Marine Weather Forecast from Environment Canada

Winds


Issued 06:30 PM EST
25 January 2020

Tonight and Sunday. Wind north 15 knots increasing to north 20 late overnight then diminishing to north 15 Sunday evening.

Extended Forecast


Issued 06:30 PM EST
25 January 2020
Monday Wind northeast 15 knots.
Tuesday Wind northeast 15 knots.
Wednesday Wind light.

Waves


Issued 06:30 PM EST
25 January 2020

Tonight and Sunday. Waves one half metre building to one early Sunday morning.

Weather & Visibility


Issued 06:30 PM EST
25 January 2020

Tonight and Sunday.Flurries or showers changing to periods of snow Sunday morning and ending near noon Sunday. Visibility 1 mile or less in snow.

Ice Forecast*


Issued 12:00 PM EST
25 January 2020

Today Tonight and Sunday Open water except 1 tenth thin lake ice along parts of the southern shore.

*Ice Forecast and Warnings also apply to U.S. waters

 

Lake Superior Mafor Forecast and Weather Conditions
From NOAA National Weather Service Weather Forecast Office



  
552  
FZUS63 KMQT 260244  
GLFLS  
 
OPEN LAKE FORECAST FOR LAKE SUPERIOR  
NATIONAL WEATHER SERVICE MARQUETTE MI  
944 PM EST SAT JAN 25 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 29.8 INCH LOW IS SLOWLY MOVING NORTHEASTWARD INTO  
SOUTHERN ONTARIO, ARRIVING BY SUNDAY MORNING WHILE DEEPENING TO  
29.6 INCHES. THIS LOW WILL EXTEND A 29.8 INCH TROUGH ACROSS LAKE  
SUPERIOR THROUGH SUNDAY EVENING. A 30.1 INCH HIGH PRESSURE RETURNS  
TO THE REGION MONDAY NIGHT, STRENGTHENING TO 30.2 INCHES BY  
WEDNESDAY. ON THURSDAY, THE HIGH PRESSURE BEGINS TO LEAVE THE AREA.  
 
LSZ162-261045-  
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND  
PORTAGE MN BEYOND 5NM-  
944 PM EST SAT JAN 25 2020 /844 PM CST SAT JAN 25 2020/  
   
REST OF TONIGHT
 
NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH BY  
MIDNIGHT, THEN BACKING NORTHWEST LATE. A SLIGHT CHANCE OF DRIZZLE  
AND SNOW SHOWERS LATE IN THE EVENING. WAVES CALM TO 2 FEET.    
SUNDAY
 
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
SUNDAY NIGHT
 
NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST LATE.  
WAVES CALM TO 2 FEET.    
MONDAY
 
NORTH WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN  
10 KNOTS IN THE AFTERNOON. FLURRIES IN THE MORNING. WAVES CALM TO  
2 FEET.    
MONDAY NIGHT
 
NORTH WINDS LESS THAN 10 KNOTS. WAVES CALM TO  
2 FEET.    
TUESDAY
 
NORTH WINDS LESS THAN 10 KNOTS VEERING NORTHEAST IN  
THE AFTERNOON. WAVES CALM TO 2 FEET.    
TUESDAY NIGHT
 
EAST WINDS LESS THAN 10 KNOTS. WAVES CALM TO  
2 FEET.    
WEDNESDAY
 
EAST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN  
10 KNOTS. WAVES CALM TO 2 FEET.    
THURSDAY
 
WEST WINDS LESS THAN 10 KNOTS BECOMING SOUTHWEST 5 TO  
15 KNOTS. WAVES CALM TO 2 FEET.  
 

 
 
LSZ263-261045-  
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-  
944 PM EST SAT JAN 25 2020  
   
REST OF TONIGHT
 
NORTH WINDS 10 TO 20 KNOTS. PATCHY FOG. A  
CHANCE OF DRIZZLE AND SNOW SHOWERS. WAVES 2 TO 4 FEET.    
SUNDAY
 
NORTH WINDS 10 TO 20 KNOTS. PATCHY FOG IN THE MORNING.  
A SLIGHT CHANCE OF DRIZZLE AND SNOW SHOWERS. WAVES 2 TO 4 FEET.    
SUNDAY NIGHT
 
NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO  
15 KNOTS LATE. SPRINKLES AND PATCHY DRIZZLE IN THE EVENING.  
FLURRIES. WAVES SUBSIDING TO 1 TO 3 FEET.    
MONDAY
 
NORTH WINDS 5 TO 15 KNOTS. SPRINKLES AND FLURRIES IN  
THE MORNING. WAVES SUBSIDING TO CALM TO 2 FEET.    
MONDAY NIGHT
 
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST IN THE  
AFTERNOON. WAVES CALM TO 2 FEET.    
TUESDAY NIGHT
 
EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
WEDNESDAY
 
NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.   
THURSDAY
 
SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.  
 

 
 
LSZ264-261045-  
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU  
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-  
944 PM EST SAT JAN 25 2020  
   
REST OF TONIGHT
 
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO  
10 TO 20 KNOTS BY MIDNIGHT. PATCHY FOG. SNOW SHOWERS AND DRIZZLE  
LIKELY LATE IN THE EVENING. A CHANCE OF SNOW SHOWERS AFTER  
MIDNIGHT. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET OCCASIONALLY  
TO 7 FEET.    
SUNDAY
 
NORTH WINDS 10 TO 20 KNOTS. PATCHY FOG. A SLIGHT CHANCE  
OF SNOW SHOWERS. A SLIGHT CHANCE OF DRIZZLE IN THE AFTERNOON.  
WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET.    
SUNDAY NIGHT
 
NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO  
15 KNOTS LATE. FLURRIES. WAVES SUBSIDING TO 1 TO 3 FEET.    
MONDAY
 
NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO  
2 FEET.    
MONDAY NIGHT
 
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTH WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN  
10 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.    
TUESDAY NIGHT
 
NORTHEAST WINDS LESS THAN 10 KNOTS. WAVES CALM  
TO 2 FEET.    
WEDNESDAY
 
NORTHEAST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS  
THAN 10 KNOTS. WAVES CALM TO 2 FEET.    
THURSDAY
 
SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.  
 

 
 
LSZ265-261045-  
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI  
BEYOND 5NM FROM SHORE-  
944 PM EST SAT JAN 25 2020  
   
REST OF TONIGHT
 
NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO  
25 KNOTS BY MIDNIGHT, THEN BACKING NORTHWEST LATE. PATCHY FOG.  
DRIZZLE LIKELY LATE IN THE EVENING. SNOW SHOWERS LIKELY. WAVES  
2 TO 4 FEET BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.    
SUNDAY
 
NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. PATCHY  
FOG. A CHANCE OF SNOW SHOWERS. A SLIGHT CHANCE OF DRIZZLE AND  
FREEZING DRIZZLE IN THE AFTERNOON. WAVES 3 TO 5 FEET OCCASIONALLY  
TO 7 FEET.    
SUNDAY NIGHT
 
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO  
20 KNOTS LATE. FLURRIES AND PATCHY DRIZZLE. WAVES SUBSIDING TO  
2 TO 4 FEET.    
MONDAY
 
NORTH WINDS 10 TO 20 KNOTS. FLURRIES IN THE MORNING.  
WAVES SUBSIDING TO CALM TO 2 FEET.    
MONDAY NIGHT
 
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
TUESDAY NIGHT
 
NORTH WINDS LESS THAN 10 KNOTS INCREASING TO  
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.    
WEDNESDAY
 
NORTH WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES  
CALM TO 2 FEET.    
THURSDAY
 
SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO  
20 KNOTS. WAVES CALM TO 2 FEET.  
 

 
 
LSZ266-261045-  
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-  
944 PM EST SAT JAN 25 2020  
   
REST OF TONIGHT
 
NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH  
10 TO 20 KNOTS BY MIDNIGHT, THEN INCREASING TO 15 TO 25 KNOTS  
LATE. PATCHY FOG. A CHANCE OF SNOW SHOWERS AND DRIZZLE LATE IN  
THE EVENING. SNOW SHOWERS AND DRIZZLE LIKELY AFTER MIDNIGHT.  
WAVES 2 TO 4 FEET BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.   
SUNDAY
 
NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO  
25 KNOTS. PATCHY FOG. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO  
4 TO 7 FEET OCCASIONALLY TO 9 FEET, THEN SUBSIDING TO 3 TO 6 FEET  
OCCASIONALLY TO 8 FEET.    
SUNDAY NIGHT
 
NORTH WINDS 15 TO 25 KNOTS. FLURRIES AND PATCHY  
DRIZZLE IN THE EVENING. WAVES SUBSIDING TO 2 TO 4 FEET.    
MONDAY
 
NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO  
2 FEET.    
MONDAY NIGHT
 
NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO  
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST IN THE  
AFTERNOON. WAVES CALM TO 2 FEET.    
TUESDAY NIGHT
 
NORTHEAST WINDS LESS THAN 10 KNOTS BECOMING EAST  
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.    
WEDNESDAY
 
EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
THURSDAY
 
SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO  
20 KNOTS. WAVES CALM TO 2 FEET.  
 

 
 
LSZ267-261045-  
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF  
SHORE TO THE US/CANADIAN BORDER-  
944 PM EST SAT JAN 25 2020  
   
REST OF TONIGHT
 
NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH BY  
MIDNIGHT, THEN INCREASING TO 10 TO 20 KNOTS LATE. PATCHY FOG. A  
CHANCE OF DRIZZLE AND SNOW SHOWERS LATE IN THE EVENING. SNOW  
SHOWERS AND DRIZZLE LIKELY AFTER MIDNIGHT. WAVES CALM TO 2 FEET  
BUILDING TO 2 TO 4 FEET.    
SUNDAY
 
NORTH WINDS 15 TO 25 KNOTS. PATCHY FOG. SNOW SHOWERS  
LIKELY IN THE MORNING. A SLIGHT CHANCE OF SNOW SHOWERS AND  
DRIZZLE IN THE AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET  
OCCASIONALLY TO 7 FEET, THEN SUBSIDING TO 2 TO 4 FEET.    
SUNDAY NIGHT
 
NORTH WINDS 15 TO 25 KNOTS. SPRINKLES, FLURRIES  
AND PATCHY DRIZZLE IN THE EVENING. WAVES SUBSIDING TO 1 TO  
3 FEET.    
MONDAY
 
NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO  
2 FEET.    
MONDAY NIGHT
 
NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO  
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
TUESDAY NIGHT
 
NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST AFTER  
MIDNIGHT. WAVES CALM TO 2 FEET.    
WEDNESDAY
 
EAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES CALM  
TO 2 FEET.    
THURSDAY
 
SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO  
20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.  
 

 
LSZ261-261045-  
MAFOR 2604/  
SUPERIOR WEST 15810 11710 11810. WAVES 1 TO 3 FEET OVERNIGHT.  
WAVES 2 FEET OR LESS SUNDAY AND SUNDAY EVENING.  
 
SUPERIOR NORTH CENTRAL 11830 11820 12830 14820. A CHANCE OF SNOW  
SHOWERS OVERNIGHT AND SUNDAY MORNING. WAVES 2 TO 5 FEET OVERNIGHT,  
SUNDAY, AND SUNDAY EVENING.  
 
SUPERIOR SOUTH CENTRAL 11827 13737 11830 13820. A CHANCE OF LIGHT  
FREEZING DRIZZLE WITH PATCHY DRIZZLE SUNDAY EVENING. WAVES 3 TO 6  
FEET.  
 
SUPERIOR EAST 11810 11827 11837 11830 14820. A CHANCE OF DRIZZLE  
LATE THIS EVENING. WAVES 1 TO 3 FEET BUILDING TO 2 TO 6 FEET  
OVERNIGHT AND SUNDAY, AND SUNDAY EVENING.  
 

 
 
TAP  
 
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT  
WEATHER.GOV/MQT/GLFTABLE  
 
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:  
WEATHER.GOV/GREATLAKES  
 




Random Weather Facts

SNOW
Snowflakes generally fall from the sky at speeds between one and five miles per hour.