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fzus61 kbuf 212056
glflo 
184 

open lake forecast for lake ontario
national weather service buffalo ny
356 pm est tue feb 21 2017

for waters beyond five nautical miles of shore on lake ontario

.synopsis...a weak cold front will cross the lake through this 
evening. a broad area of weak high pressure averaging 30.0 inches 
will then remain in place from the ohio valley to the southeast 
states wednesday through thursday. a strong 29.2 inch low will 
then move from northern illinois on friday through the central 
great lakes friday night...reaching western quebec by late 
saturday. a strong cold front trailing this low will cross the 
lake early saturday.

loz062-220415-
lake ontario open waters from the niagara river to hamlin beach-
356 pm est tue feb 21 2017

.tonight...southwest winds less than 10 knots. rain showers
likely through early evening...then a chance of rain showers late
this evening. patchy fog after midnight. waves 1 foot or less. 
.wednesday...light and variable winds becoming south 5 to
10 knots. patchy fog in the morning. waves 1 foot or less. 
.wednesday night...southwest winds 5 to 15 knots becoming south.
a chance of showers. waves 1 foot or less. 
.thursday...south winds 5 to 15 knots becoming southwest. a
chance of showers in the morning. waves 1 foot or less. 
.thursday night...southwest winds 5 to 10 knots becoming east. a
chance of rain showers in the evening...then rain showers likely
overnight. waves 1 foot or less. 
.friday...east winds 10 to 15 knots becoming south 15 to
20 knots. rain showers likely during the day...then rain showers
likely with a chance of thunderstorms friday night. waves 1 to
3 feet. 
.saturday...south winds 15 to 25 knots becoming west. occasional
rain showers with a chance of thunderstorms during the day...then
a chance of rain and snow showers saturday night. waves 1 to
3 feet building to 3 to 6 feet. 
.sunday...west winds 15 to 25 knots. waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kbuf 212056
glflo 

loz063>065-220415-
lake ontario open waters from hamlin beach to the saint lawrence
river-
356 pm est tue feb 21 2017

.tonight...south winds 15 to 20 knots diminishing to 5 to
15 knots. rain showers this evening...then a chance of rain
showers after midnight. patchy fog after midnight. waves 1 to
3 feet. 
.wednesday...south winds 5 to 10 knots becoming southeast. patchy
fog in the morning. waves 1 foot or less. 
.wednesday night...south winds 5 to 15 knots becoming southeast.
a chance of rain showers. waves 1 foot or less. 
.thursday...southeast winds 5 to 15 knots becoming southwest. a
chance of rain showers. waves 1 foot or less. 
.thursday night...south winds 10 knots or less becoming east. a
chance of rain showers overnight. waves 1 foot or less. 
.friday...southeast winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. rain showers likely during the
day...then a chance of rain showers and thunderstorms friday
night. waves 2 feet or less building to 2 to 4 feet. 
.saturday...south winds 20 to 25 knots becoming west. occasional
rain showers with a chance of thunderstorms during the day...then
snow showers likely with a chance of rain showers saturday night.
waves 2 to 4 feet building to 5 to 8 feet. 
.sunday...west winds to 30 knots diminishing to 15 to 20 knots.
snow showers likely during the day...then a chance of snow
showers sunday night. waves 5 to 8 feet subsiding to 3 to 6 feet.

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 212050
glfle 
591 

open lake forecast for lake erie
national weather service cleveland oh
350 pm est tue feb 21 2017

for waters beyond five nautical miles of shore on lake erie

.synopsis...a weak cold front will stall just south of lake erie
overnight. meanwhile high pressure 30.30 off the east coast will
support southerly winds over the lake through wednesday night.
another weak cold front will cross the lake on thursday, but then
move back north of the lake on friday as a warm front. a
low pressure system 29.30 will begin to organize well to the west
of the area thursday night. by friday the system will move across
the great lakes dragging a strong cold front through the region
saturday. 

lez162>165-220330-
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-
lake erie open waters from vermilion to avon point oh-
350 pm est tue feb 21 2017

.tonight...west winds less than 10 knots becoming south. a chance
of showers through early evening. a slight chance of showers from
late evening on. areas of fog after midnight. waves 1 foot or
less. 
.wednesday...south winds 10 knots or less becoming southwest.
areas of fog through mid morning...then patchy fog late in the
morning. waves 1 foot or less. 
.wednesday night...south winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.thursday...southwest winds 5 to 15 knots becoming light and
variable. waves 2 feet or less. 
.thursday night...northeast winds 10 knots or less becoming east
5 to 15 knots. a chance of showers. waves 1 to 3 feet. 
.friday...south winds 5 to 15 knots becoming southwest 15 to
20 knots. a chance of showers and thunderstorms...then
thunderstorms in the evening. showers. waves 1 to 3 feet. 
.saturday...southwest winds 15 to 25 knots becoming west 10 to
20 knots. a chance of rain showers. a chance of snow showers in
the afternoon. waves 1 to 3 feet building to 4 to 6 feet. 
.sunday...west winds 10 to 20 knots. waves 4 to 6 feet subsiding
to 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 212050
glfle 

lez061-166>169-220330-
lake erie open waters from ripley to buffalo ny-
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-
350 pm est tue feb 21 2017

.tonight...southwest winds 10 knots or less becoming south. a
chance of showers through early evening...then a slight chance of
showers from late evening on. waves 1 foot or less. 
.wednesday...southeast winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.wednesday night...southwest winds 5 to 15 knots. waves 2 feet or
less. 
.thursday...southwest winds 5 to 15 knots becoming west 10 knots
or less. a chance of rain showers in the afternoon. waves 1 to
3 feet. 
.thursday night...west winds 10 knots or less becoming east 5 to
15 knots. a chance of showers. waves 1 to 3 feet. 
.friday...southeast winds 5 to 15 knots becoming southwest 10 to
20 knots. a chance of showers and thunderstorms...then showers
with thunderstorms likely. waves 1 to 3 feet building to 2 to
4 feet. 
.saturday...southwest winds 15 to 25 knots becoming west. rain
showers likely in the morning...then a chance of rain showers in
the afternoon. a chance of snow showers. waves 2 to 4 feet
building to 5 to 8 feet. 
.sunday...west winds 10 to 20 knots. a chance of snow showers in
the morning. a chance of snow showers. waves 5 to 8 feet
subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$
fzus63 kdtx 212049
glfsc 
222 

lake st clair forecast
national weather service detroit/pontiac mi
349 pm est tue feb 21 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...low pressure...29.20 inches...tracking east over 
the hudson bay tonight will drag a weakening surface front...29.90 
inches...across lake erie. weak low pressure...29.50 inches...will 
track from northern minnesota late tonight to the northern lake 
great lakes on wednesday. deepening low pressure is then forecast to 
lift into the region from the southwest on friday.

lcz460-220915-
lake st clair-
349 pm est tue feb 21 2017

.tonight...south winds 5 to 10 knots. mostly cloudy. areas of fog in
the late evening and overnight. a chance of drizzle after midnight.
waves nearly calm. 
.wednesday...south winds 5 to 10 knots. mostly cloudy in the morning
then clearing. a chance of drizzle early in the morning. areas of
fog in the morning. waves 2 feet or less. 
.wednesday night...southwest winds 10 to 15 knots. partly cloudy
until early morning...becoming mostly cloudy. waves 2 feet or less. 
.thursday...southwest winds 5 to 10 knots until late afternoon...
becoming light and variable. partly sunny. waves 2 feet or less. 
.thursday night...east winds 5 to 10 knots. a chance of light rain
and thunderstorms in the evening, then rain and a chance of
thunderstorms after midnight. waves 2 feet or less. 
.friday...south winds 10 to 15 knots. a chance of thunderstorms in
the morning. rain. thunderstorms likely in the afternoon and
evening. waves 2 feet or less. 
.saturday...west winds 15 to 20 knots. rain, possible thunderstorms
and snow likely. waves 1 to 3 feet. 
.sunday...west winds 10 to 15 knots. partly cloudy. waves 2 feet or
less. 

$$
fzus63 kdtx 212048
glflh 

lhz462>464-220915-
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-
348 pm est tue feb 21 2017

.tonight...light and variable winds becoming south 5 to 10 knots
after midnight. areas of fog in the late evening and overnight. a
chance of drizzle after midnight. waves 2 feet or less. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. a chance of drizzle
early in the morning. areas of fog. waves 2 feet or less. 
.wednesday night...south winds 10 to 15 knots. areas of fog.
waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon, then veering to
the northwest early in the afternoon. areas of fog early in the
morning. waves 2 feet or less. 
.thursday night...northeast winds 5 to 10 knots becoming east
10 to 15 knots after midnight. a chance of rain in the evening. a
chance of thunderstorms. rain after midnight. waves 1 to 3 feet
building to 3 to 5 feet after midnight. 
.friday...southeast winds 15 to 20 knots veering to the south
late in the afternoon, then decreasing to 10 to 15 knots late in
the evening. a chance of thunderstorms in the morning. rain.
thunderstorms likely. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.saturday...south winds 10 to 15 knots becoming southwest 15 to
20 knots with gusts up to 30 knots until early evening, then
becoming west 20 to 25 knots with gusts up to 30 knots in the
late evening and early morning. rain early in the morning. a
chance of snow. a chance of rain early in the evening. waves 2 to
4 feet building to 6 to 9 feet. waves occasionally around
12 feet. 
.sunday...west winds 15 to 20 knots decreasing to 10 to 15 knots
in the late evening and early morning. waves 5 to 7 feet. waves
occasionally around 10 feet. 


$$
fzus63 kdtx 212048
glflh 
181 

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 pm est tue feb 21 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...low pressure...29.20 inches...tracking east over 
the hudson bay tonight will drag a weakening surface front...29.90 
inches...across lake erie. weak low pressure...29.50 inches...will 
track from northern minnesota late tonight to the northern lake 
great lakes on wednesday. deepening low pressure is then forecast to 
lift into the region from the southwest on friday.

lhz361-220915-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
348 pm est tue feb 21 2017

.tonight...light and variable winds becoming southeast 5 to
10 knots after midnight. areas of fog in the late evening and
overnight. a chance of drizzle after midnight. waves 2 feet or
less. 
.wednesday...south winds 5 to 10 knots in the morning becoming
light and variable. a chance of drizzle early in the morning.
areas of fog. waves 2 feet or less. 
.wednesday night...southeast winds 5 to 10 knots veering to the
southwest after midnight. areas of fog. a chance of rain. waves
2 feet or less. 
.thursday...northwest winds 5 to 10 knots. areas of fog early in
the morning. a chance of rain early in the morning. waves 2 feet
or less. 
.thursday night...north winds 5 to 10 knots veering to the
northeast in the late evening and early morning, then becoming
east 15 to 20 knots after midnight. snow and rain likely after
midnight. waves 2 feet or less building to 5 to 7 feet. waves
occasionally around 10 feet. 
.friday...east winds 15 to 20 knots with gusts up to 30 knots
becoming northeast 5 to 10 knots. rain with snow likely. waves
8 to 12 feet subsiding to 4 to 6 feet late in the afternoon.
waves occasionally around 15 feet. 
.saturday...north winds 10 to 15 knots becoming northwest 15 to
20 knots with gusts up to 30 knots. rain likely early in the
morning. snow likely early in the morning, then a chance of snow
in the afternoon. waves 3 to 5 feet subsiding to 1 to 3 feet in
the late morning and early afternoon, then building to 6 to
9 feet until early morning. waves occasionally around 12 feet. 
.sunday...northwest winds 10 to 15 knots becoming west 15 to
20 knots with gusts up to 30 knots until early evening, then
decreasing to 10 to 15 knots in the late evening and early
morning. a chance of snow. waves 3 to 5 feet. 


$$
fzus63 kdtx 212048
glflh 

lhz362-363-220915-
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-
348 pm est tue feb 21 2017

.tonight...light and variable winds becoming south 5 to 10 knots
after midnight. areas of fog in the late evening and overnight. a
chance of drizzle after midnight. waves 2 feet or less. 
.wednesday...south winds 10 to 15 knots. a chance of drizzle
early in the morning. areas of fog. waves 2 feet or less. 
.wednesday night...south winds 10 to 15 knots. areas of fog. a
chance of rain. waves 2 feet or less. 
.thursday...west winds 5 to 10 knots veering to the northwest
early in the afternoon. areas of fog early in the morning. waves
1 to 3 feet. 
.thursday night...north winds 5 to 10 knots becoming northeast
10 to 15 knots in the late evening and early morning, then
becoming east 15 to 20 knots after midnight. a chance of rain in
the evening. a chance of thunderstorms. rain with snow likely
after midnight. waves 1 to 3 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 
.friday...east winds 15 to 20 knots veering to the southeast with
gusts up to 30 knots late in the afternoon. rain with
thunderstorms likely. snow late in the afternoon. waves 6 to
9 feet. waves occasionally around 12 feet. 
.saturday...north winds 10 to 15 knots becoming southwest 15 to
20 knots with gusts up to 30 knots in the late morning and early
afternoon, then becoming west 20 to 25 knots with gusts up to
35 knots until early morning. rain and snow early in the morning,
then a chance of rain in the late morning and early afternoon. a
chance of snow until early evening. waves 3 to 5 feet building to
8 to 12 feet until early morning. waves occasionally around
15 feet. 
.sunday...west winds 15 to 20 knots with gusts up to 30 knots.
waves 5 to 7 feet. waves occasionally around 10 feet. 


$$
fzus63 klot 212120 cca
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-220930-
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-
320 pm cst tue feb 21 2017

sheboygan wi to pentwater mi south...

.tonight...southeast winds 10 to 15 kt becoming south 10 to
20 kt. areas of fog. waves 1 to 3 ft. 
.wednesday...south winds 10 to 20 kt. areas of fog in the
morning. waves 1 to 3 ft. 
.wednesday night...south winds 15 to 25 kt becoming west 10 to
20 kt. waves 1 to 2 ft. 
.thursday...northwest winds 10 to 20 kt becoming north 15 to
25 kt. chance of rain in the afternoon. waves 2 to 4 ft. 
.thursday night...northeast winds to 30 kt becoming southeast.
rain. waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.friday...south winds to 30 kt becoming southwest 15 to 25 kt.
rain with a chance of thunderstorms in the morning,... then rain
likely with a chance of thunderstorms in the afternoon. waves
4 to 6 ft occasionally to 8 ft. 
.friday night...west winds 15 to 25 kt increasing to 30 kt.
chance of rain and snow likely. waves 3 to 5 ft occasionally to
7 ft. 
.saturday...west gales to 35 kt becoming northwest. snow and rain
likely. waves 5 to 8 ft occasionally to 10 ft building to 8 to
11 ft occasionally to 14 ft. 
.sunday...west winds 15 to 25 kt diminishing to 10 to 20 kt.
chance of snow and rain. waves 5 to 8 ft occasionally to 10 ft
subsiding to 3 to 5 ft occasionally to 7 ft.  

$$
fzus63 klot 212120 cca
glflm 
846 

open lake forecast for lake michigan...corrected
national weather service chicago/romeoville il
320 pm cst tue feb 21 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...low pressure of 29.6 inches will move over the 
northern plains wednesday and deepen to around 29.5 inches as it 
passes over the western great lakes wednesday evening. strong low 
pressure around 29.3 inches will move northeast over the lower 
great lakes friday night into early saturday. ridging with a
central pressure of 30.2 inches will move across the lake late
saturday into early sunday.

lmz261-362-364-366-563-565-567-868-220930-
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-
320 pm cst tue feb 21 2017

sheboygan wi to pentwater mi north...

.tonight...south winds 10 to 15 kt increasing to 10 to 20 kt.
patchy fog this evening,...then areas of fog overnight. waves
1 to 3 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south. areas of
fog in the morning. slight chance of rain in the afternoon. waves
1 to 3 ft. 
.wednesday night...south winds 15 to 25 kt veering to northwest
10 to 20 kt. chance of rain and freezing rain overnight. waves
1 to 2 ft. 
.thursday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.thursday night...northeast winds to 30 kt. rain likely, chance
of snow and freezing rain in the evening,...then rain with
freezing rain likely overnight. waves 3 to 5 ft occasionally to
7 ft building to 5 to 8 ft occasionally to 10 ft. 
.friday...east winds to 30 kt becoming northeast. rain and
freezing rain in the morning,...then rain, freezing rain with
a chance of sleet in the afternoon. waves 8 to 11 ft occasionally
to 14 ft subsiding to 6 to 9 ft occasionally to 11 ft. 
.friday night...north winds 15 to 25 kt increasing to 30 kt. rain
and snow likely. waves 4 to 6 ft occasionally to 8 ft. 
.saturday...north gales to 35 kt becoming northwest. snow. waves
5 to 8 ft occasionally to 10 ft. 
.sunday...west winds 15 to 25 kt. chance of snow. waves 4 to 7 ft
occasionally to 9 ft.  

$$
fzus63 kmqt 212055
glfls 

lsz266-220500-
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-
355 pm est tue feb 21 2017

.late this afternoon...west winds 5 to 15 knots backing south. 
waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots veering southwest after
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots becoming southeast
10 to 20 knots in the afternoon. a chance of rain in the
afternoon. waves calm to 2 feet. 
.wednesday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a slight chance of snow and sleet in the
evening. a chance of rain. waves building to 3 to 5 feet. 
.thursday...north winds 15 to 25 knots. a slight chance of rain or
freezing rain in the morning. waves subsiding to 1 to 3 feet.
.thursday night...north winds 15 to 25 knots veering northeast
after midnight. snow likely after midnight. waves building to
4 to 7 feet. 
.friday...northeast winds 20 to 30 knots. snow. freezing rain in 
the morning. a chance of freezing rain...possibly mixed with rain 
in the afternoon. waves building to 7 to 11 feet. 
.friday night...northeast gales to 35 knots backing north after
midnight. snow. freezing spray after midnight. waves building to
7 to 11 feet. 
.saturday...north gales to 35 knots becoming northwest 20 to
30 knots. freezing spray. snow likely. waves subsiding to 5 to
8 feet. 
.sunday...northwest winds 20 to 30 knots. freezing spray. snow
likely. waves subsiding to 2 to 4 feet. 

$$
fzus63 kmqt 212055
glfls 

lsz267-220500-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
355 pm est tue feb 21 2017

.late this afternoon...west winds 5 to 15 knots backing south. 
waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a slight chance of rain after midnight.
waves calm to 2 feet. 
.wednesday...south winds 10 to 20 knots. a chance of rain in the
afternoon. waves calm to 2 feet. 
.wednesday night...north winds 10 to 20 knots. rain likely in the
evening...then a chance of rain. waves calm to 2 feet.
.thursday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a chance of rain in the morning. waves
building to 2 to 4 feet...then subsiding to 1 to 3 feet. 
.thursday night...northeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of snow after midnight.
waves subsiding to calm to 2 feet...then building to 3 to 6 feet.
.friday...east winds 20 to 30 knots. snow. a chance of freezing 
rain in the morning. rain or freezing rain likely in the 
afternoon. waves building to 5 to 9 feet. 
.friday night...northeast winds 20 to 30 knots. a chance of snow
in the evening...then snow. waves subsiding to 3 to 6 feet.
.saturday...north winds 20 to 30 knots backing northwest.
freezing spray. snow. waves building to 7 to 10 feet...then
subsiding to 5 to 8 feet. 
.sunday...west winds 20 to 30 knots becoming northwest 15 to
25 knots. freezing spray. snow likely. waves subsiding to 2 to
4 feet. 

$$
fzus63 kmqt 212055
glfls 

lsz264-220500-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
355 pm est tue feb 21 2017

.late this afternoon...southwest winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...south winds 5 to 15 knots veering west after midnight. 
waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a chance of rain. a slight chance of
snow and sleet in the afternoon. waves calm to 2 feet. 
.wednesday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a slight chance of snow and sleet in the
evening. a chance of rain. waves building to 2 to 4 feet. 
.thursday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a slight chance of snow in the
morning. waves building to 3 to 5 feet...then subsiding to calm
to 2 feet. 
.thursday night...northeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of snow after midnight.
waves building to 3 to 6 feet. 
.friday...northeast winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. freezing spray. snow. waves building
to 8 to 11 feet. 
.friday night...north gales to 35 knots. freezing spray. snow
likely. waves subsiding to 7 to 10 feet. 
.saturday...north gales to 35 knots becoming northwest 20 to
30 knots. freezing spray. a chance of snow. waves subsiding to
4 to 7 feet. 
.sunday...northwest winds 15 to 25 knots. freezing spray. a
chance of snow...then snow likely. waves subsiding to 1 to
3 feet. 

$$
fzus63 kmqt 212055
glfls 

lsz263-220500-
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-
355 pm est tue feb 21 2017

.late this afternoon...southwest winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots becoming north 10 to
20 knots in the afternoon. a chance of rain. waves calm to
2 feet. 
.wednesday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of rain...possibly mixed with 
snow. waves building to 2 to 4 feet.
.thursday...north winds 10 to 20 knots. a slight chance of rain
in the morning. waves subsiding to 1 to 3 feet. 
.thursday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. a chance of snow after midnight.
waves building to 7 to 10 feet. 
.friday...northeast winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. freezing spray. snow. waves building
to 11 to 15 feet. 
.friday night...north gales to 35 knots. snow likely. freezing
spray after midnight. waves subsiding to 7 to 10 feet. 
.saturday...north winds 20 to 30 knots becoming northwest 15 to 
35 knots. waves subsiding to 4 to 7 feet. 
.sunday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. a chance of snow. waves subsiding to 1 to 3 feet. 

$$
fzus63 kmqt 212055
glfls 
975 

open lake forecast for lake superior
national weather service marquette mi
355 pm est tue feb 21 2017

.synopsis...a 29.2 inch low pressure over far northern ontario will 
drift across southern hudson bay through tonight. low pressure of 
29.6 inches emerging over the dakotas this evening will cross the 
upper great lakes wednesday through wednesday evening...then reach 
quebec thursday. in its wake...a 30.0 inch high pressure ridge will 
build southeast to the upper great lakes thursday as low pressure of 
29.2 inches organizes over the central plains. this low will track 
northeast...reaching georgian bay saturday morning and then quebec 
saturday afternoon. in its wake...high pressure of 30.2 inches will 
build over the plains saturday and slide through the mid mississippi 
valley sunday. this will place a 30.0 inch ridge across the upper
great lakes late saturday night into sunday. 

lsz162-220500-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
355 pm est tue feb 21 2017 /255 pm cst tue feb 21 2017/

.late this afternoon...variable winds less than 10 knots. waves 
calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots. a slight chance of rain
after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots becoming northeast
10 to 20 knots in the afternoon. a slight chance of rain in the
morning...then rain likely. waves calm to 2 feet.
.wednesday night...north winds 10 to 20 knots. a slight 
chance of snow. rain likely...possibly mixed with sleet in the 
evening. a chance of rain after midnight. waves calm to 2 feet. 
.thursday...north winds 10 to 20 knots. waves building to 1 to
3 feet. 
.thursday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. a chance of snow. waves building
to 8 to 11 feet. 
.friday...northeast gales to 35 knots. freezing spray in the
morning. snow likely. waves building to 11 to 15 feet. 
.friday night...north gales to 35 knots diminishing to 20 to
30 knots after midnight. freezing spray. a chance of snow. waves
subsiding to 7 to 10 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. freezing spray. a chance of snow. waves subsiding to
3 to 6 feet. 
.sunday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. a chance of snow. waves subsiding to calm to 2 feet. 

$$
fzus63 kmqt 212055
glfls 

lsz265-220500-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
355 pm est tue feb 21 2017

.late this afternoon...northwest winds 5 to 15 knots backing
southwest. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight. waves calm to 2 feet. 
.wednesday...west winds 10 to 20 knots veering north in the
afternoon. a chance of rain in the afternoon. waves calm to
2 feet. 
.wednesday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. rain likely in the evening...then a
chance of rain...possibly mixed with snow and sleet after
midnight. waves building to 2 to 4 feet. 
.thursday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a slight chance of rain and freezing
rain in the morning. waves subsiding to 1 to 3 feet. 
.thursday night...northeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. snow likely after midnight. waves
building to 3 to 6 feet. 
.friday...northeast winds 20 to 30 knots becoming north gales to
35 knots in the afternoon. snow...possibly mixed with freezing
rain. waves building to 7 to 10 feet. 
.friday night...north winds 20 to 30 knots with gale force gusts
to 35 knots. a chance of freezing rain in the evening. snow. 
freezing spray after midnight. waves 7 to 10 feet. 
.saturday...north gales to 35 knots becoming northwest 20 to
30 knots. freezing spray. snow likely. a chance of snow. waves
subsiding to 3 to 6 feet. 
.sunday...west winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of snow. waves subsiding to 1 to 3 feet. 

$$

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