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Marine Forecast
FZUS63 KMQT 191502

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1002 AM EST Mon Feb 19 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 29.9 inch trough over eastern Lake Superior will 
be pushed off to the southeast today by a 30.5 inch high pressure
moving across northern Ontario. Secondary troughing of 29.8 
inches will push northeastward into the Western Great Lakes
Tuesday morning and reach southern Quebec Wednesday morning. A 
high pressure system of 30.6 inches will push towards the Great 
Lakes Wednesday afternoon and slowly shift into southern Quebec 
through the day Thursday. A weak 30.1 inch trough will pass 
across the western Great lakes on Friday followed by weak ridging
of 30.3 inches overnight.

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-
1002 AM EST Mon Feb 19 2018

Rest of Today - Northeast winds 20 to 30 knots with a few gale force gusts to 35 knots late. Areas of blowing snow. Scattered snow showers late in the morning. Snow in the afternoon.
Tonight - Northeast winds 20 to 30 knots. Areas of blowing snow. Numerous snow showers. A slight chance of freezing rain after midnight. .TUESDAY...Northeast winds 15 to 25 knots diminishing to 10 to 20 knots by late morning, then becoming north 5 to 15 knots by mid afternoon. Areas of blowing snow in the morning. Snow showers, possibly mixed with freezing rain. .TUESDAY NIGHT...Northwest winds 5 to 15 knots. A chance of snow showers. .WEDNESDAY...West winds 5 to 15 knots increasing to 10 to 20 knots in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 15 knots. .THURSDAY...Southwest winds 5 to 15 knots backing south. A chance of snow showers. .FRIDAY...Southwest winds 5 to 15 knots. A chance of snow showers. Note, waves omitted for mostly ice covered 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 should be used with caution.
We cannot guarantee that the data provided here is 100% accurate or up to date!

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