Forecast for Lake Superior

000
FZUS63 KMQT 240245
GLFLS 

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
945 PM EST Fri Feb 23 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 low pressure trough of 29.9 inches stretching 
across the eastern Great Lakes will exit that area overnight as 
high pressure of 30.3 inches builds into the Great Lakes region 
Saturday. The high will move into Quebec as low pressure of 29.5 
inches tracks northeast from the Central Plains into the Great 
Lakes Saturday evening through Sunday. A 30.0 inch ridge will then
build into the Upper Great Lakes on Monday as a 29.4 inch low 
moves across southern Manitoba. On Tuesday morning, a 29.8 inch 
low will move across northern Ontario while a 30.3 inch high 
pressure moves over the Lower Great Lakes. A 30.1 inch ridge 
will arrive over the Upper Great Lakes on Wednesday.

LSZ162-241045-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
945 PM EST Fri Feb 23 2018 /845 PM CST Fri Feb 23 2018/

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...West winds 5 to 15 knots. 
.SATURDAY...Southwest winds less than 10 knots backing south by
late morning, then becoming northeast 10 to 20 knots by mid
afternoon. 
.SATURDAY NIGHT...East winds 15 to 25 knots. Patchy blowing snow.
Snow showers. 
.SUNDAY...West gales to 35 knots. Patchy blowing snow. A chance
of snow showers. 
.SUNDAY NIGHT...West winds 20 to 30 knots becoming southwest
10 to 20 knots after midnight. Patchy blowing snow in the
evening. 
.MONDAY...Southwest winds 5 to 15 knots. 
.MONDAY NIGHT...Southwest winds 10 to 20 knots. 
.TUESDAY...Southwest winds 5 to 15 knots becoming northeast less
than 10 knots. 
.WEDNESDAY...East winds 5 to 15 knots becoming northeast 10 to
20 knots. 

Note, waves omitted for mostly ice covered areas.

$$

LSZ263-241045-
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-
945 PM EST Fri Feb 23 2018

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...West winds 5 to 15 knots. 
.SATURDAY...Southwest winds 5 to 15 knots backing south by late
morning, then backing east by mid afternoon. 
.SATURDAY NIGHT...East winds 15 to 25 knots. Patchy blowing snow.
A chance of snow showers in the evening. Snow showers after
midnight. 
.SUNDAY...West gales to 40 knots. Patchy blowing snow. A chance
of snow showers. 
.SUNDAY NIGHT...West gales to 35 knots becoming southwest 15 to
25 knots after midnight. Patchy blowing snow. 
.MONDAY...Southwest winds 5 to 15 knots. 
.MONDAY NIGHT...Southwest winds 15 to 25 knots veering west after
midnight. 
.TUESDAY...Southwest winds 5 to 15 knots becoming south less than
10 knots. 
.WEDNESDAY...East winds 5 to 15 knots increasing to 10 to
20 knots. 

Note, waves omitted for mostly ice covered areas.

$$

LSZ264-241045-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
945 PM EST Fri Feb 23 2018

...GALE WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE
SUNDAY NIGHT...

.REST OF TONIGHT...West winds 5 to 15 knots increasing to 10 to
20 knots by midnight, then diminishing to 5 to 15 knots late. 
.SATURDAY...Southwest winds 5 to 15 knots backing southeast by
mid afternoon. 
.SATURDAY NIGHT...East winds 10 to 20 knots increasing to gales
to 35 knots by midnight. Areas of blowing snow. A slight chance
of snow showers in the evening. Snow showers after midnight. 
.SUNDAY...West gales to 40 knots. Patchy blowing snow. Snow
showers likely, possibly mixed with rain showers and freezing
rain in the morning. A chance of snow showers in the afternoon. 
.SUNDAY NIGHT...West gales to 35 knots diminishing to 15 to
25 knots after midnight. Patchy blowing snow. 
.MONDAY...Southwest winds 10 to 20 knots. 
.MONDAY NIGHT...Southwest winds 15 to 25 knots veering west after
midnight. 
.TUESDAY...West winds 10 to 20 knots becoming south 5 to
15 knots. 
.WEDNESDAY...East winds 5 to 15 knots increasing to 10 to
20 knots. 

Note, waves omitted for mostly ice covered areas.

$$

LSZ265-241045-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
945 PM EST Fri Feb 23 2018

...GALE WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE
SUNDAY NIGHT...

.REST OF TONIGHT...West winds 10 to 20 knots diminishing to 5 to
15 knots late. 
.SATURDAY...West winds 5 to 15 knots backing south by late
morning, then becoming southeast 10 to 20 knots by mid afternoon.
.SATURDAY NIGHT...East winds 15 to 25 knots increasing to gales
to 35 knots by midnight, then veering southeast late. Areas of
blowing snow. A chance of snow showers in the evening. Snow
showers after midnight. 
.SUNDAY...West gales to 35 knots. Patchy blowing snow. A chance
of snow showers, possibly mixed with rain. 
.SUNDAY NIGHT...West winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. Patchy blowing snow in the evening. 
.MONDAY...Southwest winds 10 to 20 knots backing south in the
afternoon. 
.MONDAY NIGHT...Southwest winds 15 to 25 knots veering west after
midnight. 
.TUESDAY...West winds 10 to 20 knots becoming east 5 to 15 knots.
.WEDNESDAY...East winds 5 to 15 knots increasing to 10 to
20 knots. 

Note, waves omitted for mostly ice covered areas.

$$

LSZ266-241045-
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-
945 PM EST Fri Feb 23 2018

...GALE WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE
SUNDAY NIGHT...

.REST OF TONIGHT...West winds 10 to 20 knots diminishing to 5 to
15 knots late. Isolated snow showers. Waves 3 to 5 feet 
occasionally to 7 feet subsiding to calm to 2 feet. 
.SATURDAY...West winds 5 to 15 knots backing southwest by late
morning, then backing southeast by mid afternoon. Waves calm to
2 feet. 
.SATURDAY NIGHT...East winds 15 to 25 knots increasing to gales
to 40 knots by midnight, then becoming southeast gales to
45 knots late. A slight chance of snow showers in the evening,
then snow showers, possibly mixed with rain and freezing rain
after midnight. Areas of blowing snow after midnight. Waves
building to 6 to 9 feet occasionally to 11 feet. 
.SUNDAY...Southwest gales to 40 knots veering west in the
afternoon. Snow showers likely in the morning. A chance of rain
showers. A chance of snow showers in the afternoon. Patchy
blowing snow in the afternoon. Waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 7 to 10 feet
occasionally to 13 feet. 
.SUNDAY NIGHT...West gales to 40 knots diminishing to 20 to
30 knots after midnight. Patchy blowing snow in the evening. A
chance of snow showers. Waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.MONDAY...Southwest winds 10 to 20 knots backing south in the
afternoon. Waves subsiding to 1 to 3 feet. 
.MONDAY NIGHT...Southwest winds 15 to 25 knots veering west after
midnight. Waves building to 2 to 4 feet. 
.TUESDAY...West winds 10 to 20 knots becoming east 5 to 15 knots.
Waves subsiding to calm to 2 feet. 
.WEDNESDAY...East winds 5 to 15 knots increasing to 10 to
20 knots. Waves building to 1 to 3 feet. 

Note, wave height forecasts are for ice free areas.

$$

LSZ267-241045-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
945 PM EST Fri Feb 23 2018

...GALE WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE
SUNDAY NIGHT...

.REST OF TONIGHT...Northwest winds 15 to 25 knots becoming west
10 to 20 knots by midnight, then diminishing to 5 to 15 knots
late. Patchy freezing drizzle. Isolated snow showers after
midnight. Waves 3 to 5 feet occasionally to 7 feet subsiding to
calm to 2 feet. 
.SATURDAY...West winds 5 to 15 knots backing southwest by late
morning, then backing southeast by mid afternoon. Waves calm to
2 feet. 
.SATURDAY NIGHT...Southeast winds 15 to 25 knots increasing to
gales to 45 knots after midnight. Areas of blowing snow after 
midnight. Snow showers, possibly mixed with freezing rain and rain
showers after midnight. Waves building to 4 to 7 feet 
occasionally to 9 feet. 
.SUNDAY...Southwest gales to 40 knots veering west in the
afternoon. Rain and snow showers likely in the morning, then a
chance of snow showers, possibly mixed with rain in the
afternoon. Patchy blowing snow in the afternoon. Waves subsiding
to 2 to 4 feet, then building to 7 to 10 feet occasionally to
13 feet. 
.SUNDAY NIGHT...West gales to 35 knots diminishing to 20 to
30 knots after midnight. Patchy blowing snow in the evening. A
chance of snow showers. Waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.MONDAY...Southwest winds 15 to 25 knots becoming south 10 to
20 knots in the afternoon. Waves subsiding to 1 to 3 feet. 
.MONDAY NIGHT...South winds 15 to 25 knots veering southwest
after midnight. Waves building to 2 to 4 feet. 
.TUESDAY...West winds 10 to 20 knots becoming east 5 to 15 knots.
Waves subsiding to calm to 2 feet. 
.WEDNESDAY...East winds 10 to 20 knots increasing to 15 to
25 knots. Waves building to 1 to 3 feet. 

Note, wave height forecasts are for ice free areas.

$$
LSZ261-241045-
MAFOR 2404/
Superior West 12610 11600 12500 11210 11120 11230. Chance of snow
early Saturday evening. Waves omitted for mostly ice covered 
areas.

Superior North Central 12610 11600 12500 11400 11310 11230. Waves
omitted for mostly ice covered areas.

Superior South Central 12610 12600 11400 12310 11230. Chance of
snow late Saturday evening. Waves omitted for mostly ice covered 
areas.

Superior East 11720 13610 11500 11300 11320 11340. Patchy light
freezing drizzle late this evening. Waves calm to 4 feet.


$$

RJT

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 240209
GLFLM 

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
809 PM CST Fri Feb 23 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...Weak low pressure of 29.9 inches over Quebec will
dissipate as it shifts northeast. High pressure of 30.4 inches 
over the northern Plains will move across the northern lakes 
Saturday morning. Low pressure of 29.7 inches will develop over 
the Southern Plains tonight...deepen rapidly...then lift across 
Lake Superior Sunday at 29.0 inches. A 30.2 inch high will build 
over the Central Plains Monday and move to the upper Ohio Valley 
Tuesday.

LMZ261-362-364-366-563-565-567-868-241030-
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-
809 PM CST Fri Feb 23 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...Northwest winds 10 to 20 kt becoming north 5 
to 10 kt late. Waves 3 to 5 ft subsiding to 2 to 4 ft. 
.SATURDAY...Northeast winds 10 to 20 kt becoming east in the 
early afternoon...then increasing to 15 to 25 kt late in the 
afternoon. Waves 1 to 3 ft building to 3 to 5 ft late.
.SATURDAY NIGHT...East winds to 30 kt becoming southeast gales 
to 35 kt in the evening...then shifting to southwest gales to 45
kt toward morning. Rain. A chance of snow in the evening. Waves 
4 to 6 ft occasionally to 8 ft building to 7 to 10 ft 
occasionally to 13 ft.
.SUNDAY...Southwest gales to 45 kt diminishing to gales to 40 kt.
Chance of rain in the morning. Waves 10 to 14 ft occasionally to
18 ft.
.SUNDAY NIGHT...Southwest gales to 35 kt becoming west to 30 kt.
Waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.MONDAY...Southwest winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 ft. 
.MONDAY NIGHT...Southwest winds to 30 kt. Waves 4 to 7 ft
occasionally to 9 ft. 
.TUESDAY...Southwest winds 10 to 20 kt becoming south 10 to 15 
kt. Waves 3 to 5 ft subsiding to 1 to 3 ft.
.WEDNESDAY...Northeast winds 10 to 20 kt becoming east. Waves 2 
to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-241030-
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-
809 PM CST Fri Feb 23 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

.REST OF TONIGHT...Northwest winds 10 to 20 kt veering to 
northeast. Waves 3 to 5 ft subsiding to 2 to 4 ft. 
.SATURDAY...East winds 10 to 20 kt increasing to 30 kt late in 
the afternoon. Slight chance of snow. Chance of rain in the 
afternoon. Waves 2 to 4 ft building to 3 to 5 ft.
.SATURDAY NIGHT...Southeast gales to 40 kt becoming south late 
in the evening...then southwest gales to 45 kt overnight. Rain. 
Waves 6 to 9 ft occasionally to 12 ft. 
.SUNDAY...Southwest gales to 45 kt diminishing to 30 kt in the
afternoon. Waves 8 to 12 ft occasionally to 16 ft subsiding to
8 to 11 ft occasionally to 14 ft.
.SUNDAY NIGHT...Southwest winds to 30 kt becoming west. Waves
5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.MONDAY...Southwest winds 10 to 20 kt. Waves 2 to 4 ft. 
.MONDAY NIGHT...Southwest winds 15 to 25 kt. Waves 3 to 5 ft. 
.TUESDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 
kt. Waves 2 to 4 ft.
.WEDNESDAY...South winds 10 to 20 kt becoming east. Waves 1 to
3 ft.

$$
LMZ761-241030-
MAFOR 2404/
MICHIGAN NORTH 11720 11710 11800 11120 12220 11230 11240. Chance 
of rain and snow Saturday evening. Waves 3 to 5 ft subsiding to 2 
to 4 ft overnight. Waves 1 to 3 ft building to 3 to 5 ft Saturday.
Waves 4 to 6 ft occasionally to 8 ft Saturday evening. 

MICHIGAN SOUTH 11720 11820 11120 12220 11230 11240 11356. Waves 3
to 5 ft subsiding to 2 to 4 ft overnight. Waves 2 to 4 ft 
building to 3 to 5 ft Saturday. Waves 6 to 9 ft occasionally to 12
ft Saturday evening. 

$$


JEE

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 240304
GLFLH 

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
950 PM EST Fri Feb 23 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, 30.00 inches, will continue to track 
northeast across 
the northern Great Lakes through the early evening. High pressure, 
30.30 inches, then builds across the region from the west tonight 
and into Saturday. Strong low pressure, approaching 29.00 inches, 
will then track northeast across the northern Great Lakes on Sunday.

LHZ361-362-240900-
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-
950 PM EST Fri Feb 23 2018

...GALE WARNING IN EFFECT FROM SATURDAY EVENING THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...West winds 10 to 15 knots increasing to 15 to
20 knots after midnight...then becoming northwest 10 to 15 knots
early in the morning. Waves 3 to 5 feet. 
.SATURDAY...Northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming east 5 to 10 knots
late in the afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet
in the late morning and afternoon. 
.SATURDAY NIGHT...East winds 10 to 15 knots increasing to
30 knots with gusts to 35 knot gales. A chance of snow showers
late in the evening. Snow showers and a chance of freezing rain
after midnight. Showers after midnight. Waves 2 to 4 feet
building to 8 to 12 feet. Waves occasionally around 15 feet. 
.SUNDAY...Southeast winds 20 to 25 knots veering to the southwest
in the late morning and afternoon. Gusts to 35 knot gales.
Showers early in the morning...then a chance of showers in the
late morning and early afternoon. Waves 8 to 12 feet. Waves
occasionally around 15 feet. 
.SUNDAY NIGHT...Southwest winds 20 to 25 knots with gusts to
30 knots decreasing to 15 to 20 knots in the late evening and
overnight. Waves 8 to 12 feet subsiding to 4 to 6 feet after
midnight. Waves occasionally around 15 feet. 
.MONDAY...West winds 10 to 15 knots becoming southwest 5 to
10 knots late in the morning...then increasing to 10 to 15 knots
late in the evening. Waves 3 to 5 feet. 
.TUESDAY...Southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then becoming
light and variable early in the evening becoming east 5 to
10 knots in the late evening and early morning. A chance of snow
showers until early morning. Showers likely after midnight. Waves
3 to 5 feet subsiding to 2 to 4 feet until early morning. 
.WEDNESDAY...Northeast winds 5 to 10 knots increasing to 10 to
15 knots until early morning. A chance of snow showers early in
the morning. A chance of showers late in the morning. A chance of
snow showers and showers after midnight. Waves 2 to 4 feet
building to 3 to 5 feet until early morning. 

Wave heights are for ice free areas.

$$

LHZ363-462-240900-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
950 PM EST Fri Feb 23 2018

...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...West winds 10 to 15 knots decreasing to 5 to
10 knots after midnight...then becoming northwest 10 to 15 knots
early in the morning. Waves 1 to 3 feet building to 3 to 5 feet
early in the morning. 
.SATURDAY...Northeast winds 5 to 10 knots. Waves 2 to 4 feet
subsiding to 1 to 3 feet in the afternoon. 
.SATURDAY NIGHT...East winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and early morning...then becoming
southeast 20 to 25 knots with gusts to 30 knots after midnight. A
chance of snow showers in the late evening and early morning.
Showers in the late evening and overnight. Waves 2 to 4 feet
building to 6 to 9 feet. Waves occasionally around 12 feet. 
.SUNDAY...South winds to 30 knots veering to the southwest in the
late morning and afternoon. Gusts to 35 knot gales. Showers early
in the morning. Waves 8 to 12 feet. Waves occasionally around
15 feet. 
.SUNDAY NIGHT...Southwest winds 20 to 25 knots with gusts to
30 knots decreasing to 15 to 20 knots in the late evening and
overnight. Waves 6 to 9 feet subsiding to 3 to 5 feet after
midnight. Waves occasionally around 12 feet. 
.MONDAY...Southwest winds 10 to 15 knots. Waves 2 to 4 feet
subsiding to 1 to 3 feet late in the morning...then building to
2 to 4 feet late in the evening. 
.TUESDAY...Southwest winds 10 to 15 knots becoming south 5 to
10 knots until early morning. Snow showers and showers likely
after midnight. Waves 3 to 5 feet subsiding to 1 to 3 feet until
early morning. 
.WEDNESDAY...Southeast winds 5 to 10 knots backing to the
northeast in the late morning and early afternoon...then becoming
east 10 to 15 knots until early morning. Snow showers and showers
likely early in the morning...then a chance of rain and snow
showers in the late morning and early afternoon. A chance of rain
and snow showers in the late evening and early morning. Waves
1 to 3 feet building to 3 to 5 feet in the late evening and early
morning. 


$$

LHZ463-464-240900-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
950 PM EST Fri Feb 23 2018

...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...West winds 5 to 10 knots. Waves 2 feet or
less. 
.SATURDAY...Northeast winds 5 to 10 knots. Waves 2 feet or less. 
.SATURDAY NIGHT...Northeast winds 5 to 10 knots becoming east
15 to 20 knots in the late evening and early morning...then
becoming southeast 20 to 25 knots after midnight. Snow showers
likely late in the evening. Showers in the late evening and
overnight. Waves 1 to 3 feet building to 3 to 5 feet after
midnight. 
.SUNDAY...South winds 20 to 25 knots veering to the southwest in
the late morning and afternoon. Gusts to 35 knot gales. Showers
early in the morning. Waves 3 to 5 feet. 
.SUNDAY NIGHT...Southwest winds 10 to 15 knots. Waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.MONDAY...Southwest winds 5 to 10 knots increasing to 10 to
15 knots late in the evening. Waves 2 feet or less. 
.TUESDAY...Southwest winds 10 to 15 knots becoming south 5 to
10 knots. A chance of rain and snow showers after midnight. Waves
2 feet or less. 
.WEDNESDAY...South winds 5 to 10 knots backing to the east early
in the evening...then increasing to 10 to 15 knots in the late
evening and early morning. A chance of snow showers and showers
early in the morning. A chance of showers until early morning. A
chance of snow showers in the late evening and early morning.
Waves 2 feet or less. 

Wave heights are for ice free areas.

$$

LHZ461-240900-
MAFOR 2404/
HURON NORTH...Gale Warning in effect...12720 11710 11700
11800 12200 11220. A chance of snow showers Saturday evening.
Waves 2 to 4 feet overnight. Waves 1 to 3 feet Saturday and
Saturday evening. 220204. 

Wave heights are for ice free areas.

HURON SOUTH 11610 11710 11810 11800 12100 11110 11210. A
chance of snow showers Saturday evening. Waves 1 to 3 feet
overnight. Waves 2 to 4 feet subsiding to 2 feet or less
Saturday. Waves 1 to 3 feet Saturday evening. 220103. 

$$

CB

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 240212
GLFLE 

Open Lake Forecast for Lake Erie
National Weather Service Cleveland OH
912 PM EST Fri Feb 23 2018

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 of 30.30 inches will build east across the lakes on
Saturday. Low pressure of 29.00 inches will track across the 
western lakes Saturday night into Sunday, forcing a cold front 
across Lake Erie early Sunday. high pressure 30.30 will move across
the lower Ohio Valley Monday into Tuesday.

LEZ061-162>169-240915-
Lake Erie open waters from Ripley to Buffalo NY-
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-
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-
912 PM EST Fri Feb 23 2018

.OVERNIGHT...West winds 5 to 15 knots becoming northwest.
The lake is mostly ice covered.
.SATURDAY...North winds 10 knots or less becoming northeast 10 to
15 knots. A chance of rain showers late in the morning. A chance
of rain showers late. 
.SATURDAY NIGHT...East winds 15 to 20 knots becoming southeast.
Rain showers. 
.SUNDAY...Southwest winds 15 to 25 knots. A chance of rain
showers in the morning. 
.SUNDAY NIGHT...Southwest winds 15 to 20 knots diminishing to
10 to 15 knots. 
.MONDAY...Southwest winds 5 to 15 knots. 
.TUESDAY...Southwest winds 5 to 15 knots becoming south. 
.WEDNESDAY...South winds 5 to 15 knots becoming east. A chance of
rain Wednesday night. 

Waves omitted due to the lake being mostly ice covered.

$$

LEZ161-240915-
MAFOR 2404/
ERIE WEST 1/3 11600 11700 11800 12100 11210 12227.  Waves omitted
due to the lake being mostly ice covered. 

ERIE CENTRAL 1/3 12600 11800 12100 11110 11226 11227.  Waves 
omitted due to the lake being mostly ice covered. 

ERIE EAST 1/3 12600 11700 11800 11100 12110 11127. Waves omitted 
due to the lake being mostly ice covered. 

$$
Forecast for Lake Ontario

000
FZUS61 KBUF 240246
GLFLO 

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
946 PM EST Fri Feb 23 2018

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 30.0 inch low over the Upper Lakes will move into Quebec tonight 
and into the Canadian Maritimes by Saturday. A 30.5 inch high 
pressure over the Northern Plains will briefly build across the 
lake late tonight and Saturday, before a deep storm system tracks 
from the Central Plains to the Upper Great Lakes Saturday night 
and Sunday. 30.3 inch high pressure will build into the lower 
Great Lakes Monday and Tuesday.

LOZ062-241015-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
946 PM EST Fri Feb 23 2018

.REST OF TONIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 1 to 3 feet. 
.SATURDAY...West winds 5 to 15 knots becoming northeast. Waves
1 to 3 feet subsiding to 1 foot or less. 
.SATURDAY NIGHT...East winds 15 to 25 knots increasing to
30 knots. Rain overnight. Waves 1 to 3 feet building to 3 to
6 feet. 
.SUNDAY...Southeast winds 15 to 25 knots becoming southwest to
30 knots. Rain in the morning. Waves 3 to 6 feet. 
.SUNDAY NIGHT...Southwest winds 15 to 25 knots. Waves 3 to
6 feet. 
.MONDAY...Southwest winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 2 feet. 
.TUESDAY...Southwest winds 15 to 20 knots diminishing to 5 to
15 knots. Waves 1 to 3 feet. 
.WEDNESDAY...Southeast winds 10 knots or less becoming east 10 to
15 knots. A chance of rain showers Wednesday night. Waves 1 to
3 feet. 

$$

LOZ063>065-241015-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
946 PM EST Fri Feb 23 2018

.REST OF TONIGHT...Southwest winds 15 to 20 knots becoming west.
Areas of fog late this evening. A chance of rain late this
evening. Waves 1 to 3 feet. 
.SATURDAY...West winds 15 to 20 knots becoming north and
diminishing to less than 10 knots in the afternoon. Waves 2 to
4 feet subsiding to 1 to 3 feet. 
.SATURDAY NIGHT...East winds 10 to 15 knots becoming southeast
and increasing to 15 to 25 knots. Rain overnight. Waves 1 to
3 feet building to 3 to 5 feet. 
.SUNDAY...Southeast winds to 30 knots becoming southwest. Rain.
Waves 3 to 6 feet. 
.SUNDAY NIGHT...Southwest winds 15 to 25 knots. Waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.MONDAY...West winds 15 to 20 knots becoming southwest 10 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. 
.TUESDAY...Southwest winds 15 to 20 knots diminishing to 5 to
15 knots. Waves 1 to 3 feet. 
.WEDNESDAY...Southeast winds 10 knots or less becoming east 10 to
15 knots. A chance of rain showers Wednesday night. Waves 1 foot
or less building to 1 to 3 feet. 

$$

LOZ061-241015-
MAFOR 2404/
ONTARIO WEST 1/2 11620 12610 11710 11700 11100 12220. Waves 1 to
3 feet subsiding to 1 foot or less overnight and Saturday. Waves
1 to 3 feet building to 2 to 4 feet Saturday evening. 

ONTARIO EAST 1/2 14610 11700 11800 11110 11210. Waves 1 to 3 feet
overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet Saturday.
Waves 2 feet or less Saturday evening. 

$$