Forecast for Lake Superior

000
FZUS63 KMQT 182001
GLFLS 

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 PM EDT Wed Oct 18 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 28.7 inch low tracking from northern Manitoba 
across Hudson Bay through Thursday will push a trough of 29.7 
inches across Lake Superior this evening. A nearly stationary 30.2
inch area of high pressure across the Mid Atlantic states will 
push a 30.0 inch ridge across Lake Superior Thursday into Friday. 
A 29.1 inch low pressure over the Canadian Prairies on Friday will
track toward Hudson Bay through Sunday, passing a 29.8 inch 
trough across Lake Superior by Saturday night. Weak ridging of 
30.0 inches will track eastward across Lake Superior on Sunday 
ahead of a 29.7 inch trough approaching from the west on Monday.

LSZ162-190415-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EDT Wed Oct 18 2017 /301 PM CDT Wed Oct 18 2017/

.LATE THIS AFTERNOON...West winds 20 to 30 knots. Waves 4 to
7 feet occasionally to 9 feet. 
.TONIGHT...West winds 20 to 30 knots diminishing to 15 to
25 knots late. Waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.THURSDAY...West winds 15 to 25 knots backing southwest in the
afternoon, then diminishing to 10 to 20 knots late. Waves
subsiding to 1 to 3 feet. 
.THURSDAY NIGHT...Southwest winds 10 to 20 knots. Waves 1 to
3 feet. 
.FRIDAY...South winds 10 to 20 knots. Waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.FRIDAY NIGHT...South winds 10 to 20 knots. Waves building to
2 to 4 feet. 
.SATURDAY...South winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. A chance of showers. Waves subsiding
to 1 to 3 feet. 
.SATURDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers. Waves 1 to 3 feet. 
.SUNDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.MONDAY...West winds 15 to 25 knots veering northwest. Showers
likely, then a chance of showers. Waves building to 3 to 5 feet
occasionally to 7 feet. 

$$

LSZ263-190415-
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-
401 PM EDT Wed Oct 18 2017

.LATE THIS AFTERNOON...West winds 20 to 30 knots. Waves 4 to
8 feet occasionally to 10 feet. 
.TONIGHT...West winds 20 to 30 knots. Waves building to 6 to
9 feet occasionally to 11 feet. 
.THURSDAY...West winds 20 to 30 knots becoming southwest 15 to
25 knots late. Waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.THURSDAY NIGHT...Southwest winds 10 to 20 knots. Waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet. 
.FRIDAY...South winds 5 to 15 knots. Waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.FRIDAY NIGHT...South winds 10 to 20 knots. Waves building to
2 to 4 feet. 
.SATURDAY...South winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. A chance of showers. Waves subsiding
to 1 to 3 feet. 
.SATURDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers. Waves building to 2 to
4 feet. 
.SUNDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.MONDAY...West winds 15 to 25 knots veering northwest. Showers
likely, then a chance of showers. Waves subsiding to 1 to 3 feet,
then building to 3 to 6 feet occasionally to 8 feet. 

$$

LSZ264-190415-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 PM EDT Wed Oct 18 2017

.LATE THIS AFTERNOON...Southwest winds 20 to 30 knots. Waves 4 to
7 feet occasionally to 9 feet. 
.TONIGHT...West winds 20 to 30 knots. Waves building to 7 to
10 feet occasionally to 13 feet. 
.THURSDAY...West winds 20 to 30 knots with Gale force gusts to 35
knots...diminishing to 15 to 25 knots late. Waves subsiding to 4 
to 7 feet occasionally to 9 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet. 
.FRIDAY...South winds 5 to 15 knots. Waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.FRIDAY NIGHT...South winds 10 to 20 knots. Waves building to
3 to 5 feet occasionally to 7 feet. 
.SATURDAY...South winds 10 to 20 knots. Waves 3 to 5 feet
occasionally to 7 feet. 
.SATURDAY NIGHT...South winds 10 to 20 knots. A chance of showers
through midnight, then showers likely after midnight. Waves 3 to
5 feet occasionally to 7 feet. 
.SUNDAY...Southwest winds 10 to 20 knots increasing to 15 to
25 knots. A chance of showers. Waves subsiding to 2 to 4 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.MONDAY...Southwest winds 10 to 20 knots becoming north 15 to
25 knots. A chance of showers. Waves subsiding to 2 to 4 feet,
then building to 3 to 5 feet occasionally to 7 feet. 

$$

LSZ265-190415-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 PM EDT Wed Oct 18 2017

.LATE THIS AFTERNOON...Southwest winds 20 to 30 knots. Waves 2 to
4 feet. 
.TONIGHT...West winds 20 to 30 knots. Waves building to 3 to
6 feet occasionally to 8 feet. 
.THURSDAY...West winds 20 to 30 knots diminishing to 10 to
20 knots late. Waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 2 to 4 feet. 
.THURSDAY NIGHT...Southwest winds 10 to 20 knots. Waves subsiding
to calm to 2 feet. 
.FRIDAY...South winds 10 to 20 knots. Waves building to 2 to
4 feet. 
.FRIDAY NIGHT...South winds 15 to 25 knots. Waves 2 to 4 feet. 
.SATURDAY...South winds 15 to 25 knots. A chance of showers.
Waves 2 to 4 feet. 
.SATURDAY NIGHT...South winds 15 to 25 knots. A chance of showers
through midnight, then showers likely after midnight. Waves 2 to
4 feet. 
.SUNDAY...Southwest winds 15 to 25 knots. A chance of showers.
Waves subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.MONDAY...Southwest winds 15 to 25 knots veering northwest. A
chance of showers. Waves subsiding to 1 to 3 feet, then building
to 3 to 5 feet occasionally to 7 feet. 

$$

LSZ266-190415-
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-
401 PM EDT Wed Oct 18 2017

.LATE THIS AFTERNOON...South winds 20 to 30 knots with gale force
gusts to 35 knots. Waves 5 to 8 feet occasionally to 10 feet. 
.TONIGHT...West winds 20 to 30 knots. Waves building to 7 to
10 feet occasionally to 13 feet. 
.THURSDAY...West winds 20 to 30 knots with gale force gusts to 35
knots diminishing to 15 to 25 knots. Waves building to 8 to 11 
feet occasionally to 14 feet, then subsiding to 5 to 8 feet 
occasionally to 10 feet. 
.THURSDAY NIGHT...Southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight, then backing south late. Waves
subsiding to 1 to 3 feet. 
.FRIDAY...South winds 15 to 25 knots. Waves building to 2 to
4 feet. 
.FRIDAY NIGHT...South winds 15 to 25 knots. Waves building to
3 to 5 feet occasionally to 7 feet. 
.SATURDAY...South winds 15 to 25 knots. A chance of showers.
Waves building to 3 to 6 feet occasionally to 8 feet. 
.SATURDAY NIGHT...South winds 20 to 30 knots. A chance of showers
through midnight, then showers likely after midnight. Waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.SUNDAY...Southwest winds 15 to 25 knots backing south. Showers
likely. Waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.MONDAY...South winds 15 to 25 knots veering northwest. A chance
of showers. Waves subsiding to 2 to 4 feet, then building to 3 to
6 feet occasionally to 8 feet. 

$$

LSZ267-190415-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 PM EDT Wed Oct 18 2017

.LATE THIS AFTERNOON...South winds 20 to 30 knots with gale force
gusts to 40 knots. Waves 4 to 7 feet occasionally to 9 feet. 
.TONIGHT...Southwest winds 20 to 30 knots with gale force gusts 
to 35 knots becoming west 20 to 30 knots after midnight. Waves 
subsiding to 3 to 6 feet occasionally to 8 feet, then building to 
6 to 9 feet occasionally to 11 feet. 
.THURSDAY...West winds 20 to 30 knots with gale force gusts to 35
knots diminishing to 15 to 25 knots late. Waves building to 8 to 
11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet 
occasionally to 11 feet.
.THURSDAY NIGHT...West winds 10 to 20 knots backing southwest
after midnight. Waves subsiding to 1 to 3 feet. 
.FRIDAY...South winds 15 to 25 knots. Waves 1 to 3 feet. 
.FRIDAY NIGHT...South winds 15 to 25 knots. Waves building to
2 to 4 feet. 
.SATURDAY...South winds 15 to 25 knots. A chance of showers.
Waves 2 to 4 feet. 
.SATURDAY NIGHT...South winds 15 to 25 knots. A chance of
showers. Waves 2 to 4 feet. 
.SUNDAY...Southwest winds 15 to 25 knots. Showers likely. Waves
subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.MONDAY...South winds 15 to 25 knots veering southwest. A chance
of showers. Waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 

$$

LSZ261-190415-
MAFOR 1821/
Superior West 13640 11630 12640 11630 11530. Waves 4 to 7 feet
tonight. Waves 4 to 7 feet subsiding to 3 to 5 feet Thursday. 

Superior North Central 11540 14640 12640 19650 11640. Waves 5 to 
8 feet building to 6 to 9 feet tonight. Waves 6 to 10 feet 
Thursday.

Superior South Central 11540 12640 11630 14640. Waves 3 to 6 feet
building to 4 to 7 feet tonight. Waves 4 to 7 feet Thursday. 

Superior East 12550 14640 12640. Waves 5 to 9 feet tonight. Waves
6 to 10 feet building to 8 to 11 feet Thursday. 

$$

Petro

Experimental modernized open lake forecast is available online at
weather.gov/mqt/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes
Forecast for Lake Michigan

000
FZUS63 KLOT 181948
GLFLM 

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
248 PM CDT Wed Oct 18 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...Expansive high pressure of 30.4 inches will remain 
over the eastern Ohio Valley and mid Atlantic Coast through 
Friday. A strong low averaging 28.8 inches will take an eastward 
track across northern Manitoba to Hudson Bay by Thursday. The cold
front trailing from this low will move across the lake tonight 
into Thursday. Another strong low pressure area will move across 
the Canadian Prairies on Friday and Saturday...and to Hudson Bay 
on Sunday, with its trailing cold front crossing the lake over the
weekend.

LMZ261-362-364-366-563-565-567-669-868-870-190330-
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 Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
248 PM CDT Wed Oct 18 2017

PORT WASHINGTON WI TO WHITEHALL MI NORTH...

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.TONIGHT...Southwest gales to 45 kt becoming west to 30 kt after
midnight...then diminishing to 15 to 25 kt late. Waves 12 to
16 ft occasionally to 21 ft subsiding to 6 to 9 ft occasionally 
to 12 ft. 
.THURSDAY...West winds 15 to 25 kt becoming southwest. Waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.THURSDAY NIGHT...Southwest winds 10 to 20 kt. Waves 3 to 5 ft. 
.FRIDAY...South winds 15 to 25 kt increasing to 30 kt. Waves 3 to
5 ft building to 4 to 7 ft occasionally to 9 ft.
.FRIDAY NIGHT...South winds to 30 kt. Waves 4 to 7 ft
occasionally to 9 ft. 
.SATURDAY...South winds to 30 kt. Waves 6 to 9 ft occasionally to
12 ft. 
.SATURDAY NIGHT...South winds to 30 kt. Chance of showers. Waves
6 to 9 ft occasionally to 12 ft. 
.SUNDAY...Southwest winds to 30 kt. Showers likely. Waves 5 to
8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.MONDAY...South winds to 30 kt. Chance of showers. Waves 4 to
7 ft occasionally to 9 ft.  

$$

LMZ080-671-673-675-777-779-872-874-876-878-190330-
Lake Michigan from Michigan City IN to St. Joseph MI 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 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-
248 PM CDT Wed Oct 18 2017

PORT WASHINGTON WI TO WHITEHALL MI SOUTH...

.TONIGHT...Southwest winds to 30 kt becoming west 15 to 25 kt. 
Occasional gale force gusts to 35 kt in the evening. Waves 7 to 
10 ft occasionally to 13 ft subsiding to 5 to 8 ft occasionally to
10 ft. 
.THURSDAY...Northwest winds 10 to 20 kt becoming southwest 10 to
15 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.THURSDAY NIGHT...South winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 3 ft. 
.FRIDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 ft. 
.FRIDAY NIGHT...South winds 15 to 25 kt increasing to 30 kt.
Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.SATURDAY...South winds to 30 kt. Waves 4 to 7 ft occasionally to
9 ft. 
.SATURDAY NIGHT...South winds to 30 kt. Chance of showers. Waves
5 to 8 ft occasionally to 10 ft. 
.SUNDAY...South winds to 30 kt becoming west. Chance of showers.
Waves 5 to 8 ft occasionally to 10 ft. 
.MONDAY...South winds to 30 kt. Chance of showers. Waves 4 to
7 ft occasionally to 9 ft.  

$$

LMZ761-190330-
MAFOR 1821/
MICHIGAN NORTH...Gale Warning in effect...11460 12550 11640
14630. Waves 12 to 16 feet occasionally to 21 feet subsiding to 6
to 9 feet occasionally to 12 feet tonight. Waves 4 to 7 feet 
occasionally to 9 feet Thursday. 

MICHIGAN SOUTH 11440 12540 11530 11630 12720 11610. Waves 7 to 10
feet occasionally to 13 feet subsiding to 5 to 8 feet 
occasionally to 10 feet tonight. Waves 4 to 6 feet occasionally to
8 feet subsiding to 2 to 4 feet Thursday. 

$$


Rodriguez

Experimental modernized open lake forecast is available online at
weather.gov/lot/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes
Forecast for Lake Huron

000
FZUS63 KDTX 182017
GLFLH 

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
417 PM EDT Wed Oct 18 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...30.20 inches...will remain centered over 
the Ohio Valley as a track of low pressure systems occurs over far 
northern Ontario. Moderate southwest wind will continue over the 
Great Lakes between the high and a low pressure systems through 
mid week.

LHZ361-190815-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
417 PM EDT Wed Oct 18 2017

.TONIGHT...South winds 15 to 20 knots becoming southwest 20 to
25 knots after midnight...then decreasing to 15 to 20 knots early
in the morning. Waves 4 to 6 feet. 
.THURSDAY...West winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 30 knots in the afternoon. Waves 4 to
6 feet. 
.THURSDAY NIGHT...West winds 15 to 20 knots becoming southwest
10 to 15 knots after midnight. Waves 4 to 6 feet subsiding to
1 to 3 feet after midnight. Waves occasionally around 8 feet. 
.FRIDAY...Southwest winds 10 to 15 knots becoming south 5 to
10 knots in the late morning and afternoon. Waves 1 to 3 feet. 
.FRIDAY NIGHT...South winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and early morning...then decreasing
to 5 to 10 knots after midnight. Waves 2 to 4 feet. 
.SATURDAY...South winds 5 to 10 knots increasing to 10 to
15 knots. Waves 2 to 4 feet. 
.SUNDAY...South winds 10 to 15 knots becoming west 5 to 10 knots
in the late evening and early morning. Showers likely in the
afternoon and evening. A chance of showers in the late evening
and early morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in
the late evening and early morning. 
.MONDAY...Southwest winds 5 to 10 knots. A chance of showers in
the afternoon and evening. Rain showers likely after midnight.
Waves 1 to 3 feet. 


$$

LHZ362-363-190815-
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-
417 PM EDT Wed Oct 18 2017

.TONIGHT...South winds 20 to 25 knots becoming southwest to
30 knots after midnight...then decreasing to 20 to 25 knots early
in the morning. Waves 8 to 12 feet. Waves occasionally around
15 feet. 
.THURSDAY...West winds 15 to 20 knots. Waves 6 to 9 feet. Waves
occasionally around 12 feet. 
.THURSDAY NIGHT...West winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. Waves 4 to 6 feet. 
.FRIDAY...Southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. Waves 1 to 3 feet.
Waves occasionally around 8 feet. 
.FRIDAY NIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and early morning...then decreasing
to 10 to 15 knots after midnight. Waves 3 to 5 feet. 
.SATURDAY...South winds 10 to 15 knots increasing to 15 to
20 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet. 
.SUNDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots in the late evening and early morning. A chance of
showers in the afternoon and evening. Rain showers likely late in
the evening...then a chance of showers after midnight. Waves 4 to
6 feet. Waves occasionally around 8 feet. 
.MONDAY...Southwest winds 10 to 15 knots. A chance of showers.
Waves 2 to 4 feet. 


$$

LHZ462>464-190815-
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-
417 PM EDT Wed Oct 18 2017

.TONIGHT...South winds 15 to 20 knots becoming southwest 20 to
25 knots in the late evening and overnight. Waves 5 to 7 feet.
Waves occasionally around 10 feet. 
.THURSDAY...Southwest winds 15 to 20 knots becoming west 10 to
15 knots in the afternoon. Waves 4 to 6 feet. Waves occasionally
around 8 feet. 
.THURSDAY NIGHT...West winds 10 to 15 knots. Waves 2 to 4 feet. 
.FRIDAY...Southwest winds 5 to 10 knots becoming south 10 to
15 knots early in the afternoon. Waves 2 feet or less. 
.FRIDAY NIGHT...South winds 10 to 15 knots. Waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight. 
.SATURDAY...South winds 10 to 15 knots. Waves 3 to 5 feet. 
.SUNDAY...South winds 10 to 15 knots increasing to 15 to 20 knots
until early evening...then becoming southwest 10 to 15 knots in
the late evening and early morning. A chance of showers in the
afternoon. Rain showers likely until early morning. Waves 3 to
5 feet. 
.MONDAY...South winds 10 to 15 knots. A chance of showers. Waves
1 to 3 feet. 


$$

LHZ461-190815-
MAFOR 1821/
HURON NORTH 11430 11530 11540 11530 12620 12630. Waves 6 to
9 feet. Occasional wave height around 12 feet tonight. Waves 4 to
6 feet subsiding to 3 to 5 feet. Occasional wave height around 8
feet Thursday. 220609. 

HURON SOUTH 11420 11430 13530 13620. Waves 4 to 6 feet
tonight. Waves 4 to 6 feet subsiding to 2 to 4 feet. Occasional
wave height around 8 feet Thursday. 220406. 

$$

BT

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftable (all lower case)

Graphical marine forecasts are available online at
weather.gov/greatlakes (all lower case)
Forecast for Lake Erie

000
FZUS61 KCLE 181939
GLFLE 

Open Lake Forecast for Lake Erie
National Weather Service Cleveland OH
339 PM EDT Wed Oct 18 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 centered over the Mid
Atlantic coast will remain in control over Lake Erie through
tonight. A weakening cold front will move from central Ontario to
Lake Erie on Thursday. The high will spread back northwest into 
the lake Friday and remain in control through Sunday afternoon. A
stronger cold front will move across the lake Sunday night into
Monday.

LEZ162>166-190215-
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-
Lake Erie open waters from Avon Point to Willowick OH-
339 PM EDT Wed Oct 18 2017

.TONIGHT...South winds 15 to 20 knots becoming southwest. Waves
1 to 3 feet building to 2 to 4 feet. 
.THURSDAY...Southwest winds 15 to 20 knots becoming west. Waves
3 to 6 feet. 
.THURSDAY NIGHT...West winds 5 to 15 knots. Waves 2 to 4 feet
subsiding to 1 foot or less. 
.FRIDAY...West winds less than 10 knots becoming south. Waves
1 foot or less. 
.FRIDAY NIGHT...Southeast winds 5 to 15 knots becoming south.
Waves 2 feet or less. 
.SATURDAY...South winds 10 to 15 knots. Waves 1 to 3 feet. 
.SUNDAY...South winds 10 to 15 knots becoming southwest. Showers
likely Sunday night. Waves 1 to 3 feet. 
.MONDAY...Southwest winds 10 to 15 knots becoming west. A chance
of showers. Waves 1 to 3 feet. 

$$

LEZ061-167>169-190215-
Lake Erie open waters from Ripley to Buffalo NY-
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-
339 PM EDT Wed Oct 18 2017

.TONIGHT...South winds 15 to 20 knots becoming southwest. Waves
1 to 3 feet building to 3 to 5 feet. 
.THURSDAY...Southwest winds 15 to 25 knots becoming west. Waves
3 to 6 feet building to 4 to 7 feet. Waves occasionally around
9 feet. 
.THURSDAY NIGHT...West winds 15 to 20 knots diminishing to 5 to
15 knots. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves
occasionally around 9 feet. 
.FRIDAY...Northwest winds 10 knots or less becoming southwest.
Waves 2 feet or less. 
.FRIDAY NIGHT...South winds 10 knots or less. Waves 2 feet or
less. 
.SATURDAY...South winds 5 to 15 knots. Waves 1 to 3 feet. 
.SUNDAY...South winds 10 to 15 knots becoming southwest. A chance
of showers Sunday night. Waves 1 to 3 feet. 
.MONDAY...Southwest winds 10 to 15 knots. Showers likely during
the day, then a chance of showers Monday night. Waves 1 to
3 feet. 

$$

LEZ161-190215-
MAFOR 1821/
ERIE WEST 1/3 11410 11420 14520 11520 11620. Waves 1 to 3 feet
building to 2 to 4 feet tonight. Waves 3 to 5 feet subsiding to 2
to 4 feet Thursday. 

ERIE CENTRAL 1/3 11410 11420 14520 11520 11530. Waves 1 to 3 feet
building to 3 to 5 feet tonight. Waves 3 to 6 feet building to 4
to 7 feet...and occasionally around 9 feet Thursday. 

ERIE EAST 1/3 11510 11410 11420 13520 12530. Waves 1 to 3 feet
building to 3 to 5 feet tonight. Waves 3 to 6 feet building to 4
to 7 feet...and occasionally around 9 feet Thursday. 

$$
Forecast for Lake Ontario

000
FZUS61 KBUF 182030
GLFLO 

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
430 PM EDT Wed Oct 18 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...A weak cold front will cross the lake on Thursday.
Otherwise a 30.4 inch high over the Mid Atlantic states will
remain in place through Sunday. A cold front is then forecast to
move into the eastern Great Lakes Monday.

LOZ062-190315-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
430 PM EDT Wed Oct 18 2017

.TONIGHT...Southwest winds 5 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet. 
.THURSDAY...Southwest winds 15 to 20 knots becoming west. Waves
2 to 4 feet building to 3 to 5 feet. 
.THURSDAY NIGHT...West winds 15 to 20 knots. Waves 2 to 4 feet
building to 3 to 5 feet. 
.FRIDAY...West winds 15 to 20 knots becoming southwest 5 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. 
.FRIDAY NIGHT...Southwest winds 5 to 15 knots becoming south.
Waves 1 to 2 feet. 
.SATURDAY...South winds 5 to 10 knots. Waves 2 feet or less. 
.SUNDAY...South winds 5 to 15 knots becoming southwest. Waves
1 to 3 feet. 
.MONDAY...Southwest winds around 10 knots. A chance of showers
during the day, then showers likely Monday night. Waves 1 to
3 feet. 

$$

LOZ063>065-190315-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
430 PM EDT Wed Oct 18 2017

.TONIGHT...South winds 5 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet. 
.THURSDAY...South winds 15 to 20 knots becoming southwest. Waves
3 to 6 feet. 
.THURSDAY NIGHT...West winds 15 to 25 knots. Waves 3 to 6 feet
building to 4 to 7 feet, then subsiding to 3 to 6 feet. Waves
occasionally around 9 feet. 
.FRIDAY...West winds 15 to 20 knots diminishing to 5 to 15 knots.
Waves 3 to 6 feet subsiding to 1 to 3 feet. 
.FRIDAY NIGHT...Southwest winds 10 knots or less becoming south.
Waves 2 feet or less. 
.SATURDAY...South winds 5 to 15 knots. Waves 1 to 3 feet. 
.SUNDAY...South winds 10 to 15 knots. Waves 1 to 3 feet building
to 2 to 4 feet. 
.MONDAY...Southwest winds 10 to 15 knots becoming south. A chance
of showers during the day, then showers likely Monday night.
Waves 2 to 4 feet subsiding to 1 to 3 feet. 

$$

LOZ061-190315-
MAFOR 1821/
ONTARIO WEST 1/2 11510 12410 14520 11620. Waves 1 to 3 feet
tonight. Waves 2 to 4 feet building to 3 to 5 feet Thursday. 

ONTARIO EAST 1/2 11400 12410 13420 12520. Waves 1 to 3 feet
building to 2 to 4 feet tonight. Waves 3 to 6 feet Thursday. 

$$