871  
FZUS53 KLOT 251502  
SRFLOT  
 
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES  
NATIONAL WEATHER SERVICE CHICAGO IL  
1002 AM CDT MON AUG 25 2025  
 
ILZ006-252145-  
LAKE-  
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK  
1002 AM CDT MON AUG 25 2025  
   
REST OF TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WATER TEMPERATURE...........71-75.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............AROUND 70.  
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................MOSTLY CLEAR.  
LOW TEMPERATURE.............IN THE MID 50S.  
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH.  
   
TUESDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER 70S.  
WINDS.......................NORTHWEST WINDS 5 TO 10 MPH.  
   
SWIM RISK OUTLOOK  
   
TUESDAY NIGHT  
LOW SWIM RISK*.    
WEDNESDAY  
LOW SWIM RISK*.    
WEDNESDAY NIGHT  
LOW SWIM RISK*.    
THURSDAY  
LOW SWIM RISK*.    
THURSDAY NIGHT  
HIGH SWIM RISK*.    
FRIDAY  
HIGH 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  
 
 
 
ILZ103-104-252145-  
NORTHERN COOK-CENTRAL COOK-  
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT  
1002 AM CDT MON AUG 25 2025  
   
REST OF TODAY  
 
SWIM RISK*..................MODERATE.  
WAVE HEIGHT.................2 TO 4 FEET.  
WATER TEMPERATURE...........71-75.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER 70S.  
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................MOSTLY CLEAR.  
LOW TEMPERATURE.............IN THE UPPER 50S.  
WINDS.......................NORTHWEST WINDS AROUND 10 MPH.  
   
TUESDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER 70S.  
WINDS.......................NORTHWEST WINDS AROUND 10 MPH.  
   
SWIM RISK OUTLOOK  
   
TUESDAY NIGHT  
LOW SWIM RISK*.    
WEDNESDAY  
LOW SWIM RISK*.    
WEDNESDAY NIGHT  
LOW SWIM RISK*.    
THURSDAY  
LOW SWIM RISK*.    
THURSDAY NIGHT  
HIGH SWIM RISK*.    
FRIDAY  
HIGH 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  
 
 
 
INZ001-252145-  
LAKE-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
1002 AM CDT MON AUG 25 2025  
   
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING  
 
   
REST OF TODAY  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................3 TO 5 FT.  
WATER TEMPERATURE...........71-75.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............AROUND 70.  
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH.  
   
TONIGHT  
 
SWIM RISK*..................MODERATE.  
WAVE HEIGHT.................2 TO 4 FEET.  
WEATHER.....................MOSTLY CLEAR.  
LOW TEMPERATURE.............IN THE UPPER 50S.  
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH.  
   
TUESDAY  
 
SWIM RISK*..................MODERATE.  
WAVE HEIGHT.................2 TO 4 FEET.  
WEATHER.....................SUNNY, THEN BECOMING PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER 70S.  
WINDS.......................NORTHWEST WINDS 5 TO 10 MPH.  
   
SWIM RISK OUTLOOK  
   
TUESDAY NIGHT  
MODERATE SWIM RISK*.    
WEDNESDAY  
LOW SWIM RISK*.    
WEDNESDAY NIGHT  
LOW SWIM RISK*.    
THURSDAY  
LOW SWIM RISK*.    
THURSDAY NIGHT  
HIGH SWIM RISK*.    
FRIDAY  
MODERATE 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  
 
 
 
INZ002-252145-  
PORTER-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
1002 AM CDT MON AUG 25 2025  
   
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH TUESDAY EVENING  
 
   
REST OF TODAY  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 7 FT SUBSIDING TO 3 TO 5 FT.  
WATER TEMPERATURE...........71-75.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE UPPER 60S.  
WINDS.......................NORTHWEST WINDS 15 TO 20 MPH.  
   
TONIGHT  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................3 TO 5 FEET.  
WEATHER.....................PARTLY CLOUDY.  
LOW TEMPERATURE.............IN THE LOWER 60S.  
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH.  
   
TUESDAY  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................3 TO 5 FEET.  
WEATHER.....................MOSTLY SUNNY.  
HIGH TEMPERATURE............IN THE UPPER 60S.  
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH.  
   
SWIM RISK OUTLOOK  
   
TUESDAY NIGHT  
MODERATE SWIM RISK*.    
WEDNESDAY  
LOW SWIM RISK*.    
WEDNESDAY NIGHT  
LOW SWIM RISK*.    
THURSDAY  
LOW SWIM RISK*.    
THURSDAY NIGHT  
HIGH SWIM RISK*.    
FRIDAY  
MODERATE 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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