815  
FZUS63 KLOT 240813  
GLFLM  
 
OPEN LAKE FORECAST FOR LAKE MICHIGAN  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
213 AM CST TUE NOV 24 2009  
 
FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN  
   
SYNOPSIS
 
LOW PRESSURE OF 29.5 INCHES OVER NORTHEAST KANSAS WILL  
BEGIN TO FILL SLIGHTLY TO 29.6 INCHES AS IT MOVES TO SOUTHEAST  
IOWA BY THIS EVENING...AND TO 29.7 INCHES AS IT LIFTS ACROSS  
SOUTHEASTERN WISCONSIN BY WEDNESDAY MORNING. THE LOW WILL THEN  
DEEPEN SLIGHTLY TO 29.6 INCHES AGAIN AS IT CONTINUES NORTHEAST  
ACROSS NORTHERN LAKE MICHIGAN WEDNESDAY NIGHT. THE LOW WILL TRAIL  
A SECONDARY COLD FRONT ACROSS THE LAKE THURSDAY IN A TROUGH  
AVERAGING 29.7 INCHES...BEFORE PULLING AWAY ACROSS SOUTHERN QUEBEC  
THURSDAY NIGHT. THIS WILL RESULT IN A PERIOD OF GUSTY NORTHWEST  
WINDS LATE THURSDAY INTO FRIDAY AS COLD AIR SURGES ACROSS THE  
WESTERN LAKES. HIGH PRESSURE RIDGING OF 30.0 INCHES WILL THEN  
BUILD ACROSS THE WESTERN LAKES FRIDAY NIGHT AND SATURDAY.  
 
LMZ261-362-364-366-563-565-567-868-241715-  
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE  
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH  
FOX ISLAND 5 NM OFFSHORE-  
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID  
LAKE-  
213 AM CST TUE NOV 24 2009  
   
TODAY
 
SOUTHEAST WINDS AROUND 10 KT BECOMING EAST. SLIGHT  
CHANCE OF SHOWERS LATE. WAVES 1 TO 3 FT.   
TONIGHT
 
EAST WINDS 10 TO 15 KT. SHOWERS LIKELY. WAVES 1 TO 3  
FT.   
WEDNESDAY
 
EAST WINDS 10 TO 15 KT VEERING TO SOUTHWEST. SHOWERS  
LIKELY. WAVES 1 TO 2 FT.   
WEDNESDAY NIGHT
 
SOUTHWEST WINDS 10 TO 20 KT VEERING NORTHWEST  
TOWARD MORNING. SHOWERS LIKELY. WAVES BUILDING TO 2 TO 4 FT.   
THURSDAY
 
NORTHWEST WINDS 10 TO 20 KT INCREASING TO 30 KT IN THE  
AFTERNOON. RAIN AND SNOW SHOWERS LIKELY. WAVES 2 TO 4 FT BUILDING  
TO 4 TO 6 FT IN THE AFTERNOON.   
THURSDAY NIGHT
 
NORTHWEST WINDS TO 30 KT. CHANCE OF RAIN AND  
SNOW SHOWERS. WAVES 5 TO 7 FT.   
FRIDAY
 
NORTHWEST WINDS 20 TO 25 KT BECOMING NORTH AND  
DIMINISHING TO 15 TO 20 KT. CHANCE OF SNOW SHOWERS. WAVES 5 TO 7  
FT SUBSIDING TO 3 TO 5 FT.   
SATURDAY
 
NORTHWEST WINDS AROUND 10 KT BACKING SOUTH. WAVES 2 TO  
4 FT SUBSIDING TO 1 TO 3 FT.  
 

 
 
LMZ080-669-671-673-675-777-779-870-872-874-876-878-241715-  
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE  
TO MID LAKE-  
LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID  
LAKE-  
LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID  
LAKE-  
LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID  
LAKE-  
LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO  
MID LAKE-  
213 AM CST TUE NOV 24 2009  
   
TODAY
 
SOUTHEAST WINDS 5 TO 10 KT BECOMING EAST AT 10 TO 15 KT  
THIS AFTERNOON. CHANCE OF SHOWERS THIS AFTERNOON. WAVES 1 TO 3  
FT.   
TONIGHT
 
EAST WINDS 10 TO 15 KT BECOMING SOUTH AND INCREASING  
TO 10 TO 20 KT. SHOWERS LIKELY THROUGH EARLY EVENING...THEN  
SHOWERS FROM LATE EVENING ON. WAVES 1 TO 3 FT BUILDING TO 2 TO 4  
FT.   
WEDNESDAY
 
SOUTH WINDS 10 TO 20 KT BECOMING WEST TO 30 KT IN  
THE AFTERNOON. SHOWERS LIKELY. WAVES 2 TO 4 FT BUILDING TO 3 TO 5  
FT.   
WEDNESDAY NIGHT
 
WEST WINDS TO 30 KT BECOMING SOUTHWEST AND  
DIMINISHING TO 15 TO 25 KT. CHANCE OF RAIN AND SNOW SHOWERS.  
WAVES 4 TO 6 FT.   
THURSDAY
 
SOUTHWEST WINDS 10 TO 20 KT BECOMING NORTHWEST AND  
INCREASING TO TO 30 KT. RAIN AND SNOW SHOWERS LIKELY. WAVES 3 TO 5  
FT BUILDING TO 4 TO 6 FT IN THE AFTERNOON.   
THURSDAY NIGHT
 
NORTHWEST WINDS TO 30 KT. CHANCE OF SNOW AND  
SHOWERS. WAVES 5 TO 7 FT.   
FRIDAY
 
NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT  
BY LATE AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 5 TO 7 FT.   
SATURDAY
 
SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH. WAVES 2  
TO 4 FT.  
 

 
 
LMZ761-241715-  
MAFOR 2410/  
MICHIGAN NORTH 14300 13200 11216. CHANCE OF SHOWERS THIS EVENING.  
SHOWERS LIKELY AFTER MIDNIGHT TONIGHT. WAVES 1 TO 3 FEET. 220103.  
 
MICHIGAN SOUTH 14300 11210 12316 11326. CHANCE OF SHOWERS THIS  
AFTERNOON. SHOWERS TONIGHT. WAVES 1 TO 3 FEET TODAY BUILDING TO 2  
TO 4 FEET TONIGHT. 220103.  
 

 
 
RATZER  
 
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