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fzus63 kmqt 211346
glfls 
expires:201903212200;;700577

open lake forecast for lake superior
national weather service marquette mi
946 am edt thu mar 21 2019

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 trough averaging 29.8 inches will move across the 
upper great lakes this afternoon and evening. farther west, a 
30.3 inch ridge will build into the northern plains today, 
drifting over the upper great lakes by friday. on saturday, the 
high shifts south into the ohio valley. weak 30.0 inch troughing 
is expected briefly on sunday before giving way to a strong 30.6 
inch ridge moving into the northern plains from south-central 
canada early next week. 


lsz162-212200-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
946 am edt thu mar 21 2019 /846 am cdt thu mar 21 2019/

.rest of today...southwest winds 10 to 20 knots becoming west
15 to 25 knots in the afternoon, then becoming northwest 10 to
20 knots late. waves 1 to 3 feet building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 1 to 3 feet. 
.tonight...northwest winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then veering north late. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.friday...north winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon, then veering south late. waves subsiding to
calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...southwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet. 
.saturday night...southwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing west. waves calm
to 2 feet. 

note, wave height forecasts are for ice free areas.

$$
fzus63 kmqt 211346
glfls 
expires:201903212200;;700578

open lake forecast for lake superior
national weather service marquette mi
946 am edt thu mar 21 2019

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 trough averaging 29.8 inches will move across the 
upper great lakes this afternoon and evening. farther west, a 
30.3 inch ridge will build into the northern plains today, 
drifting over the upper great lakes by friday. on saturday, the 
high shifts south into the ohio valley. weak 30.0 inch troughing 
is expected briefly on sunday before giving way to a strong 30.6 
inch ridge moving into the northern plains from south-central 
canada early next week. 


lsz263-212200-
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-
946 am edt thu mar 21 2019

.rest of today...southwest winds 15 to 25 knots becoming west
20 to 30 knots in the afternoon, then becoming northwest 15 to
25 knots late. waves 1 to 3 feet building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.tonight...northwest winds 10 to 20 knots becoming north 20 to
30 knots after midnight, then diminishing to 15 to 25 knots late.
waves subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.friday...north winds 15 to 25 knots diminishing to 5 to 15 knots
late. waves subsiding to calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...southwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.sunday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of freezing rain. a chance of snow showers.
waves building to 2 to 4 feet, then subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing west. waves calm
to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

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