240  
FZUS53 KLOT 171532  
SRFLOT  
 
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES  
NATIONAL WEATHER SERVICE CHICAGO IL  
1032 AM CDT THU JUL 17 2025  
 
ILZ006-172130-  
LAKE-  
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK  
1032 AM CDT THU JUL 17 2025  
   
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH FRIDAY MORNING
 
 
   
REST OF TODAY
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................3 TO 5 FEET BUILDING TO 4 TO 6 FEET.  
WATER TEMPERATURE...........70-74.  
WEATHER.....................MOSTLY CLOUDY.  
HIGH TEMPERATURE............IN THE UPPER 60S.  
WINDS.......................NORTH WINDS 10 TO 15 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 6 FEET.  
WEATHER.....................PARTLY CLOUDY.  
LOW TEMPERATURE.............IN THE MID 60S.  
WINDS.......................NORTHEAST WINDS 10 TO 15 MPH.  
   
FRIDAY
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET.  
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY  
SUNNY.  
HIGH TEMPERATURE............IN THE MID 70S.  
WINDS.......................EAST WINDS 5 TO 10 MPH.  
   
SWIM RISK OUTLOOK
 
   
FRIDAY NIGHT
 
LOW SWIM RISK*.    
SATURDAY
 
LOW SWIM RISK*.    
SATURDAY NIGHT
 
LOW SWIM RISK*.    
SUNDAY
 
LOW SWIM RISK*.    
SUNDAY NIGHT
 
LOW SWIM RISK*.    
MONDAY
 
LOW SWIM RISK*.  
 

 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 

 
 
ILZ103-104-172130-  
NORTHERN COOK-CENTRAL COOK-  
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT  
1032 AM CDT THU JUL 17 2025  
   
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH FRIDAY MORNING
 
 
   
REST OF TODAY
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................3 TO 5 FEET BUILDING TO 4 TO 6 FEET.  
WATER TEMPERATURE...........70-74.  
WEATHER.....................MOSTLY CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER 70S.  
WINDS.......................NORTH WINDS 10 TO 15 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 6 FEET.  
WEATHER.....................PARTLY CLOUDY.  
LOW TEMPERATURE.............IN THE MID 60S.  
WINDS.......................NORTHEAST WINDS 10 TO 15 MPH.  
   
FRIDAY
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET.  
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY  
CLOUDY.  
HIGH TEMPERATURE............IN THE UPPER 70S.  
WINDS.......................EAST WINDS 5 TO 10 MPH.  
   
SWIM RISK OUTLOOK
 
   
FRIDAY NIGHT
 
LOW SWIM RISK*.    
SATURDAY
 
LOW SWIM RISK*.    
SATURDAY NIGHT
 
LOW SWIM RISK*.    
SUNDAY
 
LOW SWIM RISK*.    
SUNDAY NIGHT
 
LOW SWIM RISK*.    
MONDAY
 
LOW SWIM RISK*.  
 

 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 

 
 
INZ001-172130-  
LAKE-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
1032 AM CDT THU JUL 17 2025  
   
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH FRIDAY MORNING
 
 
   
REST OF TODAY
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 6 FEET.  
WATER TEMPERATURE...........70-74.  
WEATHER.....................MOSTLY CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER 70S.  
WINDS.......................NORTH WINDS 10 TO 15 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 7 FEET.  
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY  
CLOUDY.  
LOW TEMPERATURE.............IN THE MID 60S.  
WINDS.......................NORTHEAST WINDS 10 TO 15 MPH,  
DIMINISHING TO 5 TO 10 MPH LATE.  
   
FRIDAY
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET.  
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY  
CLOUDY.  
HIGH TEMPERATURE............IN THE UPPER 70S.  
WINDS.......................EAST WINDS AROUND 5 MPH.  
   
SWIM RISK OUTLOOK
 
   
FRIDAY NIGHT
 
LOW SWIM RISK*.    
SATURDAY
 
LOW SWIM RISK*.    
SATURDAY NIGHT
 
LOW SWIM RISK*.    
SUNDAY
 
LOW SWIM RISK*.    
SUNDAY NIGHT
 
LOW SWIM RISK*.    
MONDAY
 
LOW SWIM RISK*.  
 

 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 

 
 
INZ002-172130-  
PORTER-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
1032 AM CDT THU JUL 17 2025  
   
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH FRIDAY MORNING
 
 
   
REST OF TODAY
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 7 FEET.  
WATER TEMPERATURE...........70-74.  
WEATHER.....................CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER 70S.  
WINDS.......................NORTH WINDS AROUND 15 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 7 FEET.  
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY  
CLOUDY.  
LOW TEMPERATURE.............IN THE MID 60S.  
WINDS.......................NORTHEAST WINDS 10 TO 15 MPH, BECOMING  
EAST AROUND 5 MPH LATE.  
   
FRIDAY
 
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET.  
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY  
CLOUDY.  
HIGH TEMPERATURE............IN THE UPPER 70S.  
WINDS.......................EAST WINDS AROUND 5 MPH.  
   
SWIM RISK OUTLOOK
 
   
FRIDAY NIGHT
 
LOW SWIM RISK*.    
SATURDAY
 
LOW SWIM RISK*.    
SATURDAY NIGHT
 
LOW SWIM RISK*.    
SUNDAY
 
LOW SWIM RISK*.    
SUNDAY NIGHT
 
LOW SWIM RISK*.    
MONDAY
 
LOW SWIM RISK*.  
 

 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 

 
 
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