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fzus63 kdtx 041447
glflh 
314 

open lake forecast for lake huron
national weather service detroit/pontiac mi
947 am est thu mar 4 2021

for waters beyond five nautical miles off shore on lake huron

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...increased wave action along the nearshore waters of
lake huron is expected today-friday. stronger northwest flow
develops on friday, as high pressure of 30.50 inches begins to
build into the region. the high pressure center then translates
across the central great lakes throughout the weekend into early
next week.

lhz361-042130-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
947 am est thu mar 4 2021

.rest of today...north winds 10 to 15 knots. waves 1 to 3 feet. 
.tonight...northwest winds 10 to 15 knots increasing to 15 to
20 knots late in the evening...then decreasing to 10 to 15 knots
after midnight. waves 3 to 5 feet. 
.friday...northwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
afternoon. waves 4 to 6 feet building to 6 to 9 feet early in the
afternoon. waves occasionally around 12 feet. 
.friday night...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 15 to 20 knots with gusts to around
30 knots in the late evening and overnight. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet. 
.sunday...light and variable winds becoming east 5 to 10 knots in
the late morning and early afternoon...then veering to the south
early in the evening increasing to 10 to 15 knots in the late
evening and early morning. waves 2 feet or less building to 2 to
4 feet in the late evening and early morning. 
.monday...southwest winds 10 to 15 knots becoming west 5 to
10 knots until early morning. waves 2 to 4 feet subsiding to 1 to
3 feet. 


$$
fzus63 kdtx 041447
glflh 

lhz362-363-462-042130-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
947 am est thu mar 4 2021

.rest of today...north winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon...then becoming northwest 15 to
20 knots late in the afternoon. scattered snow showers. waves
3 to 5 feet. 
.tonight...northwest winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.friday...northwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 35 knot gales in the late morning and
afternoon. waves 6 to 9 feet building to 10 to 14 feet early in
the afternoon. waves occasionally around 18 feet. 
.friday night...northwest winds to 30 knots with gusts to 35 knot
gales decreasing to 20 to 25 knots with gusts to 35 knot gales in
the late evening and overnight. waves 10 to 14 feet. waves
occasionally around 18 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the evening. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.sunday...north winds 5 to 10 knots veering to the east in the
late morning and early afternoon...then veering to the south
early in the evening increasing to 10 to 15 knots in the late
evening and early morning. waves 3 to 5 feet subsiding to 1 to
3 feet until early evening...then building to 2 to 4 feet in the
late evening and early morning. 
.monday...south winds 15 to 20 knots becoming southwest 5 to
10 knots. waves 3 to 5 feet. 


$$
fzus63 kmkx 041442
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-042215-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
842 am cst thu mar 4 2021

sheboygan wi to pentwater mi south...

.rest of today...north winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.tonight...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.friday...northwest winds 10 to 20 kt becoming north. waves 3 to
5 ft. 
.friday night...north winds 10 to 20 kt. waves 3 to 5 ft. 
.saturday...north winds 10 to 15 kt becoming northwest. waves
3 to 5 ft. 
.saturday night...west winds 5 to 10 kt becoming southwest. waves
1 to 3 ft. 
.sunday...south winds 10 to 20 kt. waves 1 to 3 ft building to
2 to 4 ft. 
.monday...southwest winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft.  

$$
fzus63 kmkx 041442
glflm 
024 

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
842 am cst thu mar 4 2021

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis... 

strong high pressure of 30.6 inches will linger to the west of 
hudson bay today into friday, before shifting southeast across 
ontario on saturday. north winds are generally expected today and
tonight, then become northwest on friday. north to northwest winds
are then expected friday night into saturday. winds should shift 
to the south later in the weekend.

&&

lmz261-362-364-366-563-565-567-868-042215-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
842 am cst thu mar 4 2021

sheboygan wi to pentwater mi north...

.rest of today...north winds 10 to 20 kt. waves 3 to 5 ft. 
.tonight...north winds 10 to 20 kt becoming northwest. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.friday...northwest winds 15 to 25 kt becoming north. waves 3 to
5 ft building to 4 to 6 ft occasionally to 8 ft. 
.friday night...north winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.saturday...northwest winds 10 to 20 kt. waves 3 to 5 ft
subsiding to 1 to 3 ft. 
.saturday night...northwest winds 10 to 15 kt becoming southwest.
waves 1 to 3 ft. 
.sunday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.monday...southwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft.  

$$
fzus63 kmqt 041454
glfls 

lsz264-042300-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
954 am est thu mar 4 2021

.rest of today...northeast winds 5 to 15 knots backing north by
late morning, then becoming northwest less than 10 knots by mid
afternoon. flurries. waves 1 to 3 feet subsiding to calm to
2 feet. 
.tonight...west winds 5 to 15 knots veering northwest by
midnight, then becoming north 10 to 20 knots late. waves building
to 2 to 4 feet. 
.friday...north winds 10 to 20 knots becoming northwest 15 to
25 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 1 to 3 feet. 
.saturday...north winds 5 to 15 knots backing northwest in the
afternoon. waves subsiding to calm to 2 feet. 
.saturday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...south winds 10 to 20 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 

$$
fzus63 kmqt 041454
glfls 

lsz265-042300-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
954 am est thu mar 4 2021

.rest of today...north winds 5 to 15 knots. flurries. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots increasing to 10 to
20 knots late. flurries after midnight. waves building to 1 to
3 feet. 
.friday...northwest winds 10 to 20 knots becoming north 15 to
25 knots by late morning, then backing northwest by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday night...northwest winds 10 to 20 knots. waves subsiding
to 2 to 4 feet. 
.saturday...northwest winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.monday...west winds 10 to 20 knots. waves subsiding to calm to
2 feet. 

$$
fzus63 kmqt 041454
glfls 

lsz266-042300-
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-
954 am est thu mar 4 2021

.rest of today...north winds 10 to 20 knots backing northwest by
mid afternoon. flurries. waves 2 to 4 feet subsiding to calm to
2 feet. 
.tonight...northwest winds 10 to 20 knots veering north late.
flurries. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday...north winds 20 to 30 knots backing northwest by mid
afternoon. waves building to 5 to 8 feet occasionally to 10 feet.
.friday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.saturday...north winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.saturday night...northwest winds 5 to 15 knots backing south
after midnight. waves subsiding to calm to 2 feet. 
.sunday...south winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 

$$
fzus63 kmqt 041454
glfls 

lsz267-042300-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
954 am est thu mar 4 2021

.rest of today...northeast winds 10 to 20 knots backing northwest
by mid afternoon. flurries. waves 1 to 3 feet subsiding to calm
to 2 feet. 
.tonight...northwest winds 10 to 20 knots veering north by
midnight. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...north winds 15 to 25 knots increasing to 20 to 30 knots
by late morning, then becoming northwest to 30 knots with a few
gale force gusts to 35 knots possible by mid afternoon. freezing
spray in the morning. waves building to 5 to 8 feet occasionally
to 10 feet. 
.friday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves building to 6 to
9 feet occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.saturday...north winds 15 to 25 knots backing northwest in the
afternoon. waves subsiding to 1 to 3 feet. 
.saturday night...north winds 5 to 15 knots veering southeast
after midnight. waves subsiding to calm to 2 feet. 
.sunday...south winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.monday...west winds 10 to 20 knots. waves subsiding to calm to
2 feet. 

$$
fzus63 kmqt 041454
glfls 
432 

open lake forecast for lake superior
national weather service marquette mi
954 am est thu mar 4 2021

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 high pressure ridge of 30.4 inches will remain over
lake superior through saturday night before a 29.7 inch trough
tracks over the northern plains. this trough will track northeast
towards the hudson bay on sunday, which will swing a 30.0 inch
trough across lake superior by monday morning. weak 30.2 inch 
ridging builds over the northern lakes on monday while 29.7 inch 
troughing builds over the northern great plains by tuesday 
afternoon. an attendant 29.6 surface low then develops near 
western lake superior late tuesday night. 

lsz162-042300-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
954 am est thu mar 4 2021 /854 am cst thu mar 4 2021/

.rest of today...east winds 10 to 20 knots diminishing to 5 to
15 knots. flurries. waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots veering west by
midnight. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots veering east by late morning,
then veering south by mid afternoon. waves calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots backing south in the
afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...south winds 10 to 20 knots veering southwest. waves
building to 1 to 3 feet. 
.monday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 

$$
fzus63 kmqt 041454
glfls 

lsz263-042300-
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-
954 am est thu mar 4 2021

.rest of today...northeast winds 5 to 15 knots. flurries. waves
calm to 2 feet. 
.tonight...west winds 5 to 15 knots becoming northwest 10 to
20 knots late. waves calm to 2 feet. 
.friday...north winds 10 to 20 knots becoming west 5 to 15 knots
by mid afternoon. waves building to 2 to 4 feet, then subsiding
to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots veering south in the
afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots veering southwest. waves
building to 2 to 4 feet. 
.monday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 

$$

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