572  
FNUS73 KLOT 281839  
FWSLOT  
 
SPOT FORECAST FOR PLF SAR...NAIONAL PARK SERVICE  
NATIONAL WEATHER SERVICE CHICAGO IL  
139 PM CDT MON APR 28 2025  
 
PLEASE CONTACT OUR OFFICE AT (815) 834-0666 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
THIS AFTERNOON WILL REMAIN WARM AND BREEZY WITH A SOUTH WIND.  
GIVEN THE OFFSHORE WIND COMPONENT, WAVES WILL BE RELATIVELY MUTED  
AT 1 TO 2 FEET.  
 
A FEW SHOWERS AND THUNDERSTORMS MAY OCCUR OVERNIGHT, WITH ONLY  
A 20% CHANCE BETWEEN MIDNIGHT AND DAYBREAK TUESDAY. SOUTH TO  
SOUTHWEST WINDS WILL REMAIN BREEZY OVERNIGHT, AND WAVES WILL  
REMAIN SIMILAR TO THIS AFTERNOON AT 1 TO 2 FEET.  
 
TOMORROW, SOUTHWEST WINDS WILL TURN WEST AND EVENTUALLY NORTHERLY  
THROUGHOUT THE DAY, WITH SPEEDS OF 20 TO 30 MPH IN THE MORNING  
EASING TO 10 TO 15 MPH IN THE AFTERNOON. A FEW SHOWERS CANNOT BE  
RULED OUT IN THE MORNING (AGAIN, A 20% CHANCE OR SO).  
 
WATER TEMPERATURES WILL REMAIN IN THE UPPER 40S THROUGH TOMORROW.  
   
REST OF TODAY
 
 
WAVE HEIGHT.........1 TO 2 FEET.  
WAVE PERIOD.........2 TO 4 SECONDS.  
WINDS...............SOUTH AT 15 TO 25 MPH.  
 
TIME (CDT) 2PM 3PM 4PM 5PM  
WIND DIR........180 180 180 180  
WIND SPEED......15 18 22 24  
WAVE HEIGHT (FT)1 1 1 1  
WAVE PERIOD (S).3 3 3 3  
   
TONIGHT
 
 
WAVE HEIGHT.........1 TO 2 FEET.  
WAVE PERIOD.........2 TO 4 SECONDS.  
WINDS...............SOUTHWEST AT 20 TO 30 MPH.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
WIND DIR........190 190 190 200 200 200 200 210 210 210 210 210  
WIND SPEED......24 25 25 24 25 25 24 24 23 23 24 24  
WAVE HEIGHT (FT)1 1 1 1 1 1 1 1 1 1 1 1  
WAVE PERIOD (S).3 3 3 3 3 3 3 3 3 3 3 3  
   
TUESDAY
 
 
WAVE HEIGHT.........1 TO 2 FEET IN THE MORNING BUILDING TO 2 TO 4  
FEET IN THE AFTERNOON.  
WAVE PERIOD.........3 TO 5 SECONDS.  
MIXING HEIGHT.......2500 FT AGL.  
WINDS...............SOUTHWEST 20 TO 30 MPH BECOMING WEST IN THE  
MORNING, THEN BECOMING NORTH 10 TO 15 MPH  
IN THE AFTERNOON.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
WIND DIR........220 220 220 230 240 250 260 270 290 310 340 350  
WIND SPEED......25 24 26 26 28 30 22 20 18 15 12 10  
WAVE HEIGHT (FT)1 1 2 2 2 2 2 3 3 3 2 2  
WAVE PERIOD (S).3 3 3 3 3 4 4 4 4 4 4 4  
 

 
FORECASTER...BORCHARDT  
REQUESTED BY...JOE JAMES  
TYPE OF REQUEST...SAR  
.TAG 2512028.0/LOT  
.DELDT 04/28/25  
.FORMATTERVERSION 2.0.0  
 
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