Expires:202001181045;;114079
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. 


LSZ162-181045-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
935 PM EST Fri Jan 17 2020 /835 PM CST Fri Jan 17 2020/

.REST OF TONIGHT...Southeast winds 15 to 25 knots increasing to
20 to 30 knots by midnight. Snow. Waves 2 to 4 feet building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.SATURDAY...Southeast winds 10 to 20 knots veering west by late
morning, then becoming northwest 20 to 30 knots by mid afternoon.
Snow. Waves subsiding to 1 to 3 feet, then building to 3 to
6 feet occasionally to 8 feet. 
.SATURDAY NIGHT...Northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 20 to 30 knots
late. Freezing spray. Scattered snow showers. Waves building to
4 to 8 feet occasionally to 10 feet. 
.SUNDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. A slight chance of snow showers. Waves
subsiding to 2 to 4 feet. 
.SUNDAY NIGHT...Northwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Freezing spray. Waves subsiding to 1 to
3 feet. 
.MONDAY...Northwest winds 5 to 15 knots backing west in the
afternoon. Freezing spray in the morning. Waves 1 to 3 feet. 
.MONDAY NIGHT...West winds 5 to 15 knots. Waves 1 to 3 feet. 
.TUESDAY...Southwest winds 15 to 25 knots increasing to 20 to
30 knots. Waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.WEDNESDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of rain showers. Waves subsiding to 1 to
3 feet. 

$$