Latest Great Lakes Marine Forecast by KMQT
Issued 3/29/2024 3:43 AM America/New_York.
Valid through 3/29/2024 11:45 AM America/New_York.
fzus63 kmqt 290743
glfls
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open lake forecast for lake superior
national weather service marquette mi
343 am edt fri mar 29 2024
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...today, a 30.0 inch ridge builds over the lake
associated with a 30.2 inch high over the northern canadian
prairie provinces. tonight, ridging weakens over the lake as a
29.7 inch low approaches the southern portions of the great lakes
basin. as the low moves through southern lake michigan early
saturday, an inverted 29.8 inch trough will move through lake
superior. 30.0 inch ridge will return saturday night, then build
to 30.1 inches sunday night. this ridge will remain over lake
superior late weekend into early next week. a deepening low
pressure system moving into the lower midwest sometime monday
night thorough tuesday will lead to height falls over lake
superior, but exact timing and track of this system remains
uncertain.
lsz162-291545-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
343 am edt fri mar 29 2024 /243 am cdt fri mar 29 2024/
.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet.
.today...north winds 5 to 15 knots veering east in the afternoon,
then increasing to 10 to 20 knots late. a slight chance of snow
showers by mid afternoon. waves building to 1 to 3 feet.
.tonight...east winds 10 to 20 knots increasing to 15 to 25 knots
after midnight. a chance of snow through midnight, then snow
likely after midnight. waves building to 3 to 6 feet occasionally
to 8 feet.
.saturday...east winds 10 to 20 knots backing northeast in the
afternoon, then becoming south 5 to 15 knots late. a chance of
snow. waves subsiding to calm to 2 feet.
.saturday night...west winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet.
.sunday...west winds 10 to 20 knots. waves calm to 2 feet.
.sunday night...northeast winds 10 to 20 knots. waves building to
1 to 3 feet.
.monday...northeast winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.tuesday...northeast winds 10 to 20 knots backing north. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.
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