Expires:202406031000;;343735
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.


LSZ266-031000-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
949 PM EDT Sun Jun 2 2024

.REST OF TONIGHT...East winds 5 to 15 knots becoming south 10 to 
20 knots late. Waves calm to 2 feet building to 2 to 4 feet. 
.MONDAY...Southeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. A slight chance of showers through early afternoon, then
showers likely and a slight chance of thunderstorms by mid
afternoon. Waves 2 to 4 feet. 
.MONDAY NIGHT...Southeast winds 10 to 20 knots diminishing to
5 to 15 knots late. A slight chance of thunderstorms through
midnight. A chance of showers. Waves subsiding to calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. A slight chance of showers and
thunderstorms by mid afternoon. Waves building to 1 to 3 feet. 
.TUESDAY NIGHT...Southeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. A chance of showers through
midnight. Showers likely after midnight. Waves building to 2 to
4 feet. 
.WEDNESDAY...Southwest winds 10 to 20 knots. Showers likely
through early afternoon. A chance of showers by mid afternoon.
Waves subsiding to 1 to 3 feet. 
.WEDNESDAY NIGHT...South winds 10 to 20 knots veering west after
midnight. A chance of showers. Waves 1 to 3 feet. 
.THURSDAY...West winds 15 to 25 knots. A chance of showers. Waves
building to 2 to 4 feet. 
.FRIDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots. A chance of showers. Waves subsiding to 1 to 3 feet. 

$$