Expires:202101172300;;058990 FZUS63 KMQT 171456 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 956 AM EST Sun Jan 17 2021 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 29.9 inch surface trough will linger over Lake Superior through Monday. On Monday night, a weak 29.8 inch low will develop over eastern Lake Superior. A 30.2 inch low over North Dakota Tuesday morning will drop southeast into the upper Mississippi River Valley on Tuesday evening. A broad 29.2 inch low over northern Saskatchewan Wednesday morning will move southeast into Ontario by Thursday while weakening to 29.4 inches. LSZ162-172300- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 956 AM EST Sun Jan 17 2021 /856 AM CST Sun Jan 17 2021/ .REST OF TODAY...North winds 10 to 20 knots diminishing to 5 to 15 knots. Flurries. Waves 1 to 3 feet subsiding to calm to 2 feet. .TONIGHT...Northwest winds 5 to 15 knots veering north by midnight, then backing northwest late. Scattered snow showers. Waves calm to 2 feet. .MONDAY...Northwest winds 10 to 20 knots. A chance of snow showers. Waves calm to 2 feet. .MONDAY NIGHT...North winds 15 to 25 knots backing northwest after midnight. A chance of snow showers. Waves building to 1 to 3 feet. .TUESDAY...Northwest winds 10 to 20 knots backing west in the afternoon. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. .TUESDAY NIGHT...West winds 10 to 20 knots. Waves 1 to 3 feet. .WEDNESDAY...Southwest winds 20 to 30 knots veering west. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .THURSDAY...West winds 15 to 25 knots veering northwest. Freezing spray. Waves subsiding to 3 to 5 feet occasionally to 7 feet. $$