373  
FLUS73 KOAX 162346  
AWUOAX  
 
AREA WEATHER UPDATE  
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE  
646 PM CDT FRI JUN 16 2017  
 
IAZ043-055-056-069-NEZ030>034-042>045-050>052-170200-  
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-BOONE-MADISON-STANTON-CUMING-  
BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-SAUNDERS-DOUGLAS-  
INCLUDING THE CITIES OF ONAWA, MAPLETON, MISSOURI VALLEY,  
WOODBINE, LOGAN, DUNLAP, HARLAN, COUNCIL BLUFFS, ALBION,  
ST. EDWARD, NORFOLK, STANTON, WEST POINT, WISNER, TEKAMAH,  
OAKLAND, LYONS, DECATUR, COLUMBUS, SCHUYLER, FREMONT, BLAIR,  
DAVID CITY, WAHOO, ASHLAND, YUTAN, AND OMAHA  
646 PM CDT FRI JUN 16 2017  
 
SUPERCELL THUNDERSTORMS THAT HAVE PRODUCED BRIEF TORNADOES,  
DAMAGING WINDS, AND LARGE HAIL ARE BEGINNING TO BECOME OUTFLOW  
DOMINANT OVER CUMING, STANTON, AND PLATTE COUNTIES. FURTHEREST  
WEST SUPERCELL IN PLATTE COUNTY MAY STILL BE A CANDIDATE TO  
PRODUCE A TORNADO AS THERE IS AN INTERSECTION OF AN EAST WEST  
TROUGH AND NEAR A SURFACE MESOLOW. THIS IS ALSO WHERE THE 0-1 KM  
HELICITY VALUES ARE AROUND 150 M2/S2.  
 
EXPECT STORMS TO BECOME PRIMARILLY A DAMAGING WIND AND LARGE HAIL  
THREAT WITH TIME AS THEY DRIVE SOUTHEAST OVER PLATTE, COLFAX,  
DODGE AND WASHINGTON COUNTIES AND EVENTUALLY INTO THE OMAHA METRO  
AREA. STORMS ARE MOVING INTO A HIGHER MOISTURE ENVIRONMENT AND  
FAVORABLE DOWNDRAFT CAPES AROUND 1200 J/KG. EXPECT STORMS TO REACH  
THE OMAHA METRO AREA AROUND 8 PM CDT WITH THE THREATS OF DAMAGING  
WINDS AND LARGE HAIL.  
 

 
 
SMITH  
 
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