766  
WGUS83 KLOT 200100  
FLSLOT  
 
FLOOD STATEMENT  
NATIONAL WEATHER SERVICE CHICAGO IL  
800 PM CDT SUN APR 19 2026  
 
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN  
ILLINOIS...  
 
ROCK RIVER AT BYRON AFFECTING OGLE COUNTY.  
 
ROCK RIVER AT ROCKTON AFFECTING WINNEBAGO COUNTY.  
 
ROCK RIVER AT LATHAM PARK AFFECTING WINNEBAGO COUNTY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FLOOD WARNING MEANS WATER LEVELS ABOVE FLOOD STAGE ARE IMMINENT OR  
MAY ALREADY BE OCCURRING. PERSONS ALONG RIVERS AND STREAMS IN THE  
WARNED AREA SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND  
PROPERTY.  
 
THESE FORECASTS ARE BASED ON OBSERVED PRECIPITATION AS WELL AS  
FORECAST PRECIPITATION 24 HOURS INTO THE FUTURE. CHANGES TO THE  
RAINFALL FORECAST, OR ANY ADDITIONAL RAINFALL AFTER 24 HOURS, MAY  
CAUSE CHANGES TO THESE RIVER FORECASTS.  
 
ADDITIONAL INFORMATION IS AVAILABLE AT WWW.WEATHER.GOV.  
 
THE NEXT STATEMENT WILL BE ISSUED BY MONDAY AFTERNOON.  
 

 
 
ILC141-201900-  
/O.CON.KLOT.FL.W.0026.000000T0000Z-000000T0000Z/  
/BYRI2.2.ER.260417T1800Z.260420T0600Z.260424T1200Z.NO/  
800 PM CDT SUN APR 19 2026  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING AND FORECASTED TO CONTINUE.  
 
* WHERE...ROCK RIVER FROM CONFLUENCE WITH KISHWAUKEE RIVER TO CASTLE  
ROCK STATE PARK NEAR OREGON, INCLUDING THE BYRON GAUGE.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 15.5 FEET, WATER THREATENS LOWER SECTIONS OF THE  
WATER TREATMENT PLANT PROPERTY IN BYRON. WATER THREATENS IL-2 WEST  
OF BYRON.  
 
* ADDITIONAL DETAILS...  
- AT 7:15 PM CDT SUNDAY THE STAGE WAS 15.2 FEET.  
- FORECAST...THE RIVER IS EXPECTED TO REMAIN NEARLY STEADY  
THROUGH TOMORROW AFTERNOON BEFORE GRADUALLY FALLING  
THEREAFTER.  
- FLOOD STAGE IS 13.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
LAT...LON 4222 8917 4218 8910 4207 8927 4195 8932  
4198 8942 4211 8937  
 

 
 
ILC201-201900-  
/O.CON.KLOT.FL.W.0025.000000T0000Z-000000T0000Z/  
/ROKI2.2.ER.260416T2122Z.260419T0445Z.000000T0000Z.NO/  
800 PM CDT SUN APR 19 2026  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING AND FORECASTED TO CONTINUE.  
 
* WHERE...ROCK RIVER FROM PRAIRIE HILL ROAD DOWNSTREAM TO SWANSON  
ROAD IN ROSCOE, INCLUDING THE ROCKTON GAUGE.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 12.0 FEET, MULTIPLE LOW-LYING ROADS THREATENED ALONG  
THE RIVER IN ROSCOE.  
 
* ADDITIONAL DETAILS...  
- AT 7:30 PM CDT SUNDAY THE STAGE WAS 12.3 FEET.  
- FORECAST...THE RIVER IS EXPECTED TO REMAIN NEARLY STEADY  
THROUGH AT LEAST THE MIDDLE OF THE WEEK.  
- FLOOD STAGE IS 10.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
LAT...LON 4248 8910 4247 8902 4245 8902 4239 8898  
4239 8908 4246 8912  
 

 
 
ILC201-201900-  
/O.CON.KLOT.FL.W.0024.000000T0000Z-000000T0000Z/  
/LATI2.2.ER.260416T1543Z.260419T1330Z.000000T0000Z.NO/  
800 PM CDT SUN APR 19 2026  
   
..FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE
 
 
* WHAT...MODERATE FLOODING IS OCCURRING AND FORECASTED TO CONTINUE.  
 
* WHERE...ROCK RIVER FROM SWANSON ROAD IN ROSCOE DOWNSTREAM TO  
SHOREWOOD PARK IN LOVES PARK, INCLUDING THE LATHAM PARK GAUGE.  
 
* WHEN...UNTIL FURTHER NOTICE.  
 
* IMPACTS...AT 11.5 FEET, QUEEN OAKS DRIVE IS THREATENED IN  
MACHESNEY PARK. LOWER-LEVEL OF ELEVATED STRUCTURES THREATENED  
ALONG HARBOR LIGHTS COURT WEST OF MACHESNEY PARK. RITTER DRIVE IS  
THREATENED NORTH OF BALDWIN DRIVE IN MACHESNEY PARK.  
 
* ADDITIONAL DETAILS...  
- AT 7:30 PM CDT SUNDAY THE STAGE WAS 11.7 FEET.  
- FORECAST...THE RIVER IS EXPECTED TO REMAIN NEARLY STEADY  
THROUGH AT LEAST THE MIDDLE OF THE WEEK.  
- FLOOD STAGE IS 9.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 

 
 
LAT...LON 4239 8908 4239 8898 4230 8903 4230 8911  
 

 
 
BORCHARDT  
 
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