fzus63 kmqt 232009
glfls 
expires:202405240415;;737619

open lake forecast for lake superior
national weather service marquette mi
409 pm edt thu may 23 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 29.4 inch low pressure currently over james bay 
will continue to weaken and slowly drift northeast into quebec 
tonight. in its wake, 29.9 inch ridging will build across lake 
superior. this ridging shifts east late friday night as a 29.4 
inch low lifts northeast through the northern plains. troughing of
29.6 inches moves over lake superior by saturday morning, but is 
short lived as 29.9 inch high pressure builds over the great lakes
saturday afternoon through sunday morning. meanwhile, another low
pressure begins to develop in the lee of the rockies, pushing 
northeast and reaching lake michigan at 29.4 inches by early 
monday morning. this low continues into quebec tuesday and 29.8 
inch high pressure nudges in from the northern plains.


lsz162-240415-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
409 pm edt thu may 23 2024 /309 pm cdt thu may 23 2024/

...gale warning in effect from friday morning through friday
evening...

.late this afternoon...south winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots increasing to 15 to 25 knots.
waves building to 3 to 6 feet occasionally to 8 feet. 
.friday...east winds 20 to 30 knots increasing to gales to 35 
knots in the afternoon. a chance of rain showers through early 
afternoon, then rain showers and a slight chance of thunderstorms 
by mid afternoon. waves building to 7 to 11 feet occasionally to 
14 feet.
.friday night...east winds 20 to 30 knots veering south after
midnight, then becoming west 15 to 25 knots late. a chance of
rain showers and a slight chance of thunderstorms. waves
subsiding to 2 to 4 feet. 
.saturday...southwest winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.saturday night...southwest winds 10 to 20 knots becoming east
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...east winds 10 to 20 knots backing northeast by mid
afternoon. a chance of showers. waves calm to 2 feet. 
.sunday night...northeast winds 10 to 20 knots. a chance of
showers. waves calm to 2 feet. 
.monday...north winds 10 to 20 knots backing northwest. a chance
of showers. waves calm to 2 feet. 
.tuesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet,
then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 232009
glfls 
expires:202405240415;;737620

open lake forecast for lake superior
national weather service marquette mi
409 pm edt thu may 23 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 29.4 inch low pressure currently over james bay 
will continue to weaken and slowly drift northeast into quebec 
tonight. in its wake, 29.9 inch ridging will build across lake 
superior. this ridging shifts east late friday night as a 29.4 
inch low lifts northeast through the northern plains. troughing of
29.6 inches moves over lake superior by saturday morning, but is 
short lived as 29.9 inch high pressure builds over the great lakes
saturday afternoon through sunday morning. meanwhile, another low
pressure begins to develop in the lee of the rockies, pushing 
northeast and reaching lake michigan at 29.4 inches by early 
monday morning. this low continues into quebec tuesday and 29.8 
inch high pressure nudges in from the northern plains.


lsz263-240415-
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-
409 pm edt thu may 23 2024

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight, then becoming east 15 to 25 knots late. waves building
to 3 to 5 feet occasionally to 7 feet. 
.friday...east winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. a chance of rain showers and a slight chance of
thunderstorms by mid afternoon. waves building to 4 to 7 feet
occasionally to 9 feet. 
.friday night...east winds 15 to 25 knots veering south after
midnight, then veering southwest late. rain showers through
midnight. a chance of thunderstorms. a slight chance of rain
showers after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday...southwest winds 15 to 25 knots. waves building to
3 to 6 feet occasionally to 8 feet. 
.saturday night...south winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.sunday...east winds 5 to 15 knots. a chance of showers by mid
afternoon. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.monday...north winds 10 to 20 knots backing northwest. a chance
of showers. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.tuesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers. waves subsiding to calm to 2 feet.

$$