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Marine Forecast
Expires:201801201700;;718075
FZUS63 KMQT 200848
GLFLS 

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
348 AM EST Sat Jan 20 2018

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 29.1 inch low pressure east of James Bay will
continue to track east today. A trailing 29.9 inch low pressure
trough will then linger across the Upper Great Lakes through
tonight before dropping south on Sunday. As 30.5 inch high
pressure builds into northern Ontario on Sunday, low pressure of
29.5 inches will begin to organize over the Southern Plains. This
low will then lift northeast, tracking across northern Lower
Michigan Tuesday morning. As the low reaches the Canadian
Maritimes on Wednesday, high pressure of 30.3 inches will shift
southeast to the Upper Great Lakes. 

LSZ264-201700-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
348 AM EST Sat Jan 20 2018

.EARLY THIS MORNING...Northwest winds 15 to 25 knots. Waves 4 to
7 feet occasionally to 9 feet. 
Today - Northwest winds 15 to 25 knots becoming north 5 to
15 knots by late morning, then veering east by mid afternoon.
Waves subsiding to calm to 2 feet. 

Tonight - Southwest winds less than 10 knots. Waves calm to 2 feet. .SUNDAY...North winds 5 to 15 knots becoming northeast 10 to 20 knots by late morning, then increasing to 15 to 25 knots by mid afternoon. A slight chance of freezing rain. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...Northeast winds 15 to 25 knots. Freezing spray. A slight chance of snow, possibly mixed with freezing rain after midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .MONDAY...East winds 15 to 25 knots becoming northeast 20 to 30 knots in the afternoon. Freezing spray. A chance of snow. Waves building to 6 to 9 feet occasionally to 11 feet. .MONDAY NIGHT...Northeast gales to 35 knots. Freezing spray. Snow likely. Waves building to 6 to 10 feet occasionally to 13 feet. .TUESDAY...North winds 20 to 30 knots becoming northeast 15 to 25 knots. Heavy freezing spray. A chance of snow. Waves subsiding to 2 to 4 feet. .WEDNESDAY...East winds 5 to 15 knots veering southwest. A chance of snow. Waves subsiding to calm to 2 feet. Note, wave height forecasts are for ice free areas. $$


US Forecasts are Public Domain and derived from the
National Weather Service - (IWIN) and the National Oceanic Atmospheric Administration (NOAA)
Canadian forecasts are obtained from and are copyright of Environment Canada.

All weather information provided by MarineWaypoints.com should be used with caution.
We cannot guarantee that the data provided here is 100% accurate or up to date!


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