Expires:202001181045;;114082
FZUS63 KMQT 180235
GLFLS 

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
935 PM EST Fri Jan 17 2020

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...High pressure of 30.8 inches exiting east into Quebec
this evening will give way to a 29.8 inch low pressure 
approaching the Upper Great Lakes from the Central Plains. The low
will deepen to 29.5 inches as it transits Lake Michigan during 
the day Saturday. The low will continue its northeastward track 
and exit the region overnight Saturday. High pressure of 30.8 
inches will then build into the northern Dakotas Sunday morning, 
then slowly migrate southeast into South Dakota by Monday. Tuesday
this high will continue drifting southeast into the Ohio Valley 
as it weakens to 30.5 inches. 


LSZ265-181045-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
935 PM EST Fri Jan 17 2020

...GALE WARNING IN EFFECT FROM 1 AM TO 7 AM EST SATURDAY...

.REST OF TONIGHT...Southeast winds 20 to 30 knots increasing to
gales to 35 knots by midnight. A chance of snow late in the
evening, then snow after midnight. Waves 3 to 5 feet occasionally
to 7 feet building to 6 to 9 feet occasionally to 11 feet. 
.SATURDAY...Southeast winds 20 to 30 knots diminishing to 10 to
20 knots by late morning, then backing east by mid afternoon.
Snow. Waves subsiding to 3 to 6 feet occasionally to 8 feet, then
building to 4 to 7 feet occasionally to 9 feet. 
.SATURDAY NIGHT...North winds 15 to 25 knots increasing to 20 to
30 knots by midnight. Periods of snow showers. Waves building to
4 to 8 feet occasionally to 10 feet. 
.SUNDAY...North winds 15 to 25 knots. Snow showers likely in the
morning, then a slight chance of snow showers in the afternoon.
Waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.SUNDAY NIGHT...Northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. Waves subsiding to 2 to 4 feet. 
.MONDAY...Northwest winds 15 to 25 knots. Freezing spray in the
morning. Waves subsiding to 1 to 3 feet. 
.MONDAY NIGHT...Northwest winds 15 to 25 knots backing west after
midnight. Waves subsiding to calm to 2 feet. 
.TUESDAY...West winds 10 to 20 knots backing southwest. Waves
calm to 2 feet. 
.WEDNESDAY...Southwest winds 10 to 20 knots. Waves calm to
2 feet. 

$$