FZUS63 KMQT 190119 GLFLS Open Lake Forecast for Lake Superior National Weather Service Marquette MI 919 PM EDT Sat May 18 2019 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...Low pressure of 29.5 inches is currently in the Central Plains, slowly traversing towards the Great Lakes. On Sunday afternoon, this low will pass over the Upper Great Lakes, reaching Quebec by Monday morning. Behind this low, a 30.1 inch ridge of high pressure will build across Lake Superior through Tuesday night. On Wednesday morning, a 29.3 inch low will develop in the Central Plains before progressing north towards the Dakotas. Look for the low pressure to fizzle out over northwestern Minnesota Thursday morning, as another low forms just east of Colorado. LSZ162-190930- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM- 919 PM EDT Sat May 18 2019 /819 PM CDT Sat May 18 2019/ ...GALE WARNING IN EFFECT FROM 5 AM EDT /4 AM CDT/ SUNDAY THROUGH SUNDAY EVENING... .REST OF TONIGHT...Northeast winds 15 to 25 knots increasing to 20 to 30 knots after midnight. A slight chance of rain. Waves 3 to 6 feet occasionally to 8 feet building to 5 to 8 feet occasionally to 10 feet. .SUNDAY...Northeast gales to 40 knots backing north late. Snow, possibly mixed with rain through early afternoon, then rain, possibly mixed with snow by mid afternoon. Patchy fog by mid afternoon. Waves building to 10 to 14 feet occasionally to 18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. .SUNDAY NIGHT...North winds 20 to 30 knots diminishing to 5 to 15 knots. A chance of rain showers through midnight. Waves subsiding to 2 to 4 feet. .MONDAY...Northwest winds 5 to 15 knots backing southwest by mid afternoon. Waves subsiding to calm to 2 feet. .MONDAY NIGHT...Southwest winds 5 to 15 knots becoming south less than 10 knots after midnight. Waves calm to 2 feet. .TUESDAY...East winds 5 to 15 knots. Waves building to 1 to 3 feet. .TUESDAY NIGHT...East winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. A chance of rain showers. Waves building to 2 to 4 feet. .WEDNESDAY...East winds 10 to 20 knots diminishing to 5 to 15 knots. A chance of rain showers. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 1 to 3 feet. .THURSDAY...Northeast winds 5 to 15 knots. Rain showers likely. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. $$ LSZ263-190930- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- 919 PM EDT Sat May 18 2019 ...GALE WARNING IN EFFECT FROM 5 AM EDT SUNDAY THROUGH SUNDAY EVENING... .REST OF TONIGHT...Northeast winds 10 to 20 knots increasing to 20 to 30 knots. A slight chance of rain. Waves 3 to 5 feet occasionally to 7 feet building to 5 to 8 feet occasionally to 10 feet. .SUNDAY...Northeast gales to 40 knots. Patchy fog. A chance of rain, possibly mixed with snow through early afternoon. Rain by mid afternoon. Waves building to 10 to 14 feet occasionally to 18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. .SUNDAY NIGHT...North gales to 35 knots diminishing to 15 to 25 knots. A chance of rain showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .MONDAY...Northwest winds 5 to 15 knots backing west by mid afternoon. Waves subsiding to calm to 2 feet. .MONDAY NIGHT...Southwest winds 5 to 15 knots becoming south less than 10 knots after midnight. Waves calm to 2 feet. .TUESDAY...East winds 5 to 15 knots. Waves building to 1 to 3 feet. .TUESDAY NIGHT...East winds 5 to 15 knots. A chance of rain showers. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. .WEDNESDAY...East winds 10 to 20 knots diminishing to 5 to 15 knots. A chance of rain showers. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. .THURSDAY...Northeast winds 5 to 15 knots veering east. Rain showers likely. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. $$ LSZ264-190930- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- 919 PM EDT Sat May 18 2019 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...Northeast winds 5 to 15 knots increasing to 15 to 25 knots late. A slight chance of rain. Waves calm to 2 feet building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast winds 20 to 30 knots increasing to gales to 35 knots in the afternoon. A chance of rain through early afternoon, then rain by mid afternoon. Patchy fog by mid afternoon. Waves building to 6 to 10 feet occasionally to 13 feet. .SUNDAY NIGHT...North gales to 35 knots diminishing to 20 to 30 knots late. Rain showers likely through midnight, then a chance of rain showers after midnight. Waves building to 7 to 10 feet occasionally to 13 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. .MONDAY...North winds 10 to 20 knots becoming west 5 to 15 knots by mid afternoon. Waves subsiding to 1 to 3 feet. .MONDAY NIGHT...West winds 5 to 15 knots veering northwest after midnight. Waves subsiding to calm to 2 feet. .TUESDAY...Northeast winds less than 10 knots becoming east 5 to 15 knots by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...East winds 5 to 15 knots. Waves building to 1 to 3 feet. .WEDNESDAY...East winds 10 to 20 knots veering southeast. A chance of rain showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet. .THURSDAY...East winds 5 to 15 knots. Rain showers likely. Waves subsiding to calm to 2 feet, then building to 2 to 4 feet. $$ LSZ265-190930- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- 919 PM EDT Sat May 18 2019 ...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...Northeast winds 15 to 25 knots increasing to 20 to 30 knots late. A chance of rain. Waves 2 to 4 feet building to 3 to 5 feet occasionally to 7 feet. .SUNDAY...Northeast gales to 40 knots. Patchy fog. Rain. Waves building to 7 to 10 feet occasionally to 13 feet. .SUNDAY NIGHT...Northeast gales to 40 knots backing north after midnight, then diminishing to 20 to 30 knots late. Rain showers likely through midnight, then a chance of rain showers after midnight. Waves building to 9 to 12 feet occasionally to 15 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. .MONDAY...North winds 15 to 25 knots becoming northwest 10 to 20 knots by mid afternoon. A slight chance of rain showers through early afternoon. Waves subsiding to 1 to 3 feet. .MONDAY NIGHT...West winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .TUESDAY...Northeast winds 5 to 15 knots veering east by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...East winds 10 to 20 knots veering southeast after midnight. A chance of rain showers after midnight. Waves building to 1 to 3 feet. .WEDNESDAY...Southeast winds 15 to 25 knots diminishing to 5 to 15 knots. A chance of rain showers. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 1 to 3 feet. .THURSDAY...East winds 5 to 15 knots increasing to 10 to 20 knots. Rain showers likely. Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. $$ LSZ266-190930- 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- 919 PM EDT Sat May 18 2019 ...GALE WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF TONIGHT...Northeast winds 10 to 20 knots increasing to 15 to 25 knots late. A chance of rain. Waves 2 to 4 feet building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast winds 20 to 30 knots increasing to gales to 35 knots late. Patchy fog. Rain. Waves building to 7 to 10 feet occasionally to 13 feet. .SUNDAY NIGHT...Northeast gales to 35 knots backing north after midnight. Rain showers likely through midnight, then a chance of 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. .MONDAY...North winds 15 to 25 knots becoming northwest 10 to 20 knots by mid afternoon. A slight chance of rain showers through early afternoon. Waves subsiding to 2 to 4 feet. .MONDAY NIGHT...Northwest winds 5 to 15 knots. Waves subsiding to calm to 2 feet. .TUESDAY...North winds less than 10 knots veering east by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...East winds 5 to 15 knots veering southeast after midnight. Waves building to 1 to 3 feet. .WEDNESDAY...Southeast winds 10 to 20 knots. A chance of rain showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet. .THURSDAY...East winds 5 to 15 knots veering southeast. Waves subsiding to calm to 2 feet, then building to 2 to 4 feet. $$ LSZ267-190930- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 919 PM EDT Sat May 18 2019 .REST OF TONIGHT...Northeast winds 10 to 20 knots increasing to 15 to 25 knots late. A chance of rain. Waves 1 to 3 feet building to 2 to 4 feet. .SUNDAY...Northeast winds 15 to 25 knots increasing to 20 to 30 knots in the afternoon. Patchy fog. Rain. Waves building to 4 to 7 feet occasionally to 9 feet. .SUNDAY NIGHT...Northeast winds to 30 knots with a few gale force gusts to 35 knots possible backing north after midnight, then diminishing to 20 to 30 knots late. Rain showers likely. Waves building to 5 to 9 feet occasionally to 11 feet. .MONDAY...North winds 20 to 30 knots becoming northwest 15 to 25 knots by mid afternoon. A slight chance of rain showers through early afternoon. Waves subsiding to 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet. .TUESDAY...North winds 5 to 15 knots backing northwest by mid afternoon. Waves calm to 2 feet. .TUESDAY NIGHT...Northeast winds 5 to 15 knots becoming east 10 to 20 knots after midnight. Waves calm to 2 feet. .WEDNESDAY...Southeast winds 10 to 20 knots. A chance of rain showers. Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. .THURSDAY...Southeast winds 10 to 20 knots. A chance of rain showers. Waves subsiding to calm to 2 feet. $$ LSZ261-190930- MAFOR 1903/ Superior West...GALE WARNING IN EFFECT...12130 11140 11150 11157 12156 11856. Waves 3 to 6 feet overnight. Waves 6 to 9 feet building to 8 to 12 feet Sunday. Waves 7 to 10 feet subsiding to 5 to 8 feet Sunday evening. Superior North Central...GALE WARNING IN EFFECT...11110 11120 12140 14156. Waves 1 to 2 feet building to 2 to 4 feet overnight. Waves 5 to 8 feet building to 6 to 9 feet Sunday. Waves 6 to 10 feet Sunday evening. Superior South Central...GALE WARNING IN EFFECT...12120 11130 12146 13156. Waves 3 to 5 feet overnight. Waves 3 to 5 feet building to 5 to 9 feet Sunday. Waves 8 to 11 feet Sunday evening. Superior East...GALE WARNING IN EFFECT...12120 11130 12146 13156. Waves 1 to 3 feet building to 2 to 4 feet overnight. Waves 3 to 6 feet building to 4 to 7 feet Sunday. Waves 6 to 9 feet Sunday evening. $$ JAW Experimental modernized open lake forecast is available online at weather.gov/mqt/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes