804
WWUS20 KWNS 210258
SEL4
SPC WW 210258
COZ000-KSZ000-210900-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 674
NWS STORM PREDICTION CENTER NORMAN OK
900 PM MDT SUN SEP 20 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EASTERN COLORADO
WESTERN KANSAS
* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 900 PM
UNTIL 300 AM MDT.
* PRIMARY THREATS INCLUDE...
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
ISOLATED DAMAGING WIND GUSTS TO 60 MPH POSSIBLE
SUMMARY...EASTERLY LOW-LEVEL WINDS AND A MOIST AIR MASS WILL SUPPORT
ADDITIONAL STRONG TO SEVERE THUNDERSTORM DEVELOPMENT THIS EVENING.
SOME OF THESE STORMS WILL BE CAPABLE OF LARGE HAIL AND LOCALLY
DAMAGING WINDS INTO THE OVERNIGHT.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTH
NORTHWEST OF COLORADO SPRINGS CO TO 50 MILES SOUTH OF GOODLAND KS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).
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 673...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR
30020.
...GUYER
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