091  
FZUS53 KLOT 310826  
SRFLOT  
 
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES  
NATIONAL WEATHER SERVICE CHICAGO IL  
326 AM CDT FRI JUL 31 2026  
 
ILZ006-010830-  
LAKE-  
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK  
326 AM CDT FRI JUL 31 2026  
 
...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WATER TEMPERATURE...........68-72.  
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS IN  
THE AFTERNOON.  
HIGH TEMPERATURE............IN THE LOWER 80S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH, BECOMING  
SOUTHEAST 10 TO 15 MPH IN THE  
AFTERNOON.  
   
TONIGHT  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 6 FEET.  
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF  
THUNDERSTORMS.  
LOW TEMPERATURE.............IN THE UPPER 60S.  
WINDS.......................BREEZY. SOUTHEAST WINDS 15 TO 20 MPH,  
BECOMING EAST 15 TO 25 MPH IN THE LATE  
EVENING AND OVERNIGHT.  
   
SATURDAY  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................6 TO 9 FEET.  
WEATHER.....................CLOUDY. SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS.  
HIGH TEMPERATURE............IN THE MID 70S.  
WINDS.......................WINDY. NORTHEAST WINDS 20 TO 25 MPH  
WITH GUSTS UP TO 35 MPH.  
   
SWIM RISK OUTLOOK  
   
SATURDAY NIGHT  
HIGH SWIM RISK*.    
SUNDAY  
HIGH SWIM RISK*.    
SUNDAY NIGHT  
HIGH SWIM RISK*.    
MONDAY  
HIGH 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  
 
 
 
ILZ103-104-010830-  
NORTHERN COOK-CENTRAL COOK-  
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT  
326 AM CDT FRI JUL 31 2026  
 
...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH MONDAY  
MORNING...  
   
TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WATER TEMPERATURE...........70-74.  
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE  
AFTERNOON.  
HIGH TEMPERATURE............IN THE MID 80S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH, BECOMING  
SOUTHEAST 10 TO 15 MPH IN THE  
AFTERNOON.  
   
TONIGHT  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 6 FEET.  
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF  
THUNDERSTORMS.  
LOW TEMPERATURE.............IN THE UPPER 60S.  
WINDS.......................BREEZY. SOUTHEAST WINDS 15 TO 20 MPH,  
BECOMING EAST 15 TO 25 MPH IN THE LATE  
EVENING AND OVERNIGHT.  
   
SATURDAY  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................6 TO 9 FEET.  
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF  
THUNDERSTORMS.  
HIGH TEMPERATURE............IN THE MID 70S.  
WINDS.......................WINDY. EAST WINDS 20 TO 25 MPH,  
BECOMING NORTHEAST 20 TO 30 MPH LATE.  
   
SWIM RISK OUTLOOK  
   
SATURDAY NIGHT  
HIGH SWIM RISK*.    
SUNDAY  
HIGH SWIM RISK*.    
SUNDAY NIGHT  
HIGH SWIM RISK*.    
MONDAY  
HIGH 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  
 
 
 
INZ001-010830-  
LAKE-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
326 AM CDT FRI JUL 31 2026  
 
...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY MORNING THROUGH  
MONDAY MORNING...  
   
TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WATER TEMPERATURE...........70-74.  
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS  
LATE.  
HIGH TEMPERATURE............IN THE MID 80S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
TONIGHT  
 
SWIM RISK*..................MODERATE.  
WAVE HEIGHT.................2 TO 4 FEET.  
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF  
THUNDERSTORMS.  
LOW TEMPERATURE.............IN THE UPPER 60S.  
WINDS.......................SOUTH WINDS 10 TO 20 MPH, BECOMING EAST  
15 TO 25 MPH IN THE LATE EVENING AND  
OVERNIGHT.  
   
SATURDAY  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 7 FEET.  
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF  
THUNDERSTORMS.  
HIGH TEMPERATURE............IN THE MID 70S.  
WINDS.......................BREEZY. EAST WINDS 15 TO 25 MPH,  
BECOMING NORTHEAST.  
   
SWIM RISK OUTLOOK  
   
SATURDAY NIGHT  
HIGH SWIM RISK*.    
SUNDAY  
HIGH SWIM RISK*.    
SUNDAY NIGHT  
HIGH SWIM RISK*.    
MONDAY  
HIGH 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  
 
 
 
INZ002-010830-  
PORTER-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
326 AM CDT FRI JUL 31 2026  
 
...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY MORNING THROUGH  
MONDAY MORNING...  
   
TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WATER TEMPERATURE...........70-74.  
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS LATE.  
HIGH TEMPERATURE............IN THE MID 80S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF  
THUNDERSTORMS.  
LOW TEMPERATURE.............IN THE UPPER 60S.  
WINDS.......................SOUTH WINDS 10 TO 20 MPH, BECOMING  
EAST IN THE LATE EVENING AND OVERNIGHT.  
   
SATURDAY  
 
SWIM RISK*..................HIGH.  
WAVE HEIGHT.................4 TO 6 FEET.  
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF  
THUNDERSTORMS.  
HIGH TEMPERATURE............IN THE MID 70S.  
WINDS.......................EAST WINDS 15 TO 25 MPH, BECOMING  
NORTHEAST LATE.  
   
SWIM RISK OUTLOOK  
   
SATURDAY NIGHT  
HIGH SWIM RISK*.    
SUNDAY  
HIGH SWIM RISK*.    
SUNDAY NIGHT  
HIGH SWIM RISK*.    
MONDAY  
HIGH 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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