fzus61 kbuf 162347
glflo 
916 

glflo 

open lake forecast for lake ontario
national weather service buffalo ny
630 pm est sat jan 16 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 29.5 inch low over the upper great lakes will 
dissolve while low pressure of 29.4 inches along the east 
coast deepens to 29.0 inches as it lifts over northern new 
england by sunday morning. this low will then deepen to 28.8 
inches through monday as it drifts slowly northward to labrador 
canada. a 30.3 inch high will then build across the southeastern 
states monday night and tuesday.

loz062-170400-
lake ontario open waters from the niagara river to hamlin beach-
630 pm est sat jan 16 2021

.tonight...west winds to 30 knots. a chance of rain and snow
showers after midnight. waves 4 to 7 feet building to 8 to
11 feet. waves occasionally around 14 feet. 
.sunday...west winds to 30 knots. a chance of rain and snow
showers. waves 8 to 11 feet subsiding to 4 to 7 feet. waves
occasionally around 14 feet. 
.sunday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. snow and rain showers likely in the evening, then
a chance of snow showers overnight. waves 3 to 6 feet subsiding
to 1 to 3 feet. 
.monday...northwest winds 15 to 20 knots becoming west. a chance
of snow showers. waves 1 to 3 feet building to 2 to 4 feet. 
.monday night...northwest winds 5 to 15 knots becoming west. a
chance of snow showers. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.tuesday...west winds 15 to 25 knots. a chance of snow showers.
waves 2 to 4 feet building to 4 to 7 feet, then subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of snow showers during the day. waves 2 to
4 feet. 
.thursday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of rain and snow showers. waves 2 to 4 feet
building to 3 to 5 feet. 

$$

fzus61 kbuf 162347
glflo 

loz063>065-170400-
lake ontario open waters from hamlin beach to the saint lawrence
river-
630 pm est sat jan 16 2021

.tonight...west winds to 30 knots. a chance of rain and snow
showers. waves 6 to 9 feet building to 10 to 14 feet. waves
occasionally around 18 feet. 
.sunday...west winds to 30 knots. a chance of rain and snow
showers. waves 10 to 14 feet subsiding to 7 to 11 feet. waves
occasionally around 18 feet. 
.sunday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. snow and rain showers likely in the evening, then a
chance of snow showers overnight. waves 5 to 9 feet subsiding to
2 to 4 feet. waves occasionally around 11 feet. 
.monday...northwest winds 15 to 20 knots. a chance of snow
showers. waves 2 to 4 feet. 
.monday night...northwest winds 15 to 20 knots diminishing to
5 to 15 knots. a chance of snow showers. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots. snow showers likely. waves
1 to 3 feet building to 4 to 7 feet, then subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.wednesday...northwest winds 15 to 20 knots becoming southwest
10 to 15 knots. a chance of snow showers during the day. waves
3 to 5 feet subsiding to 1 to 3 feet. 
.thursday...south winds 15 to 20 knots becoming west. a chance of
snow and rain showers. waves 1 to 3 feet building to 3 to 5 feet.

$$

fzus61 kcle 170217
glfle 
084 

open lake forecast for lake erie
national weather service cleveland oh
917 pm est sat jan 16 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...
a trough averaging 29.70 inches will linger across the great 
lakes through tuesday. between tuesday morning and wednesday 
morning, low pressure 29.90 inches should move from the upper 
great lakes to the new england coast. this low is followed by a 
ridge averaging 30.20 inches building from the ohio valley to lake
erie tuesday night through wednesday. low pressure 29.40 inches 
will move over the upper great lakes wednesday night into thursday,
bringing a cold front east across lake erie thursday morning.

lez162>164-170915-
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-
917 pm est sat jan 16 2021

.overnight...west winds 15 to 20 knots. a chance of snow
showers. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. a slight chance of rain and snow showers in the
morning, then snow showers likely with a chance of rain showers
in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...southwest winds 5 to 15 knots becoming west. snow
showers likely with a chance of rain showers in the evening, then
a chance of snow showers overnight. waves 1 to 2 feet. 
.monday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 1 to 3 feet. 
.monday night...west winds 15 to 20 knots. waves 2 to 4 feet. 
.tuesday...west winds 15 to 20 knots. waves 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest. waves
1 to 3 feet. 
.thursday...southwest winds 15 to 20 knots becoming west. waves
1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

$$

fzus61 kcle 170217
glfle 

lez165-166-170915-
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-
917 pm est sat jan 16 2021

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

$$

fzus61 kcle 170217
glfle 

lez061-167>169-170915-
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-
917 pm est sat jan 16 2021

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

$$

fzus63 kdtx 170228
glfsc 
071 

lake st clair forecast
national weather service detroit/pontiac mi
928 pm est sat jan 16 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...broad low pressure, averaging 29.50 inches, will continue to 
straddle the central great lakes the remainder of today before 
slowly drifting eastward towards the northeast tonight and into 
sunday. 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.

lcz460-170900-
lake st clair-
928 pm est sat jan 16 2021

.rest of tonight...west winds 5 to 10 knots. cloudy with scattered
snow showers. waves 2 feet or less.
.sunday...west winds 5 to 10 knots. mostly cloudy with scattered
snow showers. waves 2 feet or less.
.sunday night...west winds 5 to 10 knots. cloudy with snow likely.
waves 2 feet or less.
.monday...west winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. mostly cloudy. waves 2 feet or less.
.monday night...west winds 10 to 15 knots. mostly cloudy. waves 2
feet or less.
.tuesday...west winds 10 to 15 knots increasing to 15 to 20 knots in
the afternoon...then diminishing to 10 to 15 knots in the evening.
mostly cloudy. waves 1 to 3 feet.
.wednesday...southwest winds 10 to 15 knots. mostly cloudy. waves 2
feet or less.
.thursday...west winds 10 to 15 knots. mostly cloudy. waves 2 feet
or less.

$$

fzus63 kdtx 170227
glflh 

lhz362-363-170900-
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-
927 pm est sat jan 16 2021

.rest of tonight...west winds 10 to 15 knots becoming northwest
15 to 20 knots after midnight. scattered showers this evening.
scattered snow showers. waves 2 to 4 feet. 
.sunday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. waves 3 to 5 feet. 
.sunday night...north winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.monday...north winds 5 to 10 knots until late afternoon becoming
light and variable. waves 1 to 3 feet. 
.monday night...light and variable winds becoming west 5 to
10 knots in the late evening and overnight. waves 1 to 3 feet. 
.tuesday...west winds 10 to 15 knots increasing to 15 to
20 knots. waves 4 to 6 feet. 
.wednesday...west winds 10 to 15 knots becoming southwest 15 to
20 knots early in the evening...then increasing to 20 to 25 knots
with gusts to around 30 knots in the late evening and early
morning. waves 3 to 5 feet building to 6 to 9 feet in the late
evening and early morning. waves occasionally around 12 feet. 
.thursday...west winds 15 to 20 knots with gusts to around
30 knots. a chance of rain early in the morning. waves 5 to
7 feet. waves occasionally around 10 feet. 


$$

fzus63 kdtx 170227
glflh 

lhz462>464-170900-
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-
927 pm est sat jan 16 2021

.rest of tonight...west winds 10 to 15 knots. scattered snow
showers and showers this evening. waves 2 to 4 feet. 
.sunday...west winds 10 to 15 knots becoming northwest 5 to
10 knots late in the afternoon. waves 3 to 5 feet. 
.sunday night...northwest winds 5 to 10 knots becoming north
10 to 15 knots after midnight. waves 2 to 4 feet subsiding to
1 to 3 feet in the late evening and overnight. 
.monday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.monday night...west winds 5 to 10 knots increasing to 10 to
15 knots after midnight. waves 1 to 3 feet building to 2 to
4 feet after midnight. 
.tuesday...west winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday...west winds 15 to 20 knots decreasing to 10 to
15 knots until early evening...then becoming southwest 15 to
20 knots in the late evening and early morning. waves 3 to
5 feet. 
.thursday...west winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 


$$

fzus63 kdtx 170227
glflh 
764 

open lake forecast for lake huron
national weather service detroit/pontiac mi
927 pm est sat jan 16 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...broad low pressure, averaging 29.50 inches, will continue to 
straddle the central great lakes the remainder of today before 
slowly drifting eastward towards the northeast tonight and into 
sunday. 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.

lhz361-170900-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
927 pm est sat jan 16 2021

.rest of tonight...northwest winds 10 to 15 knots. scattered
showers this evening. scattered snow showers. waves 1 to 3 feet. 
.sunday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. scattered snow showers in the morning.
waves 1 to 3 feet. 
.sunday night...north winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 1 to 3 feet. 
.monday...north winds 5 to 10 knots early in the morning becoming
light and variable. waves 2 feet or less. 
.monday night...light and variable winds becoming southwest 5 to
10 knots after midnight. waves 2 feet or less. 
.tuesday...west winds 10 to 15 knots becoming northwest 15 to
20 knots late in the afternoon...then decreasing to 10 to
15 knots late in the evening. waves 1 to 3 feet building to 3 to
5 feet. 
.wednesday...west winds 5 to 10 knots becoming southwest 10 to
15 knots until early evening...then increasing to 15 to 20 knots
in the late evening and early morning. a chance of snow until
early morning. waves 1 to 3 feet building to 3 to 5 feet until
early morning. 
.thursday...west winds 15 to 20 knots. a chance of rain and snow
until afternoon. waves 3 to 5 feet. 


$$

fzus63 kmkx 170301
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-171100-
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-
901 pm cst sat jan 16 2021

sheboygan wi to pentwater mi south...

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

$$

fzus63 kmkx 170301
glflm 
311 

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
901 pm cst sat jan 16 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... 

modest northwest winds will continue tonight into sunday night. 
winds will increase slightly and shift to the west northwest 
for monday and tuesday as low pressure of 29.9 inches moves across
the northern great lakes. strong low pressure will then move
across manitoba and ontario wednesday and thursday with brisk
southwest winds developing on wednesday and shifting west for
thursday. a cold frontal passage will then shift the winds to
brisk northwesterly for late thursday night and friday. gales may
become possible for the middle to late portions of the week. 

&&

lmz261-362-364-366-563-565-567-868-171100-
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-
901 pm cst sat jan 16 2021

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmqt 170241
glfls 

lsz264-171045-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
941 pm est sat jan 16 2021

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

$$

fzus63 kmqt 170241
glfls 

lsz265-171045-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
941 pm est sat jan 16 2021

.rest of tonight...north winds 10 to 20 knots increasing to 15 to
25 knots by midnight. a chance of snow showers. waves 3 to 6 feet
occasionally to 8 feet. 
.sunday...north winds 15 to 25 knots diminishing to 10 to
20 knots. a slight chance of snow showers in the morning. waves
subsiding to 1 to 3 feet. 
.sunday night...north winds 10 to 20 knots diminishing to 5 to
15 knots late. a slight chance of snow showers after midnight.
waves subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering north in the
afternoon. a chance of snow showers. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. snow showers likely in the evening, then
a chance of snow showers after midnight. freezing spray after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...northwest winds 15 to 25 knots. freezing spray. a
chance of snow showers in the morning. snow showers likely in the
afternoon. waves subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. freezing spray in the evening. a
chance of snow showers. waves subsiding to 1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...west winds 20 to 30 knots veering northwest. a chance
of snow showers. freezing spray. waves building to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 170241
glfls 

lsz266-171045-
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-
941 pm est sat jan 16 2021

.rest of tonight...north winds 15 to 25 knots. a chance of snow
showers. waves 3 to 6 feet occasionally to 8 feet. 
.sunday...north winds 15 to 25 knots diminishing to 10 to
20 knots. a slight chance of snow showers in the morning. waves
subsiding to 1 to 3 feet. 
.sunday night...north winds 10 to 20 knots veering northeast by
midnight, then diminishing to 5 to 15 knots late. a slight chance
of snow showers after midnight. waves subsiding to calm to
2 feet. 
.monday...east winds 5 to 15 knots backing northeast in the
afternoon. a chance of snow showers. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. snow showers likely in the evening, then
a chance of snow showers after midnight. freezing spray after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...north winds 15 to 25 knots backing northwest in the
afternoon. freezing spray. a chance of snow showers. waves 3 to
5 feet occasionally to 7 feet. 
.tuesday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. freezing spray. a chance of snow
showers. waves subsiding to 2 to 4 feet. 
.wednesday...southwest winds 20 to 30 knots. a chance of snow
showers. waves building to 5 to 8 feet occasionally to 10 feet. 
.thursday...west winds 20 to 30 knots veering northwest. a chance
of snow showers, then snow showers likely. freezing spray. waves
subsiding to 4 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 170241
glfls 

lsz267-171045-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
941 pm est sat jan 16 2021

.rest of tonight...northeast winds 10 to 20 knots becoming north
15 to 25 knots by midnight. a slight chance of snow showers.
waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to
4 feet. 
.sunday...north winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots late. waves subsiding to calm to 2 feet. 
.monday...east winds 5 to 15 knots. a slight chance of snow
showers in the afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots becoming north 10 to
20 knots after midnight. a chance of snow showers. waves calm to
2 feet. 
.tuesday...north winds 15 to 25 knots backing northwest in the
afternoon. snow showers likely. freezing spray in the afternoon.
waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. freezing spray in the evening.
snow showers likely in the evening, then a chance of snow showers
after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots increasing to gales
to 35 knots. snow showers likely. waves building to 4 to 8 feet
occasionally to 10 feet. 
.thursday...west winds 20 to 30 knots veering northwest. snow
showers likely. waves building to 5 to 8 feet occasionally to
10 feet. 

$$

fzus63 kmqt 170241
glfls 
205 

open lake forecast for lake superior
national weather service marquette mi
941 pm est sat jan 16 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 29.8 inch surface trough lingers over lake superior
through monday while a surface low deepens to 28.9 inches over 
the canadian maritimes on sunday. on monday night, a weak 29.9 
inch low develops over lake superior until a 30.2 inch ridge 
builds over the lake on tuesday night. a broad 29.1 inch low is 
expected to sink southeast across manitoba on wednesday until it 
tracks through ontario wednesday night and thursday. 

lsz162-171045-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
941 pm est sat jan 16 2021 /841 pm cst sat jan 16 2021/

.rest of tonight...northeast winds 5 to 15 knots becoming north
10 to 20 knots by midnight. a slight chance of snow showers.
waves 1 to 3 feet. 
.sunday...north winds 10 to 20 knots diminishing to 5 to 15 knots
by late morning, then backing northwest by mid afternoon. waves
subsiding to calm to 2 feet. 
.sunday night...northwest winds 10 to 20 knots veering north by
midnight, then backing northwest late. a slight chance of snow
showers. waves calm to 2 feet. 
.monday...northwest winds 10 to 20 knots. a chance of snow
showers. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots backing northwest
after midnight. waves building to 1 to 3 feet. 
.tuesday...northwest winds 10 to 20 knots. waves 1 to 3 feet. 
.tuesday night...west winds 10 to 20 knots. waves 1 to 3 feet. 
.wednesday...southwest winds 20 to 30 knots veering west. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots becoming northwest 15 to
25 knots. freezing spray. waves subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 170241
glfls 

lsz263-171045-
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-
941 pm est sat jan 16 2021

.rest of tonight...north winds 10 to 20 knots increasing to 15 to
25 knots late. a chance of snow showers. waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet. 
.sunday...north winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. a slight chance of snow showers. waves
subsiding to calm to 2 feet. 
.sunday night...north winds 5 to 15 knots. a chance of snow
showers. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. a chance of snow showers. waves building to
1 to 3 feet. 
.monday night...north winds 15 to 25 knots. a chance of snow
showers. freezing spray after midnight. waves building to 2 to
4 feet. 
.tuesday...north winds 10 to 20 knots backing northwest in the
afternoon. freezing spray in the morning. a chance of snow
showers. waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 10 to 20 knots backing west
after midnight. waves building to 2 to 4 feet. 
.wednesday...southwest winds 20 to 30 knots veering west. waves
building to 4 to 8 feet occasionally to 10 feet. 
.thursday...west winds 20 to 30 knots veering northwest. a chance
of snow showers. freezing spray. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 

$$