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fzus61 kbuf 160235
glflo 
721 

open lake forecast for lake ontario
national weather service buffalo ny
935 pm est fri jan 15 2021

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 29.3 inch low will move across the upper great 
lakes tonight and saturday while pulling a cold front across the 
lake this evening. this low will then redevelop across eastern 
canada while deepening to 28.9 inches on sunday and will drift 
slowly northward on monday. a 30.3 inch high will then build
across the southeastern states monday night and tuesday.

loz062-161015-
lake ontario open waters from the niagara river to hamlin beach-
935 pm est fri jan 15 2021

.overnight...southeast winds 15 to 25 knots becoming
southwest and diminishing to 10 to 15 knots. rain, then a chance
of rain late. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.saturday...west winds 10 to 15 knots increasing to 15 to
20 knots. waves 2 to 4 feet building to 3 to 5 feet. 
.saturday night...west winds 15 to 25 knots increasing to
30 knots. a chance of snow showers overnight. waves 3 to 6 feet
building to 6 to 10 feet. waves occasionally around 13 feet. 
.sunday...west winds to 30 knots. a chance of snow showers in the
morning, then snow showers likely in the afternoon. waves 6 to
10 feet subsiding to 5 to 8 feet. waves occasionally around
13 feet. 
.sunday night...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. snow showers. waves 4 to 7 feet
subsiding to 1 to 3 feet. waves occasionally around 9 feet. 
.monday...northwest winds 10 to 15 knots becoming west 5 to
10 knots. snow showers likely during the day, then a chance of
snow showers monday night. waves 1 to 3 feet building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.tuesday...west winds 10 to 15 knots increasing to 15 to
20 knots. a chance of snow and rain showers. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 2 feet. 

$$
fzus61 kbuf 160235
glflo 

loz063>065-161015-
lake ontario open waters from hamlin beach to the saint lawrence
river-
935 pm est fri jan 15 2021

.overnight...southeast winds 15 to 25 knots becoming south
and diminishing to 10 to 15 knots. rain, then rain and snow late.
waves 4 to 7 feet subsiding to 2 to 4 feet. waves occasionally
around 9 feet. 
.saturday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. rain and snow. waves 1 to 3 feet building to 3 to
6 feet. 
.saturday night...west winds to 30 knots. snow showers likely.
waves 5 to 9 feet building to 7 to 11 feet. waves occasionally
around 14 feet. 
.sunday...west winds to 30 knots. snow showers likely in the
morning, then snow in the afternoon. waves 8 to 12 feet subsiding
to 6 to 9 feet. waves occasionally around 15 feet. 
.sunday night...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. snow showers. waves 5 to 8 feet
subsiding to 2 to 4 feet. waves occasionally around 10 feet. 
.monday...northwest winds 10 to 15 knots. snow showers likely
during the day, then a chance of snow showers monday night. waves
1 to 3 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 
.tuesday...west winds 5 to 15 knots increasing to 15 to 20 knots.
a chance of snow showers. waves 1 to 3 feet building to 2 to
4 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 5 to
15 knots. a chance of snow showers during the day. waves 3 to
5 feet subsiding to 1 to 3 feet. 

$$
fzus61 kcle 160259
glfle 
289 

open lake forecast for lake erie
national weather service cleveland oh
959 pm est fri jan 15 2021

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...
low pressure 29.40 inches near lake michigan will slowly move to 
near lake huron by saturday morning, weakening to 29.50 inches. 
an occluded frontal boundary will cross the east of the lake
tonight with a trough averaging 29.70 inches remaining over the 
eastern great lakes through monday. another low pressure system 
29.90 inches will move southeast across the great lakes on tuesday.

lez162-163-160915-
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-
959 pm est fri jan 15 2021

.rest of tonight...south winds 5 to 10 knots. a slight chance of
snow showers. waves 1 foot or less. 
.saturday...southwest winds 10 knots or less becoming west 10 to
15 knots. a slight chance of snow and rain showers in the
afternoon. waves 2 feet or less. 
.saturday night...west winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.sunday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain and snow showers. waves 1 to 3 feet. 
.sunday night...southwest winds 10 to 15 knots becoming west. a
chance of snow showers. waves 1 to 2 feet. 
.monday...west winds 10 to 15 knots becoming southwest. a chance
of snow showers during the day. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of snow and rain showers during the day. waves
1 to 3 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 1 to 3 feet. 

$$
fzus61 kcle 160259
glfle 

lez061-167>169-160915-
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-
959 pm est fri jan 15 2021

.rest of tonight...southwest winds 15 to 20 knots becoming south
10 to 15 knots. a chance of rain and snow showers late this
evening, then a slight chance of rain and snow showers after
midnight. waves 1 to 3 feet. 
.saturday...south winds 5 to 15 knots becoming west. a slight
chance of rain and snow showers in the afternoon. waves 1 to
3 feet. 
.saturday night...west winds 15 to 25 knots. a chance of rain and
snow showers. waves 2 to 4 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.sunday...west winds 20 to 25 knots. a chance of rain and snow
showers. waves 5 to 8 feet. waves occasionally around 10 feet. 
.sunday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow and rain showers in the evening, then
snow showers likely overnight. waves 4 to 7 feet subsiding to
3 to 6 feet. waves occasionally around 9 feet. 
.monday...west winds 10 to 15 knots increasing to 15 to 20 knots.
snow showers likely during the day, then a chance of snow showers
monday night. waves 2 to 4 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west. a chance
of snow and rain showers during the day, then a chance of snow
showers tuesday night. waves 3 to 6 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 
.wednesday...west winds 15 to 25 knots becoming southwest 15 to
20 knots. a chance of snow showers during the day. waves 4 to
7 feet subsiding to 2 to 4 feet. waves occasionally around
9 feet. 

$$
fzus61 kcle 160259
glfle 

lez164>166-160915-
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-
959 pm est fri jan 15 2021

.rest of tonight...south winds 5 to 15 knots. a slight chance of
rain and snow showers. waves 1 to 3 feet. 
.saturday...south winds 5 to 15 knots becoming west. a slight
chance of snow showers from late morning on. waves 2 feet or
less. 
.saturday night...west winds 15 to 25 knots. waves 1 to 3 feet
building to 3 to 6 feet. 
.sunday...west winds 15 to 25 knots. a chance of rain and snow
showers. waves 3 to 6 feet. 
.sunday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. a chance of snow showers. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.monday...west winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of snow showers during the day. waves 2 to
4 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west. a chance
of snow and rain showers during the day, then a chance of snow
showers tuesday night. waves 3 to 6 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest. waves
3 to 6 feet subsiding to 2 to 4 feet. 

$$
fzus63 kdtx 160244
glflh 
423 

open lake forecast for lake huron
national weather service detroit/pontiac mi
944 pm est fri jan 15 2021

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure centered over illinois, averaging 29.50 inches, 
continues to weaken heading into tonight as it slowly drifts 
eastward towards the northern ohio valley by saturday. a series of 
fronts associated with the system will remain in place over the 
central great lakes during this time. a secondary area of broad low 
pressure, 29.70 inches, then tracks southeast across the great lakes 
for the latter part of the weekend before weak ridging averaging 
near 30.00 inches attempts to build into the region for early next 
week.

lhz361-160900-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
944 pm est fri jan 15 2021

.rest of tonight...east winds 15 to 20 knots becoming northeast
10 to 15 knots after midnight. rain and snow likely. waves 5 to
7 feet. waves occasionally around 10 feet. 
.saturday...north winds 10 to 15 knots. rain and snow likely in
the morning...then a chance of rain and snow in the afternoon.
waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. 
.saturday night...north winds 10 to 15 knots. a chance of snow in
the evening. a chance of rain. waves 2 to 4 feet. 
.sunday...northwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet early in the afternoon. 
.sunday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots after midnight. waves 1 to 3 feet. 
.monday...north winds 5 to 10 knots becoming light and variable.
waves 2 feet or less. 
.tuesday...north winds 5 to 10 knots becoming northwest 10 to
15 knots until early morning. a chance of snow early in the
morning. waves 2 feet or less. 
.wednesday...northwest winds 10 to 15 knots backing to the
southwest early in the evening...then increasing to 15 to
20 knots in the late evening and early morning. waves 1 to 3 feet
building to 3 to 5 feet in the late evening and early morning. 


$$
fzus63 kdtx 160244
glflh 

lhz362-363-160900-
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-
944 pm est fri jan 15 2021

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


$$
fzus63 kdtx 160244
glflh 

lhz462>464-160900-
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-
944 pm est fri jan 15 2021

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


$$
fzus63 kdtx 160244
glfsc 
957 

lake st clair forecast
national weather service detroit/pontiac mi
944 pm est fri jan 15 2021

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...low pressure centered over illinois, averaging 29.50 inches, 
continues to weaken heading into tonight as it slowly drifts 
eastward towards the northern ohio valley by saturday. a series of 
fronts associated with the system will remain in place over the 
central great lakes during this time. a secondary area of broad low 
pressure, 29.70 inches, then tracks southeast across the great lakes 
for the latter part of the weekend before weak ridging averaging 
near 30.00 inches attempts to build into the region for early next 
week.

lcz460-160900-
lake st clair-
944 pm est fri jan 15 2021

.rest of tonight...southwest winds 5 to 10 knots in the late evening
and early morning becoming light and variable. partly cloudy. waves
2 feet or less.
.saturday...light and variable winds becoming west 10 to 15 knots.
mostly cloudy. waves 2 feet or less.
.saturday night...west winds 10 to 15 knots. mostly cloudy. waves 2
feet or less.
.sunday...west winds 10 to 15 knots diminishing to 5 to 10 knots
early in the afternoon. mostly cloudy. waves 2 feet or less.
.sunday night...west winds 5 to 10 knots. cloudy with a chance of
snow. waves 2 feet or less.
.monday...west winds 5 to 10 knots increasing to 10 to 15 knots in
the evening. mostly cloudy. waves 2 feet or less.
.tuesday...west winds 10 to 15 knots. mostly cloudy. waves 2 feet or
less.
.wednesday...southwest winds 10 to 15 knots. mostly cloudy. waves 2
feet or less.

$$
fzus63 kmkx 160254
glflm 

lmz567-669-868-870-161030-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
854 pm cst fri jan 15 2021

two rivers wi to manistee mi south to port washington wi to
whitehall mi...

.rest of tonight...west winds 10 to 15 kt becoming northwest
10 to 20 kt after midnight, then becoming north 15 to 25 kt late.
rain and snow. waves 2 to 4 ft building to 4 to 6 ft occasionally
to 8 ft. 
.saturday...north winds 15 to 25 kt becoming northwest. rain and
snow likely in the morning, then chance of rain and snow in the
afternoon. waves 5 to 8 ft occasionally to 10 ft. 
.saturday night...northwest winds 15 to 25 kt diminishing to
10 to 20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.sunday...northwest winds 10 to 15 kt. chance of rain and snow in
the afternoon. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday night...north winds 10 to 20 kt becoming northwest.
chance of rain and snow in the evening. waves 2 to 4 ft. 
.monday...northwest winds 10 to 15 kt becoming west. waves 2 to
4 ft. 
.monday night...west winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday...west winds 10 to 20 kt. waves 3 to 5 ft. 
.wednesday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.  

$$
fzus63 kmkx 160254
glflm 

lmz080-671-673-675-777-779-872-874-876-878-161030-
lake michigan from michigan city in to st. joseph mi 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 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-
854 pm cst fri jan 15 2021

port washington wi to whitehall mi south...

.rest of tonight...west winds 5 to 10 kt increasing to 10 to
20 kt. slight chance of rain and snow through early evening, then
rain likely with a chance of snow overnight. waves 1 to 3 ft. 
.saturday...west winds 15 to 25 kt becoming northwest. snow and
rain likely in the morning, then chance of rain and snow in the
afternoon. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.saturday night...northwest winds to 30 kt diminishing to 10 to
20 kt. chance of rain and snow in the evening. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.sunday...northwest winds 10 to 15 kt. chance of rain in the
morning, then chance of rain and snow in the afternoon. waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday night...northwest winds 10 to 15 kt increasing to 10 to
20 kt. chance of rain and snow in the evening. waves 2 to 4 ft. 
.monday...northwest winds 10 to 20 kt becoming west. waves 2 to
4 ft. 
.monday night...west winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday...west winds 10 to 20 kt. waves 3 to 5 ft. 
.wednesday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.  

$$
fzus63 kmkx 160254
glflm 
086 

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
854 pm cst fri jan 15 2021

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

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

.synopsis... 

low pressure of 29.6 inches will remain in the vicinity of central
lake michigan tonight then shifting east saturday morning. as the
low slowly moves east, brisk north winds will develop from north 
to south across the western half of lake michigan late tonight and
saturday morning. brisk northwest winds are then expected across 
the entire lake by saturday afternoon and continue into the night.
the low will continue to move away with lighter northwest winds
for sunday. 


&&

lmz261-362-364-366-563-565-161030-
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-
854 pm cst fri jan 15 2021

two rivers wi to manistee mi north...

.rest of tonight...northeast winds 15 to 25 kt. rain and snow
likely through early evening, then rain and snow overnight. waves
4 to 7 ft occasionally to 9 ft. 
.saturday...north winds 15 to 25 kt. chance of rain and snow.
waves 4 to 7 ft occasionally to 9 ft. 
.saturday night...north winds 15 to 25 kt becoming northwest
10 to 20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.sunday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft. 
.monday...north winds 10 to 15 kt becoming northwest 5 to 10 kt.
waves 1 to 3 ft. 
.monday night...west winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday...west winds 15 to 25 kt becoming southwest gales to
35 kt. waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft.  

$$
fzus63 kmkx 152107
glflm 
316 

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
307 pm cst fri jan 15 2021

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

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

.synopsis... 

low pressure of 29.4 inches centered over western illinois will 
continue to shift to the south before shifting eastward tonight. 
an additional low pressure center of 29.6 inches will develop over
lake michigan this evening bringing a front through tonight into
saturday morning shifting winds to the northwest. the low will
continue to shift eastward bringing lighter winds to the area
saturday night into sunday, with calmer conditions expected into
next week. 

&&

lmz261-362-364-366-563-565-567-868-160415-
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-
307 pm cst fri jan 15 2021

sheboygan wi to pentwater mi north...

.tonight...northeast winds 15 to 25 kt. rain and snow likely.
waves 4 to 7 ft occasionally to 9 ft. 
.saturday...north winds 15 to 25 kt. chance of rain and snow.
waves 4 to 7 ft occasionally to 9 ft. 
.saturday night...north winds 15 to 25 kt becoming northwest
10 to 20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.sunday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of rain in the afternoon. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.sunday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft. 
.monday...north winds 10 to 15 kt becoming northwest. waves 2 to
4 ft. 
.monday night...west winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday...northwest winds 10 to 20 kt. waves 3 to 5 ft. 
.wednesday...west winds 15 to 25 kt becoming southwest gales to
35 kt. waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft.  

$$
fzus63 kmkx 152107
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-160415-
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-
307 pm cst fri jan 15 2021

sheboygan wi to pentwater mi south...

.tonight...southwest winds 10 to 15 kt becoming west 10 to 20 kt.
slight chance of rain and snow this evening, then snow and rain
likely overnight. waves 1 to 3 ft building to 2 to 4 ft. 
.saturday...northwest winds 15 to 25 kt. chance of rain and snow.
waves 5 to 8 ft occasionally to 10 ft. 
.saturday night...northwest winds to 30 kt diminishing to 10 to
20 kt. chance of rain in the evening. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.sunday...northwest winds 10 to 15 kt. chance of rain in the
morning, then chance of rain and snow in the afternoon. waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday night...northwest winds 10 to 20 kt. chance of rain and
snow in the evening. waves 2 to 4 ft. 
.monday...northwest winds 10 to 20 kt becoming west. waves 2 to
4 ft. 
.monday night...west winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday...west winds 10 to 20 kt. waves 3 to 5 ft. 
.wednesday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.  

$$
fzus63 kmqt 160237
glfls 

lsz267-161045-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
937 pm est fri jan 15 2021

.rest of tonight...east winds 15 to 25 knots becoming northeast
10 to 20 knots by midnight, then increasing to 15 to 25 knots
late. patchy fog. a chance of drizzle and snow. waves 2 to 4 feet
subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.saturday...northeast winds 15 to 25 knots backing north by mid
afternoon. a chance of snow and drizzle. waves building to 3 to 6
feet occasionally to 8 feet. 
.saturday night...north winds 15 to 25 knots. a slight chance of
snow showers. waves subsiding to 2 to 4 feet. 
.sunday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...northeast winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.monday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...east winds 10 to 20 knots. a chance of snow
showers. waves calm to 2 feet. 
.tuesday...north winds 15 to 25 knots backing northwest. a chance
of snow showers. waves building to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots becoming southwest 20 to
30 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 

$$
fzus63 kmqt 160237
glfls 

lsz266-161045-
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-
937 pm est fri jan 15 2021

.rest of tonight...northeast winds 15 to 25 knots. patchy fog. a
chance of drizzle and snow. waves 3 to 5 feet occasionally to
7 feet building to 4 to 7 feet occasionally to 9 feet. 
.saturday...northeast winds 20 to 30 knots backing north by mid
afternoon. patchy fog in the morning. a chance of snow and
drizzle. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...north winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a slight chance of snow showers. waves
subsiding to 1 to 3 feet. 
.sunday night...north winds 10 to 20 knots veering northeast
after midnight. waves subsiding to calm to 2 feet. 
.monday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...northeast winds 10 to 20 knots backing north
after midnight. a chance of snow showers. waves building to 1 to
3 feet. 
.tuesday...north winds 15 to 25 knots backing northwest. a chance
of snow showers. waves building to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 

$$
fzus63 kmqt 160237
glfls 

lsz263-161045-
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-
937 pm est fri jan 15 2021

.rest of tonight...northeast winds 15 to 25 knots becoming north
20 to 30 knots by midnight. a chance of drizzle and snow. waves 4
to 7 feet occasionally to 9 feet subsiding to 3 to 6 feet 
occasionally to 8 feet. 
.saturday...north winds 20 to 30 knots diminishing to 10 to
20 knots. a chance of snow and drizzle. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...north winds 10 to 20 knots. a slight chance of
snow showers. waves subsiding to 2 to 4 feet. 
.sunday...north winds 10 to 20 knots. a slight chance of snow
showers. waves subsiding to 1 to 3 feet. 
.sunday night...north winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.monday...north winds 10 to 20 knots. a chance of snow showers in
the afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of snow showers. waves building
to 1 to 3 feet. 
.tuesday...north winds 15 to 25 knots backing northwest. a chance
of snow showers. waves building to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$
fzus63 kmqt 160237
glfls 
280 

open lake forecast for lake superior
national weather service marquette mi
937 pm est fri jan 15 2021

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...a 29.6 inch low moves across lower michigan tonight 
and deepens to 29.1 inches while tracking through new england on 
saturday night. a 29.8 inch trough over lake superior gradually
weakens to a through sunday morning, gradually weakening to a 
30.0 inch trough by monday evening. weak 30.1 inch ridging moves 
over lake superior on tuesday. a broad 29.2 inch low is expected 
to sink southeast across manitoba on wednesday morning and is
expected to approach lake superior on wednesday night. 

lsz162-161045-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
937 pm est fri jan 15 2021 /837 pm cst fri jan 15 2021/

.rest of tonight...northeast winds 10 to 20 knots becoming north
15 to 25 knots by midnight. a chance of snow or drizzle. waves 4 
to 7 feet occasionally to 9 feet subsiding to 3 to 5 feet 
occasionally to 7 feet. 
.saturday...north winds 15 to 25 knots diminishing to 10 to
20 knots. a slight chance of drizzle in the morning. a slight
chance of snow. waves subsiding to 2 to 4 feet. 
.saturday night...north winds 10 to 20 knots. a slight chance of
snow showers. waves subsiding to 1 to 3 feet. 
.sunday...north winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon. a slight chance of snow showers in the morning.
waves subsiding to calm to 2 feet. 
.sunday night...north winds 5 to 15 knots backing northwest after
midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots. a chance of snow
showers. waves calm to 2 feet. 
.tuesday...northwest winds 10 to 20 knots backing west. a chance
of snow showers. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.wednesday...southwest winds 15 to 25 knots veering west. waves
building to 3 to 5 feet occasionally to 7 feet. 

$$
fzus63 kmqt 160237
glfls 

lsz264-161045-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
937 pm est fri jan 15 2021

.rest of tonight...northeast winds 10 to 20 knots increasing to
15 to 25 knots by midnight, then backing north late. a chance of
drizzle. a slight chance of snow after midnight. waves 3 to
6 feet occasionally to 8 feet building to 4 to 7 feet
occasionally to 9 feet. 
.saturday...north winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. a slight chance of drizzle in the
morning. a chance of snow. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...north winds 10 to 20 knots. a chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...north winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon. a slight chance of snow showers in the morning.
waves subsiding to 1 to 3 feet. 
.sunday night...north winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.monday...northeast winds 5 to 15 knots. a chance of snow showers
in the afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots. a chance of snow
showers. waves building to 2 to 4 feet. 
.tuesday...north winds 10 to 20 knots backing northwest. a chance
of snow showers. waves subsiding to 1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 6 feet occasionally to 8 feet. 

$$
fzus63 kmqt 160237
glfls 

lsz265-161045-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
937 pm est fri jan 15 2021

.rest of tonight...northeast winds 10 to 20 knots becoming north
15 to 25 knots by midnight. patchy fog. a chance of drizzle and
snow. waves 3 to 6 feet occasionally to 8 feet. 
.saturday...north winds 20 to 30 knots diminishing to 15 to
25 knots. patchy fog in the morning. a chance of snow and
drizzle. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...north winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a slight chance of snow showers. waves
subsiding to 1 to 3 feet. 
.sunday night...north winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.monday...north winds 10 to 20 knots backing northwest in the
afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of snow showers. waves building
to 1 to 3 feet. 
.tuesday...northwest winds 15 to 25 knots. a chance of snow
showers. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.wednesday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 2 to 4 feet. 

$$

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