470  
FZUS53 KDTX 200913  
NSHDTX  
 
NEARSHORE MARINE FORECAST FOR MICHIGAN  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
413 AM EST MON JAN 20 2025  
 
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE  
 
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.  
 
LHZ422-201715-  
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-  
413 AM EST MON JAN 20 2025  
   
TODAY
 
WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS  
IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY IN THE MORNING  
BECOMING PARTLY CLOUDY.    
TONIGHT
 
WEST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO  
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY.    
TUESDAY
 
WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS  
IN THE LATE MORNING AND AFTERNOON. PARTLY CLOUDY.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY.  
 
WAVES OMITTED DUE TO ICE COVERAGE.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ421-201715-  
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER  
SAGINAW BAY-  
413 AM EST MON JAN 20 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
 
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 4 PM EST THIS  
AFTERNOON THROUGH TUESDAY MORNING...  
   
TODAY
 
WEST WINDS 15 TO 20 KNOTS INCREASING TO 20 TO 25 KNOTS  
IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY IN THE MORNING  
BECOMING PARTLY CLOUDY. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY  
AROUND 7 FEET.    
TONIGHT
 
WEST WINDS 20 TO 25 KNOTS. PARTLY CLOUDY. A SLIGHT  
CHANCE OF LIGHT SNOW SHOWERS IN THE EVENING. HEAVY FREEZING  
SPRAY. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.    
TUESDAY
 
WEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. WAVES 3 TO  
5 FEET. WAVES OCCASIONALLY AROUND 7 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 15 TO 20 KNOTS INCREASING TO  
20 TO 25 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 3 TO 5 FEET.  
WAVES OCCASIONALLY AROUND 7 FEET.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ441-201715-  
PORT AUSTIN TO HARBOR BEACH MI-  
413 AM EST MON JAN 20 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
 
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 4 PM EST THIS  
AFTERNOON THROUGH TUESDAY MORNING...  
   
TODAY
 
WEST WINDS 15 TO 20 KNOTS INCREASING TO 20 TO 25 KNOTS  
IN THE LATE MORNING AND AFTERNOON. PARTLY CLOUDY. A CHANCE OF  
LIGHT SNOW SHOWERS IN THE MORNING, THEN A SLIGHT CHANCE OF LIGHT  
SNOW SHOWERS IN THE AFTERNOON. WAVES 4 TO 6 FEET. WAVES  
OCCASIONALLY AROUND 8 FEET.    
TONIGHT
 
WEST WINDS 20 TO 25 KNOTS. PARTLY CLOUDY WITH A CHANCE  
OF LIGHT SNOW SHOWERS. HEAVY FREEZING SPRAY. WAVES 4 TO 6 FEET.  
WAVES OCCASIONALLY AROUND 8 FEET.    
TUESDAY
 
WEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. WAVES 3 TO  
5 FEET. WAVES OCCASIONALLY AROUND 7 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY.  
WAVES 3 TO 5 FEET. WAVES OCCASIONALLY AROUND 7 FEET.  
 
WAVE HEIGHTS ARE FOR ICE FREE AREAS.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ442-201715-  
HARBOR BEACH TO PORT SANILAC MI-  
413 AM EST MON JAN 20 2025  
   
TODAY
 
WEST WINDS 15 TO 20 KNOTS INCREASING TO 20 TO 25 KNOTS  
IN THE AFTERNOON. MOSTLY SUNNY WITH A CHANCE OF LIGHT SNOW  
SHOWERS IN THE MORNING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE  
OF LIGHT SNOW SHOWERS IN THE AFTERNOON. WAVES 2 TO 4 FEET.    
TONIGHT
 
WEST WINDS 20 TO 25 KNOTS DIMINISHING TO 15 TO  
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY WITH A  
SLIGHT CHANCE OF LIGHT SNOW SHOWERS. WAVES 2 TO 4 FEET SUBSIDING  
TO 1 TO 3 FEET IN THE LATE EVENING AND OVERNIGHT.    
TUESDAY
 
WEST WINDS 15 TO 20 KNOTS. MOSTLY SUNNY IN THE MORNING  
BECOMING PARTLY CLOUDY. WAVES 1 TO 3 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 15 TO 20 KNOTS. MOSTLY CLEAR.  
WAVES 1 TO 3 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ443-201715-  
PORT SANILAC TO PORT HURON MI-  
413 AM EST MON JAN 20 2025  
   
TODAY
 
WEST WINDS 15 TO 20 KNOTS. MOSTLY SUNNY IN THE MORNING  
BECOMING PARTLY CLOUDY. A SLIGHT CHANCE OF LIGHT SNOW SHOWERS.  
WAVES 1 TO 3 FEET.    
TONIGHT
 
WEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY WITH A SLIGHT  
CHANCE OF LIGHT SNOW SHOWERS. WAVES 1 TO 3 FEET.    
TUESDAY
 
WEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. WAVES 1 TO  
3 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 15 TO 20 KNOTS. MOSTLY CLEAR.  
WAVES 1 TO 3 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LEZ444-201715-  
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-  
413 AM EST MON JAN 20 2025  
   
TODAY
 
WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS  
IN THE LATE MORNING AND AFTERNOON. PARTLY CLOUDY.    
TONIGHT
 
WEST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO  
15 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY.    
TUESDAY
 
WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS  
IN THE LATE MORNING AND AFTERNOON. PARTLY CLOUDY.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLEAR.  
 
WAVES OMITTED DUE TO ICE COVERAGE.  
 
SEE LAKE ERIE OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 
THE WATER TEMPERATURE AT BELLE ISLE IS 32 DEGREES.  
 

 
 
BT  
 
YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE  
A WWW.WEATHER.GOV/GREATLAKES  
 
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