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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat oct 31 2026

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 30.5 inch high will settle over the northern mid 
atlantic states sunday through monday before drifting off the 
eastern seaboard tuesday. a 29.5 inch low is then forecast to move 
very slowly from the upper mississippi valley tuesday to the upper 
great lakes by wednesday, and then into western quebec by thursday 
and friday.


loz062-010900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sat oct 31 2026

.overnight...southwest winds 5 to 10 knots. waves 1 foot or
less. 
.sunday...south winds less than 10 knots becoming southeast.
waves 1 foot or less. 
.sunday night...southeast winds 10 knots or less becoming
southwest. waves 1 foot or less. 
.monday...southwest winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.monday night...south winds less than 10 knots. waves 1 foot or
less. 
.tuesday...south winds 5 to 15 knots. a chance of showers during
the day. waves 2 feet or less. 
.wednesday...south winds 10 to 15 knots. a chance of showers.
waves 1 to 2 feet. 
.thursday...south winds 5 to 15 knots becoming east. a chance of
showers. waves 1 to 2 feet. 

$$

fzus61 kbuf 010202
glflo 
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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat oct 31 2026

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 30.5 inch high will settle over the northern mid 
atlantic states sunday through monday before drifting off the 
eastern seaboard tuesday. a 29.5 inch low is then forecast to move 
very slowly from the upper mississippi valley tuesday to the upper 
great lakes by wednesday, and then into western quebec by thursday 
and friday.


loz063>065-010900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sat oct 31 2026

.overnight...northwest winds 5 to 10 knots becoming
southwest. waves 2 feet or less. 
.sunday...southwest winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.sunday night...southeast winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots becoming south. waves
2 feet or less. 
.monday night...southeast winds 10 knots or less becoming south.
waves 1 foot or less. 
.tuesday...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day. waves 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots. a chance of showers.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...south winds 10 to 15 knots becoming southeast. a
chance of showers. waves 1 to 3 feet. 

$$

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lake st clair forecast
national weather service detroit/pontiac mi
945 pm edt sat oct 31 2026

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, 30.50 inches, centered over the eastern
great lakes today, will expand into the mid atlantic on sunday
while increasing to 30.60 inches. this high will influence the
region through the weekend, sustaining relatively light winds. a
slow moving deepening low pressure system will move from the
central plains monday to northern minnesota tuesday. this system
will drag a slow moving cold front into the great lakes region
tuesday night into wednesday as the low lifts into northern
ontario.


lcz460-010945-
lake st clair-
945 pm edt sat oct 31 2026

.rest of tonight...southeast winds 5 to 10 knots. mostly cloudy. a
chance of sprinkles this evening. waves 2 feet or less.
.sunday...south winds 5 to 10 knots until late afternoon becoming
light and variable. mostly cloudy. waves 2 feet or less.
.sunday night...light and variable winds. partly cloudy becoming
mostly cloudy by midnight becoming partly cloudy. waves 2 feet or
less.
.monday...south winds 5 to 10 knots. partly sunny. waves 2 feet or
less.
.monday night...south winds 10 to 15 knots. mostly cloudy. a chance
of light rain after midnight. waves 2 feet or less.
.tuesday...south winds 10 to 15 knots increasing to 20 to 25 knots.
mostly cloudy becoming partly sunny in the afternoon becoming mostly
cloudy. waves 1 to 3 feet.
.wednesday...south winds 20 to 25 knots. mostly cloudy. light rain
likely. waves 2 to 4 feet.
.thursday...north winds 10 to 15 knots. partly cloudy. a chance of
light rain. waves 2 feet or less.

$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
945 pm edt sat oct 31 2026

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, 30.50 inches, centered over the eastern
great lakes today, will expand into the mid atlantic on sunday
while increasing to 30.60 inches. this high will influence the
region through the weekend, sustaining relatively light winds. a
slow moving deepening low pressure system will move from the
central plains monday to northern minnesota tuesday. this system
will drag a slow moving cold front into the great lakes region
tuesday night into wednesday as the low lifts into northern
ontario.


lhz361>363-010945-
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-
945 pm edt sat oct 31 2026

.rest of tonight...south winds 10 to 15 knots. sprinkles. waves
1 to 3 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the afternoon. a chance of rain in the morning. waves 1 to
3 feet. 
.sunday night...south winds 5 to 10 knots  becoming light and
variable. waves 2 feet or less. 
.monday...light and variable winds becoming south 5 to 10 knots
in the late morning and afternoon. waves 2 feet or less. 
.monday night...southeast winds 10 to 15 knots veering to the
south in the late evening and overnight. a chance of rain. waves
1 to 3 feet building to 2 to 4 feet in the late evening and
overnight. 
.tuesday...south winds 15 to 20 knots. gusts to 30 knots late in
the morning. rain likely in the morning...then a chance of rain.
waves 4 to 6 feet. 
.wednesday...south winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. a chance of rain. waves 4 to 6 feet. 
.thursday...south winds 10 to 15 knots backing to the north. a
chance of rain. waves 2 to 4 feet. waves occasionally around
8 feet. 


$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
945 pm edt sat oct 31 2026

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, 30.50 inches, centered over the eastern
great lakes today, will expand into the mid atlantic on sunday
while increasing to 30.60 inches. this high will influence the
region through the weekend, sustaining relatively light winds. a
slow moving deepening low pressure system will move from the
central plains monday to northern minnesota tuesday. this system
will drag a slow moving cold front into the great lakes region
tuesday night into wednesday as the low lifts into northern
ontario.


lhz462>464-010945-
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-
945 pm edt sat oct 31 2026

.rest of tonight...south winds 10 to 15 knots. sprinkles this
evening. waves 1 to 3 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the afternoon. waves 1 to 3 feet. 
.sunday night...south winds 5 to 10 knots. waves 2 feet or less. 
.monday...south winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. waves 2 feet or less. 
.monday night...south winds 10 to 15 knots increasing to 15 to
20 knots after midnight. a chance of rain after midnight. waves
1 to 3 feet building to 2 to 4 feet after midnight. 
.tuesday...south winds 15 to 20 knots. a chance of rain. a chance
of rain late in the evening. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday...south winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. a chance of rain early in the morning...
then rain likely in the late morning and early afternoon. a
chance of rain . waves 3 to 5 feet. 
.thursday...south winds 10 to 15 knots backing to the north . a
chance of rain. waves 2 to 4 feet subsiding to 1 to 3 feet until
early evening...then building to 2 to 4 feet by midnight. 


$$