Expires:202406031000;;343737
FZUS63 KMQT 030149
GLFLS 

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
949 PM EDT Sun Jun 2 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...As the weak 30.0 inch ridge over the Upper Great Lakes 
shifts east to Quebec and the Lower Great Lakes tonight, a 29.6 
inch trough will sweep across the Northern Plains to Minnesota. On
Monday, this trough will dissipate before reaching Lake Superior,
leaving Lake Superior between 30.0 inch ridging over Quebec into 
the Lower Great Lakes and a new trough of 29.4 inches emerging 
over the western Dakotas. On Tuesday, 29.2 inch low pressure 
tracking across the Canadian Prairies will power the trough 
eastward to the Upper Mississippi Valley. The trough will then 
sail across Lake Superior Tuesday night and Wednesday morning 
while the parent low pressure tracks from the Canadian Prairies 
toward northern Ontario. On Thursday, the low, weakening to 29.3 
inches, will slowly drift southeast across northern Ontario while 
a 30.0 inch high pressure ridge builds southeast into the Central 
Plains. The ridge looks to overtake much of the Mississippi River 
Valley by Friday evening while the low over northern Ontario 
weakens to 29.5 inches.


LSZ261-031000-
MAFOR 0303/
Superior West 12320 11426 11316 11310 12300 11200. A chance of
thunderstorms Monday morning. Waves 1 to 4 feet.

Superior North Central 12320 11330 11320 12326 11320 11310. Waves
1 to 4 feet overnight. Waves 2 to 5 feet Monday and Monday 
evening.

Superior South Central 11310 11320 11420 12320 12326 11310. Waves
1 to 3 feet. 

Superior East 13310 19314 11310 12320 11310 11320. A chance of
showers Monday afternoon and Monday evening. Waves 1 to 4 feet.

$$

Jablonski

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

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