518  
WWUS83 KDMX 212153  
SPSDMX  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE DES MOINES IA  
453 PM CDT THU JUN 21 2018  
 
IAZ070>075-083>086-212330-  
CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-CLARKE-LUCAS-MONROE-  
WAPELLO-  
INCLUDING THE CITIES OF ATLANTIC, GREENFIELD, STUART, ADAIR,  
FONTANELLE, WINTERSET, EARLHAM, INDIANOLA, NORWALK, CARLISLE,  
PELLA, KNOXVILLE, OSKALOOSA, OSCEOLA, CHARITON, ALBIA,  
AND OTTUMWA  
453 PM CDT THU JUN 21 2018  
   
..CONDITIONS ARE FAVORABLE FOR FUNNEL CLOUDS
 
 
CURRENT ATMOSPHERIC CONDITIONS SUPPORT THE DEVELOPMENT OF FUNNEL  
CLOUDS. USUALLY, THESE FUNNEL CLOUDS CAN FORM FROM SHOWERS AND  
WEAK THUNDERSTORMS. THESE FUNNELS ARE NORMALLY BRIEF, DROP ONLY  
A FEW HUNDRED FEET FROM THE CLOUD BASE, AND RARELY BECOME A  
TORNADO OR CAUSE DAMAGE. HOWEVER, IF ONE IS SPOTTED, PLEASE  
IMMEDIATELY REPORT IT TO THE NATIONAL WEATHER SERVICE. IF A  
TORNADO WARNING WOULD BECOME NECESSARY, TAKE APPROPRIATE ACTION.  
 

 
 
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