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fzus63 kmqt 220819
glfls 
expires:202406221630;;454897

open lake forecast for lake superior
national weather service marquette mi
419 am edt sat jun 22 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...high pressure of 30.0 inches over lake superior today will
weaken to 29.9 inches later today and tonight as a 29.7 low 
pressure trough tracks northeast from wisconsin into eastern upper
michigan. as the low passes near the straits of mackinac saturday
night and reaches southern quebec on sunday, it will deepen to 
29.5 inches. in its wake, 29.9 inch high pressure building into 
the northern plains on sunday will settle over the western great 
lakes region on monday and then the appalachians on tuesday. back 
to the northwest, 29.3 inch low pressure over manitoba monday 
night will track east toward james bay on tuesday, pushing an 
associated 29.6 inch trough across lake superior through tuesday 
night. 29.9 inch high pressure extends into the upper great lakes 
wednesday from the high plains. 


lsz162-221630-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
419 am edt sat jun 22 2024 /319 am cdt sat jun 22 2024/

.early this morning...northeast winds 10 to 20 knots. a slight
chance of showers. waves calm to 2 feet. 
.today...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. a chance of showers. waves building to 2 to 4 feet. 
.tonight...northeast winds 5 to 15 knots backing northwest after
midnight, then backing west late. a slight chance of showers.
waves subsiding to calm to 2 feet. 
.sunday...west winds 5 to 15 knots. a slight chance of showers
and thunderstorms. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots backing southwest after
midnight. patchy fog after midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.monday night...east winds 10 to 20 knots veering southwest after
midnight. showers likely and a chance of thunderstorms. waves
calm to 2 feet. 
.tuesday...southwest winds 10 to 20 knots veering west. waves
building to 2 to 4 feet, then subsiding to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots becoming north 5 to
15 knots. waves calm to 2 feet. 

$$
fzus63 kmqt 220819
glfls 
expires:202406221630;;454898

open lake forecast for lake superior
national weather service marquette mi
419 am edt sat jun 22 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...high pressure of 30.0 inches over lake superior today will
weaken to 29.9 inches later today and tonight as a 29.7 low 
pressure trough tracks northeast from wisconsin into eastern upper
michigan. as the low passes near the straits of mackinac saturday
night and reaches southern quebec on sunday, it will deepen to 
29.5 inches. in its wake, 29.9 inch high pressure building into 
the northern plains on sunday will settle over the western great 
lakes region on monday and then the appalachians on tuesday. back 
to the northwest, 29.3 inch low pressure over manitoba monday 
night will track east toward james bay on tuesday, pushing an 
associated 29.6 inch trough across lake superior through tuesday 
night. 29.9 inch high pressure extends into the upper great lakes 
wednesday from the high plains. 


lsz263-221630-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
419 am edt sat jun 22 2024

.early this morning...east winds 5 to 15 knots. a slight chance
of showers. waves calm to 2 feet. 
.today...east winds 5 to 15 knots becoming northeast 10 to
20 knots in the afternoon. a chance of showers. waves building to
2 to 4 feet. 
.tonight...northeast winds 5 to 15 knots backing north after
midnight, then backing west late. a slight chance of showers.
waves subsiding to calm to 2 feet. 
.sunday...west winds 5 to 15 knots. a slight chance of showers
and thunderstorms. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots becoming southwest less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...southwest winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.monday night...south winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. a chance of showers through
midnight. a chance of thunderstorms. showers likely after
midnight. waves building to 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots backing west. waves
subsiding to calm to 2 feet. 

$$
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