

992 

WWUS20 KWNS 091951

SEL4

SPC WW 091951

COZ000-KSZ000-NEZ000-WYZ000-100300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 754

NWS STORM PREDICTION CENTER NORMAN OK

155 PM MDT TUE AUG 9 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHEAST COLORADO

       NORTHWEST KANSAS

       SOUTHWEST NEBRASKA

       SOUTHEAST WYOMING



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 155 PM UNTIL

900 PM MDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST NORTHWEST OF

CHEYENNE WYOMING TO 35 MILES EAST OF MCCOOK NEBRASKA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU4).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 753...



DISCUSSION...ISOLATED SUPERCELL THUNDERSTORMS WILL AFFECT THE WATCH

AREA THROUGH THE AFTERNOON AND EARLY EVENING.  PRIMARY RISK OF

ISOLATED TORNADOES WILL BE NEAR A WEAK BOUNDARY ACROSS THE SOUTHERN

NEB PANHANDLE...WITH HAIL AND WIND THREATS GREATEST ACROSS REMAINDER

OF WATCH.  STORMS MAY EVENTUALLY GROW UPSCALE AND TRACK INTO

NORTHWEST KS.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 30030.





...HART

