511  
FZUS53 KDTX 210803  
NSHDTX  
 
NEARSHORE MARINE FORECAST FOR MICHIGAN  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
401 AM EDT MON OCT 21 2019  
 
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.  
 
LHZ422-211500-  
INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-  
401 AM EDT MON OCT 21 2019  
 
...GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH  
LATE TONIGHT...  
   
TODAY
 
EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHEAST 20 TO  
25 KNOTS WITH GUSTS TO 35 KNOT GALES. RAIN SHOWERS IN THE  
AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET LATE IN THE  
AFTERNOON.    
TONIGHT
 
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 35 KNOT GALES  
BECOMING SOUTHWEST 15 TO 20 KNOTS AFTER MIDNIGHT. RAIN SHOWERS  
AND A CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
WITH A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES  
3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET AFTER MIDNIGHT. WAVES  
OCCASIONALLY AROUND 7 FEET.    
TUESDAY
 
SOUTH WINDS 20 TO 25 KNOTS BECOMING SOUTHWEST TO  
30 KNOTS IN THE LATE MORNING AND AFTERNOON. GUSTS TO 35 KNOT  
GALES. PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH A  
CHANCE OF LIGHT SHOWERS IN THE AFTERNOON. WAVES 3 TO 5 FEET.  
WAVES OCCASIONALLY AROUND 7 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS TO 30 KNOTS WITH GUSTS TO  
35 KNOT GALES DIMINISHING TO 20 TO 25 KNOTS WITH GUSTS TO  
30 KNOTS IN THE LATE EVENING AND OVERNIGHT. MOSTLY CLOUDY. WAVES  
3 TO 5 FEET. WAVES OCCASIONALLY AROUND 7 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ421-211500-  
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER  
SAGINAW BAY-  
401 AM EDT MON OCT 21 2019  
 
...GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH  
LATE TONIGHT...  
   
TODAY
 
EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHEAST 20 TO  
25 KNOTS WITH GUSTS TO 35 KNOT GALES. MOSTLY CLOUDY. A CHANCE OF  
LIGHT SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO  
3 TO 5 FEET IN THE AFTERNOON. WAVES OCCASIONALLY AROUND 7 FEET.    
TONIGHT
 
SOUTHEAST WINDS TO 30 KNOTS WITH GUSTS TO 35 KNOT  
GALES BECOMING SOUTH 20 TO 25 KNOTS WITH GUSTS TO 35 KNOT GALES  
IN THE LATE EVENING AND EARLY MORNING, THEN BECOMING SOUTHWEST  
15 TO 20 KNOTS AFTER MIDNIGHT. BECOMING PARTLY CLOUDY AFTER  
MIDNIGHT. RAIN SHOWERS AND A CHANCE OF THUNDERSTORMS. WAVES 5 TO  
7 FEET SUBSIDING TO 3 TO 5 FEET AFTER MIDNIGHT. WAVES  
OCCASIONALLY AROUND 10 FEET.    
TUESDAY
 
SOUTH WINDS 20 TO 25 KNOTS INCREASING TO 30 KNOTS IN  
THE LATE MORNING AND AFTERNOON. GUSTS TO 35 KNOT GALES. PARTLY  
CLOUDY. A CHANCE OF LIGHT SHOWERS IN THE AFTERNOON. WAVES 4 TO  
6 FEET. WAVES OCCASIONALLY AROUND 8 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS TO 30 KNOTS DIMINISHING TO 20 TO  
25 KNOTS IN THE LATE EVENING AND OVERNIGHT. GUSTS TO 35 KNOT  
GALES. MOSTLY CLOUDY. WAVES 4 TO 6 FEET. WAVES OCCASIONALLY  
AROUND 7 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ441-211500-  
PORT AUSTIN TO HARBOR BEACH MI-  
401 AM EDT MON OCT 21 2019  
 
...GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH  
LATE TONIGHT...  
   
TODAY
 
EAST WINDS 10 TO 15 KNOTS BECOMING SOUTHEAST 20 TO  
25 KNOTS WITH GUSTS TO 35 KNOT GALES. MOSTLY CLOUDY. LIGHT  
SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 4 TO  
6 FEET IN THE AFTERNOON. WAVES OCCASIONALLY AROUND 8 FEET.    
TONIGHT
 
SOUTHEAST WINDS TO 30 KNOTS WITH GUSTS TO 35 KNOT  
GALES BECOMING SOUTHWEST 10 TO 15 KNOTS AFTER MIDNIGHT. BECOMING  
PARTLY CLOUDY AFTER MIDNIGHT. RAIN SHOWERS AND A CHANCE OF  
THUNDERSTORMS. WAVES 6 TO 9 FEET SUBSIDING TO 4 TO 6 FEET AFTER  
MIDNIGHT. WAVES OCCASIONALLY AROUND 12 FEET.    
TUESDAY
 
SOUTH WINDS 15 TO 20 KNOTS INCREASING TO 20 TO  
25 KNOTS WITH GUSTS TO 30 KNOTS IN THE LATE MORNING AND  
AFTERNOON. PARTLY CLOUDY WITH A CHANCE OF LIGHT SHOWERS. WAVES  
1 TO 3 FEET BUILDING TO 4 TO 6 FEET IN THE LATE MORNING AND  
AFTERNOON. WAVES OCCASIONALLY AROUND 8 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS TO 30 KNOTS DIMINISHING TO 20 TO  
25 KNOTS WITH GUSTS TO 30 KNOTS IN THE LATE EVENING AND  
OVERNIGHT. MOSTLY CLOUDY IN THE EVENING BECOMING PARTLY CLOUDY.  
WAVES 3 TO 5 FEET. WAVES OCCASIONALLY AROUND 7 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ442-211500-  
HARBOR BEACH TO PORT SANILAC MI-  
401 AM EDT MON OCT 21 2019  
 
...GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH  
LATE TONIGHT...  
   
TODAY
 
EAST WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST 20 TO  
25 KNOTS WITH GUSTS TO 30 KNOTS. MOSTLY CLOUDY. LIGHT SHOWERS IN  
THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 4 TO 6 FEET IN THE  
AFTERNOON. WAVES OCCASIONALLY AROUND 8 FEET.    
TONIGHT
 
SOUTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS TO 35 KNOT  
GALES BECOMING SOUTHWEST 10 TO 15 KNOTS AFTER MIDNIGHT. RAIN  
SHOWERS AND A CHANCE OF THUNDERSTORMS. WAVES 6 TO 9 FEET  
SUBSIDING TO 4 TO 6 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY  
AROUND 12 FEET.    
TUESDAY
 
SOUTH WINDS 15 TO 20 KNOTS INCREASING TO 20 TO  
25 KNOTS WITH GUSTS TO 30 KNOTS IN THE LATE MORNING AND  
AFTERNOON. PARTLY CLOUDY WITH A CHANCE OF LIGHT SHOWERS. WAVES  
2 TO 4 FEET BUILDING TO 4 TO 6 FEET IN THE LATE MORNING AND  
AFTERNOON. WAVES OCCASIONALLY AROUND 8 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS TO  
30 KNOTS DIMINISHING TO 15 TO 20 KNOTS AFTER MIDNIGHT. MOSTLY  
CLOUDY IN THE EVENING BECOMING PARTLY CLOUDY. WAVES 2 TO 4 FEET.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LHZ443-211500-  
PORT SANILAC TO PORT HURON MI-  
401 AM EDT MON OCT 21 2019  
 
...GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH  
LATE TONIGHT...  
   
TODAY
 
EAST WINDS 5 TO 10 KNOTS BECOMING SOUTHEAST 15 TO  
20 KNOTS WITH GUSTS TO 30 KNOTS IN THE LATE MORNING AND  
AFTERNOON. PARTLY CLOUDY IN THE MORNING, THEN CLOUDY WITH LIGHT  
SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 3 TO  
5 FEET IN THE AFTERNOON. WAVES OCCASIONALLY AROUND 7 FEET.    
TONIGHT
 
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS  
BECOMING SOUTHWEST 10 TO 15 KNOTS AFTER MIDNIGHT. RAIN SHOWERS  
AND A CHANCE OF THUNDERSTORMS. WAVES 5 TO 7 FEET SUBSIDING TO  
2 TO 4 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND 10 FEET.    
TUESDAY
 
SOUTH WINDS 15 TO 20 KNOTS INCREASING TO 20 TO  
25 KNOTS WITH GUSTS TO 30 KNOTS IN THE LATE MORNING AND  
AFTERNOON. PARTLY CLOUDY WITH A CHANCE OF LIGHT SHOWERS. WAVES  
2 TO 4 FEET BUILDING TO 3 TO 5 FEET IN THE LATE MORNING AND  
AFTERNOON. WAVES OCCASIONALLY AROUND 7 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS TO  
30 KNOTS DIMINISHING TO 15 TO 20 KNOTS IN THE LATE EVENING AND  
OVERNIGHT. MOSTLY CLOUDY IN THE EVENING BECOMING PARTLY CLOUDY.  
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET IN THE LATE EVENING  
AND OVERNIGHT.  
 
SEE LAKE HURON OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 

 
 
LEZ444-211500-  
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-  
401 AM EDT MON OCT 21 2019  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING  
THROUGH LATE TONIGHT...  
   
TODAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS INCREASING TO 20 TO  
25 KNOTS. LIGHT SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FEET  
BUILDING TO 2 TO 4 FEET LATE IN THE AFTERNOON.    
TONIGHT
 
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS  
DIMINISHING TO 15 TO 20 KNOTS IN THE LATE EVENING AND EARLY  
MORNING, THEN BECOMING SOUTHWEST 10 TO 15 KNOTS AFTER MIDNIGHT.  
BECOMING PARTLY CLOUDY AFTER MIDNIGHT. RAIN SHOWERS AND A CHANCE  
OF THUNDERSTORMS. WAVES 2 TO 4 FEET.    
TUESDAY
 
SOUTHWEST WINDS 15 TO 20 KNOTS INCREASING TO 20 TO 25  
KNOTS WITH GUSTS TO 35 KNOT GALES IN THE LATE MORNING AND AFTERNOON.  
MOSTLY SUNNY IN THE MORNING BECOMING PARTLY CLOUDY. WAVES 2 TO 4  
FEET. A GALE WARNING MAY BE NEEDED.   
TUESDAY NIGHT
 
SOUTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS TO  
30 KNOTS DIMINISHING TO 15 TO 20 KNOTS IN THE LATE EVENING AND  
OVERNIGHT. PARTLY CLOUDY. WAVES 2 TO 4 FEET.  
 
SEE LAKE ERIE OPEN LAKE FORECAST FOR DAYS 3 THROUGH 5.  
 
THE WATER TEMPERATURE AT BELLE ISLE IS 53 DEGREES.  
 

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