

952 

WWUS20 KWNS 192006

SEL3

SPC WW 192006

COZ000-NEZ000-200300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 513

NWS STORM PREDICTION CENTER NORMAN OK

305 PM CDT SUN JUN 19 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       LARGE PART OF NORTHEASTERN COLORADO

       PARTS OF WESTERN NEBRASKA



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 305 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 3.5 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 EAST AND WEST OF A LINE FROM 20 MILES WEST SOUTHWEST OF

LIMON COLORADO TO 75 MILES NORTHEAST OF SIDNEY NEBRASKA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU3).



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 511...WW 512...



DISCUSSION...AIR MASS CONTINUES TO DESTABILIZE ACROSS HI PLAINS AS

FOR SUPERCELLS. CONVERGENCE VICINITY DEN ONE AREA OF LIKELY

INITIATION SOON WITH ADDITIONAL STORMS DEVELOPING OFF THE HIGHER

TERRAIN.  SUPERCELLS WITH POTENTIAL FOR VERY LARGE HAIL AND A FEW

TORNADOES ARE LIKELY AS  STORMS DEVELOP UPSCALE AND MOVE FURTHER NE.



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

SURFACE AND ALOFT TO 3.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 24025.





...HALES

