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(1/2)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/15/2026 6:52 AM America/New_York.
Valid through 7/15/2026 3:00 PM America/New_York.
fzus63 kmqt 151052
glfls
expires:202607151900;;004121
open lake forecast for lake superior
national weather service marquette mi
652 am edt wed jul 15 2026
for waters beyond 5 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...
30.1 inch ridging by wednesday morning persists until friday while
retreating east towards the st. lawrence seaway. a low pressure of
at least 29.8 inches passing through the northern plains could
impact the upper great lakes this weekend, although uncertainty
remains high on the track and strength of it. nevertheless, weak
29.9 inch ridging does look to return to lake superior on sunday.
lsz162-151900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
652 am edt wed jul 15 2026 /552 am cdt wed jul 15 2026/
...dense smoke advisory in effect until 8 am edt /7 am cdt/
thursday...
.early this morning...northwest winds 5 to 15 knots. smoke. waves
calm to 2 feet.
.today...northwest winds 5 to 15 knots veering north in the
afternoon. smoke. waves calm to 2 feet.
.tonight...west winds 5 to 15 knots veering northwest late.
smoke. waves calm to 2 feet.
.thursday...north winds 5 to 15 knots becoming northeast 10 to
20 knots in the afternoon. smoke. a slight chance of showers.
waves calm to 2 feet.
.thursday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a chance of showers and a slight
chance of thunderstorms after midnight. waves calm to 2 feet.
.friday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. showers likely through early
afternoon, then a chance of showers by mid afternoon. waves calm
to 2 feet.
.friday night...northeast winds 5 to 15 knots. showers likely
through midnight. a chance of thunderstorms. waves calm to
2 feet.
.saturday...north winds 5 to 15 knots backing west. waves calm to
2 feet.
.sunday...south winds 5 to 15 knots becoming west 10 to 20 knots.
a chance of showers and thunderstorms. waves calm to 2 feet.
$$
(2/2)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/15/2026 6:52 AM America/New_York.
Valid through 7/15/2026 3:00 PM America/New_York.
fzus63 kmqt 151052
glfls
expires:202607151900;;004122
open lake forecast for lake superior
national weather service marquette mi
652 am edt wed jul 15 2026
for waters beyond 5 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...
30.1 inch ridging by wednesday morning persists until friday while
retreating east towards the st. lawrence seaway. a low pressure of
at least 29.8 inches passing through the northern plains could
impact the upper great lakes this weekend, although uncertainty
remains high on the track and strength of it. nevertheless, weak
29.9 inch ridging does look to return to lake superior on sunday.
lsz263-151900-
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-
652 am edt wed jul 15 2026
...dense smoke advisory in effect until 8 am edt thursday...
.early this morning...northwest winds 5 to 15 knots. smoke. waves
calm to 2 feet.
.today...northwest winds 5 to 15 knots backing west in the
afternoon. smoke. waves calm to 2 feet.
.tonight...west winds 5 to 15 knots. smoke. waves calm to 2 feet.
.thursday...northwest winds less than 10 knots becoming northeast
5 to 15 knots in the afternoon. smoke. a slight chance of showers
by mid afternoon. waves calm to 2 feet.
.thursday night...east winds 5 to 15 knots. a chance of showers
and a slight chance of thunderstorms after midnight. waves calm
to 2 feet.
.friday...east winds 5 to 15 knots. showers likely. waves calm to
2 feet.
.friday night...northeast winds 5 to 15 knots. showers likely
through midnight. a chance of thunderstorms. a chance of showers
after midnight. waves calm to 2 feet.
.saturday...north winds 5 to 15 knots backing west. waves calm to
2 feet.
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet.
$$
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