fzus61 kbuf 042103
glflo 
expires:202603050400;;628463

open lake forecast for lake ontario
national weather service buffalo ny
403 pm est wed mar 4 2026

for waters beyond five nautical miles of shore on lake ontario

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 30.3 inch high over southern new england this evening, 
will slide east off the coast tonight. a 29.9 inch low will then 
track from the mid mississippi valley tonight to just south of lake 
erie thursday, across pennsylvania thursday night, then off the 
jersey coast friday while weakening to 30.1 inches. another 29.6 
inch low is then forecast to lift across the upper great lakes 
saturday, with its trailing cold front crossing the lake saturday 
night. a large 30.1 inch high will then move from the lower ohio 
valley to the mid atlantic region sunday and monday while ridging 
north across the lake.


loz064-065-050400-
lake ontario open waters from sodus bay to the saint lawrence
river-
403 pm est wed mar 4 2026

.tonight...southeast winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.thursday...northeast winds 10 to 15 knots increasing to 15 to
20 knots. a chance of rain late. waves 1 to 3 feet building to
3 to 5 feet. 
.thursday night...northeast winds 15 to 20 knots becoming east.
rain with freezing rain likely. waves 3 to 5 feet subsiding to
2 to 4 feet. 
.friday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. rain and freezing rain likely in the morning. waves
1 to 3 feet. 
.friday night...southeast winds 15 to 25 knots becoming south.
rain showers likely overnight. waves 1 to 3 feet building to 3 to
5 feet. 
.saturday...south winds 15 to 25 knots becoming west. rain
showers. waves 3 to 6 feet building to 4 to 7 feet, then
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.sunday...west winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 3 to 5 feet building to 3 to 6 feet. 
.monday...southwest winds 15 to 20 knots. waves 3 to 6 feet
subsiding to 3 to 5 feet. 

$$

fzus61 kbuf 042103
glflo 
expires:202603050400;;628462

open lake forecast for lake ontario
national weather service buffalo ny
403 pm est wed mar 4 2026

for waters beyond five nautical miles of shore on lake ontario

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 30.3 inch high over southern new england this evening, 
will slide east off the coast tonight. a 29.9 inch low will then 
track from the mid mississippi valley tonight to just south of lake 
erie thursday, across pennsylvania thursday night, then off the 
jersey coast friday while weakening to 30.1 inches. another 29.6 
inch low is then forecast to lift across the upper great lakes 
saturday, with its trailing cold front crossing the lake saturday 
night. a large 30.1 inch high will then move from the lower ohio 
valley to the mid atlantic region sunday and monday while ridging 
north across the lake.


loz062-063-050400-
lake ontario open waters from the niagara river to sodus bay-
403 pm est wed mar 4 2026

.tonight...east winds 10 knots or less becoming northeast. patchy
fog after midnight. waves 1 foot or less. 
.thursday...northeast winds 15 to 25 knots. patchy fog early. a
chance of rain late. waves 1 to 3 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 
.thursday night...northeast winds 15 to 25 knots becoming east.
rain and freezing rain in the evening, then rain with a chance of
freezing rain overnight. waves 5 to 8 feet. waves occasionally
around 10 feet. 
.friday...east winds 15 to 20 knots diminishing to 5 to 15 knots.
rain likely in the morning. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.friday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots. a chance of rain showers in the evening, then
rain showers likely overnight. waves 1 to 3 feet building to 2 to
4 feet. 
.saturday...south winds 15 to 25 knots becoming west. rain
showers. waves 3 to 6 feet building to 4 to 7 feet, then
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.sunday...west winds 15 to 25 knots becoming southwest. waves
3 to 6 feet. 
.monday...southwest winds 15 to 25 knots. waves 3 to 6 feet
subsiding to 3 to 5 feet. 

$$

fzus61 kcle 042231
glfle 
expires:202603050315;;632228

open lake forecast for lake erie
national weather service cleveland oh
531 pm est wed mar 4 2026

for waters beyond five nautical miles of shore on lake erie

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 frontal boundary will waver over the region through thursday
night before lifting north across lake erie as a warm front by
friday night. low pressure 29.70 inches will move northeast from
the upper great lakes on saturday, pushing a cold front east
across the lake saturday evening. a ridge averaging 30.10 inches
will build over the region sunday before shifting east on monday.


lez162-163-050315-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
531 pm est wed mar 4 2026

.tonight...east winds 5 to 10 knots becoming northeast. patchy
dense fog. a slight chance of rain early, then rain from late
evening on. waves in ice free areas 1 foot or less. 
.thursday...east winds 10 to 15 knots becoming northeast. patchy
fog in the morning, then areas of dense fog in the afternoon. a
chance of rain early, then rain from late morning on. waves
2 feet or less. 
.thursday night...northeast winds 5 to 15 knots becoming east
10 knots or less. patchy dense fog in the evening. a chance of
rain. waves 2 feet or less. 
.friday...east winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.friday night...south winds 10 to 15 knots becoming southwest
15 to 20 knots. a chance of rain overnight. waves 1 to 3 feet. 
.saturday...southwest winds 15 to 20 knots becoming west and
diminishing to around 10 knots. rain during the day. waves 2 to
4 feet subsiding to 2 feet or less. 
.sunday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.monday...southwest winds 15 to 20 knots. a chance of rain monday
night. waves 1 to 3 feet. 

wave heights are for ice free areas.

$$

fzus61 kcle 042231
glfle 
expires:202603050315;;632230

open lake forecast for lake erie
national weather service cleveland oh
531 pm est wed mar 4 2026

for waters beyond five nautical miles of shore on lake erie

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 frontal boundary will waver over the region through thursday
night before lifting north across lake erie as a warm front by
friday night. low pressure 29.70 inches will move northeast from
the upper great lakes on saturday, pushing a cold front east
across the lake saturday evening. a ridge averaging 30.10 inches
will build over the region sunday before shifting east on monday.


lez061-167>169-050315-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
531 pm est wed mar 4 2026

.tonight...east winds 10 knots or less becoming northeast. patchy
fog from late evening on. a slight chance of rain and snow late
this evening. a chance of rain with a slight chance of snow after
midnight, then rain likely late. the lake is mostly ice covered.
.thursday...northeast winds 15 to 20 knots. patchy fog in the
morning, then patchy dense fog in the afternoon. a chance of rain
in the morning, then rain in the afternoon. 
.thursday night...northeast winds 15 to 20 knots diminishing to
5 to 15 knots. patchy fog in the evening. rain likely. 
.friday...northeast winds 10 knots or less becoming east. 
.friday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. a chance of rain overnight. 
.saturday...southwest winds 15 to 25 knots becoming west and
diminishing to 5 to 10 knots. rain during the day, then a chance
of rain saturday night. 
.sunday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. 
.monday...southwest winds 15 to 20 knots. 

waves omitted due to the lake being mostly ice covered.

$$

fzus61 kcle 042231
glfle 
expires:202603050315;;632229

open lake forecast for lake erie
national weather service cleveland oh
531 pm est wed mar 4 2026

for waters beyond five nautical miles of shore on lake erie

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 frontal boundary will waver over the region through thursday
night before lifting north across lake erie as a warm front by
friday night. low pressure 29.70 inches will move northeast from
the upper great lakes on saturday, pushing a cold front east
across the lake saturday evening. a ridge averaging 30.10 inches
will build over the region sunday before shifting east on monday.


lez164>166-050315-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
531 pm est wed mar 4 2026

.tonight...east winds 5 to 10 knots becoming northeast. patchy
dense fog. a slight chance of rain early, then a chance of rain
late this evening. rain after midnight. waves in ice free areas
1 foot or less. 
.thursday...east winds 10 to 15 knots becoming northeast 15 to
20 knots. patchy fog in the morning, then patchy dense fog in the
afternoon. a chance of rain in the morning, then rain in the
afternoon. waves 2 feet or less. 
.thursday night...northeast winds 15 to 20 knots becoming east
5 to 15 knots. patchy fog in the evening. rain likely. waves
2 feet or less. 
.friday...east winds 10 knots or less becoming southeast. waves
1 foot or less. 
.friday night...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of rain overnight. waves 1 to 3 feet building
to 2 to 4 feet. 
.saturday...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. rain during the day. waves 3 to
5 feet subsiding to 2 feet or less. 
.sunday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.monday...southwest winds 15 to 20 knots. a chance of rain monday
night. waves 1 to 3 feet building to 2 to 4 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 042016
glfsc 
expires:202603050430;;627021

lake st clair forecast
national weather service detroit/pontiac mi
316 pm est wed mar 4 2026

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 ridge of high pressure dominates the great lakes
through wednesday while a frontal boundary remains stalled in the
ohio valley. this front will be the focus for a weak low pressure
system to track into the southern great lakes on thursday. a
stronger low then moves into the western great lakes late friday,
with a cold front passing through on saturday.


lcz460-050430-
lake st clair-
316 pm est wed mar 4 2026

.tonight...east winds 5 to 10 knots. partly cloudy this evening
becoming cloudy. areas of fog in the late evening and overnight. a
chance of light rain after midnight.
.thursday...northeast winds 5 to 10 knots increasing to 10 to 15
knots in the late morning and afternoon. areas of fog in the
morning. a chance of light rain in the morning...then rain in the
afternoon.
.thursday night...northeast winds 5 to 10 knots. cloudy. a chance of
light rain .
.friday...southeast winds 5 to 10 knots. mostly cloudy.
.friday night...south winds 10 to 15 knots increasing to 15 to 20
knots in the late evening and overnight. mostly cloudy with a chance
of light rain.
.saturday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots in the evening. becoming partly cloudy in the evening.
light rain.
.sunday...southwest winds 15 to 20 knots. mostly clear.
.monday...southwest winds 15 to 20 knots. mostly clear.

waves omitted due to ice coverage.

$$

fzus63 kdtx 042016
glflh 
expires:202603050430;;627018

open lake forecast for lake huron
national weather service detroit/pontiac mi
316 pm est wed mar 4 2026

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 ridge of high pressure dominates the great lakes
through wednesday while a frontal boundary remains stalled in the
ohio valley. this front will be the focus for a weak low pressure
system to track into the southern great lakes on thursday. a
stronger low then moves into the western great lakes late friday,
with a cold front passing through on saturday.


lhz361-362-050430-
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-
316 pm est wed mar 4 2026

.tonight...southeast winds 5 to 10 knots backing to the east
after midnight...then increasing to 10 to 15 knots early in the
morning. patchy fog. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming east 20 to
25 knots late in the morning...then decreasing to 15 to 20 knots
in the afternoon. patchy fog in the morning. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.thursday night...east winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. waves 5 to 7 feet. waves occasionally
around 10 feet. 
.friday...southeast winds 10 to 15 knots. a chance of rain in the
afternoon. waves 2 to 4 feet. 
.friday night...southeast winds 15 to 20 knots veering to the
south in the late evening and overnight. rain and a chance of
thunderstorms. waves 4 to 6 feet. waves occasionally around
8 feet. 
.saturday...southwest winds 15 to 20 knots veering to the west
late in the afternoon. a chance of rain in the morning. waves
4 to 6 feet. 
.sunday...southwest winds 20 to 25 knots. gusts to 30 knots early
in the morning. waves 6 to 9 feet. waves occasionally around
12 feet. 
.monday...southwest winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 042016
glflh 
expires:202603050430;;627019

open lake forecast for lake huron
national weather service detroit/pontiac mi
316 pm est wed mar 4 2026

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 ridge of high pressure dominates the great lakes
through wednesday while a frontal boundary remains stalled in the
ohio valley. this front will be the focus for a weak low pressure
system to track into the southern great lakes on thursday. a
stronger low then moves into the western great lakes late friday,
with a cold front passing through on saturday.


lhz363-462>464-050430-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
316 pm est wed mar 4 2026

.tonight...southeast winds 5 to 10 knots early in the evening
becoming light and variable...then becoming northeast 5 to
10 knots early in the morning. areas of fog. 
.thursday...northeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. areas of fog in the
morning. a chance of rain in the afternoon. 
.thursday night...northeast winds 10 to 15 knots becoming east
5 to 10 knots after midnight. a chance of rain in the evening. 
.friday...east winds 5 to 10 knots veering to the southeast in
the late morning and early afternoon...then becoming south 10 to
15 knots early in the afternoon. 
.friday night...south winds 15 to 20 knots. rain.
.saturday...southwest winds 15 to 20 knots becoming west 10 to
15 knots late in the afternoon. rain likely in the morning. 
.sunday...southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
early afternoon...then decreasing to 15 to 20 knots . 
.monday...southwest winds 15 to 20 knots. 

waves omitted due to ice coverage.

$$

fzus63 kmkx 042058
glflm 
expires:202603050415;;628115

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
258 pm cst wed mar 4 2026

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...
a west to east area of high pressure will remain across southern 
lake michigan through this evening. light and variable winds are 
expected. dense fog will linger into thursday morning for portions
of the southwestern open waters of the lake.

light to modest easterly flow will then become established
tonight into thursday night, as weak low pressure passes across 
the northern ohio river valley. rain and a few thunderstorms will
be possible across the southern half of the lake tonight into
thursday morning. 

low pressure around 29.5 inches will develop in the central 
plains thursday night, and track toward the upper mississippi 
river valley by friday evening. this low will move near or just 
north of lake michigan later friday night into saturday morning, 
quickly moving into quebec by saturday evening. 

as the low passes to the north, breezy southerly winds will 
develop for friday afternoon and night, then shifting northwest 
on saturday with the passage of the cold front. widespread rain 
and embedded thunderstorms will accompany the approaching and 
passing low friday into friday night.


lmz080-870-872-874-876-878-050415-
lake michigan from michigan city in to st. joseph mi 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-
258 pm cst wed mar 4 2026

wilmette harbor il to st. joseph mi south to rock island passage
to charlevoix mi...

.tonight...east winds 5 to 10 kt increasing to 10 to 15 kt.
chance of rain this evening, then slight chance of rain
overnight. patchy fog overnight. waves 1 to 2 ft. 
.thursday...east winds 10 to 20 kt becoming northeast. patchy
fog. chance of rain. waves 1 to 3 ft. 
.thursday night...east winds 10 to 20 kt becoming southeast 10 to
15 kt. waves 1 to 3 ft. 
.friday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
chance of rain in the morning, then rain likely in the afternoon.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.friday night...south winds to 30 kt. rain likely in the evening,
then rain with a chance of thunderstorms overnight. waves 4 to
7 ft occasionally to 9 ft building to 5 to 8 ft occasionally to
10 ft. 
.saturday...southwest winds to 30 kt becoming northwest 15 to
25 kt. chance of rain in the morning. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.saturday night...west winds 10 to 20 kt becoming southwest 15 to
25 kt. waves 2 to 4 ft building to 5 to 8 ft occasionally to
10 ft. 
.sunday...southwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.monday...southwest winds to 30 kt becoming south 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 042058
glflm 
expires:202603050415;;628113

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
258 pm cst wed mar 4 2026

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...
a west to east area of high pressure will remain across southern 
lake michigan through this evening. light and variable winds are 
expected. dense fog will linger into thursday morning for portions
of the southwestern open waters of the lake.

light to modest easterly flow will then become established
tonight into thursday night, as weak low pressure passes across 
the northern ohio river valley. rain and a few thunderstorms will
be possible across the southern half of the lake tonight into
thursday morning. 

low pressure around 29.5 inches will develop in the central 
plains thursday night, and track toward the upper mississippi 
river valley by friday evening. this low will move near or just 
north of lake michigan later friday night into saturday morning, 
quickly moving into quebec by saturday evening. 

as the low passes to the north, breezy southerly winds will 
develop for friday afternoon and night, then shifting northwest 
on saturday with the passage of the cold front. widespread rain 
and embedded thunderstorms will accompany the approaching and 
passing low friday into friday night.


lmz261-362-364-366-563-565-567-868-050415-
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-
258 pm cst wed mar 4 2026

sheboygan wi to pentwater mi north...

.tonight...southeast winds 5 to 10 kt becoming east late this
evening, then becoming east 5 to 10 kt after midnight becoming
northeast 10 to 20 kt late. patchy dense fog this evening, then
patchy fog overnight. waves 1 to 2 ft. 
.thursday...east winds 15 to 25 kt becoming northeast. patchy fog
in the morning. slight chance of rain in the afternoon. waves
1 to 3 ft building to 3 to 5 ft. 
.thursday night...east winds 15 to 25 kt becoming southeast 10 to
20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.friday...southeast winds 10 to 20 kt increasing to 15 to 25 kt.
chance of rain in the morning, then rain in the afternoon. waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.friday night...south winds to 30 kt becoming southwest. rain
with a chance of thunderstorms in the evening, then rain
overnight. waves 5 to 8 ft occasionally to 10 ft. 
.saturday...west winds to 30 kt becoming northwest 15 to 25 kt.
chance of rain in the morning. waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.saturday night...west winds 10 to 20 kt becoming southwest to
30 kt. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.sunday...southwest gales to 35 kt. waves 7 to 10 ft occasionally
to 13 ft. 
.monday...southwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft.  

$$

fzus63 kmkx 042058
glflm 
expires:202603050415;;628114

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
258 pm cst wed mar 4 2026

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...
a west to east area of high pressure will remain across southern 
lake michigan through this evening. light and variable winds are 
expected. dense fog will linger into thursday morning for portions
of the southwestern open waters of the lake.

light to modest easterly flow will then become established
tonight into thursday night, as weak low pressure passes across 
the northern ohio river valley. rain and a few thunderstorms will
be possible across the southern half of the lake tonight into
thursday morning. 

low pressure around 29.5 inches will develop in the central 
plains thursday night, and track toward the upper mississippi 
river valley by friday evening. this low will move near or just 
north of lake michigan later friday night into saturday morning, 
quickly moving into quebec by saturday evening. 

as the low passes to the north, breezy southerly winds will 
develop for friday afternoon and night, then shifting northwest 
on saturday with the passage of the cold front. widespread rain 
and embedded thunderstorms will accompany the approaching and 
passing low friday into friday night.


lmz671-673-675-777-779-050415-
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-
258 pm cst wed mar 4 2026

port washington wi to whitehall mi south...

...dense fog advisory in effect until 9 am cst thursday...

.tonight...east winds 5 to 10 kt increasing to 10 to 15 kt.
patchy fog. chance of rain this evening, then slight chance of
rain overnight. waves 1 to 2 ft. 
.thursday...northeast winds 10 to 20 kt. patchy fog in the
morning. rain likely in the morning, then chance of rain in the
afternoon. waves 1 to 3 ft. 
.thursday night...northeast winds 10 to 15 kt veering to
southeast. waves 1 to 3 ft. 
.friday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
rain likely in the morning, then rain in the afternoon. waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.friday night...south winds 15 to 25 kt becoming southwest. rain
likely in the evening, then rain with a chance of thunderstorms
overnight. waves 4 to 7 ft occasionally to 9 ft. 
.saturday...west winds 15 to 25 kt becoming northwest 10 to
20 kt. chance of rain in the morning. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.saturday night...west winds 10 to 20 kt becoming southwest 15 to
25 kt. waves 2 to 4 ft building to 4 to 7 ft occasionally to
9 ft. 
.sunday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft. 
.monday...southwest winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft.  

$$

fzus63 kmkx 042058
glflm 
expires:202603050415;;628116

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
258 pm cst wed mar 4 2026

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...
a west to east area of high pressure will remain across southern 
lake michigan through this evening. light and variable winds are 
expected. dense fog will linger into thursday morning for portions
of the southwestern open waters of the lake.

light to modest easterly flow will then become established
tonight into thursday night, as weak low pressure passes across 
the northern ohio river valley. rain and a few thunderstorms will
be possible across the southern half of the lake tonight into
thursday morning. 

low pressure around 29.5 inches will develop in the central 
plains thursday night, and track toward the upper mississippi 
river valley by friday evening. this low will move near or just 
north of lake michigan later friday night into saturday morning, 
quickly moving into quebec by saturday evening. 

as the low passes to the north, breezy southerly winds will 
develop for friday afternoon and night, then shifting northwest 
on saturday with the passage of the cold front. widespread rain 
and embedded thunderstorms will accompany the approaching and 
passing low friday into friday night.


lmz669-050415-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
258 pm cst wed mar 4 2026

sheboygan wi to pentwater mi south to port washington wi to
whitehall mi...

...dense fog advisory in effect until 3 pm cst this afternoon...

.tonight...east winds 5 to 10 kt becoming northeast 10 to 15 kt.
waves 1 to 2 ft. 
.thursday...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. patchy fog in the morning. chance of rain. waves 1 to
3 ft. 
.thursday night...east winds 10 to 15 kt becoming southeast.
waves 1 to 3 ft. 
.friday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
chance of rain in the morning, then rain in the afternoon. waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.friday night...south winds 15 to 25 kt becoming southwest 20 to
25 kt. rain with a chance of thunderstorms in the evening, then
rain overnight. waves 4 to 7 ft occasionally to 9 ft. 
.saturday...west winds 15 to 25 kt becoming northwest 10 to
20 kt. chance of rain in the morning. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.saturday night...west winds 10 to 20 kt becoming southwest 15 to
25 kt. waves 2 to 4 ft building to 4 to 7 ft occasionally to
9 ft. 
.sunday...southwest winds to 30 kt. waves 5 to 8 ft occasionally
to 10 ft. 
.monday...southwest winds 15 to 25 kt becoming south. waves 5 to
8 ft occasionally to 10 ft.  

$$

fzus63 kmqt 042101
glfls 
expires:202603050900;;628174

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed mar 4 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 30.1 inch trough will be over the lake today. meanwhile, a 30.6 
inch high will move from northern manitoba wednesday to quebec 
thursday morning, building to 30.7 inches late. the strong high will 
help keep a 29.9 inch low moving up from the southern plains to the 
south of the lower great lakes wednesday night, weakening to 30.1 
inches by thursday night. friday, a low pressure ejects out of the 
plains, reaching lake superior saturday morning at least at 29.7 
inches. behind the low, a 29.9 inch ridge builds over the lake on 
saturday night before a 29.1 inch low moves through northern ontario 
on sunday with troughing of 29.5 inches lingering over the lake 
through monday morning.



lsz265-050900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est wed mar 4 2026

.late this afternoon...northeast winds 10 to 20 knots. patchy
fog. waves calm to 2 feet. 
.tonight...northeast winds 10 to 20 knots becoming east 15 to
25 knots late. patchy fog. a slight chance of freezing drizzle.
waves building to 5 to 8 feet occasionally to 10 feet. 
.thursday...east winds 15 to 25 knots. patchy fog in the morning.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday night...southeast winds 15 to 25 knots diminishing to
10 to 20 knots late. waves subsiding to 2 to 4 feet. 
.friday...southeast winds 10 to 20 knots. a slight chance of rain
showers in the morning, then rain showers likely in the
afternoon. waves subsiding to 1 to 3 feet. 
.friday night...south winds 10 to 20 knots becoming northwest
20 to 30 knots after midnight. rain showers likely in the
evening, then a chance of rain and snow showers after midnight.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.saturday...northwest gales to 35 knots becoming west 20 to
30 knots in the afternoon. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.saturday night...southwest winds 20 to 30 knots increasing to
gales to 40 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...west gales to 40 knots becoming southwest gales to
35 knots. waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.monday...southwest winds 20 to 30 knots veering northwest. waves
subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 042101
glfls 
expires:202603050900;;628175

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed mar 4 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 30.1 inch trough will be over the lake today. meanwhile, a 30.6 
inch high will move from northern manitoba wednesday to quebec 
thursday morning, building to 30.7 inches late. the strong high will 
help keep a 29.9 inch low moving up from the southern plains to the 
south of the lower great lakes wednesday night, weakening to 30.1 
inches by thursday night. friday, a low pressure ejects out of the 
plains, reaching lake superior saturday morning at least at 29.7 
inches. behind the low, a 29.9 inch ridge builds over the lake on 
saturday night before a 29.1 inch low moves through northern ontario 
on sunday with troughing of 29.5 inches lingering over the lake 
through monday morning.



lsz266-050900-
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-
400 pm est wed mar 4 2026

.late this afternoon...northeast winds 10 to 20 knots. a slight
chance of freezing drizzle. waves 1 to 3 feet building to 2 to
4 feet. 
.tonight...northeast winds 15 to 25 knots becoming east 20 to
30 knots by midnight. patchy fog. a slight chance of drizzle in
the evening. a slight chance of freezing drizzle. waves building
to 5 to 9 feet occasionally to 11 feet. 
.thursday...east winds 15 to 25 knots. patchy fog in the morning.
a slight chance of freezing drizzle in the morning. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday night...southeast winds 15 to 25 knots. waves 3 to
6 feet occasionally to 8 feet. 
.friday...south winds 15 to 25 knots backing southeast in the
afternoon. a slight chance of rain showers in the morning, then
rain showers likely in the afternoon. waves subsiding to 2 to
4 feet. 
.friday night...south winds 15 to 25 knots becoming northwest
20 to 30 knots after midnight. rain showers likely. snow showers
likely after midnight. waves building to 3 to 5 feet occasionally
to 7 feet. 
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. waves building to 4 to 8 feet
occasionally to 10 feet. 
.saturday night...southwest gales to 40 knots. waves subsiding to
3 to 6 feet occasionally to 8 feet, then building to 7 to 10 feet
occasionally to 13 feet. 
.sunday...southwest gales to 40 knots. waves building to 9 to
12 feet occasionally to 15 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.monday...southwest gales to 35 knots becoming northwest 20 to
30 knots. waves subsiding to 4 to 8 feet occasionally to 10 feet.

$$

fzus63 kmqt 042101
glfls 
expires:202603050900;;628176

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed mar 4 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 30.1 inch trough will be over the lake today. meanwhile, a 30.6 
inch high will move from northern manitoba wednesday to quebec 
thursday morning, building to 30.7 inches late. the strong high will 
help keep a 29.9 inch low moving up from the southern plains to the 
south of the lower great lakes wednesday night, weakening to 30.1 
inches by thursday night. friday, a low pressure ejects out of the 
plains, reaching lake superior saturday morning at least at 29.7 
inches. behind the low, a 29.9 inch ridge builds over the lake on 
saturday night before a 29.1 inch low moves through northern ontario 
on sunday with troughing of 29.5 inches lingering over the lake 
through monday morning.



lsz267-050900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est wed mar 4 2026

.late this afternoon...southeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 15 to 25 knots backing northeast by
midnight, then veering east late. a slight chance of drizzle in
the evening. a slight chance of freezing drizzle. patchy fog
after midnight. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...east winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.thursday night...southeast winds 15 to 25 knots. waves 2 to
4 feet. 
.friday...southeast winds 15 to 25 knots. rain showers likely in
the afternoon. waves 2 to 4 feet. 
.friday night...southeast winds 15 to 25 knots veering south
after midnight. rain showers. waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet. 
.saturday...northwest winds 20 to 30 knots. a chance of rain and
snow showers in the morning. waves building to 4 to 8 feet
occasionally to 10 feet. 
.saturday night...west winds 20 to 30 knots becoming southwest
gales to 35 knots after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 7 to 10 feet
occasionally to 13 feet. 
.sunday...southwest gales to 40 knots. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.monday...southwest gales to 35 knots becoming northwest 20 to
30 knots. waves subsiding to 4 to 8 feet occasionally to 10 feet.

$$

fzus63 kmqt 042101
glfls 
expires:202603050900;;628171

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed mar 4 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 30.1 inch trough will be over the lake today. meanwhile, a 30.6 
inch high will move from northern manitoba wednesday to quebec 
thursday morning, building to 30.7 inches late. the strong high will 
help keep a 29.9 inch low moving up from the southern plains to the 
south of the lower great lakes wednesday night, weakening to 30.1 
inches by thursday night. friday, a low pressure ejects out of the 
plains, reaching lake superior saturday morning at least at 29.7 
inches. behind the low, a 29.9 inch ridge builds over the lake on 
saturday night before a 29.1 inch low moves through northern ontario 
on sunday with troughing of 29.5 inches lingering over the lake 
through monday morning.



lsz162-050900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est wed mar 4 2026 /300 pm cst wed mar 4 2026/

.late this afternoon...east winds 10 to 20 knots. patchy fog. a
slight chance of drizzle and freezing drizzle. waves calm to
2 feet building to 1 to 3 feet. 
.tonight...northeast winds 15 to 25 knots increasing to 20 to
30 knots by midnight. patchy fog. a slight chance of drizzle in
the evening. a slight chance of freezing drizzle and snow
showers. a slight chance of sleet after midnight. waves building
to 5 to 8 feet occasionally to 10 feet. 
.thursday...northeast winds 15 to 25 knots. patchy fog in the
morning. a slight chance of freezing drizzle and snow showers in
the morning. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.thursday night...northeast winds 10 to 20 knots becoming east
5 to 15 knots by midnight. waves subsiding to 1 to 3 feet. 
.friday...east winds 5 to 15 knots backing northeast in the
afternoon. a chance of rain showers in the morning, then rain
showers likely in the afternoon. waves subsiding to calm to
2 feet. 
.friday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of rain showers. a chance of
snow showers after midnight. waves calm to 2 feet. 
.saturday...northwest winds 15 to 25 knots backing west in the
afternoon. waves building to 2 to 4 feet. 
.saturday night...southwest gales to 40 knots. waves building to
6 to 10 feet occasionally to 13 feet. 
.sunday...southwest gales to 35 knots diminishing to 15 to
25 knots. waves subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots becoming north 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 

$$

fzus63 kmqt 042101
glfls 
expires:202603050900;;628172

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed mar 4 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 30.1 inch trough will be over the lake today. meanwhile, a 30.6 
inch high will move from northern manitoba wednesday to quebec 
thursday morning, building to 30.7 inches late. the strong high will 
help keep a 29.9 inch low moving up from the southern plains to the 
south of the lower great lakes wednesday night, weakening to 30.1 
inches by thursday night. friday, a low pressure ejects out of the 
plains, reaching lake superior saturday morning at least at 29.7 
inches. behind the low, a 29.9 inch ridge builds over the lake on 
saturday night before a 29.1 inch low moves through northern ontario 
on sunday with troughing of 29.5 inches lingering over the lake 
through monday morning.



lsz263-050900-
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-
400 pm est wed mar 4 2026

.late this afternoon...northeast winds 10 to 20 knots. patchy
fog. a slight chance of freezing drizzle and snow showers. waves
calm to 2 feet building to 1 to 3 feet. 
.tonight...northeast winds 15 to 25 knots increasing to 20 to
30 knots by midnight. patchy fog. a slight chance of freezing
drizzle and snow showers. a slight chance of sleet after
midnight. waves building to 6 to 9 feet occasionally to 11 feet. 
.thursday...east winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. patchy fog in the morning. a slight
chance of freezing drizzle and snow showers in the morning. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday night...east winds 10 to 20 knots veering southeast by
midnight, then diminishing to 5 to 15 knots late. waves subsiding
to 2 to 4 feet. 
.friday...southeast winds 5 to 15 knots. a slight chance of rain
showers in the morning, then rain showers likely in the
afternoon. waves subsiding to calm to 2 feet. 
.friday night...north winds 5 to 15 knots increasing to 15 to
25 knots after midnight. a chance of rain showers. a chance of
snow showers after midnight. waves calm to 2 feet. 
.saturday...northwest winds 15 to 25 knots backing west in the
afternoon. waves building to 2 to 4 feet. 
.saturday night...southwest gales to 40 knots. waves building to
7 to 10 feet occasionally to 13 feet. 
.sunday...southwest gales to 40 knots diminishing to 20 to
30 knots. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.monday...west winds 15 to 25 knots veering north. waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet. 

$$

fzus63 kmqt 042101
glfls 
expires:202603050900;;628173

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed mar 4 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 30.1 inch trough will be over the lake today. meanwhile, a 30.6 
inch high will move from northern manitoba wednesday to quebec 
thursday morning, building to 30.7 inches late. the strong high will 
help keep a 29.9 inch low moving up from the southern plains to the 
south of the lower great lakes wednesday night, weakening to 30.1 
inches by thursday night. friday, a low pressure ejects out of the 
plains, reaching lake superior saturday morning at least at 29.7 
inches. behind the low, a 29.9 inch ridge builds over the lake on 
saturday night before a 29.1 inch low moves through northern ontario 
on sunday with troughing of 29.5 inches lingering over the lake 
through monday morning.



lsz264-050900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est wed mar 4 2026

.late this afternoon...northeast winds 10 to 20 knots. a slight
chance of freezing drizzle. waves 1 to 3 feet building to 2 to
4 feet. 
.tonight...northeast winds 20 to 30 knots becoming east 15 to
25 knots late. patchy fog. a slight chance of freezing drizzle
and snow showers. waves building to 6 to 10 feet occasionally to
13 feet. 
.thursday...east winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. patchy fog in the morning. a slight
chance of freezing drizzle and snow showers in the morning. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday night...east winds 10 to 20 knots veering southeast by
midnight. waves 3 to 6 feet occasionally to 8 feet. 
.friday...southeast winds 10 to 20 knots. a chance of rain
showers. waves subsiding to 2 to 4 feet. 
.friday night...south winds 5 to 15 knots becoming north 15 to
25 knots after midnight. a chance of rain showers. a chance of
snow showers after midnight. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.saturday...northwest winds 20 to 30 knots becoming west 15 to
25 knots in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.saturday night...southwest gales to 40 knots. waves building to
8 to 11 feet occasionally to 14 feet. 
.sunday...southwest gales to 40 knots diminishing to 20 to
30 knots. waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.monday...southwest winds 20 to 30 knots becoming north 15 to
25 knots. waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 4 to 7 feet occasionally to 9 feet. 

$$