491  
WGUS43 KLOT 070709  
FLWLOT  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
FLOOD WARNING  
NATIONAL WEATHER SERVICE CHICAGO IL  
109 AM CST SAT MAR 7 2026  
 
...THE NATIONAL WEATHER SERVICE IN CHICAGO IL HAS ISSUED A FLOOD  
WARNING FOR THE FOLLOWING RIVERS IN ILLINOIS...  
 
THORN CREEK AT THORNTON AFFECTING COOK COUNTY.  
 
FOR THE THORN CREEK...INCLUDING THORNTON...MINOR FLOODING IS  
FORECAST.  
 
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.  
 
ADDITIONAL INFORMATION IS AVAILABLE AT WWW.WEATHER.GOV.  
 
THE NEXT STATEMENT WILL BE ISSUED BY THIS EVENING.  
 
 
 
ILC031-080115-  
/O.NEW.KLOT.FL.W.0002.260307T0737Z-260308T0400Z/  
/THNI2.1.ER.260307T0737Z.260307T1200Z.260307T2200Z.NO/  
109 AM CST SAT MAR 7 2026  
   
..FLOOD WARNING IN EFFECT UNTIL LATE THIS EVENING  
 
* WHAT...MINOR FLOODING IS FORECAST.  
 
* WHERE...THORN CREEK FROM NEAR GLENWOOD DOWNSTREAM TO CONFLUENCE  
WITH LITTLE CALUMET RIVER, INCLUDING THE THORNTON GAUGE.  
 
* WHEN...UNTIL LATE THIS EVENING.  
 
* IMPACTS...AT 11.0 FEET, 187TH STREET THREATENED IN GLENWOOD.  
 
* ADDITIONAL DETAILS...  
- AT 12:45 AM CST SATURDAY THE STAGE WAS 8.8 FEET.  
- FORECAST...THE RIVER IS EXPECTED TO RISE ABOVE FLOOD STAGE  
EARLY THIS MORNING TO A CREST OF 10.1 FEET THIS MORNING. IT  
WILL THEN FALL BELOW FLOOD STAGE LATE THIS AFTERNOON.  
- FLOOD STAGE IS 9.0 FEET.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 
 
 
LAT...LON 4161 8760 4158 8754 4151 8760 4154 8767  
 
 
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