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fzus63 kdtx 211432
glflh 
263 

open lake forecast for lake huron
national weather service detroit/pontiac mi
932 am est wed feb 21 2018

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, 29.90 inches, will lift northeast through 
ontario into quebec this morning with a trailing cold front pushing 
south of the area. high pressure, 30.80 inches, will then build into 
the area from the west from later today into thursday.

lhz361>363-212130-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
932 am est wed feb 21 2018

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

wave heights are for ice free areas.

$$
fzus63 kdtx 211432
glflh 

lhz462>464-212130-
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-
932 am est wed feb 21 2018

.rest of today...northwest winds 15 to 20 knots decreasing to
10 to 15 knots late in the afternoon. showers likely late in the
morning. a chance of snow showers early in the afternoon. 
.tonight...north winds 5 to 10 knots increasing to 10 to 15 knots
early in the morning. 
.thursday...northeast winds 10 to 15 knots. 
.thursday night...northeast winds 10 to 15 knots becoming east
5 to 10 knots in the late evening and overnight. 
.friday...southeast winds 10 to 15 knots becoming south 5 to
10 knots late in the morning...then veering to the southwest late
in the afternoon. a chance of freezing rain in the morning. a
chance of showers early in the morning. 
.saturday...west winds 5 to 10 knots veering to the north in the
late morning and early afternoon...then veering to the northeast
early in the evening becoming east 15 to 20 knots in the late
evening and early morning. a chance of snow showers and showers
in the evening. showers and snow showers after midnight. 
.sunday...southeast winds 15 to 20 knots becoming south 20 to
25 knots with gusts to 30 knots in the late morning and early
afternoon...then veering to the west with gusts to 30 knots early
in the evening decreasing to 15 to 20 knots in the late evening
and early morning. snow showers early in the morning. showers
until afternoon. 

waves omitted due to ice coverage.

$$
fzus63 kdtx 210839
glflh 

lhz362-363-212115-
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-
339 am est wed feb 21 2018

.today...northwest winds 15 to 20 knots. gusts to 30 knots in the
late morning and early afternoon. showers and a chance of snow
showers early in the morning. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.tonight...north winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight. 
.thursday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday night...east winds 10 to 15 knots. waves 1 to 3 feet. 
.friday...southeast winds 10 to 15 knots becoming south 5 to
10 knots late in the morning...then veering to the southwest late
in the afternoon. snow showers likely and a chance of freezing
rain in the morning. showers and freezing rain likely late in the
morning...then a chance of showers early in the afternoon. waves
1 to 3 feet. 
.saturday...northwest winds 5 to 10 knots becoming east 10 to
15 knots early in the evening...then increasing to 15 to 20 knots
with gusts to 30 knots in the late evening and early morning. a
chance of showers early in the evening. a chance of snow showers
in the evening...then snow showers and showers after midnight.
waves 2 feet or less building to 2 to 4 feet in the late evening
and early morning. 
.sunday...southeast winds 20 to 25 knots veering to the south in
the late morning and early afternoon...then becoming west 15 to
20 knots until early morning. gusts to 30 knots. snow showers
early in the morning. showers likely until afternoon. waves 4 to
6 feet. waves occasionally around 8 feet. 

wave heights are for ice free areas.

$$
fzus63 kdtx 210839
glflh 
593 

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 am est wed feb 21 2018

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, 29.90 inches, will lift northeast through 
ontario into quebec this morning with a trailing cold front pushing 
south of the area. high pressure, 30.80 inches, will then build into 
the area from the west from later today into thursday.

lhz361-212115-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
339 am est wed feb 21 2018

.today...northwest winds 15 to 20 knots becoming west 10 to
15 knots late in the afternoon. a chance of snow showers early in
the morning. waves 3 to 5 feet. 
.tonight...west winds 5 to 10 knots in the evening becoming light
and variable. waves 2 feet or less. 
.thursday...light and variable winds becoming northeast 5 to
10 knots in the late morning and afternoon. waves 2 feet or less.
.thursday night...east winds 5 to 10 knots increasing to 10 to
15 knots after midnight. a chance of snow showers after midnight.
waves 2 feet or less. 
.friday...east winds 10 to 15 knots becoming southeast 5 to
10 knots late in the morning...then veering to the west late in
the afternoon. snow showers likely and a chance of freezing rain
in the morning...then freezing rain likely and a chance of snow
showers late in the morning. a chance of showers late in the
morning. waves 2 feet or less. 
.saturday...light and variable winds becoming east 10 to 15 knots
early in the evening...then increasing to 15 to 20 knots in the
late evening and early morning. a chance of snow showers in the
evening. snow showers after midnight. waves 2 feet or less. 
.sunday...southeast winds 15 to 20 knots veering to the south in
the late morning and early afternoon...then becoming west 20 to
25 knots early in the evening decreasing to 15 to 20 knots in the
late evening and early morning. gusts to 30 knots. snow showers
until afternoon. showers likely until late afternoon...then a
chance of rain and snow showers early in the evening. waves 2 to
4 feet. 

wave heights are for ice free areas.

$$
fzus63 klot 211508
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-212230-
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-
908 am cst wed feb 21 2018

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 15 to 25 kt becoming north 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft. 
.tonight...northeast winds 10 to 20 kt. waves subsiding to 3 to 5
ft.
.thursday...east winds 15 to 20 kt. waves 3 to 5 ft. 
.thursday night...east winds 15 to 25 kt becoming southeast.
chance of rain and light freezing rain overnight. waves 3 to
5 ft. 
.friday...south winds 10 to 20 kt becoming southwest 10 to 15 kt.
rain likely in the morning. waves 3 to 5 ft subsiding to 1 to
3 ft. 
.friday night...west winds 10 to 15 kt veering to north. waves
1 to 2 ft. 
.saturday...east winds 10 to 20 kt. chance of rain and light
freezing rain. waves 1 to 3 ft building to 2 to 4 ft. 
.sunday...west gales to 35 kt. chance of rain and snow. waves
6 to 9 ft occasionally to 12 ft.  

$$
fzus63 klot 211508
glflm 
274 

open lake forecast for lake michigan
national weather service chicago/romeoville il
908 am cst wed feb 21 2018

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 29.9 inches is over northern 
quebec this morning with a cold front trailing across the eastern  
great lakes to the lower mississippi valley. the low will move to
the canadian maritimes today while the cold front shifts east to 
the atlantic coast. meanwhile, high pressure of 30.7 inches 
centered over the upper missouri valley this morning will shift 
to lake superior late tonight and then move to maine late 
thursday night. a low of 30.1 inches will move from the mid 
mississippi valley early friday to the eastern great lakes late 
friday. another high of 30.3 inches will build across the dakotas 
friday and lift to quebec saturday. low pressure of 29.7 inches 
will develop over the central plains friday night and lift across 
lake superior sunday at 29.1 inches.

lmz261-362-364-366-563-565-567-868-212230-
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-
908 am cst wed feb 21 2018

sheboygan wi to pentwater mi north...

.rest of today...northwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tonight...west winds around 10 kt veering to northeast 10 to 15
kt. waves 1 to 3 ft. 
.thursday...east winds 10 to 15 kt. waves 1 to 3 ft. 
.thursday night...east winds 10 to 20 kt becoming southeast.
chance of snow, light sleet likely with a chance of light
freezing rain overnight. waves 2 to 4 ft building to 3 to 5 ft. 
.friday...south winds 10 to 20 kt becoming southwest. snow, rain,
light freezing rain and light sleet likely in the morning. waves
3 to 5 ft subsiding to 1 to 3 ft. 
.friday night...west winds 10 to 20 kt becoming northwest 10 to
15 kt. waves 1 to 3 ft. 
.saturday...east winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.sunday...west winds to 30 kt. chance of rain and snow. waves
6 to 9 ft occasionally to 12 ft.  

$$
fzus63 kmqt 211426
glfls 

lsz266-212230-
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-
926 am est wed feb 21 2018

.rest of today...west winds 15 to 25 knots. isolated snow showers
late in the morning. waves 3 to 5 feet occasionally to 7 feet
subsiding to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.thursday...west winds 5 to 15 knots backing south by late
morning, then backing southeast by mid afternoon. waves calm to
2 feet. 
.thursday night...southeast winds 10 to 20 knots. a slight chance
of snow showers in the evening, then snow showers likely after
midnight. waves building to 1 to 3 feet. 
.friday...southeast winds 10 to 20 knots veering west in the
afternoon. snow showers likely in the morning. a chance of
freezing rain. a chance of snow showers in the afternoon. waves
subsiding to calm to 2 feet. 
.friday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of freezing rain and snow
showers. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots becoming east 15 to
25 knots. snow showers likely. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...west winds 20 to 30 knots. patchy blowing snow. a
chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 4 to 7 feet occasionally
to 9 feet. 

note, wave height forecasts are for ice free areas.

$$
fzus63 kmqt 211426
glfls 

lsz267-212230-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
926 am est wed feb 21 2018

.rest of today...northwest winds 15 to 25 knots backing west by
late morning, then diminishing to 10 to 20 knots by mid
afternoon. freezing spray late in the morning. isolated snow 
showers. waves 3 to 6 feet occasionally to 8 feet subsiding to 1 
to 3 feet. 
.tonight...west winds 5 to 15 knots backing south by midnight,
then veering southwest late. waves subsiding to calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing south by late
morning, then backing southeast by mid afternoon. waves calm to
2 feet. 
.thursday night...southeast winds 10 to 20 knots. a chance of
snow showers after midnight. waves building to 1 to 3 feet. 
.friday...southeast winds 10 to 20 knots veering southwest in the
afternoon. snow showers in the morning. a chance of freezing
rain. waves subsiding to calm to 2 feet. 
.friday night...west winds 10 to 20 knots. a chance of freezing
rain, possibly mixed with snow showers. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots becoming southeast 15 to
25 knots. snow showers likely. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday...west winds 20 to 30 knots. patchy blowing snow. snow
showers. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$
fzus63 kmqt 211426
glfls 

lsz264-212230-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
926 am est wed feb 21 2018

.rest of today...west winds 10 to 20 knots increasing to 20 to
30 knots by late morning, then backing southwest by mid
afternoon. isolated snow showers late in the morning. patchy
blowing snow in the afternoon. 
.tonight...southwest winds 10 to 20 knots diminishing to 5 to
15 knots by midnight. 
.thursday...southwest winds less than 10 knots becoming south
5 to 15 knots. 
.thursday night...south winds 5 to 15 knots backing southeast
after midnight. a slight chance of snow showers in the evening,
then snow showers likely after midnight. 
.friday...south winds 5 to 15 knots veering west in the
afternoon. snow showers in the morning. a chance of snow showers
in the afternoon. 
.friday night...west winds 5 to 15 knots. 
.saturday...southeast winds 5 to 15 knots becoming east 10 to
20 knots. snow showers likely. 
.sunday...west winds 15 to 25 knots. patchy blowing snow. a
chance of snow showers. 

note, waves omitted for mostly ice covered areas.

$$
fzus63 kmqt 211426
glfls 

lsz263-212230-
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-
926 am est wed feb 21 2018

.rest of today...west winds 10 to 20 knots becoming southwest
20 to 30 knots. isolated snow showers late in the morning. patchy
blowing snow in the afternoon. 
.tonight...southwest winds 15 to 25 knots diminishing to 5 to
15 knots by midnight. 
.thursday...south winds less than 10 knots increasing to 5 to
15 knots by late morning, then backing east by mid afternoon. 
.thursday night...southeast winds 5 to 15 knots. a chance of snow
showers in the evening, then snow showers after midnight. 
.friday...south winds 5 to 15 knots veering west in the
afternoon. snow showers likely in the morning. a chance of snow
showers in the afternoon. 
.friday night...west winds 5 to 15 knots. 
.saturday...east winds 5 to 15 knots increasing to 10 to
20 knots. snow showers likely. 
.sunday...west winds 15 to 25 knots. a chance of snow showers. 

note, waves omitted for mostly ice covered areas.

$$
fzus63 kmqt 211426
glfls 
310 

open lake forecast for lake superior
national weather service marquette mi
926 am est wed feb 21 2018

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 30.7 inch high will track across the great lakes
region eventually moving into southern quebec by thursday night. 
a weak 30.1 inch trough will pass across the western great lakes 
on friday followed by weak a ridge of 30.3 inches on saturday. a
low averaging 29.0 inches will track across the great lakes 
region saturday night through sunday.

lsz162-212230-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
926 am est wed feb 21 2018 /826 am cst wed feb 21 2018/

.rest of today...west winds 10 to 20 knots becoming southwest
20 to 30 knots by late morning, then diminishing to 15 to
25 knots by mid afternoon. 
.tonight...southwest winds 15 to 25 knots diminishing to 5 to
15 knots by midnight. 
.thursday...southwest winds less than 10 knots backing south by
late morning, then backing east by mid afternoon. 
.thursday night...east winds 5 to 15 knots. a chance of snow
showers in the evening, then snow showers after midnight. 
.friday...south winds 5 to 15 knots veering west in the
afternoon. snow showers likely in the morning. 
.friday night...west winds 5 to 15 knots. 
.saturday...east winds 5 to 15 knots. a chance of snow showers,
possibly mixed with freezing rain, then snow showers likely. 
.sunday...west winds 15 to 25 knots. a chance of snow showers. 

note, waves omitted for mostly ice covered areas.

$$
fzus63 kmqt 211426
glfls 

lsz265-212230-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
926 am est wed feb 21 2018

.rest of today...west winds 15 to 25 knots diminishing to 10 to
20 knots. isolated snow showers late in the morning. 
.tonight...southwest winds 5 to 15 knots. 
.thursday...southwest winds 5 to 15 knots backing southeast by
late morning, then increasing to 10 to 20 knots by mid afternoon.
.thursday night...southeast winds 10 to 20 knots. a slight chance
of snow showers in the evening, then snow showers likely after
midnight. 
.friday...southeast winds 10 to 20 knots veering west in the
afternoon. snow showers likely in the morning. 
.friday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of snow showers. 
.saturday...east winds 5 to 15 knots increasing to 10 to
20 knots. snow showers likely. 
.sunday...west winds 15 to 25 knots. patchy blowing snow. a
chance of snow showers. 

note, waves omitted for mostly ice covered areas.

$$

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