Expires:202009281615;;483610
FZUS63 KMQT 280803
GLFLS 

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
403 AM EDT Mon Sep 28 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...A 29.6 inch trough will swing through Lake Superior 
this morning. A weak ridge of 29.8 inches then briefly moves over
western Lake Superior by Monday evening while a 29.5 inch low 
moves north through Lake Huron and the St. Marys River. This low 
will deepen to 29.1 inches south of James Bay by Tuesday morning. 
Tuesday evening, a 29.6 inch trough will drop south from Canada. A
29.4 inch low pressure system develops within this trough, north 
of Lake Superior on Wednesday before lifting away to the 
northeast.


LSZ266-281615-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
403 AM EDT Mon Sep 28 2020

.EARLY THIS MORNING...West winds 10 to 20 knots. Waves 1 to
3 feet. 
.TODAY...Northwest winds 10 to 20 knots. A chance of showers.
Waves 1 to 3 feet. 
.TONIGHT...Northwest winds 15 to 25 knots backing west late. A
chance of showers. Waves building to 3 to 5 feet occasionally to
7 feet. 
.TUESDAY...Northwest winds 15 to 25 knots backing west in the
afternoon. A chance of showers through early afternoon, then
showers by mid afternoon. Waves subsiding to 2 to 4 feet. 
.TUESDAY NIGHT...West winds 10 to 20 knots. Showers. Waves
subsiding to 1 to 3 feet. 
.WEDNESDAY...Northwest winds 15 to 25 knots. Showers likely
through early afternoon, then a chance of showers by mid
afternoon. Waves building to 2 to 4 feet. 
.WEDNESDAY NIGHT...Northwest winds 15 to 25 knots veering north
after midnight. Showers likely through midnight, then a chance of
showers after midnight. Waves building to 3 to 6 feet
occasionally to 8 feet. 
.THURSDAY...North winds 15 to 25 knots. A chance of rain showers.
Waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.FRIDAY...North winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet. 

$$