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Latest Great Lakes Marine Forecast by KMQT
Issued 3/18/2024 4:16 PM America/New_York.
Valid through 3/19/2024 12:30 AM America/New_York.
fzus63 kmqt 182016
glfls
expires:202403190430;;968836
open lake forecast for lake superior
national weather service marquette mi
416 pm edt mon mar 18 2024
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...a 30.3 inch high pressure over the central plains
this afternoon continues south while extending weak 30.0 inch
ridging across lake superior this evening. ridging shifts south
ahead of a 29.6 inch low pressure currently over northern
manitoba. this low tracks southeast across eastern lake superior
and adjacent portions of ontario while deepening to 29.4 inches by
tuesday morning. by tuesday night, the low pressure shifts east
over southern quebec at 29.5 inches while a broad high pressure
ridge builds southeast toward the great lakes basin. ridging builds
to 30.2 inches over lake superior by wednesday evening then to
30.4 inches on thursday. a weak 30.2 inch inverted trough moves
across lake superior on friday before ridging of at least 30.4
inches moves back over the lake on saturday.
lsz162-190430-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
416 pm edt mon mar 18 2024 /316 pm cdt mon mar 18 2024/
.late this afternoon...southwest winds 15 to 25 knots. scattered
snow showers. waves 1 to 3 feet building to 2 to 4 feet.
.tonight...southwest winds 20 to 30 knots becoming west 15 to
25 knots late. a chance of snow showers through midnight. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 5 feet occasionally to 7 feet.
.tuesday...northwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves building to 4 to 7 feet
occasionally to 9 feet.
.tuesday night...northwest winds 20 to 30 knots with a few gale
force gusts to 35 knots possible. freezing spray after midnight.
isolated snow showers after midnight. waves building to 4 to 8
feet occasionally to 10 feet.
.wednesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. heavy freezing spray through early
afternoon. waves subsiding to 3 to 5 feet occasionally to 7 feet.
.wednesday night...northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.thursday...northwest winds 10 to 20 knots backing south by mid
afternoon. waves calm to 2 feet.
.thursday night...east winds 10 to 20 knots backing northeast
after midnight. a chance of snow showers. waves calm to 2 feet.
.friday...north winds 10 to 20 knots becoming northwest 15 to
25 knots. waves building to 1 to 3 feet.
.saturday...northwest winds 15 to 25 knots becoming northeast
10 to 20 knots. waves subsiding to calm to 2 feet.
$$
(2/2)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/18/2024 4:16 PM America/New_York.
Valid through 3/19/2024 12:30 AM America/New_York.
fzus63 kmqt 182016
glfls
expires:202403190430;;968837
open lake forecast for lake superior
national weather service marquette mi
416 pm edt mon mar 18 2024
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...a 30.3 inch high pressure over the central plains
this afternoon continues south while extending weak 30.0 inch
ridging across lake superior this evening. ridging shifts south
ahead of a 29.6 inch low pressure currently over northern
manitoba. this low tracks southeast across eastern lake superior
and adjacent portions of ontario while deepening to 29.4 inches by
tuesday morning. by tuesday night, the low pressure shifts east
over southern quebec at 29.5 inches while a broad high pressure
ridge builds southeast toward the great lakes basin. ridging builds
to 30.2 inches over lake superior by wednesday evening then to
30.4 inches on thursday. a weak 30.2 inch inverted trough moves
across lake superior on friday before ridging of at least 30.4
inches moves back over the lake on saturday.
lsz263-190430-
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-
416 pm edt mon mar 18 2024
...gale warning in effect from tuesday evening through wednesday
afternoon...
.late this afternoon...west winds 15 to 25 knots. scattered snow
showers. waves 1 to 3 feet building to 2 to 4 feet.
.tonight...southwest winds 15 to 25 knots increasing to 20 to
30 knots after midnight, then veering west late. a chance of snow
showers. waves building to 4 to 8 feet occasionally to 10 feet.
.tuesday...northwest winds 20 to 30 knots increasing to gales to
35 knots late. isolated snow showers. waves building to 5 to
8 feet occasionally to 10 feet.
.tuesday night...northwest gales to 40 knots. heavy freezing
spray. isolated snow showers. waves building to 9 to 12 feet
occasionally to 15 feet.
.wednesday...northwest gales to 40 knots. isolated snow showers
through early afternoon. heavy freezing spray. waves subsiding to
3 to 6 feet occasionally to 8 feet.
.wednesday night...northwest winds 20 to 30 knots becoming north
15 to 25 knots after midnight. waves subsiding to 1 to 3 feet.
.thursday...northwest winds 10 to 20 knots becoming southwest
5 to 15 knots by mid afternoon. waves subsiding to calm to
2 feet.
.thursday night...south winds 5 to 15 knots backing east after
midnight. a chance of snow showers. waves calm to 2 feet.
.friday...north winds 5 to 15 knots becoming northwest 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet.
.saturday...northwest winds 10 to 20 knots becoming north 5 to
15 knots. waves subsiding to calm to 2 feet.
$$
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