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fzus63 kmqt 051954
glfls 
expires:202108060400;;025043

open lake forecast for lake superior
national weather service marquette mi
354 pm edt thu aug 5 2021

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 29.8 inch low over northwestern ontario this evening  
will track over lake superior late tonight and friday. a weak 
29.9 inch high pressure ridge over northern ontario friday morning
is expected to extend towards lake superior friday night. this 
ridge will build to 30.0 inches saturday morning. an expansive 
29.6 inch trough is expected to approach the upper great lakes 
from the west saturday night and sunday. the trough will then 
track across the region at 29.8 inches monday and linger into
tuesday at 29.7 inches. 


lsz162-060400-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
354 pm edt thu aug 5 2021 /254 pm cdt thu aug 5 2021/

.late this afternoon...south winds 5 to 15 knots. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet building to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots. a chance of showers and
thunderstorms. waves subsiding to calm to 2 feet. 
.friday...northwest winds 5 to 15 knots veering east in the
afternoon. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.saturday...east winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a slight chance of showers. waves
building to 2 to 4 feet. 
.saturday night...east winds 10 to 20 knots. a chance of showers
through midnight. a chance of thunderstorms. showers likely after
midnight. waves subsiding to 1 to 3 feet. 
.sunday...southeast winds 10 to 20 knots backing east by mid
afternoon. showers likely. waves subsiding to calm to 2 feet. 
.sunday night...east winds 10 to 20 knots becoming south 5 to
15 knots after midnight. a chance of showers. waves calm to
2 feet. 
.monday...south winds 5 to 15 knots backing east. a chance of
showers. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$
fzus63 kmqt 051954
glfls 
expires:202108060400;;025044

open lake forecast for lake superior
national weather service marquette mi
354 pm edt thu aug 5 2021

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 29.8 inch low over northwestern ontario this evening  
will track over lake superior late tonight and friday. a weak 
29.9 inch high pressure ridge over northern ontario friday morning
is expected to extend towards lake superior friday night. this 
ridge will build to 30.0 inches saturday morning. an expansive 
29.6 inch trough is expected to approach the upper great lakes 
from the west saturday night and sunday. the trough will then 
track across the region at 29.8 inches monday and linger into
tuesday at 29.7 inches. 


lsz263-060400-
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-
354 pm edt thu aug 5 2021

.late this afternoon...south winds 10 to 20 knots. a slight
chance of showers. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots veering southwest after
midnight. a chance of showers and thunderstorms. waves building
to 1 to 3 feet. 
.friday...west winds 5 to 15 knots veering north in the
afternoon, then veering northeast late. a slight chance of
showers and thunderstorms through early afternoon. waves
subsiding to calm to 2 feet. 
.friday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.saturday...east winds 10 to 20 knots. a slight chance of showers
by mid afternoon. waves building to 2 to 4 feet. 
.saturday night...east winds 10 to 20 knots veering southeast
after midnight. a chance of showers. waves subsiding to 1 to
3 feet. 
.sunday...southeast winds 10 to 20 knots. showers likely. waves
1 to 3 feet. 
.sunday night...south winds 10 to 20 knots. a chance of
thunderstorms through midnight. a chance of showers. waves
subsiding to calm to 2 feet. 
.monday...southwest winds 5 to 15 knots backing south. a chance
of showers. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots becoming south 10 to
20 knots. a chance of showers. waves calm to 2 feet. 

$$

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