335  
WWUS20 KWNS 100404  
SEL1  
SPC WW 100404  
COZ000-KSZ000-NEZ000-100900-  
 
URGENT - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WATCH NUMBER 551  
NWS STORM PREDICTION CENTER NORMAN OK  
1005 PM MDT SUN AUG 9 2026  
 
THE NWS STORM PREDICTION CENTER HAS ISSUED A  
 
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF  
FAR NORTHEAST COLORADO  
NORTHWEST KANSAS  
FAR SOUTHWEST NEBRASKA  
 
* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1005 PM  
UNTIL 300 AM MDT.  
 
* PRIMARY THREATS INCLUDE...  
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE  
ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE  
 
SUMMARY...A LINE OF THUNDERSTORMS CAPABLE OF PRODUCING STRONG TO  
SEVERE GUSTS IS FORECAST TO CONTINUE PROGRESSING SOUTHEASTWARD,  
MOVING FROM FAR SOUTHWEST NEBRASKA/FAR NORTHEAST COLORADO THROUGH  
NORTHWEST KANSAS TONIGHT.  
 
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60  
STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES WEST SOUTHWEST  
OF HILL CITY KS TO 40 MILES WEST NORTHWEST OF MCCOOK NE. FOR A  
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE  
UPDATE (WOUS64 KWNS WOU1).  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE  
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE  
TORNADOES.  
 

 
 
OTHER WATCH INFORMATION...CONTINUE...WW 549...WW 550...  
 
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO  
1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW  
CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR  
33035.  
 
...MOSIER  
 
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