fzus63 kdtx 291351
glflh 
expires:202303292200;;868656

open lake forecast for lake huron
national weather service detroit/pontiac mi
951 am edt wed mar 29 2023

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...a cold front, 29.90 inches, will move over lake huron
this morning and will bring a prolonged period of gales across
north and north- central lake huron. northwest flow behind the
front will also bring elevated wave action across lake huron,
especially across the nearshore zones from the outer saginaw bay
into harbor beach. high pressure, 30.40 inches, then quickly
fills in behind the cold front late tomorrow night into thursday
morning, centering over lake erie.


lhz361-362-292200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
951 am edt wed mar 29 2023

...gale warning in effect through this evening...

.rest of today...west winds to 30 knots with gusts to 35 knot
gales. scattered snow showers late in the morning. waves 6 to
9 feet building to 12 to 16 feet in the afternoon. waves
occasionally around 20 feet. 
.tonight...northwest winds 20 to 25 knots with gusts to 35 knot
gales becoming west 10 to 15 knots. waves 10 to 14 feet subsiding
to 6 to 9 feet after midnight. waves occasionally around 18 feet.
.thursday...west winds 10 to 15 knots backing to the south early
in the afternoon. waves 3 to 5 feet. 
.thursday night...south winds 10 to 15 knots increasing to 15 to
20 knots after midnight. a chance of snow in the evening...then
snow and rain after midnight. waves 2 to 4 feet building to 4 to
6 feet after midnight. waves occasionally around 8 feet. 
.friday...southeast winds 20 to 25 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots late in the morning...then
decreasing to 5 to 10 knots late in the afternoon becoming
northeast 15 to 20 knots with gusts to around 30 knots late in
the evening. rain in the morning...then rain likely late in the
morning. rain late in the afternoon. waves 6 to 9 feet subsiding
to 5 to 7 feet late in the evening. waves occasionally around
12 feet. 
.saturday...northeast winds to 30 knots with gusts to 40 knot
gales becoming north 20 to 25 knots with gusts to 40 knot gales
until early evening...then becoming northwest 10 to 15 knots with
gusts to around 30 knots in the late evening and early morning.
rain early in the morning. a chance of snow early in the morning.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.sunday...northwest winds 10 to 15 knots backing to the south
until early evening...then increasing to 15 to 20 knots in the
late evening and early morning. a chance of snow in the late
evening and early morning. waves 3 to 5 feet. 


$$

fzus63 kdtx 291351
glflh 
expires:202303292200;;868657

open lake forecast for lake huron
national weather service detroit/pontiac mi
951 am edt wed mar 29 2023

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...a cold front, 29.90 inches, will move over lake huron
this morning and will bring a prolonged period of gales across
north and north- central lake huron. northwest flow behind the
front will also bring elevated wave action across lake huron,
especially across the nearshore zones from the outer saginaw bay
into harbor beach. high pressure, 30.40 inches, then quickly
fills in behind the cold front late tomorrow night into thursday
morning, centering over lake erie.


lhz363-462-292200-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
951 am edt wed mar 29 2023

.rest of today...west winds 15 to 20 knots increasing to 20 to
25 knots in the afternoon. gusts to 30 knots. scattered snow
showers late in the morning. waves 4 to 6 feet building to 10 to
14 feet in the afternoon. waves occasionally around 18 feet. 
.tonight...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. waves 8 to 12 feet
subsiding to 4 to 6 feet early in the morning. waves occasionally
around 15 feet. 
.thursday...west winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and afternoon. waves 3 to 5 feet
subsiding to 2 to 4 feet in the late morning and afternoon. 
.thursday night...south winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots after midnight. rain and
snow after midnight. waves 2 to 4 feet building to 4 to 6 feet
after midnight. waves occasionally around 8 feet. 
.friday...southeast winds 20 to 25 knots with gusts to 35 knot
gales becoming south 15 to 20 knots late in the morning...then
decreasing to 10 to 15 knots late in the afternoon increasing to
15 to 20 knots with gusts to around 30 knots late in the evening.
rain likely...then rain late in the afternoon. waves 8 to 12 feet
subsiding to 5 to 7 feet late in the afternoon. waves
occasionally around 15 feet. 
.saturday...southwest winds 20 to 25 knots with gusts to 40 knot
gales becoming west to 30 knots with gusts to 40 knot gales in
the late morning and early afternoon...then becoming north 20 to
25 knots with gusts to 40 knot gales early in the evening
becoming northwest 15 to 20 knots with gusts to around 30 knots
in the late evening and early morning. rain early in the morning.
a chance of snow early in the morning. a chance of rain in the
late morning and early afternoon. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.sunday...northwest winds 10 to 15 knots backing to the southwest
in the late morning and early afternoon...then backing to the
south early in the evening increasing to 15 to 20 knots in the
late evening and early morning. waves 4 to 6 feet subsiding to
2 to 4 feet early in the evening...then building to 3 to 5 feet
in the late evening and early morning. waves occasionally around
8 feet. 


$$

fzus63 kmkx 291349
glflm 
expires:202303292115;;868637

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
849 am cdt wed mar 29 2023

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...

northwest winds are expected today, generally in the 25 to 30 
knot range. gusts could briefly approach gales toward the straits
of mackinac this morning. high pressure around 30.4 inches then 
moves into the area tonight bringing a period of lighter westerly 
winds.

winds become southerly on thursday, ahead of low pressure of 29.3
inches in eastern colorado. this low will lift into north central
iowa by friday afternoon, while deepening to 29.1 inches. this 
will bring the potential for thunderstorms mainly across the 
southern half of the lake friday, along with some southerly gales.

as the low departs northwesterly gales look likely for friday 
night into saturday. depending on the exact track and strength of
the low as it moves eastward, some gusts on saturday may approach
storm force.


lmz261-362-364-366-563-565-567-868-292115-
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-
849 am cdt wed mar 29 2023

sheboygan wi to pentwater mi north...

.rest of today...northwest winds to 30 kt diminishing to 15 to
25 kt. slight chance of snow this afternoon. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.tonight...northwest winds 10 to 20 kt becoming west 10 to 15 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...west winds 10 to 15 kt becoming south 10 to 20 kt.
waves 3 to 5 ft. 
.thursday night...south winds to 30 kt increasing to gales to
40 kt overnight. rain and snow in the evening, then rain
overnight. waves 4 to 7 ft occasionally to 9 ft building to 7 to
10 ft occasionally to 13 ft. 
.friday...south winds to 30 kt becoming southeast. rain. waves
7 to 10 ft occasionally to 13 ft. 
.friday night...northeast gales to 40 kt becoming north storm
force winds to 50 kt. rain and snow likely. waves 6 to 9 ft
occasionally to 12 ft building to 10 to 14 ft occasionally to
18 ft. 
.saturday...north storm force winds to 50 kt diminishing to gales
to 40 kt. chance of snow. waves 14 to 18 ft occasionally to 23 ft
subsiding to 12 to 16 ft occasionally to 21 ft. 
.sunday...south winds 15 to 25 kt increasing to 30 kt. waves 2 to
4 ft building to 4 to 6 ft occasionally to 8 ft. 

$$

fzus63 kmkx 291349
glflm 
expires:202303292115;;868638

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
849 am cdt wed mar 29 2023

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...

northwest winds are expected today, generally in the 25 to 30 
knot range. gusts could briefly approach gales toward the straits
of mackinac this morning. high pressure around 30.4 inches then 
moves into the area tonight bringing a period of lighter westerly 
winds.

winds become southerly on thursday, ahead of low pressure of 29.3
inches in eastern colorado. this low will lift into north central
iowa by friday afternoon, while deepening to 29.1 inches. this 
will bring the potential for thunderstorms mainly across the 
southern half of the lake friday, along with some southerly gales.

as the low departs northwesterly gales look likely for friday 
night into saturday. depending on the exact track and strength of
the low as it moves eastward, some gusts on saturday may approach
storm force.


lmz080-669-671-673-675-777-779-870-872-874-876-878-292115-
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-
849 am cdt wed mar 29 2023

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. chance of snow through mid morning. waves 4 to 6 ft
occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft.
.tonight...northwest winds 10 to 15 kt backing to southwest.
waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to 3 ft. 
.thursday...south winds 10 to 15 kt becoming southeast 10 to
20 kt. waves 1 to 3 ft building to 3 to 5 ft. 
.thursday night...southeast winds to 30 kt becoming south gales
to 40 kt overnight. chance of rain in the evening, then rain
overnight. waves 4 to 7 ft occasionally to 9 ft building to 7 to
10 ft occasionally to 13 ft. 
.friday...south gales to 40 kt diminishing to 30 kt in the
afternoon. chance of rain in the morning, then chance of rain and
thunderstorms in the afternoon. waves 7 to 10 ft occasionally to
13 ft subsiding to 6 to 9 ft occasionally to 12 ft. 
.friday night...south gales to 40 kt becoming west storm force
winds to 50 kt. rain with a chance of thunderstorms. waves 6 to
9 ft occasionally to 12 ft building to 10 to 14 ft occasionally
to 18 ft. 
.saturday...northwest storm force winds to 50 kt diminishing to
gales to 45 kt. chance of snow. waves 14 to 18 ft occasionally to
23 ft. 
.sunday...south winds 15 to 25 kt increasing to 30 kt. waves 2 to
4 ft building to 4 to 6 ft occasionally to 8 ft. 

$$

fzus63 kmqt 291356
glfls 
expires:202303292200;;868823

open lake forecast for lake superior
national weather service marquette mi
956 am edt wed mar 29 2023

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...this morning, a 29.9 inch low is over northeast 
ontario while a 30.5 inch high is over north dakota. by this 
afternoon, the low will deepen to 29.7 inches over western quebec 
while the high weakens to 30.4 inches over southern minnesota. 
overnight into thursday, the high will push east into the ohio 
river valley, further weakening to 30.3 inches. as the high drifts
east thursday, a 29.3 inch colorado low forms. throughout the day
friday, this low deepens to 29.2 inches, reaching southern 
wisconsin friday night and lake huron saturday morning. 30.1 inch 
ridging then builds over lake superior saturday while a 29.4 inch 
alberta clipper low forms. this low will weaken to 29.6 inches as 
it treks east sunday, reaching lake superior monday morning. 


lsz162-292200-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
956 am edt wed mar 29 2023 /856 am cdt wed mar 29 2023/

...heavy freezing spray warning in effect until 2 pm edt /1 pm
cdt/ this afternoon...

.rest of today...northwest winds 15 to 25 knots backing west in
the afternoon. heavy freezing spray. waves 3 to 5 feet 
occasionally to 7 feet subsiding to 2 to 4 feet, then building to 
3 to 5 feet occasionally to 7 feet. 
.tonight...west winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.thursday...southwest winds 10 to 20 knots. a slight chance of
snow by mid afternoon. waves subsiding to 1 to 3 feet. 
.thursday night...east winds 10 to 20 knots becoming northeast
15 to 25 knots after midnight. a chance of snow, possibly mixed
with sleet through midnight. a slight chance of rain. snow likely
after midnight. waves subsiding to calm to 2 feet, then building
to 3 to 6 feet occasionally to 8 feet. 
.friday...northeast winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. a chance of snow. waves building to
7 to 10 feet occasionally to 13 feet. 
.friday night...northeast gales to 40 knots backing north after
midnight. freezing spray after midnight. waves building to 10 to
14 feet occasionally to 18 feet. 
.saturday...north winds 20 to 30 knots becoming south 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.sunday...southeast winds 15 to 25 knots veering west. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 

$$

fzus63 kmqt 291356
glfls 
expires:202303292200;;868824

open lake forecast for lake superior
national weather service marquette mi
956 am edt wed mar 29 2023

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...this morning, a 29.9 inch low is over northeast 
ontario while a 30.5 inch high is over north dakota. by this 
afternoon, the low will deepen to 29.7 inches over western quebec 
while the high weakens to 30.4 inches over southern minnesota. 
overnight into thursday, the high will push east into the ohio 
river valley, further weakening to 30.3 inches. as the high drifts
east thursday, a 29.3 inch colorado low forms. throughout the day
friday, this low deepens to 29.2 inches, reaching southern 
wisconsin friday night and lake huron saturday morning. 30.1 inch 
ridging then builds over lake superior saturday while a 29.4 inch 
alberta clipper low forms. this low will weaken to 29.6 inches as 
it treks east sunday, reaching lake superior monday morning. 


lsz263-292200-
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-
956 am edt wed mar 29 2023

...heavy freezing spray warning in effect until 2 pm edt this
afternoon...

.rest of today...northwest winds 20 to 30 knots backing west in
the afternoon, then diminishing to 15 to 25 knots late. heavy
freezing spray. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...west winds 15 to 25 knots. freezing spray. waves
building to 4 to 7 feet occasionally to 9 feet. 
.thursday...west winds 15 to 25 knots backing southwest in the
afternoon. freezing spray through early afternoon. waves
subsiding to 2 to 4 feet. 
.thursday night...east winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of snow through midnight. a
slight chance of rain. snow likely after midnight. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.friday...northeast winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. a chance of snow. waves building to
7 to 10 feet occasionally to 13 feet. 
.friday night...northeast gales to 45 knots becoming north storm
force winds to 55 knots after midnight. freezing spray after
midnight. waves building to 15 to 20 feet occasionally to
25 feet. 
.saturday...north gales to 45 knots becoming south 10 to
20 knots. freezing spray. waves subsiding to calm to 2 feet, then
building to 1 to 3 feet. 
.sunday...south winds 15 to 25 knots veering southwest. waves
building to 2 to 4 feet. 

$$

fzus63 kmqt 291356
glfls 
expires:202303292200;;868825

open lake forecast for lake superior
national weather service marquette mi
956 am edt wed mar 29 2023

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...this morning, a 29.9 inch low is over northeast 
ontario while a 30.5 inch high is over north dakota. by this 
afternoon, the low will deepen to 29.7 inches over western quebec 
while the high weakens to 30.4 inches over southern minnesota. 
overnight into thursday, the high will push east into the ohio 
river valley, further weakening to 30.3 inches. as the high drifts
east thursday, a 29.3 inch colorado low forms. throughout the day
friday, this low deepens to 29.2 inches, reaching southern 
wisconsin friday night and lake huron saturday morning. 30.1 inch 
ridging then builds over lake superior saturday while a 29.4 inch 
alberta clipper low forms. this low will weaken to 29.6 inches as 
it treks east sunday, reaching lake superior monday morning. 


lsz264-292200-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
956 am edt wed mar 29 2023

...heavy freezing spray warning in effect until 2 pm edt this
afternoon...

.rest of today...northwest winds 15 to 25 knots backing west
late. heavy freezing spray. waves 4 to 7 feet occasionally to
9 feet subsiding to 3 to 6 feet occasionally to 8 feet. 
.tonight...west winds 15 to 25 knots. freezing spray. isolated
snow showers. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 15 to 25 knots backing southwest in the
afternoon. freezing spray. waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 4 to 7 feet occasionally
to 9 feet. 
.thursday night...south winds 5 to 15 knots becoming east 10 to
20 knots after midnight. a chance of snow through midnight, then
snow likely, possibly mixed with rain after midnight. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.friday...northeast winds 15 to 25 knots increasing to gales to
35 knots by mid afternoon. a chance of snow. waves building to
5 to 8 feet occasionally to 10 feet. 
.friday night...northeast gales to 45 knots becoming north storm
force winds to 55 knots after midnight. heavy freezing spray
after midnight. waves building to 15 to 20 feet occasionally to
25 feet. 
.saturday...north storm force winds to 50 knots becoming south
10 to 20 knots. heavy freezing spray. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.sunday...south winds 10 to 20 knots becoming west 15 to
25 knots. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 291356
glfls 
expires:202303292200;;868826

open lake forecast for lake superior
national weather service marquette mi
956 am edt wed mar 29 2023

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...this morning, a 29.9 inch low is over northeast 
ontario while a 30.5 inch high is over north dakota. by this 
afternoon, the low will deepen to 29.7 inches over western quebec 
while the high weakens to 30.4 inches over southern minnesota. 
overnight into thursday, the high will push east into the ohio 
river valley, further weakening to 30.3 inches. as the high drifts
east thursday, a 29.3 inch colorado low forms. throughout the day
friday, this low deepens to 29.2 inches, reaching southern 
wisconsin friday night and lake huron saturday morning. 30.1 inch 
ridging then builds over lake superior saturday while a 29.4 inch 
alberta clipper low forms. this low will weaken to 29.6 inches as 
it treks east sunday, reaching lake superior monday morning. 


lsz265-292200-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
956 am edt wed mar 29 2023

.rest of today...northwest winds to 30 knots with a few gale
force gusts to 35 knots possible becoming west 20 to 30 knots 
late. freezing spray. isolated snow showers. waves 4 to 7 feet 
occasionally to 9 feet subsiding to 3 to 5 feet occasionally to 7 
feet. 
.tonight...west winds 15 to 25 knots. isolated snow showers
through midnight. waves subsiding to 2 to 4 feet, then building
to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 10 to 20 knots backing south late. waves
subsiding to calm to 2 feet. 
.thursday night...south winds 10 to 20 knots backing east after
midnight. a slight chance of rain through midnight. snow. rain
after midnight. waves calm to 2 feet. 
.friday...northeast winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. a chance of rain, possibly mixed with
snow. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday night...northeast gales to 40 knots becoming north storm
force winds to 55 knots after midnight. a chance of snow through
midnight. freezing spray after midnight. waves building to 15 to
20 feet occasionally to 25 feet. 
.saturday...north storm force winds to 50 knots becoming
southwest 10 to 20 knots. freezing spray. waves subsiding to calm
to 2 feet. 
.sunday...south winds 15 to 25 knots. waves building to 1 to
3 feet. 

$$

fzus63 kmqt 291356
glfls 
expires:202303292200;;868827

open lake forecast for lake superior
national weather service marquette mi
956 am edt wed mar 29 2023

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...this morning, a 29.9 inch low is over northeast 
ontario while a 30.5 inch high is over north dakota. by this 
afternoon, the low will deepen to 29.7 inches over western quebec 
while the high weakens to 30.4 inches over southern minnesota. 
overnight into thursday, the high will push east into the ohio 
river valley, further weakening to 30.3 inches. as the high drifts
east thursday, a 29.3 inch colorado low forms. throughout the day
friday, this low deepens to 29.2 inches, reaching southern 
wisconsin friday night and lake huron saturday morning. 30.1 inch 
ridging then builds over lake superior saturday while a 29.4 inch 
alberta clipper low forms. this low will weaken to 29.6 inches as 
it treks east sunday, reaching lake superior monday morning. 


lsz266-292200-
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-
956 am edt wed mar 29 2023

...gale warning in effect until 5 pm edt this afternoon...

.rest of today...northwest gales to 35 knots diminishing to 20 to
30 knots late. freezing spray. scattered snow showers. waves 8 to
11 feet occasionally to 14 feet building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.tonight...west winds 15 to 25 knots. freezing spray. isolated
snow showers. waves subsiding to 4 to 7 feet occasionally to
9 feet. 
.thursday...west winds 15 to 25 knots backing south late.
freezing spray through early afternoon. waves subsiding to 3 to
6 feet occasionally to 8 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.thursday night...south winds 10 to 20 knots backing southeast
after midnight. a chance of snow through midnight. a slight
chance of rain. snow after midnight. waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.friday...northeast winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. a chance of rain, possibly mixed with
snow. waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.friday night...northeast gales to 45 knots becoming north storm
force winds to 55 knots after midnight. a chance of snow.
freezing spray after midnight. waves building to 15 to 20 feet
occasionally to 25 feet. 
.saturday...north storm force winds to 55 knots becoming south
15 to 25 knots. freezing spray. waves building to 17 to 22 feet
occasionally to 28 feet, then subsiding to 1 to 3 feet. 
.sunday...south winds 15 to 25 knots. a chance of snow. waves
building to 2 to 4 feet. 

$$

fzus63 kmqt 291356
glfls 
expires:202303292200;;868828

open lake forecast for lake superior
national weather service marquette mi
956 am edt wed mar 29 2023

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...this morning, a 29.9 inch low is over northeast 
ontario while a 30.5 inch high is over north dakota. by this 
afternoon, the low will deepen to 29.7 inches over western quebec 
while the high weakens to 30.4 inches over southern minnesota. 
overnight into thursday, the high will push east into the ohio 
river valley, further weakening to 30.3 inches. as the high drifts
east thursday, a 29.3 inch colorado low forms. throughout the day
friday, this low deepens to 29.2 inches, reaching southern 
wisconsin friday night and lake huron saturday morning. 30.1 inch 
ridging then builds over lake superior saturday while a 29.4 inch 
alberta clipper low forms. this low will weaken to 29.6 inches as 
it treks east sunday, reaching lake superior monday morning. 


lsz267-292200-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
956 am edt wed mar 29 2023

...gale warning in effect until 8 pm edt this evening...

.rest of today...northwest gales to 45 knots. freezing spray.
scattered snow showers. waves 8 to 11 feet occasionally to
14 feet building to 9 to 12 feet occasionally to 15 feet, then
subsiding to 6 to 9 feet occasionally to 11 feet. 
.tonight...west gales to 35 knots diminishing to 15 to 25 knots.
freezing spray. scattered snow showers. waves subsiding to 4 to
7 feet occasionally to 9 feet. 
.thursday...west winds 15 to 25 knots backing southwest in the
afternoon, then diminishing to 10 to 20 knots late. waves
subsiding to 2 to 4 feet. 
.thursday night...south winds 15 to 25 knots backing southeast
after midnight. a chance of snow through midnight, then rain,
possibly mixed with snow after midnight. waves building to 3 to
6 feet occasionally to 8 feet. 
.friday...east winds 10 to 20 knots becoming northeast 15 to
25 knots by mid afternoon. rain likely. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.friday night...northeast gales to 40 knots increasing to storm
force winds to 55 knots after midnight. a chance of rain and
snow. freezing spray after midnight. waves building to 15 to
20 feet occasionally to 25 feet. 
.saturday...north storm force winds to 55 knots becoming
northwest 15 to 25 knots. freezing spray. waves subsiding to 1 to
3 feet. 
.sunday...south winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow. a chance of rain. waves building to
2 to 4 feet. 

$$