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fzus61 kbuf 201152
glflo 

loz063>065-201615-
lake ontario open waters from hamlin beach to the saint lawrence
river-
652 am est mon nov 20 2017

.today...northwest winds to 30 knots becoming west 15 to
25 knots. lake effect snow this morning, then a chance of lake
effect snow showers early this afternoon. lake effect snow
showers likely late. waves 5 to 9 feet. waves occasionally around
11 feet. 
.tonight...southwest winds 15 to 25 knots. lake effect snow
showers likely early, then a chance of snow showers late in the
evening. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.tuesday...southwest winds 15 to 25 knots. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.tuesday night...southwest winds 15 to 25 knots becoming west.
rain showers likely. waves 3 to 6 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of snow showers during the day. waves 3 to
6 feet subsiding to 2 to 4 feet. 
.thursday...southwest winds 15 to 20 knots becoming west. a
chance of rain and snow showers during the day, then snow and
rain showers likely thursday night. waves 2 to 4 feet building to
3 to 6 feet. 
.friday...northwest winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. a chance of rain and snow showers
during the day, then a chance of rain showers friday night. waves
3 to 5 feet building to 3 to 6 feet. 

$$
fzus61 kbuf 201152
glflo 
328 

open lake forecast for lake ontario
national weather service buffalo ny
652 am est mon nov 20 2017

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...expansive high pressure over the deep south will slide 
off the atlantic coastline tonight. a 29.1 inch low just south of
james bay on tuesday will push a cold front across the lake tuesday
night...then high pressure over the plains states will build across
the ohio valley and lower great lakes wednesday and thursday.

loz062-201615-
lake ontario open waters from the niagara river to hamlin beach-
652 am est mon nov 20 2017

.today...west winds 20 to 25 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.tonight...southwest winds 15 to 25 knots. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.tuesday...southwest winds to 30 knots. a chance of showers in
the afternoon. waves 5 to 8 feet. waves occasionally around
10 feet. 
.tuesday night...southwest winds 15 to 25 knots becoming west.
rain showers likely. waves 3 to 6 feet. 
.wednesday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.thursday...southwest winds 15 to 20 knots becoming west. a
chance of snow showers thursday night. waves 2 to 4 feet building
to 3 to 5 feet. 
.friday...west winds around 10 knots becoming southwest and
increasing to 15 to 25 knots. a chance of rain showers friday
night. waves 2 to 4 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 

$$
fzus61 kcle 200915
glfle 

lez061-165>169-201515-
lake erie open waters from ripley to buffalo ny-
lake erie open waters from vermilion to avon point oh-
lake erie open waters from avon point to willowick oh-
lake erie open waters from willowick to geneva-on-the-lake oh-
lake erie open waters from geneva-on-the-lake to conneaut oh-
lake erie open waters from conneaut oh to ripley ny-
415 am est mon nov 20 2017

.today...west winds to 30 knots becoming southwest. a slight
chance of snow showers early. waves 5 to 9 feet. waves
occasionally around 11 feet. 
.tonight...southwest winds to 30 knots. waves 6 to 10 feet
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.tuesday...southwest winds to 30 knots. a chance of showers in
the afternoon. waves 5 to 9 feet. waves occasionally around
11 feet. 
.tuesday night...west winds 15 to 25 knots becoming northwest.
rain showers likely in the evening, then a chance of rain showers
overnight. waves 5 to 9 feet. waves occasionally around 11 feet. 
.wednesday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 4 to 7 feet subsiding to 1 to 2 feet. waves
occasionally around 9 feet. 
.thursday...southwest winds 15 to 20 knots becoming west. waves
1 to 3 feet building to 3 to 5 feet. 
.friday...west winds around 10 knots becoming southwest and
increasing to 15 to 25 knots. a chance of rain showers friday
night. waves 2 to 4 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 

$$
fzus61 kcle 200915
glfle 
223 

open lake forecast for lake erie
national weather service cleveland oh
415 am est mon nov 20 2017

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...high pressure 30.40 inches will slide east across the
ohio valley today and move off the east coast tuesday. low 
pressure 29.30 inches will track across james bay late tuesday, 
forcing a cold front across lake erie. a large area of high 
pressure 30.30 inches will move from the middle mississippi valley
on wednesday to the ohio valley by thursday, and then off the
mid-atlantic coast by friday.

lez162>164-201515-
lake erie open waters from maumee bay to reno beach oh-
lake erie open waters from reno beach to the islands oh-
lake erie open waters from the islands to vermilion oh-
415 am est mon nov 20 2017

.today...southwest winds 15 to 20 knots. waves 2 to 4 feet. 
.tonight...southwest winds to 30 knots. waves 3 to 6 feet. 
.tuesday...southwest winds to 30 knots becoming west. a chance of
rain showers in the afternoon. waves 3 to 5 feet. 
.tuesday night...west winds 15 to 20 knots becoming northwest. a
chance of rain showers in the evening. waves 3 to 5 feet. 
.wednesday...northwest winds 5 to 15 knots becoming southwest.
waves 2 to 4 feet subsiding to 1 foot or less. 
.thursday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.friday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. a chance of rain showers friday night. waves 1 to
3 feet building to 2 to 4 feet. 

$$
fzus63 kdtx 200740
glflh 

lhz463-464-202115-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
240 am est mon nov 20 2017

.today...southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 30 knots late in the afternoon. waves 3 to
5 feet building to 5 to 7 feet late in the afternoon. waves
occasionally around 10 feet. 
.tonight...southwest winds 20 to 25 knots becoming south to
30 knots early in the morning. gusts to 35 knot gales. waves 6 to
9 feet. waves occasionally around 12 feet. 
.tuesday...south winds to 30 knots with gusts to 35 knot gales
becoming southwest 15 to 20 knots. a chance of showers late in
the afternoon. waves 6 to 9 feet. waves occasionally around
12 feet. 
.tuesday night...northwest winds 20 to 25 knots with gusts to
30 knots. a chance of showers in the evening. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming west 5 to 10 knots
late in the afternoon increasing to 10 to 15 knots late in the
evening. waves 5 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 10 feet. 
.thursday...southwest winds 10 to 15 knots increasing to 15 to
20 knots until early evening...then becoming west 10 to 15 knots
in the late evening and early morning. waves 2 to 4 feet. 
.friday...west winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and early afternoon...then becoming
south 20 to 25 knots with gusts to 30 knots early in the evening
becoming southwest to 30 knots with gusts to 35 knot gales in the
late evening and early morning. a chance of showers in the
evening. showers likely after midnight. waves 1 to 3 feet
building to 6 to 9 feet. waves occasionally around 12 feet. 


$$
fzus63 kdtx 200740
glfsc 
252 

lake st clair forecast
national weather service detroit/pontiac mi
240 am est mon nov 20 2017

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...high pressure system, 30.10 inches, will slide east 
through the ohio valley today, with an extension of the ridge 
northward across the great lakes region. the next low pressure 
system, 29.20 inches, will move east along the southern tier of 
canada to just north of lake superior late tonight. southwest winds 
will increase between the departing high and the approaching low. 
the attendant cold front will clear the central great lakes region 
tuesday, ushering in another round of brisk northwesterly flow. high 
pressure will regain a foothold on wednesday.

lcz460-202115-
lake st clair-
240 am est mon nov 20 2017

.today...southwest winds 15 to 20 knots. partly sunny until late
afternoon then clearing. waves 1 to 3 feet.
.tonight...southwest winds 20 to 25 knots. clear. waves 2 to 4 feet.
.tuesday...southwest winds 20 to 25 knots diminishing to 15 to 20
knots late in the afternoon. partly sunny until late afternoon
becoming cloudy. a chance of light showers late in the afternoon.
waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon.
.tuesday night...northwest winds 15 to 20 knots. mostly cloudy with
a chance of light showers early in the evening...then partly cloudy
in the late evening and overnight. waves 1 to 3 feet.
.wednesday...northwest winds 10 to 15 knots becoming light and
variable. mostly clear. waves 2 feet or less.
.thursday...west winds 10 to 15 knots. partly cloudy. waves 2 feet
or less.
.friday...southwest winds 15 to 20 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$
fzus63 kdtx 200740
glflh 
038 

open lake forecast for lake huron
national weather service detroit/pontiac mi
240 am est mon nov 20 2017

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...high pressure system, 30.10 inches, will slide east 
through the ohio valley today, with an extension of the ridge 
northward across the great lakes region. the next low pressure 
system, 29.20 inches, will move east along the southern tier of 
canada to just north of lake superior late tonight. southwest winds 
will increase between the departing high and the approaching low. 
the attendant cold front will clear the central great lakes region 
tuesday, ushering in another round of brisk northwesterly flow. high 
pressure will regain a foothold on wednesday.

lhz361-202115-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
240 am est mon nov 20 2017

...gale warning in effect from tuesday morning through tuesday
evening...

.today...west winds 10 to 15 knots becoming south 5 to 10 knots
in the late morning and afternoon. waves 3 to 5 feet subsiding to
1 to 3 feet in the afternoon. 
.tonight...south winds 10 to 15 knots becoming southwest 15 to
20 knots after midnight. waves 2 to 4 feet building to 4 to
6 feet in the late evening and overnight. waves occasionally
around 8 feet. 
.tuesday...southwest winds 15 to 20 knots with gusts to 30 knots
becoming west 20 to 25 knots with gusts to 35 knot gales early in
the afternoon. a chance of showers in the late morning and
afternoon. a chance of snow showers in the afternoon. waves 6 to
9 feet. waves occasionally around 12 feet. 
.tuesday night...west winds to 30 knots with gusts to 35 knot
gales becoming northwest 10 to 15 knots. a chance of snow showers
and showers early in the evening. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.wednesday...west winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon...then building to
2 to 4 feet late in the evening. 
.thursday...west winds 15 to 20 knots becoming northwest 5 to
10 knots in the late evening and early morning. a chance of rain
and snow showers in the afternoon. waves 3 to 5 feet. 
.friday...west winds 5 to 10 knots becoming southwest 15 to
20 knots. a chance of rain and snow showers in the afternoon.
showers until early morning. snow showers late in the evening.
waves 2 feet or less building to 4 to 6 feet. waves occasionally
around 8 feet. 


$$
fzus63 kdtx 200740
glflh 

lhz362-202115-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
240 am est mon nov 20 2017

...gale warning in effect from this evening through late tuesday
night...

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


$$
fzus63 kdtx 200740
glflh 

lhz363-202115-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
240 am est mon nov 20 2017

...gale warning in effect from this evening through tuesday
morning...

.today...southwest winds 15 to 20 knots. gusts to 30 knots late
in the afternoon. waves 4 to 6 feet. 
.tonight...southwest winds 20 to 25 knots increasing to 30 knots
in the late evening and overnight. gusts to 35 knot gales. waves
6 to 9 feet building to 10 to 14 feet after midnight. waves
occasionally around 18 feet. 
.tuesday...south winds to 30 knots becoming southwest 20 to
25 knots in the late morning and afternoon. gusts to 35 knot
gales. a chance of showers in the afternoon. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.tuesday night...west winds 20 to 25 knots becoming northwest
15 to 20 knots after midnight. gusts to 35 knot gales. a chance
of showers early in the evening. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.wednesday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 5 to 7 feet subsiding to 2 to 4 feet late in the
afternoon. waves occasionally around 10 feet. 
.thursday...west winds 15 to 20 knots becoming northwest 10 to
15 knots in the late evening and early morning. waves 4 to
6 feet. waves occasionally around 8 feet. 
.friday...west winds 5 to 10 knots becoming southwest 15 to
20 knots with gusts to 30 knots in the late morning and early
afternoon...then increasing to 20 to 25 knots with gusts to
35 knot gales early in the evening increasing to 30 knots with
gusts to 35 knot gales in the late evening and early morning.
showers likely until early morning. snow showers likely late in
the evening. waves 2 to 4 feet building to 8 to 12 feet. waves
occasionally around 15 feet. 


$$
fzus63 kdtx 200740
glflh 

lhz462-202115-
lake huron from port austin to harbor beach beyond 5nm off shore-
240 am est mon nov 20 2017

...gale warning in effect from this evening through late
tonight...

.today...southwest winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.tonight...southwest winds 20 to 25 knots increasing to 30 knots
after midnight. gusts to 35 knot gales. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.tuesday...southwest winds 20 to 25 knots with gusts to 35 knot
gales. a chance of showers in the afternoon. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.tuesday night...northwest winds 20 to 25 knots with gusts to
30 knots. a chance of showers in the evening. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming west 5 to 10 knots
late in the afternoon becoming southwest 10 to 15 knots late in
the evening. waves 5 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.thursday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late evening and early morning. waves 3 to
5 feet. 
.friday...west winds 5 to 10 knots becoming southwest 10 to
15 knots with gusts to 30 knots in the late morning and early
afternoon...then becoming south 20 to 25 knots with gusts to
35 knot gales early in the evening becoming southwest to 30 knots
with gusts to 35 knot gales in the late evening and early
morning. showers likely until early morning. waves 2 to 4 feet
building to 6 to 9 feet. waves occasionally around 12 feet. 


$$
fzus63 klot 200832
glflm 
782 

open lake forecast for lake michigan
national weather service chicago/romeoville il
232 am cst mon nov 20 2017

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...high pressure averaging 30.2 inches centered across
much of the lower mississippi valley will shift to the 
southeastern u.s. today. low pressure of 29.2 inches will move 
from southern saskatchewan this morning to quebec late tuesday. 
broad high pressure of 30.4 inches will build across the central 
and northern great plains tuesday and gradually shift to the lower
mississippi valley thursday.

lmz261-362-364-366-563-565-567-868-201500-
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-
232 am cst mon nov 20 2017

sheboygan wi to pentwater mi north...

...gale warning in effect from this afternoon through tuesday
afternoon...

.today...west winds 15 to 25 kt becoming southwest to 30 kt by 
early afternoon...then increasing to gales to 35 kt by late 
afternoon. waves 4 to 6 ft occasionally to 8 ft building to 5 to 
8 ft occasionally to 10 ft. 
.tonight...southwest gales to 40 kt. waves building to 10 to 14 
ft occasionally to 18 ft. 
.tuesday...west gales to 35 kt becoming northwest. chance of 
snow in the afternoon. waves 8 to 11 ft occasionally to 14 ft 
subsiding to 6 to 9 ft occasionally to 12 ft. 
.tuesday night...northwest winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 
ft. 
.wednesday...northwest winds 10 to 20 kt becoming west. waves 3 
to 5 ft subsiding to 1 to 3 ft. 
.wednesday night...west winds 15 to 25 kt increasing to 30 kt.
waves 3 to 5 ft. 
.thursday...west winds 15 to 25 kt. waves 3 to 5 ft. 
.friday...south gales to 35 kt becoming southwest gales to 40 kt.
chance of rain. waves building to 8 to 11 ft occasionally to 14 
ft.

$$
fzus63 klot 200832
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-201500-
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-
232 am cst mon nov 20 2017

sheboygan wi to pentwater mi south...

...gale warning in effect from this afternoon through tuesday
afternoon...

.today...southwest winds to 30 kt increasing to gales to 35 kt 
this afternoon. waves 5 to 8 ft occasionally to 10 ft building 
to 7 to 10 ft occasionally to 13 ft. 
.tonight...southwest gales to 40 kt. waves 10 to 14 ft
occasionally to 18 ft.
.tuesday...southwest gales to 35 kt becoming northwest to 30 kt.
waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to 9 ft
occasionally to 12 ft.
.tuesday night...northwest winds to 30 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.wednesday...northwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.wednesday night...west winds 10 to 20 kt. waves 2 to 4 ft. 
.thursday...southwest winds 15 to 25 kt becoming west. waves 3 
to 5 ft. 
.friday...southwest winds to 30 kt increasing to gales to 35 
kt. waves 4 to 6 ft occasionally to 8 ft building to 6 to 9 ft 
occasionally to 12 ft.

$$
fzus63 kmqt 200830
glfls 

lsz265-201630-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
330 am est mon nov 20 2017

...gale warning in effect from tuesday morning through tuesday
evening...

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...south winds 5 to 15 knots increasing to 10 to 20 knots.
waves building to 2 to 4 feet. 
.tonight...southwest winds 15 to 25 knots becoming west 20 to
30 knots late. scattered rain showers, possibly mixed with snow
after midnight. waves building to 5 to 8 feet occasionally to
10 feet. 
.tuesday...west gales to 40 knots veering northwest. a chance of
snow showers, possibly mixed with rain in the morning, then snow
showers likely in the afternoon. waves building to 8 to 12 feet
occasionally to 15 feet. 
.tuesday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.wednesday...west winds 15 to 25 knots. a chance of snow showers.
waves subsiding to 1 to 3 feet. 
.wednesday night...west winds 15 to 25 knots increasing to 20 to
30 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...northwest winds 20 to 30 knots becoming southwest
10 to 20 knots. a chance of snow showers. waves subsiding to calm
to 2 feet. 
.friday...southwest winds 20 to 30 knots becoming west gales to
35 knots. a chance of rain showers, possibly mixed with snow.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. 

$$
fzus63 kmqt 200830
glfls 

lsz264-201630-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
330 am est mon nov 20 2017

...gale warning in effect from late tonight through tuesday
evening...

.early this morning...west winds less than 10 knots. waves 1 to
3 feet. 
.today...south winds 5 to 15 knots increasing to 10 to 20 knots.
waves subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...south winds 15 to 25 knots becoming west 20 to
30 knots by midnight, then increasing to gales to 35 knots late.
scattered snow and rain showers after midnight. waves building to
9 to 12 feet occasionally to 15 feet. 
.tuesday...northwest gales to 40 knots. a chance of snow showers.
waves subsiding to 8 to 11 feet occasionally to 14 feet, then
building to 9 to 12 feet occasionally to 15 feet. 
.tuesday night...northwest gales to 35 knots diminishing to 15 to
25 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.wednesday...west winds 10 to 20 knots. waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.wednesday night...west winds 15 to 25 knots. waves building to
4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 15 to 25 knots becoming southwest
10 to 20 knots. waves subsiding to 1 to 3 feet. 
.friday...southwest winds 20 to 30 knots becoming west gales to
35 knots. rain and snow showers likely, then a chance of rain and
snow showers. waves building to 7 to 10 feet occasionally to
13 feet. 

$$
fzus63 kmqt 200830
glfls 

lsz263-201630-
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-
330 am est mon nov 20 2017

...gale warning in effect from late tonight through tuesday
afternoon...

.early this morning...south winds less than 10 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.today...south winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves building to 1 to 3 feet. 
.tonight...southwest winds 20 to 30 knots becoming west gales to
40 knots by midnight. scattered snow and rain showers after
midnight. waves building to 9 to 12 feet occasionally to 15 feet.
.tuesday...northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. a chance of snow showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 
.tuesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.wednesday...west winds 10 to 20 knots. waves subsiding to 1 to
3 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.wednesday night...west winds 15 to 25 knots. waves building to
3 to 6 feet occasionally to 8 feet. 
.thursday...northwest winds 15 to 25 knots becoming south 10 to
20 knots. waves subsiding to calm to 2 feet. 
.friday...southwest winds 20 to 30 knots becoming west gales to
35 knots. a chance of rain showers, possibly mixed with snow.
waves building to 6 to 9 feet occasionally to 11 feet. 

$$
fzus63 kmqt 200830
glfls 

lsz266-201630-
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-
330 am est mon nov 20 2017

...gale warning in effect from tuesday morning through tuesday
evening...

.early this morning...west winds 5 to 15 knots. isolated snow
showers. waves 3 to 5 feet occasionally to 7 feet. 
.today...south winds 5 to 15 knots increasing to 15 to 25 knots.
waves subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...south winds 20 to 30 knots veering west late.
scattered rain showers after midnight. waves building to 8 to
11 feet occasionally to 14 feet. 
.tuesday...west gales to 40 knots becoming northwest gales to
45 knots. a chance of rain showers in the morning. snow showers
likely. waves building to 11 to 15 feet occasionally to 19 feet,
then subsiding to 10 to 14 feet occasionally to 18 feet. 
.tuesday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. snow showers likely. waves subsiding to
5 to 8 feet occasionally to 10 feet. 
.wednesday...northwest winds 15 to 25 knots backing west in the
afternoon. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.wednesday night...west winds 15 to 25 knots. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 20 to 30 knots becoming southwest
10 to 20 knots. a chance of snow showers. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 1 to 3 feet. 
.friday...south winds 20 to 30 knots becoming west gales to
35 knots. a chance of rain showers, possibly mixed with snow.
waves building to 4 to 8 feet occasionally to 10 feet. 

$$
fzus63 kmqt 200830
glfls 
161 

open lake forecast for lake superior
national weather service marquette mi
330 am est mon nov 20 2017

for waters beyond five 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 29.9 inch ridge of high pressure over the upper 
great lakes this morning will move to the lower great lakes this 
afternoon. a 29.3 inch low pressure over southern saskatchewan this 
morning will deepen to 29.1 inches as it moves north of lake 
superior tonight and reach james bay by tuesday afternoon. a 30.5 
inch high over the northern plains tuesday evening will drift south 
into the central plains wednesday morning and weaken to 30.3 inches 
over the ohio valley thursday morning as a 29.8 inch trough moves 
through the upper great lakes. a 30.0 inch ridge will move over the 
upper great lakes thu night and into the lower great lakes friday 
morning. a 29.1 inch low will move to lake winnipeg friday morning 
and deepen to 29.0 inches as it moves across central ontario friday 
evening.

lsz162-201630-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
330 am est mon nov 20 2017 /230 am cst mon nov 20 2017/

...gale warning in effect from late tonight through tuesday
afternoon...

.early this morning...south winds less than 10 knots. waves calm
to 2 feet. 
.today...south winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves calm to 2 feet. 
.tonight...southwest winds 20 to 30 knots veering west by
midnight, then increasing to gales to 35 knots late. isolated
snow showers after midnight. waves building to 7 to 10 feet
occasionally to 13 feet. 
.tuesday...northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. a chance of snow showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet. 
.tuesday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. a slight chance of snow showers.
waves subsiding to 1 to 3 feet. 
.wednesday...west winds 10 to 20 knots. waves building to 2 to
4 feet. 
.wednesday night...west winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.thursday...northwest winds 10 to 20 knots backing south. waves
subsiding to calm to 2 feet. 
.friday...southwest winds 15 to 25 knots becoming west 20 to
30 knots. a chance of rain showers, possibly mixed with snow.
waves building to 4 to 7 feet occasionally to 9 feet. 

$$
fzus63 kmqt 200830
glfls 

lsz267-201630-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
330 am est mon nov 20 2017

...gale warning in effect from tuesday morning through tuesday
evening...

.early this morning...west winds 10 to 20 knots. isolated snow
showers. waves 3 to 6 feet occasionally to 8 feet. 
.today...west winds 10 to 20 knots backing south by late morning,
then increasing to 15 to 25 knots by mid afternoon. isolated rain
and snow showers in the morning. waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet. 
.tonight...south winds 20 to 30 knots veering southwest by
midnight. scattered rain showers after midnight. waves building
to 5 to 8 feet occasionally to 10 feet. 
.tuesday...west gales to 35 knots becoming northwest gales to
45 knots. rain showers likely in the morning. snow showers
likely. waves building to 10 to 14 feet occasionally to 18 feet. 
.tuesday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. snow showers likely. waves subsiding to
5 to 8 feet occasionally to 10 feet. 
.wednesday...northwest winds 15 to 25 knots backing west in the
afternoon. a chance of snow showers. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.wednesday night...southwest winds 15 to 25 knots becoming west
20 to 30 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.thursday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 1 to 3 feet. 
.friday...south winds 20 to 30 knots becoming west gales to
35 knots. a chance of rain showers. a chance of snow showers.
rain showers likely. waves building to 9 to 12 feet occasionally
to 15 feet. 

$$

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