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fzus63 kdtx 240748
glflh 
001 

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 am edt sun sep 24 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, 30.10 inches, will continue to hold over 
the eastern great lakes region through the remainder of the weekend 
and into early next week.

lhz361-242015-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
348 am edt sun sep 24 2017

.today...light and variable winds becoming east 5 to 10 knots
late in the afternoon. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots veering to the south
after midnight. waves 2 feet or less. 
.monday...south winds 5 to 10 knots backing to the southeast
early in the afternoon. waves 2 feet or less. 
.monday night...east winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.tuesday...light and variable winds becoming south 5 to 10 knots
late in the evening. a chance of showers and thunderstorms after
midnight. waves 2 feet or less. 
.wednesday...west winds 10 to 15 knots becoming northwest 15 to
20 knots with gusts to 30 knots. a chance of showers and
thunderstorms early in the morning. waves 1 to 3 feet building to
4 to 6 feet. waves occasionally around 8 feet. 
.thursday...northwest winds 10 to 15 knots becoming west 5 to
10 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 


$$
fzus63 kdtx 240748
glflh 

lhz362-363-242015-
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 am edt sun sep 24 2017

.today...south winds 5 to 10 knots backing to the southeast late
in the afternoon. waves 2 feet or less. 
.tonight...south winds 5 to 10 knots. waves 1 to 3 feet. 
.monday...south winds 5 to 10 knots. waves 2 feet or less. 
.monday night...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.tuesday...south winds 5 to 10 knots. a chance of showers and
thunderstorms after midnight. waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots becoming northwest
10 to 15 knots with gusts to 30 knots in the late morning and
early afternoon...then increasing to 15 to 20 knots with gusts to
30 knots early in the evening increasing to 20 to 25 knots with
gusts to 30 knots in the late evening and early morning. a chance
of showers and thunderstorms early in the morning. waves 1 to
3 feet building to 5 to 7 feet. waves occasionally around
10 feet. 
.thursday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. a chance of showers after midnight. waves 5 to 7 feet
subsiding to 1 to 3 feet. waves occasionally around 10 feet. 


$$
fzus63 kdtx 240748
glflh 

lhz462>464-242015-
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 am edt sun sep 24 2017

.today...light and variable winds becoming south 5 to 10 knots in
the afternoon. waves 2 feet or less. 
.tonight...light and variable winds becoming southeast 5 to
10 knots after midnight. waves 2 feet or less. 
.monday...light and variable winds. waves 2 feet or less. 
.monday night...light and variable winds. waves 2 feet or less. 
.tuesday...light and variable winds becoming south 5 to 10 knots
late in the evening. waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and early afternoon...then veering
to the north early in the evening increasing to 15 to 20 knots in
the late evening and early morning. a chance of showers and
thunderstorms until late afternoon. waves 1 to 3 feet building to
5 to 7 feet until early morning. waves occasionally around
10 feet. 
.thursday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 4 to 6 feet subsiding to 1 to 3 feet in the late
evening and early morning. waves occasionally around 8 feet. 


$$
fzus63 klot 240746
glflm 
122 

open lake forecast for lake michigan
national weather service chicago/romeoville il
246 am cdt sun sep 24 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 of 30.2 inches centered south of lake 
erie will move little through the remainder of the weekend then 
gradually weaken early in the week. low pressure around 29.6 
inches is expected to develop across the great lakes region on 
tuesday night and move northeast and deepen through midweek, with 
an associated cold front passing across the lake early wednesday.

lmz261-362-364-366-563-565-567-868-241530-
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-
246 am cdt sun sep 24 2017

sheboygan wi to pentwater mi north...

.today...south winds 10 to 15 kt. waves 1 to 3 ft. 
.tonight...south winds 10 to 15 kt. waves 1 to 3 ft. 
.monday...south winds 10 to 20 kt becoming southwest 10 to 15 kt.
waves 1 to 3 ft. 
.monday night...south winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.tuesday...south winds 10 to 15 kt becoming southwest. waves 1 to
2 ft. 
.tuesday night...west winds 10 to 20 kt becoming northwest.
chance of showers and thunderstorms. waves 1 to 3 ft building to
2 to 4 ft. 
.wednesday...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft. 
.thursday...northwest winds 10 to 20 kt becoming west. waves 1 to
3 ft.  

$$
fzus63 klot 240746
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-241530-
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-
246 am cdt sun sep 24 2017

sheboygan wi to pentwater mi south...

.today...south winds 10 to 15 kt becoming southeast. waves 1 to
2 ft. 
.tonight...southeast winds 10 to 15 kt becoming south. waves 1 to
3 ft. 
.monday...south winds 10 to 15 kt. waves 1 to 2 ft. 
.monday night...southeast winds 5 to 10 kt becoming south. waves
1 to 2 ft. 
.tuesday...south winds 10 to 15 kt. waves 1 ft or less. 
.tuesday night...southwest winds 10 to 20 kt veering to northwest
15 to 25 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.wednesday...northwest winds 15 to 25 kt. waves 3 to 5 ft. 
.thursday...north winds 10 to 20 kt becoming northwest. waves
2 to 4 ft.  

$$
fzus63 kmqt 240742
glfls 
508 

open lake forecast for lake superior
national weather service marquette mi
342 am edt sun sep 24 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...lake superior will remain situated between a 30.1 
inch ridge over the eastern great lakes and a 29.6 inch trough 
over the upper mississippi valley through monday. the trough will 
push eastward across lake superior on tuesday. a 30.0 inch ridge 
will build into the upper great lakes on wednesday into thursday 
before another low pressure trough of 29.9 inches crosses lake 
superior thursday afternoon. 

lsz162-241545-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
342 am edt sun sep 24 2017 /242 am cdt sun sep 24 2017/

.early this morning...east winds 5 to 15 knots. patchy fog.
isolated showers and thunderstorms. waves calm to 2 feet. 
.today...east winds 5 to 15 knots. isolated showers and
thunderstorms through early afternoon. patchy fog. waves calm to
2 feet. 
.tonight...south winds 5 to 15 knots veering southwest after
midnight. patchy fog. scattered showers and thunderstorms. waves
calm to 2 feet. 
.monday...west winds 5 to 15 knots veering north late. patchy
fog. scattered showers. waves calm to 2 feet. 
.monday night...northeast winds 10 to 20 knots. showers likely.
waves building to 2 to 4 feet. 
.tuesday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. showers likely through early
afternoon, then a chance of showers by mid afternoon. waves
subsiding to 1 to 3 feet. 
.tuesday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves 1 to 3 feet. 
.wednesday...west winds 10 to 20 knots. waves subsiding to calm
to 2 feet. 
.thursday...west winds 10 to 20 knots veering north. waves calm
to 2 feet. 

$$
fzus63 kmqt 240742
glfls 

lsz267-241545-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
342 am edt sun sep 24 2017

.early this morning...southwest winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.today...south winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. patchy fog through early afternoon. waves calm
to 2 feet. 
.tonight...south winds 10 to 20 knots. waves building to 1 to
3 feet. 
.monday...south winds 10 to 20 knots veering southwest in the
afternoon, then backing northeast late. isolated showers by mid
afternoon. waves subsiding to calm to 2 feet. 
.monday night...southwest winds 5 to 15 knots veering west after
midnight. a slight chance of thunderstorms through midnight. a
chance of showers. waves calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots veering south by mid
afternoon. a chance of showers. waves calm to 2 feet. 
.tuesday night...west winds 10 to 20 knots becoming northwest
15 to 25 knots after midnight. showers likely through midnight,
then a chance of showers after midnight. waves building to 3 to
5 feet occasionally to 7 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 1 to 3 feet. 
.thursday...west winds 10 to 20 knots veering north. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 

$$
fzus63 kmqt 240742
glfls 

lsz263-241545-
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-
342 am edt sun sep 24 2017

.early this morning...east winds 5 to 15 knots. patchy fog.
isolated showers and thunderstorms. waves calm to 2 feet. 
.today...south winds 5 to 15 knots. patchy fog through early
afternoon. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots veering southwest late.
patchy fog. isolated showers and thunderstorms after midnight.
waves building to 1 to 3 feet. 
.monday...west winds 5 to 15 knots veering north in the
afternoon. patchy fog. isolated thunderstorms through early
afternoon. scattered showers. waves subsiding to calm to 2 feet. 
.monday night...northeast winds 10 to 20 knots. a chance of
showers through midnight, then showers likely after midnight.
waves building to 2 to 4 feet. 
.tuesday...northeast winds 5 to 15 knots. showers likely. waves
subsiding to 1 to 3 feet. 
.tuesday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of showers. waves building to
2 to 4 feet. 
.wednesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots. waves subsiding to calm to 2 feet. 
.thursday...west winds 5 to 15 knots veering north. waves calm to
2 feet. 

$$
fzus63 kmqt 240742
glfls 

lsz264-241545-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
342 am edt sun sep 24 2017

.early this morning...east winds less than 10 knots. areas of
fog. isolated showers and thunderstorms. waves calm to 2 feet. 
.today...south winds 5 to 15 knots. patchy fog through early
afternoon. isolated showers and thunderstorms through early
afternoon. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots veering southwest late.
patchy fog. isolated showers and thunderstorms after midnight.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.monday...southwest winds 5 to 15 knots veering northwest in the
afternoon, then veering north late. patchy fog. isolated
thunderstorms through early afternoon. scattered showers. waves
subsiding to calm to 2 feet. 
.monday night...north winds 5 to 15 knots veering northeast after
midnight. a chance of showers through midnight, then showers
likely after midnight. waves building to 2 to 4 feet. 
.tuesday...northeast winds 5 to 15 knots. showers likely. waves
subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 10 to 20 knots becoming west
15 to 25 knots after midnight. a chance of showers. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 
.wednesday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 
.thursday...west winds 5 to 15 knots veering north. waves
building to 1 to 3 feet. 

$$
fzus63 kmqt 240742
glfls 

lsz265-241545-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
342 am edt sun sep 24 2017

.early this morning...southeast winds 5 to 15 knots. patchy fog.
isolated showers and thunderstorms. waves calm to 2 feet. 
.today...south winds 5 to 15 knots. patchy fog through early
afternoon. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.monday...southwest winds 10 to 20 knots veering north in the
afternoon. patchy fog by mid afternoon. scattered showers and
isolated thunderstorms by mid afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots becoming northeast
5 to 15 knots after midnight. a chance of showers and a slight
chance of thunderstorms. waves building to 1 to 3 feet. 
.tuesday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of showers through early
afternoon. showers likely by mid afternoon. waves subsiding to
calm to 2 feet. 
.tuesday night...west winds 10 to 20 knots increasing to 20 to
30 knots after midnight. a chance of showers. waves building to
2 to 4 feet. 
.wednesday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 
.thursday...west winds 10 to 20 knots veering north. a chance of
showers. waves building to 1 to 3 feet. 

$$
fzus63 kmqt 240742
glfls 

lsz266-241545-
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-
342 am edt sun sep 24 2017

.early this morning...south winds 5 to 15 knots. patchy fog.
isolated showers and thunderstorms. waves calm to 2 feet. 
.today...south winds 10 to 20 knots. patchy fog through early
afternoon. waves building to 1 to 3 feet. 
.tonight...south winds 10 to 20 knots. waves building to 2 to
4 feet. 
.monday...south winds 10 to 20 knots veering southwest in the
afternoon, then veering north late. scattered showers and
isolated thunderstorms. patchy fog by mid afternoon. waves
subsiding to calm to 2 feet. 
.monday night...north winds 5 to 15 knots veering northeast after
midnight. a chance of showers and a slight chance of
thunderstorms. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.tuesday...east winds 5 to 15 knots backing northeast by mid
afternoon. a chance of showers through early afternoon. showers
likely by mid afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...west winds 10 to 20 knots becoming northwest
20 to 30 knots after midnight. showers likely through midnight,
then a chance of showers after midnight. waves building to 3 to
5 feet occasionally to 7 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 1 to 3 feet. 
.thursday...west winds 10 to 20 knots veering north. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 

$$

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