fzus63 kmqt 021401
glfls 
expires:202604022000;;706836

open lake forecast for lake superior
national weather service marquette mi
1000 am edt thu apr 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...

a 29.4 inch low lifts through the central plains and continues 
northeast today, reaching northern lake michigan this evening at 
29.5 inches before arriving at the ontario/quebec line at 29.6 
inches by friday morning. as this happens, another colorado low 
moves into kansas at 29.6 inches by friday. this low moves into 
eastern iowa by friday night as sprawling 30.7 inch high pressure 
resides over far northern quebec and hudson bay. the low moves 
through the upper great lakes at around 29.6 inches late saturday, 
with lake superior looking to be between the low at 29.3 inches now 
over northern quebec and a 30.3 inch high over the great plains by 
sunday. pressure rises on lake superior early next week as the high 
builds to 30.6 inches over the red river valley (of the north) on 
monday before moving into the western great lakes by tuesday.



lsz162-022000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt thu apr 2 2026 /900 am cdt thu apr 2 2026/

...gale warning in effect through late tonight...

.rest of today...east winds 20 to 30 knots increasing to gales to
35 knots in the afternoon, then becoming northeast gales to
40 knots late. snow. waves 5 to 8 feet occasionally to 10 feet
building to 10 to 14 feet occasionally to 18 feet. 
.tonight...northeast gales to 40 knots becoming north 15 to
25 knots late. snow through midnight, then a chance of snow after
midnight. waves subsiding to 6 to 9 feet occasionally to 11 feet.
.friday...northeast winds 15 to 25 knots becoming east 20 to
30 knots late. a slight chance of snow and sleet by mid
afternoon. waves subsiding to 3 to 5 feet occasionally to 7 feet.
.friday night...east winds 20 to 30 knots increasing to gales to
35 knots after midnight. a chance of snow through midnight. a
chance of sleet, possibly mixed with rain. snow after midnight.
waves building to 8 to 11 feet occasionally to 14 feet. 
.saturday...east gales to 35 knots becoming northeast 20 to
30 knots by mid afternoon. snow, possibly mixed with rain. waves
building to 9 to 12 feet occasionally to 15 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.saturday night...northwest winds 15 to 25 knots. a chance of
snow showers through midnight. waves subsiding to 2 to 4 feet. 
.sunday...west winds 10 to 20 knots veering northwest. a chance
of snow showers, possibly mixed with rain. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.monday...north winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 021401
glfls 
expires:202604022000;;706837

open lake forecast for lake superior
national weather service marquette mi
1000 am edt thu apr 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...

a 29.4 inch low lifts through the central plains and continues 
northeast today, reaching northern lake michigan this evening at 
29.5 inches before arriving at the ontario/quebec line at 29.6 
inches by friday morning. as this happens, another colorado low 
moves into kansas at 29.6 inches by friday. this low moves into 
eastern iowa by friday night as sprawling 30.7 inch high pressure 
resides over far northern quebec and hudson bay. the low moves 
through the upper great lakes at around 29.6 inches late saturday, 
with lake superior looking to be between the low at 29.3 inches now 
over northern quebec and a 30.3 inch high over the great plains by 
sunday. pressure rises on lake superior early next week as the high 
builds to 30.6 inches over the red river valley (of the north) on 
monday before moving into the western great lakes by tuesday.



lsz263-022000-
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-
1000 am edt thu apr 2 2026

...gale warning in effect through late tonight...

.rest of today...east winds 20 to 30 knots increasing to gales to
40 knots in the afternoon. a chance of snow by late morning, then
snow, possibly mixed with sleet by mid afternoon. waves 5 to
8 feet occasionally to 10 feet building to 10 to 14 feet
occasionally to 18 feet. 
.tonight...northeast gales to 35 knots becoming north 20 to
30 knots late. snow, possibly mixed with sleet through midnight,
then a chance of snow after midnight. waves subsiding to 7 to
10 feet occasionally to 13 feet. 
.friday...north winds 15 to 25 knots becoming northeast 10 to
20 knots in the afternoon, then increasing to 15 to 25 knots
late. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.friday night...east winds 20 to 30 knots increasing to gales to
35 knots after midnight. a chance of snow, possibly mixed with
rain through midnight. a chance of sleet. snow, possibly mixed
with rain after midnight. waves building to 8 to 11 feet
occasionally to 14 feet. 
.saturday...east gales to 35 knots becoming northeast 20 to
30 knots by mid afternoon. rain, possibly mixed with sleet
through early afternoon. snow. a slight chance of rain by mid
afternoon. waves subsiding to 6 to 9 feet occasionally to
11 feet. 
.saturday night...north winds 20 to 30 knots backing northwest
after midnight. a chance of snow showers. waves subsiding to 4 to
7 feet occasionally to 9 feet. 
.sunday...west winds 15 to 25 knots. waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.monday...north winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 

$$