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Mt. Washington, NH
(windiest place in U.S.)
FZUS63 KMQT 202001
Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 PM EDT Tue Mar 20 2018
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 30.4 inch high centered over northern Ontario will
shift slowly east into Quebec by Sunday, while strengthening to
30.7 inches. This high will extend a 30.3 inch ridge southward
over the Great Lakes through this time period.
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EDT Tue Mar 20 2018 /301 PM CDT Tue Mar 20 2018/
.LATE THIS AFTERNOON...East winds 10 to 20 knots. Isolated snow
showers. Waves 2 to 4 feet.
Tonight - East winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...East winds less than 10 knots veering
southeast after midnight, then veering southwest late. Waves calm
to 2 feet.
.THURSDAY...Southwest winds less than 10 knots. Waves calm to
.THURSDAY NIGHT...Southwest winds less than 10 knots becoming
east 5 to 15 knots after midnight. Waves calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Waves building to 2 to 4 feet.
.FRIDAY NIGHT...East winds 10 to 20 knots increasing to 15 to
25 knots after midnight. Waves building to 3 to 5 feet
occasionally to 7 feet.
.SATURDAY...East winds 10 to 20 knots. Waves subsiding to 1 to
.SUNDAY...Southeast winds 5 to 15 knots veering south. A chance
of snow showers. Waves subsiding to calm to 2 feet.
Note, wave height forecasts are for ice free areas.