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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est tue nov 4 2025

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 30.3 inch high over the mississippi valley will 
advance eastward across the ohio valley and mid-atlantic states 
tuesday. an area of low pressure will pass to the west and north of 
the lake wednesday, deepening from 29.8 inches down to 29.4 inches 
through the day. following this low, another 30.3 inch surface high 
will reestablish over the lake for thursday. the surface high will 
then track east off the atlantic coast through friday allowing for 
another cold frontal passage. a 29.4 inch low near james bay will 
drag its cold front across the lake friday night into saturday.


loz062-042200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est tue nov 4 2025

...gale watch in effect from wednesday morning through late
wednesday night...

.this afternoon...west winds to 30 knots. waves 5 to 9 feet. waves
occasionally around 11 feet. 
.tonight...west winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots becoming west and
increasing to 35 knot gales in the afternoon. showers. waves 1 to
3 feet building to 10 to 13 feet. waves occasionally around
16 feet. 
.wednesday night...northwest gales to 40 knots diminishing to
30 knots. showers. waves 11 to 16 feet subsiding to 6 to 9 feet.
waves occasionally around 20 feet. 
.thursday...northwest winds 15 to 20 knots becoming south 5 to
15 knots. a chance of showers during the day. waves 4 to 7 feet
subsiding to 1 to 2 feet. waves occasionally around 9 feet. 
.friday...south winds 15 to 25 knots becoming west 15 to
20 knots. showers. waves 3 to 5 feet building to 4 to 7 feet,
then subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.saturday...northwest winds 15 to 20 knots becoming east 10 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
1 to 2 feet. 

$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 am est tue nov 4 2025

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...a ridge of high pressure, 30.20 inches, will build
into the region this morning, bringing a brief period of lighter
winds by the afternoon. the next low pressure system, 29.70
inches, then tracks into the central great lakes tomorrow, where
a brief period of gales will be possible.


lhz361>363-042300-
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-
1000 am est tue nov 4 2025

...gale watch in effect from wednesday afternoon through
wednesday evening...

.rest of today...west winds 15 to 20 knots decreasing to 10 to
15 knots late in the afternoon. waves 4 to 6 feet. 
.tonight...southwest winds 5 to 10 knots backing to the south
after midnight...then becoming southeast 10 to 15 knots early in
the morning. a chance of rain in the evening...then rain likely
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet in the
late evening and early morning...then building to 2 to 4 feet
early in the morning. waves occasionally around 8 feet. 
.wednesday...east winds 10 to 15 knots becoming west 15 to
20 knots with gusts to around 30 knots in the late morning and
early afternoon...then becoming northwest to 30 knots with gusts
to 35 knot gales early in the afternoon. rain in the morning...
then a chance of rain in the afternoon. waves 4 to 6 feet
building to 10 to 14 feet early in the afternoon. waves
occasionally around 18 feet. 
.wednesday night...northwest winds to 30 knots with gusts to
35 knot gales decreasing to 15 to 20 knots. a chance of rain.
waves 10 to 14 feet. waves occasionally around 18 feet. 
.thursday...northwest winds 10 to 15 knots becoming west 5 to
10 knots late in the morning...then becoming southwest 10 to
15 knots late in the afternoon becoming south 20 to 25 knots with
gusts to around 30 knots late in the evening. a chance of rain
late in the afternoon. waves 6 to 9 feet subsiding to 3 to 5 feet
late in the morning...then building to 8 to 12 feet late in the
evening. waves occasionally around 15 feet. 
.friday...south winds to 30 knots decreasing to 20 to 25 knots
with gusts to around 30 knots in the late morning and early
afternoon...then becoming southwest 15 to 20 knots early in the
evening becoming northwest 20 to 25 knots in the late evening and
early morning. rain early in the morning...then a chance of rain
until early morning. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.saturday...north winds 15 to 20 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the west early in the evening veering to the northwest in the
late evening and early morning. a chance of rain early in the
evening. rain likely and a chance of snow in the late evening and
early morning. waves 5 to 7 feet subsiding to 1 to 3 feet until
early morning. waves occasionally around 10 feet. 


$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 am est tue nov 4 2025

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...a ridge of high pressure, 30.20 inches, will build
into the region this morning, bringing a brief period of lighter
winds by the afternoon. the next low pressure system, 29.70
inches, then tracks into the central great lakes tomorrow, where
a brief period of gales will be possible.


lhz462>464-042300-
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-
1000 am est tue nov 4 2025

...gale watch in effect from wednesday afternoon through
wednesday evening...

.rest of today...west winds 15 to 20 knots decreasing to 10 to
15 knots late in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.tonight...southwest winds 5 to 10 knots becoming south 15 to
20 knots. a chance of rain after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the evening...then building to
3 to 5 feet after midnight. 
.wednesday...south winds 15 to 20 knots becoming southwest 20 to
25 knots with gusts to 35 knot gales in the late morning and
early afternoon...then becoming northwest to 30 knots with gusts
to 35 knot gales early in the afternoon. rain. waves 4 to 6 feet
building to 10 to 14 feet early in the afternoon. waves
occasionally around 18 feet. 
.wednesday night...northwest winds to 30 knots decreasing to
20 to 25 knots after midnight. gusts to 35 knot gales. rain in
the evening...then a chance of rain after midnight. waves 10 to
14 feet. waves occasionally around 18 feet. 
.thursday...northwest winds 10 to 15 knots becoming west 5 to
10 knots late in the morning...then becoming south 10 to 15 knots
late in the afternoon increasing to 20 to 25 knots with gusts to
around 30 knots late in the evening. a chance of rain late in the
evening. waves 6 to 9 feet subsiding to 3 to 5 feet late in the
morning...then subsiding to 2 to 4 feet late in the afternoon
building to 6 to 9 feet late in the evening. waves occasionally
around 12 feet. 
.friday...south winds to 30 knots decreasing to 20 to 25 knots
with gusts to around 30 knots in the late morning and early
afternoon...then becoming southwest 15 to 20 knots early in the
evening becoming northwest 20 to 25 knots in the late evening and
early morning. rain early in the morning...then rain likely until
early morning. waves 8 to 12 feet subsiding to 5 to 7 feet until
early morning. waves occasionally around 15 feet. 
.saturday...north winds 15 to 20 knots becoming northwest 10 to
15 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots early in the evening becoming
southeast 10 to 15 knots in the late evening and early morning. a
chance of rain. waves 5 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 10 feet. 


$$