509  
FZUS53 KLOT 042015  
SRFLOT  
 
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES  
NATIONAL WEATHER SERVICE CHICAGO IL  
315 PM CDT FRI JUL 4 2025  
 
ILZ006-050915-  
LAKE-  
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK  
315 PM CDT FRI JUL 4 2025  
   
REST OF TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WATER TEMPERATURE...........72-76.  
WEATHER.....................MOSTLY CLOUDY.  
HIGH TEMPERATURE............IN THE MID 80S.  
WINDS.......................SOUTH-SOUTHEAST WINDS AROUND 10 MPH.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................MOSTLY CLEAR.  
LOW TEMPERATURE.............IN THE MID 70S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
SATURDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY  
CLOUDY.  
HIGH TEMPERATURE............IN THE MID 90S.  
WINDS.......................SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO  
25 MPH IN THE AFTERNOON.  
   
SWIM RISK OUTLOOK  
   
SATURDAY NIGHT  
LOW SWIM RISK*.    
SUNDAY  
LOW SWIM RISK*.    
SUNDAY NIGHT  
MODERATE SWIM RISK*.    
MONDAY  
MODERATE SWIM RISK*.    
MONDAY NIGHT  
LOW SWIM RISK*.    
TUESDAY  
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  
 
 
 
ILZ103-104-050915-  
NORTHERN COOK-CENTRAL COOK-  
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT  
315 PM CDT FRI JUL 4 2025  
   
REST OF TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WATER TEMPERATURE...........73-77.  
WEATHER.....................MOSTLY CLOUDY.  
HIGH TEMPERATURE............IN THE UPPER 80S.  
WINDS.......................SOUTHEAST WINDS 5 TO 10 MPH.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................PARTLY CLOUDY.  
LOW TEMPERATURE.............IN THE UPPER 70S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
SATURDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY  
CLOUDY.  
HIGH TEMPERATURE............IN THE MID 90S.  
WINDS.......................SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO  
25 MPH IN THE AFTERNOON.  
   
SWIM RISK OUTLOOK  
   
SATURDAY NIGHT  
LOW SWIM RISK*.    
SUNDAY  
LOW SWIM RISK*.    
SUNDAY NIGHT  
MODERATE SWIM RISK*.    
MONDAY  
MODERATE SWIM RISK*.    
MONDAY NIGHT  
LOW SWIM RISK*.    
TUESDAY  
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  
 
 
 
INZ001-050915-  
LAKE-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
315 PM CDT FRI JUL 4 2025  
   
REST OF TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WATER TEMPERATURE...........73-77.  
WEATHER.....................MOSTLY CLOUDY.  
HIGH TEMPERATURE............AROUND 90.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................MOSTLY CLEAR.  
LOW TEMPERATURE.............IN THE MID 70S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
SATURDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY  
CLOUDY.  
HIGH TEMPERATURE............IN THE MID 90S.  
WINDS.......................SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO  
25 MPH IN THE AFTERNOON.  
   
SWIM RISK OUTLOOK  
   
SATURDAY NIGHT  
LOW SWIM RISK*.    
SUNDAY  
LOW SWIM RISK*.    
SUNDAY NIGHT  
MODERATE SWIM RISK*.    
MONDAY  
MODERATE SWIM RISK*.    
MONDAY NIGHT  
LOW SWIM RISK*.    
TUESDAY  
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  
 
 
 
INZ002-050915-  
PORTER-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
315 PM CDT FRI JUL 4 2025  
   
REST OF TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WATER TEMPERATURE...........73-77.  
WEATHER.....................MOSTLY CLOUDY.  
HIGH TEMPERATURE............IN THE UPPER 80S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................MOSTLY CLEAR.  
LOW TEMPERATURE.............IN THE MID 70S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
SATURDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY  
CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER 90S.  
WINDS.......................SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO  
20 MPH IN THE AFTERNOON.  
   
SWIM RISK OUTLOOK  
   
SATURDAY NIGHT  
LOW SWIM RISK*.    
SUNDAY  
LOW SWIM RISK*.    
SUNDAY NIGHT  
MODERATE SWIM RISK*.    
MONDAY  
MODERATE SWIM RISK*.    
MONDAY NIGHT  
LOW SWIM RISK*.    
TUESDAY  
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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