FZUS63 KMQT 222050 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 350 PM EST Fri Feb 22 2019 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...High pressure of 30.4 inches over the Great Lakes will pass through New England and into the North Atlantic by Saturday evening. Low pressure of 29.5 inches developing over the Oklahoma Panhandle Saturday morning will strengthen to 29.2 inches as it moves across northern Lake Superior late Saturday night. The low will continue to track northeast and deepen further to 28.8 inches as it treks to Quebec by Sunday afternoon. A 30.5 inch ridge follows over the Upper Great Lakes by late Monday. Look a quick 30.0 inch low to cross lower Lake Michigan over night on Tuesday as another 30.3 inch ridge moves in on Wednesday. LSZ162-230500- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 350 PM EST Fri Feb 22 2019 /250 PM CST Fri Feb 22 2019/ ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...Southwest winds 5 to 15 knots. .TONIGHT...Southwest winds 5 to 15 knots becoming south less than 10 knots by midnight, then becoming east 5 to 15 knots late. A chance of snow in the evening, then snow likely after midnight. .SATURDAY...East winds 5 to 15 knots. Snow likely in the morning, then a chance of snow, areas of drizzle and freezing drizzle in the afternoon. .SATURDAY NIGHT...Northeast winds 10 to 20 knots becoming north 15 to 25 knots late. A chance of freezing rain in the evening. Snow. Patchy blowing snow after midnight. .SUNDAY...Northwest gales to 40 knots. Patchy blowing snow. A chance of snow. .SUNDAY NIGHT...Northwest gales to 35 knots diminishing to 10 to 20 knots after midnight. Patchy blowing snow in the evening. A chance of snow. .MONDAY...West winds 10 to 20 knots. .MONDAY NIGHT...West winds 5 to 15 knots. .TUESDAY...West winds 5 to 15 knots. A chance of snow. .WEDNESDAY...West winds 10 to 20 knots. A chance of snow. Note, waves omitted for mostly ice covered areas. $$ LSZ263-230500- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 350 PM EST Fri Feb 22 2019 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...Southwest winds 5 to 15 knots. .TONIGHT...Southwest winds 5 to 15 knots becoming south less than 10 knots by midnight, then backing east late. A chance of snow in the evening, then snow likely after midnight. .SATURDAY...East winds 5 to 15 knots veering southeast by late morning, then backing east by mid afternoon. Snow likely. Areas of drizzle and widespread freezing drizzle in the afternoon. .SATURDAY NIGHT...East winds 10 to 20 knots backing northeast by midnight, then becoming north 15 to 25 knots late. Snow likely in the evening, then snow after midnight. Patchy blowing snow after midnight. .SUNDAY...Northwest gales to 40 knots. Areas of blowing snow. Snow. .SUNDAY NIGHT...Northwest gales to 40 knots diminishing to 15 to 25 knots after midnight. Patchy blowing snow. Snow likely in the evening. A chance of snow after midnight. .MONDAY...West winds 10 to 20 knots. A chance of snow. .MONDAY NIGHT...West winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. .TUESDAY...West winds 5 to 15 knots. A chance of snow. .WEDNESDAY...West winds 10 to 20 knots. A chance of snow. Note, waves omitted for mostly ice covered areas. $$ LSZ264-230500- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 350 PM EST Fri Feb 22 2019 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...Southwest winds 5 to 15 knots. .TONIGHT...Southwest winds 5 to 15 knots backing south late. A chance of snow. .SATURDAY...Southeast winds 5 to 15 knots increasing to 15 to 25 knots. Snow likely. Areas of drizzle and freezing drizzle in the afternoon. .SATURDAY NIGHT...East winds 15 to 25 knots becoming northeast 20 to 30 knots late. Areas of blowing snow. Snow. .SUNDAY...North gales to 45 knots. Blowing snow. Snow. .SUNDAY NIGHT...Northwest gales to 40 knots. Blowing snow in the evening, then patchy blowing snow after midnight. Snow likely in the evening, then a chance of snow after midnight. Visibility one quarter mile or less at times in the evening. .MONDAY...Northwest winds 15 to 25 knots backing west in the afternoon. Patchy blowing snow in the morning. A chance of snow. .MONDAY NIGHT...West winds 15 to 25 knots becoming northwest 10 to 20 knots after midnight. .TUESDAY...West winds 10 to 20 knots backing southwest. A chance of snow. .WEDNESDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots. A chance of snow. Note, waves omitted for mostly ice covered areas. $$ LSZ265-230500- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 350 PM EST Fri Feb 22 2019 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...Southwest winds less than 10 knots. .TONIGHT...Southwest winds less than 10 knots backing south by midnight, then becoming southeast 5 to 15 knots late. A chance of snow in the evening, then snow likely after midnight. .SATURDAY...Southeast winds 5 to 15 knots increasing to 15 to 25 knots. Snow. .SATURDAY NIGHT...East winds 20 to 30 knots diminishing to 15 to 25 knots by midnight, then backing northeast late. Patchy blowing snow. Snow. .SUNDAY...North gales to 40 knots becoming northwest gales to 45 knots in the afternoon. Blowing snow. Snow. Visibility one quarter mile or less at times in the afternoon. .SUNDAY NIGHT...Northwest gales to 40 knots. Blowing snow. Snow in the evening. A chance of snow after midnight. Visibility one quarter mile or less at times in the evening. .MONDAY...Northwest winds 15 to 25 knots becoming west 20 to 30 knots in the afternoon. Patchy blowing snow. A chance of snow. .MONDAY NIGHT...West winds 15 to 25 knots becoming northwest 10 to 20 knots after midnight. A chance of snow. .TUESDAY...West winds 10 to 20 knots. A chance of snow. .WEDNESDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots. Patchy blowing snow. A chance of snow. Note, waves omitted for mostly ice covered areas. $$ LSZ266-230500- 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- 350 PM EST Fri Feb 22 2019 ...STORM WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...Southwest winds 5 to 15 knots. Waves calm to 2 feet. .TONIGHT...Southwest winds 5 to 15 knots backing south late. A chance of snow. Waves calm to 2 feet. .SATURDAY...Southeast winds 5 to 15 knots increasing to 15 to 25 knots by late morning, then backing east by mid afternoon. Snow likely. Drizzle in the afternoon. Waves building to 3 to 5 feet occasionally to 7 feet. .SATURDAY NIGHT...East winds 20 to 30 knots becoming northeast 15 to 25 knots late. Patchy blowing snow. A chance of rain in the evening. Snow. Rain after midnight. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SUNDAY...North gales to 45 knots becoming northwest storm force winds to 55 knots in the afternoon. Blowing snow. Freezing spray in the afternoon. Snow. Visibility one quarter mile or less at times in the afternoon. Waves building to 11 to 15 feet occasionally to 19 feet. .SUNDAY NIGHT...Northwest storm force winds to 55 knots diminishing to gales to 45 knots after midnight. Heavy freezing spray and blowing snow. Snow in the evening. A chance of snow after midnight. Visibility one quarter mile or less at times. Waves subsiding to 9 to 12 feet occasionally to 15 feet. .MONDAY...Northwest gales to 35 knots diminishing to 20 to 30 knots in the afternoon. Heavy freezing spray and patchy blowing snow. A chance of snow. Waves subsiding to 4 to 7 feet occasionally to 9 feet. .MONDAY NIGHT...Northwest winds 20 to 30 knots diminishing to 15 to 25 knots after midnight. Patchy blowing snow in the evening. Heavy freezing spray. A chance of snow. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .TUESDAY...West winds 10 to 20 knots. A chance of snow. Waves subsiding to calm to 2 feet. .WEDNESDAY...West winds 15 to 25 knots. Patchy blowing snow, then freezing spray. Snow likely, then a chance of snow. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. Note, wave height forecasts are for ice free areas. $$ LSZ267-230500- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 350 PM EST Fri Feb 22 2019 ...STORM WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...Southwest winds 10 to 20 knots. Waves calm to 2 feet. .TONIGHT...South winds 5 to 15 knots. A chance of snow after midnight. Waves calm to 2 feet. .SATURDAY...Southeast winds 10 to 20 knots becoming east 15 to 25 knots by mid afternoon. Snow. Waves building to 2 to 4 feet. .SATURDAY NIGHT...East winds 15 to 25 knots increasing to 20 to 30 knots by midnight, then diminishing to 15 to 25 knots late. Patchy blowing snow. Sleet likely, possibly mixed with rain and freezing rain in the evening. Snow. Rain, possibly mixed with freezing rain and sleet after midnight. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 1 to 3 feet. .SUNDAY...North gales to 40 knots becoming northwest gales to 45 knots in the afternoon. Patchy blowing snow in the morning. Blowing snow in the afternoon. A chance of rain in the morning. Snow. Visibility one quarter mile or less at times in the afternoon. Waves building to 10 to 14 feet occasionally to 18 feet. .SUNDAY NIGHT...Northwest storm force winds to 50 knots diminishing to gales to 45 knots after midnight. Blowing snow and heavy freezing spray. Snow in the evening. A chance of snow after midnight. Visibility one quarter mile or less at times. Waves building to 11 to 15 feet occasionally to 19 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. .MONDAY...Northwest gales to 35 knots diminishing to 20 to 30 knots in the afternoon. Heavy freezing spray and areas of blowing snow. A chance of snow. Waves subsiding to 4 to 7 feet occasionally to 9 feet. .MONDAY NIGHT...Northwest winds 20 to 30 knots diminishing to 15 to 25 knots after midnight. Heavy freezing spray and patchy blowing snow. Snow likely. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .TUESDAY...Northwest winds 10 to 20 knots backing southwest. A chance of snow. Waves subsiding to calm to 2 feet. .WEDNESDAY...West winds 15 to 25 knots veering northwest. Patchy blowing snow. Freezing spray. Snow likely. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. Note, wave height forecasts are for ice free areas. $$ LSZ261-230500- MAFOR 2222/ Superior West 11510 11500 11407 11307 11207 12217 11215. Waves omitted due to the lake being mostly ice covered. Superior North Central 12510 11500 11400 11300 11317 12327. Waves omitted due to the lake being mostly ice covered. Superior South Central 11400 12500 12307 11317 12327. Waves omitted due to the lake being mostly ice covered. Superior East 13510 11400 11300 11317 12327. Waves 1 foot or less tonight. Waves 1 to 4 feet Saturday. Wave heights are for ice free areas. $$ KCW Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes