WATCHES: Tornado Watch Number 513

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

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