fzus61 kbuf 040805
glflo 
expires:202604041500;;807616

open lake forecast for lake ontario
national weather service buffalo ny
404 am edt sat apr 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 29.4 inch surface low will track through the central 
great lakes today, then into quebec tonight and sunday, while 
dragging a strong cold front across the lake early tonight, with a 
secondary cold front then following sunday night and monday. a 30.5 
inch high will then build across the great lakes tuesday and tuesday 
night, before sliding east and off the new england coast wednesday.


loz062-041500-
lake ontario open waters from the niagara river to hamlin beach-
404 am edt sat apr 4 2026

.today...east winds 10 to 15 knots increasing to 15 to 25 knots.
a chance of rain showers from late morning on. waves 1 to 2 feet
building to 3 to 6 feet. 
.tonight...east winds 15 to 20 knots becoming southwest. showers
with a chance of thunderstorms through the early overnight, then
showers late. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. a chance of rain showers in
the afternoon. waves 3 to 5 feet building to 5 to 7 feet. waves
occasionally around 9 feet. 
.sunday night...west winds 15 to 25 knots. a chance of rain
showers in the evening. waves 4 to 7 feet subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.monday...west winds 15 to 20 knots becoming northwest. a chance
of rain and snow showers during the day, then snow and rain
showers likely monday night. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.tuesday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. snow showers likely during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots increasing to 15 to
25 knots. waves 1 foot or less building to 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 040805
glflo 
expires:202604041500;;807617

open lake forecast for lake ontario
national weather service buffalo ny
404 am edt sat apr 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 29.4 inch surface low will track through the central 
great lakes today, then into quebec tonight and sunday, while 
dragging a strong cold front across the lake early tonight, with a 
secondary cold front then following sunday night and monday. a 30.5 
inch high will then build across the great lakes tuesday and tuesday 
night, before sliding east and off the new england coast wednesday.


loz063>065-041500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
404 am edt sat apr 4 2026

.today...northeast winds 10 to 15 knots becoming east 15 to
20 knots. a chance of rain showers this afternoon. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...southeast winds 15 to 25 knots becoming southwest to
30 knots. a chance of showers and thunderstorms early, then
showers likely with a chance of thunderstorms late in the
evening. showers with a chance of thunderstorms after midnight.
waves 2 to 4 feet building to 5 to 8 feet. waves occasionally
around 10 feet. 
.sunday...west winds 15 to 25 knots increasing to 30 knots. rain
showers in the morning, then a chance of rain showers in the
afternoon. waves 3 to 6 feet building to 5 to 9 feet. waves
occasionally around 11 feet. 
.sunday night...west winds to 30 knots diminishing to 15 to
25 knots. a chance of rain showers in the evening. waves 6 to
10 feet. waves occasionally around 13 feet. 
.monday...west winds 15 to 20 knots becoming northwest. a chance
of rain and snow showers during the day, then snow and rain
showers likely monday night. waves 4 to 7 feet subsiding to 1 to
3 feet. waves occasionally around 9 feet. 
.tuesday...north winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. snow showers likely during the
day. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday...south winds 5 to 10 knots increasing to 30 knots.
waves 2 feet or less building to 5 to 8 feet. waves occasionally
around 10 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 040739
glfle 
expires:202604041415;;806664

open lake forecast for lake erie
national weather service cleveland oh
339 am edt sat apr 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 warm front will move north across the lake this morning as low
pressure 29.60 inches moves northeast through the great lakes
dragging a cold front through late this evening. a trough
averaging 30.00 inches will linger over lake erie through monday.
high pressure 30.50 will build across the region for tuesday into
wednesday. 


lez061-168-169-041415-
ripley to buffalo ny extending from 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-
339 am edt sat apr 4 2026

.today...northeast winds 5 to 15 knots becoming southeast. a
chance of rain showers with a slight chance of thunderstorms this
morning, then a slight chance of rain showers and thunderstorms
early this afternoon. a chance of rain showers and thunderstorms
late. waves 1 to 3 feet. 
.tonight...south winds 10 to 15 knots becoming west. showers with
a chance of thunderstorms in the evening, then showers after
midnight. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. waves 2 to 4 feet building
to 3 to 6 feet. 
.sunday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers overnight. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.monday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of rain showers during the day, then a chance
of rain and snow showers monday night. waves 1 to 3 feet building
to 3 to 5 feet. 
.tuesday...northwest winds 15 to 20 knots becoming south and
diminishing to less than 10 knots. waves 3 to 5 feet subsiding to
1 foot or less. 
.wednesday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. waves 2 feet or less building to
3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 040739
glfle 
expires:202604041415;;806662

open lake forecast for lake erie
national weather service cleveland oh
339 am edt sat apr 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 warm front will move north across the lake this morning as low
pressure 29.60 inches moves northeast through the great lakes
dragging a cold front through late this evening. a trough
averaging 30.00 inches will linger over lake erie through monday.
high pressure 30.50 will build across the region for tuesday into
wednesday. 


lez162>164-041415-
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-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
339 am edt sat apr 4 2026

.today...east winds 15 to 20 knots becoming southwest. a slight
chance of showers this morning, then a chance of showers and
thunderstorms early this afternoon. showers with a chance of
thunderstorms late. waves 1 to 3 feet. 
.tonight...southwest winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms early, then a chance of showers
late in the evening. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. waves 2 to 4 feet. 
.sunday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.monday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of rain showers during the day. waves 1 to
2 feet building to 3 to 5 feet. 
.tuesday...north winds 15 to 20 knots becoming southeast 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...southeast winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 2 to
4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 040739
glfle 
expires:202604041415;;806663

open lake forecast for lake erie
national weather service cleveland oh
339 am edt sat apr 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 warm front will move north across the lake this morning as low
pressure 29.60 inches moves northeast through the great lakes
dragging a cold front through late this evening. a trough
averaging 30.00 inches will linger over lake erie through monday.
high pressure 30.50 will build across the region for tuesday into
wednesday. 


lez165>167-041415-
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-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
339 am edt sat apr 4 2026

.today...east winds 10 to 15 knots becoming south 15 to 20 knots.
a chance of rain showers with a slight chance of thunderstorms
this morning, then a chance of rain showers and thunderstorms
this afternoon. waves 1 to 3 feet building to 2 to 4 feet. 
.tonight...southwest winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms early, then showers with a slight
chance of thunderstorms late in the evening. a chance of showers
after midnight. waves 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. waves 3 to 6 feet. 
.sunday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday...west winds 10 to 15 knots becoming northwest and
increasing to 15 to 25 knots. a chance of rain showers. waves
1 to 2 feet building to 3 to 6 feet. 
.tuesday...northwest winds 15 to 20 knots becoming southeast 5 to
15 knots. waves 3 to 6 feet subsiding to 2 feet or less. 
.wednesday...southeast winds 5 to 15 knots becoming south and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 4 to
7 feet. waves occasionally around 9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 040750
glflh 
expires:202604041600;;807017

open lake forecast for lake huron
national weather service detroit/pontiac mi
350 am edt sat apr 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 low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lhz363-462-041600-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
350 am edt sat apr 4 2026

.today...east winds 15 to 20 knots veering to the southeast late
in the afternoon. rain. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.tonight...south winds 10 to 15 knots becoming southwest 15 to
20 knots in the late evening and overnight. a chance of rain in
the evening. waves 4 to 6 feet. waves occasionally around 8 feet.
.sunday...west winds 15 to 20 knots. gusts to 30 knots early in
the morning then 30 knots early in the afternoon. waves 6 to
9 feet. waves occasionally around 12 feet. 
.sunday night...west winds 15 to 20 knots decreasing to 5 to
10 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.monday...west winds 5 to 10 knots becoming northwest 10 to
15 knots late in the afternoon...then increasing to 20 to
25 knots with gusts to around 30 knots late in the evening. a
chance of rain late in the morning. a chance of snow. waves 3 to
5 feet subsiding to 1 to 3 feet late in the morning...then
building to 2 to 4 feet late in the afternoon building to 8 to
12 feet late in the evening. waves occasionally around 15 feet. 
.tuesday...north winds 20 to 25 knots with gusts to around
30 knots becoming northwest 10 to 15 knots until early evening...
then backing to the south 10 to 15 knots by midnight. waves 8 to
12 feet subsiding to 3 to 5 feet . waves occasionally around
15 feet. 
.wednesday...south winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 35 knot gales. a chance of rain by
midnight. waves 6 to 9 feet. waves occasionally around 12 feet. 


$$

fzus63 kdtx 040750
glflh 
expires:202604041600;;807016

open lake forecast for lake huron
national weather service detroit/pontiac mi
350 am edt sat apr 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 low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lhz361-362-041600-
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-
350 am edt sat apr 4 2026

.today...east winds 20 to 25 knots decreasing to 15 to 20 knots
late in the afternoon. isolated gusts to 35 knot gales. rain. 
waves 8 to 12 feet. waves occasionally around 15 feet. 
.tonight...southeast winds 10 to 15 knots veering to the south
late in the evening...then becoming southwest 15 to 20 knots with
gusts to around 30 knots after midnight. waves 4 to 6 feet. 
.sunday...west winds 20 to 25 knots with gusts to 35 knot gales.
waves 10 to 14 feet. waves occasionally around 18 feet. 
.sunday night...northwest winds 20 to 25 knots with gusts to
around 30 knots becoming west 5 to 10 knots. waves 8 to 12 feet
subsiding to 5 to 7 feet after midnight. waves occasionally
around 15 feet. 
.monday...west winds 5 to 10 knots becoming northwest 20 to
25 knots with gusts to around 30 knots. a chance of snow. waves
3 to 5 feet subsiding to 1 to 3 feet late in the morning...then
building to 3 to 5 feet late in the afternoon building to 8 to
12 feet late in the evening. waves occasionally around 15 feet. 
.tuesday...north winds 15 to 20 knots becoming northwest 10 to
15 knots in the late morning and early afternoon...then becoming
west 5 to 10 knots early in the evening becoming south 10 to
15 knots by midnight. waves 8 to 12 feet subsiding to 3 to 5 feet
. waves occasionally around 15 feet. 
.wednesday...south winds 15 to 20 knots increasing to 30 knots
with gusts to 35 knot gales. a chance of snow early in the
evening. a chance of rain . waves 8 to 12 feet. waves
occasionally around 15 feet. 


$$

fzus63 kdtx 040750
glflh 
expires:202604041600;;807018

open lake forecast for lake huron
national weather service detroit/pontiac mi
350 am edt sat apr 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 low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lhz463-464-041600-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
350 am edt sat apr 4 2026

.today...east winds 10 to 15 knots becoming southeast 15 to
20 knots in the late morning and afternoon. rain in the morning...
then rain and a chance of thunderstorms in the afternoon. waves
1 to 3 feet building to 3 to 5 feet in the late morning and
afternoon. 
.tonight...south winds 10 to 15 knots veering to the southwest by
midnight...then increasing to 15 to 20 knots early in the
morning. rain in the evening. waves 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. waves 3 to 5 feet. 
.sunday night...west winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet. 
.monday...west winds 5 to 10 knots veering to the northwest late
in the morning...then increasing to 10 to 15 knots late in the
afternoon increasing to 20 to 25 knots with gusts to around
30 knots late in the evening. a chance of rain late in the
morning. a chance of snow. waves 2 to 4 feet subsiding to 1 to
3 feet late in the morning...then building to 8 to 12 feet late
in the evening. waves occasionally around 15 feet. 
.tuesday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming north 10 to 15 knots in the late morning and
early afternoon...then becoming northeast 5 to 10 knots early in
the evening becoming south 10 to 15 knots by midnight. waves 8 to
12 feet subsiding to 2 to 4 feet. waves occasionally around
15 feet. 
.wednesday...south winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots by midnight. a chance of.
waves 5 to 7 feet building to 6 to 9 feet by midnight. waves
occasionally around 12 feet. 


$$

fzus63 kdtx 040750
glfsc 
expires:202604041600;;807021

lake st clair forecast
national weather service detroit/pontiac mi
350 am edt sat apr 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 low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lcz460-041600-
lake st clair-
350 am edt sat apr 4 2026

.today...southeast winds 10 to 15 knots becoming south 15 to 20
knots late in the afternoon. a chance of rain in the morning.. then
rain and a chance of thunderstorms in the afternoon. waves 1 to 3
feet.
.tonight...southwest winds 10 to 15 knots becoming west 15 to 20
knots after midnight. rain and a chance of thunderstorms early in
the evening...then a chance of light rain late in the evening. waves
1 to 3 feet.
.sunday...west winds 15 to 20 knots. mostly cloudy. waves 1 to 3
feet.
.sunday night...west winds 15 to 20 knots diminishing to 5 to 10
knots. partly cloudy. waves 2 feet or less.
.monday...west winds 5 to 10 knots becoming northwest 15 to 20
knots. mostly cloudy in the morning becoming partly cloudy. a chance
of light rain in the afternoon and evening. a chance of light snow
in the evening. waves 2 feet or less.
.tuesday...southeast winds 15 to 20 knots. mostly clear. waves 2
feet or less.
.wednesday...south winds 15 to 20 knots. partly cloudy. waves 1 to 3
feet.

$$

fzus63 kdtx 040141
glflh 
expires:202604040945;;792523

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt fri apr 3 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 low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lhz462>464-040945-
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-
941 pm edt fri apr 3 2026

.rest of tonight...north winds 10 to 15 knots veering to the
northeast early in the morning. waves 1 to 3 feet building to
2 to 4 feet early in the morning. 
.saturday...east winds 10 to 15 knots becoming southeast 15 to
20 knots in the afternoon. rain. waves 3 to 5 feet. 
.saturday night...south winds 10 to 15 knots veering to the
southwest by midnight...then increasing to 15 to 20 knots after
midnight. rain in the evening. waves 3 to 5 feet. 
.sunday...west winds 15 to 20 knots. gusts to 30 knots early in
the morning. waves 5 to 7 feet. waves occasionally around
10 feet. 
.sunday night...west winds 15 to 20 knots decreasing to 5 to
10 knots. waves 4 to 6 feet. 
.monday...west winds 5 to 10 knots becoming northwest 10 to
15 knots late in the afternoon...then increasing to 30 knots late
in the evening. a chance of rain and snow late in the morning. a
chance of snow late in the evening. waves 3 to 5 feet subsiding
to 1 to 3 feet late in the morning...then building to 8 to
12 feet late in the evening. waves occasionally around 15 feet. 
.tuesday...northwest winds to 30 knots becoming north 10 to
15 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots early in the evening becoming
southeast 10 to 15 knots by midnight. waves 8 to 12 feet
subsiding to 2 to 4 feet. waves occasionally around 15 feet. 
.wednesday...south winds 15 to 20 knots increasing to 30 knots
with gusts to 35 knot gales. a chance of. waves 5 to 7 feet
building to 6 to 9 feet by midnight. waves occasionally around
12 feet. 


$$

fzus63 kdtx 040141
glflh 
expires:202604040945;;792521

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt fri apr 3 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 low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lhz361-040945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
941 pm edt fri apr 3 2026

.rest of tonight...north winds 10 to 15 knots becoming east 15 to
20 knots with gusts to around 30 knots after midnight. a chance
of rain after midnight. waves 1 to 3 feet building to 4 to
6 feet. waves occasionally around 8 feet. 
.saturday...east winds 20 to 25 knots decreasing to 15 to
20 knots late in the afternoon. gusts to 35 knot gales. rain.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.saturday night...southeast winds 10 to 15 knots becoming
southwest 15 to 20 knots with gusts to around 30 knots in the
late evening and overnight. waves 4 to 6 feet. 
.sunday...west winds 20 to 25 knots with gusts to 35 knot gales.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.sunday night...northwest winds 15 to 20 knots with gusts to
around 30 knots becoming west 5 to 10 knots. waves 6 to 9 feet
subsiding to 3 to 5 feet after midnight. waves occasionally
around 12 feet. 
.monday...west winds 5 to 10 knots increasing to 10 to 15 knots
late in the morning...then becoming northwest 20 to 25 knots with
gusts to around 30 knots late in the afternoon. a chance of snow.
waves 1 to 3 feet building to 6 to 9 feet. waves occasionally
around 12 feet. 
.tuesday...north winds 15 to 20 knots becoming northwest 10 to
15 knots in the late morning and early afternoon...then backing
to the southwest . waves 4 to 6 feet subsiding to 1 to 3 feet .
waves occasionally around 8 feet. 
.wednesday...south winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots early in the evening increasing to
30 knots with gusts to 35 knot gales by midnight. a chance of
snow. a chance of rain in the late morning and early afternoon...
then rain likely . waves 6 to 9 feet. waves occasionally around
12 feet. 


$$

fzus63 kdtx 040141
glflh 
expires:202604040945;;792522

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt fri apr 3 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 low pressure system tracks from the mid-mississippi
valley into the straits by saturday evening. cooler westerly flow
follows this system sunday, with a series of weak clipper systems
expected to track through monday into tuesday.


lhz362-363-040945-
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-
941 pm edt fri apr 3 2026

.rest of tonight...north winds 10 to 15 knots becoming east 15 to
20 knots early in the morning. waves 3 to 5 feet. 
.saturday...east winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the afternoon.
rain. waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday night...southeast winds 10 to 15 knots veering to the
southwest by midnight...then increasing to 15 to 20 knots after
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 
.sunday...west winds 20 to 25 knots with gusts to around
30 knots. waves 10 to 14 feet. waves occasionally around 18 feet.
.sunday night...northwest winds 15 to 20 knots with gusts to
around 30 knots becoming west 10 to 15 knots after midnight.
waves 8 to 12 feet subsiding to 5 to 7 feet after midnight. waves
occasionally around 15 feet. 
.monday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then becoming northwest 15 to 20 knots late
in the afternoon increasing to 30 knots late in the evening. a
chance of snow and rain late in the morning. a chance of snow
late in the evening. waves 3 to 5 feet subsiding to 1 to 3 feet
late in the morning...then building to 3 to 5 feet late in the
afternoon building to 8 to 12 feet late in the evening. waves
occasionally around 15 feet. 
.tuesday...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots in the late morning and
early afternoon...then decreasing to 5 to 10 knots early in the
evening becoming south 10 to 15 knots by midnight. waves 8 to
12 feet subsiding to 3 to 5 feet . waves occasionally around
15 feet. 
.wednesday...south winds 20 to 25 knots increasing to 30 knots.
gusts to 35 knot gales. a chance of snow until early evening. a
chance of rain . waves 8 to 12 feet. waves occasionally around
15 feet. 


$$

fzus63 kmkx 040754
glflm 
expires:202604041530;;807108

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 am cdt sat apr 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...

east to northeast winds will continue to gust near 30 kt through 
the morning, with a few gales expected in the far northern 
portions of the lake. winds will gradually veer through the day 
as low pressure around 29.6 inches crosses the northern portions 
of the lake. scattered thunderstorms over the south half of the 
lake will move out by daybreak. as low pressure exits into 
ontario and deepens to 29.3 inches, expect winds to become 
westerly and gust again around 30 kt through tonight.

winds veer northwesterly and gradually diminish through sunday as
low pressure exits into northern quebec. a weak low around 30.0
inches in southern quebec will bring gusty conditions again 
sunday night into monday morning, with winds remaining
northwesterly. as low pressure exits into monday night, expect a
few gales to develop and winds to shift northerly. high pressure
builds into the upper midwest into tuesday, with winds becoming
light and variable. winds shift back to southerly as low pressure
develops in the northern plains into wednesday.


lmz261-362-364-366-563-565-567-868-041530-
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-
254 am cdt sat apr 4 2026

sheboygan wi to pentwater mi north...

.today...east winds to 30 kt with a few gale force gusts up to 35
kt, veering to southwest to 30 kt in the afternoon. rain showers 
and freezing rain. waves 5 to 8 ft occasionally to 10 ft 
subsiding to 4 to 6 ft occasionally to 8 ft.
.tonight...southwest winds to 30 kt becoming west. waves 4 to
6 ft occasionally to 8 ft building to 6 to 9 ft occasionally to
12 ft. 
.sunday...northwest winds to 30 kt becoming west 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to 5 ft. 
.sunday night...west winds 10 to 20 kt diminishing to 10 to
15 kt. chance of rain showers in the evening. waves 2 to 4 ft. 
.monday...northwest winds 10 to 20 kt increasing to 30 kt in the
afternoon. chance of snow showers in the afternoon. waves 2 to
4 ft building to 4 to 7 ft occasionally to 9 ft. 
.monday night...north gales to 35 kt diminishing to 30 kt. waves
8 to 11 ft occasionally to 14 ft. 
.tuesday...northwest winds 15 to 25 kt backing to southwest 10 to
15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 1 to
3 ft. 
.wednesday...south gales to 35 kt. chance of rain and snow
showers. waves 12 to 16 ft occasionally to 21 ft.  

$$

fzus63 kmkx 040754
glflm 
expires:202604041530;;807109

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 am cdt sat apr 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...

east to northeast winds will continue to gust near 30 kt through 
the morning, with a few gales expected in the far northern 
portions of the lake. winds will gradually veer through the day 
as low pressure around 29.6 inches crosses the northern portions 
of the lake. scattered thunderstorms over the south half of the 
lake will move out by daybreak. as low pressure exits into 
ontario and deepens to 29.3 inches, expect winds to become 
westerly and gust again around 30 kt through tonight.

winds veer northwesterly and gradually diminish through sunday as
low pressure exits into northern quebec. a weak low around 30.0
inches in southern quebec will bring gusty conditions again 
sunday night into monday morning, with winds remaining
northwesterly. as low pressure exits into monday night, expect a
few gales to develop and winds to shift northerly. high pressure
builds into the upper midwest into tuesday, with winds becoming
light and variable. winds shift back to southerly as low pressure
develops in the northern plains into wednesday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-041530-
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-
254 am cdt sat apr 4 2026

sheboygan wi to pentwater mi south...

.today...southeast winds to 30 kt veering to southwest in the
afternoon. rain showers likely with slight chance of 
thunderstorms this morning, then slight chance of rain showers 
this afternoon. waves 5 to 8 ft occasionally to 10 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.tonight...west winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft building to 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.sunday night...west winds 10 to 15 kt increasing to 10 to 20 kt.
chance of rain showers. waves 3 to 5 ft. 
.monday...northwest winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft. 
.monday night...north winds to 30 kt. waves 8 to 11 ft
occasionally to 14 ft. 
.tuesday...north winds 15 to 25 kt becoming northeast 5 to 10 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to 5 ft. 
.wednesday...south gales to 35 kt. waves 10 to 14 ft occasionally
to 18 ft.  

$$

fzus63 kmqt 040816
glfls 
expires:202604041630;;808523

open lake forecast for lake superior
national weather service marquette mi
416 am edt sat apr 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...

this morning, lake superior is between a low of 29.8 inches in 
southern wisconsin and a high of 30.6 inches over northern quebec. 
the low deepens to 29.7 inches over the straits of mackinac today 
before further deepening to 29.4 inches over western quebec by 
sunday morning. a weak 30.1 inch trough passes over the lake sunday 
night into monday. monday afternoon, 30.6 inch high pressure resides 
over north dakota before moving over wisconsin tuesday morning. the 
high shifts to the lower great lakes tuesday night as a 29.5 inch
low organizes along the montana/saskatchewan border. this low 
moves over the northwest angle wednesday night before moving north
of the lake through thursday morning.



lsz162-041630-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
416 am edt sat apr 4 2026 /316 am cdt sat apr 4 2026/

...gale warning in effect until 2 pm edt /1 pm cdt/ this
afternoon...

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

$$

fzus63 kmqt 040816
glfls 
expires:202604041630;;808524

open lake forecast for lake superior
national weather service marquette mi
416 am edt sat apr 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...

this morning, lake superior is between a low of 29.8 inches in 
southern wisconsin and a high of 30.6 inches over northern quebec. 
the low deepens to 29.7 inches over the straits of mackinac today 
before further deepening to 29.4 inches over western quebec by 
sunday morning. a weak 30.1 inch trough passes over the lake sunday 
night into monday. monday afternoon, 30.6 inch high pressure resides 
over north dakota before moving over wisconsin tuesday morning. the 
high shifts to the lower great lakes tuesday night as a 29.5 inch
low organizes along the montana/saskatchewan border. this low 
moves over the northwest angle wednesday night before moving north
of the lake through thursday morning.



lsz263-041630-
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-
416 am edt sat apr 4 2026

...gale warning in effect until 2 pm edt this afternoon...

.early this morning...east gales to 35 knots. snow likely with
pockets of sleet and rain. waves 7 to 10 feet occasionally to
13 feet. 
.today...east gales to 35 knots becoming northeast 20 to 30 knots
late. sleet, possibly mixed with rain through early afternoon.
snow. a slight chance of rain showers and sleet by mid afternoon.
waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.tonight...north winds 15 to 25 knots becoming northwest 20 to
30 knots after midnight. snow showers likely through midnight,
then a slight chance of snow showers after midnight. waves
subsiding to 3 to 6 feet occasionally to 8 feet, then building to
4 to 7 feet occasionally to 9 feet. 
.sunday...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. waves subsiding to 1 to 3 feet. 
.sunday night...west winds 5 to 15 knots becoming north 15 to
25 knots after midnight. a chance of snow showers, possibly mixed
with rain. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.monday...north winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. snow showers likely through early
afternoon. freezing spray. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.monday night...north winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.tuesday...west winds 10 to 20 knots becoming south 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...south winds 15 to 25 knots becoming west 20 to
30 knots. a chance of rain showers, possibly mixed with snow.
waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 040816
glfls 
expires:202604041630;;808525

open lake forecast for lake superior
national weather service marquette mi
416 am edt sat apr 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...

this morning, lake superior is between a low of 29.8 inches in 
southern wisconsin and a high of 30.6 inches over northern quebec. 
the low deepens to 29.7 inches over the straits of mackinac today 
before further deepening to 29.4 inches over western quebec by 
sunday morning. a weak 30.1 inch trough passes over the lake sunday 
night into monday. monday afternoon, 30.6 inch high pressure resides 
over north dakota before moving over wisconsin tuesday morning. the 
high shifts to the lower great lakes tuesday night as a 29.5 inch
low organizes along the montana/saskatchewan border. this low 
moves over the northwest angle wednesday night before moving north
of the lake through thursday morning.



lsz264-041630-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
416 am edt sat apr 4 2026

...gale warning in effect until 2 pm edt this afternoon...

.early this morning...east winds 20 to 30 knots. snow likely.
waves 5 to 8 feet occasionally to 10 feet. 
.today...east gales to 35 knots diminishing to 15 to 25 knots.
snow, possibly mixed with sleet. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.tonight...north winds 10 to 20 knots increasing to 20 to
30 knots after midnight. snow showers likely through midnight,
then a chance of snow showers 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...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon, then becoming west 10 to 20 knots
late. waves subsiding to 1 to 3 feet. 
.sunday night...north winds 5 to 15 knots increasing to 15 to
25 knots after midnight. a chance of rain showers through
midnight. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.monday...north winds 20 to 30 knots. freezing spray. a chance of
snow showers. waves building to 4 to 8 feet occasionally to
10 feet. 
.monday night...north winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight. freezing spray through midnight.
waves subsiding to 2 to 4 feet. 
.tuesday...west winds 10 to 20 knots becoming south 20 to
30 knots. waves subsiding to 1 to 3 feet, then building to 6 to
9 feet occasionally to 11 feet. 
.wednesday...south gales to 35 knots veering west. a chance of
rain and snow showers. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 

$$

fzus63 kmqt 040816
glfls 
expires:202604041630;;808526

open lake forecast for lake superior
national weather service marquette mi
416 am edt sat apr 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...

this morning, lake superior is between a low of 29.8 inches in 
southern wisconsin and a high of 30.6 inches over northern quebec. 
the low deepens to 29.7 inches over the straits of mackinac today 
before further deepening to 29.4 inches over western quebec by 
sunday morning. a weak 30.1 inch trough passes over the lake sunday 
night into monday. monday afternoon, 30.6 inch high pressure resides 
over north dakota before moving over wisconsin tuesday morning. the 
high shifts to the lower great lakes tuesday night as a 29.5 inch
low organizes along the montana/saskatchewan border. this low 
moves over the northwest angle wednesday night before moving north
of the lake through thursday morning.



lsz265-041630-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
416 am edt sat apr 4 2026

...gale warning in effect until 2 pm edt this afternoon...

.early this morning...east gales to 35 knots. sleet, possibly
mixed with snow and rain likely. waves 5 to 8 feet occasionally
to 10 feet. 
.today...east gales to 35 knots diminishing to 10 to 20 knots.
sleet, possibly mixed with snow, rain and freezing rain. waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 10 to 20 knots increasing to gales to
35 knots. a chance of rain showers through midnight. a chance of
snow showers. waves subsiding to 2 to 4 feet, then building to
6 to 9 feet occasionally to 11 feet. 
.sunday...northwest gales to 35 knots diminishing to 15 to
25 knots. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 2 to 4 feet. 
.sunday night...west winds 10 to 20 knots veering northwest after
midnight. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.monday...north gales to 35 knots. freezing spray. snow showers
likely through early afternoon. a chance of snow showers by mid
afternoon. waves building to 8 to 11 feet occasionally to
14 feet. 
.monday night...north winds 20 to 30 knots becoming northwest
15 to 25 knots after midnight. freezing spray through midnight.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots becoming south gales to
35 knots. waves subsiding to calm to 2 feet, then building to
6 to 9 feet occasionally to 11 feet. 
.wednesday...south gales to 40 knots becoming west gales to
35 knots. a chance of rain showers. a chance of snow showers.
rain showers likely. waves building to 7 to 10 feet occasionally
to 13 feet, then subsiding to 5 to 8 feet occasionally to
10 feet. 

$$

fzus63 kmqt 040816
glfls 
expires:202604041630;;808527

open lake forecast for lake superior
national weather service marquette mi
416 am edt sat apr 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...

this morning, lake superior is between a low of 29.8 inches in 
southern wisconsin and a high of 30.6 inches over northern quebec. 
the low deepens to 29.7 inches over the straits of mackinac today 
before further deepening to 29.4 inches over western quebec by 
sunday morning. a weak 30.1 inch trough passes over the lake sunday 
night into monday. monday afternoon, 30.6 inch high pressure resides 
over north dakota before moving over wisconsin tuesday morning. the 
high shifts to the lower great lakes tuesday night as a 29.5 inch
low organizes along the montana/saskatchewan border. this low 
moves over the northwest angle wednesday night before moving north
of the lake through thursday morning.



lsz266-041630-
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-
416 am edt sat apr 4 2026

...gale warning in effect until 2 pm edt this afternoon...

.early this morning...east winds 20 to 30 knots. sleet with snow,
possibly mixed with rain. waves 4 to 8 feet occasionally to
10 feet. 
.today...east gales to 35 knots diminishing to 15 to 25 knots.
freezing rain through early afternoon. snow and sleet, possibly
mixed with rain. waves building to 6 to 9 feet occasionally to
11 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.tonight...west winds 10 to 20 knots becoming northwest 20 to
30 knots after midnight, then increasing to gales to 35 knots
late. a chance of snow showers, possibly mixed with rain. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
8 to 11 feet occasionally to 14 feet. 
.sunday...northwest gales to 35 knots diminishing to 15 to
25 knots. a slight chance of snow showers through early
afternoon. waves building to 9 to 12 feet occasionally to
15 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. 
.sunday night...northwest winds 5 to 15 knots becoming north
10 to 20 knots after midnight. a slight chance of snow showers.
waves subsiding to 1 to 3 feet. 
.monday...north gales to 35 knots. freezing spray. a chance of
snow showers. waves building to 10 to 14 feet occasionally to
18 feet. 
.monday night...north winds 20 to 30 knots becoming northwest
15 to 25 knots after midnight. freezing spray. waves subsiding to
4 to 7 feet occasionally to 9 feet. 
.tuesday...west winds 10 to 20 knots becoming south gales to
35 knots. waves subsiding to 1 to 3 feet, then building to 8 to
11 feet occasionally to 14 feet. 
.wednesday...south gales to 40 knots veering southwest. snow
showers likely. rain showers likely. a chance of snow showers.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 8 to 11 feet occasionally to 14 feet. 

$$

fzus63 kmqt 040816
glfls 
expires:202604041630;;808528

open lake forecast for lake superior
national weather service marquette mi
416 am edt sat apr 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...

this morning, lake superior is between a low of 29.8 inches in 
southern wisconsin and a high of 30.6 inches over northern quebec. 
the low deepens to 29.7 inches over the straits of mackinac today 
before further deepening to 29.4 inches over western quebec by 
sunday morning. a weak 30.1 inch trough passes over the lake sunday 
night into monday. monday afternoon, 30.6 inch high pressure resides 
over north dakota before moving over wisconsin tuesday morning. the 
high shifts to the lower great lakes tuesday night as a 29.5 inch
low organizes along the montana/saskatchewan border. this low 
moves over the northwest angle wednesday night before moving north
of the lake through thursday morning.



lsz267-041630-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
416 am edt sat apr 4 2026

.early this morning...east winds 20 to 30 knots. sleet, possibly
mixed with snow and rain likely. waves 3 to 5 feet occasionally
to 7 feet. 
.today...east winds 20 to 30 knots diminishing to 15 to 25 knots
late. freezing rain and snow through early afternoon. sleet with
rain. waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 2 to 4 feet. 
.tonight...southeast winds 10 to 20 knots becoming west 20 to
30 knots after midnight, then becoming northwest to 30 knots with
a few gale force gusts to 35 knots possible late. a chance of
rain and snow showers. waves subsiding to calm to 2 feet, then
building to 7 to 10 feet occasionally to 13 feet. 
.sunday...northwest winds to 30 knots with a few gale force gusts
to 40 knots possible diminishing to 20 to 30 knots late. a slight
chance of snow showers through early afternoon. waves building to
9 to 12 feet occasionally to 15 feet, then subsiding to 4 to
7 feet occasionally to 9 feet. 
.sunday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...north winds 15 to 25 knots increasing to 20 to 30 knots
by mid afternoon. a chance of snow showers. freezing spray by mid
afternoon. waves building to 7 to 10 feet occasionally to
13 feet. 
.monday night...north winds 20 to 30 knots diminishing to 10 to
20 knots after midnight. freezing spray. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...west winds 10 to 20 knots becoming south 20 to
30 knots. waves subsiding to 1 to 3 feet, then building to 6 to
9 feet occasionally to 11 feet. 
.wednesday...south gales to 40 knots. snow showers likely. rain
showers likely. waves building to 9 to 12 feet occasionally to
15 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. 

$$