fzus63 kmqt 091447
glfls 
expires:202412092300;;448102

open lake forecast for lake superior
national weather service marquette mi
947 am est mon dec 9 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...low pressure of 29.6 inches will consolidate over 
western lake superior through early afternoon, then it will track 
across eastern lake superior through early this evening. the low 
will then spin to southern james bay, weakening to 29.7 inches by 
tuesday afternoon. on wednesday, a 30.5 inch high pressure ridge 
will build south into the northern plains while a 29.7 inch trough 
develops from new england westward toward lake superior. by 
thursday, lake superior will be between a low pressure of 28.6 
inches near the quebec-labrador border and a high pressure ridge of 
30.5 inches building southeast through the upper midwest. during 
thursday night and friday, the high pressure ridge will shift across 
the upper great lakes region.


lsz162-092300-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
947 am est mon dec 9 2024 /847 am cst mon dec 9 2024/

.rest of today...east winds 15 to 25 knots backing northeast by
late morning, then becoming north 20 to 30 knots by mid
afternoon. scattered rain and snow showers. waves 6 to 9 feet
occasionally to 11 feet subsiding to 5 to 8 feet occasionally to 
10 feet. 
.tonight...north winds 15 to 25 knots backing northwest by
midnight. a slight chance of rain showers in the evening. a
chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...northwest winds 15 to 25 knots. isolated snow showers.
waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. isolated snow showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.wednesday...north winds 20 to 30 knots backing northwest in the
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday night...northwest winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.thursday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. a chance of snow showers. waves subsiding to calm to
2 feet. 
.friday...south winds 10 to 20 knots. waves building to 1 to
3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 091447
glfls 
expires:202412092300;;448103

open lake forecast for lake superior
national weather service marquette mi
947 am est mon dec 9 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...low pressure of 29.6 inches will consolidate over 
western lake superior through early afternoon, then it will track 
across eastern lake superior through early this evening. the low 
will then spin to southern james bay, weakening to 29.7 inches by 
tuesday afternoon. on wednesday, a 30.5 inch high pressure ridge 
will build south into the northern plains while a 29.7 inch trough 
develops from new england westward toward lake superior. by 
thursday, lake superior will be between a low pressure of 28.6 
inches near the quebec-labrador border and a high pressure ridge of 
30.5 inches building southeast through the upper midwest. during 
thursday night and friday, the high pressure ridge will shift across 
the upper great lakes region.


lsz263-092300-
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-
947 am est mon dec 9 2024

.rest of today...east winds 20 to 30 knots veering west by late
morning, then veering north by mid afternoon. snow showers late 
in the morning. scattered rain showers. scattered snow showers in 
the afternoon. waves 10 to 14 feet occasionally to 18 feet 
subsiding to 8 to 11 feet occasionally to 14 feet. 
.tonight...north winds 20 to 30 knots becoming northwest 15 to
25 knots by midnight. rain showers likely in the evening. a
chance of snow showers. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. scattered snow showers. waves subsiding to 2 to 4 feet.
.tuesday night...northwest winds 5 to 15 knots becoming north
10 to 20 knots after midnight. scattered snow showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.wednesday...north winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. scattered snow showers. freezing spray
in the afternoon. waves building to 4 to 7 feet occasionally to
9 feet. 
.wednesday night...northwest winds 20 to 30 knots. freezing
spray. scattered snow showers. waves 4 to 7 feet occasionally to
9 feet. 
.thursday...northwest winds 20 to 30 knots becoming west 10 to
20 knots. freezing spray. scattered snow showers. waves subsiding
to 1 to 3 feet. 
.friday...south winds 10 to 20 knots. waves 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$