fzus61 kbuf 181402
glflo 
expires:202605182100;;768939

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt mon may 18 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...an area of low pressure will develop over the central 
plains today. the low will weaken from 29.4 inches to 29.6 inches as 
it tracks northeast to the upper great lakes tonight into tuesday 
morning, then to central quebec wednesday while strengthening to 
29.4 inches. a cold front attendant to this low will cross the lake 
late tuesday night into wednesday morning. a large 30.4 inch high 
will then build across the entire great lakes region wednesday night 
through thursday. high pressure will move to the east and weaken to 
30.1 inches friday.


loz062-182100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt mon may 18 2026

.this afternoon...southwest winds 10 to 15 knots increasing to
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots. a chance of showers in
the morning. waves 1 to 3 feet building to 3 to 6 feet. 
.tuesday night...southwest winds 15 to 25 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 3 to 6 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.thursday...northeast winds 10 knots or less becoming east. waves
2 feet or less. 
.friday...east winds 10 to 15 knots. a chance of showers friday
night. waves 2 feet or less building to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 181357
glflh 
expires:202605182200;;768728

open lake forecast for lake huron
national weather service detroit/pontiac mi
957 am edt mon may 18 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...a warm front lifts across lake huron this morning,
with southerly flow expanding across all of the local waters.
strong to severe thunderstorms are possible this afternoon-
evening and again tuesday as a cold front sweeps across the
region. high pressure, 30.50 inches, then builds in mid-week.


lhz362-363-182200-
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-
957 am edt mon may 18 2026

.rest of today...south winds 15 to 20 knots. a chance of showers
and thunderstorms in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.tonight...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. a chance of showers
and thunderstorms in the evening...then a chance of showers after
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 
.tuesday...south winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and afternoon. a chance of showers
in the afternoon. waves 5 to 7 feet. waves occasionally around
10 feet. 
.tuesday night...southwest winds 15 to 20 knots veering to the
northwest in the late evening and overnight. a chance of showers
in the evening. waves 6 to 9 feet. waves occasionally around
12 feet. 
.wednesday...northwest winds 15 to 20 knots veering to the north
late in the afternoon...then decreasing to 10 to 15 knots late in
the evening. waves 6 to 9 feet subsiding to 4 to 6 feet late in
the evening. waves occasionally around 12 feet. 
.thursday...north winds 5 to 10 knots veering to the northeast by
midnight. waves 2 to 4 feet subsiding to 2 feet or less. 
.friday...east winds 5 to 10 knots increasing to 10 to 15 knots.
waves 1 to 3 feet building to 2 to 4 feet by midnight. 


$$

fzus63 kdtx 181357
glflh 
expires:202605182200;;768729

open lake forecast for lake huron
national weather service detroit/pontiac mi
957 am edt mon may 18 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...a warm front lifts across lake huron this morning,
with southerly flow expanding across all of the local waters.
strong to severe thunderstorms are possible this afternoon-
evening and again tuesday as a cold front sweeps across the
region. high pressure, 30.50 inches, then builds in mid-week.


lhz462>464-182200-
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-
957 am edt mon may 18 2026

.rest of today...south winds 15 to 20 knots. waves 3 to 5 feet. 
.tonight...south winds 10 to 15 knots. showers likely and a
chance of thunderstorms in the evening...then a chance of showers
after midnight. waves 3 to 5 feet. 
.tuesday...south winds 15 to 20 knots. a chance of showers and
thunderstorms in the afternoon. waves 3 to 5 feet. 
.tuesday night...southwest winds 15 to 20 knots. a chance of
showers and thunderstorms in the evening. waves 3 to 5 feet. 
.wednesday...north winds 10 to 15 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.thursday...north winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...east winds 5 to 10 knots increasing to 10 to 15 knots .
waves 1 to 3 feet building to 2 to 4 feet by midnight. 


$$