet. .THURSDAY NIGHT...West winds 10 to 20 knots increasing to 15 to 25 knots after midnight. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet. .FRIDAY...West winds 20 to 30 knots diminishing to 15 to 25 knots. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SATURDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots. Waves subsiding to 1 to 3 feet. $$ LSZ265-161600- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 352 AM EDT Tue Apr 16 2024 ...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY EVENING... .EARLY THIS MORNING...Northeast winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...East winds 5 to 15 knots increasing to 20 to 30 knots. Waves building to 3 to 6 feet occasionally to 8 feet. .TONIGHT...East winds 20 to 30 knots increasing to gales to 35 knots. A slight chance of rain showers through midnight, then rain showers after midnight. Waves building to 9 to 12 feet occasionally to 15 feet. .WEDNESDAY...East gales to 35 knots. Rain showers. Waves building to 10 to 14 feet occasionally to 18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. .WEDNESDAY NIGHT...East winds 10 to 20 knots becoming west 15 to 25 knots after midnight. Rain showers likely through midnight, then a slight chance of rain showers after midnight. Waves subsiding to 2 to 4 feet. .THURSDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots by mid afternoon. Waves subsiding to calm to 2 feet. .THURSDAY NIGHT...West winds 10 to 20 knots increasing to 15 to 25 knots after midnight. Waves building to 1 to 3 feet. .FRIDAY...West winds 20 to 30 knots. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. .SATURDAY...Northwest winds 20 to 30 knots becoming west 15 to 25 knots. Waves subsiding to calm to 2 feet. $$ LSZ266-161600- 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- 352 AM EDT Tue Apr 16 2024 ...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY EVENING... .EARLY THIS MORNING...Northeast winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...East winds 5 to 15 knots increasing to 15 to 25 knots in the afternoon. Waves building to 3 to 5 feet occasionally to 7 feet. .TONIGHT...East winds 20 to 30 knots increasing to gales to 40 knots. Rain showers after midnight. Waves building to 10 to 14 feet occasionally to 18 feet. .WEDNESDAY...East gales to 45 knots. Rain showers. Waves building to 12 to 17 feet occasionally to 21 feet, then subsiding to 10 to 14 feet occasionally to 18 feet. .WEDNESDAY NIGHT...Southeast gales to 35 knots becoming west 15 to 25 knots after midnight. Rain showers through midnight, then a chance of rain showers after midnight. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet. .THURSDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots by mid afternoon. Waves subsiding to 2 to 4 feet. .THURSDAY NIGHT...Southwest winds 10 to 20 knots becoming west 15 to 25 knots after midnight. A chance of rain showers. Waves 2 to 4 feet. .FRIDAY...West winds 15 to 25 knots increasing to gales to 35 knots. Waves building to 4 to 8 feet occasionally to 10 feet. .SATURDAY...Northwest winds 20 to 30 knots becoming west 15 to 25 knots. Waves subsiding to 1 to 3 feet. $$ LSZ267-161600- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 352 AM EDT Tue Apr 16 2024 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY EVENING... .EARLY THIS MORNING...Northeast winds 5 to 15 knots. Waves calm to 2 feet. .TODAY...East winds 5 to 15 knots backing northeast in the afternoon, then increasing to 10 to 20 knots late. Waves building to 1 to 3 feet. .TONIGHT...East winds 15 to 25 knots increasing to 20 to 30 knots after midnight, then becoming southeast gales to 40 knots late. Rain showers after midnight. Waves building to 7 to 10 feet occasionally to 13 feet. .WEDNESDAY...Southeast gales to 40 knots. Rain showers. Waves building to 10 to 14 feet occasionally to 18 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. .WEDNESDAY NIGHT...Southeast gales to 40 knots becoming west 15 to 25 knots after midnight. Rain showers. Waves subsiding to 1 to 3 feet. .THURSDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots by mid afternoon. A chance of rain showers. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .THURSDAY NIGHT...Southwest winds 10 to 20 knots veering west after midnight. A chance of rain showers. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. .FRIDAY...West winds 15 to 25 knots increasing to 20 to 30 knots. A chance of rain showers. Waves building to 4 to 8 feet occasionally to 10 feet. .SATURDAY...Northwest winds 20 to 30 knots becoming west 15 to 25 knots. Waves subsiding to 1 to 3 feet. $$ LSZ261-161600- MAFOR 1609/ Superior West...GALE WARNING IN EFFECT...11220 11230 11140 12150 11250 12256. Waves 1 to 3 feet building to 8 to 11 feet today. Waves 10 to 14 feet tonight. Superior North Central...GALE WARNING IN EFFECT...11120 11220 13230 11240 12250. A chance of rain showers overnight. Waves 2 feet or less building to 2 to 4 feet today. Waves 3 to 5 feet building to 8 to 12 feet tonight. Superior South Central...GALE WARNING IN EFFECT...11110 11210 11220 11230 13240 11256. Waves 1 to 4 feet today. Waves 5 to 8 feet building to 6 to 9 feet tonight. Superior East...GALE WARNING IN EFFECT...12110 11210 11120 11220 12240 11250. A chance of showers overnight. Waves 1 to 2 feet today building to 5 to 9 feet tonight. $$ GS Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes