828  
WWUS20 KWNS 111228  
SEL1  
SPC WW 111228  
IAZ000-ILZ000-MOZ000-112000-  
 
URGENT - IMMEDIATE BROADCAST REQUESTED  
TORNADO WATCH NUMBER 311  
NWS STORM PREDICTION CENTER NORMAN OK  
730 AM CDT THU JUN 11 2026  
 
THE NWS STORM PREDICTION CENTER HAS ISSUED A  
 
* TORNADO WATCH FOR PORTIONS OF  
SOUTHERN AND EASTERN IOWA  
NORTHWEST ILLINOIS  
FAR NORTHERN MISSOURI  
 
* EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 730 AM UNTIL  
300 PM CDT.  
 
* PRIMARY THREATS INCLUDE...  
A FEW TORNADOES AND A COUPLE INTENSE TORNADOES POSSIBLE  
WIDESPREAD DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS  
TO 80 MPH POSSIBLE  
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2  
INCHES IN DIAMETER POSSIBLE  
 
SUMMARY...A WELL-ORGANIZED AND INTENSE BOWING LINEAR SYSTEM WILL  
CONTINUE EASTWARD THIS MORNING WITH THE POTENTIAL FOR WIDESPREAD  
DAMAGING WINDS AND POTENTIALLY AN INCREASING TORNADO RISK, WITH THE  
INTENSE CONVECTIVE LINE AS WELL AS ANY STORMS DEVELOPING AHEAD OF  
IT.  
 
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE MILES  
NORTH AND SOUTH OF A LINE FROM KNOXVILLE IA TO 40 MILES EAST  
SOUTHEAST OF MOLINE IL. FOR A COMPLETE DEPICTION OF THE WATCH SEE  
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR  
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH  
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR  
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS  
AND POSSIBLE WARNINGS.  
 
 
 
OTHER WATCH INFORMATION...CONTINUE...WW 310...  
 
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL  
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND  
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN  
STORM MOTION VECTOR 27045.  
 
...GUYER  
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