091
WWUS20 KWNS 112216
SEL9
SPC WW 112216
COZ000-KSZ000-NEZ000-WYZ000-120500-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 509
NWS STORM PREDICTION CENTER NORMAN OK
420 PM MDT FRI JUL 11 2025
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTH-CENTRAL AND NORTHEAST COLORADO
FAR NORTHWEST KANSAS
SOUTHWEST NEBRASKA AND THE NEBRASKA PANHANDLE
SOUTHEAST WYOMING
* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 420 PM UNTIL
1100 PM MDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
MPH POSSIBLE
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SUMMARY...SCATTERED STRONG TO SEVERE THUNDERSTORMS SHOULD SPREAD
GENERALLY EAST-SOUTHEASTWARD THIS EVENING WHILE POSING A THREAT FOR
BOTH LARGE HAIL AND SEVERE/DAMAGING WINDS. THE LARGEST HAIL MAY
REACH UP TO 1-2 INCHES IN DIAMETER, WHILE PEAK GUSTS OF 65-75 MPH
APPEAR POSSIBLE IF A CLUSTER OF THUNDERSTORMS CAN FORM LATER THIS
EVENING.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES WEST SOUTHWEST
OF CHEYENNE WY TO 15 MILES NORTHEAST OF MCCOOK NE. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU9).
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 505...WW 506...WW
507...WW 508...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR
30025.
...GLEASON
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page