National Weather Service United States Department of Commerce

 

FZUS63 KMQT 111605
GLFLS

Experimental Tabular Open Lake Forecast for Lake Superior
National Weather Service Negaunee MI
1205 PM EDT Sat Jul 11 2020

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 broad 29.6 inch area of low pressure over Quebec
today will strengthen slightly as it slowly moves eastward.
Meanwhile, 30.1 inch ridging will be nudging southward into
northern Ontario. This high will extend a 30.0 inch ridge over the
Upper Great Lakes Sunday afternoon through Monday. A 29.7 inch
trough will lift northeastward across Lake Superior late Tuesday
into early Wednesday, followed by 30.0 inch ridging returning by
Thursday.

LSZ162-112200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
952 AM EDT Sat Jul 11 2020 /852 AM CDT Sat Jul 11 2020/

.REST OF TODAY, West winds 5 to 15 knots backing south late.
Waves calm to 2 feet.
.TONIGHT, Northeast winds 5 to 15 knots backing north late.
Waves calm to 2 feet.
.SUNDAY, Northwest winds 5 to 15 knots backing south in the
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT, Southeast winds less than 10 knots becoming east
5 to 15 knots after midnight. Waves calm to 2 feet.
.MONDAY, East winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Waves calm to 2 feet.
.MONDAY NIGHT, East winds 10 to 20 knots veering south after
midnight. A chance of showers through midnight. A chance of
thunderstorms. Showers likely after midnight. Waves building to
1 to 3 feet.
.TUESDAY, Southwest winds 10 to 20 knots becoming west 5 to
15 knots. Showers likely. A chance of thunderstorms. Waves
subsiding to calm to 2 feet.
.WEDNESDAY, Southwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ263-112200-
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-
952 AM EDT Sat Jul 11 2020

.REST OF TODAY, West winds 5 to 15 knots backing southwest late.
Waves calm to 2 feet.
.TONIGHT, North winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY, North winds 5 to 15 knots backing west in the
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT, West winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.
.MONDAY, Southeast winds 5 to 15 knots backing east by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT, Southeast winds 10 to 20 knots veering south
after midnight. A chance of showers. A chance of thunderstorms
after midnight. Waves building to 1 to 3 feet.
.TUESDAY, Southwest winds 10 to 20 knots veering west. Showers
likely. A chance of thunderstorms. A chance of showers. Waves
subsiding to calm to 2 feet.
.WEDNESDAY, Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ264-112200-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
952 AM EDT Sat Jul 11 2020

.REST OF TODAY, Northwest winds 5 to 15 knots backing west in
the afternoon. Waves calm to 2 feet.
.TONIGHT, North winds 5 to 15 knots. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.SUNDAY, North winds 5 to 15 knots backing west late. Waves calm
to 2 feet.
.SUNDAY NIGHT, West winds 5 to 15 knots veering northwest after
midnight. Waves calm to 2 feet.
.MONDAY, Southeast winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT, Southeast winds 5 to 15 knots. A chance of
showers and thunderstorms after midnight. Waves building to 1 to
3 feet.
.TUESDAY, South winds 10 to 20 knots becoming west 5 to
15 knots. Showers likely. A chance of thunderstorms. A chance of
showers. Waves building to 2 to 4 feet, then subsiding to calm to
2 feet.
.WEDNESDAY, Southwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ265-112200-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
952 AM EDT Sat Jul 11 2020

.REST OF TODAY, Northwest winds 10 to 20 knots veering north
late. Waves calm to 2 feet building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.TONIGHT, North winds 10 to 20 knots. Waves building to 1 to
3 feet.
.SUNDAY, Northwest winds 10 to 20 knots. Waves subsiding to calm
to 2 feet.
.SUNDAY NIGHT, Northwest winds 5 to 15 knots backing west after
midnight. Waves calm to 2 feet.
.MONDAY, West winds 5 to 15 knots backing east by mid afternoon.
Waves calm to 2 feet.
.MONDAY NIGHT, Southeast winds 10 to 20 knots. A chance of
showers after midnight. Waves calm to 2 feet.
.TUESDAY, South winds 10 to 20 knots becoming west 5 to
15 knots. Showers likely. A chance of thunderstorms. A chance of
showers. Waves building to 1 to 3 feet, then subsiding to calm to
2 feet.
.WEDNESDAY, West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.

$$

LSZ266-112200-
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-
952 AM EDT Sat Jul 11 2020

.REST OF TODAY, Northwest winds 10 to 20 knots increasing to
15 to 25 knots in the afternoon. Waves 1 to 3 feet building to
2 to 4 feet.
.TONIGHT, Northwest winds 15 to 25 knots veering north after
midnight, then diminishing to 10 to 20 knots late. Waves
subsiding to 1 to 3 feet.
.SUNDAY, North winds 10 to 20 knots backing northwest in the
afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT, Northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.MONDAY, Northwest winds 5 to 15 knots veering east by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT, Southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Waves building to 1 to 3 feet.
.TUESDAY, South winds 10 to 20 knots becoming west 5 to
15 knots. A chance of showers and thunderstorms. Waves building
to 2 to 4 feet, then subsiding to calm to 2 feet.
.WEDNESDAY, West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.

$$

LSZ267-112200-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
952 AM EDT Sat Jul 11 2020

.REST OF TODAY, Northwest winds 10 to 20 knots becoming west
15 to 25 knots in the afternoon, then veering northwest late.
Waves 1 to 3 feet building to 2 to 4 feet.
.TONIGHT, Northwest winds 15 to 25 knots veering north after
midnight, then diminishing to 10 to 20 knots late. Waves
subsiding to 1 to 3 feet.
.SUNDAY, North winds 10 to 20 knots backing northwest in the
afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT, Northwest winds 10 to 20 knots. Waves subsiding
to calm to 2 feet.
.MONDAY, Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT, East winds 5 to 15 knots veering southeast after
midnight. Waves calm to 2 feet.
.TUESDAY, South winds 10 to 20 knots. A chance of showers. A
chance of thunderstorms. Showers likely. Waves calm to 2 feet.
.WEDNESDAY, West winds 10 to 20 knots becoming south 5 to
15 knots. Waves calm to 2 feet.

$$
LSZ261-112200-
MAFOR 1115/
Superior West 11600 11500 11400 11200 12100 11800 11700. Waves 1
foot or less.

Superior North Central 11710 12610 11720 12820 11810 11710. Waves
1 to 3 feet.

Superior South Central 12710 13720 12820 11710. Waves 1 to 3
feet.

Superior East 13720 11730 11720 12820 11810. Waves 2 to 4 feet.

LSZ162-120200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1205 PM EDT Sat Jul 11 2020 /1105 AM CDT Sat Jul 11 2020/

.Tonight...
Weather.............Partly cloudy.
Sfc winds...........Light and variable winds becoming north 5 to 10
                              knots after midnight.
100-ft winds........Light and variable winds becoming north 10 to
                              15 knots after midnight.
Sig waves...........1 to 3 feet.

.SUNDAY...
Weather.............Mostly sunny.
Sfc winds...........North 5 to 10 knots becoming south in the
                              afternoon.
100-ft winds........North 10 to 15 knots becoming south in the
                              afternoon.
Sig waves...........1 to 3 feet.

.SUNDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........East 5 to 10 knots in the evening becoming
                              light and variable.
100-ft winds........East 10 to 15 knots in the evening becoming
                              light and variable.
Sig waves...........1 to 3 feet.

.MONDAY...
Weather.............Mostly sunny.
Sfc winds...........Northeast 10 to 15 knots.
100-ft winds........Northeast 15 to 20 knots.
Sig waves...........1 to 3 feet.

.MONDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
                              mostly cloudy with showers likely with a chance
                              of thunderstorms after midnight.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.TUESDAY...Chance of showers and thunderstorms. Southeast winds
10 to 15 knots. Waves 3 to 5 feet.
.WEDNESDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.
.THURSDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.

$$

LSZ263-120200-
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-
1205 PM EDT Sat Jul 11 2020

.Tonight...
Weather.............Partly cloudy.
Sfc winds...........Light and variable winds becoming north 5 to 10
                              knots after midnight.
100-ft winds........Light and variable winds becoming north 10 to
                              15 knots after midnight.
Sig waves...........1 to 3 feet.

.SUNDAY...
Weather.............Mostly sunny.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........2 to 4 feet.

.SUNDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........East 5 to 10 knots in the evening becoming
                              light and variable.
100-ft winds........East 10 to 15 knots in the evening becoming
                              light and variable.
Sig waves...........1 to 3 feet.

.MONDAY...
Weather.............Mostly sunny.
Sfc winds...........Southeast 5 to 10 knots.
100-ft winds........Southeast 10 to 15 knots.
Sig waves...........1 to 3 feet.

.MONDAY NIGHT...
Weather.............Mostly cloudy, then chance of showers and
                              thunderstorms after midnight.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.TUESDAY...Chance of showers and thunderstorms. Southeast winds
10 to 15 knots. Waves 3 to 5 feet.
.WEDNESDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.
.THURSDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.

$$

LSZ264-120200-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1205 PM EDT Sat Jul 11 2020

.Tonight...
Weather.............Partly cloudy.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots becoming north after
                              midnight.
Sig waves...........2 to 4 feet.

.SUNDAY...
Weather.............Mostly sunny.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.

.SUNDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.

.MONDAY...
Weather.............Mostly sunny.
Sfc winds...........West 5 to 10 knots becoming southeast in the
                              afternoon.
100-ft winds........West 10 to 15 knots becoming southeast in the
                              afternoon.
Sig waves...........1 to 3 feet.

.MONDAY NIGHT...
Weather.............Mostly cloudy, then chance of showers and
                              thunderstorms after midnight.
Sfc winds...........East 5 to 10 knots increasing to southeast 15
                              to 20 knots after midnight.
100-ft winds........East 10 to 15 knots increasing to southeast 20
                              to 25 knots after midnight.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.TUESDAY...Chance of showers and thunderstorms. Southeast winds
10 to 15 knots. Waves 3 to 5 feet.
.WEDNESDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.
.THURSDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.

$$

LSZ265-120200-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1205 PM EDT Sat Jul 11 2020

.Tonight...
Weather.............Partly cloudy.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.

.SUNDAY...
Weather.............Mostly sunny.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.

.SUNDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........2 to 4 feet.

.MONDAY...
Weather.............Sunny.
Sfc winds...........West 5 to 10 knots becoming northeast in the
                              afternoon.
100-ft winds........West 10 to 15 knots becoming northeast in the
                              afternoon.
Sig waves...........1 to 3 feet.

.MONDAY NIGHT...
Weather.............Partly cloudy, then mostly cloudy with chance
                              of showers after midnight.
Sfc winds...........Southeast 10 to 15 knots.
100-ft winds........Southeast 15 to 20 knots.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.TUESDAY...Chance of showers and thunderstorms. Southeast winds
10 to 15 knots. Waves 3 to 5 feet.
.WEDNESDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.
.THURSDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.

$$

LSZ266-120200-
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-
1205 PM EDT Sat Jul 11 2020

.Tonight...
Weather.............Partly cloudy.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.

.SUNDAY...
Weather.............Partly sunny.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 5 feet.

.SUNDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet in the evening.

.MONDAY...
Weather.............Sunny.
Sfc winds...........West 5 to 10 knots in the morning becoming
                              light and variable.
100-ft winds........West 10 to 15 knots in the morning becoming
                              light and variable.
Sig waves...........2 to 4 feet.

.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........North 5 to 10 knots becoming southeast 10 to 15
                              knots after midnight.
100-ft winds........North 10 to 15 knots becoming southeast 15 to
                              20 knots after midnight.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.TUESDAY...Chance of showers and thunderstorms. Southeast winds
10 to 15 knots. Waves 3 to 5 feet.
.WEDNESDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.
.THURSDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.

$$

LSZ267-120200-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1205 PM EDT Sat Jul 11 2020

.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 7 feet.

.SUNDAY...
Weather.............Partly sunny.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.

.SUNDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........3 to 5 feet subsiding to 2 to 4 feet after
                              midnight.
Ocnl waves..........Around 5 feet.

.MONDAY...
Weather.............Sunny.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........2 to 4 feet.

.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........West 5 to 10 knots becoming southeast after
                              midnight.
100-ft winds........West 10 to 15 knots becoming southeast after
                              midnight.
Sig waves...........1 to 3 feet.


.FORECAST DAYS 3 THROUGH 5...

.TUESDAY...Chance of showers and thunderstorms. Southeast winds
10 to 15 knots. Waves 3 to 5 feet.
.WEDNESDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.
.THURSDAY...South winds 5 to 10 knots. Waves 2 to 4 feet.

$$

LSZ261-120200-
MAFOR 1121/
Superior West 11400 11200 12100 11800 11700 11600 11500. Waves 1
foot or less.

Superior North Central 11610 11720 12820 11810 13710. Waves 1 to
3 feet.

Superior South Central 13720 12820 13710. Waves 1 to 3 feet.

Superior East 11720 11730 11720 12820 11810 12710. Waves 2 to 4
feet.

$$

 

Occasional waves will only be displayed when values meet or exceed 5 feet.

 

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