Expires:202511130300;;306105
FZUS63 KMQT 122108 CCA
GLFLS 

Open Lake Forecast for Lake Superior...CORRECTED
National Weather Service Marquette MI
408 PM EST Wed Nov 12 2025

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...

Ridging progressively builds over Lake Superior tonight into 
Thursday, eventually peaking at 30.0 to 30.1 inches Thursday night 
ahead of a 29.2 inch low lifting out of Alberta. This low looks to 
bring troughing of around 29.4 inches across Lake Superior on 
Saturday. By the end of the weekend, Lake Superior looks to be 
between low pressure of near 28.7 inches over the Canadian Maritimes 
and high pressure of near 30.1 inches over the Canadian Prairies. 
Ridging then builds in from the Canadian Prairies and Plains over 
Lake Superior to 30.1 to 30.2 inches by Monday night.



LSZ261-130300-
MAFOR 1222/
Superior West...GALE WARNING IN EFFECT...12740 19750 11730 14630 
11630. Waves 4 to 7 feet subsiding to 2 to 4 feet tonight. Waves 3 to
5 feet subsiding to 2 to 4 feet Thursday. 

Superior North Central...GALE WARNING IN EFFECT...13750 11740
12640 11650 11640. Waves 7 to 11 feet subsiding to 5 to 9 feet
tonight. Waves 5 to 8 feet Thursday. 

Superior South Central...GALE WARNING IN EFFECT...14750 13650
11640. Waves 8 to 12 feet subsiding to 7 to 10 feet tonight.
Waves 5 to 9 feet subsiding to 4 to 7 feet Thursday. 

Superior East...GALE WARNING IN EFFECT...11756 13750 14740. Waves
10 to 14 feet tonight. Waves 8 to 12 feet subsiding to 7 to 10
feet Thursday. 

$$

WFO MQT

Experimental modernized open lake forecast is available online at
weather.gov/mqt/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes