Latest Great Lakes Marine Forecast by KMQT
Issued 5/2/2026 4:15 AM America/New_York.
Valid through 5/2/2026 12:15 PM America/New_York.
fzus63 kmqt 020815 aaa
glfls
expires:202605021615;;882263
open lake forecast for lake superior...updated
national weather service marquette mi
415 am edt sat may 2 2026
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...
weak ridging persists between 30.0 and 30.1 inches over lake
superior through this morning. a 29.6 inch trough moves over the
lake tonight and deepens with time before a 29.1 inch low crosses
northern ontario and drags a 29.3 inch trough across the lake on
monday. weak ridging around 30.0 inches builds back over lake
superior by tuesday in the wake of the low and persists through
wednesday as high pressure builds over the northern plains.
lsz162-021615-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
415 am edt sat may 2 2026 /315 am cdt sat may 2 2026/
.early this morning...west winds 5 to 15 knots. waves calm to
2 feet.
.today...southwest winds 5 to 15 knots backing south in the
afternoon. waves calm to 2 feet.
.tonight...southeast winds 5 to 15 knots backing northeast after
midnight, then backing west late. a chance of rain showers. waves
calm to 2 feet.
.sunday...west winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.sunday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of rain showers after
midnight. waves building to 1 to 3 feet.
.monday...west winds 15 to 25 knots. a chance of rain showers.
waves building to 2 to 4 feet.
.monday night...northwest winds 15 to 25 knots backing west after
midnight. waves subsiding to calm to 2 feet.
.tuesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves calm to 2 feet.
.wednesday...southwest winds 5 to 15 knots veering northwest.
waves calm to 2 feet.
$$
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