####018012972#### FZUS63 KMQT 180207 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 1007 PM EDT Sun Mar 17 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 29.4 inch low pressure located near New Brunswick continues shifting eastward through Monday as a 30.6 inch high pressure near Lake Winnipeg shifts south to the Central Plains while weakening to 30.4 inches. Across Lake Superior, 29.8 inch troughing across the far eastern lake shifts east as 30.2 inch ridging builds across the far western lake tonight. This ridging shifts southeast and weakens to 29.9 inches on Monday as a 29.6 inch low pressure approaches Lake Superior from the northwest. This low pressure tracks across the lake late Monday night and Tuesday with ridging building to at least 30.2 inches on Wednesday. Ridging continues southeast on Thursday while building to 30.4 inches over Lake Superior and may persist into Friday as well. LSZ162-181015- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 1007 PM EDT Sun Mar 17 2024 /907 PM CDT Sun Mar 17 2024/ .REST OF TONIGHT...North winds 20 to 30 knots diminishing to 15 to 25 knots late. Scattered snow showers. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 4 feet. .MONDAY...Northwest winds 15 to 25 knots becoming west 10 to 20 knots in the afternoon, then becoming southwest 15 to 25 knots late. Waves subsiding to calm to 2 feet, then building to 2 to 4 feet. .MONDAY NIGHT...Southwest winds 10 to 20 knots increasing to 15 to 25 knots after midnight, then becoming west 10 to 20 knots late. A chance of snow showers through midnight. Waves subsiding to 1 to 3 feet. .TUESDAY...Northwest winds 15 to 25 knots increasing to 20 to 30 knots by mid afternoon. Waves building to 4 to 7 feet occasionally to 9 feet. .TUESDAY NIGHT...Northwest 20 to 30 knots with a few gale force gusts to 35 knots possible. Freezing spray after midnight. Waves 4 to 7 feet occasionally to 9 feet. .WEDNESDAY...Northwest winds 20 to 30 knots. Heavy freezing spray through early afternoon. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .WEDNESDAY NIGHT...Northwest winds 15 to 25 knots becoming north 10 to 20 knots after midnight. Waves subsiding to calm to 2 feet. .THURSDAY...North winds 10 to 20 knots veering northeast. Waves calm to 2 feet. .FRIDAY...North winds 10 to 20 knots. Waves calm to 2 feet. $$ LSZ263-181015- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 1007 PM EDT Sun Mar 17 2024 .REST OF TONIGHT...North winds 20 to 30 knots diminishing to 15 to 25 knots late. Freezing spray. Scattered snow showers. Waves 5 to 9 feet occasionally to 11 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .MONDAY...North winds 10 to 20 knots backing west in the afternoon. Scattered snow showers through early afternoon. Waves subsiding to 1 to 3 feet, then building to 2 to 4 feet. .MONDAY NIGHT...Southwest winds 10 to 20 knots diminishing to 5 to 15 knots late. A chance of snow showers. Waves building to 2 to 4 feet. .TUESDAY...Northwest winds 15 to 25 knots increasing to 20 to 30 knots by mid afternoon. Waves building to 4 to 7 feet occasionally to 9 feet. .TUESDAY NIGHT...Northwest gales to 35 knots. Freezing spray after midnight. Waves building to 8 to 11 feet occasionally to 14 feet. .WEDNESDAY...Northwest gales to 35 knots diminishing to 20 to 30 knots by mid afternoon. Heavy freezing spray through early afternoon. Waves subsiding to 4 to 7 feet occasionally to 9 feet. .WEDNESDAY NIGHT...Northwest winds 15 to 25 knots becoming north 10 to 20 knots after midnight. Waves subsiding to 1 to 3 feet. .THURSDAY...Northwest winds 10 to 20 knots becoming east 5 to 15 knots. Waves subsiding to calm to 2 feet. .FRIDAY...North winds 5 to 15 knots increasing to 10 to 20 knots. Waves calm to 2 feet. $$ LSZ264-181015- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 1007 PM EDT Sun Mar 17 2024 ...GALE WARNING IN EFFECT UNTIL 2 AM EDT MONDAY... ...GALE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .REST OF TONIGHT...North gales to 35 knots diminishing to 20 to 30 knots late. Freezing spray. Scattered snow showers. Waves 8 to 11 feet occasionally to 14 feet subsiding to 4 to 7 feet occasionally to 9 feet. .MONDAY...North winds 15 to 25 knots becoming northwest 10 to 20 knots in the afternoon, then backing west late. Freezing spray through early afternoon. Scattered snow showers through early afternoon. Waves subsiding to 1 to 3 feet. .MONDAY NIGHT...West winds 10 to 20 knots backing southwest after midnight, then diminishing to 5 to 15 knots late. A chance of snow showers. Waves building to 2 to 4 feet. .TUESDAY...West winds 15 to 25 knots veering northwest by mid afternoon. A slight chance of snow showers. Waves building to 3 to 6 feet occasionally to 8 feet. .TUESDAY NIGHT...Northwest gales to 35 knots becoming north gales to 40 knots after midnight. Heavy freezing spray. Waves building to 11 to 15 feet occasionally to 19 feet. .WEDNESDAY...Northwest gales to 40 knots. Heavy freezing spray. Waves subsiding to 6 to 9 feet occasionally to 11 feet. .WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to 15 to 25 knots after midnight. Freezing spray through midnight. Waves subsiding to 2 to 4 feet. .THURSDAY...Northwest winds 10 to 20 knots becoming north 5 to 15 knots. Waves subsiding to calm to 2 feet. .FRIDAY...Northwest winds 5 to 15 knots increasing to 10 to 20 knots. Waves building to 1 to 3 feet. $$ LSZ265-181015- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 1007 PM EDT Sun Mar 17 2024 ...GALE WARNING IN EFFECT UNTIL 2 AM EDT MONDAY... ...GALE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .REST OF TONIGHT...North gales to 35 knots diminishing to 20 to 30 knots late. Freezing spray. Numerous snow showers by late evening. Scattered snow showers after midnight. Waves 8 to 11 feet occasionally to 14 feet subsiding to 6 to 9 feet occasionally to 11 feet. .MONDAY...North winds 15 to 25 knots backing west late. Freezing spray through early afternoon. Scattered snow showers through early afternoon. Waves subsiding to 2 to 4 feet. .MONDAY NIGHT...West winds 10 to 20 knots backing southwest after midnight. A chance of snow showers. Waves subsiding to calm to 2 feet. .TUESDAY...West winds 10 to 20 knots becoming northwest 20 to 30 knots by mid afternoon. A slight chance of snow showers. Waves building to 2 to 4 feet. .TUESDAY NIGHT...Northwest gales to 35 knots. A chance of snow showers. Freezing spray after midnight. Waves building to 8 to 11 feet occasionally to 14 feet. .WEDNESDAY...Northwest gales to 40 knots. Heavy freezing spray. A chance of snow showers. Waves building to 9 to 12 feet occasionally to 15 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. .WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to 15 to 25 knots after midnight. Freezing spray through midnight. Waves subsiding to 2 to 4 feet. .THURSDAY...Northwest winds 10 to 20 knots veering east. Waves subsiding to calm to 2 feet. .FRIDAY...Northwest winds 10 to 20 knots. Waves calm to 2 feet. $$ LSZ266-181015- 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 Sun Mar 17 2024 ...GALE WARNING IN EFFECT UNTIL 2 AM EDT MONDAY... ...GALE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .REST OF TONIGHT...North gales to 35 knots. Freezing spray. Scattered snow showers. Waves 10 to 14 feet occasionally to 18 feet subsiding to 7 to 10 feet occasionally to 13 feet. .MONDAY...North winds 20 to 30 knots backing northwest in the afternoon, then diminishing to 15 to 25 knots late. Freezing spray. Scattered snow showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .MONDAY NIGHT...West winds 10 to 20 knots backing southwest after midnight. A chance of snow showers. Waves subsiding to 1 to 3 feet, then building to 2 to 4 feet. .TUESDAY...Southwest winds 10 to 20 knots becoming northwest 15 to 25 knots by mid afternoon. A chance of snow showers. Waves subsiding to 1 to 3 feet, then building to 3 to 6 feet occasionally to 8 feet. .TUESDAY NIGHT...Northwest gales to 40 knots. A chance of snow showers. Freezing spray after midnight. Waves building to 12 to 17 feet occasionally to 21 feet. .WEDNESDAY...Northwest gales to 45 knots. Heavy freezing spray. A chance of snow showers. Waves building to 15 to 20 feet occasionally to 25 feet, then subsiding to 11 to 15 feet occasionally to 19 feet. .WEDNESDAY NIGHT...Northwest gales to 35 knots diminishing to 15 to 25 knots after midnight. Freezing spray. A chance of snow showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet. .THURSDAY...Northwest winds 10 to 20 knots veering north. Waves subsiding to calm to 2 feet. .FRIDAY...Northwest winds 10 to 20 knots. Waves building to 1 to 3 feet. $$ LSZ267-181015- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 1007 PM EDT Sun Mar 17 2024 ...GALE WARNING IN EFFECT UNTIL 2 AM EDT MONDAY... ...GALE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... .REST OF TONIGHT...North gales to 35 knots diminishing to 20 to 30 knots late. Scattered snow showers. Freezing spray after midnight. Waves 7 to 10 feet occasionally to 13 feet subsiding to 4 to 7 feet occasionally to 9 feet. .MONDAY...North winds 20 to 30 knots becoming northwest 15 to 25 knots in the afternoon. Freezing spray through early afternoon. Scattered snow showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .MONDAY NIGHT...Northwest winds 15 to 25 knots becoming west 10 to 20 knots after midnight, then backing southwest late. A chance of snow showers. Waves subsiding to 1 to 3 feet. .TUESDAY...Southwest winds 10 to 20 knots becoming west 15 to 25 knots by mid afternoon. A chance of snow showers. Waves building to 2 to 4 feet. .TUESDAY NIGHT...Northwest winds 20 to 30 knots increasing to gales to 40 knots after midnight. A chance of snow showers through midnight, then snow showers likely after midnight. Freezing spray after midnight. Waves building to 12 to 17 feet occasionally to 21 feet. .WEDNESDAY...Northwest gales to 45 knots. Heavy freezing spray. Snow showers likely through early afternoon. A chance of snow showers by mid afternoon. Waves building to 15 to 20 feet occasionally to 25 feet, then subsiding to 11 to 15 feet occasionally to 19 feet. .WEDNESDAY NIGHT...Northwest gales to 35 knots becoming north 20 to 30 knots after midnight. Heavy freezing spray. A chance of snow showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet. .THURSDAY...Northwest winds 15 to 25 knots becoming north 10 to 20 knots. A chance of snow showers. Waves subsiding to calm to 2 feet. .FRIDAY...Northwest winds 10 to 20 knots veering north. Waves building to 1 to 3 feet. $$ LSZ261-181015- MAFOR 1803/ Superior West 12830 11820 12720 11630 12530. Waves 3 to 6 feet overnight. Waves 2 to 5 feet Monday and Monday evening. Superior North Central...GALE WARNING IN EFFECT...11851 13840 11730 11720 12620. A chance of snow showers Monday evening. Waves 7 to 11 feet subsiding to 6 to 9 feet overnight. Waves 5 to 8 feet subsiding to 2 to 4 feet Monday. Waves 1 to 4 feet Monday evening. Superior South Central...GALE WARNING IN EFFECT...11857 12847 11830 19837 11731 19737 11731 12620. Waves 8 to 12 feet overnight. Waves 5 to 9 feet subsiding to 3 to 6 feet Monday. Waves 3 to 5 feet subsiding to 2 to 4 feet Monday evening. Superior East...GALE WARNING IN EFFECT...11841 19847 11841 11840 12830 13730. Waves 6 to 10 feet overnight. Waves 4 to 7 feet subsiding to 3 to 6 feet Monday. Waves 3 to 5 feet Monday evening. $$ EK Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes