FZUS63 KMQT 232107 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 407 PM EST Thu Jan 23 2020 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 trough over Lake Superior will generally fill in across Upper Michigan the rest of the afternoon, into the evening hours. A 30.4 inch high pressure over northern Ontario will continue to nudge slightly eastward tonight into Friday. A 29.8 inch low will develop in the Lower Mississippi Valley on Friday and lift northeastward across Lake Huron by late Saturday afternoon with weak troughing lingering behind it across Lake Superior into early next week. LSZ162-240515- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 407 PM EST Thu Jan 23 2020 /307 PM CST Thu Jan 23 2020/ .LATE THIS AFTERNOON...Northeast winds 20 to 30 knots. Snow likely and a chance of freezing drizzle. Waves 6 to 9 feet occasionally to 11 feet building to 7 to 10 feet occasionally to 13 feet. .TONIGHT...Northeast winds 20 to 30 knots diminishing to 15 to 25 knots late. A chance of freezing drizzle in the evening. Snow. Drizzle likely after midnight. Waves subsiding to 5 to 8 feet occasionally to 10 feet. .FRIDAY...Northeast winds 10 to 20 knots veering east by late morning, then backing northeast by mid afternoon. A chance of drizzle and snow. Waves subsiding to 2 to 4 feet. .FRIDAY NIGHT...Northeast winds 10 to 20 knots. A chance of drizzle and snow. Waves building to 3 to 5 feet occasionally to 7 feet. .SATURDAY...North winds 10 to 20 knots diminishing to 5 to 15 knots in the afternoon. A slight chance of snow. Waves subsiding to calm to 2 feet. .SATURDAY NIGHT...Northwest winds 5 to 15 knots veering north after midnight. Waves calm to 2 feet. .SUNDAY...North winds 5 to 15 knots becoming west less than 10 knots in the afternoon. Waves calm to 2 feet. .SUNDAY NIGHT...Southwest winds less than 10 knots. Waves calm to 2 feet. .MONDAY...West winds less than 10 knots becoming north 5 to 15 knots. Waves calm to 2 feet. .TUESDAY...North winds 5 to 15 knots veering east. Waves calm to 2 feet. $$ LSZ263-240515- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 407 PM EST Thu Jan 23 2020 .LATE THIS AFTERNOON...Northeast winds 20 to 30 knots. Snow likely, a chance of freezing drizzle and drizzle likely. Waves 6 to 9 feet occasionally to 11 feet building to 7 to 10 feet occasionally to 13 feet. .TONIGHT...Northeast winds 20 to 30 knots veering east by midnight, then diminishing to 15 to 25 knots late. Freezing drizzle likely in the evening. Snow and drizzle. Waves subsiding to 4 to 7 feet occasionally to 9 feet. .FRIDAY...East winds 10 to 20 knots. A chance of drizzle and snow. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .FRIDAY NIGHT...East winds 10 to 20 knots backing northeast by midnight, then increasing to 15 to 25 knots late. A chance of drizzle and snow. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet. .SATURDAY...Northeast winds 15 to 25 knots becoming north 10 to 20 knots in the afternoon. A chance of snow and drizzle. Waves subsiding to 1 to 3 feet. .SATURDAY NIGHT...North winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .SUNDAY...North winds 5 to 15 knots. Waves calm to 2 feet. .SUNDAY NIGHT...Northwest winds 5 to 15 knots veering north after midnight. Waves calm to 2 feet. .MONDAY...West winds 5 to 15 knots veering north. Waves calm to 2 feet. .TUESDAY...North winds 5 to 15 knots veering northeast. Waves calm to 2 feet. $$ LSZ264-240515- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 407 PM EST Thu Jan 23 2020 .LATE THIS AFTERNOON...Northeast winds 20 to 30 knots. A chance of freezing drizzle, drizzle likely and a chance of snow. Waves 5 to 8 feet occasionally to 10 feet. .TONIGHT...East winds 20 to 30 knots diminishing to 15 to 25 knots by midnight. A chance of freezing drizzle in the evening. Snow and drizzle. Waves subsiding to 4 to 7 feet occasionally to 9 feet. .FRIDAY...East winds 10 to 20 knots diminishing to 5 to 15 knots by mid afternoon. A chance of drizzle and snow. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .FRIDAY NIGHT...East winds 5 to 15 knots becoming northeast 10 to 20 knots by midnight. A chance of drizzle and snow. Waves subsiding to 2 to 4 feet. .SATURDAY...Northeast winds 10 to 20 knots becoming north 5 to 15 knots in the afternoon. Drizzle likely in the morning. A chance of snow. A slight chance of drizzle in the afternoon. Waves subsiding to 1 to 3 feet. .SATURDAY NIGHT...North winds 5 to 15 knots. A chance of snow. Waves subsiding to calm to 2 feet. .SUNDAY...North winds 5 to 15 knots. Waves calm to 2 feet. .SUNDAY NIGHT...North winds 5 to 15 knots diminishing to less than 10 knots after midnight. Waves calm to 2 feet. .MONDAY...North winds 5 to 15 knots. Waves calm to 2 feet. .TUESDAY...North winds 5 to 15 knots veering northeast. Waves calm to 2 feet. $$ LSZ265-240515- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 407 PM EST Thu Jan 23 2020 .LATE THIS AFTERNOON...East winds 10 to 20 knots. Snow. Waves 1 to 3 feet building to 2 to 4 feet. .TONIGHT...East winds 15 to 25 knots. Snow and drizzle. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .FRIDAY...East winds 15 to 25 knots diminishing to 10 to 20 knots. A chance of snow. A chance of drizzle in the afternoon. Waves subsiding to 2 to 4 feet. .FRIDAY NIGHT...East winds 15 to 25 knots diminishing to 10 to 20 knots by midnight, then backing northeast late. A chance of snow and drizzle in the evening, then snow and drizzle likely after midnight. Waves 2 to 4 feet. .SATURDAY...Northeast winds 10 to 20 knots backing north in the afternoon. Snow likely and a slight chance of drizzle. Waves subsiding to calm to 2 feet. .SATURDAY NIGHT...North winds 10 to 20 knots. A chance of snow. Waves calm to 2 feet. .SUNDAY...North winds 10 to 20 knots diminishing to 5 to 15 knots in the afternoon. Waves calm to 2 feet. .SUNDAY NIGHT...North winds 5 to 15 knots. Waves calm to 2 feet. .MONDAY...North winds 5 to 15 knots. Waves calm to 2 feet. .TUESDAY...North winds 10 to 20 knots diminishing to 5 to 15 knots. Waves calm to 2 feet. $$ LSZ266-240515- 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- 407 PM EST Thu Jan 23 2020 .LATE THIS AFTERNOON...East winds 15 to 25 knots. Snow likely, a chance of drizzle and freezing drizzle. Waves 4 to 7 feet occasionally to 9 feet. .TONIGHT...East winds 15 to 25 knots. A chance of freezing drizzle in the evening. Snow and drizzle. Waves 4 to 7 feet occasionally to 9 feet. .FRIDAY...East winds 15 to 25 knots. A chance of snow. A slight chance of drizzle in the afternoon. Waves subsiding to 2 to 4 feet. .FRIDAY NIGHT...East winds 15 to 25 knots backing northeast by midnight. A chance of snow and drizzle in the evening, then snow and drizzle likely after midnight. Waves 2 to 4 feet. .SATURDAY...Northeast winds 10 to 20 knots backing north in the afternoon. Snow and drizzle likely in the morning, then a chance of snow and a slight chance of drizzle in the afternoon. Waves subsiding to calm to 2 feet. .SATURDAY NIGHT...North winds 10 to 20 knots. A chance of snow and drizzle. Waves calm to 2 feet. .SUNDAY...North winds 10 to 20 knots. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .SUNDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves calm to 2 feet. .MONDAY...North winds 5 to 15 knots. Waves calm to 2 feet. .TUESDAY...North winds 10 to 20 knots becoming east 5 to 15 knots. Waves calm to 2 feet. $$ LSZ267-240515- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 407 PM EST Thu Jan 23 2020 .LATE THIS AFTERNOON...East winds 10 to 20 knots. Snow and drizzle likely. Waves calm to 2 feet. .TONIGHT...East winds 10 to 20 knots increasing to 15 to 25 knots by midnight. Drizzle and snow likely in the evening, then a chance of snow after midnight. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .FRIDAY...East winds 15 to 25 knots. A chance of snow. A slight chance of drizzle in the afternoon. Waves subsiding to 1 to 3 feet. .FRIDAY NIGHT...East winds 10 to 20 knots backing northeast by midnight. A chance of drizzle and snow in the evening, then drizzle with snow likely after midnight. Waves 1 to 3 feet. .SATURDAY...East winds 10 to 20 knots backing northeast in the afternoon. Snow likely in the morning. Drizzle likely. A chance of snow in the afternoon. Waves subsiding to calm to 2 feet. .SATURDAY NIGHT...North winds 10 to 20 knots. A chance of drizzle and snow. Waves calm to 2 feet. .SUNDAY...North winds 10 to 20 knots. A chance of drizzle in the morning. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet. .SUNDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves calm to 2 feet. .MONDAY...North winds 5 to 15 knots veering northeast. Waves calm to 2 feet. .TUESDAY...East winds 10 to 20 knots. Waves calm to 2 feet. $$ LSZ261-240515- MAFOR 2322/ Superior West 12147 12147 11137 11230 12220. A chance of light freezing drizzle this evening tonight. A chance of drizzle Friday. Waves 6 to 10 feet tonight. Waves 5 to 8 feet subsiding to 3 to 5 feet Friday. Superior North Central 11140 11247 13237 11227 12220. A chance of light freezing drizzle this evening tonight. A chance of drizzle Friday afternoon. Waves 4 to 8 feet tonight subsiding to 3 to 5 feet Friday. Superior South Central 14227 11325 13220. Waves 2 to 6 feet tonight and Friday. Superior East 13237 13230 12220. A chance of drizzle early this evening. Waves 1 to 3 feet building to 2 to 6 feet tonight and Friday. $$ JSS Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes